WO2017056539A1 - ブラシ及びブラシの製造方法 - Google Patents

ブラシ及びブラシの製造方法 Download PDF

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Publication number
WO2017056539A1
WO2017056539A1 PCT/JP2016/062313 JP2016062313W WO2017056539A1 WO 2017056539 A1 WO2017056539 A1 WO 2017056539A1 JP 2016062313 W JP2016062313 W JP 2016062313W WO 2017056539 A1 WO2017056539 A1 WO 2017056539A1
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WO
WIPO (PCT)
Prior art keywords
hair bundle
head
hair
head portion
brush
Prior art date
Application number
PCT/JP2016/062313
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
中村　仁
誠一 瀧川
Original Assignee
三菱鉛筆株式会社
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Filing date
Publication date
Application filed by 三菱鉛筆株式会社 filed Critical 三菱鉛筆株式会社
Publication of WO2017056539A1 publication Critical patent/WO2017056539A1/ja

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    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/567—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined
    • B29C65/568—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined using a swaging operation, i.e. totally deforming the edge or the rim of a first part to be joined to clamp a second part to be joined
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/06—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by welding together bristles made of metal wires or plastic materials
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined
    • B29C66/30321—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of protrusions belonging to at least one 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/543—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining more than two hollow-preforms to form said hollow 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
    • B29C66/69—General aspects of joining filaments 
    • 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
    • B29C66/81421—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 convex or concave
    • B29C66/81423—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 convex or concave being concave
    • 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
    • B29C66/81431—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 cavity, e.g. a groove
    • 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
    • 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
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • B29C66/8432—Machines for making separate joints at the same time mounted in parallel or in series
    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/60—Riveting or staking
    • B29C65/606—Riveting or staking the rivets being integral with one of the parts to be joined, i.e. staking
    • 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
    • B29C65/7841—Holding or clamping means for handling purposes
    • 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
    • B29L2031/42—Brushes
    • B29L2031/425—Toothbrush

Definitions

  • the present invention relates to a brush and a brush manufacturing method, for example, a flat wire type brush that does not use a flat wire and a brush manufacturing method.
  • the brush there are various brushes such as a hair brush, a body brush, a makeup brush, a shoe brush, and a clothes brush.
  • a hair brush As the brush, there are various brushes such as a hair brush, a body brush, a makeup brush, a shoe brush, and a clothes brush.
  • a body brush As the brush, there are various brushes such as a hair brush, a body brush, a makeup brush, a shoe brush, and a clothes brush.
  • a hair brush As the brush, there are various brushes such as a hair brush, a body brush, a makeup brush, a shoe brush, and a clothes brush.
  • the toothbrush shown by patent document 1 shown in FIG. 13 As a toothbrush, the toothbrush shown by patent document 1 shown in FIG. 13 is proposed. Below, the toothbrush shown by patent document 1 is demonstrated.
  • the toothbrush 11 shown in FIG. 13 folds the bristle bundle 12 into two, inserts the bent portion into a flock hole 13 that is recessed in the surface of the head portion 15 of the toothbrush, and places a flat wire inside the bent portion of the bristle bundle 12.
  • (Metal wire having a rectangular cross section) 14 and both ends of the flat wire 14 are fixed to the surface of the head portion 15 of the toothbrush.
  • the hair bundle 12 is fixed to the head portion 15 by the flat wire 14.
  • the head portion 15 needs to be thick enough to withstand the press-fitting of the flat wire 14, and there is a problem that the head portion 15 becomes large.
  • the head portion 15 is formed of resin and the flat wire 14 is formed of metal, there is a problem that it is difficult to separate the head portion 15 and the flat wire 14 and separate and discard them.
  • the flat wire type toothbrush 20 has a flock hole 22 formed in the head portion 21 and a recess 23 formed on the back surface of the head portion 21, and the flock hole 22 opens into the recess 23.
  • the hair bundle 24 is fixed to the head portion 21 by inserting the hair bundle 24 into the flocking hole 22 and filling the recess 23 with resin 25.
  • the manufacturing method of this flat wire type toothbrush 20 is demonstrated based on FIG. First, the toothbrush main body (head part 21) in which the flock hole 22 and the recessed part 23 are formed in the head part 21 is molded. Then, as shown in FIG. 15A, the head portion 21 is installed on the hair bundle holding jig 30.
  • the hair bundle holding jig 30 includes an installation part 31 of the head part 21 and a hair bundle shaping hole 32 connected to the flocking hole 22 of the head part 21 installed on the installation part 31.
  • the hair bundle is inserted into the hair bundle shaping hole 32 of the hair bundle holding jig 30 from the hair hole 22 of the head part 21 installed on the hair bundle holding jig 30 by a hair bundle planting device (not shown). 24 is planted, and the tip of the hair bundle 24 is pressed against the bottom surface of the hair bundle shaping hole 32 for shaping.
  • the end face of the hair bundle 24 coming out in the concave portion 23 of the head portion 21 is melted by the hair bundle end face melting device 40 to form a lump portion 24a.
  • the toothbrush having the head portion 21 and the bristle bundle holding jig 30 are transported to the molding device 50 by a transport device (not shown) and positioned.
  • a back filler (resin molding material) 60 introduced from the injection port 52 (gate) of the molding die 51 of the molding apparatus 50 is injected into the recess 23.
  • the hair bundle 24 is fixed to the head portion 21.
  • the filler 60 is solidified, the molding die 51 is opened, the toothbrush 20 and the hair bundle holding jig 30 are taken out, and the toothbrush 20 is removed from the hair bundle holding jig 30 as shown in FIG.
  • the toothbrush 20 is completed.
  • the above-described flat wire type toothbrush 20 inserts the hair bundle 24 into the flock hole 22 of the head portion 21 formed in advance, and fills the inside of the recess 23 with the resin 25, whereby the hair bundle 24
  • the toothbrush body including the head portion and handle portion A flat wire type toothbrush that performs fixing simultaneously is also known.
  • a non-flat wire type toothbrush that simultaneously forms the toothbrush body and fixes the head portion of the hair bundle will be described with reference to FIG. Note that the same or corresponding members as those shown in FIGS. 14 and 15 are denoted by the same reference numerals, and detailed description thereof is omitted.
  • the hair bundle holding jig 30 includes a toothbrush body part forming part 33 formed of a recess for forming the toothbrush body part, and a hair bundle shaping hole opened in the toothbrush body part forming part 33. 32.
  • the hair bundle 24 is implanted in the hair bundle shaping hole 32 of the hair bundle holding jig 30 by a hair bundle planting device (not shown), and the tip of the hair bundle 24 is inserted into the hair bundle shaping hole 32. Press against the bottom of the hole for shaping.
  • the end surface of the bristle bundle 24 which has come out in the toothbrush main-body part formation part 33 is fuse
  • tool 30 is conveyed to the shaping
  • the resin molding material 60 introduced from the injection port 52 (gate) of the molding die 51 of the molding apparatus 50 is injected into the head portion forming portion 33, and a toothbrush is obtained.
  • the body part (head part and handle part) 26 is formed and the head part 21 of the hair bundle 24 is fixed.
  • the molding die 51 is opened, the toothbrush 20 and the hair bundle holding jig 30 are taken out, and the toothbrush 20 is removed from the hair bundle holding jig 30 as shown in FIG. The toothbrush 20 is completed.
  • a back surface filling material (resin molding material) is formed in a predetermined recess in the head portion by a molding device. Filled with injection pressure. This injection pressure is carried out at a high injection pressure in order to spread the back filler throughout one recess. Therefore, in this conventional flat wire type toothbrush, there is a possibility that the resin filled in the recesses may bleed out to the surface of the head through the hairs of the hair bundle, and the lower end portion of the hair constituting the hair bundle There is a technical problem that the hairs are bonded together by the resin, and the lower ends of the hairs constituting the hair bundle are adhered to the flock holes, and the predetermined flexibility of the hair bundle is lost.
  • the toothbrush body portion head portion and handle portion
  • the head portion of the hair bundle is fixed at the same time.
  • the shape of the flocked hole 22 itself becomes a shape that follows the hair bundle 24, and the gap between the flocked hole 22 and the hair bundle 24 is lost.
  • the lower ends 24A of the hairs constituting the bristle bundle 24 are bonded to each other by a resin formed by the toothbrush main body, and the lower ends 24A of the bristle constituting the bristle bundle 24 are bonded to the flock holes 22 by the resin.
  • the predetermined flexibility of the bundle was lost.
  • any non-flat wire type toothbrush has the lower ends of the hairs constituting the hair bundle bonded to each other by the resin, and the lower ends of the hairs constituting the hair bundle are bonded to the flock holes, The gap between the flock hole and the hair bundle may be lost.
  • the conventional flat wire type toothbrush has a technical problem that the predetermined flexibility of the bristles is lost, the drainage between the hairs is poor, and the usability of the toothbrush is inferior. there were.
  • the present inventor has been made in order to solve the above technical problem, and provides a brush with good usability and a method for manufacturing a brush that can easily drain water and can maintain a predetermined flexibility of a hair bundle. With the goal.
  • the brush according to the present invention made to achieve the above object is a brush in which a hair bundle is implanted in a synthetic resin head portion without using a flat wire, and a plurality of penetrating the front and back surfaces of the head portion.
  • a plurality of hair bundles made of a plurality of synthetic resin fibers and inserted into each of the plurality of planting holes, and a head portion rear surface of each hair bundle inserted into the plurality of planting holes Provided in each of the plurality of planting holes, the lump portion in which the bristles are melted and solidified, the locking portions where the lump portions of the bristles are locked,
  • a plurality of hair bundle fixing portions in a state in which a resin is melted and solidified, covering a back side of the lump portion of the hair bundle locked to the locking portion and closing the planting hole.
  • One hair bundle is fixed to the head part by one hair bundle fixing part.
  • the lump portion of the hair bundle is fixed by the hair bundle fixing portion provided in each of the plurality of planting holes. That is, since one hair bundle is fixed to the head portion by one hair bundle fixing portion, even if the molding resin is temporarily filled into the flock hole, it is filled with a high resin injection pressure as in the past. do not have to. As a result, the filled resin can be prevented from seeping out to the surface of the head through the hairs of the hair bundle, and the adhesion between the lower ends of the hairs and the adhesion between the lower ends of the hairs and the flock holes are suppressed. In addition, it is possible to suppress the shape of the flocking hole itself from following the hair bundle. Therefore, the brush according to the present invention can be a brush with good usability that allows good drainage and maintains the predetermined flexibility of the hair bundle.
  • the hair bundle fixing portion is formed in each of the plurality of planting holes, the thick edge portion of the recess does not exist compared to the case where one recess is formed in the conventional head portion. Therefore, the flock holes can be formed in the vicinity of the outer edge portion of the head portion, and more hair bundles can be formed in the entire head portion, so that a brush with a good feeling of use can be obtained.
  • the hair bundle fixing portion provided in each of the plurality of planting holes may be a hair bundle fixing portion in a state in which a part of the head portion or a closing member separate from the head portion is melted and solidified. desirable. Since this hair bundle fixing part is a part of the head part or a member other than the head part that is melted and solidified, the resin passes between the hairs of the hair bundle as in the case of filling the resin. Adhesion between the lower ends of the hairs and adhesion between the lower ends of the hairs and the flocked holes can be prevented without oozing to the surface of the head, and the shape of the flocked holes themselves is shaped like a hair bundle. Can be prevented.
  • a toothbrush with good usability that drains well and can maintain the predetermined flexibility of the hair bundle.
  • the shape of the flocked hole can be maintained in a desired shape, a gap can be formed between the flocked hole and the hair bundle, and the ratio of the area of the flocked hole to the total area of the hair bundle (occupation of the hair bundle) Rate) can be easily achieved at a desired ratio, and a brush having a desired drainage and a desired bundling flexibility can be obtained.
  • the surface of the hair bundle fixing portion provided in each of the plurality of planting holes protrudes from the back surface of the head portion. That is, the fixed part is formed as a convex part on the back surface of the head part. As described above, the length of the hair bundle held by the head portion (flock hole) is increased while the thickness of the head portion is reduced by being configured so that the surface of the fixed portion protrudes from the back surface of the head portion. Can do.
  • the lump portion of the hair bundle is disposed at a position of 50% or more of the head portion thickness with respect to the surface of the head portion.
  • the head portion is disposed at a position less than 50% of the thickness, the length of the hair bundle held by the head portion (planting hole) is short, and the movable fulcrum of the hair (on the head portion surface side) Since the contact point between the edge of the planting hole and the hair is in the vicinity of the lump-like portion, it is not preferable because the hair is easily removed.
  • the movable fulcrum of the hair is in the vicinity of the lump portion, the amplitude of the hair is increased, which causes a problem that the hair tip is easily opened, which is not preferable.
  • the opening edge of the planting hole on the surface side of the head portion is curved or chamfered.
  • the opening edge of the planting hole on the surface side of the head portion is a vertical corner, the hair tends to be bent by the corner, which is not preferable.
  • the opening edge of the planting hole is curved or chamfered, it is possible to suppress the bending of the hair and to function as a guide when inserting the hair bundle during manufacture.
  • the brush manufacturing method according to the present invention made to achieve the above object is the method for manufacturing a brush, wherein a head portion including a plurality of through-planting holes and the locking portion is formed by resin molding.
  • a head portion including a plurality of through-planting holes and the locking portion is formed by resin molding.
  • the method for manufacturing a brush according to the present invention covers the back side of the lump portion formed by molten resin formed in each of a plurality of planting holes, and the molten resin is solidified to solidify the hair.
  • a step of forming a plurality of hair bundle fixing portions for fixing the bundle to the head portion is provided.
  • one hair bundle is fixed to the head portion by one hair bundle fixing portion, even if the molding resin is filled into the flocked hole, high resin injection as in the past is performed. There is no need to fill with pressure.
  • the hair bundle fixing portion is formed in each of the plurality of planting holes, the thick edge portion of the recess does not exist compared to the case where one recess is formed in the conventional head portion. For this reason, the flock holes can be formed in the vicinity of the outer edge portion of the head portion, and more hair bundles can be formed in the entire head portion, so that a brush with a good feeling of use can be obtained.
  • the hair bundle fixing portion is formed by injecting and filling molten resin into each of the plurality of planting holes, and solidifying the resin, thereby fixing the hair bundle fixing portion. It is desirable that the part is formed.
  • the hair bundle fixing portions are individually provided in each of the plurality of planting holes, it is not necessary to fill with a high resin injection pressure as in a conventional brush, and it is sufficient to fill with a low resin injection pressure. Therefore, it is possible to prevent the filled resin from passing through the hairs of the hair bundle and exuding to the head surface.
  • a step of forming a wall portion around each of the plurality of planting holes on the back side of the head portion so as to surround the planting hole and fixing the hair bundle to the head portion is melted and solidified, and a hair bundle fixing portion that covers the back side of the massive portion is formed in each of the plurality of planting holes on the back side of the head portion.
  • the wall portion formed so as to surround the planting hole on the back side of the head portion is formed, and by melting and solidifying the wall portion, the back side of the massive portion can be easily covered.
  • the hair bundle can be securely fixed to the head portion.
  • the shape of the flocked hole can be maintained in a desired shape, a gap can be formed between the flocked hole and the hair bundle, and the ratio of the area of the flocked hole to the total area of the hair bundle (occupation of the hair bundle) Rate) can be easily achieved at a desired ratio, and a brush having a desired drainage and a desired bundling flexibility can be obtained.
  • the plurality of planting holes on the back side of the head unit are separated from the head unit so as to surround the planting holes on the back side of the head unit. It is desirable to dispose the closing member, melt and solidify the closing member, and form a hair bundle fixing portion that covers the back side of the massive portion in each of the plurality of planting holes on the back side of the head portion. Even in this case, the back side of the lump part can be easily covered, the hair bundle can be reliably fixed to the head part, and the shape of the flock hole can be maintained in a desired shape. It can be set as a brush with a good feeling of use which has the desired drainage and the flexibility of a desired hair bundle.
  • a fixing part that melts and solidifies a part of the head part or the head part in which the planting hole is arranged and melts and solidifies, covers the back side of the lump part, and fixes the hair bundle to the head part.
  • a molding die since a molding die is not required, it can be manufactured at low cost.
  • FIG. 1 is a perspective view showing one embodiment of a toothbrush according to the present invention
  • (a) is a perspective view seen from the back side of the toothbrush
  • (b) is a perspective view seen from the surface side of the toothbrush.
  • FIG. 2 is a cross-sectional view taken along the line II in FIG.
  • FIG. 3 is an enlarged view of the surface side of the planting hole shown in FIG.
  • FIG. 4 is a side view showing the shape of synthetic resin fibers (hairs) used in the hair bundle.
  • FIG. 5 is a process diagram showing a method of manufacturing a toothbrush according to the present invention.
  • FIG. 6 is a process diagram illustrating a method for manufacturing a toothbrush following FIG. 5.
  • FIG. 7 is a process diagram showing in detail the process of FIG. FIG.
  • FIG. 8 is a process diagram showing in detail the process of FIG.
  • FIG. 9 is a diagram showing a first modification and is a process diagram showing the process of FIG. 6B in detail.
  • FIG. 10 is a diagram showing a second modification, and is a process diagram showing the process of FIG. 6B in detail.
  • FIG. 11 is a diagram showing a third modification, and is a process diagram showing the process of FIG. 6B in detail.
  • FIGS. 12A and 12B are diagrams showing a case where the present invention is applied to a hair washing brush, in which FIG. 12A is a side view and FIG. 12B is a perspective view.
  • FIG. 13 is a cross-sectional view showing the structure of one conventional toothbrush.
  • FIG. 14 is a cross-sectional view showing the structure of another conventional toothbrush.
  • FIG. 15 is a process diagram showing another conventional method of manufacturing a toothbrush.
  • FIG. 16 is a process diagram showing another method for manufacturing another conventional toothbrush.
  • FIG. 17 is an enlarged view
  • FIG. 1 is a perspective view showing an embodiment of a toothbrush according to the present invention
  • (a) is a perspective view seen from the back side of the toothbrush
  • (b) is a perspective view seen from the surface side of the toothbrush. is there.
  • FIG. 2 is a cross-sectional view taken along the line II of FIG.
  • FIG. 3 is an enlarged view of the planting hole.
  • reference numeral 1 indicates a toothbrush
  • reference numeral 2 indicates a handle of the toothbrush 1
  • the toothbrush 3 is formed by implanting bristles 5 ⁇ / b> A composed of a plurality of synthetic resin fibers 5 at a plurality of locations of the head portion 4.
  • a lump portion 5B is formed at one end of the hair bundle 5A on the back side of the head portion 2.
  • the lump 5B is formed in a state where the hair bundle 5A is melted and solidified.
  • the head portion 4 is formed with a plurality of planting holes 6 through which the hair bundle 5A is inserted and held.
  • a large-diameter portion 6 b having a larger diameter than the other portion (small-diameter portion) of the planting hole 6 is formed at the upper end portion of the planting hole 6.
  • the large-diameter portion 6 b constitutes a part of the planting hole 6 and communicates with the planting hole 6.
  • the large-diameter portion 6b forms a locking portion 6a which is a so-called step portion at the boundary between the large-diameter portion 6b (bottom surface portion) and the planting hole (small-diameter portion) 6.
  • locking part 6a is comprised so that the said block-shaped part 5B may be latched.
  • the large-diameter portion 6b only needs to have a diameter that can form the locking portion 6a. To increase the diameter more than necessary, the number of planting holes 6 formed in the head portion 2 is reduced. This means less and is not preferable.
  • the planting hole 6 is formed so as to penetrate the front surface 4 a side and the back surface 4 b side of the head portion 4, and the opening on the back side of the planting hole 6 (large diameter portion 6 b) is formed by the hair bundle fixing unit 7.
  • the hair bundle 5A is fixed to the head part 4 by covering.
  • the hair bundle fixing part 7 is in a state where a part of the head part 4 is melted and solidified.
  • the hair bundle fixing portion 7 is formed as a convex portion protruding from the back surface 4 b of the head portion 4.
  • the configuration in which the surface of the hair bundle fixing portion 7 projects from the back surface of the head portion 4 is that the length of the hair bundle 5A held by the planting hole 6 while the thickness of the head portion 4 is reduced. This is to lengthen the length.
  • the massive portion 5B is disposed at a position (dimension t2) of 50% or more of the head portion thickness t1 from the surface 4a of the head portion 4.
  • the thickness of the head portion means the maximum thickness of the head portion.
  • the hair bundle fixing portion 7 When the hair bundle fixing portion 7 is formed as a convex portion protruding from the back surface 4b of the head portion 4, the hair from the surface of the head portion 4 is The dimension to the convex part surface of the bundle fixing
  • the head portion When the head portion is disposed at a position less than 50% of the thickness, the length of the hair bundle held by the head portion 4 (planting hole 6) is short, and the hair movable fulcrum P (head portion) Since the contact point between the edge of the planting hole on the surface side and the hair is in the vicinity of the lump 5B, it is not preferable because the hair is easily removed.
  • the movable fulcrum P of the hair since the movable fulcrum P of the hair is in the vicinity of the lump portion 5B, the amplitude (vibration) of the hair increases, and the hair tip easily opens, which is not preferable.
  • the opening edge 6c of the implantation hole 6 on the surface side of the head portion 4 is curved or chamfered.
  • the opening edge 6c of the planting hole 6 on the surface side of the head portion 4 is a vertical corner, the hair 5 is easily bent by the corner, which is not preferable.
  • the opening edge 6c of the planting hole 6 is curved or chamfered, the bending of the bristles 5 is suppressed and also functions as a guide when inserting the bristles 5A during manufacturing. be able to.
  • the hair bundle fixing portion 7 has an outer shape formed so as to surround the planting hole 6 (large diameter portion 6b) on the back side of the head portion 4. It is formed by melting and solidifying a wall portion 4c having a cylindrical shape or a truncated cone shape (in which a planting hole 6 is formed in the central portion).
  • the hair bundle fixing portion 7 can be easily formed by pressing a heating and melting device such as a heater from above.
  • the wall portion 4c does not need to be formed so as to surround the entire circumference of the planting hole 6, and may surround a part of the planting hole 6. That is, the wall portion 4c only needs to be capable of melting and closing the opening 6b1 of the planting hole 6 (large diameter portion 6b) and fixing the massive portion 5B.
  • the head portion 4 is made of a resin such as polypropylene resin, polyacetal resin, polyoxymethylene resin, etc., and is integrally formed with the handle 2 of the toothbrush 1.
  • the head portion 4 is formed to have a width of 6 to 15 mm, a length of 15 to 35 mm, and a thickness of 2 to 7 mm, for example.
  • the synthetic resin fiber 5 implanted in the head part 4 is formed to have a length of 9 to 14 mm from the surface of the head part 4, for example.
  • the synthetic resin fiber 5 constituting the toothbrush 3 is made of polyamide resin such as 6,6-nylon, 6-nylon, 12-nylon, 6,10-nylon, 6,12-nylon, polyethylene, polypropylene, etc.
  • Polyolefin resins such as polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, and other polyester resins are used.
  • the synthetic resin fiber 5 constituting the toothbrush portion 3 is formed such that the diameter gradually decreases toward the tip, and the tapered surface is tapered at the tip.
  • the taper fiber 5a in which 5a1 was formed and the columnar fiber (non-taper fiber) 5b are included as shown in the enlarged schematic view of FIG. 4B.
  • the taper surface 5a1 length X of the taper fiber 5a is formed in the range of 1 to 5 mm from the tip of the synthetic resin fiber.
  • the taper surface 5a1 length X of the tapered fiber 5a is formed in the range of 1 to 5 mm from the tip of the synthetic resin fiber in consideration of the sweeping effect of the periodontal pocket and the like and the cleaning effect of the tooth surface. Is. As a result, a toothbrush corresponding to a patient suffering from moderate periodontitis can be obtained. That is, when the taper surface 5a1 length X is less than 1 mm, the taper fiber 5a does not penetrate to the deep part of the periodontal pocket, and the back of the pocket becomes insufficiently cleaned.
  • the taper surface 5a1 length X exceeds 5 mm, the hair tip (taper fiber) becomes too thin, it is difficult to sweep out dirt in the periodontal pocket, and the waist (repulsive force against bending) is weak. Since the effect of polishing is also reduced, it is not preferable.
  • a fiber having a diameter of about 0.10 mm to 0.25 mm has an appropriate elasticity and also has an effect of suppressing bending and bending, and is suitably used as a toothbrush of a toothbrush. be able to.
  • the diameter of both the tapered fiber 5a and the non-tapered fiber 5b is preferably 0.15 mm to 0.25 mm.
  • the diameter of the said taper fiber 5a is a diameter of a cylindrical part (part in which the taper surface 5a1 is not formed).
  • the synthetic resin fiber may have an elliptical shape, a star shape, an eyebrow shape, a cross shape, or a polygonal shape in cross section.
  • the number of fibers in one bundle in which the synthetic resin fibers 5 are assembled can be set as appropriate. Usually, 20 to 50 fibers that protrude from one flock hole 6 can be preferably used. it can. Further, the number of fiber bundles 5A (planting holes 6) to be implanted at the tip of the handle 2 of the toothbrush 1 can be set as appropriate, but those normally implanted at 14 to 40 locations are preferred. Can be used.
  • a lump portion 5B formed at one end of the bristle bundle 5A inserted through the planting hole 6 is melted with a part of the head portion 4 without using a flat wire. It is fixed by the hair bundle fixing part 7 in a solidified state. Therefore, unlike the conventional toothbrush, resin is not filled in one concave portion, so that there is no interface between the fixing portion and the head portion for fixing the hair bundle, and the adverse effect that the fixing portion falls off can be prevented. .
  • the toothbrush is formed simultaneously with the formation of the toothbrush body (head portion and handle portion) and the bristles are fixed to the head portion, the lower ends of the hairs are not bonded to each other, Further, the lower end portion of the bristles is not bonded to the toothbrush body portion (head portion). Further, the flocked hole of the toothbrush does not have a shape following the hair bundle as in the conventional toothbrush, and a gap is formed between the lower end portion of the bristles and the toothbrush body portion (head portion). As a result, it is possible to obtain a toothbrush with good usability that drains well and can maintain the predetermined flexibility of the hair bundle.
  • the shape of the flocked hole can be maintained in a desired shape, a gap can be formed between the flocked hole and the hair bundle, and the ratio of the area of the flocked hole to the total area of the hair bundle (of the hair bundle) Occupancy ratio) can be easily achieved at a desired ratio, and a toothbrush having desired drainage and desired bristle bundle flexibility can be obtained.
  • Fig.5 (a) the some penetration hole 6 penetrated and the latching
  • the toothbrush 1 having the head portion 4 is formed by resin molding.
  • a bristle bundle 5 ⁇ / b> A composed of a plurality of synthetic resin fibers 5 is inserted into the planting hole 6.
  • the opening edge (opening 6c) on the surface side of the planting hole 6 is curved or chamfered. Therefore, the opening edge (opening part 6c) on the surface side of the planting hole 6 functions as a guide when inserting the hair bundle 5A, and the hair bundle 5A can be easily inserted into the planting hole 6. it can.
  • the heating and melting device 8 After inserting the hair bundle 5A through the planting hole 6, as shown in FIG. 5C, one end of the hair bundle 5A on the back side of the head part 4 is melted and solidified by the heating and melting device 8.
  • the massive portion 5B is formed.
  • a generally used heating and melting apparatus such as a heater or an impulse welder (IPW) can be used.
  • IPW impulse welder
  • the shape of the lump portion 5B cannot be adjusted because it is heated and melted close to (not in contact with) one end portion of the hair bundle 5A. Therefore, there is a possibility that the block portion 5B cannot be accommodated in the large-diameter portion 6b in the pushing step of the subsequent step.
  • IPW impulse welder
  • the lump part 5B is formed using an impulse welder (IPW) is demonstrated.
  • IPW impulse welder
  • it has a heating chip 8a, and a cavity 8a1 having a predetermined shape is formed in the heating chip 8a.
  • the heating chip 8a is lowered from the state shown in FIG.
  • FIG.7 (b) the one end part of 5 A of hair
  • one end portion of the hair bundle 5A is formed by the cavity 8a, and can be formed into a lump portion 5B having a predetermined shape.
  • the push pin 9 causes the bottom surface of the large-diameter portion 6b.
  • the lump portion 5B is pushed into the formed locking portion 6a, and the lump portion 5B is locked to the locking portion 6a.
  • the method of pushing the block portion 5B with the push pin 9 has been described.
  • the present invention is not limited to this, and a nozzle for injecting air is provided, and the air is injected into the block portion 5B. Then, the block 5B may be pushed in.
  • the hair bundle fixing portion 7 is formed as shown in FIG.
  • An impulse welder (IPW) is used to form the hair bundle fixing portion 7.
  • fixed part 7 is demonstrated based on FIG.
  • the impulse welder (IPW) includes the heating chip 8b, and the heating chip 8b is formed with a cavity 8b1 having a predetermined shape (see FIG. 8A).
  • the heating tip 8b is lowered, the wall 4c is accommodated in the cavity 8a, and is melted by heating.
  • the wall 4c falls in a direction covering the back side of the massive portion 5B, closes the upper opening 6b1 of the large diameter portion 6b, and fixes the massive portion 5B.
  • a fixing portion 7 is formed.
  • the massive portion 5B is embedded and fixed in the head portion 4 when the wall portion 4c is heated and melted and solidified.
  • the head portion 4 teethbrush 1 is completed by raising the heating tip 8b.
  • the bristle bundle fixing part 7 is formed by melting and solidifying a part of the head part 4 (wall part 4c), the fixing part for fixing the bristle bundle like a conventional toothbrush and the head part are formed. There is no interface and the mechanical strength can be increased. Moreover, since the molding die 50 is not required unlike the conventional toothbrush, the head part 4 (toothbrush 1) can be manufactured at low cost. In addition, unlike the conventional toothbrush, the lower ends of the bristles constituting the hair bundle are not bonded to each other, and the lower ends of the bristles are bonded to the toothbrush main body (head portion). Absent.
  • the shape does not follow the hair bundle, A gap is formed between the lower end portion of the bristles and the toothbrush body portion (head portion), and the shape of the flock hole can be maintained.
  • the hair bundle fixing portion 7 of the above embodiment includes a wall portion 4c, which is a part of the head portion, formed so as to surround the planting hole 6 (large diameter portion 6b) on the back side of the head portion 4. It is formed by melting and solidifying.
  • the first modified example is a blocking member that is arranged on the back side of the planting hole (large-diameter portion 6b) (is a separate member from the head portion) and has an outer shape that is cylindrical or frustoconical. It is characterized in that it is formed by melting and solidifying 10A.
  • the closing member 10 ⁇ / b> A is disposed on the back side (large diameter portion 6 b side) of the planting hole 6.
  • the heating tip 8b of the impulse welder (IPW) is lowered, and the closing member 10A is accommodated in the cavity 8a and melted by heating.
  • the closing member 10A falls in a direction to cover the back side of the massive portion 5B, closes the opening 6b1 of the large diameter portion 6b, and fixes the massive portion 5B. 7 is formed. That is, the block portion 5B is embedded and fixed in the head portion 4 when the closing member 10A is heated and melted and solidified.
  • the head portion 4 teethbrush 1 is completed by raising the heating tip 8b.
  • FIG. 10 members that are the same as or correspond to those shown in FIGS. 1 to 8 are given the same reference numerals, and descriptions thereof are omitted.
  • This second modification is formed by melting a closing member 10B which is arranged on the back side of the planting hole (which is a separate member from the head portion) and has an outer shape that is spherical or has an elliptical cross section.
  • FIG. 10B the obstruction
  • occlusion member 10B is arrange
  • the outer shape of the closing member 10B is formed in a spherical shape or an elliptical cross section, a part of the closing member 10B enters the large diameter portion 6b and is temporarily fixed.
  • the heating chip 8b of the impulse welder (IPW) is lowered, the closing member 10B is accommodated in the cavity 8a, heated, melted and solidified to fix the massive portion 5B.
  • a hair bundle fixing part 7 is formed. That is, the block portion 5B is embedded and fixed in the head portion 4 when the closing member 10B is heated and melted and solidified.
  • the head portion 4 teethbrush 1 is completed by raising the heating tip 8b.
  • FIG. 11 the same or corresponding members as those shown in FIGS. 1 to 8 are designated by the same reference numerals, and the description thereof is omitted.
  • This third modification is characterized in that it is formed by melting and solidifying a sheet-like closing member 10C that is disposed on the back side of the planting hole (which is a separate member from the head portion). .
  • the case where the large diameter part 6b is not formed is shown.
  • the closing member 10 ⁇ / b> C is disposed on the back side of the planting hole 6.
  • the closing member 10 ⁇ / b> C is temporarily fixed by being placed on the upper surface (back surface) of the head portion 4.
  • the lump portion 5B is locked to the locking portion 6a with the upper edge portion of the planting hole 6 serving as the locking portion 6a.
  • the heating tip 8b of the impulse welder (IPW) is lowered, the closing member 10C is accommodated in the cavity 8a, heated, melted and solidified to fix the massive portion 5B.
  • a hair bundle fixing part 7 is formed. That is, the block portion 5B is embedded and fixed in the head portion 4 (the back surface of the head portion) when the closing member 10C is heated and melted and solidified.
  • the head part 4 teethbrush 1 is completed by raising the said heating chip
  • fixed part was formed by melt-solidifying a part of head part or the said synthetic resin sealing member different from the said head part.
  • the present invention is not limited to this, and the large-diameter portion 6b may be filled with a back surface filling material (synthetic resin) by a molding apparatus as in the prior art.
  • the back surface filler Synthetic resin
  • the hair bundle fixing part 7 capable of reliably fixing the hair bundle can be formed.
  • brushes such as a hair brush, a body brush, a makeup brush, a shoe brush, and a clothes brush, are applied. be able to.
  • the head portion 4 of the hair washing brush is formed in an annular shape, and a through hole 4A is formed at the center thereof. This through hole 4A is formed for draining water.
  • a hair bundle fixing portion 7 is provided for each of the plurality of planting holes and individually. This hair bundle fixing portion 7 covers the back side of the lump portion of the hair bundle locked to the locking portion and closes the planting hole (large diameter portion), in a state where the resin is melted and solidified. It is.
  • the hair washing brush configured in this way has the effect of good drainage and good usability that can maintain the predetermined flexibility of the hair bundle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Brushes (AREA)
PCT/JP2016/062313 2015-09-28 2016-04-19 ブラシ及びブラシの製造方法 WO2017056539A1 (ja)

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KR200490316Y1 (ko) * 2017-12-07 2019-10-25 김동민 머리카락 끼임현상이 방지되는 쿠션 브러쉬
US11723453B2 (en) 2017-12-12 2023-08-15 Koninklijke Philips N.V. Brush head assembly and methods of manufacture

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JPS60116303A (ja) * 1983-11-16 1985-06-22 アンカー　アドヴァンスト　プロダクツ　インコーポレイテッド ブラシおよびブラシ装造方法
DE19738256A1 (de) * 1997-09-02 1999-03-11 Rueb F A Holding Gmbh Verfahren und Vorrichtung zum Herstellen von Borstenfeldern sowie damit hergestelltes Borstenfeld
US20010038237A1 (en) * 2000-03-21 2001-11-08 Boucherie Bart Gerard Method and device of melting together fiber ends
US6406099B2 (en) * 1999-12-22 2002-06-18 G.B. Boucherie N.V. Method to attach brush bristle tufts onto carriers made of thermoplastic material
DE10303548A1 (de) * 2003-01-29 2004-08-12 M + C Schiffer Gmbh Bürste und Verfahren zu deren Herstellung
US20100043165A1 (en) * 2008-06-20 2010-02-25 M + C Schiffer Gmbh Brush, particularly toohbrush and method for the manufacture thereof
US20110225758A1 (en) * 2010-03-19 2011-09-22 Chung Tae Sang Method for manufacturing toothbrush and toothbrush manufactured by the method
WO2016008576A1 (de) * 2014-07-15 2016-01-21 Zahoransky Ag Trägerplättchen und bürste, insbesondere zahnbürste mit trägerplättchen.

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EP2534974B1 (en) * 2011-06-15 2015-04-29 Braun GmbH Method for producing a brush head
ES2830074T3 (es) * 2014-12-19 2021-06-02 Mc Schiffer Gmbh Cepillo y procedimiento para su producción

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JPS60116303A (ja) * 1983-11-16 1985-06-22 アンカー　アドヴァンスト　プロダクツ　インコーポレイテッド ブラシおよびブラシ装造方法
DE19738256A1 (de) * 1997-09-02 1999-03-11 Rueb F A Holding Gmbh Verfahren und Vorrichtung zum Herstellen von Borstenfeldern sowie damit hergestelltes Borstenfeld
US6406099B2 (en) * 1999-12-22 2002-06-18 G.B. Boucherie N.V. Method to attach brush bristle tufts onto carriers made of thermoplastic material
US20010038237A1 (en) * 2000-03-21 2001-11-08 Boucherie Bart Gerard Method and device of melting together fiber ends
DE10303548A1 (de) * 2003-01-29 2004-08-12 M + C Schiffer Gmbh Bürste und Verfahren zu deren Herstellung
US20100043165A1 (en) * 2008-06-20 2010-02-25 M + C Schiffer Gmbh Brush, particularly toohbrush and method for the manufacture thereof
US20110225758A1 (en) * 2010-03-19 2011-09-22 Chung Tae Sang Method for manufacturing toothbrush and toothbrush manufactured by the method
WO2016008576A1 (de) * 2014-07-15 2016-01-21 Zahoransky Ag Trägerplättchen und bürste, insbesondere zahnbürste mit trägerplättchen.

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