WO2007043146A1 - Hollow body, sheet body and process for producing these - Google Patents

Hollow body, sheet body and process for producing these Download PDF

Info

Publication number
WO2007043146A1
WO2007043146A1 PCT/JP2005/018444 JP2005018444W WO2007043146A1 WO 2007043146 A1 WO2007043146 A1 WO 2007043146A1 JP 2005018444 W JP2005018444 W JP 2005018444W WO 2007043146 A1 WO2007043146 A1 WO 2007043146A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
hollow
hollow portion
bonding layer
portion forming
Prior art date
Application number
PCT/JP2005/018444
Other languages
French (fr)
Japanese (ja)
Inventor
Tatsuki Miyoshi
Original Assignee
New Line Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by New Line Corporation filed Critical New Line Corporation
Priority to PCT/JP2005/018444 priority Critical patent/WO2007043146A1/en
Priority to JP2007539767A priority patent/JP4847964B2/en
Publication of WO2007043146A1 publication Critical patent/WO2007043146A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/524—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by applying the adhesive from an outlet device in contact with, or almost in contact with, the surface of the part to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7888—Means for handling of moving sheets or webs
    • B29C65/7894—Means for handling of moving sheets or webs of continuously moving sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/524—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by applying the adhesive from an outlet device in contact with, or almost in contact with, the surface of the part to be joined
    • B29C65/525—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by applying the adhesive from an outlet device in contact with, or almost in contact with, the surface of the part to be joined by extrusion coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
    • B29C65/527—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by gravity only, e.g. by pouring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/005—Hoses, i.e. flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
    • B29L2031/601—Multi-tubular articles, i.e. composed of a plurality of tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/002—Flexible containers made from webs by joining superimposed webs, e.g. with separate bottom webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2170/00—Construction of flexible containers
    • B31B2170/20—Construction of flexible containers having multi-layered walls, e.g. laminated or lined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/40—Closed containers
    • B32B2439/46—Bags

Definitions

  • the present invention relates to a hollow body, a sheet body, and a method for producing them, and in particular, a hollow body that can be easily produced, a sheet body that can be produced with low production cost and a small space, and production thereof. Regarding the method.
  • a hollow body for flowing a fluid and a hollow body used as a material for manufacturing a bag body have been manufactured by an inflation method.
  • the inflation method is performed by blowing air into the inside of the resin to swell, the equipment becomes large, so a sheet body is formed by a method such as the so-called ⁇ die extrusion method or dry lamination method,
  • a hollow body can be manufactured by stacking a plurality of sheet bodies in the vertical direction and joining both end portions of each sheet body facing in the vertical direction.
  • sheet bodies produced by the T-die extrusion method are used as they are for various applications.
  • Patent Document 1 The idea regarding the T-die extrusion method is disclosed in Patent Document 1 shown below, for example.
  • Patent Document 1 JP 2000-326391 A
  • the laminating material has to be applied to a narrow area of the side edge of the sheet, the laminating material has to be applied in a narrow range, so it is necessary to control the accuracy of the production, and it cannot be easily manufactured. .
  • the width dimension of the sheet body manufactured by the T die depends on the width dimension of the saddle die. Therefore, in order to manufacture a sheet body having a large width dimension, a ⁇ die that is as large as the width dimension of the sheet body to be manufactured is required, so that the manufacturing cost increases and the manufacturing space is secured. It becomes difficult.
  • the present invention is for solving the above-described conventional problems, and is a hollow body that can be easily manufactured, a sheet body that can be manufactured at a low manufacturing cost and in a small space, and the manufacturing thereof. For the purpose of providing a way!
  • the hollow body of the present invention has a plurality of sheets opposed in the vertical direction, and the plurality of sheets are bonded via a bonding layer formed between the sheets, and are opposed in the vertical direction.
  • a hollow region forming sheet having a width smaller than that of the sheet is interposed between the sheets, and a bonding region in which the sheet opposing the vertical direction on the side of the hollow portion forming sheet is formed by the bonding layer.
  • a hollow portion is formed between the hollow portion forming sheet and the sheet.
  • the hollow part forming sheet is one sheet, and one surface of the hollow part forming sheet is bonded to the sheet via the bonding layer, and the other surface of the hollow part forming sheet is It can comprise as the said hollow part being formed between the said sheets.
  • it can be configured as having two hollow portion forming sheets opposed in the vertical direction, and the hollow portion is formed between the two hollow portion forming sheets.
  • a plurality of joining regions formed by a joining layer that joins the hollow part forming sheet and the sheet facing each other in the vertical direction may be formed on the side of the hollow part.
  • the sheet includes a plurality of sheets having different width dimensions, and the sheet bodies having different width dimensions can be joined together via the joining region.
  • the hollow part forming sheet having the larger width dimension is joined to the sheet in the joining region. it can.
  • a plurality of the hollow portion forming sheets are positioned at intervals in the width direction, It can be configured that the hollow portions are formed at intervals in the width direction.
  • the sheet body of the present invention includes a lower layer sheet and an upper layer sheet bonded onto the lower layer sheet, and the upper layer sheet includes a first sheet half body and a second sheet half body. Are arranged in parallel in the width direction, and the inner end region of the first sheet half and the inner end region of the second sheet half are formed of the lower sheet. Joined in a state of being bent upward with respect to the upper surface, and this joint is formed continuously from the front end to the rear end,
  • the lower layer sheet is formed of a sheet laminate in which a plurality of sheets are laminated.
  • the method for producing a hollow body of the present invention is characterized by having the following steps.
  • Another sheet is stacked on the hollow portion forming sheet, and the sheet and the other sheet are bonded to each other through the bonding region formed by the bonding layer on the side of the hollow portion forming sheet. And a step of forming a hollow portion between the hollow portion forming sheet and the sheet.
  • the hollow portion forming sheet is formed as a single sheet, and one surface of the hollow portion sheet is joined to the sheet via the joining layer,
  • the hollow portion can be formed between the other surface of the hollow portion forming sheet and the sheet.
  • the hollow part forming sheet is formed by two sheets facing in the vertical direction, and one of the hollow part sheets is joined to the sheet via the joining layer,
  • the other sheet is overlaid on the other hollow part forming sheet, and the sheet and the other part are disposed on the side of the two hollow part forming sheets via the bonding layer.
  • a sheet can be joined and a hollow part can be formed between the two hollow part forming sheets.
  • step (d) forming another bonding layer on or under the sheet laminate formed by the sheet and the hollow portion forming sheet, and laminating the sheets so as to contact the other bonding layer, Forming another joining region formed of the joining layer on the side of the sheet laminate, and joining the sheet laminate and the sheet via the other joining region;
  • the sheet in the step (a) and the sheet in the step (d) may have different width dimensions.
  • step (b) two hollow portion forming sheets having different width dimensions are stacked on the bonding layer, and in the step (c), the hollow portion forming sheet having a larger width dimension is stacked. However, it can be configured to be joined to the sheet in the joining region.
  • the plurality of hollow portion forming sheets are stacked on the bonding layer with a gap in the width direction, and in the step (c), a gap is provided in the width direction.
  • a plurality of the hollow portions positioned at the same position can be formed.
  • the sheet body manufacturing method of the present invention is characterized by having the following steps.
  • Another sheet is stacked on the hollow part forming sheet, and the sheet and the other sheet are joined to each other through the joining region formed by the joining layer on the side of the hollow part forming sheet. Forming a hollow part between the hollow part forming sheet and the sheet;
  • the method for producing a sheet of the present invention is characterized by having the following steps.
  • a folding sheet having a folding line that bisects the width direction along the longitudinal direction and with both end portions facing each other in the vertical direction and an open end formed on the side is overlapped.
  • the hollow body of the present invention a plurality of sheets are stacked and each sheet is bonded to each other by a bonding layer, so that the hollow body can be easily formed.
  • the hollow body can be manufactured without carrying out severe accuracy control, it can be manufactured easily as a whole.
  • a sheet body having a large width dimension can be obtained by simply laminating a plurality of sheets or the folded sheet and opening the sheet, so that the manufacturing cost is low. In addition, the manufacturing space can be easily secured.
  • FIG. 1 is a perspective view showing a first embodiment of the hollow body of the present invention
  • FIG. 2 shows the hollow body shown in FIG.
  • the hollow body 1 has a width dimension having a predetermined interval in the illustrated XI-X2 direction, and is formed by continuously extending in the illustrated Y1-Y2 direction. ing.
  • the Y1-Y2 direction shown in the drawing is the longitudinal direction
  • the XI-X2 direction shown is the width direction.
  • the hollow body 1 includes a hollow portion 2 and joint portions 3a and 3b.
  • the hollow portion 2 extends in the longitudinal direction of the hollow body 1, and the front end 2a is formed as an open end having an opening 4a.
  • the hollow portion 2 is formed as an open end having a rear end 2b having an opening 4b.
  • the joint portions 3a and 3b are respectively formed on both sides of the hollow portion 2, and have a predetermined width dimension and extend in the longitudinal direction.
  • the hollow body 1 includes a first sheet 5 positioned outside the upper side in the figure (Z1 direction side in the figure) and a lower side (Z2 in the figure) of the first sheet 5.
  • the second sheet 6 located outside the direction side), and two sheets interposed between the first sheet 5 and the second sheet 6
  • the hollow portion forming sheets 7 and 8 are provided.
  • the two hollow portion forming sheets 7 and 8 are formed in a positional relationship in which they are opposed to each other in the vertical direction.
  • the hollow portion forming sheet 7 is positioned on the first sheet 5 side, and the opposed portions are arranged so that the hollow portion forming sheet 8 is positioned on the second sheet 6 side. Has been.
  • an intermediate sheet 9 is formed between the first sheet 5 and the hollow portion forming sheet 7.
  • an intermediate sheet 10 is also formed between the second sheet 6 and the hollow part forming sheet 8, and the hollow body 1 shown in FIG. It is formed as a structured.
  • the hollow portion 2 is formed between the hollow portion forming sheets 7 and 8.
  • the width dimension W 2 of the hollow part forming sheet 8 is larger than the width dimension W 1 of the hollow part forming sheet 7.
  • the width dimension W3 of the intermediate sheet 9 is formed larger than the width dimension W2 of the hollow portion forming sheet 8. Further, the width dimension W4 of the intermediate sheets 10 is formed larger than the width dimension W3 of the intermediate sheet 9.
  • the width dimension W1 of the hollow portion forming sheet 7 is configured such that Wl ⁇ W2 W3 W4! RU
  • the hollow portion forming sheet 8 is positioned below the hollow portion forming sheet 7, and the hollow portion forming sheet 7 is sandwiched between the hollow portion forming sheet 8 and the hollow portion forming sheet 7.
  • the intermediate sheet 9 is located, and the intermediate sheet 10 is formed on the lower side of the intermediate sheet 9 with the hollow portion forming sheet 7 and the hollow portion forming sheet 8 interposed therebetween. Accordingly, when the width dimensions W1 to W4 of the hollow portion forming sheet 7, the hollow portion forming sheet 8, the intermediate sheet 9, and the intermediate sheet 10 are arranged in order from the largest, the vertical direction (Z1 in the drawing) — Z2 direction), the formation positions of each other are configured to overlap each other. As shown in FIG.
  • the hollow portion forming sheet 7 is arranged so as to overlap the hollow portion forming sheet 8 so that the lower surface 7b faces the upper surface 8a of the hollow portion forming sheet 8. ing.
  • the first bonding layer 11 is formed on the upper surface 8a of the hollow portion forming sheet 8 so that the lateral force of the hollow portion forming sheet 7 is also applied to the upper surface 7a of the hollow portion forming sheet 7! RU
  • the first bonding layer 11 is not formed in a region 8al overlapping the hollow portion forming sheet 7 out of the upper surface 8a of the hollow portion forming sheet 8. Therefore, in the region 8al, the hollow portion forming sheets 7 and 8 are not joined, and the hollow portion 2 is formed between the hollow portion forming sheet 7 and the hollow portion forming sheet 8. . That is, as shown in FIG. 2, the hollow part 2 is located between the hollow part forming sheet 7 and the intermediate sheet 10 and between the hollow part forming sheet 8 and the intermediate sheet 9. It is formed as follows.
  • the first bonding layer 11 is in contact with the lower surface 9 b of the intermediate sheet 9. Therefore, the hollow portion forming sheet 7 and the intermediate sheet 9 are bonded via the first bonding layer 11, and the hollow portion forming sheet 8 and the intermediate sheet 9 are bonded via the first bonding layer 11. Are joined.
  • the first bonding layer 11 is formed with the same width dimension as the width dimension W2 of the hollow portion forming sheet 8. As described above, the width dimension W2 of the hollow portion forming sheet 8 is smaller than the width dimension W3 of the intermediate sheet 9. Therefore, the first bonding layer 11 does not face the side portion of the lower surface 9b of the intermediate sheet 9.
  • the lower surface 9b of the intermediate sheet 9 has a side surface of the hollow portion forming sheet 8 from a side of the first bonding layer 11, and a lower surface 8b of the hollow portion forming sheet 8.
  • the second bonding layer 12 is formed.
  • the second bonding layer 12 is formed so as to be in contact with the upper surface 10a of the intermediate sheet 10. Therefore, the hollow portion forming sheet 8 and the intermediate sheet 10 are bonded via the second bonding layer 12, and the intermediate sheet 9 and the intermediate sheet 10 are bonded via the second bonding layer 12.
  • a joining region 22 is formed at a portion where the intermediate sheet 9 and the intermediate sheet 10 are joined via the second joining layer 12.
  • the second bonding layer 12 is formed to be the same as the width dimension W3 of the intermediate sheet 9. As before Furthermore, the width dimension W3 of the intermediate sheet 9 is formed smaller than the width dimension W4 of the intermediate sheet 10. Therefore, the second bonding layer 12 does not face the side portion of the upper surface 10a of the intermediate sheet 10.
  • the lateral force of the second bonding layer 12 is also applied to the side of the intermediate sheet 9 and the upper surface 9 a of the intermediate sheet 9.
  • a bonding layer 13 is formed.
  • the third bonding layer 13 is formed so as to be in contact with the lower surface 5b of the first sheet 5. Therefore, the intermediate sheet 9 and the first sheet 5 are bonded via the third bonding layer 13, and the intermediate sheet 10 and the first sheet 5 are bonded to the third bonding layer 13. Are joined through.
  • a joining region 23 is formed at a portion where the intermediate sheet 10 and the first sheet 5 are joined via the third joining layer 13. In the embodiment shown in FIG.
  • the width dimension of the third bonding layer 13 is formed to be the same as the width dimension W4 of the intermediate sheet 10. As shown in FIG. 2, the width dimension W 4 of the intermediate sheet 10 is formed smaller than the width dimension W 5 of the first sheet 5. Therefore, the third bonding layer 13 is opposed to the side portion of the lower surface b of the first sheet 5.
  • the lower surface 5b of the first sheet 5 extends from the side of the third bonding layer 13 to the side of the intermediate sheet 10 and the lower surface 10b of the intermediate sheet 10.
  • a fourth bonding layer 14 is formed.
  • the fourth bonding layer 14 is formed so as to be in contact with the upper surface 6 a of the second sheet 6. Therefore, the intermediate sheet 10 and the second sheet 6 are bonded together via the fourth bonding layer 14, and the first sheet 5 and the second sheet 6 are bonded to the fourth bonding layer 14.
  • a bonding region 24 is formed at a portion where the first sheet 5 and the second sheet 6 are bonded via the fourth bonding layer 14. In the embodiment shown in FIG.
  • the width dimension of the fourth bonding layer 14 is formed to be the same as the width dimension W6 of the second sheet 6. As shown in FIG. 2, the width dimension W 6 of the second sheet 6 is formed to be the same as the width dimension W 5 of the first sheet 5. Therefore, the fourth bonding layer 14 faces the side portion of the first sheet 5, the side portion of the lower surface 5 b of the first sheet 5, and the second sheet 6. The side portions of the upper surface 6a are joined via the fourth joining layer 14. [0044]
  • the joint regions 21, 22, 23, 24 shown in FIG. 2 constitute the joints 3a, 3b shown in FIG.
  • the hollow body 1 shown in FIG. 2 the hollow part forming sheet 7, the hollow part forming sheet 8, the intermediate sheet 9, the intermediate sheet 10, the first sheet 5, and the second sheet 6
  • the force required to form a hollow body with a method such as an inflation method using a resin material, etc. and the inflation method is performed by blowing air into the resin to swell, for example.
  • the hollow body 1 can be manufactured by the die extrusion method as will be described later, it can be manufactured without requiring a large facility or space.
  • the hollow body 1 can be manufactured without severe precision control, so that the hollow body 1 can be manufactured easily as a whole. be able to.
  • the width dimension W2 of the hollow part forming sheet 8 is formed to be larger than the width dimension W1 of the hollow part forming sheet 7. Further, the width dimension W3 of the intermediate sheet 9 is formed larger than the width dimension W2 of the hollow portion forming sheet 8. Further, the width dimension W4 of the intermediate sheet 10 is formed larger than the width dimension W3 of the intermediate sheet 9. The width dimension W5 of the first sheet and the width dimension W6 of the second sheet 6 are both formed larger than the width dimension W4 of the intermediate sheet 10.
  • the width dimensions W1 to W4 are arranged in the order of the greater force with respect to the hollow portion forming sheet 7, the hollow portion forming sheet 8, the intermediate sheet 9, and the intermediate sheet 10,
  • the formation positions of each other are configured so as to overlap each other in the downward direction (Z1— ⁇ 2 direction in the figure).
  • the joining region 21 in which the hollow part forming sheet 8 and the intermediate sheet 9 are joined via the first joining layer 11 is formed on the side of the hollow part 2. ing . Further, a joining region 22 is formed on the outside of the joining region 21 in which the intermediate sheet 9 and the intermediate sheet 10 are joined via the second joining layer 12. Further, a joining region 23 in which the intermediate sheet 10 and the first sheet are joined via the third joining layer 13 is formed outside the joining region 22. Further, a joining region 24 is formed outside the joining region 23 in which the first sheet 5 and the second sheet 6 are joined via the fourth joining layer.
  • the strength of the hollow portion 2 is greatly improved. It becomes possible.
  • the first sheet 5 and the second sheet 6 are formed on, for example, a PE woven fabric woven from a polyethylene material (PE) in a string shape or a thin sheet shape, or the surface of the PE woven fabric.
  • PE polyethylene material
  • PP Polypropylene
  • PE film Polypropylene
  • PP woven fabric or PP film woven with string or thin polypropylene (PP) material uniaxially stretched film! /!
  • Is biaxially stretched film Can be used), or metal foil such as aluminum foil or copper foil, or polyester (PET) film, or the surface of a substrate made of PP or PET with aluminum vapor deposition or copper deposition, or PP It can be made of non-woven fabric, PE non-woven fabric, PET non-woven fabric, nylon non-woven fabric, or paper.
  • the intermediate sheets 9 and 10 are, for example, a PE woven fabric made of a string-like, thin, or sheet-like polyethylene (PE) material, or a surface of the PE woven fabric covered with polypropylene (PP).
  • PE polyethylene
  • PP polypropylene
  • PP woven fabric or PP film one uniaxially stretched film or biaxially stretched film can be used
  • PP non-woven fabric woven with PE film
  • string-like or thin sheet-like polypropylene (PP) material PE nonwoven fabric, PET nonwoven fabric, nylon nonwoven fabric, or paper material.
  • the hollow portion forming sheets 7 and 8 can be made of, for example, low density PE.
  • an additive is mixed depending on the application, such as mixing a fender with the hollow portion forming sheets 7 and 8. I'll do it.
  • the first bonding layer 11, the second bonding layer 12, the third bonding layer 13, and the fourth bonding layer are preferably composed of low-density PE (LDPE) having a relatively low melting temperature because it can exhibit an excellent function as a bonding layer.
  • LDPE low-density PE
  • FIG. 3 is a cross-sectional view schematically showing a cut cross section (equivalent to the cut cross section taken along line II-II shown in Fig. 1) of the hollow body of the second embodiment of the present invention in the width direction.
  • Figure 2 is equivalent to Figure 2.
  • a perspective view of the hollow body 101 shown in FIG. 3 is the same as FIG.
  • the hollow body 101 shown in FIG. 3 has the same components as the hollow body 1 shown in FIGS. Therefore, among the components of the hollow body 101 shown in FIG. 3, the same components as those of the hollow body 1 shown in FIG. 1 and FIG. Omitted.
  • the hollow body 101 shown in FIG. 3 is different from the hollow body 1 shown in FIG. 2 in that the width dimension W3 of the intermediate sheet 9 and the width dimension W4 of the intermediate sheet 10 are different as shown in FIG. Are the same size.
  • the lower surface 9b of the intermediate sheet 9 extends from the side of the first bonding layer 11 to the side of the hollow portion forming sheet 8 and the lower surface 8b of the hollow portion forming sheet 8.
  • a second bonding layer 12 is formed.
  • the second bonding layer 12 is formed so as to be in contact with the upper surface 10a of the intermediate sheet 10. Therefore, the hollow portion forming sheet 8 and the intermediate sheet 10 are bonded via the second bonding layer 12, and the intermediate sheet 9 and the intermediate sheet 10 are bonded via the second bonding layer 12.
  • a joining region 22 is formed in a portion where the intermediate sheet 9 and the intermediate sheet 10 are joined via the second joining layer 12.
  • the side of the intermediate sheet 9, the side of the intermediate sheet 10, and A fourth bonding layer 14 is formed over the lower surface 10b of the intermediate sheet 10.
  • the fourth bonding layer 14 is formed so as to contact the upper surface 6 a of the second sheet 6. Therefore, the intermediate sheet 10 and the second sheet 6 are bonded via the fourth bonding layer 14, and the first sheet 5 and the second sheet 6 are bonded to the fourth bonding layer 14.
  • a bonding region 24 is formed at a portion where the first sheet 5 and the second sheet 6 are bonded via the fourth bonding layer 14.
  • a fifth bonding layer 15 is formed between the intermediate sheet 9 and the first sheet 5, and the fifth bonding layer 15 The intermediate sheet 9 and the first sheet 5 are joined via the gap.
  • the joint regions 21, 22, 24 shown in FIG. 3 constitute the joints 3a, 3b shown in FIG.
  • the hollow body 101 shown in Fig. 3 can also be manufactured without requiring large equipment and space, and the hollow body 101 can be manufactured without severe precision control. Therefore, it can manufacture easily as a whole.
  • the fifth bonding layer 15 is composed of, for example, a relatively low melting temperature and low density PE (LDPE) because it can exhibit an excellent function as a bonding layer.
  • LDPE low density PE
  • FIG. 4 is a cross-sectional view schematically showing a cut cross section (equivalent to the cut cross section taken along line II-II shown in Fig. 1) of the hollow body of the third embodiment of the present invention in the width direction.
  • Figure 2 is equivalent to Figure 2.
  • the perspective view of the hollow body 201 shown in FIG. 4 is the same as FIG.
  • the hollow body 201 shown in FIG. 4 has the same components as the hollow body 1 shown in FIGS. Therefore, among the components of the hollow body 201 shown in FIG. 4, the same components as those of the hollow body 1 shown in FIGS. Omitted.
  • the hollow body 201 includes a first sheet 5 positioned on the outer side of the upper side in the figure (Z1 direction side in the figure), and a lower side of the first sheet 5 (in the Z2 direction in the figure).
  • a second sheet 6 located on the outside of the first sheet 5 and two hollow portion forming sheets 207 and 208 interposed between the first sheet 5 and the second sheet 6.
  • the two hollow portion forming sheets 207 and 208 are formed in a positional relationship in which they are opposed to each other in the vertical direction.
  • the hollow portion forming sheet 207 is located on the first sheet 5 side, and the hollow portion forming sheet 208 is disposed so as to face the second sheet 6 side.
  • the hollow body 201 shown in FIG. 4 unlike the hollow body 1 shown in FIG. 2, an intermediate sheet 9 is formed between the first sheet 5 and the hollow portion forming sheet 7. There is also no intermediate sheet 10 formed between the second sheet 6 and the hollow portion forming sheet 8. Yes. Therefore, the hollow body 201 shown in FIG. 4 is formed as a structure in which a total of four sheet bodies are laminated.
  • a hollow portion 2 is formed between the hollow portion forming sheets 207 and 208 in the hollow body 201. That is, as shown in FIG. 4, the hollow portion 2 is formed between the hollow portion forming sheet 207 and the second sheet 6, and between the hollow portion forming sheet 208 and the first sheet 5. It is formed to be located.
  • the width dimension W7 of the hollow part forming sheet 207 and the width dimension W8 of the hollow part forming sheet 208 are Are formed with the same width dimension.
  • the width dimension W5 of the first sheet and the width dimension W2 of the second sheet 6 are also formed with the same width dimension. Then, the width dimension W5 of the first sheet 5 and the width of the second sheet 6 are larger than the width dimension W7 of the hollow section formation sheet 207 and the width dimension W8 of the hollow section formation sheet 208. Dimension W6 is larger
  • the hollow portion forming sheet 207 is formed in a two-layer structure of a base material layer 207a and a bonding layer 207b.
  • the hollow portion forming sheet 208 is also formed in a two-layer structure of a base material layer 208a and a bonding layer 208b.
  • the bonding layers 207b and 208b are opposed to each other.
  • a sixth bonding layer 30 is formed between the hollow portion forming sheet 207 and the first sheet 5, and the hollow portion forming sheet 7 and the hollow portion forming sheet 7 are interposed via a central region of the sixth bonding layer 30.
  • the first sheet 5 is joined.
  • a fourth bonding layer 14 is formed over the lower surface 208c.
  • the fourth bonding layer 14 is formed so as to be in contact with the upper surface 6a of the second sheet 6. Therefore, the hollow portion forming sheet 8 and the second sheet 6 are bonded via the fourth bonding layer 14, and the sixth bonding layer 30 and the second sheet 6 are bonded to the fourth bonding layer 14. Joined through layer 14. Therefore, the first sheet 5 and the second sheet 6 are connected to the fourth bonding layer 14 and the fourth bonding layer 14. And the sixth bonding layer 30.
  • a bonding region 24 is formed at a portion where the sixth bonding layer 30 and the second sheet 6 are bonded via the fourth bonding layer 14.
  • the joint region 24 shown in FIG. 4 constitutes the joints 3a and 3b shown in FIG.
  • the hollow body 201 shown in FIG. 4 can be manufactured without requiring large equipment and space, and the hollow body 201 can be manufactured without severe precision control. Manufacturing as a whole can be easily performed.
  • the bonding layers 207b and 208b are formed on the hollow portion forming sheets 207 and 208, respectively, so that the bonding layers 207b and 208b are positioned so as to face each other. is doing. Therefore, a bag can be easily formed by joining the front end 2a and the rear end 2b of the hollow portion 2 with the joining layers 207b and 208b. Alternatively, by cutting in the width direction (X1-X2 direction shown in FIG. 1) in the middle of the longitudinal direction (Y1-Y2 direction shown in FIG. 1), the bonding layers 207b and 208b are bonded at the cut end face. The bag body can be easily formed.
  • the base material layers 207a and 208a constituting the hollow portion forming sheets 207 and 208 can be formed of, for example, a PP film, and can be formed of, for example, a biaxially stretched PP film (OPP).
  • the bonding layers 207b and 208b can be formed of low density PE.
  • the sixth bonding layer 30 is composed of, for example, a relatively low melting temperature and low density PE (LDPE) because it can exhibit an excellent function as a bonding layer.
  • LDPE low density PE
  • FIG. 5 is a cross-sectional view schematically showing a cut cross section (equivalent to the cut cross section taken along line II-II shown in FIG. 1) of the hollow body of the fourth embodiment of the present invention in the width direction.
  • Figure 2 is equivalent to Figure 2.
  • the perspective view of the hollow body 301 shown in FIG. 5 is the same as FIG.
  • the hollow body 301 shown in FIG. 5 has the same components as the hollow body 1 shown in FIGS. 1 and 2. Therefore, among the components of the hollow body 301 shown in FIG.
  • the same components as those of the hollow body 1 shown in FIGS. 1 and 2 are denoted by the same reference numerals as those of the hollow body 1, and detailed description thereof is omitted.
  • the hollow body 301 includes a first sheet 5 positioned outside the upper side in the figure (Z1 direction side in the figure), and a lower side of the first sheet 5 (in the Z2 direction in the figure).
  • a second sheet 6 positioned on the outer side of the first sheet 5, and one hollow portion forming sheet 7 interposed between the first sheet 5 and the second sheet 6.
  • the hollow body 301 shown in FIG. 5 is formed as a structure in which a total of five sheet bodies are laminated.
  • the width dimension W3 of the intermediate sheet 9 and the width dimension W4 of the intermediate sheet 10 are the same width dimension. It is formed by. Then, the force of the width dimension W3 of the intermediate sheet 9 and the width dimension W4 of the intermediate sheet 10 are formed larger than the width dimension W1 of the hollow portion forming sheet 7.
  • width dimension W5 of the first sheet and the width dimension W2 of the second sheet 6 are formed to have the same width dimension.
  • the width dimension W3 of the intermediate sheet 9, the width dimension W4 of the intermediate sheet 10, and the width dimension W5 of the first sheet 5 and the width dimension W6 of the second sheet 6 are defined. Each is formed with the same width dimension.
  • a seventh bonding layer 31 is formed between the first sheet 5 and the intermediate sheet 9, and the first bonding layer 31 is interposed through the seventh bonding layer 31.
  • the sheet 5 and the intermediate sheet 9 are joined.
  • an eighth bonding layer 32 is formed between the second sheet 6 and the intermediate sheet 10, and the second sheet 6 and the intermediate sheet 10 are interposed via the eighth bonding layer 32. And are joined.
  • a ninth bonding layer 33 is formed on the lower side (Z2 side in the drawing) of the intermediate sheet 9 in contact with the lower surface 9b of the intermediate sheet.
  • the hollow portion forming sheet 7 and the ninth joining layer 33 are formed so as to face each other in the up-down direction (Z1-Z2 direction in the drawing).
  • the hollow portion forming sheet 7 and the ninth bonding layer 33 are not bonded, and the hollow portion 2 is interposed between the hollow portion forming sheet 7 and the ninth bonding layer 33. Is formed. That is, as shown in FIG. 5, the hollow portion 2 is formed so as to be positioned between the hollow portion forming sheet 7 and the intermediate sheet 9.
  • the fourth bonding layer 14 is formed on the lower surface 33b of the ninth bonding layer 33 so that the lateral force of the hollow portion forming sheet 7 is also applied to the lower surface 7b of the hollow portion forming sheet 7. ing .
  • the fourth bonding layer 14 is formed so as to be in contact with the upper surface 10 a of the intermediate sheet 10. Therefore, the hollow portion forming sheet 7 and the intermediate sheet 10 are bonded via the fourth bonding layer 14, and the intermediate sheet 10 and the ninth bonding layer 33 are bonded via the fourth bonding layer 14. Are joined.
  • a bonding region 24 is formed in a portion where the first sheet 5 and the second sheet 6 are bonded via the fourth bonding layer 14.
  • the joint region 24 shown in FIG. 5 constitutes the joints 3a and 3b shown in FIG.
  • the hollow body 301 shown in FIG. 5 can be manufactured without requiring large equipment and space, and the hollow body 301 can be manufactured without severe precision control. Manufacturing as a whole can be easily performed.
  • the seventh bonding layer 31, the eighth bonding layer 32, and the ninth bonding layer 33 are made of, for example, a relatively low melting point low-density PE (LDPE), an excellent function as a bonding layer Is preferable.
  • LDPE relatively low melting point low-density PE
  • FIG. 6 is a perspective view showing a fifth embodiment of the hollow body of the present invention.
  • a hollow body 401 shown in FIG. 6 has the same components as the hollow body 1 shown in FIG. Accordingly, among the constituent elements of the hollow body 401 shown in FIG. 6, the same constituent elements as those of the hollow body 1 shown in FIG.
  • the hollow body 401 includes hollow portions 402A and 402B in the force width direction (illustrated XI
  • the hollow portion 402A is
  • the hollow body 401 extends in the longitudinal direction, is formed as an open end having an opening 404Aa at the front end, and is formed as an open end having an opening 404Ab at the rear end. .
  • the hollow portion 402B extends in the longitudinal direction of the hollow body 101, is formed as an open end having an opening 404Ba at the front end, and has an opening 404Bb at the rear end. Formed as an open end.
  • a joint 3c is formed between the two hollow portions 402A and 402B.
  • the joint 3c has a predetermined width dimension and is formed to extend in the longitudinal direction (Y1-Y2 direction in the drawing).
  • FIG. 7 is a cross-sectional view schematically showing a cut cross section of the hollow body shown in FIG. 6 taken along line VII-VII.
  • the hollow body 401 shown in FIG. 7 has the same components as the hollow body 1 shown in FIGS. Therefore, among the components of the hollow body 401 shown in FIG. 7, the same components as those of the hollow body 1 shown in FIGS. Omitted.
  • the hollow body 401 includes a first sheet 5 positioned on the outer side of the upper side in the figure (Z1 direction side in the figure), and a lower side (in the Z2 direction in the figure) of the first sheet 5 A second sheet 6 located on the outer side, and two hollow portion forming sheets 407A and 407B interposed between the first sheet 5 and the second sheet 6 .
  • the hollow portion forming sheets 407A and 407B are arranged side by side at a predetermined interval in the width direction.
  • an intermediate sheet 9 is formed between the hollow portion forming sheets 407 A and 407 B and the first sheet 5.
  • An intermediate sheet 10 is formed between the hollow portion forming sheets 407 A and 407 B and the second sheet 6.
  • the width dimension W3 of the intermediate sheet 9 and the width dimension W4 of the intermediate sheet 10 are formed with the same width dimension.
  • the width dimension W5 of the first sheet and the width dimension W2 of the second sheet 6 are formed to have the same width dimension.
  • the width dimension W3 of the intermediate sheet 9, the width dimension W4 of the intermediate sheet 10, and the width dimension W5 of the first sheet 5 and the width dimension W6 of the second sheet 6 are defined. Each is formed with the same width dimension.
  • a seventh bonding layer 31 is formed between the first sheet 5 and the intermediate sheet 9.
  • the first sheet 5 and the intermediate sheet 9 are bonded to each other through the seventh bonding layer 31.
  • an eighth bonding layer 32 is formed between the second sheet 6 and the intermediate sheet 10, and the second sheet 6 and the intermediate sheet are interposed through the eighth bonding layer 32.
  • 10 is joined
  • the lower side (Z2 side in the figure) of the intermediate sheet 9 is in contact with the lower surface 9b of the intermediate sheet. 9
  • the junction layer 33 is formed. As shown in FIG.
  • the hollow portion forming sheets 407A and 407B and the ninth bonding layer 33 are formed so as to face each other in the vertical direction (Zl-Z2 direction in the drawing).
  • the hollow portion forming sheets 407A and 407B and the ninth bonding layer 33 are not bonded, and the hollow portion forming sheets 407A and 407B and the ninth bonding layer 33 are not bonded.
  • the hollow portions 402A and 402B are formed in the same. That is, as shown in FIG. 7, the hollow portion 402A is formed so as to be positioned between the hollow portion forming sheet 407A and the intermediate sheet 9, and the hollow portion 402B is formed with the hollow portion forming sheet 407B. It is formed so as to be positioned between the intermediate sheet 9.
  • the lower surface 33b of the ninth bonding layer 33 is formed from the side of the hollow portion forming sheet 407A to the lower surface 407Ab and from the side of the hollow portion forming sheet 407B to the lower surface 407Bb.
  • the fourth bonding layer 14 is formed.
  • the fourth bonding layer 14 is also formed between the hollow portion forming sheets 407A and 407B, and the lateral force of the hollow portion forming sheets 407A and 407B is also applied to the lower surface 33b of the ninth bonding layer 33. Has been.
  • the fourth bonding layer 14 is formed in contact with the upper surface 10a of the intermediate sheet 10. Therefore, the hollow portion forming sheets 407A and 407B and the intermediate sheet 10 are bonded via the fourth bonding layer 14, and the intermediate sheet 10 and the ninth bonding layer 33 connect the fourth bonding layer 14. Are joined through. As shown in FIG. 7, a bonding region 24 is formed at a portion where the first sheet 5 and the second sheet 6 are bonded via the fourth bonding layer 14.
  • the joining region 24 shown in FIG. 7 constitutes the joining parts 3a, 3b, and 3c shown in FIG.
  • the hollow body 401 shown in Fig. 7 can also be manufactured without requiring large equipment and space, and the hollow body 401 can be manufactured without severe precision control. Therefore, it can manufacture easily as a whole.
  • the hollow portions 402A and 402B have a predetermined interval in the width direction.
  • the hollow body 401 when used as a hose, different objects can be transported by the hollow portions 402A and 402B. Further, when used as a bag body, it is possible to pack different packages to be packed in the hollow portions 402A and 402B.
  • the hollow portion forming sheets 407A and 407B can be made of, for example, low density PE.
  • an antibacterial agent is mixed with the hollow portion forming sheets 7 and 8, and an additive is mixed depending on the application. Monkey.
  • FIG. 8 is a perspective view showing a sheet body of the present invention.
  • a sheet body 601 shown in FIG. 8 includes a lower layer sheet 602 and an upper layer sheet 603 formed on the upper side (Z1 direction side in the drawing) of the lower layer sheet 602.
  • the planar shape viewed from above the lower layer sheet 602 is formed into a rectangle extending in the longitudinal direction (Y1—Y2 direction in the drawing) of the sheet body 601.
  • the upper layer sheet 603 is also formed in a rectangular shape extending in the longitudinal direction of the sheet body 601.
  • the upper layer sheet 603 includes a first sheet half 604 and a second sheet half 605.
  • the first sheet half 204 and the second sheet half 205 are joined to the upper surface 602a of the lower layer sheet 602 side by side in the width direction (XI-X2 direction in the drawing) of the sheet body 601.
  • the first sheet half 604 has an inner end 604c, an outer end 604d, a front end 604h, and a rear end 604i.
  • the second sheet half 605 has an outer end 605c, an inner end 605d, a front end 605h, and a rear end 605i.
  • the front end 602h of the lower layer sheet 602, the front end 604h of the first sheet half 604, and the front end 605h of the second sheet half 605 are in the vertical direction (Z1 in the figure). Z2 direction).
  • the rear end 602i of the lower layer sheet 602, the rear end 604i of the first sheet half body 604, and the rear end 6 05i of the second sheet half body 605 are formed to face each other in the vertical direction.
  • one side end 602c of the lower layer sheet 602 and the outer end 205c of the second sheet half 605 are formed to face each other in the vertical direction.
  • the outer end 602d of the lower layer sheet 602 and the outer end 604d of the first sheet half 604 are formed so as to face each other in the vertical direction.
  • an inner end region 604e formed on the inner end 604c side of the first sheet half 604 and an inner end 605d side of the second sheet half 605 are formed.
  • the inner end region 605e is valley-folded by folding lines 610 and 611 and is bent upward with respect to the upper surface 602a of the lower layer sheet 6002.
  • the inner end region 604e of the first sheet half 604 and the inner end region 605e of the second sheet half 605 are joined to form a joined portion 603a.
  • the joint 603a is formed continuously from the front end 601a to the rear end 601b of the sheet body 601.
  • the lower layer sheet 602 is configured as a sheet stack body in which a plurality of sheets are laminated.
  • the laminated structure of the sheet laminate constituting the lower layer sheet 602 is configured as follows. That is, the hollow portions 2 of the hollow bodies 1, 101, 201, 301 shown in FIGS. 2 to 5 are cut along a cutting line C—C shown in FIGS. 2 to 5, and the cut end faces C1 are respectively cut.
  • the cutting end face C2 is opened downward (each Z2 direction), and is opened upward (each Z1 direction shown), the cutting line CC line is located above the cutting line CC line.
  • the hollow portion forming sheets 7, 207 and the intermediate sheet 9 constitute the sheet laminate constituting the lower layer sheet half 602B.
  • the hollow portion forming sheets 8 and 208 and the intermediate sheet 10 positioned on the lower side of the cutting line C-C form the sheet laminate constituting the lower layer sheet half 602A. Become.
  • the first sheet 5 of the hollow bodies 1, 101, 201, 301 shown in FIGS. 2 to 5 constitutes the upper layer sheet 603 shown in FIG.
  • the second sheet half 605 is constituted, and the second sheet 6 constitutes the first sheet half 604 constituting the upper sheet 603 shown in FIG.
  • the lower layer sheet 602 shown in FIG. 8 may be composed of sheet laminates 504 and 505 shown in FIG.
  • FIG. 9 shows a cut step cross-section obtained by cutting the sheet laminate 500 in the width direction.
  • the sheet laminate 500 is divided into the first lower-layer sheet half 602A shown in FIG.
  • the inner side forces of the second lower sheet half 602B are schematically illustrated by being folded so as to face each other.
  • the sheet laminate 500 has the same components as the hollow body 1 shown in FIGS. Therefore, among the constituent elements of the sheet laminate 500 shown in FIG. 9, the same constituent elements as those of the hollow body 1 shown in FIGS. Description is omitted.
  • the sheet laminate 500 includes a first sheet 5 positioned on the outer side of the upper side in the figure (Z1 direction side in the figure) and a lower side of the first sheet 5 (Z2 in the figure).
  • a second sheet 6 positioned on the outer side of the direction side), and one folded sheet 503 interposed between the first sheet 5 and the second sheet 6.
  • the folding sheet 503 is bent at the center portion that bisects the width direction, and both side end portions 503c and 503d are bent so as to face each other in the vertical direction (Z1-Z2 direction in the drawing).
  • an intermediate sheet 9 is formed between the bent sheet 503 and the first sheet 5 via a seventh bonding layer 31. Further, an intermediate sheet 10 is formed between the bent sheet 503 and the second sheet 6 via an eighth bonding layer 32.
  • the folded sheet 503 is formed on the tenth bonding layer 34 in a state where the surface of the bent lower surface 503b of the bent sheet 503 is in contact with the upper surface 34a of the tenth bonding layer 34. ing. Therefore, the folded lower surface 5 03b of the folded sheet 503 is connected to the intermediate sheet 10 via the tenth bonding layer 34.
  • the fourth bonding layer 14 is formed on the upper surface 34a of the tenth bonding layer 34 so that the lateral force of the bent sheet 503 is also applied to the surface of the bent upper surface 503a.
  • the fourth bonding layer 14 is formed so as to be in contact with the lower surface 9b of the intermediate sheet 9. . Therefore, the folded upper surface 503a of the folded sheet 503 and the intermediate sheet 9 are bonded via the fourth bonding layer 14, and the intermediate sheet 9, the intermediate sheet 10, and the force The fourth bonding layer 14 and the Bonded via the tenth bonding layer 34.
  • a width dimension W7 of the folding sheet 503 is formed to be smaller than a width dimension W3 of the intermediate sheet 9, and the side sheet region 9bl of the lower surface 9b of the intermediate sheet 9 Sheet 503 is not facing. Further, the fourth bonding layer 14 is formed on the side of the bent sheet 503 on the side end region 9bl side.
  • the intermediate sheet 9 and the folded upper surface 503a of the folded sheet 503 constitute a sheet laminated body 504, and the intermediate sheet 10 and the folded lower surface 503b are combined.
  • a sheet laminate 505 is formed.
  • the sheet laminate 504 is opened by force in the upward direction in the figure (Z1 direction in the figure), and the sheet laminate 505 is directed in the downward direction in the figure (Z2 direction in the figure).
  • the sheet laminate 50 4 positioned on the upper side of the illustrated virtual boundary line D—D constitutes the lower sheet half body 502B of the lower layer sheet 602 and the virtual boundary line D—D.
  • a sheet laminate 505 positioned on the lower side of the line constitutes a lower sheet half 602A constituting the lower sheet 602.
  • each of the sheets 5, 6, 7, 8, 9, 10, or the folded sheet 503 is laminated by the T die, and the hollow body 1,
  • a sheet body 601 having a width dimension about 101, 201, 301 or about twice as large as the sheet laminate 500 can be manufactured.
  • FIG. 10 shows a manufacturing apparatus for manufacturing the hollow bodies 1, 101, 201, 301, 401 and a manufacturing process of the hollow body using this manufacturing apparatus.
  • a manufacturing apparatus 800 shown in FIG. 10 includes a comparator 801 having a transport roll 801a and a transport apparatus 801b, and a bonding layer coating mechanism 810.
  • the bonding layer application mechanism 810 includes a hopper
  • a melt extruder 803 provided with 802 and a T-die 804 connected to the melt extruder 803 are configured as a force.
  • the sheet body 830 is placed on the transport device 801b.
  • the sheet body placed on the conveying device 801b is moved by the conveying device 801b continuously moving at a constant speed from the Y1 side to the Y2 side in the figure by the rotational driving force of the conveying roll. 830 is also conveyed from the Y1 side to the Y2 side.
  • the resin material 820 for forming the bonding layer 831 is put into the hopper 802 installed on the top thereof.
  • This resin material 820 is for forming the bonding layer 831, and is, for example, a polyethylene resin material.
  • the resin material 820 charged into the hopper 802 is used as the bonding layer 831 by a melt extrusion method using a T die 804.
  • melt extrusion method using a T die means that a die that becomes a U-shape when a die adapter is attached is placed in a melt extruder, and molten resin is removed. It means a processing method to extrude and form a resin into a sheet.
  • the resin material 820 is heated, melted, kneaded and extruded by the melt extruder 803, and is molded into a sheet from a slit formed in the paddy die 804. While being pushed out, the sheet body 830 is pushed out to form the bonding layer 831.
  • the bonding layer 83 passes through the guide roll 840.
  • another sheet body 832 is supplied.
  • the sheet body 832 is bonded onto the sheet body 830 via the bonding layer 831. That is, the sheet bodies 830 and 832 are joined by a melt extrusion lamination method using a joining layer 831 formed of the resin material 820.
  • the hollow body 1 is manufactured by the manufacturing apparatus 800 through the process of laminating (joining) the sheets 5, 6, 7, 8, 9, and 10 equivalent to the sheet bodies 830 and 832 as described above. However, a specific manufacturing process of the hollow body 1 will be described below.
  • FIG. 11 to FIG. 14 are process diagrams showing the manufacturing process of the hollow body 1 shown in FIG. 2, and are sectional views of the hollow body 1 in each manufacturing process as seen from the same directional force as FIG. .
  • the hollow part forming sheet 7 and the hollow part forming sheets 1 and 8 are superposed on the conveying device 801b of the manufacturing apparatus 800.
  • the lower surface 8b of the hollow portion forming sheet 8 is placed in contact with the transport device 801b.
  • the resin material 820 melted from the T die 804 is extruded from the upper surface 8a of the hollow portion forming sheet 8 to the upper surface 7a of the hollow portion forming sheet 7.
  • the resin material 820 is a region where the hollow portion forming sheet 7 overlaps the entire upper surface 7a of the hollow portion forming sheet 7 and the upper surface 8a of the hollow portion forming sheet 8.
  • the resin material 820 is extruded onto the upper surfaces 7a and 8a of the hollow portion forming sheets 7 and 8 while being formed into a sheet shape from the slit formed in the T die 804.
  • the resin material 820 thus extruded into a sheet form constitutes the first bonding layer 11.
  • the intermediate sheet 9 is overlapped and bonded onto the first bonding layer 11 so that the lower surface 9b is in contact with the first bonding layer 11.
  • the width dimension W3 of the intermediate sheet 9 is larger than the width dimension W2 of the hollow portion forming sheet 8 (see FIG. 2).
  • the first bonding layer 11 does not face the side end regions 9bl and 9b2 of the lower surface 9b of the intermediate sheet 9, and the first bonding layer does not face the side end regions 9bl and 9b2. 11 is not formed.
  • the entire surface of the upper surface 7a of the hollow portion forming sheet 7 is the first bonding layer 11
  • the both sides of the hollow portion forming sheet 8 are joined to the intermediate sheet 9 via the first joining layer 11.
  • the hollow portion forming sheets 7 and 8 and the intermediate sheet 9 thus laminated constitute a laminate 901.
  • the intermediate sheet 9 corresponds to the sheet body 830 shown in FIG. 10
  • the first bonding layer 11 corresponds to the bonding layer 831 shown in FIG.
  • the force of overlapping 7 and 8 Corresponds to the sheet body 832 shown in Fig.10.
  • the hollow portion from the side of the first bonding layer 11 is formed on the both side end regions 9bl and 9b2 of the lower surface 9b of the intermediate sheet 9 constituting the laminate 901.
  • the resin material 820 melted from the T die 804 is extruded to the side of the forming sheet 8 and the lower surface 8b of the hollow portion forming sheet 8 to form the second bonding layer 12.
  • the resin material 820 is a region where the hollow portion forming sheets 7 and 8 overlap the entire lower surface 8b of the hollow portion forming sheet 8 and the lower surface 9b of the intermediate sheet 9. Extruded over the entire surface (the entire width W3 of the intermediate sheet 9), that is, over the entire lower surface of the laminate 901.
  • the hollow portion forming sheets 7 and 8 and the intermediate sheets 9 and 10 laminated in this manner constitute a laminated body 902.
  • the laminated body 901 corresponds to the sheet body 830 shown in FIG. 10
  • the second joining layer 12 corresponds to the joining layer 831 shown in FIG. 10
  • the intermediate sheet 10 Corresponds to the sheet body 832 shown in FIG.
  • the upper side of the intermediate sheet 10 constituting the laminate 902 From the side of the second bonding layer 12 to the side of the intermediate sheet 9 and the upper surface 9a of the intermediate sheet 9 were melted from the T-die 804 to the both side end regions 10al and 10a2 of the surface 10a.
  • the resin material 820 is extruded to form the third bonding layer 13.
  • the resin material 820 includes the entire upper surface 9a of the intermediate sheet 9, and the hollow portion forming sheets 7 and 8 and the intermediate sheet 9 in the upper surface 10a of the intermediate sheet 10. Extruded over the entire surface (the entire area of the width dimension W4 of the intermediate sheet 10) other than the region, that is, over the entire upper surface of the laminate 902.
  • the hollow portion forming sheets 7 and 8, the intermediate sheets 9 and 10, and the first sheet 5 laminated in this manner constitute a laminated body 903.
  • the laminate 902 corresponds to the sheet body 830 shown in FIG. 10
  • the third bonding layer 13 corresponds to the bonding layer 831 shown in FIG.
  • the sheet 5 corresponds to the sheet body 832 shown in FIG.
  • lateral sides of the third bonding layer 13 are formed on the side end regions 5b 1 and 5b2 of the lower surface 5b of the first sheet 5 constituting the laminated body 903.
  • a force is also applied to the side of the intermediate sheet 10 and the lower surface 10b of the intermediate sheet 10 to extrude the resin material 820 melted from the T die 804 to form the fourth bonding layer 14.
  • the resin material 820 includes the hollow portion forming sheets 7 and 8 and the intermediate sheet 9 among the entire lower surface 10b of the intermediate sheet 10 and the lower surface 5b of the first sheet 5. Extruded over the entire area other than the area where 10 overlaps (the entire width dimension W5 of the first sheet 5), that is, over the entire lower surface of the laminate 903.
  • the hollow portion forming sheets 7 and 8, the intermediate sheets 9 and 10, the first sheet 5 and the second sheet 6 laminated in this way are laminated.
  • a body 904 is formed, and the laminated body 904 constitutes the hollow body 1 shown in FIG.
  • the laminated body 903 corresponds to the sheet body 830 shown in FIG. 10
  • the third bonding layer 13 corresponds to the bonding layer 831 shown in FIG.
  • the sheet 5 corresponds to the sheet body 832 shown in FIG.
  • the second sheets 6 are overlapped, and the sheets 5, 6 as described above are formed by the first bonding layer 11, the second bonding layer 12, the third bonding layer 13, and the fourth bonding layer 14, respectively.
  • the hollow body 1 can be produced simply by joining together 7, 8, 9, and 10, the hollow body 1 can be easily formed.
  • a method such as inflation method, etc.
  • the inflation method since the method is performed by blowing air into the interior of the resin, the equipment becomes large. .
  • the hollow body 1 can be manufactured by the T-die extrusion method, it can be manufactured without requiring a large facility.
  • the hollow portion is formed among the entire upper surface 7a of the hollow portion forming sheet 7 and the upper surface 8a of the hollow portion forming sheet 8. It is sufficient to form the first bonding layer 11 on the entire surface other than the region overlapping the sheet 7. Also, as shown in FIG. 12, the second bonding layer 12 may be formed over the entire lower surface of the laminate 901. In addition, as shown in FIG. 13, the third bonding layer 13 may be formed over the entire upper surface of the laminate 902. Furthermore, as shown in FIG. 14, the fourth bonding layer 14 may be formed over the entire lower surface of the laminate 903. As described above, in the method for manufacturing the hollow body 1 shown in FIGS.
  • the hollow body 1 can be manufactured without performing accurate control, and can be easily manufactured as a whole.
  • 15 to 18 are process diagrams showing a method for manufacturing the hollow body 101 shown in FIG. 3, and are sectional views of the hollow body 101 in each manufacturing process as seen from the same direction as FIG.
  • the laminate 901 shown in FIG. 15 is manufactured by the same process as that shown in FIG. 11 showing the method for manufacturing the hollow body 1.
  • the intermediate sheet 9 corresponds to the sheet body 830 shown in FIG. 10
  • the first bonding layer 11 corresponds to the bonding layer 831 shown in FIG. 10
  • the hollow part forming sheet The force of overlapping 7 and 8 Corresponds to the sheet body 832 shown in Fig.10.
  • the hollow portion from the side of the first bonding layer 11 is formed on both side end regions 9bl and 9b2 of the lower surface 9b of the intermediate sheet 9 constituting the laminate 901.
  • the resin material 820 melted from the T die 804 is extruded to the side of the forming sheet 8 and the lower surface 8b of the hollow portion forming sheet 8 to form the second bonding layer 12.
  • the resin material 820 is a region where the hollow portion forming sheets 7 and 8 overlap the entire lower surface 8b of the hollow portion forming sheet 8 and the lower surface 9b of the intermediate sheet 9. Extruded over the entire surface (the entire width W3 of the intermediate sheet 9), that is, over the entire lower surface of the laminate 901.
  • the hollow portion forming sheets 7 and 8 and the intermediate sheets 9 and 10 laminated in this manner constitute a laminated body 905.
  • the laminate 901 corresponds to the sheet body 830 shown in FIG. 10
  • the second joining layer 12 corresponds to the joining layer 831 shown in FIG. 10
  • the intermediate sheet 10 Corresponds to the sheet body 832 shown in FIG.
  • the resin material 820 melted from the T-die 804 is extruded onto the upper surface 9a of the intermediate sheet 9 constituting the laminated body 905, and the fifth bonding layer 15 Form. As shown in FIG. 17, the resin material 820 is extruded over the entire upper surface 9a of the intermediate sheet 9, that is, the entire upper surface of the laminate 905.
  • the hollow portion forming sheets 7 and 8, the intermediate sheets 9 and 10, and the first sheet 5 laminated in this manner constitute a laminated body 906.
  • the laminated body 905 corresponds to the sheet body 830 shown in FIG. 10
  • the fifth bonding layer 15 corresponds to the bonding layer 831 shown in FIG.
  • the sheet 5 corresponds to the sheet body 832 shown in FIG.
  • the fifth bonding layer 15 and the intermediate sheet are formed on the both side end regions 5bl and 5b2 of the lower surface 5b of the first sheet 5 constituting the laminate 906.
  • 9 and the side force of the third bonding layer 13 are also applied to the side of the intermediate sheet 10 and the lower surface 10b of the intermediate sheet 10 to extrude the resin material 820 melted from the T-die 804 for the fourth bonding.
  • Layer 14 is formed.
  • the resin material 820 includes the entire surface of the lower surface 10b of the intermediate sheet 10 and the hollow portion forming sheets 7 and 8 and the intermediate surface of the lower surface 5b of the first sheet 5.
  • the entire surface other than the area where sheets 9 and 10 overlap (the first sheet 5
  • the whole area of the width dimension W5) that is, the entire lower surface of the laminate 906 is extruded.
  • the hollow portion forming sheets 7 and 8, the intermediate sheets 9 and 10, the first sheet 5 and the second sheet 6 laminated in this way are laminated.
  • a body 907 is formed, and this laminate 907 constitutes the hollow body 101 shown in FIG.
  • the laminated body 906 corresponds to the sheet body 830 shown in FIG. 10
  • the fourth bonding layer 14 corresponds to the bonding layer 831 shown in FIG.
  • the sheet 6 corresponds to the sheet body 832 shown in FIG.
  • the hollow portion forming sheet 7, the hollow portion forming sheet 8, the intermediate sheet 9, the intermediate sheet 10, and the first sheet 5 The second sheets 6 are stacked, and the first bonding layer 11, the second bonding layer 12, the third bonding layer 13, and the fourth bonding layer 14 are used to form the respective sheets 5, 6 as described above. Since the hollow body 1 can be produced simply by joining together 7, 8, 9, and 10, the hollow body 1 can be easily formed. In addition, it can be manufactured without requiring large facilities and space.
  • the formation of the hollow portion among the entire upper surface 7a of the hollow portion forming sheet 7 and the upper surface 8a of the hollow portion forming sheet 8 is performed. It is sufficient to form the first bonding layer 11 on the entire surface other than the region overlapping the sheet 7. Also, as shown in FIG. 16, the second bonding layer 12 may be formed over the entire lower surface of the laminate 901. Also, as shown in FIG. 17, the fifth bonding layer 15 may be formed over the entire upper surface of the laminate 905. Further, as shown in FIG. 18, the fourth bonding layer 14 may be formed over the entire lower surface of the laminate 906. [0178] As described above, also in the method for manufacturing the hollow body 101 shown in Figs. 15 to 18, it is necessary to form a bonding layer in a narrow area at the side end of each sheet 5, 6, 7, 8, 9, 10. Therefore, the hollow body 101 can be manufactured without severe control of accuracy, and can be easily manufactured as a whole.
  • FIG. 19 to FIG. 20 are process diagrams showing the manufacturing process of the hollow body 201 shown in FIG. 4, and are sectional views of the hollow body 201 in each manufacturing process showing the same directional force as FIG. .
  • the first sheet 5 is placed on the transport device 801b so that the upper surface 5a is in contact with the transport device 801b of the manufacturing apparatus 800.
  • the resin material 820 melted from the T die 804 is pushed out to the lower surface 5b of the first sheet 5.
  • the resin material 820 is extruded over the entire lower surface 5b of the first sheet 5.
  • the resin material 820 is pushed out to the lower surface 5b of the first sheet 5 while being formed into a sheet shape from a slit formed in the T die 804.
  • the resin material 820 thus extruded into a sheet form constitutes the sixth bonding layer 30 shown in FIG.
  • a hollow portion forming sheet having a base material layer 208a and a bonding layer 208b is prepared. Then, as shown in FIG. 19, the hollow portion forming sheet 208 is overlaid on the hollow portion forming sheet 207 constituting the laminate 908.
  • the hollow portion forming sheet 207 laminated in this manner, the first sheet 5, and the hollow portion forming sheet 208 stacked on the hollow portion forming sheet 207 form a laminate 908.
  • the first sheet 5 corresponds to the sheet body 830 shown in FIG. 10
  • the sixth bonding layer 30 corresponds to the bonding layer 831 shown in FIG.
  • the forming sheets 207 and 208 correspond to the sheet body 832 shown in FIG.
  • the resin material 82 melted from the T die 804 is used. Extrude 0.
  • the resin material 820 is extruded over the entire lower surface 208c of the hollow portion forming sheet 208.
  • the resin material 820 is pushed out onto the lower surface 208c of the hollow portion forming sheet 208 while being formed into a sheet shape from a slit formed in the T die 804.
  • the resin material 820 thus extruded into a sheet forms the fourth bonding layer 14 shown in FIG.
  • the second sheet 6 is laminated and bonded so that the upper surface 6a is in contact with the fourth bonding layer 14.
  • a laminate 909 is formed by the first sheet 5, the second sheet 6, and the hollow portion forming sheets 207 and 208 laminated in this manner.
  • the laminated body 909 constitutes the hollow body 201 shown in FIG.
  • the hollow portion forming sheet 207, the hollow portion forming sheet 208, the first sheet 5, and the second sheet 6 are each provided. Since the hollow body 201 can be manufactured by simply joining the sheets 5, 6, 207, 208 to each other as described above by the fourth bonding layer 14 and the sixth bonding layer 30, the hollow body 201 can be easily formed. It can also be manufactured with V, which requires large equipment and space.
  • the sixth bonding layer 30 may be formed on the entire surface of the lower surface 5b of the first sheet 5. Further, as shown in FIG. 21, the fourth bonding layer 14 may be formed over the entire lower surface of the laminate 908.
  • the hollow body 201 can be manufactured without controlling severe precision, and can be easily manufactured as a whole.
  • FIG. 21 to FIG. 24 are process diagrams showing the manufacturing process of the hollow body 301 shown in FIG. 5, and are sectional views of the hollow body 301 in each manufacturing process showing the same directional force as FIG. .
  • the first sheet 5 is placed on the transport device 801b so that the upper surface 5a is in contact with the transport device 801b of the manufacturing apparatus 800.
  • the resin material 820 melted from the T die 804 is extruded onto the lower surface 5b of the first sheet 5. .
  • the resin material 820 is extruded over the entire lower surface 5 b of the first sheet 5.
  • the resin material 820 is pushed out to the lower surface 5b of the first sheet 5 while being formed into a sheet shape from a slit formed in the T die 804.
  • the resin material 820 thus extruded into a sheet form the seventh bonding layer 31 shown in FIG.
  • the intermediate sheet 9 is stacked so as to contact the lower surface 31b of the seventh bonding layer 31.
  • the resin material 820 melted from the T die 804 is extruded onto the lower surface 9 b of the intermediate sheet 9.
  • the resin material 820 is extruded over the entire lower surface 9b of the intermediate sheet 9.
  • the resin material 820 is pushed out to the lower surface 9b of the intermediate sheet 9 while being formed into a sheet shape from the slit formed in the T die 804.
  • the resin material 820 thus extruded into a sheet forms the ninth bonding layer 33 shown in FIG.
  • a laminate 910 is formed by the first sheet 5 and the intermediate sheet 9 laminated in this manner.
  • the first sheet 5 corresponds to the sheet body 830 shown in FIG. 10
  • the seventh bonding layer 31 corresponds to the bonding layer 831 shown in FIG. 10
  • the intermediate sheet 9 corresponds to the sheet body 832 shown in FIG.
  • the ninth bonding layer 33 is formed on the sheet body 832 shown in FIG. 10 using the T die 804.
  • the second sheet 6 is placed on the transport device 801b so that the lower surface 6b is in contact with the transport device 801b of the manufacturing apparatus 800.
  • the resin material 820 melted from the T die 804 is pushed out onto the upper surface 6a of the second sheet 6.
  • the resin material 820 is extruded over the entire upper surface 6 a of the second sheet 6.
  • the resin material 820 is pushed out to the upper surface 6a of the second sheet 6 while being formed into a sheet shape from the slit formed in the T die 804.
  • the resin material 820 thus extruded into a sheet form forms the eighth bonding layer 32 shown in FIG.
  • the intermediate sheet 10 is overlapped and bonded so as to be in contact with the upper surface 32a of the eighth bonding layer 32.
  • a laminate 911 is formed by the second sheet 6 and the intermediate sheet 10 laminated in this manner.
  • the second sheet 6 corresponds to the sheet body 830 shown in FIG. 10
  • the eighth bonding layer 32 corresponds to the bonding layer 831 shown in FIG. 10
  • the intermediate sheet 10 corresponds to the sheet body 832 shown in FIG.
  • the hollow portion forming sheet 7 is overlaid on the lower side of the laminate 910.
  • the lower surface 33b of the ninth bonding layer 33 formed on the laminated body 910 is overlapped with the upper surface 7a of the hollow portion forming sheet 7.
  • the laminate 911 and the hollow part forming sheet 7 are stacked to constitute the laminate 911.
  • the hollow portion is formed from the side of the hollow portion forming sheet 7 on both side end regions 33bl and 33b2 of the lower surface 33b of the ninth bonding layer 33 of the laminate 912.
  • the resin material 820 melted from the T die 804 is extruded onto the lower surface 7b of the forming sheet 7 to form the fourth bonding layer 14.
  • the resin material 820 is a region other than the region where the hollow portion forming sheet 7 overlaps the entire lower surface 7b of the inner space forming sheet 7 and the lower surface 33b of the ninth bonding layer 33. , Ie, the entire lower surface of the laminate 912 is extruded.
  • 25 to 27 are process diagrams showing the manufacturing process of the hollow body 401 shown in FIG. 6, and are sectional views of the hollow body 401 in each manufacturing process as seen from the same direction as FIG. .
  • the laminate 910 shown in FIG. 25 is manufactured by the same process as the process shown in FIG. 25
  • the first sheet 5 corresponds to the sheet body 830 shown in FIG. 10
  • the seventh bonding layer 31 corresponds to the bonding layer 831 shown in FIG. 10
  • the intermediate sheet 9 corresponds to the sheet body 832 shown in FIG.
  • the ninth bonding layer 33 is formed before the It is formed on the recording sheet 832 using the T-die 804.
  • the laminate 911 shown in FIG. 26 is manufactured by the same process as the process shown in FIG. 22 showing the method for manufacturing the hollow body 301.
  • the second sheet 6 corresponds to the sheet body 830 shown in FIG. 10
  • the eighth bonding layer 32 corresponds to the bonding layer 831 shown in FIG. 10
  • the intermediate sheet 10 corresponds to the sheet body 832 shown in FIG.
  • the hollow portion forming sheets 407A and 407B are stacked on the lower side of the laminate 910 in a state where they are arranged at a predetermined interval in the width direction.
  • the lower surface 33b of the ninth bonding layer 33 formed on the laminated body 910 overlaps with the upper surfaces 407Aa and 407Ba of the inner space forming sheets 407A and 407B.
  • the laminate 914 is configured by overlapping the laminate 910 and the hollow portion forming sheets 407A and 407B.
  • the hollow portion forming sheets 407A and 407B are front-facing from the side portions 33bl and 33b2 of the lower surface 33b of the ninth bonding layer 33 of the laminate 914.
  • the hollow portion forming sheets 407A and 407B are pressed against the lower surfaces 407Ab and 407Bb to extrude the resin material 820 melted from the T die 804 to form the fourth bonding layer 14.
  • the resin material 820 includes the hollow portion forming sheets 407A and 407B, the lower surfaces 407Ab and 407Bb of the hollow portion forming sheets 407A, and the lower surface 33b of the ninth bonding layer 33.
  • the entire surface other than the region where 407B overlaps, that is, the entire lower surface of the laminate 914 is extruded.
  • the sheet 601 shown in FIG. 8 is manufactured by cutting along the cutting line CC shown in FIG. 14 after the step shown in FIG. 14 showing the manufacturing method of the hollow body 1 shown in FIG.
  • the sheet body 601 shown in FIG. 8 is manufactured. Is done.
  • the sheet body 601 shown in FIG. 8 is manufactured when the cut end surface C2 is opened downwardly (in the direction Z2 in the drawing).
  • the sheet body 601 constituted by the sheet laminate body 500 having the structure shown in FIG. 9 can be manufactured by the following steps.
  • the first sheet 5 is placed on the transport device 801b so that the upper surface 5a is in contact with the transport device 801b of the manufacturing apparatus 800.
  • the resin material 820 melted from the T die 804 is pushed out to the lower surface 5b of the first sheet 5.
  • the resin material 820 is extruded over the entire surface of the lower surface 5b of the first sheet 5.
  • the resin material 820 is pushed out to the lower surface 5b of the first sheet 5 while being formed into a sheet shape from a slit formed in the T die 804.
  • the resin material 820 extruded in the form of a sheet in this way constitutes the seventh bonding layer 31 shown in FIG.
  • the intermediate sheet 9 is stacked so as to be in contact with the lower surface 31b of the seventh bonding layer 31.
  • the first sheet 5 corresponds to the sheet body 830 illustrated in FIG. 10
  • the seventh bonding layer 31 corresponds to the bonding layer 831 illustrated in FIG. 10
  • the intermediate sheet 9 is illustrated in FIG. This corresponds to the sheet body 832 shown in FIG.
  • a laminate 916 is formed by the first sheet 5 and the intermediate sheet 9 laminated in this manner.
  • the second sheet 6 is placed on the transport device 801b so that the lower surface 6b is in contact with the transport device 801b of the manufacturing apparatus 800.
  • the resin material 820 melted from the T die 804 is pushed out onto the upper surface 6a of the second sheet 6.
  • the resin material 820 is extruded over the entire upper surface 6a of the second sheet 6.
  • the resin material 820 is pushed out to the upper surface 6a of the second sheet 6 while being formed into a sheet shape from the slit formed in the T die 804.
  • the resin material 820 thus extruded into a sheet forms the eighth bonding layer 32 shown in FIG.
  • the intermediate sheet 10 is overlapped and bonded so as to be in contact with the upper surface 32a of the eighth bonding layer 32.
  • a laminated body 917 is formed by the second sheet 6 and the intermediate sheet 10 laminated in this manner.
  • the second sheet 6 corresponds to the sheet body 830 shown in FIG. 10
  • the eighth bonding layer 32 corresponds to the bonding layer 831 shown in FIG. 10
  • the intermediate sheet 10 corresponds to the sheet body 832 shown in FIG.
  • the resin material 820 melted from the T die 804 is extruded onto the lower surface 9b of the intermediate sheet 9 constituting the laminated body 916, so that the fourth bonding layer 14 Form. As shown in FIG. 31, the resin material 820 is extruded over the entire lower surface 9b of the intermediate sheet 9, that is, the entire lower surface of the laminate 916.
  • the laminate 916 and the bent sheet 503 are bonded via the fourth bonding layer 14.
  • a laminate 918 is formed.
  • the width dimension W3 of the intermediate sheet 9 is larger than the width dimension W7 of the folded sheet 503 (see FIG. 9), as shown in FIG.
  • the bent sheet 503 does not face the side end region 9bl of the lower surface 9b of the sheet 9.
  • the fourth bonding layer 14 is formed on the side of the bent sheet 503 on the side end region 9bl side.
  • the molten resin material 820 is extruded to form the eighth bonding layer 32.
  • the resin material 820 is extruded over the lower surface 14b of the fourth bonding layer 14 and the surface of the folded lower surface 503b of the folded sheet 503, that is, the entire lower surface of the laminate 918. It is.
  • the laminate 915 constitutes a sheet laminate 500 shown in FIG.
  • the intermediate sheet 9 and the folded upper surface 503a of the folded sheet 503 constitute a sheet laminate 504, and the intermediate sheet 10 and the bent lower surface 503b constitute a sheet laminate 505.
  • the sheet laminate 504 is opened by force in the upward direction (Z1 direction in the figure) shown in FIG. 32, and the sheet laminate 505 is opened in the downward direction (Z2 direction in the figure). Then, the sheet body 601 shown in FIG. 8 is manufactured.
  • the sheets 5, 6, 7, 8, 9, 10, or the folded sheet 503 are stacked by the T die 804, and the folded sheet 503 is simply opened.
  • the hollow body 1, 101, 201, 301 or the sheet body 601 having a width dimension about twice as large as the sheet laminate 500 can be manufactured.
  • the sheets 5, 6, 7, 8, 207, 208 As a method for producing the sheet laminate 500 for forming the hollow bodies 1, 101, 201, 301, 401 and the sheet body 601, the sheets 5, 6, 7, 8, 207, 208,
  • the example of joining 407A, 407B, and 503 is described by joining by melt extrusion laminating method, but the present invention is not limited to this.
  • an adhesive such as a heat welding method or a hot melt adhesive May be joined.
  • FIG. 1 is a perspective view showing a first embodiment of a hollow body of the present invention
  • FIG. 3 is a cross-sectional view of a hollow body according to a second embodiment of the present invention cut in the width direction
  • FIG. 4 is a cross-sectional view of a hollow body according to a third embodiment of the present invention cut in the width direction
  • FIG. 5 is a cross-sectional view of a hollow body according to a fourth embodiment of the present invention cut in the width direction;
  • FIG. 7 is a cross-sectional view taken along line VII-VII of the hollow body shown in FIG.
  • FIG. 8 is a perspective view showing a sheet body of the present invention.
  • FIG. 9 is a cross-sectional view of the sheet laminate for forming the sheet shown in FIG. 8, cut in the width direction;
  • FIG. 10 A production apparatus for producing the hollow body shown in FIG.
  • FIG. 11 is a process diagram showing a manufacturing process of the hollow body shown in FIG.
  • FIG. 12 is a process diagram showing the next process after the process shown in FIG.
  • FIG. 13 is a process diagram showing the next process after the process shown in FIG.
  • FIG. 14 is a process chart showing the next process of the process shown in FIG.
  • FIG. 15 is a process diagram showing a production process of the hollow body shown in FIG.
  • FIG. 16 is a process diagram showing the next process after the process shown in FIG.
  • FIG. 17 is a process diagram showing a process subsequent to the process shown in FIG.
  • FIG. 18 is a process diagram showing the next process after the process shown in FIG.
  • FIG. 19 is a process diagram showing a manufacturing process of the hollow body shown in FIG.
  • FIG. 20 is a process chart showing the next process of the process shown in FIG.
  • FIG. 21 is a process diagram showing a production process of the hollow body shown in FIG.
  • FIG. 22 is a process diagram showing a process subsequent to the process shown in FIG.
  • FIG. 23 is a process diagram showing a process subsequent to the process shown in FIG.
  • FIG. 24 is a process diagram showing the next process of the process shown in FIG.
  • FIG. 25 is a process diagram showing a production process of the hollow body shown in FIG.
  • FIG. 26 is a process diagram showing the next process of the process shown in FIG.
  • FIG. 27 is a process diagram showing the next process of the process shown in FIG.
  • FIG. 28 is a process chart showing the next process of the process shown in FIG.
  • FIG. 29 is a process diagram showing a manufacturing process of the sheet laminate shown in FIG. 9,
  • FIG. 30 is a process diagram showing a process subsequent to the process shown in FIG.
  • FIG. 31 is a process diagram showing a process subsequent to the process shown in FIG.
  • FIG. 32 is a process chart showing the next process of the process shown in FIG.

Abstract

[PROBLEMS] To provide a hollow body that can be produced easily; a sheet body that can be produced at low production cost with limited space; and processes for producing these. [MEANS FOR SOLVING PROBLEMS] There is provided hollow body (1) comprising multiple sheets (5,6,9,10) arranged opposite to each other in the up and down direction and bonded to each other via a junction layer. Hollow portion formation sheets (7,8) with a width dimension smaller than that of sheets (5,6,9,10) are interposed between the sheets (5,6,9,10). Beside the hollow portion formation sheets (7,8), the sheets are bonded to each other via junction layers (11,12,13,14). Hollow portion (2) is provided between the hollow portion formation sheets (7,8) and between the sheets (9,10). Further, there is provided sheet body (601) comprising lower layer sheet (602) and, bonded thereonto, upper layer sheet (603), wherein the upper layer sheet (603) consists of, arranged side-by-side in the direction of width, first sheet half body (604) and second sheet half body (605), while the lower layer sheet (602) consists of sheet laminate (504,505) composed of, superimposed one upon another, multiple sheets (5,6,7,8,9,10,503).

Description

明 細 書  Specification
中空体とシート体、およびこれらの製造方法  Hollow body and sheet body, and production method thereof
技術分野  Technical field
[0001] 本発明は中空体、シート体、およびそれらの製造方法に係り、特に容易に製造する ことが可能な中空体、低廉な製造コストと少ないスペースで製造可能なシート体、お よびこれらの製造方法に関する。  TECHNICAL FIELD [0001] The present invention relates to a hollow body, a sheet body, and a method for producing them, and in particular, a hollow body that can be easily produced, a sheet body that can be produced with low production cost and a small space, and production thereof. Regarding the method.
背景技術  Background art
[0002] 従来から、流体を流すための中空体や、袋体を製造するための材料として使用され る中空体はインフレーション法によって製造されている。しかし、インフレーション法で は、榭脂の内部にエアを吹き込んで膨らますなどの方法によって行われるため、設備 が大きくなるため、いわゆる τダイ押し出し法やドライラミネート法などの方法によって シート体を形成し、複数のシート体を上下方向で重ね、上下方向に対向するそれぞ れのシート体の両側端部を接合することによって中空体を製造することができる。  Conventionally, a hollow body for flowing a fluid and a hollow body used as a material for manufacturing a bag body have been manufactured by an inflation method. However, since the inflation method is performed by blowing air into the inside of the resin to swell, the equipment becomes large, so a sheet body is formed by a method such as the so-called τ die extrusion method or dry lamination method, A hollow body can be manufactured by stacking a plurality of sheet bodies in the vertical direction and joining both end portions of each sheet body facing in the vertical direction.
[0003] 一方、前記 Tダイ押し出し法によって製造されたシート体は、そのままで種々の用途 に使用されている。  [0003] On the other hand, sheet bodies produced by the T-die extrusion method are used as they are for various applications.
[0004] Tダイ押出し法に関する思想は、例えば以下に示す特許文献 1に開示されている。  [0004] The idea regarding the T-die extrusion method is disclosed in Patent Document 1 shown below, for example.
特許文献 1 :特開 2000— 326391号公報  Patent Document 1: JP 2000-326391 A
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0005] 前記 Tダイによって得られたシート体を重ねた状態で、それぞれの両側端部を接合 して中空体を製造する場合には、上下方向に対向する両シート体の両側端部のみを 接合する必要があるが、この際に接合部は溶融押し出しラミネート法や接着剤を用い た接着法や熱溶着法などの方法によって行われる。 [0005] When manufacturing a hollow body by joining both side ends in a state where the sheet bodies obtained by the T-die are overlapped, only the both side ends of both sheet bodies opposed in the vertical direction are used. It is necessary to join, but at this time, the joint is formed by a method such as a melt extrusion lamination method, an adhesive method using an adhesive, or a heat welding method.
[0006] しかし、前記両シートの両側端部のみをラミネート材ゃ接着剤で接合する場合には[0006] However, when only the both side edges of the two sheets are joined with a laminate or an adhesive,
、ラミネート材ゃ接着剤をシート体の側端部という狭い範囲にラミネート材ゃ接着剤を 塗布しなければならないため、製造の際の精度管理が必要となり、そのぶん製造を 容易に行うことができない。 [0007] また、前記 Tダイによって製造されたシート体の幅寸法は、前記 Τダイの幅寸法に 依存する。したがって、幅寸法が大きなシート体を製造するためには、製造されるシ ート体の幅寸法と同程度の大きな τダイが必要となるため、製造コストの高騰や、製 造スペースの確保が困難になる。 Because the laminating material has to be applied to a narrow area of the side edge of the sheet, the laminating material has to be applied in a narrow range, so it is necessary to control the accuracy of the production, and it cannot be easily manufactured. . [0007] In addition, the width dimension of the sheet body manufactured by the T die depends on the width dimension of the saddle die. Therefore, in order to manufacture a sheet body having a large width dimension, a τ die that is as large as the width dimension of the sheet body to be manufactured is required, so that the manufacturing cost increases and the manufacturing space is secured. It becomes difficult.
[0008] 本発明は前記従来の課題を解決するためのものであり、容易に製造することが可 能な中空体、低廉な製造コストと少ないスペースで製造可能なシート体、およびこれ らの製造方法を提供することを目的として!、る。  [0008] The present invention is for solving the above-described conventional problems, and is a hollow body that can be easily manufactured, a sheet body that can be manufactured at a low manufacturing cost and in a small space, and the manufacturing thereof. For the purpose of providing a way!
課題を解決するための手段  Means for solving the problem
[0009] 本発明の中空体は、上下方向で対向する複数のシートを有し、前記複数のシート は前記シート間に形成された接合層を介して接合されており、上下方向で対向する 前記シート間には、前記シートよりも幅寸法が小さい中空部形成シートが介挿されて おり、前記中空部形成シートの側方で上下方向で対向する前記シートが前記接合層 で形成された接合領域を介して接合されており、前記前記中空部形成シートと前記 シートとの間に中空部が形成されていることを特徴とするものである。  [0009] The hollow body of the present invention has a plurality of sheets opposed in the vertical direction, and the plurality of sheets are bonded via a bonding layer formed between the sheets, and are opposed in the vertical direction. A hollow region forming sheet having a width smaller than that of the sheet is interposed between the sheets, and a bonding region in which the sheet opposing the vertical direction on the side of the hollow portion forming sheet is formed by the bonding layer. And a hollow portion is formed between the hollow portion forming sheet and the sheet.
[0010] この場合、前記中空部形成シートは 1枚であり、前記中空部形成シートの一方の面 が前記接合層を介してシートと接合されており、前記中空部形成シートの他方の面と 前記シートとの間に、前記中空部が形成されているものとして構成できる。  [0010] In this case, the hollow part forming sheet is one sheet, and one surface of the hollow part forming sheet is bonded to the sheet via the bonding layer, and the other surface of the hollow part forming sheet is It can comprise as the said hollow part being formed between the said sheets.
[0011] また、上下方向で対向する 2枚の中空部形成シートを有し、 2枚の前記中空部形成 シートの間に前記中空部が形成されているものとして構成できる。  [0011] Further, it can be configured as having two hollow portion forming sheets opposed in the vertical direction, and the hollow portion is formed between the two hollow portion forming sheets.
[0012] また、前記中空部の側方には、上下方向で対向する中空部形成シートと前記シー トとを接合する接合層で形成された接合領域が複数形成されているものとして構成で きる。  [0012] In addition, a plurality of joining regions formed by a joining layer that joins the hollow part forming sheet and the sheet facing each other in the vertical direction may be formed on the side of the hollow part. .
[0013] また、前記シートは幅寸法が異なる複数のシートを有しており、幅寸法が異なる前 記シート体どうしが、前記接合領域を介して接合されて ヽるものとして構成できる。  [0013] The sheet includes a plurality of sheets having different width dimensions, and the sheet bodies having different width dimensions can be joined together via the joining region.
[0014] また、幅寸法が異なる 2枚の中空部形成シートを有しており、幅寸法が大きい方の 前記中空部形成シートが、前記接合領域で前記シートと接合されているものとして構 成できる。  [0014] Further, it has two hollow part forming sheets having different width dimensions, and the hollow part forming sheet having the larger width dimension is joined to the sheet in the joining region. it can.
[0015] また、複数の前記中空部形成シートが幅方向に間隔を空けて位置し、複数の前記 中空部が幅方向に間隔を空けて形成されているものとして構成できる。 [0015] Further, a plurality of the hollow portion forming sheets are positioned at intervals in the width direction, It can be configured that the hollow portions are formed at intervals in the width direction.
[0016] また本発明のシート体は、下層シートと、前記下層シートの上に接合された上層シ 一トとを有し、前記上層シートは第 1のシート半体と第 2のシート半体とが幅方向に並 んで配列された第 1のシート体を有し、前記第 1のシート半体の内側端領域と、前記 第 2のシート半体の内側端領域とが、前記下層シートの上面に対して上方側に折り 曲げられた状態で接合され、この接合部が前端から後端まで連続して形成されてお り、  [0016] The sheet body of the present invention includes a lower layer sheet and an upper layer sheet bonded onto the lower layer sheet, and the upper layer sheet includes a first sheet half body and a second sheet half body. Are arranged in parallel in the width direction, and the inner end region of the first sheet half and the inner end region of the second sheet half are formed of the lower sheet. Joined in a state of being bent upward with respect to the upper surface, and this joint is formed continuously from the front end to the rear end,
前記下層シートは複数のシートが積層されたシート積層体で形成されていることを 特徴とするものである。  The lower layer sheet is formed of a sheet laminate in which a plurality of sheets are laminated.
[0017] また本発明の中空体の製造方法は、以下の工程を有することを特徴とするものであ る。  [0017] The method for producing a hollow body of the present invention is characterized by having the following steps.
(a)シートの上に接合層を形成する工程と、  (a) forming a bonding layer on the sheet;
(b)前記接合層の上に、前記シートよりも幅寸法が小さい中空部形成シートを重ね、 前記接合層を介して前記中空部形成シートと前記シートとを接合する工程と、 (b) Overlying the hollow portion forming sheet having a smaller width than the sheet on the joining layer, and joining the hollow portion forming sheet and the sheet via the joining layer;
(c)前記中空部形成シートの上に他のシートを重ね、前記中空部形成シートの側方 で、前記接合層で形成された接合領域を介して前記シートと前記他のシートとを接合 し、前記中空部形成シートと前記シートとの間に中空部を形成する工程。 (c) Another sheet is stacked on the hollow portion forming sheet, and the sheet and the other sheet are bonded to each other through the bonding region formed by the bonding layer on the side of the hollow portion forming sheet. And a step of forming a hollow portion between the hollow portion forming sheet and the sheet.
[0018] この場合、前記 (b)工程で前記中空部形成シートを 1枚のシートで形成し、前記中 空部シートの一方の面を、前記接合層を介して前記シートと接合し、前記 (c)工程で 、前記中空部形成シートの他方の面と前記シートとの間に、前記中空部を形成するも のとして構成できる。  [0018] In this case, in the step (b), the hollow portion forming sheet is formed as a single sheet, and one surface of the hollow portion sheet is joined to the sheet via the joining layer, In the step (c), the hollow portion can be formed between the other surface of the hollow portion forming sheet and the sheet.
[0019] また、前記 (b)工程で前記中空部形成シートを上下方向で対向する 2枚のシートで 形成し、一方の前記中空部シートを、前記接合層を介して前記シートと接合し、前記 (c)工程で、他方の前記中空部形成シートの上に前記他のシートを重ね、 2枚の前 記中空部形成シートの側方で、前記接合層を介して前記シートと前記他のシートとを 接合し、 2枚の前記中空部形成シートの間に中空部を形成するものとして構成できる  [0019] Further, in the step (b), the hollow part forming sheet is formed by two sheets facing in the vertical direction, and one of the hollow part sheets is joined to the sheet via the joining layer, In the step (c), the other sheet is overlaid on the other hollow part forming sheet, and the sheet and the other part are disposed on the side of the two hollow part forming sheets via the bonding layer. A sheet can be joined and a hollow part can be formed between the two hollow part forming sheets.
[0020] また、前記 (c)工程の後に、 (d)前記シートと前記中空部形成シートとで形成されるシート積層体の上または下に 他の接合層を形成し、前記他の接合層に接するようにシートを積層し、このとき前記 他の接合層で形成された他の接合領域を前記シート積層体の側方に形成し、前記 他の接合領域を介して前記シート積層体と前記シートとを接合する工程、 [0020] Further, after the step (c), (d) forming another bonding layer on or under the sheet laminate formed by the sheet and the hollow portion forming sheet, and laminating the sheets so as to contact the other bonding layer, Forming another joining region formed of the joining layer on the side of the sheet laminate, and joining the sheet laminate and the sheet via the other joining region;
を有するものとして構成できる。  It can comprise as what has.
[0021] また、前記 (a)工程の前記シートと、前記 (d)工程の前記シートの幅寸法が異なるも のとして構成できる。 [0021] Further, the sheet in the step (a) and the sheet in the step (d) may have different width dimensions.
[0022] また、前記 (b)工程で、前記接合層の上に幅寸法が異なる 2枚の中空部形成シート を重ね、前記 (c)工程で、幅寸法が大きい方の前記中空部形成シートが、前記接合 領域で前記シートと接合されるものとして構成できる。  [0022] In the step (b), two hollow portion forming sheets having different width dimensions are stacked on the bonding layer, and in the step (c), the hollow portion forming sheet having a larger width dimension is stacked. However, it can be configured to be joined to the sheet in the joining region.
[0023] また、前記 (b)工程で、前記接合層の上に、複数の前記中空部形成シートを幅方 向に間隔を空けて重ね、前記 (c)工程で、幅方向に間隔を空けて位置する複数の前 記中空部を形成するものとして構成できる。 [0023] Further, in the step (b), the plurality of hollow portion forming sheets are stacked on the bonding layer with a gap in the width direction, and in the step (c), a gap is provided in the width direction. A plurality of the hollow portions positioned at the same position can be formed.
[0024] また本発明のシート体の製造方法は、以下の工程を有することを特徴とするもので ある。 [0024] The sheet body manufacturing method of the present invention is characterized by having the following steps.
(e)シートの上に接合層を形成する工程と、  (e) forming a bonding layer on the sheet;
(f)前記接合層の上に、前記シートよりも幅寸法が小さい中空部形成シートを重ね、 前記接合層を介して前記中空部形成シートと前記シートとを接合する工程と、 (f) A step of superposing a hollow part forming sheet having a width dimension smaller than that of the sheet on the joining layer, and joining the hollow part forming sheet and the sheet via the joining layer;
(g)前記中空部形成シートの上に他のシートを重ね、前記中空部形成シートの側方 で、前記接合層で形成された接合領域を介して前記シートと前記他のシートとを接合 し、前記中空部形成シートと前記シートとの間に中空部を形成する工程と、 (g) Another sheet is stacked on the hollow part forming sheet, and the sheet and the other sheet are joined to each other through the joining region formed by the joining layer on the side of the hollow part forming sheet. Forming a hollow part between the hollow part forming sheet and the sheet;
(h)前記中空体の前記中空部の上面または下面または側面の少なくとも一つを長手 方向に切断する工程。  (h) A step of cutting at least one of an upper surface, a lower surface, or a side surface of the hollow portion of the hollow body in a longitudinal direction.
[0025] また本発明のシート体の製造方法は、以下の工程を有することを特徴とするもので ある。  [0025] The method for producing a sheet of the present invention is characterized by having the following steps.
(i)シートの上に接合層を形成する工程と、  (i) forming a bonding layer on the sheet;
(j)前記接合層の上に、長手方向に沿って幅方向を 2分する折り曲げ線で折り曲げら れ両側端部が上下方向で対向して側方に開放端が形成された折り曲げシートを重 ね、前記接合層を介して前記折り曲げシートと前記シートとを接合する工程と、 (k)前記折り曲げシートの上に他のシートを重ね、前記折り曲げシートの側方で、前 記接合層で形成された接合領域を介して前記シートと前記他のシートとを接合する 工程。 (j) Over the bonding layer, a folding sheet having a folding line that bisects the width direction along the longitudinal direction and with both end portions facing each other in the vertical direction and an open end formed on the side is overlapped. A step of joining the folded sheet and the sheet via the joining layer; and (k) stacking another sheet on the folded sheet and forming the joining layer on the side of the folded sheet. Bonding the sheet and the other sheet through the bonded region.
発明の効果  The invention's effect
[0026] 本発明の中空体では、複数のシートを重ねて接合層によって、各シートを互いに接 合すれば良いので、中空体を容易に形成することができる。また、シビアな精度管理 を行わなくても中空体を製造することができるため、全体として容易に製造を行うこと ができる。  [0026] In the hollow body of the present invention, a plurality of sheets are stacked and each sheet is bonded to each other by a bonding layer, so that the hollow body can be easily formed. In addition, since the hollow body can be manufactured without carrying out severe accuracy control, it can be manufactured easily as a whole.
[0027] また本発明のシート体では、複数のシートあるいは前記折り曲げシートを積層し、こ れを開くだけで、大きさな幅寸法を有するシート体とすることができるため、低廉な製 造コストで製造することができるとともに、製造スペースの確保を容易にすることがで きる。  [0027] In the sheet body of the present invention, a sheet body having a large width dimension can be obtained by simply laminating a plurality of sheets or the folded sheet and opening the sheet, so that the manufacturing cost is low. In addition, the manufacturing space can be easily secured.
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0028] 図 1は本発明の中空体の第 1実施形態を示す斜視図、図 2は図 1に示す中空体を IFIG. 1 is a perspective view showing a first embodiment of the hollow body of the present invention, and FIG. 2 shows the hollow body shown in FIG.
I II線で切断した切断断面を模式的に示す断面図である。 It is sectional drawing which shows typically the cut cross section cut | disconnected by the II line.
[0029] 図 1に示すように、前記中空体 1は、図示 XI— X2方向に所定の間隔を有する幅寸 法を有し、図示 Y1— Y2方向に向力つて連続して延びて形成されている。前記中空 体 1では、図示 Y1— Y2方向が長手方向となり、図示 XI— X2方向が幅方向となる。 図 1に示すように中空体 1は、中空部 2と接合部 3a、 3bとを有して構成されている。 As shown in FIG. 1, the hollow body 1 has a width dimension having a predetermined interval in the illustrated XI-X2 direction, and is formed by continuously extending in the illustrated Y1-Y2 direction. ing. In the hollow body 1, the Y1-Y2 direction shown in the drawing is the longitudinal direction, and the XI-X2 direction shown is the width direction. As shown in FIG. 1, the hollow body 1 includes a hollow portion 2 and joint portions 3a and 3b.
[0030] 前記中空部 2は、前記中空体 1の長手方向に向力つて延びており、前端 2aが開口 部 4aを有する開放端として形成されている。また、前記中空部 2は、後端 2bが開口 部 4bを有する開放端として形成されて 、る。 [0030] The hollow portion 2 extends in the longitudinal direction of the hollow body 1, and the front end 2a is formed as an open end having an opening 4a. The hollow portion 2 is formed as an open end having a rear end 2b having an opening 4b.
[0031] 前記接合部 3aおよび 3bは、それぞれ前記中空部 2の両側方に形成されており、所 定の幅寸法を有して前記長手方向に延びて形成されて 、る。 [0031] The joint portions 3a and 3b are respectively formed on both sides of the hollow portion 2, and have a predetermined width dimension and extend in the longitudinal direction.
[0032] 図 2に示すように、前記中空体 1は、図示上方側（図示 Z1方向側）の外側に位置す る第 1のシート 5と、この第 1のシート 5の下方側（図示 Z2方向側）の外側に位置する 第 2のシート 6、および前記第 1のシート 5と前記第 2のシート 6の間に介装された 2枚 の中空部形成シート 7および 8を有している。図 2に示すように、 2枚の前記中空部形 成シート 7および 8は、互いに上下方向で対向配置する位置関係で形成されている。 図 2に示す実施形態では、前記中空部形成シート 7が前記第 1のシート 5側に位置す るとともに、前記中空部形成シート 8が前記第 2のシート 6側に位置するように対向配 置されている。 As shown in FIG. 2, the hollow body 1 includes a first sheet 5 positioned outside the upper side in the figure (Z1 direction side in the figure) and a lower side (Z2 in the figure) of the first sheet 5. The second sheet 6 located outside the direction side), and two sheets interposed between the first sheet 5 and the second sheet 6 The hollow portion forming sheets 7 and 8 are provided. As shown in FIG. 2, the two hollow portion forming sheets 7 and 8 are formed in a positional relationship in which they are opposed to each other in the vertical direction. In the embodiment shown in FIG. 2, the hollow portion forming sheet 7 is positioned on the first sheet 5 side, and the opposed portions are arranged so that the hollow portion forming sheet 8 is positioned on the second sheet 6 side. Has been.
[0033] 図 2に示す実施形態では、前記第 1のシート 5と前記中空部形成シート 7との間に中 間シート 9が形成されている。同様に、前記第 2のシート 6と前記中空部形成シート 8と の間にも中間シート 10が形成されており、図 2に示す前記中空体 1は、合計 6層のシ ート体が積層された構造として形成されている。  In the embodiment shown in FIG. 2, an intermediate sheet 9 is formed between the first sheet 5 and the hollow portion forming sheet 7. Similarly, an intermediate sheet 10 is also formed between the second sheet 6 and the hollow part forming sheet 8, and the hollow body 1 shown in FIG. It is formed as a structured.
[0034] 図 2に示すように、前記中空体 1には、前記中空部形成シート 7と 8との間に前記中 空部 2が形成されている。  As shown in FIG. 2, in the hollow body 1, the hollow portion 2 is formed between the hollow portion forming sheets 7 and 8.
[0035] 図 2に示すように、前記中空部形成シート 8の幅寸法 W2は、前記中空部形成シー ト 7の幅寸法 W1よりも大き 、寸法で形成されて 、る。  As shown in FIG. 2, the width dimension W 2 of the hollow part forming sheet 8 is larger than the width dimension W 1 of the hollow part forming sheet 7.
[0036] また前記中間シート 9の幅寸法 W3は、前記中空部形成シート 8の前記幅寸法 W2 よりも大きく形成されている。また、前記中間シ一と 10の幅寸法 W4は、前記中間シ ート 9の前記幅寸法 W3よりも大きく形成されている。  [0036] The width dimension W3 of the intermediate sheet 9 is formed larger than the width dimension W2 of the hollow portion forming sheet 8. Further, the width dimension W4 of the intermediate sheets 10 is formed larger than the width dimension W3 of the intermediate sheet 9.
[0037] 図 2に示すように、前記中空部形成シート 7の前記幅寸法 W1と、前記中空部形成 シート 8の前記幅寸法 W2と、前記中間シート 9の前記幅寸法 W3と、前記中間シート 10の前記幅寸法 W4との関係は、 Wl < W2く W3く W4となるように構成されて！、る  [0037] As shown in FIG. 2, the width dimension W1 of the hollow portion forming sheet 7, the width dimension W2 of the hollow portion forming sheet 8, the width dimension W3 of the intermediate sheet 9, and the intermediate sheet The relationship with the width dimension W4 of 10 is configured such that Wl <W2 W3 W4! RU
[0038] 図 2に示すように、前記中空部形成シート 7の下方側に前記中空部形成シート 8が 位置し、前記中空部形成シート 8の上方側に前記中空部形成シート 7を挟んで前記 中間シート 9が位置し、前記中間シート 9の下方側で前記中空部形成シート 7と前記 中空部形成シート 8を挟んで前記中間シート 10が形成されている。したがって、前記 中空部形成シート 7と前記中空部形成シート 8と前記中間シート 9と前記中間シート 1 0について、それぞれの前記幅寸法 W1ないし W4を大き方から順に並べてみると、 上下方向（図示 Z1— Z2方向）で互 、違いに重なるように、互 、の形成位置が構成さ れている。 [0039] 図 2に示すように、前記中空部形成シート 7は、下面 7bが前記中空部形成シート 8 の上面 8aに対向するように、前記中空部形成シート 8の上に重なるように配置されて いる。前記中空部形成シート 8の前記上面 8aには、前記中空部形成シート 7の側方 力も前記中空部形成シート 7の上面 7aにかけて、第 1接合層 11が形成されて！、る。 図 2に示すように、前記第 1接合層 11は、前記中空部形成シート 8の前記上面 8aのう ち、前記中空部形成シート 7と重なる領域 8alには形成されていない。したがって、前 記領域 8alでは、前記両中空部形成シート 7と 8とが接合されておらず、前記中空部 形成シート 7と前記中空部形成シート 8との間に前記中空部 2が形成される。すなわ ち、図 2に示すように、前記中空部 2は、前記中空部形成シート 7と前記中間シート 10 との間、および前記中空部形成シート 8と前記中間シート 9との間に位置するように形 成されている。 As shown in FIG. 2, the hollow portion forming sheet 8 is positioned below the hollow portion forming sheet 7, and the hollow portion forming sheet 7 is sandwiched between the hollow portion forming sheet 8 and the hollow portion forming sheet 7. The intermediate sheet 9 is located, and the intermediate sheet 10 is formed on the lower side of the intermediate sheet 9 with the hollow portion forming sheet 7 and the hollow portion forming sheet 8 interposed therebetween. Accordingly, when the width dimensions W1 to W4 of the hollow portion forming sheet 7, the hollow portion forming sheet 8, the intermediate sheet 9, and the intermediate sheet 10 are arranged in order from the largest, the vertical direction (Z1 in the drawing) — Z2 direction), the formation positions of each other are configured to overlap each other. As shown in FIG. 2, the hollow portion forming sheet 7 is arranged so as to overlap the hollow portion forming sheet 8 so that the lower surface 7b faces the upper surface 8a of the hollow portion forming sheet 8. ing. The first bonding layer 11 is formed on the upper surface 8a of the hollow portion forming sheet 8 so that the lateral force of the hollow portion forming sheet 7 is also applied to the upper surface 7a of the hollow portion forming sheet 7! RU As shown in FIG. 2, the first bonding layer 11 is not formed in a region 8al overlapping the hollow portion forming sheet 7 out of the upper surface 8a of the hollow portion forming sheet 8. Therefore, in the region 8al, the hollow portion forming sheets 7 and 8 are not joined, and the hollow portion 2 is formed between the hollow portion forming sheet 7 and the hollow portion forming sheet 8. . That is, as shown in FIG. 2, the hollow part 2 is located between the hollow part forming sheet 7 and the intermediate sheet 10 and between the hollow part forming sheet 8 and the intermediate sheet 9. It is formed as follows.
[0040] 図 2に示すように、前記第 1接合層 11は、前記中間シート 9の下面 9bに接している 。したがって、前記中空部形成シート 7と前記中間シート 9とが前記第 1接合層 11を 介して接合されるとともに、前記中空部形成シート 8と前記中間シート 9とが前記第 1 接合層 11を介して接合されている。図 2に示す実施形態では、前記第 1接合層 11は 前記中空部形成シート 8の前記幅寸法 W2と同じ幅寸法で形成されて ヽる。前記した ように、前記中空部形成シート 8の前記幅寸法 W2は、前記中間シート 9の前記幅寸 法 W3よりも小さく形成されている。したがって、前記第 1接合層 11は前記中間シート 9の下面 9bの側方部には対向していない。  As shown in FIG. 2, the first bonding layer 11 is in contact with the lower surface 9 b of the intermediate sheet 9. Therefore, the hollow portion forming sheet 7 and the intermediate sheet 9 are bonded via the first bonding layer 11, and the hollow portion forming sheet 8 and the intermediate sheet 9 are bonded via the first bonding layer 11. Are joined. In the embodiment shown in FIG. 2, the first bonding layer 11 is formed with the same width dimension as the width dimension W2 of the hollow portion forming sheet 8. As described above, the width dimension W2 of the hollow portion forming sheet 8 is smaller than the width dimension W3 of the intermediate sheet 9. Therefore, the first bonding layer 11 does not face the side portion of the lower surface 9b of the intermediate sheet 9.
[0041] 図 2に示すように、前記中間シート 9の下面 9bには、前記第 1接合層 11の側方から 前記中空部形成シート 8の側方、および前記中空部形成シート 8の下面 8bにかけて 、第 2接合層 12が形成されている。また前記第 2接合層 12は、前記中間シート 10の 上面 10aに接するように形成されている。したがって、前記中空部形成シート 8と前記 中間シート 10が前記第 2接合層 12を介して接合されるとともに、前記中間シート 9と 前記中間シート 10とが前記第 2接合層 12を介して接合されて 、る。図 2に示すように 、前記第 2接合層 12を介して前記中間シート 9と前記中間シート 10とが接合されてい る部分には、接合領域 22が形成されている。図 2に示す実施形態では、前記第 2接 合層 12は前記中間シート 9の前記幅寸法 W3と同じに形成されている。前記したよう に、前記中間シート 9の前記幅寸法 W3は、前記中間シート 10の前記幅寸法 W4より も小さく形成されている。したがって、前記第 2接合層 12は前記中間シート 10の前記 上面 10aの側方部には対向していない。 [0041] As shown in FIG. 2, the lower surface 9b of the intermediate sheet 9 has a side surface of the hollow portion forming sheet 8 from a side of the first bonding layer 11, and a lower surface 8b of the hollow portion forming sheet 8. As a result, the second bonding layer 12 is formed. The second bonding layer 12 is formed so as to be in contact with the upper surface 10a of the intermediate sheet 10. Therefore, the hollow portion forming sheet 8 and the intermediate sheet 10 are bonded via the second bonding layer 12, and the intermediate sheet 9 and the intermediate sheet 10 are bonded via the second bonding layer 12. And As shown in FIG. 2, a joining region 22 is formed at a portion where the intermediate sheet 9 and the intermediate sheet 10 are joined via the second joining layer 12. In the embodiment shown in FIG. 2, the second bonding layer 12 is formed to be the same as the width dimension W3 of the intermediate sheet 9. As before Furthermore, the width dimension W3 of the intermediate sheet 9 is formed smaller than the width dimension W4 of the intermediate sheet 10. Therefore, the second bonding layer 12 does not face the side portion of the upper surface 10a of the intermediate sheet 10.
[0042] 図 2に示すように、前記中間シート 10の前記上面 10aには、前記第 2接合層 12の 側方力も前記中間シート 9の側方、および前記中間シート 9の上面 9aにかけて第 3接 合層 13が形成されている。また前記第 3接合層 13は、前記第 1のシート 5の下面 5b に接するように形成されている。したがって、前記中間シート 9と前記前記第 1のシー ト 5が前記第 3接合層 13を介して接合されるとともに、前記中間シート 10と前記第 1の シート 5とが前記第 3接合層 13を介して接合されている。図 2に示すように、前記第 3 接合層 13を介して前記中間シート 10と前記第 1のシート 5とが接合されている部分に は、接合領域 23が形成されている。図 2に示す実施形態では、前記第 3接合層 13の 幅寸法は、前記中間シート 10の前記幅寸法 W4と同じに形成されている。図 2に示す ように、前記中間シート 10の前記幅寸法 W4は、前記第 1のシート 5の幅寸法 W5より も小さく形成されている。したがって、前記第 3接合層 13は前記第 1のシート 5の前記 下面 bの側方部には対向して 、な 、。  As shown in FIG. 2, on the upper surface 10 a of the intermediate sheet 10, the lateral force of the second bonding layer 12 is also applied to the side of the intermediate sheet 9 and the upper surface 9 a of the intermediate sheet 9. A bonding layer 13 is formed. The third bonding layer 13 is formed so as to be in contact with the lower surface 5b of the first sheet 5. Therefore, the intermediate sheet 9 and the first sheet 5 are bonded via the third bonding layer 13, and the intermediate sheet 10 and the first sheet 5 are bonded to the third bonding layer 13. Are joined through. As shown in FIG. 2, a joining region 23 is formed at a portion where the intermediate sheet 10 and the first sheet 5 are joined via the third joining layer 13. In the embodiment shown in FIG. 2, the width dimension of the third bonding layer 13 is formed to be the same as the width dimension W4 of the intermediate sheet 10. As shown in FIG. 2, the width dimension W 4 of the intermediate sheet 10 is formed smaller than the width dimension W 5 of the first sheet 5. Therefore, the third bonding layer 13 is opposed to the side portion of the lower surface b of the first sheet 5.
[0043] 図 2に示すように、前記第 1のシート 5の下面 5bには、前記第 3接合層 13の側方か ら前記中間シート 10の側方、および前記中間シート 10の下面 10bにかけて第 4接合 層 14が形成されている。また前記第 4接合層 14は、前記第 2のシート 6の上面 6aに 接するように形成されている。したがって、前記中間シート 10と前記第 2のシート 6と が前記第 4接合層 14を介して接合されるとともに、前記第 1のシート 5と前記第 2のシ ート 6とが前記第 4接合層 14を介して接合されている。図 2に示すように、前記第 4接 合層 14を介して前記第 1のシート 5と前記第 2のシート 6とが接合されている部分には 、接合領域 24が形成されている。図 2に示す実施形態では、前記第 4接合層 14の幅 寸法は、前記第 2のシート 6の幅寸法 W6と同じに形成されている。図 2に示すように、 前記第 2のシート 6の前記幅寸法 W6は、前記第 1のシート 5の前記幅寸法 W5と同じ に形成されている。したがって、前記第 4接合層 14は前記第 1のシート 5の側方部と 対向しており、前記第 1のシート 5の前記下面 5bの側方部と、前記第 2のシート 6の前 記上面 6aの側方部とが、前記第 4接合層 14を介して接合されて ヽる。 [0044] 図 2に示す前記接合領域 21、 22、 23、 24が、図 1に示す前記接合部 3a、 3bを構 成している。 As shown in FIG. 2, the lower surface 5b of the first sheet 5 extends from the side of the third bonding layer 13 to the side of the intermediate sheet 10 and the lower surface 10b of the intermediate sheet 10. A fourth bonding layer 14 is formed. The fourth bonding layer 14 is formed so as to be in contact with the upper surface 6 a of the second sheet 6. Therefore, the intermediate sheet 10 and the second sheet 6 are bonded together via the fourth bonding layer 14, and the first sheet 5 and the second sheet 6 are bonded to the fourth bonding layer 14. Joined through layer 14. As shown in FIG. 2, a bonding region 24 is formed at a portion where the first sheet 5 and the second sheet 6 are bonded via the fourth bonding layer 14. In the embodiment shown in FIG. 2, the width dimension of the fourth bonding layer 14 is formed to be the same as the width dimension W6 of the second sheet 6. As shown in FIG. 2, the width dimension W 6 of the second sheet 6 is formed to be the same as the width dimension W 5 of the first sheet 5. Therefore, the fourth bonding layer 14 faces the side portion of the first sheet 5, the side portion of the lower surface 5 b of the first sheet 5, and the second sheet 6. The side portions of the upper surface 6a are joined via the fourth joining layer 14. [0044] The joint regions 21, 22, 23, 24 shown in FIG. 2 constitute the joints 3a, 3b shown in FIG.
[0045] 図 2に示す前記中空体 1では、前記中空部形成シート 7、前記中空部形成シート 8 、前記中間シート 9、前記中間シート 10、前記第 1のシート 5、前記第 2のシート 6を重 ねて、前記第 1接合層 11、前記第 2接合層 12、前記第 3接合層 13、前記第 4接合層 14【こよって、前記したよう【こ各シート 5、 6、 7、 8、 9、 10を互!ヽ【こ接合すれ ί 良!ヽの で、中空体 1を容易に形成することができる。従来では、例えば榭脂材料などをイン フレーシヨン法などの方法によって中空体を形成していた力、前記インフレーション法 では樹脂の内部にエアを吹き込んで膨らますなどの方法によって行われるため、設 備が大きくなる。し力し前記中空体 1は後記するように Τダイ押し出し法によって製造 することができるため、大きな設備やスペースを必要としな 、で製造することが可能と なる。  In the hollow body 1 shown in FIG. 2, the hollow part forming sheet 7, the hollow part forming sheet 8, the intermediate sheet 9, the intermediate sheet 10, the first sheet 5, and the second sheet 6 The first bonding layer 11, the second bonding layer 12, the third bonding layer 13, the fourth bonding layer 14 and the like, as described above [each sheet 5, 6, 7, 8 Therefore, the hollow body 1 can be easily formed. Conventionally, for example, the force required to form a hollow body with a method such as an inflation method using a resin material, etc., and the inflation method is performed by blowing air into the resin to swell, for example. Become. However, since the hollow body 1 can be manufactured by the die extrusion method as will be described later, it can be manufactured without requiring a large facility or space.
[0046] また、後記する製造方法で説明するように、前記中空体 1では、シビアな精度管理 を行わなくても前記中空体 1を製造することができるため、全体として容易に製造を行 うことができる。  [0046] Further, as will be described later with respect to the manufacturing method, the hollow body 1 can be manufactured without severe precision control, so that the hollow body 1 can be manufactured easily as a whole. be able to.
[0047] また図 2に示す前記中空体 1では、前記中空部形成シート 8の前記幅寸法 W2の方 1S 前記中空部形成シート 7の前記幅寸法 W1よりも大きく形成されている。また、前 記中間シート 9の前記幅寸法 W3の方が、前記中空部形成シート 8の前記幅寸法 W2 よりも大きく形成されている。また、前記中間シート 9の前記幅寸法 W3よりも、前記中 間シート 10の前記幅寸法 W4の方が大きく形成されている。また、前記第 1のシート の前記幅寸法 W5および前記第 2のシート 6の前記幅寸法 W6は共に、前記中間シ ート 10の前記幅寸法 W4よりも大きく形成されている。そして前記したように、前記中 空部形成シート 7と前記中空部形成シート 8と前記中間シート 9と前記中間シート 10 について、それぞれの前記幅寸法 W1ないし W4を大き方力 順に並べてみると、上 下方向（図示 Z1— Ζ2方向）で互 、違いに重なるように、互 、の形成位置が構成され ている。  Further, in the hollow body 1 shown in FIG. 2, the width dimension W2 of the hollow part forming sheet 8 is formed to be larger than the width dimension W1 of the hollow part forming sheet 7. Further, the width dimension W3 of the intermediate sheet 9 is formed larger than the width dimension W2 of the hollow portion forming sheet 8. Further, the width dimension W4 of the intermediate sheet 10 is formed larger than the width dimension W3 of the intermediate sheet 9. The width dimension W5 of the first sheet and the width dimension W6 of the second sheet 6 are both formed larger than the width dimension W4 of the intermediate sheet 10. As described above, when the width dimensions W1 to W4 are arranged in the order of the greater force with respect to the hollow portion forming sheet 7, the hollow portion forming sheet 8, the intermediate sheet 9, and the intermediate sheet 10, The formation positions of each other are configured so as to overlap each other in the downward direction (Z1—Ζ2 direction in the figure).
[0048] 前記中空体 1では、前記中空部 2の側方に、前記第 1接合層 11を介して前記中空 部形成シート 8と前記中間シート 9とが接合された前記接合領域 21が形成されている 。また、前記接合領域 21の外側に、前記第 2接合層 12を介して前記中間シート 9と 前記中間シート 10とが接合された接合領域 22が形成されている。また、前記接合領 域 22の外側に、前記第 3接合層 13を介して前記中間シート 10と前記第 1のシートと が接合された接合領域 23が形成されている。さらに、前記接合領域 23の外側に、前 記第 4接合層を介して前記第 1のシート 5と前記第 2のシート 6とが接合された接合領 域 24が形成されている。 [0048] In the hollow body 1, the joining region 21 in which the hollow part forming sheet 8 and the intermediate sheet 9 are joined via the first joining layer 11 is formed on the side of the hollow part 2. ing . Further, a joining region 22 is formed on the outside of the joining region 21 in which the intermediate sheet 9 and the intermediate sheet 10 are joined via the second joining layer 12. Further, a joining region 23 in which the intermediate sheet 10 and the first sheet are joined via the third joining layer 13 is formed outside the joining region 22. Further, a joining region 24 is formed outside the joining region 23 in which the first sheet 5 and the second sheet 6 are joined via the fourth joining layer.
[0049] このように、前記中空体 1では、前記中空部 2の側方に複数の接合領域 21、 22、 2 3、 24が形成されているため、前記中空部 2の強度を大きく向上させることが可能とな る。 Thus, in the hollow body 1, since the plurality of joining regions 21, 22, 23, 24 are formed on the sides of the hollow portion 2, the strength of the hollow portion 2 is greatly improved. It becomes possible.
[0050] ここで、前記第 1のシート 5および前記第 2のシート 6は、例えば紐状あるいは細いシ ート状のポリエチレン（PE)材料を織った PE織布や、 PE織布の表面にポリプロピレン (PP)を被覆したもの、または PEフィルム、または紐状あるいは細いシート状のポリプ ロピレン（PP)材料を織った PP織布や PPフィルム（一軸延伸フィルムある!/ヽはニ軸延 伸フィルムのどちらも使用できる）、またはアルミ箔ゃ銅箔などの金属箔、またはポリ エステル (PET)フィルム、または PPや PETからなる基材の表面にアルミ蒸着や銅蒸 着を施したもの、または PP不織布や PE不織布や PET不織布やナイロン不織布、あ るいは紙材などによって形成することができる。  [0050] Here, the first sheet 5 and the second sheet 6 are formed on, for example, a PE woven fabric woven from a polyethylene material (PE) in a string shape or a thin sheet shape, or the surface of the PE woven fabric. Polypropylene (PP) coated or PE film, PP woven fabric or PP film woven with string or thin polypropylene (PP) material (uniaxially stretched film! /! Is biaxially stretched film) Can be used), or metal foil such as aluminum foil or copper foil, or polyester (PET) film, or the surface of a substrate made of PP or PET with aluminum vapor deposition or copper deposition, or PP It can be made of non-woven fabric, PE non-woven fabric, PET non-woven fabric, nylon non-woven fabric, or paper.
[0051] また前記中間シート 9および 10は、例えば紐状ある 、は細 、シート状のポリェチレ ン（PE)材料を織った PE織布や、 PE織布の表面にポリプロピレン (PP)を被覆したも の、または PEフィルム、または紐状あるいは細いシート状のポリプロピレン（PP)材料 を織った PP織布や PPフィルム（一軸延伸フィルムある ヽはニ軸延伸フィルムのどちら も使用できる）、または PP不織布や PE不織布や PET不織布やナイロン不織布、ある いは紙材などによって形成することができる。  [0051] The intermediate sheets 9 and 10 are, for example, a PE woven fabric made of a string-like, thin, or sheet-like polyethylene (PE) material, or a surface of the PE woven fabric covered with polypropylene (PP). PP woven fabric or PP film (one uniaxially stretched film or biaxially stretched film can be used), or PP non-woven fabric, woven with PE film, string-like or thin sheet-like polypropylene (PP) material PE nonwoven fabric, PET nonwoven fabric, nylon nonwoven fabric, or paper material.
[0052] また前記中空部形成シート 7および 8は、例えば低密度 PEで構成することができる 。この場合、例えば、防鲭包装材として前記中空体 1を使用する場合には、前記中空 部形成シート 7および 8に防鲭剤を混合するなど、用途に応じて添加剤を混合するこ とちでさる。  [0052] The hollow portion forming sheets 7 and 8 can be made of, for example, low density PE. In this case, for example, when the hollow body 1 is used as a fender wrapping material, an additive is mixed depending on the application, such as mixing a fender with the hollow portion forming sheets 7 and 8. I'll do it.
[0053] また前記第 1接合層 11、前記第 2接合層 12、前記第 3接合層 13および前記第 4接 合層 14は、例えば比較的溶融温度の低い低密度 PE (LDPE)で構成すると、接合 層として優れた機能を発揮できるため好ましい。 [0053] Also, the first bonding layer 11, the second bonding layer 12, the third bonding layer 13, and the fourth bonding layer. For example, the composite layer 14 is preferably composed of low-density PE (LDPE) having a relatively low melting temperature because it can exhibit an excellent function as a bonding layer.
[0054] 図 3は、本発明の第 2実施形態の中空体を幅方向に切断した切断断面（図 1に示 す II II線での切断断面に相等）を模式的に示す断面図であり、図 2に相等する図 である。図 3に示す中空体 101の斜視図は図 1と同様となるため省略する。  [0054] Fig. 3 is a cross-sectional view schematically showing a cut cross section (equivalent to the cut cross section taken along line II-II shown in Fig. 1) of the hollow body of the second embodiment of the present invention in the width direction. Figure 2 is equivalent to Figure 2. A perspective view of the hollow body 101 shown in FIG. 3 is the same as FIG.
[0055] 図 3に示す前記中空体 101は、図 1および図 2に示す前記中空体 1と同じ構成要素 を有して構成されている。したがって、図 3に示す前記中空体 101の構成要素のうち 、図 1および図 2に示す前記中空体 1と同じ構成要素には、前記中空体 1と同じ符号 を付して、その詳しい説明を省略する。  [0055] The hollow body 101 shown in FIG. 3 has the same components as the hollow body 1 shown in FIGS. Therefore, among the components of the hollow body 101 shown in FIG. 3, the same components as those of the hollow body 1 shown in FIG. 1 and FIG. Omitted.
[0056] 図 3に示す中空体 101が、図 2に示す前記中空体 1と異なるのは、図 3に示すように 前記中間シート 9の幅寸法 W3と前記中間シート 10の前記幅寸法 W4とが同じ大きさ で形成されている点である。図 3に示すように、前記中間シート 9の下面 9bには、前 記第 1接合層 11の側方から前記中空部形成シート 8の側方、および前記中空部形 成シート 8の下面 8bにかけて、第 2接合層 12が形成されている。また前記第 2接合層 12は、前記中間シート 10の上面 10aに接するように形成されている。したがって、前 記中空部形成シート 8と前記中間シート 10が前記第 2接合層 12を介して接合される とともに、前記中間シート 9と前記中間シート 10とが前記第 2接合層 12を介して接合 されている。図 2に示すように、前記第 2接合層 12を介して前記中間シート 9と前記中 間シート 10とが接合されている部分には、接合領域 22が形成されている。  The hollow body 101 shown in FIG. 3 is different from the hollow body 1 shown in FIG. 2 in that the width dimension W3 of the intermediate sheet 9 and the width dimension W4 of the intermediate sheet 10 are different as shown in FIG. Are the same size. As shown in FIG. 3, the lower surface 9b of the intermediate sheet 9 extends from the side of the first bonding layer 11 to the side of the hollow portion forming sheet 8 and the lower surface 8b of the hollow portion forming sheet 8. A second bonding layer 12 is formed. The second bonding layer 12 is formed so as to be in contact with the upper surface 10a of the intermediate sheet 10. Therefore, the hollow portion forming sheet 8 and the intermediate sheet 10 are bonded via the second bonding layer 12, and the intermediate sheet 9 and the intermediate sheet 10 are bonded via the second bonding layer 12. Has been. As shown in FIG. 2, a joining region 22 is formed in a portion where the intermediate sheet 9 and the intermediate sheet 10 are joined via the second joining layer 12.
[0057] また図 3に示すように、前記第 1のシート 5の下面 5bには、前記第 2接合層 12の側 方から前記中間シート 9の側方と前記中間シート 10の側方、および前記中間シート 1 0の下面 10bにかけて第 4接合層 14が形成されて 、る。また前記第 4接合層 14は、 前記第 2のシート 6の上面 6aに接するように形成されている。したがって、前記中間シ ート 10と前記第 2のシート 6とが前記第 4接合層 14を介して接合されるとともに、前記 第 1のシート 5と前記第 2のシート 6とが前記第 4接合層 14を介して接合されている。 図 2に示すように、前記第 4接合層 14を介して前記第 1のシート 5と前記第 2のシート 6とが接合されている部分には、接合領域 24が形成されている。また、前記中間シー ト 9と前記第 1のシート 5の間には第 5接合層 15が形成されており、この第 5接合層 15 を介して前記中間シート 9と前記第 1のシート 5とが接合されている。 Further, as shown in FIG. 3, on the lower surface 5b of the first sheet 5, from the side of the second bonding layer 12, the side of the intermediate sheet 9, the side of the intermediate sheet 10, and A fourth bonding layer 14 is formed over the lower surface 10b of the intermediate sheet 10. The fourth bonding layer 14 is formed so as to contact the upper surface 6 a of the second sheet 6. Therefore, the intermediate sheet 10 and the second sheet 6 are bonded via the fourth bonding layer 14, and the first sheet 5 and the second sheet 6 are bonded to the fourth bonding layer 14. Joined through layer 14. As shown in FIG. 2, a bonding region 24 is formed at a portion where the first sheet 5 and the second sheet 6 are bonded via the fourth bonding layer 14. Further, a fifth bonding layer 15 is formed between the intermediate sheet 9 and the first sheet 5, and the fifth bonding layer 15 The intermediate sheet 9 and the first sheet 5 are joined via the gap.
[0058] 図 3に示す前記接合領域 21、 22、 24が、図 1に示す前記接合部 3a、 3bを構成し ている。 [0058] The joint regions 21, 22, 24 shown in FIG. 3 constitute the joints 3a, 3b shown in FIG.
[0059] 図 3に示す中空体 101でも、大きな設備やスペースを必要としないで製造すること が可能となるとともに、シビアな精度管理を行わなくても前記中空体 101を製造するこ とができるため、全体として容易に製造を行うことができる。  [0059] The hollow body 101 shown in Fig. 3 can also be manufactured without requiring large equipment and space, and the hollow body 101 can be manufactured without severe precision control. Therefore, it can manufacture easily as a whole.
[0060] また、前記中空体 101では、前記中空部 2の側方に複数の接合領域 21、 22、 24 が形成されているため、前記中空部 2の強度を大きく向上させることが可能となる。  [0060] Further, in the hollow body 101, since a plurality of joining regions 21, 22, 24 are formed on the sides of the hollow portion 2, the strength of the hollow portion 2 can be greatly improved. .
[0061] なお、前記第 5接合層 15は、例えば比較的溶融温度の低 、低密度 PE (LDPE)で 構成すると、接合層として優れた機能を発揮できるため好ましい。  [0061] It is preferable that the fifth bonding layer 15 is composed of, for example, a relatively low melting temperature and low density PE (LDPE) because it can exhibit an excellent function as a bonding layer.
[0062] 図 4は、本発明の第 3実施形態の中空体を幅方向に切断した切断断面（図 1に示 す II II線での切断断面に相等）を模式的に示す断面図であり、図 2に相等する図 である。図 4に示す中空体 201の斜視図は図 1と同様となるため省略する。  [0062] Fig. 4 is a cross-sectional view schematically showing a cut cross section (equivalent to the cut cross section taken along line II-II shown in Fig. 1) of the hollow body of the third embodiment of the present invention in the width direction. Figure 2 is equivalent to Figure 2. The perspective view of the hollow body 201 shown in FIG. 4 is the same as FIG.
[0063] 図 4に示す前記中空体 201は、図 1および図 2に示す前記中空体 1と同じ構成要素 を有して構成されている。したがって、図 4に示す前記中空体 201の構成要素のうち 、図 1および図 2に示す前記中空体 1と同じ構成要素には、前記中空体 1と同じ符号 を付して、その詳しい説明を省略する。  [0063] The hollow body 201 shown in FIG. 4 has the same components as the hollow body 1 shown in FIGS. Therefore, among the components of the hollow body 201 shown in FIG. 4, the same components as those of the hollow body 1 shown in FIGS. Omitted.
[0064] 図 4に示すように、前記中空体 201は、図示上方側（図示 Z1方向側）の外側に位置 する第 1のシート 5と、この第 1のシート 5の下方側（図示 Z2方向側）の外側に位置す る第 2のシート 6、および前記第 1のシート 5と前記第 2のシート 6の間に介装された 2 枚の中空部形成シート 207および 208を有している。図 4に示すように、 2枚の前記 中空部形成シート 207および 208は、互いに上下方向で対向配置する位置関係で 形成されている。図 4に示す実施形態では、前記中空部形成シート 207が前記第 1 のシート 5側に位置するとともに、前記中空部形成シート 208が前記第 2のシート 6側 に位置するように対向配置されて 、る。  [0064] As shown in FIG. 4, the hollow body 201 includes a first sheet 5 positioned on the outer side of the upper side in the figure (Z1 direction side in the figure), and a lower side of the first sheet 5 (in the Z2 direction in the figure). A second sheet 6 located on the outside of the first sheet 5 and two hollow portion forming sheets 207 and 208 interposed between the first sheet 5 and the second sheet 6. . As shown in FIG. 4, the two hollow portion forming sheets 207 and 208 are formed in a positional relationship in which they are opposed to each other in the vertical direction. In the embodiment shown in FIG. 4, the hollow portion forming sheet 207 is located on the first sheet 5 side, and the hollow portion forming sheet 208 is disposed so as to face the second sheet 6 side. RU
[0065] 図 4に示す前記中空体 201では、図 2に示す前記中空体 1と異なり、前記第 1のシ ート 5と前記中空部形成シート 7との間に中間シート 9が形成されておらず、また前記 第 2のシート 6と前記中空部形成シート 8との間にも中間シート 10が形成されていな い。したがって、図 4に示す前記中空体 201は、合計 4層のシート体が積層された構 造として形成されている。 In the hollow body 201 shown in FIG. 4, unlike the hollow body 1 shown in FIG. 2, an intermediate sheet 9 is formed between the first sheet 5 and the hollow portion forming sheet 7. There is also no intermediate sheet 10 formed between the second sheet 6 and the hollow portion forming sheet 8. Yes. Therefore, the hollow body 201 shown in FIG. 4 is formed as a structure in which a total of four sheet bodies are laminated.
[0066] 図 4に示すように、前記中空体 201には、前記中空部形成シート 207と 208との間 に中空部 2が形成されている。すなわち図 4に示すように、前記中空部 2は、前記中 空部形成シート 207と前記第 2のシート 6との間、および前記中空部形成シート 208と 前記第 1のシート 5との間に位置するように形成されている。 As shown in FIG. 4, a hollow portion 2 is formed between the hollow portion forming sheets 207 and 208 in the hollow body 201. That is, as shown in FIG. 4, the hollow portion 2 is formed between the hollow portion forming sheet 207 and the second sheet 6, and between the hollow portion forming sheet 208 and the first sheet 5. It is formed to be located.
[0067] 図 4に示すように、前記中空体 201では、図 2に示す前記中空体 1と異なり、前記中 空部形成シート 207の幅寸法 W7と前記中空部形成シート 208の幅寸法 W8とが同じ 幅寸法で形成されている。 [0067] As shown in FIG. 4, in the hollow body 201, unlike the hollow body 1 shown in FIG. 2, the width dimension W7 of the hollow part forming sheet 207 and the width dimension W8 of the hollow part forming sheet 208 are Are formed with the same width dimension.
[0068] また前記第 1のシートの前記幅寸法 W5と前記第 2のシート 6の前記幅寸法 W2も同 じ幅寸法で形成されている。そして、前記中空部形成シート 207の前記幅寸法 W7お よび前記中空部形成シート 208の前記幅寸法 W8よりも、前記第 1のシート 5の前記 幅寸法 W5および前記第 2のシート 6の前記幅寸法 W6の方が大きく形成されている [0068] The width dimension W5 of the first sheet and the width dimension W2 of the second sheet 6 are also formed with the same width dimension. Then, the width dimension W5 of the first sheet 5 and the width of the second sheet 6 are larger than the width dimension W7 of the hollow section formation sheet 207 and the width dimension W8 of the hollow section formation sheet 208. Dimension W6 is larger
[0069] 図 4に示す実施形態では、前記中空部形成シート 207は基材層 207aと接合層 20 7bの 2層構造で形成されている。また前記中空部形成シート 208も基材層 208aと接 合層 208bとの 2層構造で形成されている。そして、前記接合層 207bと 208bとが互 いに対向している。 In the embodiment shown in FIG. 4, the hollow portion forming sheet 207 is formed in a two-layer structure of a base material layer 207a and a bonding layer 207b. The hollow portion forming sheet 208 is also formed in a two-layer structure of a base material layer 208a and a bonding layer 208b. The bonding layers 207b and 208b are opposed to each other.
[0070] 前記中空部形成シート 207と前記第 1のシート 5の間には第 6接合層 30が形成され ており、この第 6接合層 30の中央領域を介して前記中空部形成シート 7と前記第 1の シート 5とが接合されている。  [0070] A sixth bonding layer 30 is formed between the hollow portion forming sheet 207 and the first sheet 5, and the hollow portion forming sheet 7 and the hollow portion forming sheet 7 are interposed via a central region of the sixth bonding layer 30. The first sheet 5 is joined.
[0071] 図 4に示すように、前記第 6接合層 30の下面 30bには、前記中空部形成シート 207 の側方から前記中空部形成シート 208の側方、および前記中空部形成シート 208の 下面 208cにかけて第 4接合層 14が形成されている。また前記第 4接合層 14は、前 記第 2のシート 6の上面 6aに接するように形成されている。したがって、前記中空部 形成シート 8と前記第 2のシート 6とが前記第 4接合層 14を介して接合されるとともに、 前記第 6接合層 30と前記第 2のシート 6とが前記第 4接合層 14を介して接合されてい る。したがって、前記第 1のシート 5と前記第 2のシート 6とが、前記第 4接合層 14およ び前記第 6接合層 30を介して接合されている。図 4に示すように、前記第 4接合層 14 を介して前記第 6接合層 30と前記第 2のシート 6とが接合されている部分には、接合 領域 24が形成されている。 As shown in FIG. 4, on the lower surface 30b of the sixth bonding layer 30, the side of the hollow part forming sheet 208 from the side of the hollow part forming sheet 207 and the side of the hollow part forming sheet 208 A fourth bonding layer 14 is formed over the lower surface 208c. The fourth bonding layer 14 is formed so as to be in contact with the upper surface 6a of the second sheet 6. Therefore, the hollow portion forming sheet 8 and the second sheet 6 are bonded via the fourth bonding layer 14, and the sixth bonding layer 30 and the second sheet 6 are bonded to the fourth bonding layer 14. Joined through layer 14. Therefore, the first sheet 5 and the second sheet 6 are connected to the fourth bonding layer 14 and the fourth bonding layer 14. And the sixth bonding layer 30. As shown in FIG. 4, a bonding region 24 is formed at a portion where the sixth bonding layer 30 and the second sheet 6 are bonded via the fourth bonding layer 14.
[0072] 図 4に示す前記接合領域 24が、図 1に示す前記接合部 3a、 3bを構成している。  [0072] The joint region 24 shown in FIG. 4 constitutes the joints 3a and 3b shown in FIG.
図 4に示す中空体 201でも、大きな設備やスペースを必要としな 、で製造すること が可能となるとともに、シビアな精度管理を行わなくても前記中空体 201を製造するこ とができるため、全体として容易に製造を行うことができる。  The hollow body 201 shown in FIG. 4 can be manufactured without requiring large equipment and space, and the hollow body 201 can be manufactured without severe precision control. Manufacturing as a whole can be easily performed.
[0073] また、前記中空体 201では、前記中空部形成シート 207および 208のそれぞれに 前記接合層 207bおよび 208bが形成されており、し力も前記接合層 207bと 208bと が互いに対向するように位置している。したがって、前記中空部 2の前端 2aや後端 2 bを前記接合層 207bと 208bとで接合することによって袋体を容易に形成することが できる。あるいは長手方向（図 1に示す Y1— Y2方向）の途中で幅方向（図 1に示す X 1— X2方向）に切断し、この切断端面で前記接合層 207bと 208bとを接合することに よって、袋体を容易に形成することができる。  [0073] Further, in the hollow body 201, the bonding layers 207b and 208b are formed on the hollow portion forming sheets 207 and 208, respectively, so that the bonding layers 207b and 208b are positioned so as to face each other. is doing. Therefore, a bag can be easily formed by joining the front end 2a and the rear end 2b of the hollow portion 2 with the joining layers 207b and 208b. Alternatively, by cutting in the width direction (X1-X2 direction shown in FIG. 1) in the middle of the longitudinal direction (Y1-Y2 direction shown in FIG. 1), the bonding layers 207b and 208b are bonded at the cut end face. The bag body can be easily formed.
[0074] ただし、前記中空部形成シート 207および 208が前記基材層 207a、 208aのみの 単層で形成されていても、前記中空体 201としての製造を容易に行えるという効果は 奏することができる。  [0074] However, even when the hollow portion forming sheets 207 and 208 are formed of only a single layer of the base material layers 207a and 208a, an effect that the hollow body 201 can be easily manufactured can be obtained. .
[0075] 前記中空部形成シート 207および 208の構成する前記基材層 207aおよび 208aは 、例えば PPフィルムで形成することができ、例えば二軸延伸 PPフィルム（OPP)で形 成することができる。また前記接合層 207bおよび 208bは、低密度 PEで形成するこ とがでさる。  [0075] The base material layers 207a and 208a constituting the hollow portion forming sheets 207 and 208 can be formed of, for example, a PP film, and can be formed of, for example, a biaxially stretched PP film (OPP). The bonding layers 207b and 208b can be formed of low density PE.
[0076] また前記第 6接合層 30は、例えば比較的溶融温度の低 、低密度 PE (LDPE)で構 成すると、接合層として優れた機能を発揮できるため好ましい。  In addition, it is preferable that the sixth bonding layer 30 is composed of, for example, a relatively low melting temperature and low density PE (LDPE) because it can exhibit an excellent function as a bonding layer.
[0077] 図 5は、本発明の第 4実施形態の中空体を幅方向に切断した切断断面（図 1に示 す II II線での切断断面に相等）を模式的に示す断面図であり、図 2に相等する図 である。図 5に示す中空体 301の斜視図は図 1と同様となるため省略する。  [0077] FIG. 5 is a cross-sectional view schematically showing a cut cross section (equivalent to the cut cross section taken along line II-II shown in FIG. 1) of the hollow body of the fourth embodiment of the present invention in the width direction. Figure 2 is equivalent to Figure 2. The perspective view of the hollow body 301 shown in FIG. 5 is the same as FIG.
[0078] 図 5に示す前記中空体 301は、図 1および図 2に示す前記中空体 1と同じ構成要素 を有して構成されている。したがって、図 5に示す前記中空体 301の構成要素のうち 、図 1および図 2に示す前記中空体 1と同じ構成要素には、前記中空体 1と同じ符号 を付して、その詳しい説明を省略する。 The hollow body 301 shown in FIG. 5 has the same components as the hollow body 1 shown in FIGS. 1 and 2. Therefore, among the components of the hollow body 301 shown in FIG. The same components as those of the hollow body 1 shown in FIGS. 1 and 2 are denoted by the same reference numerals as those of the hollow body 1, and detailed description thereof is omitted.
[0079] 図 5に示すように、前記中空体 301は、図示上方側（図示 Z1方向側）の外側に位置 する第 1のシート 5と、この第 1のシート 5の下方側（図示 Z2方向側）の外側に位置す る第 2のシート 6、および前記第 1のシート 5と前記第 2のシート 6の間に介装された 1 枚の中空部形成シート 7を有して 、る。  [0079] As shown in FIG. 5, the hollow body 301 includes a first sheet 5 positioned outside the upper side in the figure (Z1 direction side in the figure), and a lower side of the first sheet 5 (in the Z2 direction in the figure). A second sheet 6 positioned on the outer side of the first sheet 5, and one hollow portion forming sheet 7 interposed between the first sheet 5 and the second sheet 6.
[0080] 図 5に示すように、前記中空体 301では、前記中空部形成シート 7と前記第 1のシ ート 5との間に中間シート 9が形成されている。また前記中空部形成シート 7と前記第 2のシート 6との間に中間シート 10が形成されている。したがって、図 5に示す前記中 空体 301は、合計 5層のシート体が積層された構造として形成されている。  As shown in FIG. 5, in the hollow body 301, an intermediate sheet 9 is formed between the hollow portion forming sheet 7 and the first sheet 5. An intermediate sheet 10 is formed between the hollow portion forming sheet 7 and the second sheet 6. Therefore, the hollow body 301 shown in FIG. 5 is formed as a structure in which a total of five sheet bodies are laminated.
[0081] 図 5に示すように、前記中空体 201では、図 2に示す前記中空体 1と異なり、前記中 間シート 9の幅寸法 W3と前記中間シート 10の幅寸法 W4とが同じ幅寸法で形成され ている。そして、前記中間シート 9の前記幅寸法 W3および前記中間シート 10の幅寸 法 W4の方力 前記中空部形成シート 7の幅寸法 W1よりも大きく形成されている。  [0081] As shown in FIG. 5, in the hollow body 201, unlike the hollow body 1 shown in FIG. 2, the width dimension W3 of the intermediate sheet 9 and the width dimension W4 of the intermediate sheet 10 are the same width dimension. It is formed by. Then, the force of the width dimension W3 of the intermediate sheet 9 and the width dimension W4 of the intermediate sheet 10 are formed larger than the width dimension W1 of the hollow portion forming sheet 7.
[0082] また前記第 1のシートの前記幅寸法 W5と前記第 2のシート 6の前記幅寸法 W2とも 同じ幅寸法で形成されている。そして、前記中間シート 9の前記幅寸法 W3および前 記中間シート 10の前記幅寸法 W4と、前記第 1のシート 5の前記幅寸法 W5および前 記第 2のシート 6の前記幅寸法 W6とは、それぞれ同じ幅寸法で形成されて 、る。  Further, the width dimension W5 of the first sheet and the width dimension W2 of the second sheet 6 are formed to have the same width dimension. The width dimension W3 of the intermediate sheet 9, the width dimension W4 of the intermediate sheet 10, and the width dimension W5 of the first sheet 5 and the width dimension W6 of the second sheet 6 are defined. Each is formed with the same width dimension.
[0083] 図 5に示すように、前記第 1のシート 5と前記中間シート 9との間には第 7接合層 31 が形成されており、この第 7接合層 31を介して前記第 1のシート 5と前記中間シート 9 とが接合されている。また、前記第 2のシート 6と前記中間シート 10との間には第 8接 合層 32が形成されており、この第 8接合層 32を介して前記第 2のシート 6と前記中間 シート 10とが接合されて 、る。  As shown in FIG. 5, a seventh bonding layer 31 is formed between the first sheet 5 and the intermediate sheet 9, and the first bonding layer 31 is interposed through the seventh bonding layer 31. The sheet 5 and the intermediate sheet 9 are joined. Further, an eighth bonding layer 32 is formed between the second sheet 6 and the intermediate sheet 10, and the second sheet 6 and the intermediate sheet 10 are interposed via the eighth bonding layer 32. And are joined.
[0084] 図 5に示すように、前記中間シート 9の下方側（図示 Z2側）には、前記中間シートの 下面 9bと接して第 9接合層 33が形成されている。図 5に示すように、前記中空部形 成シート 7と第 9接合層 33とは上下方向（図示 Z1—Z2方向）で対向する位置関係で 形成されている。この中空部 2では、前記中空部形成シート 7と前記第 9接合層 33と は接合されておらず、前記中空部形成シート 7と前記第 9接合層 33との間に中空部 2 が形成されている。すなわち図 5に示すように、前記中空部 2は前記中空部形成シー ト 7と前記中間シート 9との間に位置するように形成されている。 As shown in FIG. 5, a ninth bonding layer 33 is formed on the lower side (Z2 side in the drawing) of the intermediate sheet 9 in contact with the lower surface 9b of the intermediate sheet. As shown in FIG. 5, the hollow portion forming sheet 7 and the ninth joining layer 33 are formed so as to face each other in the up-down direction (Z1-Z2 direction in the drawing). In this hollow portion 2, the hollow portion forming sheet 7 and the ninth bonding layer 33 are not bonded, and the hollow portion 2 is interposed between the hollow portion forming sheet 7 and the ninth bonding layer 33. Is formed. That is, as shown in FIG. 5, the hollow portion 2 is formed so as to be positioned between the hollow portion forming sheet 7 and the intermediate sheet 9.
[0085] 図 5に示すように、前記第 9接合層 33の下面 33bには、前記中空部形成シート 7の 側方力も前記中空部形成シート 7の下面 7bにかけて第 4接合層 14が形成されている 。また前記第 4接合層 14は、前記中間シート 10の上面 10aに接するように形成され ている。したがって、前記中空部形成シート 7と前記中間シート 10とが前記第 4接合 層 14を介して接合されるとともに、中間シート 10と前記第 9接合層 33とが前記第 4接 合層 14を介して接合されている。図 4に示すように、前記第 4接合層 14を介して前記 第 1のシート 5と前記第 2のシート 6とが接合されている部分には、接合領域 24が形成 されている。 As shown in FIG. 5, the fourth bonding layer 14 is formed on the lower surface 33b of the ninth bonding layer 33 so that the lateral force of the hollow portion forming sheet 7 is also applied to the lower surface 7b of the hollow portion forming sheet 7. ing . The fourth bonding layer 14 is formed so as to be in contact with the upper surface 10 a of the intermediate sheet 10. Therefore, the hollow portion forming sheet 7 and the intermediate sheet 10 are bonded via the fourth bonding layer 14, and the intermediate sheet 10 and the ninth bonding layer 33 are bonded via the fourth bonding layer 14. Are joined. As shown in FIG. 4, a bonding region 24 is formed in a portion where the first sheet 5 and the second sheet 6 are bonded via the fourth bonding layer 14.
[0086] 図 5に示す前記接合領域 24が、図 1に示す前記接合部 3a、 3bを構成している。  [0086] The joint region 24 shown in FIG. 5 constitutes the joints 3a and 3b shown in FIG.
図 5に示す中空体 301でも、大きな設備やスペースを必要としな 、で製造すること が可能となるとともに、シビアな精度管理を行わなくても前記中空体 301を製造するこ とができるため、全体として容易に製造を行うことができる。  The hollow body 301 shown in FIG. 5 can be manufactured without requiring large equipment and space, and the hollow body 301 can be manufactured without severe precision control. Manufacturing as a whole can be easily performed.
[0087] また前記第 7接合層 31、前記第 8接合層 32、前記第 9接合層 33は、例えば比較的 溶融温度の低 ヽ低密度 PE (LDPE)で構成すると、接合層として優れた機能を発揮 できるため好ましい。 [0087] Further, when the seventh bonding layer 31, the eighth bonding layer 32, and the ninth bonding layer 33 are made of, for example, a relatively low melting point low-density PE (LDPE), an excellent function as a bonding layer Is preferable.
[0088] 図 6は、本発明の中空体の第 5実施形態を示す斜視図である。 FIG. 6 is a perspective view showing a fifth embodiment of the hollow body of the present invention.
図 6に示す中空体 401は、図 1に示す前記中空体 1と同じ構成要素を有して構成さ れている。したがって、図 6に示す中空体 401の構成要素のうち、図 1に示す前記中 空体 1と同じ構成要素については同じ符号を付して、詳しい説明を省略する。  A hollow body 401 shown in FIG. 6 has the same components as the hollow body 1 shown in FIG. Accordingly, among the constituent elements of the hollow body 401 shown in FIG. 6, the same constituent elements as those of the hollow body 1 shown in FIG.
[0089] 図 6に示すように、前記中空体 401は、中空部 402Aと 402B力 幅方向（図示 XI[0089] As shown in FIG. 6, the hollow body 401 includes hollow portions 402A and 402B in the force width direction (illustrated XI
—X2方向）に所定の間隔を空けて 2つ並んで形成されている。前記中空部 402Aは—X2 direction) are formed side by side at a predetermined interval. The hollow portion 402A is
、前記中空体 401の長手方向に向力つて延びており、前端で開口部 404Aaを有す る開放端として形成されており、また後端で開口部 404Abを有する開放端として形 成されている。 The hollow body 401 extends in the longitudinal direction, is formed as an open end having an opening 404Aa at the front end, and is formed as an open end having an opening 404Ab at the rear end. .
[0090] また前記中空部 402Bは、前記中空体 101の長手方向に向かって延びており、前 端で開口部 404Baを有する開放端として形成されており、また後端で開口部 404Bb を有する開放端として形成されて 、る。 Further, the hollow portion 402B extends in the longitudinal direction of the hollow body 101, is formed as an open end having an opening 404Ba at the front end, and has an opening 404Bb at the rear end. Formed as an open end.
[0091] また、 2つの前記中空部 402Aと 402Bとの間には接合部 3cが形成されている。こ の接合部 3cは、所定の幅寸法を有して長手方向（図示 Y1— Y2方向）に延びて形成 されている。  [0091] Further, a joint 3c is formed between the two hollow portions 402A and 402B. The joint 3c has a predetermined width dimension and is formed to extend in the longitudinal direction (Y1-Y2 direction in the drawing).
[0092] 図 7は図 6に示す中空体を VII— VII線で切断した切断断面を模式的に示す断面 図である。図 7に示す前記中空体 401は、図 1および図 2に示す前記中空体 1と同じ 構成要素を有して構成されている。したがって、図 7に示す前記中空体 401の構成 要素のうち、図 1および図 2に示す前記中空体 1と同じ構成要素には、前記中空体 1 と同じ符号を付して、その詳しい説明を省略する。  FIG. 7 is a cross-sectional view schematically showing a cut cross section of the hollow body shown in FIG. 6 taken along line VII-VII. The hollow body 401 shown in FIG. 7 has the same components as the hollow body 1 shown in FIGS. Therefore, among the components of the hollow body 401 shown in FIG. 7, the same components as those of the hollow body 1 shown in FIGS. Omitted.
[0093] 図 7に示すように、前記中空体 401は、図示上方側（図示 Z1方向側）の外側に位置 する第 1のシート 5と、この第 1のシート 5の下方側（図示 Z2方向側）の外側に位置す る第 2のシート 6、および前記第 1のシート 5と前記第 2のシート 6の間に介装された 2 枚の中空部形成シート 407A、 407Bを有している。図 7に示すように、前記中空部形 成シート 407Aと 407Bとは、幅方向に所定間隔を空けて並んで配置されている。  [0093] As shown in FIG. 7, the hollow body 401 includes a first sheet 5 positioned on the outer side of the upper side in the figure (Z1 direction side in the figure), and a lower side (in the Z2 direction in the figure) of the first sheet 5 A second sheet 6 located on the outer side, and two hollow portion forming sheets 407A and 407B interposed between the first sheet 5 and the second sheet 6 . As shown in FIG. 7, the hollow portion forming sheets 407A and 407B are arranged side by side at a predetermined interval in the width direction.
[0094] 図 7に示すように、前記中空体 401では、前記中空部形成シート 407A、 407Bと、 前記第 1のシート 5との間に中間シート 9が形成されている。また前記中空部形成シ ート 407A、 407Bと前記第 2のシート 6との間に中間シート 10が形成されている。  As shown in FIG. 7, in the hollow body 401, an intermediate sheet 9 is formed between the hollow portion forming sheets 407 A and 407 B and the first sheet 5. An intermediate sheet 10 is formed between the hollow portion forming sheets 407 A and 407 B and the second sheet 6.
[0095] 図 7に示すように、前記中空体 401では、前記中間シート 9の幅寸法 W3と前記中 間シート 10の幅寸法 W4とが同じ幅寸法で形成されて!、る。  As shown in FIG. 7, in the hollow body 401, the width dimension W3 of the intermediate sheet 9 and the width dimension W4 of the intermediate sheet 10 are formed with the same width dimension.
[0096] また前記第 1のシートの前記幅寸法 W5と前記第 2のシート 6の前記幅寸法 W2とも 同じ幅寸法で形成されている。そして、前記中間シート 9の前記幅寸法 W3および前 記中間シート 10の前記幅寸法 W4と、前記第 1のシート 5の前記幅寸法 W5および前 記第 2のシート 6の前記幅寸法 W6とは、それぞれ同じ幅寸法で形成されて 、る。  [0096] The width dimension W5 of the first sheet and the width dimension W2 of the second sheet 6 are formed to have the same width dimension. The width dimension W3 of the intermediate sheet 9, the width dimension W4 of the intermediate sheet 10, and the width dimension W5 of the first sheet 5 and the width dimension W6 of the second sheet 6 are defined. Each is formed with the same width dimension.
[0097] 図 7に示す前記中空体 401では、図 5に示す前記中空体 301と同様に、前記第 1 のシート 5と前記中間シート 9との間には第 7接合層 31が形成されており、この第 7接 合層 31を介して前記第 1のシート 5と前記中間シート 9とが接合されている。また、前 記第 2のシート 6と前記中間シート 10との間には第 8接合層 32が形成されており、こ の第 8接合層 32を介して前記第 2のシート 6と前記中間シート 10とが接合されている [0098] 図 7に示す前記中空体 401では、図 5に示す前記中空体 301と同様に、前記中間 シート 9の下方側（図示 Z2側）には、前記中間シートの下面 9bと接して第 9接合層 33 が形成されている。図 7に示すように、前記中空部形成シート 407A、 407Bと第 9接 合層 33とは上下方向（図示 Zl—Z2方向）で対向する位置関係で形成されている。 前記中空部 402A、 402Bでは、前記中空部形成シート 407A、 407Bと前記第 9接 合層 33とは接合されておらず、前記中空部形成シート 407A、 407Bと前記第 9接合 層 33との間に前記中空部 402A、 402Bが形成されている。すなわち図 7に示すよう に、前記中空部 402Aは前記中空部形成シート 407Aと前記中間シート 9との間に位 置するように形成されており、前記中空部 402Bは前記中空部形成シート 407Bと前 記中間シート 9との間に位置するように形成されている。 In the hollow body 401 shown in FIG. 7, as in the hollow body 301 shown in FIG. 5, a seventh bonding layer 31 is formed between the first sheet 5 and the intermediate sheet 9. The first sheet 5 and the intermediate sheet 9 are bonded to each other through the seventh bonding layer 31. Further, an eighth bonding layer 32 is formed between the second sheet 6 and the intermediate sheet 10, and the second sheet 6 and the intermediate sheet are interposed through the eighth bonding layer 32. 10 is joined In the hollow body 401 shown in FIG. 7, as in the hollow body 301 shown in FIG. 5, the lower side (Z2 side in the figure) of the intermediate sheet 9 is in contact with the lower surface 9b of the intermediate sheet. 9 The junction layer 33 is formed. As shown in FIG. 7, the hollow portion forming sheets 407A and 407B and the ninth bonding layer 33 are formed so as to face each other in the vertical direction (Zl-Z2 direction in the drawing). In the hollow portions 402A and 402B, the hollow portion forming sheets 407A and 407B and the ninth bonding layer 33 are not bonded, and the hollow portion forming sheets 407A and 407B and the ninth bonding layer 33 are not bonded. The hollow portions 402A and 402B are formed in the same. That is, as shown in FIG. 7, the hollow portion 402A is formed so as to be positioned between the hollow portion forming sheet 407A and the intermediate sheet 9, and the hollow portion 402B is formed with the hollow portion forming sheet 407B. It is formed so as to be positioned between the intermediate sheet 9.
[0099] 図 7に示すように、前記第 9接合層 33の下面 33bには、前記中空部形成シート 407 Aの側方から下面 407Abにかけて、および前記中空部形成シート 407Bの側方から 下面 407Bbにかけて第 4接合層 14が形成されている。また、この第 4接合層 14は、 前記中空部形成シート 407Aと 407Bとの間にも、前記中空部形成シート 407Aおよ び 407Bの側方力も前記第 9接合層 33の前記下面 33bにかけて形成されている。  [0099] As shown in FIG. 7, the lower surface 33b of the ninth bonding layer 33 is formed from the side of the hollow portion forming sheet 407A to the lower surface 407Ab and from the side of the hollow portion forming sheet 407B to the lower surface 407Bb. Thus, the fourth bonding layer 14 is formed. The fourth bonding layer 14 is also formed between the hollow portion forming sheets 407A and 407B, and the lateral force of the hollow portion forming sheets 407A and 407B is also applied to the lower surface 33b of the ninth bonding layer 33. Has been.
[0100] また前記第 4接合層 14は、前記中間シート 10の上面 10aに接するように形成され ている。したがって、前記中空部形成シート 407Aおよび 407Bと前記中間シート 10 とが前記第 4接合層 14を介して接合されるとともに、中間シート 10と前記第 9接合層 33とが前記第 4接合層 14を介して接合されている。図 7に示すように、前記第 4接合 層 14を介して前記第 1のシート 5と前記第 2のシート 6とが接合されている部分には、 接合領域 24が形成されて 、る。  [0100] The fourth bonding layer 14 is formed in contact with the upper surface 10a of the intermediate sheet 10. Therefore, the hollow portion forming sheets 407A and 407B and the intermediate sheet 10 are bonded via the fourth bonding layer 14, and the intermediate sheet 10 and the ninth bonding layer 33 connect the fourth bonding layer 14. Are joined through. As shown in FIG. 7, a bonding region 24 is formed at a portion where the first sheet 5 and the second sheet 6 are bonded via the fourth bonding layer 14.
図 7に示す前記接合領域 24が、図 6に示す前記接合部 3a、 3b、 3cを構成している  The joining region 24 shown in FIG. 7 constitutes the joining parts 3a, 3b, and 3c shown in FIG.
[0101] 図 7に示す中空体 401でも、大きな設備やスペースを必要としないで製造すること が可能となるとともに、シビアな精度管理を行わなくても前記中空体 401を製造するこ とができるため、全体として容易に製造を行うことができる。 [0101] The hollow body 401 shown in Fig. 7 can also be manufactured without requiring large equipment and space, and the hollow body 401 can be manufactured without severe precision control. Therefore, it can manufacture easily as a whole.
[0102] また、前記中空体 401では、前記中空部 402Aと 402Bとが、幅方向に所定間隔を 空けて並んで形成されて 、るため、例えば前記中空体 401をホースとして使用する 場合に、前記中空部 402Aと 402Bとで、異なる被搬送物を搬送することが可能とな る。また、袋体として使用した場合には、前記中空部 402Aと 402Bとで、異なる被梱 包物を梱包することが可能となる。 [0102] Further, in the hollow body 401, the hollow portions 402A and 402B have a predetermined interval in the width direction. For example, when the hollow body 401 is used as a hose, different objects can be transported by the hollow portions 402A and 402B. Further, when used as a bag body, it is possible to pack different packages to be packed in the hollow portions 402A and 402B.
[0103] また前記中空部形成シート 407Aおよび 407Bは、例えば低密度 PEで構成するこ とができる。この場合、例えば、防鲭包装材として前記中空体 1を使用する場合には 、前記中空部形成シート 7および 8に防鲭剤を混合するなど、用途に応じて添加剤を 混合することちでさる。 [0103] The hollow portion forming sheets 407A and 407B can be made of, for example, low density PE. In this case, for example, when the hollow body 1 is used as a fender wrapping material, an antibacterial agent is mixed with the hollow portion forming sheets 7 and 8, and an additive is mixed depending on the application. Monkey.
[0104] 図 8は、本発明のシート体を示す斜視図である。図 8に示すシート体 601は、下層シ ート 602と、この下層シート 602の上方側（図示 Z1方向側）に重ねて形成された上層 シート 603とを有して構成されて 、る。  FIG. 8 is a perspective view showing a sheet body of the present invention. A sheet body 601 shown in FIG. 8 includes a lower layer sheet 602 and an upper layer sheet 603 formed on the upper side (Z1 direction side in the drawing) of the lower layer sheet 602.
[0105] 図 8に示す実施形態では、前記下層シート 602の上方側から見た平面形状は、前 記シート体 601の長手方向（図示 Y1— Y2方向）に延びる長方形に形成されている。 また前記上層シート 603も前記シート体 601の長手方向に向かって延びる長方形に 形成されている。  In the embodiment shown in FIG. 8, the planar shape viewed from above the lower layer sheet 602 is formed into a rectangle extending in the longitudinal direction (Y1—Y2 direction in the drawing) of the sheet body 601. The upper layer sheet 603 is also formed in a rectangular shape extending in the longitudinal direction of the sheet body 601.
[0106] 図 8に示すように、前記上層シート 603は、第 1のシート半体 604と第 2のシート半体 605とで構成されている。前記第 1のシート半体 204と前記第 2のシート半体 205は、 前記下層シート 602の上面 602aに、前記シート体 601の幅方向（図示 XI— X2方向 )に並んで接合されている。  As shown in FIG. 8, the upper layer sheet 603 includes a first sheet half 604 and a second sheet half 605. The first sheet half 204 and the second sheet half 205 are joined to the upper surface 602a of the lower layer sheet 602 side by side in the width direction (XI-X2 direction in the drawing) of the sheet body 601.
[0107] 図 5に示すように、前記第 1のシート半体 604は、内側端 604cと外側端 604dと、前 端 604hと後端 604iを有して 、る。  As shown in FIG. 5, the first sheet half 604 has an inner end 604c, an outer end 604d, a front end 604h, and a rear end 604i.
[0108] また、前記前記第 2のシート半体 605は、外側端 605cと内側端 605dと、前端 605 hと後端 605iを有している。  In addition, the second sheet half 605 has an outer end 605c, an inner end 605d, a front end 605h, and a rear end 605i.
[0109] 図 8に示すように、前記下層シート 602の前端 602hと、前記第 1のシート半体 604 の前端 604hおよび前記第 2のシート半体 605の前端 605hとは、上下方向（図示 Z1 Z2方向）で対向するように形成されている。また、前記下層シート 602の後端 602i と、前記第 1のシート半体 604の後端 604iおよび前記第 2のシート半体 605の後端 6 05iとは、上下方向で対向するように形成されている。 [0110] また、前記下層シート 602の一方の側端 602cと、前記第 2のシート半体 605の外側 端 205cとは、上下方向で対向するように形成されている。また、前記下層シート 602 の外側端 602dと、前記第 1のシート半体 604の外側端 604dとは、上下方向で対向 するように形成されている。 As shown in FIG. 8, the front end 602h of the lower layer sheet 602, the front end 604h of the first sheet half 604, and the front end 605h of the second sheet half 605 are in the vertical direction (Z1 in the figure). Z2 direction). Further, the rear end 602i of the lower layer sheet 602, the rear end 604i of the first sheet half body 604, and the rear end 6 05i of the second sheet half body 605 are formed to face each other in the vertical direction. ing. [0110] Also, one side end 602c of the lower layer sheet 602 and the outer end 205c of the second sheet half 605 are formed to face each other in the vertical direction. The outer end 602d of the lower layer sheet 602 and the outer end 604d of the first sheet half 604 are formed so as to face each other in the vertical direction.
[0111] このような位置関係で、前記第 1のシート半体 604および前記第 2のシート半体 605 1S 前記下層シート 602の前記上面 602aの全面に接合されて 、る。  [0111] With such a positional relationship, the first sheet half 604 and the second sheet half 6051S are bonded to the entire upper surface 602a of the lower layer sheet 602.
[0112] 図 8に示すように、前記第 1のシート半体 604の前記内側端 604c側に形成された 内側端領域 604eと、前記第 2のシート半体 605の前記内側端 605d側に形成された 内側端領域 605eは、折り曲げ線 610、 611によって谷折りにされ、前記下層シート 6 02の前記上面 602aに対して上方側に折り曲げられている。そして、前記第 1のシー ト半体 604の前記内側端領域 604eと前記第 2のシート半体 605の前記内側端領域 605eとが接合されて接合部 603aを構成している。この接合部 603aは、前記シート 体 601の前端 601 aから後端 601 bまで連続して形成されて 、る。  As shown in FIG. 8, an inner end region 604e formed on the inner end 604c side of the first sheet half 604 and an inner end 605d side of the second sheet half 605 are formed. The inner end region 605e is valley-folded by folding lines 610 and 611 and is bent upward with respect to the upper surface 602a of the lower layer sheet 6002. The inner end region 604e of the first sheet half 604 and the inner end region 605e of the second sheet half 605 are joined to form a joined portion 603a. The joint 603a is formed continuously from the front end 601a to the rear end 601b of the sheet body 601.
[0113] 前記シート体 601では、前記下層シート 602が複数のシートが積層されたシート積 層体として構成されている。図 8に示す前記シート体 601では、前記下層シート 602 を構成するシート積層体の積層構造が以下のように構成されている。すなわち、図 2 ないし図 5に示す前記中空体 1、 101、 201、 301の前記中空部 2を、図 2ないし図 5 に示す切断線 C— C線で切断し、この切断端面 C1を、それぞれ上方向（各図示 Z1 方向）に向力 て開くとともに、切断端面 C2を、それぞれ下方向（各図示 Z2方向）に 向かって開いたときに、前記切断線 C C線の上方向側に位置する前記中空部形成 シート 7、 207、前記中間シート 9が前記下層シート半体 602Bを構成する前記シート 積層体を構成することになる。また、前記切断線 C— C線の下方向側に位置する前 記中空部形成シート 8、 208、前記中間シート 10が前記下層シート半体 602Aを構 成する前記シート積層体を形成することになる。  In the sheet body 601, the lower layer sheet 602 is configured as a sheet stack body in which a plurality of sheets are laminated. In the sheet body 601 shown in FIG. 8, the laminated structure of the sheet laminate constituting the lower layer sheet 602 is configured as follows. That is, the hollow portions 2 of the hollow bodies 1, 101, 201, 301 shown in FIGS. 2 to 5 are cut along a cutting line C—C shown in FIGS. 2 to 5, and the cut end faces C1 are respectively cut. When the cutting end face C2 is opened downward (each Z2 direction), and is opened upward (each Z1 direction shown), the cutting line CC line is located above the cutting line CC line. The hollow portion forming sheets 7, 207 and the intermediate sheet 9 constitute the sheet laminate constituting the lower layer sheet half 602B. In addition, the hollow portion forming sheets 8 and 208 and the intermediate sheet 10 positioned on the lower side of the cutting line C-C form the sheet laminate constituting the lower layer sheet half 602A. Become.
[0114] また、図 8に示す前記シート体 601では、図 2ないし図 5に示す前記中空体 1、 101 、 201、 301の前記第 1のシート 5が図 8に示す前記上層シート 603を構成する前記 第 2のシート半体 605を構成し、前記第 2のシート 6が図 8に示す前記上層シート 603 を構成する前記第 1のシート半体 604を構成する。 [0115] あるいは図 8に示す前記下層シート 602を、図 9に示すシート積層体 504と 505とで 構成しても良い。図 9にはシート積層体 500を幅方向に切断した切断段断面を示し ているが、図 9に示す図では、前記シート積層体 500を図 8に示す第 1の下層シート 半体 602Aと第 2の下層シート半体 602Bの内側どうし力 互いに対向する状態に折 り曲げて模式的に図示している。 Also, in the sheet body 601 shown in FIG. 8, the first sheet 5 of the hollow bodies 1, 101, 201, 301 shown in FIGS. 2 to 5 constitutes the upper layer sheet 603 shown in FIG. The second sheet half 605 is constituted, and the second sheet 6 constitutes the first sheet half 604 constituting the upper sheet 603 shown in FIG. Alternatively, the lower layer sheet 602 shown in FIG. 8 may be composed of sheet laminates 504 and 505 shown in FIG. FIG. 9 shows a cut step cross-section obtained by cutting the sheet laminate 500 in the width direction. In the diagram shown in FIG. 9, the sheet laminate 500 is divided into the first lower-layer sheet half 602A shown in FIG. The inner side forces of the second lower sheet half 602B are schematically illustrated by being folded so as to face each other.
[0116] 図 9に示すように、前記シート積層体 500は、図 1および図 2に示す前記中空体 1と 同じ構成要素を有して構成されている。したがって、図 9に示す前記シート積層体 50 0の構成要素のうち、図 1および図 2に示す前記中空体 1と同じ構成要素には、前記 中空体 1と同じ符号を付して、その詳しい説明を省略する。  [0116] As shown in FIG. 9, the sheet laminate 500 has the same components as the hollow body 1 shown in FIGS. Therefore, among the constituent elements of the sheet laminate 500 shown in FIG. 9, the same constituent elements as those of the hollow body 1 shown in FIGS. Description is omitted.
[0117] 図 9に示すように、前記シート積層体 500は、図示上方側（図示 Z1方向側）の外側 に位置する第 1のシート 5と、この第 1のシート 5の下方側（図示 Z2方向側）の外側に 位置する第 2のシート 6、および前記第 1のシート 5と前記第 2のシート 6の間に介装さ れた 1枚の折り曲げシート 503を有している。  [0117] As shown in Fig. 9, the sheet laminate 500 includes a first sheet 5 positioned on the outer side of the upper side in the figure (Z1 direction side in the figure) and a lower side of the first sheet 5 (Z2 in the figure). A second sheet 6 positioned on the outer side of the direction side), and one folded sheet 503 interposed between the first sheet 5 and the second sheet 6.
[0118] 前記折り曲げシート 503は幅方向を 2分する中央部で折り曲げられ、両側端部 503 cと 503dとが上下方向（図示 Z1— Z2方向）で互いに対向するように折り曲げられて いる。  [0118] The folding sheet 503 is bent at the center portion that bisects the width direction, and both side end portions 503c and 503d are bent so as to face each other in the vertical direction (Z1-Z2 direction in the drawing).
[0119] 図 9に示すように、前記シート積層体 500では、前記折り曲げシート 503と前記第 1 のシート 5との間に、第 7接合層 31を介して中間シート 9が形成されている。また前記 折り曲げシート 503と前記第 2のシート 6との間に、第 8接合層 32を介して中間シート 10が形成されている。  As shown in FIG. 9, in the sheet laminate 500, an intermediate sheet 9 is formed between the bent sheet 503 and the first sheet 5 via a seventh bonding layer 31. Further, an intermediate sheet 10 is formed between the bent sheet 503 and the second sheet 6 via an eighth bonding layer 32.
[0120] そして、前記中間シート 10の上面 10aには、第 10接合層 34が形成されている。  [0120] On the upper surface 10a of the intermediate sheet 10, a tenth bonding layer 34 is formed.
図 9に示すように、前記第 10接合層 34の上には、第 10接合層 34の上面 34aに前 記折り曲げシート 503の折り曲げ下面 503b表面が接する状態で、前記折り曲げシー ト 503が形成されている。したがって、前記折り曲げシート 503の前記折り曲げ下面 5 03bが前記第 10接合層 34を介して、前記中間シート 10と接続されている。  As shown in FIG. 9, the folded sheet 503 is formed on the tenth bonding layer 34 in a state where the surface of the bent lower surface 503b of the bent sheet 503 is in contact with the upper surface 34a of the tenth bonding layer 34. ing. Therefore, the folded lower surface 5 03b of the folded sheet 503 is connected to the intermediate sheet 10 via the tenth bonding layer 34.
[0121] 図 9に示すように、前記第 10接合層 34の上面 34aには、前記折り曲げシート 503の 側方力も前記折り曲げ上面 503a表面にかけて、第 4接合層 14が形成されている。ま た、前記第 4接合層 14は、前記中間シート 9の下面 9bに接するように形成されている 。したがって、前記折り曲げシート 503の折り曲げ上面 503aと前記中間シート 9が前 記第 4接合層 14を介して接合されるとともに、前記中間シート 9と前記中間シート 10と 力 前記第 4接合層 14および前記第 10接合層 34を介して接合されている。 As shown in FIG. 9, the fourth bonding layer 14 is formed on the upper surface 34a of the tenth bonding layer 34 so that the lateral force of the bent sheet 503 is also applied to the surface of the bent upper surface 503a. The fourth bonding layer 14 is formed so as to be in contact with the lower surface 9b of the intermediate sheet 9. . Therefore, the folded upper surface 503a of the folded sheet 503 and the intermediate sheet 9 are bonded via the fourth bonding layer 14, and the intermediate sheet 9, the intermediate sheet 10, and the force The fourth bonding layer 14 and the Bonded via the tenth bonding layer 34.
[0122] 前記折り曲げシート 503の幅寸法 W7は、前記中間シート 9の幅寸法 W3よりも小さ く形成されており、前記中間シート 9の前記下面 9bの側端部領域 9blには、前記折り 曲げシート 503が対向していない。また、前記折り曲げシート 503の前記側端部領域 9bl側の側方には、前記第 4接合層 14が形成される。  [0122] A width dimension W7 of the folding sheet 503 is formed to be smaller than a width dimension W3 of the intermediate sheet 9, and the side sheet region 9bl of the lower surface 9b of the intermediate sheet 9 Sheet 503 is not facing. Further, the fourth bonding layer 14 is formed on the side of the bent sheet 503 on the side end region 9bl side.
[0123] 図 9に示すシート積層体 500では、前記中間シート 9と前記折り曲げシート 503の前 記折り曲げ上面 503aとがシート積層体 504を構成し、前記中間シート 10と前記折り 曲げ下面 503bとがシート積層体 505を構成する。  In the sheet laminate 500 shown in FIG. 9, the intermediate sheet 9 and the folded upper surface 503a of the folded sheet 503 constitute a sheet laminated body 504, and the intermediate sheet 10 and the folded lower surface 503b are combined. A sheet laminate 505 is formed.
[0124] 図 9に示す前記シート積層体 500では、シート積層体 504を図示上方向（図示 Z1 方向）に向力つて開くとともに、シート積層体 505を図示下方向（図示 Z2方向）に向か つて開いたときに、図示仮想境界線 D—D線の上方向側に位置するシート積層体 50 4が前記下層シート 602の前記下層シート半体 502Bを構成するとともに、前記仮想 境界線 D— D線の下方向側に位置するシート積層体 505が前記下層シート 602を構 成する下層シート半体 602Aを構成する。  [0124] In the sheet laminate 500 shown in Fig. 9, the sheet laminate 504 is opened by force in the upward direction in the figure (Z1 direction in the figure), and the sheet laminate 505 is directed in the downward direction in the figure (Z2 direction in the figure). When opened, the sheet laminate 50 4 positioned on the upper side of the illustrated virtual boundary line D—D constitutes the lower sheet half body 502B of the lower layer sheet 602 and the virtual boundary line D—D. A sheet laminate 505 positioned on the lower side of the line constitutes a lower sheet half 602A constituting the lower sheet 602.
[0125] また、図 8に示す前記シート体 601では、図 9に示す前記シート積層体 500の前記 第 1のシート 5が図 8に示す前記上層シート 603を構成する前記第 2のシート半体 60 5を構成し、前記第 2のシート 6が図 8に示す前記上層シート 603を構成する前記第 1 のシート半体 604を構成する。  Also, in the sheet body 601 shown in FIG. 8, the second sheet half body in which the first sheet 5 of the sheet laminate 500 shown in FIG. 9 constitutes the upper layer sheet 603 shown in FIG. 605 and the second sheet 6 constitutes the first sheet half 604 constituting the upper layer sheet 603 shown in FIG.
[0126] 本発明のシート体 601では、前記 Tダイによって前記各シート 5、 6、 7、 8、 9、 10、 あるいは前記折り曲げシート 503を積層し、これを開くだけで、前記中空体 1、 101、 201、 301、あるいは前記シート積層体 500の約 2倍の大きさの幅寸法を有するシー ト体 601を製造することができる。  In the sheet body 601 of the present invention, each of the sheets 5, 6, 7, 8, 9, 10, or the folded sheet 503 is laminated by the T die, and the hollow body 1, A sheet body 601 having a width dimension about 101, 201, 301 or about twice as large as the sheet laminate 500 can be manufactured.
[0127] したがって、低廉な製造コストで製造することができるとともに、製造スペースの確保 を容易にすることができる。  [0127] Accordingly, it is possible to manufacture at a low manufacturing cost and to easily secure a manufacturing space.
[0128] 以下に図 2ないし図 7に示す前記中空体 1、 101、 201、 301401の製造方法を説 明する。 [0129] 図 10には、前記中空体 1、 101、 201、 301、 401を製造するための製造装置と、こ の製造装置を用いた中空体の製造工程を示している。 [0128] A method for producing the hollow bodies 1, 101, 201, 301401 shown in FIGS. 2 to 7 will be described below. FIG. 10 shows a manufacturing apparatus for manufacturing the hollow bodies 1, 101, 201, 301, 401 and a manufacturing process of the hollow body using this manufacturing apparatus.
[0130] 以下には、まず図 10を用いて、前記製造装置 800と、この製造装置 800を用いた 前記中空体 1の製造方法を概略的に説明し、その後に前記中空体 1、 101、 201、 3[0130] In the following, the manufacturing apparatus 800 and a method for manufacturing the hollow body 1 using the manufacturing apparatus 800 will be schematically described with reference to FIG. 201, 3
01、 401の製造工程を具体的に詳しく説明する。 The manufacturing process of 01 and 401 will be described in detail.
[0131] 図 10に示す製造装置 800は、搬送ロール 801aと搬送装置 801bとを有するコンペ ァ 801と、接合層塗布機構 810とを有している。前記接合層塗布機構 810は、ホッパA manufacturing apparatus 800 shown in FIG. 10 includes a comparator 801 having a transport roll 801a and a transport apparatus 801b, and a bonding layer coating mechanism 810. The bonding layer application mechanism 810 includes a hopper
802が設置された溶融押出し機 803と、この溶融押出し器 803に連設されている Tダ ィ 804と力 構成されて 、る。 A melt extruder 803 provided with 802 and a T-die 804 connected to the melt extruder 803 are configured as a force.
[0132] 図 10に示すように、搬送装置 801b上に、シート体 830が載置される。 As shown in FIG. 10, the sheet body 830 is placed on the transport device 801b.
そして、前記搬送装置 801bが前記搬送ロールの回転駆動力によって図示 Y1側か ら Y2側に向って一定の速度で連続的に移動することによって、前記搬送装置 801b 上に載置された前記シート体 830も図示 Y1側から Y2側へ搬送される。  Then, the sheet body placed on the conveying device 801b is moved by the conveying device 801b continuously moving at a constant speed from the Y1 side to the Y2 side in the figure by the rotational driving force of the conveying roll. 830 is also conveyed from the Y1 side to the Y2 side.
[0133] 前記コンベア 801上に設置されている溶融押出し機 803では、その上部に設置さ れているホッパ 802に、接合層 831を形成する榭脂材料 820が投入される。この榭脂 材料 820は、前記接合層 831を形成するためのものであり、例えばポリエチレン榭脂 材料である。 [0133] In the melt extruder 803 installed on the conveyor 801, the resin material 820 for forming the bonding layer 831 is put into the hopper 802 installed on the top thereof. This resin material 820 is for forming the bonding layer 831, and is, for example, a polyethylene resin material.
[0134] 前記ホッパ 802に投入された前記榭脂材料 820は、 Tダイ 804を用いた溶融押し 出し法によって前記接合層 831とされる。  The resin material 820 charged into the hopper 802 is used as the bonding layer 831 by a melt extrusion method using a T die 804.
[0135] ここで本明細書にぉ 、て「Tダイを用いた溶融押し出し法」とは、ダイアダプタを取り 付けると Τ字形状になるダイを溶融押し出し機に設置して、溶融榭脂を押し出して榭 脂をシート状に成型する加工方法を意味する。 [0135] Here, in the present specification, the term "melt extrusion method using a T die" means that a die that becomes a U-shape when a die adapter is attached is placed in a melt extruder, and molten resin is removed. It means a processing method to extrude and form a resin into a sheet.
[0136] 図 10に示すように、前記榭脂材料 820は、前記溶融押出し機 803によって、加熱さ れ溶融されて混練されて押し出され、前記 Τダイ 804に形成されたスリットからシート 状に成型されながら、前記シート体 830の上に押し出されて、前記接合層 831とされ る。 As shown in FIG. 10, the resin material 820 is heated, melted, kneaded and extruded by the melt extruder 803, and is molded into a sheet from a slit formed in the paddy die 804. While being pushed out, the sheet body 830 is pushed out to form the bonding layer 831.
[0137] 前記製造装置 800では、前記接合層塗布機構 810によって前記シート体 830の上 に前記接合層 831が形成された直後に、ガイドロール 840を通過して前記接合層 83 1の上に、他のシート体 832が供給される。このようにして、前記シート体 830の上に、 前記接合層 831を介して、前記シート体 832が接合される。すなわち、前記シート体 830と 832とは、前記榭脂材料 820で形成される接合層 831による溶融押し出しラミ ネート法によって接合される。 [0137] In the manufacturing apparatus 800, immediately after the bonding layer 831 is formed on the sheet body 830 by the bonding layer application mechanism 810, the bonding layer 83 passes through the guide roll 840. On 1, another sheet body 832 is supplied. In this way, the sheet body 832 is bonded onto the sheet body 830 via the bonding layer 831. That is, the sheet bodies 830 and 832 are joined by a melt extrusion lamination method using a joining layer 831 formed of the resin material 820.
[0138] 前記中空体 1は、前記製造装置 800によって、以上のようにシート体 830、 832に 相等する各シート 5、 6、 7、 8、 9、 10を積層（接合)する工程を経て製造されるが、以 下に前記中空体 1の具体的な製造工程について説明する。  [0138] The hollow body 1 is manufactured by the manufacturing apparatus 800 through the process of laminating (joining) the sheets 5, 6, 7, 8, 9, and 10 equivalent to the sheet bodies 830 and 832 as described above. However, a specific manufacturing process of the hollow body 1 will be described below.
[0139] 図 11ないし図 14は、図 2に示す前記中空体 1の製造工程を示す工程図であり、各 製造工程における中空体 1を図 2と同様の方向力 見た切断断面図である。  FIG. 11 to FIG. 14 are process diagrams showing the manufacturing process of the hollow body 1 shown in FIG. 2, and are sectional views of the hollow body 1 in each manufacturing process as seen from the same directional force as FIG. .
[0140] 図 11に示すように、まず前記中空部形成シート 7と前記中空部形成シ一と 8とを重 ねた状態で、前記製造装置 800の前記搬送装置 801b上に載置する。このとき、前 記中空部形成シート 8の前記下面 8bが前記搬送装置 801bに接するように載置する 。この状態で、前記中空部形成シート 8の前記上面 8aから前記中空部形成シート 7の 前記上面 7aにかけて、前記 Tダイ 804から溶融された前記榭脂材料 820を押し出す 。図 11に示すように、前記榭脂材料 820は、前記中空部形成シート 7の前記上面 7a の全面、および前記中空部形成シート 8の上面 8aのうち前記中空部形成シート 7と重 なった領域以外の全面 (前記中空部形成シート 8の幅寸法 W2の全域）にわたつて押 し出される。このとき、前記榭脂材料 820は、前記 Tダイ 804に形成されたスリットから シート状に成型されながら、前記中空部形成シート 7、 8の前記上面 7a、 8a上に押し 出される。このようにしてシート状に押し出された前記榭脂材料 820が、前記第 1接合 層 11を構成する。  As shown in FIG. 11, first, the hollow part forming sheet 7 and the hollow part forming sheets 1 and 8 are superposed on the conveying device 801b of the manufacturing apparatus 800. At this time, the lower surface 8b of the hollow portion forming sheet 8 is placed in contact with the transport device 801b. In this state, the resin material 820 melted from the T die 804 is extruded from the upper surface 8a of the hollow portion forming sheet 8 to the upper surface 7a of the hollow portion forming sheet 7. As shown in FIG. 11, the resin material 820 is a region where the hollow portion forming sheet 7 overlaps the entire upper surface 7a of the hollow portion forming sheet 7 and the upper surface 8a of the hollow portion forming sheet 8. Is pushed out over the entire surface (the entire width dimension W2 of the hollow portion forming sheet 8). At this time, the resin material 820 is extruded onto the upper surfaces 7a and 8a of the hollow portion forming sheets 7 and 8 while being formed into a sheet shape from the slit formed in the T die 804. The resin material 820 thus extruded into a sheet form constitutes the first bonding layer 11.
[0141] 次に、図 11に示すように、前記第 1接合層 11の上に、前記中間シート 9を、下面 9b が前記第 1接合層 11と接するように重ねて接合する。  Next, as shown in FIG. 11, the intermediate sheet 9 is overlapped and bonded onto the first bonding layer 11 so that the lower surface 9b is in contact with the first bonding layer 11.
[0142] このとき、図 2で説明したように、前記中空部形成シート 8の幅寸法 W2よりも前記中 間シート 9の幅寸法 W3の方が大きいため（図 2を参照）、図 11に示すように、前記中 間シート 9の前記下面 9bの両側端部領域 9bl、 9b2には、前記第 1接合層 11が対向 せず、この両側端部領域 9bl、 9b2には前記第 1接合層 11が形成されない。  [0142] At this time, as described in FIG. 2, the width dimension W3 of the intermediate sheet 9 is larger than the width dimension W2 of the hollow portion forming sheet 8 (see FIG. 2). As shown, the first bonding layer 11 does not face the side end regions 9bl and 9b2 of the lower surface 9b of the intermediate sheet 9, and the first bonding layer does not face the side end regions 9bl and 9b2. 11 is not formed.
[0143] したがって、前記中空部形成シート 7の前記上面 7aの全面が、前記第 1接合層 11 を介して前記中間シート 9と接合されるともに、前記中空部形成シート 8の両側端部 が前記第 1接合層 11を介して前記中間シート 9と接合される。このようにして積層され た前記中空部形成シート 7および 8と前記中間シート 9とで積層体 901を構成する。 Therefore, the entire surface of the upper surface 7a of the hollow portion forming sheet 7 is the first bonding layer 11 The both sides of the hollow portion forming sheet 8 are joined to the intermediate sheet 9 via the first joining layer 11. The hollow portion forming sheets 7 and 8 and the intermediate sheet 9 thus laminated constitute a laminate 901.
[0144] 図 11に示すように、前記中空部形成シート 7と 8とは第 1接合部 11によって接合さ れていないため、前記中空部形成シート 7と 8との間には中空部 2が形成される。  As shown in FIG. 11, since the hollow part forming sheets 7 and 8 are not joined by the first joint part 11, there is a hollow part 2 between the hollow part forming sheets 7 and 8. It is formed.
[0145] 図 11に示す工程では、前記中間シート 9が図 10に示すシート体 830に該当し、前 記第 1接合層 11が図 10に示す接合層 831に該当し、前記中空部形成シート 7と 8と を重ねたもの力 図 10に示すシート体 832に該当する。  In the step shown in FIG. 11, the intermediate sheet 9 corresponds to the sheet body 830 shown in FIG. 10, and the first bonding layer 11 corresponds to the bonding layer 831 shown in FIG. The force of overlapping 7 and 8 Corresponds to the sheet body 832 shown in Fig.10.
[0146] 次に図 12に示すように、前記積層体 901を構成する前記中間シート 9の下面 9bの 前記両側端部領域 9bl、 9b2に、前記第 1接合層 11の側方から前記中空部形成シ ート 8の側方、および前記中空部形成シート 8の下面 8bにかけて、前記 Tダイ 804か ら溶融された前記榭脂材料 820を押し出して第 2接合層 12を形成する。図 12に示す ように、前記榭脂材料 820は、前記中空部形成シート 8の下面 8bの全面、および前 記中間シート 9の下面 9bのうち前記中空部形成シート 7と 8とが重なった領域以外の 全面 (前記中間シート 9の幅寸法 W3の全域）、すなわち前記積層体 901の下側全面 にわたつて押し出される。  [0146] Next, as shown in FIG. 12, the hollow portion from the side of the first bonding layer 11 is formed on the both side end regions 9bl and 9b2 of the lower surface 9b of the intermediate sheet 9 constituting the laminate 901. The resin material 820 melted from the T die 804 is extruded to the side of the forming sheet 8 and the lower surface 8b of the hollow portion forming sheet 8 to form the second bonding layer 12. As shown in FIG. 12, the resin material 820 is a region where the hollow portion forming sheets 7 and 8 overlap the entire lower surface 8b of the hollow portion forming sheet 8 and the lower surface 9b of the intermediate sheet 9. Extruded over the entire surface (the entire width W3 of the intermediate sheet 9), that is, over the entire lower surface of the laminate 901.
[0147] 次に、前記第 2接合層 12の下面 12bに接するように中間シート 10を重ねると、前記 中間シート 9および前記中空部形成シート 8と、前記中間シート 10とが、前記第 2接 合層 12を介して接合される。この際、図 2に示すように、前記中間シート 9の幅寸法 W 3よりも前記中間シート 10の幅寸法 W4の方が大きいため、前記中間シート 10の上面 10aの両側端部領域 10al、 10a2は前記中間シート 9および前記第 2接合層 12と対 向せず、この両側端部領域 10al、 10a2には前記第 2接合層 12が形成されない。  Next, when the intermediate sheet 10 is stacked so as to be in contact with the lower surface 12b of the second bonding layer 12, the intermediate sheet 9, the hollow portion forming sheet 8, and the intermediate sheet 10 are connected to the second contact layer. Joined through the interlayer 12. At this time, as shown in FIG. 2, because the width dimension W4 of the intermediate sheet 10 is larger than the width dimension W3 of the intermediate sheet 9, both end regions 10al, 10a2 of the upper surface 10a of the intermediate sheet 10 Does not face the intermediate sheet 9 and the second bonding layer 12, and the second bonding layer 12 is not formed in the end regions 10al, 10a2.
[0148] このようにして積層された前記中空部形成シート 7および 8と前記中間シート 9およ び 10とで積層体 902が構成される。  [0148] The hollow portion forming sheets 7 and 8 and the intermediate sheets 9 and 10 laminated in this manner constitute a laminated body 902.
[0149] 図 12に示す工程では、前記積層体 901が図 10に示すシート体 830に該当し、前 記第 2接合層 12が図 10に示す前記接合層 831に該当し、前記中間シート 10が図 1 0に示すシート体 832に該当する。  In the step shown in FIG. 12, the laminated body 901 corresponds to the sheet body 830 shown in FIG. 10, the second joining layer 12 corresponds to the joining layer 831 shown in FIG. 10, and the intermediate sheet 10 Corresponds to the sheet body 832 shown in FIG.
[0150] 次に図 13に示すように、前記積層体 902を構成する前記中間シート 10の前記上 面 10aの前記両側端部領域 10al、 10a2に、前記第 2接合層 12の側方から前記中 間シート 9の側方、および前記中間シート 9の上面 9aにかけて、前記 Tダイ 804から 溶融された前記榭脂材料 820を押し出して、第 3接合層 13を形成する。図 13に示す ように、前記榭脂材料 820は、前記中間シート 9の上面 9aの全面、および前記中間 シート 10の上面 10aのうち前記中空部形成シート 7と 8と前記中間シート 9とが重なつ た領域以外の全面 (前記中間シート 10の幅寸法 W4の全域）、すなわち前記積層体 902の上側全面にわたって押し出される。 Next, as shown in FIG. 13, the upper side of the intermediate sheet 10 constituting the laminate 902 From the side of the second bonding layer 12 to the side of the intermediate sheet 9 and the upper surface 9a of the intermediate sheet 9 were melted from the T-die 804 to the both side end regions 10al and 10a2 of the surface 10a. The resin material 820 is extruded to form the third bonding layer 13. As shown in FIG. 13, the resin material 820 includes the entire upper surface 9a of the intermediate sheet 9, and the hollow portion forming sheets 7 and 8 and the intermediate sheet 9 in the upper surface 10a of the intermediate sheet 10. Extruded over the entire surface (the entire area of the width dimension W4 of the intermediate sheet 10) other than the region, that is, over the entire upper surface of the laminate 902.
[0151] 次に、前記第 3接合層 13の上面 13aに接するように第 1のシート 5を重ねると、前記 中間シート 9および 10と、前記第 1のシート 5とが、前記第 3接合層 13を介して接合さ れる。この際、図 2に示すように、前記中間シート 10の幅寸法 W4よりも前記第 1のシ ート 5の幅寸法 W5の方が大きいため、前記第 1のシート 5の下面 5bの両側端部領域 5bl、 5b2は、前記中間シート 10および前記第 3接合層 13と対向せず、この両側端 部領域 5b 1、 5b2には前記第 3接合層 13が形成されな 、。  [0151] Next, when the first sheet 5 is overlapped so as to contact the upper surface 13a of the third bonding layer 13, the intermediate sheets 9 and 10 and the first sheet 5 become the third bonding layer. 13 is joined. At this time, as shown in FIG. 2, since the width dimension W5 of the first sheet 5 is larger than the width dimension W4 of the intermediate sheet 10, both side edges of the lower surface 5b of the first sheet 5 are arranged. The partial regions 5bl and 5b2 do not face the intermediate sheet 10 and the third bonding layer 13, and the third bonding layer 13 is not formed in the side edge regions 5b1 and 5b2.
[0152] このようにして積層された前記中空部形成シート 7および 8と、前記中間シート 9およ び 10と、前記第 1のシート 5とで積層体 903が構成される。  [0152] The hollow portion forming sheets 7 and 8, the intermediate sheets 9 and 10, and the first sheet 5 laminated in this manner constitute a laminated body 903.
[0153] 図 13に示す工程では、前記積層体 902が図 10に示すシート体 830に該当し、前 記第 3接合層 13が図 10に示す前記接合層 831に該当し、前記第 1のシート 5が図 1 0に示す前記シート体 832に該当する。  In the step shown in FIG. 13, the laminate 902 corresponds to the sheet body 830 shown in FIG. 10, and the third bonding layer 13 corresponds to the bonding layer 831 shown in FIG. The sheet 5 corresponds to the sheet body 832 shown in FIG.
[0154] 次に図 14に示すように、前記積層体 903を構成する前記第 1のシート 5の前記下面 5bの前記両側端部領域 5b 1、 5b2に、前記第 3接合層 13の側方力も前記中間シー ト 10の側方、および前記中間シート 10の下面 10bにかけて、前記 Tダイ 804から溶 融された前記榭脂材料 820を押し出して第 4接合層 14を形成する。図 14に示すよう に、前記榭脂材料 820は、前記中間シート 10の下面 10bの全面、および前記第 1の シート 5の下面 5bのうち前記中空部形成シート 7と 8と前記中間シート 9と 10とが重な つた領域以外の全面 (前記第 1のシート 5の幅寸法 W5の全域）、すなわち前記積層 体 903の下側全面にわたって押し出される。  Next, as shown in FIG. 14, lateral sides of the third bonding layer 13 are formed on the side end regions 5b 1 and 5b2 of the lower surface 5b of the first sheet 5 constituting the laminated body 903. A force is also applied to the side of the intermediate sheet 10 and the lower surface 10b of the intermediate sheet 10 to extrude the resin material 820 melted from the T die 804 to form the fourth bonding layer 14. As shown in FIG. 14, the resin material 820 includes the hollow portion forming sheets 7 and 8 and the intermediate sheet 9 among the entire lower surface 10b of the intermediate sheet 10 and the lower surface 5b of the first sheet 5. Extruded over the entire area other than the area where 10 overlaps (the entire width dimension W5 of the first sheet 5), that is, over the entire lower surface of the laminate 903.
[0155] 次に、前記第 4接合層 14の下面 14bに接するように第 2のシート 6を重ねると、前記 中間シート 10および前記第 1のシート 5と、前記第 2のシート 6とが、前記第 4接合層 1 4を介して接合される。この際、図 2に示すように、前記第 1のシート 5の幅寸法 W5と 前記第 2のシート 6の幅寸法 W6とは同じ寸法で形成されているため、前記第 1のシ ート 5の下面 5bの両側端部領域 5bl、 5b2は、前記第 2のシート 6および前記第 4接 合層 14と対向し、前記第 1のシート 5の前記下面 5bの前記両側端部領域 5bl、 5b2 は、前記第 4接合層 14を介して前記第 2のシート 6と接合される。 [0155] Next, when the second sheet 6 is stacked so as to contact the lower surface 14b of the fourth bonding layer 14, the intermediate sheet 10, the first sheet 5, and the second sheet 6 are: Fourth bonding layer 1 Joined via 4. At this time, as shown in FIG. 2, since the width dimension W5 of the first sheet 5 and the width dimension W6 of the second sheet 6 are formed with the same dimension, the first sheet 5 Both side end regions 5bl, 5b2 of the lower surface 5b of the first plate 5 are opposed to the second sheet 6 and the fourth bonding layer 14, and both side end regions 5bl, 5b2 of the lower surface 5b of the first sheet 5 are configured. Are bonded to the second sheet 6 via the fourth bonding layer 14.
[0156] このようにして積層された前記中空部形成シート 7および 8と、前記中間シート 9およ び 10と、前記第 1のシート 5と前記第 2のシート 6とが積層されると積層体 904が形成 され、この積層体 904が図 2に示す前記中空体 1を構成する。  [0156] The hollow portion forming sheets 7 and 8, the intermediate sheets 9 and 10, the first sheet 5 and the second sheet 6 laminated in this way are laminated. A body 904 is formed, and the laminated body 904 constitutes the hollow body 1 shown in FIG.
[0157] 図 14に示す工程では、前記積層体 903が図 10に示すシート体 830に該当し、前 記第 3接合層 13が図 10に示す前記接合層 831に該当し、前記第 1のシート 5が図 1 0に示す前記シート体 832に該当する。  In the step shown in FIG. 14, the laminated body 903 corresponds to the sheet body 830 shown in FIG. 10, and the third bonding layer 13 corresponds to the bonding layer 831 shown in FIG. The sheet 5 corresponds to the sheet body 832 shown in FIG.
[0158] 図 11ないし図 14に示す前記中空体 1の製造方法では、前記中空部形成シート 7、 前記中空部形成シート 8、前記中間シート 9、前記中間シート 10、前記第 1のシート 5 、前記第 2のシート 6をそれぞれ重ねて、前記第 1接合層 11、前記第 2接合層 12、前 記第 3接合層 13、前記第 4接合層 14によって、前記したように各シート 5、 6、 7、 8、 9 、 10を互いに接合するだけで中空体 1を製造することができるので、中空体 1を容易 に形成することができる。従来では、例えば榭脂材料などをインフレーション法などの 方法によって中空体を形成していた力 前記インフレーション法では榭脂の内部にェ ァを吹き込んで膨らますなどの方法によって行われるため、設備が大きくなる。しかし 前記中空体 1は Tダイ押し出し法によって製造することができるため、大きな設備ゃス ペースを必要としな 、で製造することが可能となる。  In the method for manufacturing the hollow body 1 shown in FIGS. 11 to 14, the hollow part forming sheet 7, the hollow part forming sheet 8, the intermediate sheet 9, the intermediate sheet 10, the first sheet 5, The second sheets 6 are overlapped, and the sheets 5, 6 as described above are formed by the first bonding layer 11, the second bonding layer 12, the third bonding layer 13, and the fourth bonding layer 14, respectively. Since the hollow body 1 can be produced simply by joining together 7, 8, 9, and 10, the hollow body 1 can be easily formed. Conventionally, for example, the force that formed a hollow body of a resin material by a method such as inflation method, etc. In the inflation method, since the method is performed by blowing air into the interior of the resin, the equipment becomes large. . However, since the hollow body 1 can be manufactured by the T-die extrusion method, it can be manufactured without requiring a large facility.
[0159] また、前記中空体 1の製造方法では、図 11に示すように、前記中空部形成シート 7 の前記上面 7aの全面、および前記中空部形成シート 8の上面 8aのうち前記中空部 形成シート 7と重なった領域以外の全面に前記第 1接合層 11を形成すれば良!ヽ。ま た図 12に示すように、前記積層体 901の下側全面にわたって前記第 2接合層 12を 形成すれば良い。また図 13に示すように、前記積層体 902の上側全面にわたって前 記第 3接合層 13を形成すれば良い。さらに図 14に示すように、前記積層体 903の下 側全面にわたって前記第 4接合層 14を形成すれば良 ヽ。 [0160] このように、図 11ないし図 14に示す中空体 1の製造方法では、各シート 5、 6、 7、 8 、 9、 10の側端部の狭い面積に、接合層を形成する必要がなぐ前記中空部形成シ ート 7と 8の重ね体の全面、前記積層体 901、 902、 903の全面に、それぞれ前記各 接合層 11、 12、 13、 14を形成すれば良いため、シビアな精度の制御を行わなくても 前記中空体 1を製造することができ、全体として容易に製造を行うことが可能となる。 [0159] Further, in the method for manufacturing the hollow body 1, as shown in FIG. 11, the hollow portion is formed among the entire upper surface 7a of the hollow portion forming sheet 7 and the upper surface 8a of the hollow portion forming sheet 8. It is sufficient to form the first bonding layer 11 on the entire surface other than the region overlapping the sheet 7. Also, as shown in FIG. 12, the second bonding layer 12 may be formed over the entire lower surface of the laminate 901. In addition, as shown in FIG. 13, the third bonding layer 13 may be formed over the entire upper surface of the laminate 902. Furthermore, as shown in FIG. 14, the fourth bonding layer 14 may be formed over the entire lower surface of the laminate 903. As described above, in the method for manufacturing the hollow body 1 shown in FIGS. 11 to 14, it is necessary to form a bonding layer in a narrow area at the side end of each sheet 5, 6, 7, 8, 9, 10. Since the bonding layers 11, 12, 13, and 14 may be formed on the entire surface of the stacked body of the hollow portion forming sheets 7 and 8 and the entire surface of the stacked bodies 901, 902, and 903, respectively. The hollow body 1 can be manufactured without performing accurate control, and can be easily manufactured as a whole.
[0161] 図 15ないし図 18は、図 3に示す前記中空体 101の製造方法を示す工程図であり、 各製造工程における中空体 101を図 3と同じ方向から見た切断断面図である。  15 to 18 are process diagrams showing a method for manufacturing the hollow body 101 shown in FIG. 3, and are sectional views of the hollow body 101 in each manufacturing process as seen from the same direction as FIG.
[0162] 図 15に示すように、まず前記中空体 1の製造方法を示す図 11に示す工程と同じェ 程によって、図 15に示す前記積層体 901を製造する。  As shown in FIG. 15, first, the laminate 901 shown in FIG. 15 is manufactured by the same process as that shown in FIG. 11 showing the method for manufacturing the hollow body 1.
[0163] 図 15に示す工程では、前記中間シート 9が図 10に示すシート体 830に該当し、前 記第 1接合層 11が図 10に示す接合層 831に該当し、前記中空部形成シート 7と 8と を重ねたもの力 図 10に示すシート体 832に該当する。  In the step shown in FIG. 15, the intermediate sheet 9 corresponds to the sheet body 830 shown in FIG. 10, the first bonding layer 11 corresponds to the bonding layer 831 shown in FIG. 10, and the hollow part forming sheet The force of overlapping 7 and 8 Corresponds to the sheet body 832 shown in Fig.10.
[0164] 次に図 16に示すように、前記積層体 901を構成する前記中間シート 9の下面 9bの 前記両側端部領域 9bl、 9b2に、前記第 1接合層 11の側方から前記中空部形成シ ート 8の側方、および前記中空部形成シート 8の下面 8bにかけて、前記 Tダイ 804か ら溶融された前記榭脂材料 820を押し出して第 2接合層 12を形成する。図 12に示す ように、前記榭脂材料 820は、前記中空部形成シート 8の下面 8bの全面、および前 記中間シート 9の下面 9bのうち前記中空部形成シート 7と 8とが重なった領域以外の 全面 (前記中間シート 9の幅寸法 W3の全域）、すなわち前記積層体 901の下側全面 にわたつて押し出される。  [0164] Next, as shown in FIG. 16, the hollow portion from the side of the first bonding layer 11 is formed on both side end regions 9bl and 9b2 of the lower surface 9b of the intermediate sheet 9 constituting the laminate 901. The resin material 820 melted from the T die 804 is extruded to the side of the forming sheet 8 and the lower surface 8b of the hollow portion forming sheet 8 to form the second bonding layer 12. As shown in FIG. 12, the resin material 820 is a region where the hollow portion forming sheets 7 and 8 overlap the entire lower surface 8b of the hollow portion forming sheet 8 and the lower surface 9b of the intermediate sheet 9. Extruded over the entire surface (the entire width W3 of the intermediate sheet 9), that is, over the entire lower surface of the laminate 901.
[0165] 次に、前記第 2接合層 12の下面 12bに接するように中間シート 10を重ねると、前記 中間シート 9および前記中空部形成シート 8と、前記中間シート 10とが、前記第 2接 合層 12を介して接合される。この際、図 3に示すように、前記中間シート 9の幅寸法 W 3と前記中間シート 10の幅寸法 W4とが同じ大きさに形成されているため、前記中間 シート 10の上面 10aの両側端部領域 10al、 10a2は前記中間シート 9および前記第 2接合層 12と対向せず、この両側端部領域 10al、 10a2には前記第 2接合層 12が 形成されない。したがって、前記中空部形成シート 8と前記中間シート 10が前記第 2 接合層 12を介して接合されるとともに、前記中間シート 9と前記中間シート 10とが前 記第 2接合層 12を介して接合される。 [0165] Next, when the intermediate sheet 10 is stacked so as to contact the lower surface 12b of the second bonding layer 12, the intermediate sheet 9, the hollow portion forming sheet 8, and the intermediate sheet 10 become the second contact. Joined through the interlayer 12. At this time, as shown in FIG. 3, since the width dimension W3 of the intermediate sheet 9 and the width dimension W4 of the intermediate sheet 10 are formed to have the same size, both side edges of the upper surface 10a of the intermediate sheet 10 are formed. The partial regions 10al and 10a2 do not face the intermediate sheet 9 and the second bonding layer 12, and the second bonding layer 12 is not formed in the side end regions 10al and 10a2. Therefore, the hollow portion forming sheet 8 and the intermediate sheet 10 are bonded via the second bonding layer 12, and the intermediate sheet 9 and the intermediate sheet 10 are It is joined via the second joining layer 12.
[0166] このようにして積層された前記中空部形成シート 7および 8と前記中間シート 9およ び 10とで積層体 905が構成される。  [0166] The hollow portion forming sheets 7 and 8 and the intermediate sheets 9 and 10 laminated in this manner constitute a laminated body 905.
[0167] 図 16に示す工程では、前記積層体 901が図 10に示すシート体 830に該当し、前 記第 2接合層 12が図 10に示す前記接合層 831に該当し、前記中間シート 10が図 1 0に示すシート体 832に該当する。  In the step shown in FIG. 16, the laminate 901 corresponds to the sheet body 830 shown in FIG. 10, the second joining layer 12 corresponds to the joining layer 831 shown in FIG. 10, and the intermediate sheet 10 Corresponds to the sheet body 832 shown in FIG.
[0168] 次に図 17に示すように、前記積層体 905を構成する前記中間シート 9の前記上面 9aに、前記 Tダイ 804から溶融された前記榭脂材料 820を押し出して第 5接合層 15 を形成する。図 17に示すように、前記榭脂材料 820は、前記中間シート 9の上面 9a の全面、すなわち前記積層体 905の上側全面にわたって押し出される。  Next, as shown in FIG. 17, the resin material 820 melted from the T-die 804 is extruded onto the upper surface 9a of the intermediate sheet 9 constituting the laminated body 905, and the fifth bonding layer 15 Form. As shown in FIG. 17, the resin material 820 is extruded over the entire upper surface 9a of the intermediate sheet 9, that is, the entire upper surface of the laminate 905.
[0169] 次に、前記第 5接合層 15の上面 15aに接するように第 1のシート 5を重ねると、前記 中間シート 9と前記第 1のシート 5とが、前記第 5接合層 15を介して接合される。この 際、図 3に示すように、前記中間シート 9の幅寸法 W3よりも前記第 1のシート 5の幅寸 法 W5の方が大きいため、前記第 1のシート 5の下面 5bの両側端部領域 5bl、 5b2は 、前記中間シート 10の上面 10a全面に接合された前記第 5接合層 15と対向せず、こ の両側端部領域 5b 1、 5b2には前記第 5接合層 15が形成されな 、。  Next, when the first sheet 5 is stacked so as to be in contact with the upper surface 15a of the fifth bonding layer 15, the intermediate sheet 9 and the first sheet 5 are interposed via the fifth bonding layer 15. Are joined. At this time, as shown in FIG. 3, since the width dimension W5 of the first sheet 5 is larger than the width dimension W3 of the intermediate sheet 9, both side end portions of the lower surface 5b of the first sheet 5 are used. The regions 5bl and 5b2 do not face the fifth bonding layer 15 bonded to the entire upper surface 10a of the intermediate sheet 10, and the fifth bonding layer 15 is formed in both side end regions 5b 1 and 5b2. Nah ...
[0170] このようにして積層された前記中空部形成シート 7および 8と、前記中間シート 9およ び 10と、前記第 1のシート 5とで積層体 906が構成される。  [0170] The hollow portion forming sheets 7 and 8, the intermediate sheets 9 and 10, and the first sheet 5 laminated in this manner constitute a laminated body 906.
[0171] 図 17に示す工程では、前記積層体 905が図 10に示すシート体 830に該当し、前 記第 5接合層 15が図 10に示す前記接合層 831に該当し、前記第 1のシート 5が図 1 0に示す前記シート体 832に該当する。  In the step shown in FIG. 17, the laminated body 905 corresponds to the sheet body 830 shown in FIG. 10, and the fifth bonding layer 15 corresponds to the bonding layer 831 shown in FIG. The sheet 5 corresponds to the sheet body 832 shown in FIG.
[0172] 次に図 18に示すように、前記積層体 906を構成する前記第 1のシート 5の前記下面 5bの前記両側端部領域 5bl、 5b2に、前記第 5接合層 15と前記中間シート 9と前記 第 3接合層 13の側方力も前記中間シート 10の側方、および前記中間シート 10の下 面 10bにかけて、前記 Tダイ 804から溶融された前記榭脂材料 820を押し出して第 4 接合層 14を形成する。図 18に示すように、前記榭脂材料 820は、前記中間シート 1 0の下面 10bの全面、および前記第 1のシート 5の下面 5bのうち前記中空部形成シ ート 7と 8と前記中間シート 9と 10とが重なった領域以外の全面 (前記第 1のシート 5の 幅寸法 W5の全域）、すなわち前記積層体 906の下側全面にわたって押し出される。 Next, as shown in FIG. 18, the fifth bonding layer 15 and the intermediate sheet are formed on the both side end regions 5bl and 5b2 of the lower surface 5b of the first sheet 5 constituting the laminate 906. 9 and the side force of the third bonding layer 13 are also applied to the side of the intermediate sheet 10 and the lower surface 10b of the intermediate sheet 10 to extrude the resin material 820 melted from the T-die 804 for the fourth bonding. Layer 14 is formed. As shown in FIG. 18, the resin material 820 includes the entire surface of the lower surface 10b of the intermediate sheet 10 and the hollow portion forming sheets 7 and 8 and the intermediate surface of the lower surface 5b of the first sheet 5. The entire surface other than the area where sheets 9 and 10 overlap (the first sheet 5 The whole area of the width dimension W5), that is, the entire lower surface of the laminate 906 is extruded.
[0173] 次に、前記第 4接合層 14の下面 14bに接するように第 2のシート 6を重ねると、前記 中間シート 10および前記第 1のシート 5と、前記第 2のシート 6とが、前記第 4接合層 1 4を介して接合される。この際、図 3に示すように、前記第 1のシート 5の幅寸法 W5と 前記第 2のシート 6の幅寸法 W6とは同じ寸法で形成されているため、前記第 1のシ ート 5の下面 5bの両側端部領域 5bl、 5b2は、前記第 2のシート 6および前記第 4接 合層 14と対向し、前記第 1のシート 5の前記下面 5bの前記両側端部領域 5bl、 5b2 は、前記第 4接合層 14を介して前記第 2のシート 6と接合される。  [0173] Next, when the second sheet 6 is stacked so as to contact the lower surface 14b of the fourth bonding layer 14, the intermediate sheet 10, the first sheet 5, and the second sheet 6 are: Bonding is performed via the fourth bonding layer 14. At this time, as shown in FIG. 3, since the width dimension W5 of the first sheet 5 and the width dimension W6 of the second sheet 6 are formed with the same dimension, the first sheet 5 Both side end regions 5bl, 5b2 of the lower surface 5b of the first plate 5 are opposed to the second sheet 6 and the fourth bonding layer 14, and both side end regions 5bl, 5b2 of the lower surface 5b of the first sheet 5 are configured. Are bonded to the second sheet 6 via the fourth bonding layer 14.
[0174] このようにして積層された前記中空部形成シート 7および 8と、前記中間シート 9およ び 10と、前記第 1のシート 5と前記第 2のシート 6とが積層されると積層体 907が形成 され、この積層体 907が図 3に示す前記中空体 101を構成する。  [0174] The hollow portion forming sheets 7 and 8, the intermediate sheets 9 and 10, the first sheet 5 and the second sheet 6 laminated in this way are laminated. A body 907 is formed, and this laminate 907 constitutes the hollow body 101 shown in FIG.
[0175] 図 18に示す工程では、前記積層体 906が図 10に示すシート体 830に該当し、前 記第 4接合層 14が図 10に示す前記接合層 831に該当し、前記第 2のシート 6が図 1 0に示す前記シート体 832に該当する。  In the step shown in FIG. 18, the laminated body 906 corresponds to the sheet body 830 shown in FIG. 10, and the fourth bonding layer 14 corresponds to the bonding layer 831 shown in FIG. The sheet 6 corresponds to the sheet body 832 shown in FIG.
[0176] 図 15ないし図 18に示す前記中空体 101の製造方法でも、前記中空部形成シート 7、前記中空部形成シート 8、前記中間シート 9、前記中間シート 10、前記第 1のシー ト 5、前記第 2のシート 6をそれぞれ重ねて、前記第 1接合層 11、前記第 2接合層 12、 前記第 3接合層 13、前記第 4接合層 14によって、前記したように各シート 5、 6、 7、 8 、 9、 10を互いに接合するだけで中空体 1を製造することができるので、中空体 1を容 易に形成することができる。また大きな設備やスペースを必要としな 、で製造すること が可能となる。  Also in the method for manufacturing the hollow body 101 shown in FIGS. 15 to 18, the hollow portion forming sheet 7, the hollow portion forming sheet 8, the intermediate sheet 9, the intermediate sheet 10, and the first sheet 5 The second sheets 6 are stacked, and the first bonding layer 11, the second bonding layer 12, the third bonding layer 13, and the fourth bonding layer 14 are used to form the respective sheets 5, 6 as described above. Since the hollow body 1 can be produced simply by joining together 7, 8, 9, and 10, the hollow body 1 can be easily formed. In addition, it can be manufactured without requiring large facilities and space.
[0177] また、前記中空体 1の製造方法では、図 15に示すように、前記中空部形成シート 7 の前記上面 7aの全面、および前記中空部形成シート 8の上面 8aのうち前記中空部 形成シート 7と重なった領域以外の全面に前記第 1接合層 11を形成すれば良!ヽ。ま た図 16に示すように、前記積層体 901の下側全面にわたって前記第 2接合層 12を 形成すれば良い。また図 17に示すように、前記積層体 905の上側全面にわたって前 記第 5接合層 15を形成すれば良い。さらに図 18に示すように、前記積層体 906の下 側全面にわたって前記第 4接合層 14を形成すれば良 ヽ。 [0178] このように、図 15ないし図 18に示す中空体 101の製造方法でも、各シート 5、 6、 7 、 8、 9、 10の側端部の狭い面積に、接合層を形成する必要がないため、シビアな精 度の制御を行わなくても前記中空体 101を製造することができ、全体として容易に製 造を行うことが可能となる。 Further, in the method for manufacturing the hollow body 1, as shown in FIG. 15, the formation of the hollow portion among the entire upper surface 7a of the hollow portion forming sheet 7 and the upper surface 8a of the hollow portion forming sheet 8 is performed. It is sufficient to form the first bonding layer 11 on the entire surface other than the region overlapping the sheet 7. Also, as shown in FIG. 16, the second bonding layer 12 may be formed over the entire lower surface of the laminate 901. Also, as shown in FIG. 17, the fifth bonding layer 15 may be formed over the entire upper surface of the laminate 905. Further, as shown in FIG. 18, the fourth bonding layer 14 may be formed over the entire lower surface of the laminate 906. [0178] As described above, also in the method for manufacturing the hollow body 101 shown in Figs. 15 to 18, it is necessary to form a bonding layer in a narrow area at the side end of each sheet 5, 6, 7, 8, 9, 10. Therefore, the hollow body 101 can be manufactured without severe control of accuracy, and can be easily manufactured as a whole.
[0179] 図 19ないし図 20は、図 4に示す前記中空体 201の製造工程を示す工程図であり、 各製造工程における中空体 201を図 2と同様の方向力も見た切断断面図である。  FIG. 19 to FIG. 20 are process diagrams showing the manufacturing process of the hollow body 201 shown in FIG. 4, and are sectional views of the hollow body 201 in each manufacturing process showing the same directional force as FIG. .
[0180] 図 19に示すように、まず第 1のシート 5を、上面 5aが前記製造装置 800の前記搬送 装置 801bに接するように前記搬送装置 801b上に載置する。この状態で、前記第 1 のシート 5の下面 5bに、前記 Tダイ 804から溶融された前記榭脂材料 820を押し出す 。図 19に示すように、前記榭脂材料 820は、前記第 1のシート 5の前記下面 5bの全 面にわたって押し出される。このとき、前記榭脂材料 820は、前記 Tダイ 804に形成さ れたスリットからシート状に成型されながら、前記第 1のシート 5の前記下面 5bに押し 出される。このようにしてシート状に押し出された前記榭脂材料 820が、図 4に示す前 記第 6接合層 30を構成する。  As shown in FIG. 19, first, the first sheet 5 is placed on the transport device 801b so that the upper surface 5a is in contact with the transport device 801b of the manufacturing apparatus 800. In this state, the resin material 820 melted from the T die 804 is pushed out to the lower surface 5b of the first sheet 5. As shown in FIG. 19, the resin material 820 is extruded over the entire lower surface 5b of the first sheet 5. At this time, the resin material 820 is pushed out to the lower surface 5b of the first sheet 5 while being formed into a sheet shape from a slit formed in the T die 804. The resin material 820 thus extruded into a sheet form constitutes the sixth bonding layer 30 shown in FIG.
[0181] 次に、前記第 6接合層 30下面 30bに接するように、基材層 207aと接合層 207bとで 構成される中空部形成シート 207を重ねると、前記第 1のシート 5と前記中空部形成 シート 207とが、前記第 6接合層 30を介して接合される。  Next, when the hollow portion forming sheet 207 composed of the base material layer 207a and the bonding layer 207b is overlapped so as to contact the lower surface 30b of the sixth bonding layer 30, the first sheet 5 and the hollow The part forming sheet 207 is bonded via the sixth bonding layer 30.
[0182] 次に図 19に示すように、基材層 208aと接合層 208bとを有する中空部形成シート を用意する。そして図 19に示すように、前記積層体 908を構成する前記中空部形成 シート 207に前記中空部形成シート 208を重ねる。  Next, as shown in FIG. 19, a hollow portion forming sheet having a base material layer 208a and a bonding layer 208b is prepared. Then, as shown in FIG. 19, the hollow portion forming sheet 208 is overlaid on the hollow portion forming sheet 207 constituting the laminate 908.
[0183] このようにして積層された前記中空部形成シート 207と、前記第 1のシート 5、および 前記中空部形成シート 207に重ねられた前記中空部形成シート 208とで積層体 908 が形成される。  [0183] The hollow portion forming sheet 207 laminated in this manner, the first sheet 5, and the hollow portion forming sheet 208 stacked on the hollow portion forming sheet 207 form a laminate 908. The
[0184] 図 19に示す工程では、前記第 1のシート 5が図 10に示すシート体 830に該当し、 前記第 6接合層 30が図 10に示す前記接合層 831に該当し、前記中空部形成シート 207および 208とが図 10に示す前記シート体 832に該当する。  In the step shown in FIG. 19, the first sheet 5 corresponds to the sheet body 830 shown in FIG. 10, the sixth bonding layer 30 corresponds to the bonding layer 831 shown in FIG. The forming sheets 207 and 208 correspond to the sheet body 832 shown in FIG.
[0185] この状態で図 20に示すように、前記第 6接合層 30の下面 30bから、前記中空部形 成シート 208の下面 208cにかけて、前記 Tダイ 804から溶融された前記榭脂材料 82 0を押し出す。図 20に示すように、前記榭脂材料 820は、前記中空部形成シート 20 8の前記下面 208cの全面にわたって押し出される。このとき、前記榭脂材料 820は、 前記 Tダイ 804に形成されたスリットからシート状に成型されながら、前記中空部形成 シート 208の前記下面 208c上に押し出される。このようにしてシート状に押し出され た前記榭脂材料 820が、図 4に示す前記第 4接合層 14を構成する。 In this state, as shown in FIG. 20, from the bottom surface 30b of the sixth bonding layer 30 to the bottom surface 208c of the hollow portion forming sheet 208, the resin material 82 melted from the T die 804 is used. Extrude 0. As shown in FIG. 20, the resin material 820 is extruded over the entire lower surface 208c of the hollow portion forming sheet 208. At this time, the resin material 820 is pushed out onto the lower surface 208c of the hollow portion forming sheet 208 while being formed into a sheet shape from a slit formed in the T die 804. The resin material 820 thus extruded into a sheet forms the fourth bonding layer 14 shown in FIG.
[0186] 次に図 20に示すように、前記第 4接合層 14の下に、第 2のシート 6を、上面 6aが前 記第 4接合層 14と接するように重ねて接合する。  Next, as shown in FIG. 20, under the fourth bonding layer 14, the second sheet 6 is laminated and bonded so that the upper surface 6a is in contact with the fourth bonding layer 14.
[0187] このようにして積層された前記第 1のシート 5と前記第 2のシート 6と前記中空部形成 シート 207と 208とで積層体 909が形成される。この積層体 909が図 4に示す前記中 空体 201を構成する。  [0187] A laminate 909 is formed by the first sheet 5, the second sheet 6, and the hollow portion forming sheets 207 and 208 laminated in this manner. The laminated body 909 constitutes the hollow body 201 shown in FIG.
[0188] 図 19および図 20に示す前記中空体 201の製造方法でも、前記中空部形成シート 207、前記中空部形成シート 208、前記第 1のシート 5、前記第 2のシート 6をそれぞ れ重ねて、前記第 4接合層 14、前記第 6接合層 30によって、前記したように各シート 5、 6、 207、 208を互いに接合するだけで中空体 201を製造することができるので、 中空体 201を容易に形成することができる。また大きな設備やスペースを必要としな V、で製造することが可能となる。  [0188] Also in the method for manufacturing the hollow body 201 shown in Figs. 19 and 20, the hollow portion forming sheet 207, the hollow portion forming sheet 208, the first sheet 5, and the second sheet 6 are each provided. Since the hollow body 201 can be manufactured by simply joining the sheets 5, 6, 207, 208 to each other as described above by the fourth bonding layer 14 and the sixth bonding layer 30, the hollow body 201 can be easily formed. It can also be manufactured with V, which requires large equipment and space.
[0189] また、前記中空体 201の製造方法では、図 19に示すように、前記第 1のシート 5の 前記下面 5bの全面に前記第 6接合層 30を形成すれば良 、。また図 21に示すように 、前記積層体 908の下側全面にわたって前記第 4接合層 14を形成すれば良い。  Further, in the method for manufacturing the hollow body 201, as shown in FIG. 19, the sixth bonding layer 30 may be formed on the entire surface of the lower surface 5b of the first sheet 5. Further, as shown in FIG. 21, the fourth bonding layer 14 may be formed over the entire lower surface of the laminate 908.
[0190] このように、図 19および図 20に示す中空体 201の製造方法でも、各シート 5、 6、 2 07、 208の側端部の狭い面積に、接合層を形成する必要がないため、シビアな精度 の制御を行わなくても前記中空体 201を製造することができ、全体として容易に製造 を行うことが可能となる。  [0190] As described above, even in the manufacturing method of the hollow body 201 shown in Figs. 19 and 20, it is not necessary to form a bonding layer in a small area at the side end of each sheet 5, 6, 2 07, 208. Further, the hollow body 201 can be manufactured without controlling severe precision, and can be easily manufactured as a whole.
[0191] 図 21ないし図 24は、図 5に示す前記中空体 301の製造工程を示す工程図であり、 各製造工程における中空体 301を図 2と同様の方向力も見た切断断面図である。  FIG. 21 to FIG. 24 are process diagrams showing the manufacturing process of the hollow body 301 shown in FIG. 5, and are sectional views of the hollow body 301 in each manufacturing process showing the same directional force as FIG. .
[0192] 図 21に示すように、まず第 1のシート 5を、上面 5aが前記製造装置 800の前記搬送 装置 801bに接するように前記搬送装置 801b上に載置する。この状態で、前記第 1 のシート 5の下面 5bに、前記 Tダイ 804から溶融された前記榭脂材料 820を押し出す 。図 21に示すように、前記榭脂材料 820は、前記第 1のシート 5の前記下面 5bの全 面にわたって押し出される。このとき、前記榭脂材料 820は、前記 Tダイ 804に形成さ れたスリットからシート状に成型されながら、前記第 1のシート 5の前記下面 5bに押し 出される。このようにしてシート状に押し出された前記榭脂材料 820が、図 5に示す前 記第 7接合層 31を構成する。 As shown in FIG. 21, first, the first sheet 5 is placed on the transport device 801b so that the upper surface 5a is in contact with the transport device 801b of the manufacturing apparatus 800. In this state, the resin material 820 melted from the T die 804 is extruded onto the lower surface 5b of the first sheet 5. . As shown in FIG. 21, the resin material 820 is extruded over the entire lower surface 5 b of the first sheet 5. At this time, the resin material 820 is pushed out to the lower surface 5b of the first sheet 5 while being formed into a sheet shape from a slit formed in the T die 804. The resin material 820 thus extruded into a sheet form the seventh bonding layer 31 shown in FIG.
[0193] 次に、前記第 7接合層 31の下面 31bに接するように、中間シート 9を重ねる。次に、 前記中間シート 9の下面 9bに、前記 Tダイ 804から溶融された前記榭脂材料 820を 押し出す。図 21に示すように、前記榭脂材料 820は、前記中間シート 9の下面 9bの 全面にわたって押し出される。このとき、前記榭脂材料 820は、前記 Tダイ 804に形 成されたスリットからシート状に成型されながら、前記中間シート 9の前記下面 9bに押 し出される。このようにしてシート状に押し出された前記榭脂材料 820が、図 5に示す 前記第 9接合層 33を構成する。  [0193] Next, the intermediate sheet 9 is stacked so as to contact the lower surface 31b of the seventh bonding layer 31. Next, the resin material 820 melted from the T die 804 is extruded onto the lower surface 9 b of the intermediate sheet 9. As shown in FIG. 21, the resin material 820 is extruded over the entire lower surface 9b of the intermediate sheet 9. At this time, the resin material 820 is pushed out to the lower surface 9b of the intermediate sheet 9 while being formed into a sheet shape from the slit formed in the T die 804. The resin material 820 thus extruded into a sheet forms the ninth bonding layer 33 shown in FIG.
[0194] このようにして積層された前記第 1のシート 5と、前記中間シート 9とで積層体 910が 形成される。  [0194] A laminate 910 is formed by the first sheet 5 and the intermediate sheet 9 laminated in this manner.
[0195] 図 21に示す工程では、前記第 1のシート 5が図 10に示すシート体 830に該当し、 前記第 7接合層 31が図 10に示す前記接合層 831に該当し、前記中間シート 9が図 1 0に示す前記シート体 832に該当する。また、前記第 9接合層 33は、図 10に示す前 記シート体 832の上に、前記 Tダイ 804を用いて形成されることになる。  In the step shown in FIG. 21, the first sheet 5 corresponds to the sheet body 830 shown in FIG. 10, the seventh bonding layer 31 corresponds to the bonding layer 831 shown in FIG. 10, and the intermediate sheet 9 corresponds to the sheet body 832 shown in FIG. The ninth bonding layer 33 is formed on the sheet body 832 shown in FIG. 10 using the T die 804.
[0196] 次に図 22に示すように、第 2のシート 6を、下面 6bが前記製造装置 800の前記搬 送装置 801bに接するように前記搬送装置 801b上に載置する。この状態で、前記第 2のシート 6の上面 6aに、前記 Tダイ 804から溶融された前記榭脂材料 820を押し出 す。図 21に示すように、前記榭脂材料 820は、前記第 2のシート 6の前記上面 6aの 全面にわたって押し出される。このとき、前記榭脂材料 820は、前記 Tダイ 804に形 成されたスリットからシート状に成型されながら、前記第 2のシート 6の前記上面 6aに 押し出される。このようにしてシート状に押し出された前記榭脂材料 820が、図 5に示 す前記第 8接合層 32を構成する。  Next, as shown in FIG. 22, the second sheet 6 is placed on the transport device 801b so that the lower surface 6b is in contact with the transport device 801b of the manufacturing apparatus 800. In this state, the resin material 820 melted from the T die 804 is pushed out onto the upper surface 6a of the second sheet 6. As shown in FIG. 21, the resin material 820 is extruded over the entire upper surface 6 a of the second sheet 6. At this time, the resin material 820 is pushed out to the upper surface 6a of the second sheet 6 while being formed into a sheet shape from the slit formed in the T die 804. The resin material 820 thus extruded into a sheet form forms the eighth bonding layer 32 shown in FIG.
[0197] 次に、前記第 8接合層 32の上面 32aに接するように、中間シート 10を重ねて接合 する。 このようにして積層された前記第 2のシート 6と、前記中間シート 10とで積層体 911 が形成される。 Next, the intermediate sheet 10 is overlapped and bonded so as to be in contact with the upper surface 32a of the eighth bonding layer 32. A laminate 911 is formed by the second sheet 6 and the intermediate sheet 10 laminated in this manner.
[0198] 図 22に示す工程では、前記第 2のシート 6が図 10に示すシート体 830に該当し、 前記第 8接合層 32が図 10に示す前記接合層 831に該当し、前記中間シート 10が図 10に示す前記シート体 832に該当する。  In the step shown in FIG. 22, the second sheet 6 corresponds to the sheet body 830 shown in FIG. 10, the eighth bonding layer 32 corresponds to the bonding layer 831 shown in FIG. 10, and the intermediate sheet 10 corresponds to the sheet body 832 shown in FIG.
[0199] 次に図 23に示すように、前記積層体 910の下側に前記中空部形成シート 7を重ね る。このとき、図 23に示すように前記積層体 910に形成された前記第 9接合層 33の 下面 33bが前記中空部形成シート 7の上面 7aと対向するように重ねる。このように、 前記積層体 910と前記中空部形成シート 7とを重ねたものが積層体 911を構成する  Next, as shown in FIG. 23, the hollow portion forming sheet 7 is overlaid on the lower side of the laminate 910. At this time, as shown in FIG. 23, the lower surface 33b of the ninth bonding layer 33 formed on the laminated body 910 is overlapped with the upper surface 7a of the hollow portion forming sheet 7. Thus, the laminate 911 and the hollow part forming sheet 7 are stacked to constitute the laminate 911.
[0200] 次に図 24に示すように、前記積層体 912の前記第 9接合層 33の下面 33bの前記 両側端部領域 33bl、 33b2に、前記中空部形成シート 7の側方から前記中空部形成 シート 7の下面 7bにかけて、前記 Tダイ 804から溶融された前記榭脂材料 820を押し 出して第 4接合層 14を形成する。図 24に示すように、前記榭脂材料 820は、前記中 空部形成シート 7の下面 7bの全面、および前記第 9接合層 33の下面 33bのうち前記 中空部形成シート 7が重なった領域以外の全面、すなわち前記積層体 912の下側全 面にわたって押し出される。 Next, as shown in FIG. 24, the hollow portion is formed from the side of the hollow portion forming sheet 7 on both side end regions 33bl and 33b2 of the lower surface 33b of the ninth bonding layer 33 of the laminate 912. The resin material 820 melted from the T die 804 is extruded onto the lower surface 7b of the forming sheet 7 to form the fourth bonding layer 14. As shown in FIG. 24, the resin material 820 is a region other than the region where the hollow portion forming sheet 7 overlaps the entire lower surface 7b of the inner space forming sheet 7 and the lower surface 33b of the ninth bonding layer 33. , Ie, the entire lower surface of the laminate 912 is extruded.
[0201] 次に、前記積層体 911を構成する前記中間シート 10が前記第 4接合層 14の下面 1 4bに接するように、前記積層体 911を重ねると、前記積層体 911と前記積層体 912と 1S 前記第 4接合層 14を介して接合されて積層体 913が形成される。この積層体 91 3が図 5に示す中空体 301を構成する。  Next, when the laminate 911 is stacked such that the intermediate sheet 10 constituting the laminate 911 is in contact with the lower surface 14b of the fourth bonding layer 14, the laminate 911 and the laminate 912 are stacked. And 1S through the fourth bonding layer 14 to form a stacked body 913. This laminated body 913 constitutes a hollow body 301 shown in FIG.
[0202] 図 25ないし図 27は、図 6に示す前記中空体 401の製造工程を示す工程図であり、 各製造工程における中空体 401を図 2と同様の方向から見た切断断面図である。  25 to 27 are process diagrams showing the manufacturing process of the hollow body 401 shown in FIG. 6, and are sectional views of the hollow body 401 in each manufacturing process as seen from the same direction as FIG. .
[0203] 図 25に示すように、まず前記中空体 301の製造方法を示す図 21に示す工程と同 じ工程によって、図 25に示す前記積層体 910を製造する。  [0203] As shown in FIG. 25, first, the laminate 910 shown in FIG. 25 is manufactured by the same process as the process shown in FIG.
[0204] 図 25に示す工程では、前記第 1のシート 5が図 10に示すシート体 830に該当し、 前記第 7接合層 31が図 10に示す前記接合層 831に該当し、前記中間シート 9が図 1 0に示す前記シート体 832に該当する。また、前記第 9接合層 33は、図 10に示す前 記シート体 832の上に、前記 Tダイ 804を用いて形成されることになる。 In the step shown in FIG. 25, the first sheet 5 corresponds to the sheet body 830 shown in FIG. 10, the seventh bonding layer 31 corresponds to the bonding layer 831 shown in FIG. 10, and the intermediate sheet 9 corresponds to the sheet body 832 shown in FIG. In addition, the ninth bonding layer 33 is formed before the It is formed on the recording sheet 832 using the T-die 804.
[0205] 次に図 26に示すように、前記中空体 301の製造方法を示す図 22に示す工程と同 じ工程によって、図 26に示す前記積層体 911を製造する。  Next, as shown in FIG. 26, the laminate 911 shown in FIG. 26 is manufactured by the same process as the process shown in FIG. 22 showing the method for manufacturing the hollow body 301.
[0206] 図 26に示す工程では、前記第 2のシート 6が図 10に示すシート体 830に該当し、 前記第 8接合層 32が図 10に示す前記接合層 831に該当し、前記中間シート 10が図 10に示す前記シート体 832に該当する。  In the step shown in FIG. 26, the second sheet 6 corresponds to the sheet body 830 shown in FIG. 10, the eighth bonding layer 32 corresponds to the bonding layer 831 shown in FIG. 10, and the intermediate sheet 10 corresponds to the sheet body 832 shown in FIG.
[0207] 次に図 27に示すように、前記中空部形成シート 407Aと 407Bを、幅方向に所定間 隔を空けて配置させた状態で、前記積層体 910の下側に重ねる。このとき、図 23に 示すように前記積層体 910に形成された前記第 9接合層 33の下面 33bが、前記中 空部形成シート 407Aおよび 407Bの上面 407Aaおよび 407Baと対向するように重 ねる。このように、前記積層体 910と前記中空部形成シート 407Aおよび 407Bとを重 ねたものが積層体 914を構成する。  Next, as shown in FIG. 27, the hollow portion forming sheets 407A and 407B are stacked on the lower side of the laminate 910 in a state where they are arranged at a predetermined interval in the width direction. At this time, as shown in FIG. 23, the lower surface 33b of the ninth bonding layer 33 formed on the laminated body 910 overlaps with the upper surfaces 407Aa and 407Ba of the inner space forming sheets 407A and 407B. Thus, the laminate 914 is configured by overlapping the laminate 910 and the hollow portion forming sheets 407A and 407B.
[0208] 次に図 28に示すように、前記積層体 914の前記第 9接合層 33の下面 33bの前記 両側端部領域 33bl、 33b2に、前記中空部形成シート 407A、 407Bの側方から前 記中空部形成シート 407Aおよび 407Bの下面 407Ab、 407Bbに力けて、前記 Tダ ィ 804から溶融された前記榭脂材料 820を押し出して第 4接合層 14を形成する。図 28に示すように、前記榭脂材料 820は、前記中空部形成シート 407Aおよび 407B の下面 407Abおよび 407Bbの全面、および前記第 9接合層 33の下面 33bのうち前 記中空部形成シート 407Aおよび 407Bが重なった領域以外の全面、すなわち前記 積層体 914の下側全面にわたって押し出される。  [0208] Next, as shown in FIG. 28, the hollow portion forming sheets 407A and 407B are front-facing from the side portions 33bl and 33b2 of the lower surface 33b of the ninth bonding layer 33 of the laminate 914. The hollow portion forming sheets 407A and 407B are pressed against the lower surfaces 407Ab and 407Bb to extrude the resin material 820 melted from the T die 804 to form the fourth bonding layer 14. As shown in FIG. 28, the resin material 820 includes the hollow portion forming sheets 407A and 407B, the lower surfaces 407Ab and 407Bb of the hollow portion forming sheets 407A, and the lower surface 33b of the ninth bonding layer 33. The entire surface other than the region where 407B overlaps, that is, the entire lower surface of the laminate 914 is extruded.
[0209] 次に、前記積層体 911を構成する前記中間シート 10が前記第 4接合層 14の下面 1 4bに接するように、前記積層体 911を重ねると、前記積層体 911と前記積層体 914と 1S 前記第 4接合層 14を介して接合されて積層体 915が形成される。この積層体 91 5が図 5に示す中空体 401を構成する。  [0209] Next, when the laminate 911 is stacked such that the intermediate sheet 10 constituting the laminate 911 is in contact with the lower surface 14b of the fourth bonding layer 14, the laminate 911 and the laminate 914 are stacked. And 1S through the fourth bonding layer 14 to form a laminated body 915. This laminated body 915 constitutes a hollow body 401 shown in FIG.
[0210] 図 8に示すシート体 601の製造方法は、図 2に示す前記中空体 1の製造方法を示 す図 14に示す工程の後に、図 14に示す切断線 C— C線で切断し、この切断端面 C1 を上方向（図示 Z1方向）に向力つて開くとともに、切断端面 C2を下方向（図示 Z2方 向）に向力つて開くと、前記図 8に示す前記シート体 601が製造される。 [0211] または、図 3に示す中空体 101の製造方法を示す図 18に示す製造工程の後に、 図 18に示す切断線 C— C線で切断し、この切断端面 C1を上方向（図示 Z1方向）に 向かって開くとともに、切断端面 C2を下方向（図示 Z2方向）に向力つて開くと、前記 図 8に示す前記シート体 601が製造される。 [0210] The sheet 601 shown in FIG. 8 is manufactured by cutting along the cutting line CC shown in FIG. 14 after the step shown in FIG. 14 showing the manufacturing method of the hollow body 1 shown in FIG. When the cut end face C1 is opened with a force directed upward (Z1 direction in the figure) and the cut end surface C2 is opened with a force directed downward (Z2 direction in the figure), the sheet body 601 shown in FIG. 8 is manufactured. Is done. [0211] Alternatively, after the manufacturing process shown in FIG. 18 showing the manufacturing method of the hollow body 101 shown in FIG. 3, cut along the cutting line C—C shown in FIG. The sheet body 601 shown in FIG. 8 is manufactured when the cut end surface C2 is opened downwardly (in the direction Z2 in the drawing).
[0212] または、図 4に示す中空体 201の製造方法を示す図 20に示す製造工程の後に、 図 20に示す切断線 C— C線で切断し、この切断端面 C1を上方向（図示 Z1方向）に 向かって開くとともに、切断端面 C2を下方向（図示 Z2方向）に向力つて開くと、前記 図 8に示す前記シート体 601が製造される。  [0212] Alternatively, after the manufacturing process shown in FIG. 20 showing the manufacturing method of the hollow body 201 shown in FIG. 4, cut along the cutting line C—C shown in FIG. The sheet body 601 shown in FIG. 8 is manufactured when the cut end surface C2 is opened downwardly (in the direction Z2 in the drawing).
[0213] または、図 5に示す中空体 301の製造方法を示す図 24に示す製造工程の後に、 図 24に示す切断線 C— C線で切断し、この切断端面 C1を上方向（図示 Z1方向）に 向かって開くとともに、切断端面 C2を下方向（図示 Z2方向）に向力つて開くと、前記 図 8に示す前記シート体 601が製造される。  [0213] Alternatively, after the manufacturing process shown in FIG. 24, which shows the manufacturing method of the hollow body 301 shown in FIG. 5, cut along the cutting line C—C shown in FIG. The sheet body 601 shown in FIG. 8 is manufactured when the cut end surface C2 is opened downwardly (in the direction Z2 in the drawing).
[0214] また、図 9に示す構造の前記シート積層体 500によって構成される前記シート体 60 1は、以下の工程で製造することができる。  [0214] Further, the sheet body 601 constituted by the sheet laminate body 500 having the structure shown in FIG. 9 can be manufactured by the following steps.
[0215] まず図 29に示すように、まず第 1のシート 5を、上面 5aが前記製造装置 800の前記 搬送装置 801bに接するように前記搬送装置 801b上に載置する。この状態で、前記 第 1のシート 5の下面 5bに、前記 Tダイ 804から溶融された前記榭脂材料 820を押し 出す。図 29に示すように、前記榭脂材料 820は、前記第 1のシート 5の前記下面 5b の全面にわたって押し出される。このとき、前記榭脂材料 820は、前記 Tダイ 804に 形成されたスリットからシート状に成型されながら、前記第 1のシート 5の前記下面 5b に押し出される。このようにしてシート状に押し出された前記榭脂材料 820が、図 9に 示す前記第 7接合層 31を構成する。  First, as shown in FIG. 29, first, the first sheet 5 is placed on the transport device 801b so that the upper surface 5a is in contact with the transport device 801b of the manufacturing apparatus 800. In this state, the resin material 820 melted from the T die 804 is pushed out to the lower surface 5b of the first sheet 5. As shown in FIG. 29, the resin material 820 is extruded over the entire surface of the lower surface 5b of the first sheet 5. At this time, the resin material 820 is pushed out to the lower surface 5b of the first sheet 5 while being formed into a sheet shape from a slit formed in the T die 804. The resin material 820 extruded in the form of a sheet in this way constitutes the seventh bonding layer 31 shown in FIG.
[0216] 次に、前記第 7接合層 31の下面 31bに接するように、中間シート 9を重ねる。  [0216] Next, the intermediate sheet 9 is stacked so as to be in contact with the lower surface 31b of the seventh bonding layer 31.
図 29に示す工程では、前記第 1のシート 5が図 10に示すシート体 830に該当し、 前記第 7接合層 31が図 10に示す前記接合層 831に該当し、前記中間シート 9が図 1 0に示す前記シート体 832に該当する。  29, the first sheet 5 corresponds to the sheet body 830 illustrated in FIG. 10, the seventh bonding layer 31 corresponds to the bonding layer 831 illustrated in FIG. 10, and the intermediate sheet 9 is illustrated in FIG. This corresponds to the sheet body 832 shown in FIG.
[0217] このようにして積層された前記第 1のシート 5と、前記中間シート 9とで積層体 916が 形成される。 [0218] 次に図 30に示すように、第 2のシート 6を、下面 6bが前記製造装置 800の前記搬 送装置 801bに接するように前記搬送装置 801b上に載置する。この状態で、前記第 2のシート 6の上面 6aに、前記 Tダイ 804から溶融された前記榭脂材料 820を押し出 す。図 29に示すように、前記榭脂材料 820は、前記第 2のシート 6の前記上面 6aの 全面にわたって押し出される。このとき、前記榭脂材料 820は、前記 Tダイ 804に形 成されたスリットからシート状に成型されながら、前記第 2のシート 6の前記上面 6aに 押し出される。このようにしてシート状に押し出された前記榭脂材料 820が、図 9に示 す前記第 8接合層 32を構成する。 [0217] A laminate 916 is formed by the first sheet 5 and the intermediate sheet 9 laminated in this manner. Next, as shown in FIG. 30, the second sheet 6 is placed on the transport device 801b so that the lower surface 6b is in contact with the transport device 801b of the manufacturing apparatus 800. In this state, the resin material 820 melted from the T die 804 is pushed out onto the upper surface 6a of the second sheet 6. As shown in FIG. 29, the resin material 820 is extruded over the entire upper surface 6a of the second sheet 6. At this time, the resin material 820 is pushed out to the upper surface 6a of the second sheet 6 while being formed into a sheet shape from the slit formed in the T die 804. The resin material 820 thus extruded into a sheet forms the eighth bonding layer 32 shown in FIG.
[0219] 次に、前記第 8接合層 32の上面 32aに接するように、中間シート 10を重ねて接合 する。  [0219] Next, the intermediate sheet 10 is overlapped and bonded so as to be in contact with the upper surface 32a of the eighth bonding layer 32.
このようにして積層された前記第 2のシート 6と、前記中間シート 10とで積層体 917 が形成される。  A laminated body 917 is formed by the second sheet 6 and the intermediate sheet 10 laminated in this manner.
[0220] 図 30に示す工程では、前記第 2のシート 6が図 10に示すシート体 830に該当し、 前記第 8接合層 32が図 10に示す前記接合層 831に該当し、前記中間シート 10が図 10に示す前記シート体 832に該当する。  In the step shown in FIG. 30, the second sheet 6 corresponds to the sheet body 830 shown in FIG. 10, the eighth bonding layer 32 corresponds to the bonding layer 831 shown in FIG. 10, and the intermediate sheet 10 corresponds to the sheet body 832 shown in FIG.
[0221] 次に図 31に示すように、前記積層体 916を構成する前記中間シート 9の前記下面 9bに、前記 Tダイ 804から溶融された前記榭脂材料 820を押し出して第 4接合層 14 を形成する。図 31に示すように、前記榭脂材料 820は、前記中間シート 9の下面 9b の全面、すなわち前記積層体 916の下側全面にわたって押し出される。  Next, as shown in FIG. 31, the resin material 820 melted from the T die 804 is extruded onto the lower surface 9b of the intermediate sheet 9 constituting the laminated body 916, so that the fourth bonding layer 14 Form. As shown in FIG. 31, the resin material 820 is extruded over the entire lower surface 9b of the intermediate sheet 9, that is, the entire lower surface of the laminate 916.
[0222] 次に、前記第 4接合層 14の下面 14bに接するように、折り曲げシート 503を重ねる と、前記積層体 916と前記折り曲げシート 503とが、前記第 4接合層 14を介して接合 されて積層体 918が形成される。このとき、図 9で説明したように、前記折り曲げシート 503の幅寸法 W7よりも前記中間シート 9の幅寸法 W3の方が大きいため（図 9を参照 ) ,図 31に示すように、前記中間シート 9の前記下面 9bの側端部領域 9blには、前 記折り曲げシート 503が対向しない。また、前記折り曲げシート 503の前記側端部領 域 9bl側の側方には、前記第 4接合層 14が形成される。  Next, when the folded sheet 503 is stacked so as to contact the lower surface 14b of the fourth bonding layer 14, the laminate 916 and the bent sheet 503 are bonded via the fourth bonding layer 14. Thus, a laminate 918 is formed. At this time, as described in FIG. 9, since the width dimension W3 of the intermediate sheet 9 is larger than the width dimension W7 of the folded sheet 503 (see FIG. 9), as shown in FIG. The bent sheet 503 does not face the side end region 9bl of the lower surface 9b of the sheet 9. Further, the fourth bonding layer 14 is formed on the side of the bent sheet 503 on the side end region 9bl side.
[0223] 次に図 32に示すように、前記積層体 918を構成する前記第 4接合層 14の下面 14b および前記折り曲げシート 503の折り曲げ下面 503bの表面に、前記 Tダイ 804から 溶融された前記榭脂材料 820を押し出して第 8接合層 32を形成する。図 32に示す ように、前記榭脂材料 820は、前記第 4接合層 14の下面 14bおよび前記折り曲げシ ート 503の折り曲げ下面 503bの表面、すなわち前記積層体 918の下側全面にわた つて押し出される。 Next, as shown in FIG. 32, from the T die 804 on the surface of the lower surface 14b of the fourth bonding layer 14 and the folded lower surface 503b of the folded sheet 503 constituting the laminate 918. The molten resin material 820 is extruded to form the eighth bonding layer 32. As shown in FIG. 32, the resin material 820 is extruded over the lower surface 14b of the fourth bonding layer 14 and the surface of the folded lower surface 503b of the folded sheet 503, that is, the entire lower surface of the laminate 918. It is.
[0224] 次に、前記第 8接合層 32の上面 32aに接するように、前記積層体 917を重ねると、 前記積層体 917と前記積層体 918とが、前記第 8接合層 32を介して接合されて積層 体 919が形成される。この積層体 915が図 5に示すシート積層体 500を構成する。  Next, when the stacked body 917 is stacked so as to be in contact with the upper surface 32a of the eighth bonding layer 32, the stacked body 917 and the stacked body 918 are bonded via the eighth bonding layer 32. Thus, a laminate 919 is formed. The laminate 915 constitutes a sheet laminate 500 shown in FIG.
[0225] 図 29ないし 32に示す工程によって製造されたシート積層体 500では、前記中間シ ート 9と前記折り曲げシート 503の前記折り曲げ上面 503aとがシート積層体 504を構 成し、前記中間シート 10と前記折り曲げ下面 503bとがシート積層体 505を構成する  [0225] In the sheet laminate 500 manufactured by the steps shown in Figs. 29 to 32, the intermediate sheet 9 and the folded upper surface 503a of the folded sheet 503 constitute a sheet laminate 504, and the intermediate sheet 10 and the bent lower surface 503b constitute a sheet laminate 505.
[0226] 前記シート積層体 500では、シート積層体 504を図 32に示す上方向（図示 Z1方向 )に向力つて開くとともに、シート積層体 505を図示下方向（図示 Z2方向）に向かって 開くと、前記図 8に示す前記シート体 601が製造される。 [0226] In the sheet laminate 500, the sheet laminate 504 is opened by force in the upward direction (Z1 direction in the figure) shown in FIG. 32, and the sheet laminate 505 is opened in the downward direction (Z2 direction in the figure). Then, the sheet body 601 shown in FIG. 8 is manufactured.
[0227] 本発明のシート体 601の製造方法では、前記 Tダイ 804によって前記各シート 5、 6 、 7、 8、 9、 10、あるいは前記折り曲げシート 503を積層し、これを開くだけで、前記 中空体 1、 101、 201、 301、あるいは前記シート積層体 500の約 2倍の大きさの幅寸 法を有するシート体 601を製造することができる。  [0227] In the method for manufacturing the sheet body 601 of the present invention, the sheets 5, 6, 7, 8, 9, 10, or the folded sheet 503 are stacked by the T die 804, and the folded sheet 503 is simply opened. The hollow body 1, 101, 201, 301 or the sheet body 601 having a width dimension about twice as large as the sheet laminate 500 can be manufactured.
[0228] したがって、低廉な製造コストで製造することができるとともに、製造スペースの確保 を容易にすることができる。  [0228] Therefore, it is possible to manufacture at a low manufacturing cost and to easily secure a manufacturing space.
[0229] なお、前記中空体 1、 101、 201、 301、 401、およびシート体 601を形成するため のシート積層体 500の製造方法として、各シート 5、 6、 7、 8、 207、 208、 407A, 40 7B、 503の接合を、溶融押し出しラミネート法によって接合するものを例として説明し たが、本発明はこれに限定されるものではなぐ例えば熱溶着法やホットメルト接着剤 などの接着剤によって接合しても良い。  [0229] In addition, as a method for producing the sheet laminate 500 for forming the hollow bodies 1, 101, 201, 301, 401 and the sheet body 601, the sheets 5, 6, 7, 8, 207, 208, The example of joining 407A, 407B, and 503 is described by joining by melt extrusion laminating method, but the present invention is not limited to this. For example, an adhesive such as a heat welding method or a hot melt adhesive May be joined.
図面の簡単な説明  Brief Description of Drawings
[0230] [図 1]本発明の中空体の第 1実施形態を示す斜視図、 FIG. 1 is a perspective view showing a first embodiment of a hollow body of the present invention,
[図 2]図 1に示す中空体の II II線での切断断面図、 [図 3]本発明の第 2実施形態の中空体を幅方向に切断した切断断面、 [Fig.2] Cross section of the hollow body shown in Fig. FIG. 3 is a cross-sectional view of a hollow body according to a second embodiment of the present invention cut in the width direction,
[図 4]本発明の第 3実施形態の中空体を幅方向に切断した切断断面、  FIG. 4 is a cross-sectional view of a hollow body according to a third embodiment of the present invention cut in the width direction,
[図 5]本発明の第 4実施形態の中空体を幅方向に切断した切断断面、  FIG. 5 is a cross-sectional view of a hollow body according to a fourth embodiment of the present invention cut in the width direction;
圆 6]本発明の第 2実施形態を示す斜視図、 圆 6] A perspective view showing a second embodiment of the present invention,
[図 7]図 6に示す中空体の VII— VII線での切断断面図、  FIG. 7 is a cross-sectional view taken along line VII-VII of the hollow body shown in FIG.
[図 8]本発明のシート体を示す斜視図、  FIG. 8 is a perspective view showing a sheet body of the present invention,
[図 9]図 8に示すシート体を形成するためのシート積層体を幅方向に切断した切断断 面図、  FIG. 9 is a cross-sectional view of the sheet laminate for forming the sheet shown in FIG. 8, cut in the width direction;
[図 10]図 1に示す中空体を製造するための製造装置、および製造工程を示すーェ 程図、  [FIG. 10] A production apparatus for producing the hollow body shown in FIG.
[図 11]図 1に示す中空体の製造工程を示す工程図、  FIG. 11 is a process diagram showing a manufacturing process of the hollow body shown in FIG.
[図 12]図 11に示す工程の次の工程を示す工程図、 FIG. 12 is a process diagram showing the next process after the process shown in FIG.
[図 13]図 12に示す工程の次の工程を示す工程図、 FIG. 13 is a process diagram showing the next process after the process shown in FIG.
[図 14]図 13に示す工程の次の工程を示す工程図、 FIG. 14 is a process chart showing the next process of the process shown in FIG.
[図 15]図 3に示す中空体の製造工程を示す工程図、 FIG. 15 is a process diagram showing a production process of the hollow body shown in FIG.
[図 16]図 15に示す工程の次の工程を示す工程図、 FIG. 16 is a process diagram showing the next process after the process shown in FIG.
[図 17]図 16に示す工程の次の工程を示す工程図、 FIG. 17 is a process diagram showing a process subsequent to the process shown in FIG.
[図 18]図 17に示す工程の次の工程を示す工程図、 FIG. 18 is a process diagram showing the next process after the process shown in FIG.
[図 19]図 4に示す中空体の製造工程を示す工程図、 FIG. 19 is a process diagram showing a manufacturing process of the hollow body shown in FIG.
[図 20]図 19に示す工程の次の工程を示す工程図、 FIG. 20 is a process chart showing the next process of the process shown in FIG.
[図 21]図 5に示す中空体の製造工程を示す工程図、 FIG. 21 is a process diagram showing a production process of the hollow body shown in FIG.
[図 22]図 21に示す工程の次の工程を示す工程図、 FIG. 22 is a process diagram showing a process subsequent to the process shown in FIG.
[図 23]図 22に示す工程の次の工程を示す工程図、 FIG. 23 is a process diagram showing a process subsequent to the process shown in FIG.
[図 24]図 23に示す工程の次の工程を示す工程図、 FIG. 24 is a process diagram showing the next process of the process shown in FIG.
[図 25]図 7に示す中空体の製造工程を示す工程図、 FIG. 25 is a process diagram showing a production process of the hollow body shown in FIG.
[図 26]図 25に示す工程の次の工程を示す工程図、 FIG. 26 is a process diagram showing the next process of the process shown in FIG.
[図 27]図 26に示す工程の次の工程を示す工程図、 FIG. 27 is a process diagram showing the next process of the process shown in FIG.
[図 28]図 27に示す工程の次の工程を示す工程図、 [図 29]図 9に示すシート積層体の製造工程を示す工程図、 [図 30]図 29に示す工程の次の工程を示す工程図、 FIG. 28 is a process chart showing the next process of the process shown in FIG. FIG. 29 is a process diagram showing a manufacturing process of the sheet laminate shown in FIG. 9, FIG. 30 is a process diagram showing a process subsequent to the process shown in FIG.
[図 31]図 30に示す工程の次の工程を示す工程図、 FIG. 31 is a process diagram showing a process subsequent to the process shown in FIG.
[図 32]図 31に示す工程の次の工程を示す工程図、 符号の説明 FIG. 32 is a process chart showing the next process of the process shown in FIG.
1, 101, 201， 301， 401 中空体  1, 101, 201, 301, 401 Hollow body
2 中空部  2 Hollow part
7、 8、 207, 208、 407A、 407B 中空部形成シー卜 7, 8, 207, 208, 407A, 407B Hollow forming sheet
9, 10 中間シート 9, 10 Intermediate sheet
11 第 1接合層  11 First bonding layer
12 第 2接合層  12 Second bonding layer
13 第 3接合層  13 Third bonding layer
14 第 4接合層  14 Fourth bonding layer
15 第 5接合層  15 5th bonding layer
30 第 6接合層  30 6th bonding layer
31 第 7接合層  31 7th bonding layer
32 第 8接合層  32 8th bonding layer
33 第 9接合層  33 9th bonding layer
34 第 10接合層  34 10th bonding layer
500 シート積層体  500 sheet laminate
503 折り曲げシート  503 folded sheet
504, 505 シート積層体  504, 505 sheet laminate
601 シート体  601 sheet body
602 下層シート  602 Lower layer sheet
603 上層シート  603 Upper sheet
604 第 1のシート半体  604 first seat half
604e, 605e 内側端領域  604e, 605e inner edge area
605 第 2のシート半体 800 製造装置 605 second sheet half 800 Production equipment
804 Tダイ 804 T die
901, 902, 903, 904， 905, 906, 907, 908, 909, 910, 911， 912， 913, 915, 916, 917, 918, 919 積層体  901, 902, 903, 904, 905, 906, 907, 908, 909, 910, 911, 912, 913, 915, 916, 917, 918, 919 Laminate

Claims

請求の範囲 The scope of the claims
[1] 上下方向で対向する複数のシートを有し、前記複数のシートは前記シート間に形 成された接合層を介して接合されており、上下方向で対向する前記シート間には、前 記シートよりも幅寸法が小さい中空部形成シートが介挿されており、前記中空部形成 シートの側方で上下方向で対向する前記シートが前記接合層で形成された接合領 域を介して接合されており、前記前記中空部形成シートと前記シートとの間に中空部 が形成されて ヽることを特徴とする中空体。  [1] It has a plurality of sheets opposed in the vertical direction, and the plurality of sheets are bonded through a bonding layer formed between the sheets, A hollow part forming sheet having a width smaller than that of the sheet is inserted, and the sheet facing in the vertical direction on the side of the hollow part forming sheet is joined through a joining region formed by the joining layer. The hollow body is characterized in that a hollow portion is formed between the hollow portion forming sheet and the sheet.
[2] 前記中空部形成シートは 1枚であり、前記中空部形成シートの一方の面が前記接 合層を介してシートと接合されており、前記中空部形成シートの他方の面と前記シー トとの間に、前記中空部が形成されている請求項 1記載の中空体。  [2] The number of the hollow portion forming sheet is one, and one surface of the hollow portion forming sheet is joined to the sheet through the bonding layer, and the other surface of the hollow portion forming sheet is connected to the sheet. 2. The hollow body according to claim 1, wherein the hollow portion is formed between the first and second members.
[3] 上下方向で対向する 2枚の中空部形成シートを有し、 2枚の前記中空部形成シート の間に前記中空部が形成されて ヽる請求項 1記載の中空体。 [3] The hollow body according to claim 1, wherein the hollow body has two hollow portion forming sheets opposed in the vertical direction, and the hollow portion is formed between the two hollow portion forming sheets.
[4] 前記中空部の側方には、上下方向で対向する中空部形成シートと前記シートとを 接合する接合層で形成された接合領域が複数形成されて 、る請求項 1な 、し 3の 、 ずれかに記載の中空体。 [4] The side of the hollow part is formed with a plurality of joining regions formed by a joining part that joins the hollow part forming sheet and the sheet facing each other in the vertical direction. The hollow body according to any one of the above.
[5] 前記シートは幅寸法が異なる複数のシートを有しており、幅寸法が異なる前記シー ト体どうしが、前記接合領域を介して接合されて 、る請求項 1な 、し 4の 、ずれかに 記載の中空体。 [5] The sheet according to claim 1, wherein the sheet has a plurality of sheets having different width dimensions, and the sheet bodies having different width dimensions are joined together via the joining region. The hollow body according to any one of the above.
[6] 幅寸法が異なる 2枚の中空部形成シートを有しており、幅寸法が大きい方の前記中 空部形成シートが、前記接合領域で前記シートと接合されている請求項 1ないし 5の いずれかに記載の中空体。  [6] The two hollow portion forming sheets having different width dimensions are provided, and the hollow portion forming sheet having a larger width dimension is joined to the sheet in the joining region. The hollow body according to any one of the above.
[7] 複数の前記中空部形成シートが幅方向に間隔を空けて位置し、複数の前記中空 部が幅方向に間隔を空けて形成されて 、る請求項 1な 、し 6の 、ずれかに記載の中 空体。 [7] The plurality of hollow portion forming sheets are positioned at intervals in the width direction, and the plurality of hollow portions are formed at intervals in the width direction. The hollow body described in.
[8] 下層シートと、前記下層シートの上に接合された上層シートとを有し、前記上層シー トは第 1のシート半体と第 2のシート半体とが幅方向に並んで配列されて形成されて おり、前記第 1のシート半体の内側端領域と、前記第 2のシート半体の内側端領域と 1S 前記下層シートの上面に対して上方側に折り曲げられた状態で接合され、この接 合部が前端から後端まで連続して形成されており、 [8] It has a lower layer sheet and an upper layer sheet bonded onto the lower layer sheet, and the upper layer sheet has a first sheet half and a second sheet half arranged in the width direction. The inner end region of the first sheet half, the inner end region of the second sheet half, and 1S are joined in a state of being bent upward with respect to the upper surface of the lower sheet. This connection The joint is formed continuously from the front end to the rear end,
前記下層シートは複数のシートが積層されたシート積層体で形成されていることを 特徴とするシート体。  The lower layer sheet is formed of a sheet laminate in which a plurality of sheets are laminated.
[9] 以下の工程を有することを特徴とする中空体の製造方法。  [9] A method for producing a hollow body comprising the following steps.
(a)シートの上に接合層を形成する工程と、  (a) forming a bonding layer on the sheet;
(b)前記接合層の上に、前記シートよりも幅寸法が小さい中空部形成シートを重ね、 前記接合層を介して前記中空部形成シートと前記シートとを接合する工程と、 (b) Overlying the hollow portion forming sheet having a smaller width than the sheet on the joining layer, and joining the hollow portion forming sheet and the sheet via the joining layer;
(c)前記中空部形成シートの上に他のシートを重ね、前記中空部形成シートの側方 で、前記接合層で形成された接合領域を介して前記シートと前記他のシートとを接合 し、前記中空部形成シートと前記シートとの間に中空部を形成する工程。 (c) Another sheet is stacked on the hollow portion forming sheet, and the sheet and the other sheet are bonded to each other through the bonding region formed by the bonding layer on the side of the hollow portion forming sheet. And a step of forming a hollow portion between the hollow portion forming sheet and the sheet.
[10] 前記 (b)工程で前記中空部形成シートを 1枚のシートで形成し、前記中空部シート の一方の面を、前記接合層を介して前記シートと接合し、前記 (c)工程で、前記中空 部形成シートの他方の面と前記シートとの間に、前記中空部を形成する請求項 9記 載の中空体の製造方法。  [10] In the step (b), the hollow portion forming sheet is formed as a single sheet, and one surface of the hollow portion sheet is joined to the sheet via the joining layer, and the step (c) The method for producing a hollow body according to claim 9, wherein the hollow portion is formed between the other surface of the hollow portion forming sheet and the sheet.
[11] 前記 (b)工程で前記中空部形成シートを上下方向で対向する 2枚のシートで形成 し、一方の前記中空部シートを、前記接合層を介して前記シートと接合し、前記 (c) 工程で、他方の前記中空部形成シートの上に前記他のシートを重ね、 2枚の前記中 空部形成シートの側方で、前記接合層を介して前記シートと前記他のシートとを接合 し、 2枚の前記中空部形成シートの間に中空部を形成する請求項 9記載の中空体の 製造方法。  [11] In the step (b), the hollow portion forming sheet is formed of two sheets facing each other in the vertical direction, and the one hollow portion sheet is joined to the sheet via the joining layer, c) In the step, the other sheet is overlaid on the other hollow part forming sheet, and the sheet and the other sheet are disposed on the side of the two hollow part forming sheets via the bonding layer. 10. The method for producing a hollow body according to claim 9, wherein a hollow portion is formed between the two hollow portion forming sheets.
[12] 前記 (c)工程の後に、  [12] After the step (c),
(d)前記シートと前記中空部形成シートとで形成されるシート積層体の上または下に 他の接合層を形成し、前記他の接合層に接するようにシートを積層し、このとき前記 他の接合層で形成された他の接合領域を前記シート積層体の側方に形成し、前記 他の接合領域を介して前記シート積層体と前記シートとを接合する工程、  (d) forming another bonding layer on or under the sheet laminate formed by the sheet and the hollow portion forming sheet, and laminating the sheet so as to contact the other bonding layer, Forming another joining region formed of the joining layer on the side of the sheet laminate, and joining the sheet laminate and the sheet through the other joining region;
を有する請求項 9な 、し 11の 、ずれかに記載の中空体の製造方法。  The method for producing a hollow body according to any one of claims 9 to 11, which comprises:
[13] 前記 (a)工程の前記シートと、前記 (d)工程の前記シートの幅寸法が異なる請求項 12記載の中空体の製造方法。 13. The method for producing a hollow body according to claim 12, wherein the width dimension of the sheet in the step (a) is different from the width dimension of the sheet in the step (d).
[14] 前記 (b)工程で、前記接合層の上に幅寸法が異なる 2枚の中空部形成シートを重 ね、前記 (c)工程で、幅寸法が大きい方の前記中空部形成シートが、前記接合領域 で前記シートと接合される請求項 9ないし 13のいずれかに記載の中空体の製造方法 [14] In step (b), two hollow part forming sheets having different width dimensions are superimposed on the bonding layer, and in step (c), the hollow part forming sheet having a larger width dimension is overlapped. The method for producing a hollow body according to any one of claims 9 to 13, wherein the hollow body is joined to the sheet in the joining region.
[15] 前記 (b)工程で、前記接合層の上に、複数の前記中空部形成シートを幅方向に間 隔を空けて重ね、前記 (c)工程で、幅方向に間隔を空けて位置する複数の前記中空 部を形成する請求項 9ないし 14のいずれかに記載の中空体の製造方法。 [15] In the step (b), the plurality of hollow portion forming sheets are stacked on the bonding layer with a gap in the width direction, and in the step (c), the gap portions are spaced in the width direction. The method for producing a hollow body according to claim 9, wherein a plurality of the hollow portions are formed.
[16] 以下の工程を有することを特徴とするシート体の製造方法。  [16] A method for producing a sheet body comprising the following steps.
(e)シートの上に接合層を形成する工程と、  (e) forming a bonding layer on the sheet;
(f)前記接合層の上に、前記シートよりも幅寸法が小さい中空部形成シートを重ね、 前記接合層を介して前記中空部形成シートと前記シートとを接合する工程と、 (f) A step of superposing a hollow part forming sheet having a width dimension smaller than that of the sheet on the joining layer, and joining the hollow part forming sheet and the sheet via the joining layer;
(g)前記中空部形成シートの上に他のシートを重ね、前記中空部形成シートの側方 で、前記接合層で形成された接合領域を介して前記シートと前記他のシートとを接合 し、前記中空部形成シートと前記シートとの間に中空部を形成する工程と、 (g) Another sheet is stacked on the hollow part forming sheet, and the sheet and the other sheet are joined to each other through the joining region formed by the joining layer on the side of the hollow part forming sheet. Forming a hollow part between the hollow part forming sheet and the sheet;
(h)前記中空体の前記中空部の上面または下面または側面の少なくとも一つを長手 方向に切断する工程。  (h) A step of cutting at least one of an upper surface, a lower surface, or a side surface of the hollow portion of the hollow body in a longitudinal direction.
[17] 以下の工程を有することを特徴とするシート体の製造方法。  [17] A method for producing a sheet body comprising the following steps.
(i)シートの上に接合層を形成する工程と、  (i) forming a bonding layer on the sheet;
(j)前記接合層の上に、長手方向に沿って幅方向を 2分する折り曲げ線で折り曲げら れ両側端部が上下方向で対向して側方に開放端が形成された折り曲げシートを重 ね、前記接合層を介して前記折り曲げシートと前記シートとを接合する工程と、 (k)前記折り曲げシートの上に他のシートを重ね、前記折り曲げシートの側方で、前 記接合層で形成された接合領域を介して前記シートと前記他のシートとを接合する 工程。  (j) Over the bonding layer, a folding sheet having a folding line that bisects the width direction along the longitudinal direction and with both end portions facing each other in the vertical direction and an open end formed on the side is overlapped. A step of joining the folded sheet and the sheet through the joining layer; and (k) stacking another sheet on the folded sheet and forming the joining layer on the side of the folded sheet. Bonding the sheet and the other sheet through the bonded region.
PCT/JP2005/018444 2005-10-05 2005-10-05 Hollow body, sheet body and process for producing these WO2007043146A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2005/018444 WO2007043146A1 (en) 2005-10-05 2005-10-05 Hollow body, sheet body and process for producing these
JP2007539767A JP4847964B2 (en) 2005-10-05 2005-10-05 Hollow body and method for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/018444 WO2007043146A1 (en) 2005-10-05 2005-10-05 Hollow body, sheet body and process for producing these

Publications (1)

Publication Number Publication Date
WO2007043146A1 true WO2007043146A1 (en) 2007-04-19

Family

ID=37942416

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2005/018444 WO2007043146A1 (en) 2005-10-05 2005-10-05 Hollow body, sheet body and process for producing these

Country Status (2)

Country Link
JP (1) JP4847964B2 (en)
WO (1) WO2007043146A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019141707A (en) * 2015-04-21 2019-08-29 キョーラク株式会社 panel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0623861A (en) * 1992-07-07 1994-02-01 Dainippon Printing Co Ltd Air bag and production thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0623861A (en) * 1992-07-07 1994-02-01 Dainippon Printing Co Ltd Air bag and production thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019141707A (en) * 2015-04-21 2019-08-29 キョーラク株式会社 panel

Also Published As

Publication number Publication date
JP4847964B2 (en) 2011-12-28
JPWO2007043146A1 (en) 2009-04-16

Similar Documents

Publication Publication Date Title
KR100457874B1 (en) Side gadget bag and its manufacturing method
JPH01200953A (en) Laminate for packaging and manufacture thereof
CN105103355B (en) Water transmits composite construction
CN107531379A (en) For forming the method and system of packaging
JP2007059222A (en) Multi-layered flexible flat cable and manufacturing method of the same
JP2011046082A (en) Device of manufacturing pouch container
WO2007043146A1 (en) Hollow body, sheet body and process for producing these
KR20090122459A (en) Method of and apparatus for manufacturing seal film, method of manufacturing container with inner seal, inner seal material, and method of sealing container with cap by use of the inner seal material
JPH09187874A (en) Method and apparatus for manufacturing bag
US20040112785A1 (en) Packaging bag
JP2001139038A (en) Tear guide means, bag body and manufacturing method thereof
JP2022105542A (en) Hollow structure and method of manufacturing the same
JP4495731B2 (en) Hollow body and method for producing the same
JP4923316B2 (en) Method and apparatus for manufacturing deformed pouch
JP5767761B1 (en) Bag making apparatus and bag making method
JP2022023460A (en) Laminate for packaging bags and self-standing bag
JP4303376B2 (en) Molding method of multi-layer molded product by press
JP7403262B2 (en) Packaging bags and packaging bag manufacturing methods
JP4478232B2 (en) Machine for manufacturing a cylinder sleeve
JP2003300263A (en) Manufacturing method for gusseted flat bag
JP6917882B2 (en) Manufacturing method of bag with zipper tape and manufacturing equipment of bag with zipper tape
JP3563380B2 (en) Bag with synthetic resin zipper
JP4131141B2 (en) Paper container and its manufacturing method
JP2004067229A (en) Tray shape container and method of manufacturing the same
JPH11179819A (en) Method for treating end face of liquid paper container

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2007539767

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 05790568

Country of ref document: EP

Kind code of ref document: A1