JPH0615210B2 - 自動車用サンバイザの製造方法 - Google Patents

自動車用サンバイザの製造方法

Info

Publication number
JPH0615210B2
JPH0615210B2 JP27402487A JP27402487A JPH0615210B2 JP H0615210 B2 JPH0615210 B2 JP H0615210B2 JP 27402487 A JP27402487 A JP 27402487A JP 27402487 A JP27402487 A JP 27402487A JP H0615210 B2 JPH0615210 B2 JP H0615210B2
Authority
JP
Japan
Prior art keywords
electrode body
sun visor
cutting
skin
manufacturing
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
JP27402487A
Other languages
English (en)
Other versions
JPS6451922A (en
Inventor
嘉和 保田
一昭 坪田
史郎 谷本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Delta Kogyo Co Ltd
Original Assignee
Delta Kogyo Co Ltd
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 Delta Kogyo Co Ltd filed Critical Delta Kogyo Co Ltd
Priority to JP27402487A priority Critical patent/JPH0615210B2/ja
Priority to KR1019880005379A priority patent/KR910003585B1/ko
Priority to DE19883883839 priority patent/DE3883839T2/de
Priority to EP19880107607 priority patent/EP0291854B1/en
Publication of JPS6451922A publication Critical patent/JPS6451922A/ja
Priority to US07/469,672 priority patent/US4960479A/en
Publication of JPH0615210B2 publication Critical patent/JPH0615210B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • 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
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7441—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc for making welds and cuts of other than simple rectilinear form
    • 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
    • B29C66/137—Beaded-edge joints or bead seals
    • 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
    • B29C66/433—Casing-in, i.e. enclosing an element between two sheets by an outlined seam
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81413—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being non-symmetrical
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81417—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled being V-shaped
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81419—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • 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
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • 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
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • B60J3/02—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in position
    • B60J3/0204—Sun visors
    • B60J3/0278—Sun visors structure of the body
    • 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
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
    • B29C65/7451—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool the severing tool and the welding tool being movable with respect to one-another
    • 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
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
    • B29C65/7461—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool for making welds and cuts of other than simple rectilinear form
    • 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
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81264—Mechanical properties, e.g. hardness
    • 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
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8227—Transmission mechanisms using springs
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/929—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools characterized by specific pressure, force, mechanical power or displacement values or ranges
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/94—Measuring or controlling the joining process by measuring or controlling the time
    • B29C66/949—Measuring or controlling the joining process by measuring or controlling the time characterised by specific time values or ranges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/007—Hardness
    • 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
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3035—Sun visors
    • 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
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3055—Cars
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1054—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing and simultaneously bonding [e.g., cut-seaming]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/108—Flash, trim or excess removal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/1313—Cutting element simultaneously bonds [e.g., cut seaming]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】 （産業上の利用分野） この発明は、一対の熱可塑性樹脂からなる表皮で被覆さ
れた自動車用サンバイザの製造方法に関するものであ
る。
（従来技術） 従来、一対の熱可塑性樹脂からなる表皮で被覆された自
動車用サンバイザの製造方法としては、一般に第５図に
示すように互いに対向する上型ａと下型ｂとを用いて溶
着と切断とを２工程に分けて行う方法が知られている
（例えば特開昭５５−５９０１６号公報参照）。上記上
型ａは上部電極体である押え型ｃとこの押え型ｃに外嵌
した切断型ｄとが互いに離れる方向にばね付勢されて構
成され、上記上型ａを下降させることにより押え型ｃと
下部電極体である下型ｂとで表皮の外周縁を上下から加
圧して高周波ウエルダーにより溶着し、さらに上型ａを
上記ばねに抗して下降させることにより上記切断型ｄと
下型ｂとで上記溶着部の周囲を切断するようにしてい
る。
このような従来の製造方法では、表皮は押え型ｃの外周
に沿って切断されるので、製造されたサンバイザには第
６図に示すように上記押え型ｃの押え部ｅの幅に相当す
る溶着部ｆがサンバイザの周囲に突出（例えば２mm程度
の幅に突出）して形成される。このため、サンバイザと
しての外観がよくないという欠点がある。
（発明の目的） この発明は、このような従来の欠点を解消するためにな
されたものであり、外観を向上させることができる自動
車用サンバイザの製造方法を提供するものである。
（発明の構成） 第１の要旨は、少なくとも一方の織布の裏面に熱可塑性
樹脂層が形成された一対の表皮の外周縁を上部電極体と
下部電極体とで互いに加圧し、かつ溶着させる自動車用
サンバイザの製造方法において、上部電極体には先端部
を尖らせた刃先が上記表皮の外周縁に沿って形成され、
この刃先の外側には微小幅の斜面が形成されるととも
に、内側には微小幅の斜面が形成され、これらの斜面と
これらに対向する下部電極体の平面との間で表皮を溶着
させその後高周波電流を遮断した後に、上記刃先をさら
に押圧することにより上記表皮を切断するものである。
第２の要旨は、少なくとも一方の織布の裏面に熱可塑性
樹脂層が形成された一対の表皮の外周縁を上部電極体と
下部電極体とで互いに加圧し、かつ溶着させる自動車用
サンバイザの製造方法において、上部電極体には先端部
を尖らせた刃先が上記表皮の外周縁に沿って下部電極体
よりも硬い材料によって形成され、この刃先の外側には
微小幅の斜面が形成されるとともに、内側には微小幅の
斜面が形成され、これらの斜面とこれらに対向する下部
電極体の平面との間で表皮を溶着させその後高周波電流
を遮断した後に、上記刃先をさらに押圧することにより
上記表皮を切断するものである。
上記構成によれば、上部電極体の刃先と下部電極体とに
よって一対の表皮の外周縁が加圧溶着され、しかもその
位置で切断されるのでサンバイザの周囲には従来のよう
に突出した溶着部が形成されることはない。また上記刃
先によって加圧溶着する際に、一対の表皮の接合部の内
側に熱可塑性樹脂素材が溶出して冷やされることによっ
て、従来のように面と面との溶着部が形成されなくても
一対の表皮を一体化することができる。
そして、上記のように表皮を溶着させた後に高周波電流
を遮断し、その後刃先をさらに押圧して表皮を切断する
ようにしているため、上記切断時にはすでに上部電極体
と下部電極体との間には高周波の印加は消滅しており、
両電極体が互いに当接しても当接部分が高周波によるス
パーク発生で損傷するということはない。従って、安心
して刃先を下部電極体に強い力で押圧することが可能で
あり、その結果織布が含まれた表皮であっても確実に切
断することが可能になる。
さらに、表皮の外周縁を補強する必要がある場合には、
その部分の上部電極体を対象とし、刃先の内側に形成さ
れる斜面の角度を他の部分よりも小さく設定するととも
に斜面の幅を他の部分よりも大きく設定することによっ
て、その部分の外周縁に所定の幅で外側に突出した溶着
部を形成させることが可能になり、その結果その部分の
強度を他の部分よりも大きくすることができる。
加えて、刃先の外側にも微小幅の斜面が形成されている
ため、上記刃先による加圧溶着操作時に尖った刃先を境
にして表皮の外側になる部分の表皮も軟化溶融し、結局
刃先の先端部を境にして両サイドに溶着部が形成され、
切断後の不用部分の取り除き操作が容易に行われる。
また上記第２の要旨においては、上部電極体の刃先を下
部電極体よりも硬い材料によって形成しているので、刃
先の先端が下部電極体側に食込むようにして一対の表皮
を挟み、かつ切断することができ、これによって一対の
表皮の溶着および切断を確実かつ均一に行うことができ
る。
（実施例） 第２図において、上部電極体１と下部電極体２とは互い
に対向するとともに、上部電極体１は下部電極体２に対
して上下動できるように配置されている。下部電極体２
の上面にはサンバイザの外周形状に沿って受け座２１が
突出して形成され、上部電極体１の下面には上記受け座
２１と対応して切断刃１１が突出して形成されている。
これによって一対の電極体１，２の対向する面にはサン
バイザを収容する凹部１２，２２がそれぞれ形成され
る。これら上下一対の電極体１，２によって第３図に示
すサンバイザ３を厚み方向に半割りにした一対の上下成
形型が構成されるようにしている。
上記切断刃１１の横断形状は、凹部１２を構成する鉛直
の内壁面１３と、外側の斜面１４とにより全体として下
方に尖った形状に形成されている。この切断刃１１の先
端部の微小部分には、第１図に示すように、受け座２１
の上端面に対して角度αの内側斜面（微小幅の斜面）１
６と、角度βの外側斜面１７とが交差するように形成さ
れ、この交差線によって刃先１５が形成されている。そ
してこの刃先１５は、第１図に示すように受け座２１の
内側上縁から距離Ｌａ（例えば０．５mm〜０．７mm程
度）だけわずかに外側の位置で受け座２１と当接するよ
うに形成されている。これら上部電極体１の切断刃１１
と、下部電極体２の受け座２１とによって、加圧溶着と
切断とが刃先１５と受け座２１との当接位置で行えるよ
うにしている。
切断刃１１と受け座２１とは同じ硬度の材料により形成
してもよいが、切断刃１１を受け座２１より硬い材料で
構成することが好ましい。また角度αとしては４５゜程
度、角度βとしては２０゜程度に設定するのが好まし
い。なお、この角度α、角度βおよび上記距離Ｌａなど
は、切断刃１１や受け座２１を構成する材料の硬度、お
よびサンバイザ３の表皮として使用する材料に応じて決
定すればよい。
上記構成の装置によりサンバイザを製造するには、例え
ば第３図に憶断面を示すように芯材３１をクッシヨン材
３２で挟み、このクッシヨン材３２の上下面を熱可塑性
樹脂からなる一対の表皮３３で覆い、これらを第２図に
示す下部電極体２の凹部２２に載置して上部電極体１を
下降させる。そして刃先１５と受け座２１との間で表皮
の外周縁を挟み、刃先１５によって表皮が切断されない
程度の押圧力（例えば９kg／cm2程度）を加えた状態で
高周波加熱により溶着する。所定の冷却時間の経過後に
上記刃先１５にさらに大きな押圧力（例えば２０ｔ程
度）を加えることにより、第１図に示す刃先１５の位置
で表皮３３を切断すればよい。なお、上記切断工程にお
ける押圧力は切断する表皮３３の材質、厚さおよびその
切断部の周長などによって決定すればよい。例えばポリ
塩化ビニール製で厚さ０．３〜０．４mmの表皮を用いる
場合には、その切断部の周長１mmについて１６kg程度の
押圧力を加えればよく、周長が９６０mmであれば１５ｔ
程度、周長１２００mmであれば１９ｔ程度、周長が１３
００mmであれば２１ｔ程度、周長が１４５０mmであれば
２３ｔ程度の押圧力にそれぞれ設定するのが望ましい。
これによって一対の表皮３３は、刃先１５の内側斜面１
６と、受け座２１の微小幅Ｌａの平面２３との間で挟み
付けられて溶着される。そして上記刃先１５の位置で切
断されることによって、一対の表皮３３は第３図に示す
ように突合せ状態の溶着部が形成される。このため、サ
ンバイザ３の外周部に形成される溶着部の突出幅Ｌｂ
は、例えば０．２mm〜０．５mm程度に低減させることが
できる。したがつてサンバイザ３を全体的に見ればその
外周部は丸みを帯びた形状に認識でき、外観を向上させ
ることができるとともに、触感も向上させることができ
る。
また一対の表皮３３の接合部は、第３図に示すように接
合部の内側に溶出した表皮３３の素材３３１により互い
に溶着されるので、従来のように所定幅を有する面と面
とが溶着された溶着部が形成されなくても一対の表皮３
３を結合して一体化することがができる。
なお受け座２１の刃先１５が当接する位置に、第７図に
示すように刃先１５よりもやや大きい内角を有するＶ字
形で微小な深さ（例えば０．１mm程度の深さ）の凹溝２
４を形成してもよい。この凹溝２４と刃先１５とで一対
の表皮３３を挟んで溶着することによって、溶着部の強
度をさらに大きくすることができる。
なお表皮３３としては、例えば熱可塑性樹脂により表面
を皮革様や布様に成形したシート状のものや、織布の裏
面にポリ塩化ビニールなどをラミネートしたものなど種
々のものが適用でき、少なくとも表皮３３の裏面が熱可
塑性樹脂で構成されていればよい。
また第４図に示すサンバイザ３において、例えば車屋内
への取付け部近傍の外周縁３５は一対の表皮３３の溶着
部に作用する引裂き力が大きくなりがちであるので、上
記溶着部の突出幅Ｌｂを、運転者が操作する側の外周縁
３４より大きくして補強するようにしてもよい。
第８図には、第１図に示す第１実施例における切断刃１
１の先端部の微小部分と、この微小部分に対向する受け
座２１との形状を変化させた装置を用いる場合の第２実
施例が示されている。この第２実施例における切断刃１
１ａには、その先端部の微小部分に、微小な幅Ｌｃ（例
えば０．１mm）の直線部１５１を有する刃先１５ａが形
成され、この直線部１５１は内側端縁で内側斜面１６、
外側端縁で外側斜面１７とそれぞれ交差している。また
受け座２１ａには切断刃１１ａの内側斜面１６と外側斜
面１７とで構成される角度よりもやや大きい内角を有す
る略Ｖ字形であって、底部に上記直線部１５１と接触す
る平坦部２４１を有する微小な深さ（例えば０．１mm程
度の深さ）の凹溝２４ａが形成されている。
上記切断刃１１ａは受け座２１ａよりも硬くなるよう
に、例えば切断刃１１ａはロックウエル硬さＨＲＣが５
８程度の合金工具鋼鋼材（ＳＫＳ、ＪＩＳ４４０４）、
受け座２１ａはロックウエル硬さＨＲＣが２２程度の炭
素工具鋼鋼材（ＳＫ３、ＪＩＳ４４０１）によってそれ
ぞれ形成されている。なお上記鋼材およびその鋼材の硬
さは刃先１５ａの形状、表皮３３の材質、厚さ、および
表皮３３の切断部の周長などに応じて決定すればよい。
上記構成の装置によりサンバイザを製造するには、上部
電極体１を下降させることにより刃先１５ａと受け座２
１ａの凹溝２４ａとの間に一対の表皮３３の外周縁を挟
み、この表皮３３が切断されない程度の押圧力（例えば
９kg／cm2程度）を加えた状態で高周波加熱により直線
部１５１と平坦部２４１とによって挟まれる微小幅部分
を溶着し、ついで高周波電流を遮断して上記刃先１５ａ
にさらに大きな押圧力（例えば２０ｔ程度）を加えて直
線部１５１と平坦部２４１とを接触させることにより一
対の表皮３３を切断し、この後に冷却すればよい。上記
２段階の押圧力の大きさは、切断する３３の材質、厚
さ、およびその切断部の周長などによって決定すればよ
い。
このサンバイザの製造工程においては、溶着工程によっ
て直線部１５１と平坦部２４１とによって挟まれる微小
幅部分の素材が溶融し、続いて切断工程で刃先１５ａと
凹溝２４ａとの距離がさらに縮まり、ついには第８図に
示すように直線部１５１と平坦部２４１とが接触するの
で、上記溶融素材が内側斜面１６と受け座２１ａの上面
とによってサンバイザの内側、すなわちクッシヨン側に
溶出し、この溶出した素材３３１（第３図参照）によっ
て一対の表皮３３の接合部の互いの端面および裏面が溶
着される。上記切断の際、内側斜面１６と凹溝２４ａの
内壁斜面２４２とで形成される鋭角な対向面によって上
記溶融素材を表皮３３の裏面側へ溶出させようとする圧
力が発生し、この圧力は第１図に示す内側斜面１６と平
面２３とによって構成される対向面だけのよりも大き
く、これによって一対の表皮３３の溶着部の強度を第１
図に示す第１実施例の場合よりも大きくすることができ
る。
また切断刃１１ａの方が受け座２１ａよりも硬く形成さ
れているので、切断に際しては刃先１５ａが受け座２１
ａに対して食込むようにして接触することになり、一対
の表皮３３を確実に切断することができるとともに、一
対の表皮３３の板厚などがばらついていても均一に切断
することができる。さらに上記切断刃１１ａと受け座２
１ａととを共に比較的硬い材料で形成した場合に比べ、
刃先１５ａの摩耗、損傷などの発生を低減させることが
でき、これにより装置の耐久性を向上させることができ
る。
（具体例） 第８図に示す切断刃１１ａと受け座２４ａとを次に示す
ように形成してサンバイザを製造した。すなわち直線部
１５１の幅Ｌｃが０．１mm、内側斜面１６の幅Ｌｄが
０．３mm、角度αが４５゜、角度βが３２゜、凹溝２４
ａの深さが０．１mm、および平坦部の幅が上記Ｌｃと同
じになるようにそれぞれ設定し、切断刃１１ａをロック
ウエル硬さＨＲＣが５８程度に設定されたＳＫＳ鋼材、
受け座２４ａをロックウエル硬さＨＲＣが２２程度に設
定されたＳＫ３鋼材によってそれぞれ形成した。
表皮３３としては、織布の裏面にポリ塩化ビニールをラ
ミネートした厚さが０．３mmの表皮と、ポリ塩化ビニー
ルによって布様に成形した厚さが０．４mmの表皮とを用
い、製造試験はこの２種類の表皮について実施した。な
お、表皮３３の溶着部もしくは切断部の周長は１３００
mmであり、またクッシヨン材３２としては厚さが８mmの
発泡ウレタンを用いた。
溶着工程は押圧力９kg／cm2により加圧した状態で４秒
間高周波加熱し、切断工程は押圧力２１ｔにより溶着工
程に続いて１．５秒間加圧し、この後２．５秒間冷却し
た。
この結果、第３図に示す溶着部の突出幅Ｌｂは０．２〜
０．５mmとなり、また溶着部の剥離強度は１０mm長さ当
たりで３．５〜４．０kg／cm2となり、第６図に示す従
来のサンバイザと比べて外周部に存在する突出部分ｆを
ほぼなくすことができ、しかも一対の表皮の接合部の強
度も十分なサンバイザを得ることができた。
なお上記具体例において、溶着工程における押圧力とし
ては（９±１．０）kg／cm2の範囲が望ましく、この範
囲より小さいと溶着部の強度が低下し、逆に大きいと表
皮３３の織布が焼けるおそれがある。また切断工程にお
ける押圧力としては切断長さ１mmについて１６kgより大
きい範囲で選択することができる。この範囲より小さい
と切断が十分に行えない。
また上記具体例においては、第９図に示すようにステー
４の挿入部分の外周縁３５を補強するために、溶着幅Ｌ
ｅが上記外周縁３５の両端部から徐々に変化して最大部
で２mm程度となる溶着部が上記外周縁に形成されるよう
にしている。上記溶着部を形成するために上記切断刃１
５ａと受け座２１ａとの上記外周縁３５に対応する部分
の形状を変化させている。
第１０図には上記溶着幅Ｌｅの最大幅に相当する部分の
切断刃１１ａと受け座２１ａとの断面が示されている。
この切断刃１１ａには直線部１５１（Ｌｃ＝０．１mm）
から連続する内側斜面１６ｂとして水平面に対する角度
αが０゜４０′、幅Ｌｄが２mmにそれぞれ形成され、こ
の内側斜面１６ｂと対応する受け座２１ａには凹溝２４
ａの平坦部２４１から連続する内壁斜面２４２ｂとして
水平面に対する角度γが０゜２０′で受け座２１ａの内
側端まで連続するように形成されている。切断刃１５ａ
と受け座２１ａの凹溝２４ａとは、第１０図に示す断面
を最大変化断面として徐々に第８図に示す断面に変化す
るように形成されている。
これによってサンバイザ３の組立てにおけるステー４の
圧入作業に際して比較的大きな引裂き力が表皮３３の接
合部に作用しても、その表皮３３の破れを防止すること
ができる。
（発明の効果） この発明の自動車サンバイザ製造方法の第１および第２
の要旨によれば、上部電極体に形成した刃先によって加
圧溶着と切断とを同じ位置で行うようにするものである
ので、サンバイザの周囲には従来のように突出した溶着
部が形成されることはなく、外観および触感のよいサン
バイザを製造することができる。
しかも上記刃先の内側に形成された微小幅の斜面と、こ
れに対向する下部電極体の平面とによって表皮の接合部
の内側に熱可塑性樹脂素材が溶出して接合部の裏面を互
いに溶着することができるので、従来のように面と面と
の溶着部が形成されなくても、一対の表皮を確実に溶着
して一体化されたサンバイザを製造することができる。
また第２の要旨においては、上部電極体の刃先を下部電
極体よりも硬い材料によって形成しているので、刃先の
先端が下部電極体に食込むようにして一対の表皮を挟
み、かつ切断することができ、これによって一対の表皮
の一方が織布に合成樹脂層が形成されたものであり他方
が織布そのものであるような場合であっても、それらの
溶着および切断を確実かつ均一に行うことができる。
【図面の簡単な説明】
第１図はこの発明の実施例に使用する製造装置である第
２図のＩ部拡大図、第２図は製造装置の簡略断面図、第
３図は第２図の製造装置により製造されたサンバイザの
部分拡大横断面図、第４図は一般的なサンバイザの正面
図、第５図は従来の製造方法に使用する装置の簡略断面
図、第６図は従来の製造方法により製造されたサンバイ
ザの横断面図、第７図は製造方法に使用する装置の他の
態様を拡大して示す第１図相当図、第８図はこの発明の
第２の実施例に使用する装置を拡大して示す第１図相当
図、第９図はステー取付け部の溶着部を示す説明図、第
１０図は第９図の溶着部を形成するための装置を拡大し
て示す第１図相当図である。 １……上部電極体、２……下部電極体、３……サンバイ
ザ、１５，１５ａ……刃先、１６……内側斜面（微小幅
の斜面）、２３……下部電極体の平面、３３……表皮。

Claims (3)

    【特許請求の範囲】
  1. 【請求項１】少なくとも一方の織布の裏面に熱可塑性樹
    脂層が形成された一対の表皮の外周縁を上部電極体と下
    部電極体とで互いに加圧し、かつ溶着させる自動車用サ
    ンバイザの製造方法において、上部電極体には先端部を
    尖らせた刃先が上記表皮の外周縁に沿って形成され、こ
    の刃先の外側には微小幅の斜面が形成されるとともに、
    内側には微小幅の斜面が形成され、これらの斜面とこれ
    らに対向する下部電極体の平面との間で表皮を溶着させ
    その後高周波電流を遮断した後に、上記刃先をさらに押
    圧することにより上記表皮を切断することを特徴とする
    自動車用サンバイザの製造方法。
  2. 【請求項２】少なくとも一方の織布の裏面に熱可塑性樹
    脂層が形成された一対の表皮の外周縁を上部電極体と下
    部電極体とで互いに加圧し、かつ溶着させる自動車用サ
    ンバイザの製造方法において、上部電極体には先端部を
    尖らせた刃先が上記表皮の外周縁に沿って下部電極体よ
    りも硬い材料によって形成され、この刃先の外側には微
    小幅の斜面が形成されるとともに、内側には微小幅の斜
    面が形成され、これらの斜面とこれらに対向する下部電
    極体の平面との間で表皮を溶着させその後高周波電流を
    遮断した後に、上記刃先をさらに押圧することにより上
    記表皮を切断することを特徴とする自動車用サンバイザ
    の製造方法。
  3. 【請求項３】（９±１．０）kg／cm2の範囲の押圧力の
    作用下で溶着した後に、切断長さ１mmについて１６kgよ
    り大きい押圧力を加えて切断することを特徴とする特許
    請求の範囲第１項または第２項記載の自動車用サンバイ
    ザの製造方法。
JP27402487A 1987-05-15 1987-10-28 自動車用サンバイザの製造方法 Expired - Lifetime JPH0615210B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP27402487A JPH0615210B2 (ja) 1987-05-15 1987-10-28 自動車用サンバイザの製造方法
KR1019880005379A KR910003585B1 (ko) 1987-05-15 1988-05-10 자동차용 선바이저의 제조방법
DE19883883839 DE3883839T2 (de) 1987-05-15 1988-05-11 Verfahren zur Herstellung einer Autosonnenblende.
EP19880107607 EP0291854B1 (en) 1987-05-15 1988-05-11 Method for manufacturing an automobile sunvisor
US07/469,672 US4960479A (en) 1987-05-15 1990-01-22 Method for manufacturing an automobile sunvisor

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP62-119847 1987-05-15
JP11984787 1987-05-15
JP27402487A JPH0615210B2 (ja) 1987-05-15 1987-10-28 自動車用サンバイザの製造方法

Publications (2)

Publication Number Publication Date
JPS6451922A JPS6451922A (en) 1989-02-28
JPH0615210B2 true JPH0615210B2 (ja) 1994-03-02

Family

ID=26457511

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Application Number Title Priority Date Filing Date
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Country Status (5)

Country Link
US (1) US4960479A (ja)
EP (1) EP0291854B1 (ja)
JP (1) JPH0615210B2 (ja)
KR (1) KR910003585B1 (ja)
DE (1) DE3883839T2 (ja)

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FR2658446B1 (fr) * 1990-02-16 1992-05-15 Roth Sa Freres Procede de fabrication d'un appui-tete avec insert articule et dispositif pour la mise en óoeuvre de ce procede.
IT1248593B (it) * 1991-06-28 1995-01-19 Sviluppo Settori Impiego Srl Procedimento per la preparazione di corpi formati termoisolanti e/o strutturali a doppia parete e prodotti cosi` ottenuti.
JPH05169547A (ja) * 1991-12-25 1993-07-09 Sanwa Kogyo Kk 自動車用トップシーリングの成形方法
IT1256872B (it) * 1992-02-14 1995-12-27 Saturno Spa Procedimento per la realizzazione di una aletta parasole per veicolo, ed aletta ottenuta mediante il procedimento stesso.
DE4206262A1 (de) * 1992-02-28 1993-09-02 Kiefel Hochfrequenz Paul Verfahren zum verschweissen von halogenfreien thermoplastfolien
DE4424663A1 (de) * 1994-07-14 1996-01-18 Benecke Kaliko Ag Sonnenblende für Fahrzeuge
DE4430011A1 (de) * 1994-08-24 1996-02-29 Happich Gmbh Gebr Sonnenblende für Fahrzeuge und Verfahren zum Herstellen einer Sonnenblendenumhüllung
IT1267175B1 (it) * 1994-11-29 1997-01-28 Franco Cesano Attrezzatura per lo stampaggio di componenti con un'anima di materiale termoplastico.
FR2731381B1 (fr) * 1995-03-06 1997-05-30 Rockwell Bcs France Ensemble d'electrodes pour souder des revetements en matiere plastique
JP2007008233A (ja) * 2005-06-28 2007-01-18 Kyowa Sangyo Kk 車両用サンバイザ

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US2510383A (en) * 1945-11-15 1950-06-06 Pye Ltd Method of cutting or trimming thermoplastic materials
US2686556A (en) * 1950-05-31 1954-08-17 Gerber Eugene Machine for sealing thermoplastic materials
US3025206A (en) * 1956-09-12 1962-03-13 William M Scholl Process of making foot cushioning devices
US3099596A (en) * 1960-04-26 1963-07-30 Stafford Tool And Die Company Machinery for cutting, embossing or marking materials
CH507786A (de) * 1969-05-06 1971-05-31 Sig Schweiz Industrieges Schneidvorrichtung mit rotierendem Zick-Zack-Messer
US3901759A (en) * 1969-09-08 1975-08-26 British Visqueen Ltd Plastics web slitting and sealing device
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Also Published As

Publication number Publication date
JPS6451922A (en) 1989-02-28
US4960479A (en) 1990-10-02
DE3883839T2 (de) 1994-02-24
EP0291854A3 (en) 1990-09-19
EP0291854A2 (en) 1988-11-23
EP0291854B1 (en) 1993-09-08
DE3883839D1 (de) 1993-10-14
KR880013719A (ko) 1988-12-21
KR910003585B1 (ko) 1991-06-07

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