JP2012218275A - Connecting structure and connecting method - Google Patents

Connecting structure and connecting method Download PDF

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Publication number
JP2012218275A
JP2012218275A JP2011085697A JP2011085697A JP2012218275A JP 2012218275 A JP2012218275 A JP 2012218275A JP 2011085697 A JP2011085697 A JP 2011085697A JP 2011085697 A JP2011085697 A JP 2011085697A JP 2012218275 A JP2012218275 A JP 2012218275A
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Japan
Prior art keywords
hole
welding
welding boss
extending
connection structure
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JP2011085697A
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Japanese (ja)
Inventor
Yutaka Kato
豊 加藤
Katsumi Otani
克実 大谷
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Panasonic Corp
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Panasonic Corp
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Priority to JP2011085697A priority Critical patent/JP2012218275A/en
Publication of JP2012218275A publication Critical patent/JP2012218275A/en
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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
    • B29C65/02—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
    • 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
    • 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
    • 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
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • 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
    • B29C66/30325—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 cavities 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—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
    • 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
    • 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
    • B29C66/81425—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 stepped, e.g. comprising a shoulder
    • 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
    • B29C66/81429—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 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
    • B29C66/814—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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/737—Articles provided with holes, e.g. grids, sieves

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

Abstract

PROBLEM TO BE SOLVED: To provide a connecting structure which reduces the heating time when members are connected and suppresses degradation of connection strength.SOLUTION: The connecting structure includes a first member 3 which has a first face 3a, a second face 3b opposite to the first face 3a, and a through-hole 4 penetrating from the first face 3a to the second face 3b, and a second member 1 which has a base 21 having a third face 21a, the base 21 being formed opposite to the first face 3a of the first member 3, a projection 22 which is formed on the third face 21a and is put through the through-hole 4, and three extending portions 2e extending radially around the through-hole 4 from the front end of the projection 22 to the outside of the through-hole 4 on the second face 3b. The first member 3 and the second member 1 are connected in a form of being held by the third face 21a and the extending portions 2e.

Description

本発明は、２つの部材の一方に設けられた熱可塑性材料からなる部材を利用して、２つの部材を連結してなる連結構造および当該連結構造を得るための連結方法に関する。   The present invention relates to a connection structure formed by connecting two members using a member made of a thermoplastic material provided on one of the two members, and a connection method for obtaining the connection structure.

従来、一方の部材に突設された溶着ボスを他方の部材に貫設された孔に挿通した後に、孔から突出した溶着ボスの先端部分を溶着治具により加熱溶融して孔の径よりも大きくすることにより、一方の部材と他方の部材とを連結する連結方法が提案されている（例えば、特許文献１参照）。   Conventionally, after a welding boss protruding from one member is inserted into a hole penetrating the other member, the tip of the welding boss protruding from the hole is heated and melted by a welding jig to be larger than the diameter of the hole. A connecting method for connecting one member and the other member by increasing the size has been proposed (see, for example, Patent Document 1).

特許文献１に記載されている連結方法では、図７（ａ）に示すように、厚み方向に貫通する貫通孔５４が貫設されてなる第１の部材５３と、第１の部材５３に対向する面側における貫通孔５４に対応する部位に熱可塑性のプラスチックからなる溶着ボス５２が突設された第２の部材５１とを連結する。   In the connection method described in Patent Document 1, as shown in FIG. 7A, the first member 53 formed by penetrating a through hole 54 penetrating in the thickness direction is opposed to the first member 53. A second member 51 having a welding boss 52 made of a thermoplastic plastic projectingly connected to a portion corresponding to the through hole 54 on the surface side to be connected.

この溶着ボス５２は、図７（ｂ）に示すように、円柱状の大径部５２Ｌと、当該大径部５２Ｌの先端面から突出する円柱状の小径部５２Ｓとから構成されている。また、溶着ボス５２の小径部５２Ｓは、先端面５２ａの中央部に凹部５２ｂが形成されてなる。   As shown in FIG. 7B, the welding boss 52 includes a cylindrical large-diameter portion 52L and a cylindrical small-diameter portion 52S protruding from the tip surface of the large-diameter portion 52L. The small-diameter portion 52S of the welding boss 52 is formed with a recess 52b at the center of the tip surface 52a.

一方、溶着治具５５は、図７（ｂ）及び図８（ａ）乃至（ｃ）に示すように、小径部５２Ｓの先端部５２ａとの当接面５５ａにおいて、中央部に溶着ボス５２の凹部５２ｂに嵌合する略円錐状の凸部５５ｂが形成されている。   On the other hand, as shown in FIG. 7B and FIGS. 8A to 8C, the welding jig 55 has a welding boss 52 at the center on the contact surface 55a with the tip 52a of the small diameter portion 52S. A substantially conical convex portion 55b that fits into the concave portion 52b is formed.

この連結方法のフローを、図７（ａ）乃至（ｆ）を用いて説明する。
まず、図７（ａ）および（ｂ）に示すように、溶着ボス５２の小径部５２Ｓが貫通孔５４に挿通する形で、第１の部材５３と第２の部材５１とを重ね合わせる。このとき、溶着ボス５２の先端部５２ａが、第１の部材５３における第２の部材５１とは反対側において貫通孔５４から突出する。 The flow of this connection method will be described with reference to FIGS.
First, as shown in FIGS. 7A and 7B, the first member 53 and the second member 51 are overlapped so that the small diameter portion 52 </ b> S of the welding boss 52 is inserted into the through hole 54. At this time, the front end portion 52 a of the welding boss 52 protrudes from the through hole 54 on the opposite side of the first member 53 to the second member 51.

次に、図７（ｃ）および（ｄ）に示すように、溶着ボス５２の凹部５２ｂと溶着治具５５の凸部５５ｂとを嵌合させて、溶着治具５５の当接面５５ａに設けられた凸部５５ｂの円錐面５５ｄおよび凸部５５ｂの外周部５５ｃから、溶着ボス５２の先端面５２ａの凹部５２ｂおよび凹部５２ｂの外周部５２ｃに熱を伝えることにより、溶着ボス５２を加熱溶融する。そして、溶着治具５５を第２の部材５１に押し付けると、溶着ボス５２における貫通孔５４から突出した部分における加熱溶融された部位が押し潰されて、平面視で貫通孔５４の外側に向かって押し出される。そして、図７（ｅ）および（ｆ）に示すような、貫通孔５４に挿通された突出部６２の先端部から貫通孔５４の外側に延出する延出部５２ｆが形成され、第２の部材５１と第１の部材５３とが連結される。   Next, as shown in FIGS. 7C and 7D, the concave portion 52 b of the welding boss 52 and the convex portion 55 b of the welding jig 55 are fitted and provided on the contact surface 55 a of the welding jig 55. By transferring heat from the conical surface 55d of the convex portion 55b and the outer peripheral portion 55c of the convex portion 55b to the concave portion 52b of the distal end surface 52a of the welding boss 52 and the outer peripheral portion 52c of the concave portion 52b, the welding boss 52 is heated and melted. . When the welding jig 55 is pressed against the second member 51, the heated and melted portion of the welding boss 52 protruding from the through hole 54 is crushed, and toward the outside of the through hole 54 in plan view. Extruded. Then, as shown in FIGS. 7E and 7F, an extension portion 52f extending from the tip end portion of the protruding portion 62 inserted through the through hole 54 to the outside of the through hole 54 is formed, and the second portion The member 51 and the first member 53 are connected.

この特許文献１に記載された連結方法では、断面形状が円形の溶着ボス５２が設けられた第２の部材５１と、開口形状が円形の貫通孔５４が貫設された第１の部材５３とを連結する。従って、溶着ボス５２のうち、溶着治具５５により加熱溶融される部分の長さについて、［数１］で表される関係が成立することになる。   In the connection method described in Patent Document 1, a second member 51 provided with a welding boss 52 having a circular cross-sectional shape, and a first member 53 having a through-hole 54 having a circular opening shape penetrated. Are connected. Therefore, in the welding boss 52, the relationship represented by [Equation 1] is established with respect to the length of the portion heated and melted by the welding jig 55.

Figure 2012218275
Figure 2012218275

ここにおいて、Ｌ０は、溶着ボス５２における加熱溶融される部位の長さ、ｄは、溶着ボス５２の径（直径）、Ｄは、延出部５２ｆの径（直径）、Ｔは、延出部５２ｆの厚みを示す。   Here, L0 is the length of the part to be heated and melted in the welding boss 52, d is the diameter (diameter) of the welding boss 52, D is the diameter (diameter) of the extension part 52f, and T is the extension part. The thickness of 52f is shown.

特開２００８−１６２１２５号公報JP 2008-162125 A

ところで、第１の部材５３に電子部品などが実装されている場合、溶着ボス５２を加熱溶融する時間が長くなると、電子部品にまで熱が伝わり、電子部品の温度が上昇し、電子部品が故障してしまうおそれがある。   By the way, when an electronic component or the like is mounted on the first member 53, if the time for heating and melting the welding boss 52 becomes long, heat is transferred to the electronic component, the temperature of the electronic component rises, and the electronic component breaks down. There is a risk of it.

溶着ボス５２における、加熱溶融する部分の長さを短くすることにより、溶着ボス５２における加熱溶融する部分の体積を小さくすることで、加熱する時間を短縮することが考えられるが、［数１］から分かるように、溶着ボス５２の径ｄが同じであれば、延出部５２ｆの径Ｄが小さくなってしまうので、第１の部材５３と第２の部材５１との連結強度が大きく低下してしまう。   Although it is conceivable to shorten the heating time by shortening the length of the heat-melting portion of the welding boss 52 to reduce the volume of the heat-melting portion of the welding boss 52, [Equation 1] As can be seen from the graph, if the diameter d of the welding boss 52 is the same, the diameter D of the extending portion 52f is reduced, so that the connection strength between the first member 53 and the second member 51 is greatly reduced. End up.

本発明は、上記事由に鑑みてなされたものであり、連結時の加熱時間の短縮を図りつつ、連結強度の低下を抑制することができる連結構造を提供することを目的とする。   This invention is made | formed in view of the said reason, and it aims at providing the connection structure which can suppress the fall of connection strength, aiming at shortening of the heating time at the time of connection.

本発明に係る連結構造は、第１の面と当該第１の面とは反対側の第２の面とを有し、第１の面から第２の面まで貫通する貫通孔が形成されてなる第１の部材と、第１の部材の第１の面に対向する第３の面を有し、第３の面に設けられ且つ貫通孔に挿通された熱可塑性材料からなる突出部および当該突出部の先端部から第２の面における貫通孔の外側へ貫通孔を中心として放射状に延出してなる熱可塑性材料からなる複数の延出部を有する第２の部材とを備え、第３の面と延出部とで挟持する形で、第１の部材と第２の部材とを連結してなる。   The connection structure according to the present invention has a first surface and a second surface opposite to the first surface, and a through-hole penetrating from the first surface to the second surface is formed. And a projecting portion made of a thermoplastic material having a third surface facing the first surface of the first member, the third surface facing the first surface, and being inserted through the through hole. A second member having a plurality of extending portions made of a thermoplastic material radially extending from the tip portion of the protruding portion to the outside of the through hole on the second surface with the through hole as a center, and a third member The first member and the second member are connected to each other so as to be sandwiched between the surface and the extending portion.

本構成によれば、延出部の体積を低減することにより、連結時の加熱時間の短縮を図りつつ、延出部が平面視で円形状に形成されてなる構成に比べて、貫通孔の中心から延出部の先端部までの距離を大きくすることができ、延出部が貫通孔から抜けにくくなるので、連結強度の低下を抑制することができる。   According to this configuration, by reducing the volume of the extension portion, the heating time at the time of connection is shortened, and compared with the configuration in which the extension portion is formed in a circular shape in plan view, Since the distance from the center to the tip of the extension part can be increased and the extension part is difficult to be removed from the through hole, it is possible to suppress a decrease in connection strength.

また、本発明に係る連結構造は、上記複数の延出部が、隣接する２つの延出部同士のなす角度それぞれが互いに等しくなるように配置されてなるものであってもよい。
本構成によれば、第１の部材から第２の部材を離脱させる方向に力が加わったときに、各延出部に均等に力が加わるので、特定の延出部に力が集中的に加わることによる延出部の破損を抑制することができる。 Moreover, the connection structure which concerns on this invention may be arrange | positioned so that each of the said several extension part may mutually make the angle which two adjacent extension parts make equal.
According to this configuration, when a force is applied in a direction in which the second member is detached from the first member, a force is evenly applied to each extending portion, so that the force is concentrated on a specific extending portion. Breakage of the extended portion due to the addition can be suppressed.

また、本発明に係る連結構造は、上記延出部が、少なくとも３つ設けられてなるものであってもよい。
本構成によれば、延出部が２つ設けられてなる構成に比べて、連結強度の向上を図ることができる。 Moreover, the connection structure according to the present invention may be one in which at least three of the extending portions are provided.
According to this configuration, the connection strength can be improved as compared with the configuration in which two extending portions are provided.

また、本発明に係る連結構造は、上記第１の部材が、上記第２の面に上記第２の部材を係合するための１つ以上の係合凹部が形成されてなり、上記第２の部材が、上記延出部における上記係合凹部に対応する部位に係合突起が形成されてなるものであってもよい。   Further, in the connection structure according to the present invention, the first member is formed with one or more engaging recesses for engaging the second member on the second surface, and the second member. The member may have an engaging projection formed at a portion of the extending portion corresponding to the engaging recess.

本構成によれば、延出部が接触している第１の部材に形成された１つ以上の係合凹部に、延出部に形成された係合突起を埋没させることで、延出部が第２の面に沿って摺動しにくくなるので、第１の部材と第２の部材との連結強度が向上する。   According to this configuration, the extension portion is formed by burying the engagement protrusion formed in the extension portion in one or more engagement recesses formed in the first member that is in contact with the extension portion. Since it becomes difficult to slide along a 2nd surface, the connection strength of a 1st member and a 2nd member improves.

また、本発明に係る連結構造は、上記係合凹部の外形サイズが、上記延出部の外形サイズよりも小さく形成されてなるものであってもよい。
本構成によれば、延出部における係合凹部に対向する面側を係合凹部の外周部全体に亘って密着させることができるので、連結構造の強度の向上を図ることができる。 Moreover, the connection structure which concerns on this invention may be formed so that the external size of the said engagement recessed part may be smaller than the external size of the said extension part.
According to this configuration, the surface of the extending portion that faces the engaging recess can be brought into close contact with the entire outer periphery of the engaging recess, so that the strength of the connection structure can be improved.

また、本発明に係る連結構造は、上記係合凹部が、上記貫通孔と連続して形成されてなるものであってもよい。
本構成によれば、係合凹部と貫通孔とを同時に形成することができるので、製造時の工程数を削減することができるから、製造コストの削減を図ることができる。 Moreover, the connection structure which concerns on this invention WHEREIN: The said engagement recessed part may be formed continuously with the said through-hole.
According to this configuration, since the engaging recess and the through hole can be formed at the same time, the number of manufacturing steps can be reduced, and thus the manufacturing cost can be reduced.

また、本発明に係る連結構造は、上記係合凹部が、上記第１の部材における上記第１の面から上記第２の面まで貫通するものであってもよい。
本構成によれば、連結構造の強度向上を図ることができる。 In the connection structure according to the present invention, the engaging recess may penetrate from the first surface to the second surface of the first member.
According to this configuration, the strength of the connection structure can be improved.

また、本発明は、第１の面と当該第１の面とは反対側の第２の面とを有する第１の部材に第１の面から第２の面まで貫通する形で形成された貫通孔に、第１の部材の第１の面に当接する第３の面を有する第２の部材の第３の面側に設けられた溶着ボスを貫通孔に挿通する工程と、孔から第２の面側に突出する溶着ボスの先端部を溶着治具により加熱溶融しながら押圧することにより、貫通孔に挿通された突出部および当該突出部の先端部から第２の面における貫通孔の外側へ延出してなる延出部を形成する工程とを含み、第２の部材と延出部とで第１の部材を挟持する形で、第１の部材と第２の部材とを連結する連結方法であって、溶着治具が、溶着ボスの先端部との当接面の中央部に突設された突出部と、当接面の中央部から当接面の外周部に向かって放射状に延びた複数の溝部とを有し、溶着ボスの先端部を溶着治具により加熱溶融しながら押圧すると、溶融した溶着ボスの先端部が溝部に沿って押し出されることにより延出部が形成される連結方法であってもよい。   Moreover, this invention was formed in the form penetrated from the 1st surface to the 2nd surface in the 1st member which has the 1st surface and the 2nd surface on the opposite side to the said 1st surface. Inserting a welding boss provided on the third surface side of the second member having the third surface in contact with the first surface of the first member into the through hole; 2 by pressing the tip of the welding boss protruding to the surface side while heating and melting with a welding jig, and the through hole in the second surface from the tip of the protrusion and the tip of the protrusion. A step of forming an extending portion that extends outward, and the first member and the second member are coupled in such a manner that the first member is sandwiched between the second member and the extending portion. A welding method, wherein a welding jig projects from the center of the contact surface with the tip of the welding boss, and the outer periphery of the contact surface from the center of the contact surface When the tip of the welding boss is pressed while being heated and melted by a welding jig, the tip of the melted welding boss is pushed out along the groove. The connection method in which a part is formed may be sufficient.

本構成によれば、延出部が平面視で円形状に形成されてなる場合と同じ連結強度を、より体積の少ない延出部で実現することができるので、溶着ボスにおける溶融部位の体積を低減することにより溶融エネルギーを削減することができるとともに、材料費の低減を図ることができる。そして、溶融エネルギーを低減することにより、第１の部材または第２の部材に伝わる熱量を低減することができるので、電子部品の温度が上昇することによる電子部品の故障の発生を抑制することができる。また、溶着治具を変更するだけで、従来と同じ製造方法を採用することができるので、製造コストの低減を図ることができる。   According to this configuration, the same connection strength as when the extension part is formed in a circular shape in a plan view can be realized with the extension part having a smaller volume. By reducing, it is possible to reduce the melting energy and reduce the material cost. And since heat quantity transmitted to the 1st member or the 2nd member can be reduced by reducing fusion energy, generation | occurrence | production of the failure of an electronic component by the temperature of an electronic component rising can be suppressed. it can. Further, since the same manufacturing method as the conventional one can be adopted only by changing the welding jig, the manufacturing cost can be reduced.

また、本発明は、上記複数の溝部が、隣接する２つの溝部同士のなす角度それぞれが互いに等しくなるように配置されてなる連結方法であってもよい。
本構成によれば、前記貫通孔の周囲に等間隔に配置されてなり、第１の部材から第２の部材を離脱させる方向に力が加わったときに、特定の延出部に力が集中的に加わることによる延出部の破損を抑制できる複数の延出部を形成することができる。 Further, the present invention may be a connection method in which the plurality of groove portions are arranged so that angles formed by two adjacent groove portions are equal to each other.
According to this configuration, when the force is applied in the direction of separating the second member from the first member, the force is concentrated on the specific extension portion. It is possible to form a plurality of extending portions that can suppress breakage of the extending portion due to mechanical addition.

また、本発明は、上記溝部が、少なくとも３つ設けられてなる連結方法であってもよい。
また、本発明は、上記第１の部材に、上記第２の面に上記第２の部材を係合するための１つ以上の係合凹部を形成する工程と、上記第２の部材に、上記延出部における上記係合凹部に対応する部位に係合突起を形成する工程とを含む連結方法であってもよい。 Further, the present invention may be a connection method in which at least three of the groove portions are provided.
Further, the present invention provides a step of forming one or more engaging recesses for engaging the second member on the second surface on the first member, and the second member, A connection method including a step of forming an engagement protrusion at a portion of the extension portion corresponding to the engagement recess.

本構成によれば、第１の部材と第２の部材とが連結した状態において、係合凹部と係合突起とが係合するので、連結強度を向上させることができる。   According to this configuration, in the state where the first member and the second member are connected, the engaging recess and the engaging protrusion are engaged, so that the connection strength can be improved.

実施の形態１に係る連結構造および連結方法を説明するための図であり、（ａ）は連結開始時に溶着ボスの先端側から視た平面図、（ｂ）は（ａ）におけるＡ１−Ａ１線で破断した断面図、（ｃ）は溶着ボスを加熱溶融しているときに溶着ボスの先端側から視た平面図、（ｄ）は（ｃ）におけるＡ２−Ａ２線で破断した断面図、（ｅ）は連結完了時に溶着ボスの先端側から視た平面図、（ｆ）は（ｅ）におけるＡ３−Ａ３線で破断した断面図である。It is a figure for demonstrating the connection structure and connection method which concern on Embodiment 1, (a) is the top view seen from the front end side of the welding boss | hub at the time of a connection start, (b) is the A1-A1 line | wire in (a) (C) is a plan view viewed from the front end side of the welding boss when the welding boss is heated and melted, (d) is a sectional view taken along line A2-A2 in (c), ( e) is a plan view seen from the front end side of the welding boss when connection is completed, and (f) is a cross-sectional view taken along line A3-A3 in (e). 実施の形態１に係る連結方法に用いられる溶着治具を示し、（ａ）は斜視図、（ｂ）は平面図、（ｃ）は（ｂ）におけるＡ４−Ａ４線で破断した断面図である。The welding jig used for the connection method which concerns on Embodiment 1 is shown, (a) is a perspective view, (b) is a top view, (c) is sectional drawing fractured | ruptured by the A4-A4 line in (b). . 実施の形態２に係る連結構造および連結方法を説明するための図であり、（ａ）は連結開始時に溶着ボスの先端側から視た平面図、（ｂ）は（ａ）におけるＡ１−Ａ１線で破断した断面図、（ｃ）は溶着ボスを加熱溶融しているときに溶着ボスの先端側から視た平面図、（ｄ）は（ｃ）におけるＡ２−Ａ２線で破断した断面図、（ｅ）は連結完了時に溶着ボスの先端側から視た平面図、（ｆ）は（ｅ）におけるＡ３−Ａ３線で破断した断面図である。。It is a figure for demonstrating the connection structure and connection method which concern on Embodiment 2, (a) is the top view seen from the front end side of the welding boss | hub at the time of a connection start, (b) is the A1-A1 line | wire in (a) (C) is a plan view viewed from the front end side of the welding boss when the welding boss is heated and melted, (d) is a sectional view taken along line A2-A2 in (c), ( e) is a plan view seen from the front end side of the welding boss when connection is completed, and (f) is a cross-sectional view taken along line A3-A3 in (e). . 実施の形態３に係る連結構造および連結方法を説明するための図であり、（ａ）は連結開始時に溶着ボスの先端側から視た平面図、（ｂ）は（ａ）におけるＡ１−Ａ１線で破断した断面図、（ｃ）は溶着ボスを加熱溶融しているときに溶着ボスの先端側から視た平面図、（ｄ）は（ｃ）におけるＡ２−Ａ２線で破断した断面図、（ｅ）は連結完了時に溶着ボスの先端側から視た平面図、（ｆ）は（ｅ）におけるＡ３−Ａ３線で破断した断面図である。It is a figure for demonstrating the connection structure and connection method which concern on Embodiment 3, (a) is the top view seen from the front end side of the welding boss | hub at the time of a connection start, (b) is the A1-A1 line | wire in (a) (C) is a plan view viewed from the front end side of the welding boss when the welding boss is heated and melted, (d) is a sectional view taken along line A2-A2 in (c), ( e) is a plan view seen from the front end side of the welding boss when connection is completed, and (f) is a cross-sectional view taken along line A3-A3 in (e). 実施の形態４に係る連結構造および連結方法を説明する図であり、（ａ）は連結開始時に溶着ボスの先端側から視た平面図、（ｂ）は（ａ）におけるＡ１−Ａ１線で破断した断面図、（ｃ）は溶着ボスを加熱溶融しているときに溶着ボスの先端側から視た平面図、（ｄ）は（ｃ）におけるＡ２−Ａ２線で破断した断面図、（ｅ）は連結完了時に溶着ボスの先端側から視た平面図、（ｆ）は（ｅ）におけるＡ３−Ａ３線で破断した断面図である。It is a figure explaining the connection structure and connection method which concern on Embodiment 4, (a) is the top view seen from the front end side of the welding boss | hub at the time of a connection start, (b) is fractured | ruptured by the A1-A1 line in (a) (C) is a plan view seen from the front end side of the welding boss when the welding boss is heated and melted, (d) is a sectional view taken along line A2-A2 in (c), (e) Is a plan view seen from the front end side of the welding boss when connection is completed, and (f) is a cross-sectional view taken along line A3-A3 in (e). 実施の形態５に係る連結構造および連結方法を説明する図であり、（ａ）は連結開始時の溶着ボスの先端側から視た平面図、（ｂ）は（ａ）におけるＡ１−Ａ１線で破断した断面図、（ｃ）は溶着ボスを加熱溶融しているときに溶着ボスの先端側から視た平面図、（ｄ）は（ｃ）におけるＡ２−Ａ２線で破断した断面図、（ｅ）は連結完了時に溶着ボスの先端側から視た平面図、（ｆ）は（ｅ）におけるＡ３−Ａ３線で破断した断面図である。It is a figure explaining the connection structure and connection method which concern on Embodiment 5, (a) is the top view seen from the front end side of the welding boss | hub at the time of a connection start, (b) is the A1-A1 line in (a). Sectional view broken, (c) is a plan view seen from the front end side of the welding boss when the welding boss is heated and melted, (d) is a sectional view taken along line A2-A2 in (c), (e ) Is a plan view seen from the front end side of the welding boss when connection is completed, and (f) is a sectional view taken along line A3-A3 in (e). 従来例に係る連結方法において、（ａ）は連結開始時における平面図（溶着ボス先端面側から視た）、（ｂ）は（ａ）におけるＡ１−Ａ１線で破断した断面図、（ｃ）は溶着治具により溶着ボスを加熱溶融している状態における平面図、（ｄ）は（ｃ）におけるＡ２−Ａ２線で破断した断面図、（ｅ）は連結後における平面図、（ｆ）は（ｅ）においてＡ３−Ａ３線で破断した断面図である。In the connection method which concerns on a prior art example, (a) is a top view at the time of a connection start (viewed from the front end surface side of the welding boss | hub), (b) is sectional drawing fractured | ruptured by the A1-A1 line in (a), (c). Is a plan view in a state where the welding boss is heated and melted by a welding jig, (d) is a sectional view taken along line A2-A2 in (c), (e) is a plan view after connection, and (f) is It is sectional drawing fractured | ruptured in the A3-A3 line in (e). 従来例に係る連結方法に用いられる溶着治具を示し、（ａ）は斜視図、（ｂ）は平面図、（ｃ）は（ｂ）におけるＡ４−Ａ４線で破断した断面図である。The welding jig | tool used for the connection method which concerns on a prior art example is shown, (a) is a perspective view, (b) is a top view, (c) is sectional drawing fractured | ruptured by the A4-A4 line in (b).

＜実施の形態１＞
本実施の形態に係る連結構造は、図１（ｅ）および（ｆ）に示すように、板状の第１の部材３と、円柱状の突出部２２が設けられた第２の部材１とを連結してなる構造である。 <Embodiment 1>
As shown in FIGS. 1E and 1F, the connection structure according to the present embodiment includes a plate-like first member 3 and a second member 1 provided with a columnar protrusion 22. It is the structure formed by connecting.

第１の部材３は、第１の面３ａと第１の面３ａとは反対側の第２の面３ｂとを有し、第１の面３ａから第２の面３ｂまで貫通する貫通孔４が形成されてなる。
第２の部材１は、熱可塑性樹脂等により形成され、板状の主部１１と、主部１１における第１の部材３の第１の面３ａに対向する面側に形成された円柱状の基台部２１とを備える。また、突出部２２は、基台部２１の第３の面２１ａ上に基台部２１と連続一体に設けられている。この突出部２２は、第１の部材３に貫設された貫通孔４に挿通されており、基台部２１の第３の面２１ａに第１の部材３の第１の面３ａが当接している。また、突出部２２の先端部から第２の面３ｂに沿って貫通孔４の外側へ貫通孔４を中心として放射状に３つの延出部２ｅが延出しており、基台部２１の第３の面２１ａと延出部２ｅとで第１の部材３を挟持している。 The first member 3 has a first surface 3a and a second surface 3b opposite to the first surface 3a, and a through hole 4 penetrating from the first surface 3a to the second surface 3b. Is formed.
The second member 1 is formed of a thermoplastic resin or the like, and has a plate-like main portion 11 and a columnar shape formed on the surface of the main portion 11 facing the first surface 3a of the first member 3. The base part 21 is provided. Further, the protruding portion 22 is provided on the third surface 21 a of the base portion 21 so as to be continuously integrated with the base portion 21. The projecting portion 22 is inserted into a through hole 4 penetrating the first member 3, and the first surface 3 a of the first member 3 comes into contact with the third surface 21 a of the base portion 21. ing. Further, three extending portions 2e extend radially from the tip end portion of the protruding portion 22 to the outside of the through hole 4 along the second surface 3b, with the through hole 4 being the center. The first member 3 is sandwiched between the surface 21a and the extending portion 2e.

次に、第１の部材３と第２の部材１とを連結する前における第２の部材１の構造についてする。
第２の部材１は、図１（ａ）および（ｂ）に示すように、第１の部材３の第１の面３ａに対向する側に、基台部２１、突出部２２および延出部２ｅの基となる溶着ボス２が設けられてなる。この溶着ボス２は、図１（ａ）および（ｂ）に示すように、略円柱状に形成され、貫通孔４よりも径が大きい大径部２Ｌと、貫通孔４よりも径がやや小さい小径部２Ｓとから構成されている。ここで、小径部２Ｓは、軸方向の長さが第２の部材１の厚みよりも長くなるように形成されており、小径部２Ｓを貫通孔４に挿通させる形で、第１の部材３と第２の部材１とを重ね合わせと、小径部２Ｓの先端部２ａが、第１の部材３の第２の面側に突出する。また、小径部２Ｓの先端部２ａは、中央部に凹部２ｂが形成されている。 Next, the structure of the second member 1 before connecting the first member 3 and the second member 1 will be described.
As shown in FIGS. 1A and 1B, the second member 1 has a base portion 21, a protruding portion 22, and an extending portion on the side facing the first surface 3 a of the first member 3. The welding boss | hub 2 used as the basis of 2e is provided. As shown in FIGS. 1A and 1B, the welding boss 2 is formed in a substantially cylindrical shape, and has a large diameter portion 2 </ b> L having a diameter larger than that of the through hole 4 and a diameter slightly smaller than that of the through hole 4. It is comprised from the small diameter part 2S. Here, the small diameter portion 2S is formed such that the axial length is longer than the thickness of the second member 1, and the first member 3 is inserted into the through hole 4 through the small diameter portion 2S. When the first member 3 and the second member 1 are overlapped, the tip portion 2a of the small diameter portion 2S protrudes to the second surface side of the first member 3. Moreover, the front-end | tip part 2a of the small diameter part 2S has the recessed part 2b in the center part.

次に、第１の部材３と第２の部材１との連結の際に、溶着ボス２の溶融に使用する溶着治具５の構造について説明する。
溶着治具５は、図１（ｂ）および図２（ａ）乃至（ｃ）に示すように、略円柱状に形成されており、溶着ボス２に当接させる当接面５ａには、中央部に形成された円形の第１の溝部５ｃと、第１の溝部５ｃの略中央部に突設され溶着ボス２の凹部２ｂに嵌合する形状に形成された凸部５ｂと、第１の溝部５ｃから外側に向かって放射状に延出する３つの第２の溝部５ｅとが設けられている。ここで、凸部５ｂは、略円錐状に形成されている。そして、溶着治具５の当接面５ａを溶着ボス２の先端部２ａに当接させたときに、当接面５ａのうち第１の溝部５ｃおよび第２の溝部５ｅ以外の部位５ｆが、第１の部材３の第２の面３ｂに当接するとともに、凸部５ｂの円錐面５ｄが溶着ボス２の凹部２ｂの周面に接触し、第１の溝部５ｃの底面における凸部５ｂの外周部が溶着ボス２の先端部２ａにおける凹部２ｂの外周部２ｃに接触することになる。 Next, the structure of the welding jig 5 used for melting the welding boss 2 when the first member 3 and the second member 1 are connected will be described.
As shown in FIG. 1B and FIGS. 2A to 2C, the welding jig 5 is formed in a substantially cylindrical shape, and the contact surface 5a to be brought into contact with the welding boss 2 has a central portion. A circular first groove portion 5c formed in the portion, a convex portion 5b formed in a shape protruding from a substantially central portion of the first groove portion 5c and fitted into the concave portion 2b of the welding boss 2, Three second groove portions 5e extending radially outward from the groove portion 5c are provided. Here, the convex part 5b is formed in the substantially cone shape. When the contact surface 5a of the welding jig 5 is brought into contact with the tip 2a of the welding boss 2, the portion 5f other than the first groove 5c and the second groove 5e on the contact surface 5a is While contacting the 2nd surface 3b of the 1st member 3, the conical surface 5d of the convex part 5b contacts the surrounding surface of the recessed part 2b of the welding boss | hub 2, and the outer periphery of the convex part 5b in the bottom face of the 1st groove part 5c The portion comes into contact with the outer peripheral portion 2 c of the concave portion 2 b at the distal end portion 2 a of the welding boss 2.

次に、本実施の形態に係る連結方法について説明する。
まず、図１（ａ）および（ｂ）に示すように、溶着ボス２の先端部２ａと溶着治具５の当接面５ａとを接近させていき（図１（ｂ）中の矢印参照）、溶着ボス２の先端部２ａに形成された凹部２ｂに溶着治具５の当接面５ａに形成された凸部５ｂが嵌合する形で、溶着ボス２の先端部２ａに溶着治具５の当接面５ａを当接させる。 Next, a connection method according to the present embodiment will be described.
First, as shown in FIGS. 1A and 1B, the tip 2a of the welding boss 2 and the contact surface 5a of the welding jig 5 are brought close to each other (see the arrow in FIG. 1B). The welding jig 5 is attached to the distal end portion 2a of the welding boss 2 in such a manner that the convex portion 5b formed on the contact surface 5a of the welding jig 5 is fitted in the concave portion 2b formed in the distal end portion 2a of the welding boss 2. Are brought into contact with each other.

続いて、溶着治具５を第２の部材１に押さえ付ける方向に、溶着ボス２に圧力を加えながら、溶着治具５から溶着ボス２に熱を伝える。このとき、溶着治具５からは、主に凸部５ｂの円錐面５ｄおよび第１の溝部５ｃの底面を介して溶着ボス２に熱が伝わる。すると、溶着ボス２は、先端部２ａから貫通孔４の内側に配置された部位までが加熱溶融され、溶融された溶着ボス２が、溶着治具５の凸部５ｂの円錐面５ｄにより、第１の溝部５ｃから第２溝部５ｅに沿って外側に押し出される（図１（ｃ）および（ｄ））。   Subsequently, heat is transmitted from the welding jig 5 to the welding boss 2 while applying pressure to the welding boss 2 in a direction in which the welding jig 5 is pressed against the second member 1. At this time, heat is transmitted from the welding jig 5 to the welding boss 2 mainly through the conical surface 5d of the convex portion 5b and the bottom surface of the first groove portion 5c. Then, the welding boss 2 is heated and melted from the front end portion 2a to the portion disposed inside the through hole 4, and the melted welding boss 2 is changed by the conical surface 5d of the convex portion 5b of the welding jig 5 to the first position. The first groove portion 5c is pushed outward along the second groove portion 5e (FIGS. 1C and 1D).

そして、図１（ｅ）および（ｆ）に示すように、放射状に３方向に延びる延出部２ｅが形成され、第１の部材３と第２の部材１とが連結された状態となる。
溶着リブ２のうち加熱溶融される部分の先端部２ａからの軸方向の長さについて、以下の［数２］に示す関係式が成立する。 And as shown to FIG.1 (e) and (f), the extension part 2e extended in 3 directions radially is formed, and it will be in the state which the 1st member 3 and the 2nd member 1 were connected.
The relational expression shown in the following [Equation 2] is established for the length in the axial direction from the tip 2a of the portion to be heated and melted in the welding rib 2.

Figure 2012218275
Figure 2012218275

ここにおいて、溶着ボス２が加熱溶融される部分の長さをＬ、溶着ボス２の直径をｄ、延出部２ｅに外接する円の直径をＤ、延出部２ｅの厚みをＴ、平面視における３本の延出部２ｅおよび演出部２ｅに外接する円のうち平面視で延出部２ｅと重ならない部位の面積をＳとしている。   Here, the length of the portion where the welding boss 2 is heated and melted is L, the diameter of the welding boss 2 is d, the diameter of the circle circumscribing the extending portion 2e is D, the thickness of the extending portion 2e is T, and the plan view Of the circle circumscribing the three extending portions 2e and the rendering portion 2e, the area of the portion that does not overlap the extending portion 2e in plan view is S.

［数１］および［数２］とを比較すると、従来例における平面視円形状の延出部５２ｆの直径Ｄ１と、本実施の形態に係る延出部２ｅに外接する円の直径Ｄとを同じにしながらも、溶着ボス２における加熱溶融される部分の長さをＬ−Ｌ０＝ＳＴ／［π（ｄ／２）２］だけ短くすることができることがわかる。   Comparing [Equation 1] and [Equation 2], the diameter D1 of the extending portion 52f having a circular shape in plan view in the conventional example and the diameter D of the circle circumscribing the extending portion 2e according to the present embodiment are obtained. Although it is the same, it can be seen that the length of the part to be heated and melted in the welding boss 2 can be shortened by L−L0 = ST / [π (d / 2) 2].

結局、本実施の形態に係る連結構造は、溶着ボス２における加熱溶融される部分の長さの短縮、即ち、加熱溶融される部分の体積の縮小を図ることができるので、加熱溶融に必要な熱エネルギーを低減することができるから、連結強度の低下を抑制しながらも加熱時間を短縮することができる。これにより、例えば、第１の部材３に電子部品が実装されている場合には、第１の部材３に伝わる熱量を抑えることができるので、電子部品が高温になることによる電子部品の故障を防ぐことができる。また、平面視円形状の構成とした場合に比べて、貫通孔４の中心から延出部２ｅの先端部までの距離（貫通孔４の中心から延出部２ｅの先端部に外接する円の半径Ｄ／２）を大きくすることができるので、延出部２ｅが貫通孔４から抜けにくくなるので、連結強度の向上が図れる。更に、溶着ボス２の形成に必要な材料を減らすことができ、コスト低減を図ることができる。   Eventually, the connection structure according to the present embodiment can shorten the length of the heat-melted portion of the welding boss 2, that is, reduce the volume of the heat-melted portion, which is necessary for heat melting. Since the heat energy can be reduced, the heating time can be shortened while suppressing a decrease in the connection strength. Thereby, for example, when an electronic component is mounted on the first member 3, the amount of heat transmitted to the first member 3 can be suppressed, so that the failure of the electronic component due to the high temperature of the electronic component can be prevented. Can be prevented. Further, as compared with the case of a circular configuration in plan view, the distance from the center of the through hole 4 to the tip of the extension 2e (the circle circumscribed from the center of the through hole 4 to the tip of the extension 2e) Since the radius D / 2) can be increased, the extension portion 2e is difficult to be removed from the through hole 4, so that the connection strength can be improved. Furthermore, the material required for forming the welding boss 2 can be reduced, and the cost can be reduced.

＜実施の形態２＞
本実施の形態に係る連結構造は、実施の形態１と略同様であり、図３に示すように、第１の部材３における延出部２ｅが当接する部位の一部に、係合凹部４ｂが形成されている点のみが相違する。なお、実施の形態１と同様の構成については同一の符号を付して適宜説明を省略する。 <Embodiment 2>
The connection structure according to the present embodiment is substantially the same as that of the first embodiment. As shown in FIG. 3, the engagement recess 4b is formed in a part of the portion of the first member 3 where the extension portion 2e contacts. The only difference is that is formed. In addition, about the structure similar to Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted suitably.

係合凹部４ｂは、第１の部材３の第１の面３ａから第２の面３ｂにまで貫通しており、貫通孔４と連続一体に形成されている。そして、この係合凹部４ｂには、延出部２ｅの一部が埋没することになる。以下、この延出部２ｅにおける係合凹部４ｂに埋没している部位を係合突起２ｅ１と称する。   The engaging recess 4 b penetrates from the first surface 3 a to the second surface 3 b of the first member 3 and is formed integrally with the through hole 4. A part of the extending portion 2e is buried in the engaging recess 4b. Hereinafter, the part embedded in the engaging recess 4b in the extending part 2e is referred to as an engaging protrusion 2e1.

次に、本実施の形態に係る連結方法について説明する。
まず、図３（ａ）および（ｂ）に示すように、溶着ボス２の先端部２ａと溶着治具５の当接面５ａとを接近させていき（図１（ｂ）中の矢印参照）、溶着ボス２の先端部２ａに形成された凹部２ｂに溶着治具５の当接面５ａに形成された凸部５ｂが嵌合する形で、溶着ボス２の先端部２ａに溶着治具５の当接面５ａを当接させる。 Next, a connection method according to the present embodiment will be described.
First, as shown in FIGS. 3A and 3B, the tip 2a of the welding boss 2 and the contact surface 5a of the welding jig 5 are brought close to each other (see the arrow in FIG. 1B). The welding jig 5 is attached to the distal end portion 2a of the welding boss 2 in such a manner that the convex portion 5b formed on the contact surface 5a of the welding jig 5 is fitted in the concave portion 2b formed in the distal end portion 2a of the welding boss 2. Are brought into contact with each other.

続いて、溶着治具５を第２の部材１に押さえ付ける方向に、溶着ボス２に圧力を加えながら、溶着治具５から溶着ボス２に熱を伝える。このとき、溶着治具５からは、主に凸部５ｂの円錐面５ｄおよび第１の溝部５ｃの底面を介して溶着ボス２に熱が伝わる。すると、溶着ボス２は、先端部２ａから貫通孔４の内側に配置された部位までが加熱溶融され、溶融された溶着ボス２が、溶着治具５の凸部５ｂの円錐面５ｄにより、第１の溝部５ｃから第２溝部５ｅに沿って外側に押し出される（図３（ｃ）および（ｄ）参照）。このとき、溶融された溶着ボス２は、第１の部材３に貫設された貫通孔４の周壁から係合凹部４ｂの中へも侵入していく。   Subsequently, heat is transmitted from the welding jig 5 to the welding boss 2 while applying pressure to the welding boss 2 in a direction in which the welding jig 5 is pressed against the second member 1. At this time, heat is transmitted from the welding jig 5 to the welding boss 2 mainly through the conical surface 5d of the convex portion 5b and the bottom surface of the first groove portion 5c. Then, the welding boss 2 is heated and melted from the front end portion 2a to the portion disposed inside the through hole 4, and the melted welding boss 2 is changed by the conical surface 5d of the convex portion 5b of the welding jig 5 to the first position. The first groove portion 5c is pushed outward along the second groove portion 5e (see FIGS. 3C and 3D). At this time, the melted welding boss 2 also enters the engagement recess 4 b from the peripheral wall of the through hole 4 penetrating the first member 3.

そして、図３（ｅ）および（ｆ）に示すように、放射状に３方向に延び且つ第１の部材３に設けられた係合凹部４ｂそれぞれに嵌合する係合突起２ｅ１を有する延出部２ｅが形成され、第１の部材３を、基台部２１の第３の面２１ａと延出部２ｅにおける平面視で係合凹部４ｂと重ならない部位とで挟持する形で、第１の部材３と第２の部材１とが連結された状態となる。   Then, as shown in FIGS. 3E and 3F, the extending portion has engagement protrusions 2e1 that extend radially in three directions and fit into the engagement recesses 4b provided in the first member 3, respectively. 2e is formed, and the first member 3 is sandwiched between the third surface 21a of the base portion 21 and the portion of the extending portion 2e that does not overlap the engaging recess 4b in plan view. 3 and the 2nd member 1 will be in the connected state.

溶着リブ２のうち加熱溶融される部分の先端部２ａからの軸方向の長さについて、以下の［数３］に示す関係式が成立する。   The relational expression shown in the following [Equation 3] holds about the length in the axial direction from the tip 2a of the portion to be heated and melted in the welding rib 2.

Figure 2012218275
Figure 2012218275

ここにおいて、溶着ボス２が加熱溶融される部分の長さをＬ、溶着ボス２の直径をｄ、延出部２ｅに外接する円の直径をＤ、延出部２ｅの厚みをＴ、平面視における３本の延出部２ｅおよび延出部２ｅに外接する円のうち平面視で延出部２ｅと重ならない部位の面積をＳ１（図３（ｅ）参照）、係合突起２ｅ１の体積をＶ１としている。   Here, the length of the portion where the welding boss 2 is heated and melted is L, the diameter of the welding boss 2 is d, the diameter of the circle circumscribing the extending portion 2e is D, the thickness of the extending portion 2e is T, and the plan view The area of the three extending portions 2e and the circle circumscribing the extending portion 2e that does not overlap with the extending portion 2e in plan view is S1 (see FIG. 3 (e)), and the volume of the engaging protrusion 2e1 is V1.

［数１］および［数２］とを比較すると、従来例における平面視円形状の延出部５２ｆの直径Ｄ１と、本実施の形態に係る延出部２ｅに外接する円の直径Ｄとを同じにしながらも、溶着ボス２における加熱溶融される部分の長さをＬ−Ｌ０＝（Ｓ１×Ｔ−Ｖ１）／［π（ｄ／２）２］だけ短くすることができることがわかる。   Comparing [Equation 1] and [Equation 2], the diameter D1 of the extending portion 52f having a circular shape in plan view in the conventional example and the diameter D of the circle circumscribing the extending portion 2e according to the present embodiment are obtained. Although it is the same, it can be seen that the length of the heated and melted portion of the welding boss 2 can be shortened by L−L0 = (S1 × T−V1) / [π (d / 2) 2].

本実施の形態に係る連結構造では、延出部２ｅに、第１の部材３に形成された係合凹部４ｂに嵌合する細長の係合突起２ｅ１が形成されていることにより、実施の形態１に比べて第１の部材３の厚み方向の幅が大きくなり、第１の部材３を第２の部材１に対して基台部２１の第３の面２１ａに沿って摺動させる方向へ加わる力に対する強度が向上している。特に、第２の部材１に対して第１の部材３を貫通孔４の中心軸周りに回転させる力に対する強度が向上している。   In the connection structure according to the present embodiment, the elongated engagement protrusion 2e1 that fits into the engagement recess 4b formed in the first member 3 is formed in the extension portion 2e. The width in the thickness direction of the first member 3 is larger than the first member 3, and the first member 3 is slid along the third surface 21 a of the base portion 21 with respect to the second member 1. Strength against applied force is improved. In particular, the strength against the force of rotating the first member 3 around the central axis of the through hole 4 with respect to the second member 1 is improved.

＜実施の形態３＞
本実施の形態に係る連結構造は、実施の形態２に係る連結構造と略同様であり、図４に示すように、係合凹部４ｃが第１の部材３の厚み方向に貫通していない点のみが相違する。なお、実施の形態２の同様の構成については同一の符号を付して適宜説明を省略する。また、連結方法については、実施の形態２と略同様なので、図示のみで説明を省略する。 <Embodiment 3>
The connection structure according to the present embodiment is substantially the same as the connection structure according to the second embodiment, and the engagement recess 4c does not penetrate in the thickness direction of the first member 3 as shown in FIG. Only the difference. In addition, about the same structure of Embodiment 2, the same code | symbol is attached | subjected and description is abbreviate | omitted suitably. Further, the connection method is substantially the same as that of the second embodiment, and the description is omitted only by illustration.

本実施の形態に係る連結構造では、実施の形態２と同様に、延出部２ｅに、第１の部材３に形成された係合凹部４ｃに嵌合する細長の係合突起２ｅ１が形成されていることにより、実施の形態１に比べて第１の部材３の厚み方向の幅が大きくなり、第１の部材３を第２の部材１に対して基台部２１の第３の面２１ａに沿って摺動させる方向へ加わる力に対する強度が向上している。特に、第２の部材１に対して第１の部材３を貫通孔４の中心軸周りに回転させる力に対する強度が向上している。   In the connection structure according to the present embodiment, an elongated engagement protrusion 2e1 that fits into the engagement recess 4c formed in the first member 3 is formed in the extension portion 2e as in the second embodiment. Therefore, the width in the thickness direction of the first member 3 is larger than that in the first embodiment, and the first member 3 is made to be the third surface 21 a of the base portion 21 with respect to the second member 1. The strength against the force applied in the direction of sliding along is improved. In particular, the strength against the force of rotating the first member 3 around the central axis of the through hole 4 with respect to the second member 1 is improved.

また、係合凹部４ｃが、第１の部材３の厚み方向に貫通していないので、その分、実施の形態２に比べて、係合凹部４ｃに埋没した部位の体積（［数３］におけるパラメータＶ１）が小さくなっている。これにより、延出部２ｅの体積を実施の形態２に比べて小さくすることができるので、溶着ボス２における加熱溶融される部分の体積を小さくし、加熱溶融に必要な熱エネルギーを低減することができるから、実施の形態２に比べて加熱時間を短縮することができる。   Further, since the engaging recess 4c does not penetrate in the thickness direction of the first member 3, compared with the second embodiment, the volume of the portion buried in the engaging recess 4c (in [Equation 3] The parameter V1) is small. Thereby, since the volume of the extension part 2e can be made small compared with Embodiment 2, the volume of the part melt-heated in the welding boss | hub 2 is made small, and the thermal energy required for heat-melting is reduced. Therefore, the heating time can be shortened compared to the second embodiment.

＜実施の形態４＞
本実施の形態に係る連結構造は、実施の形態１に係る連結構造と略同様であり、図５に示すように、第１の部材３における延出部２ｅが当接する部位の一部に、係合凹部４ｄが形成されている点が相違する。なお、実施の形態１と同様の構成については同一の符号を付して説明を省略する。 <Embodiment 4>
The connection structure according to the present embodiment is substantially the same as the connection structure according to the first embodiment, and as shown in FIG. The difference is that the engaging recess 4d is formed. In addition, about the structure similar to Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.

係合凹部４ｄは、第１の部材３の第１の面３ａから第２の面３ｂにまで貫通しており、貫通孔４から離間した位置に形成されている。そして、この係合凹部４ｄには、延出部２ｅの一部が埋没することになる。以下、この延出部２ｅにおける係合凹部４ｄに埋没した部位を係合突起２ｅ１と称する。   The engaging recess 4 d penetrates from the first surface 3 a to the second surface 3 b of the first member 3 and is formed at a position separated from the through hole 4. A part of the extending portion 2e is buried in the engaging recess 4d. Hereinafter, the part buried in the engaging recess 4d in the extending part 2e is referred to as an engaging protrusion 2e1.

次に、本実施の形態に係る連結方法について説明する。
まず、図５（ａ）および（ｂ）に示すように、溶着ボス２の先端部２ａと溶着治具５の当接面５ａとを接近させる（図５（ｂ）中の矢印参照）。 Next, a connection method according to the present embodiment will be described.
First, as shown in FIGS. 5A and 5B, the tip 2a of the welding boss 2 and the contact surface 5a of the welding jig 5 are brought close to each other (see the arrow in FIG. 5B).

その後、この溶着ボス２の先端部２ａに形成された凹部２ｂに溶着治具５の当接面５ａに形成された凸部５ｂが嵌合する形で、溶着ボス２の先端部２ａに溶着治具５の当接面５ａを当接させる。   Thereafter, the convex portion 5b formed on the contact surface 5a of the welding jig 5 is fitted to the concave portion 2b formed on the distal end portion 2a of the welding boss 2 so as to be welded to the distal end portion 2a of the welding boss 2. The contact surface 5a of the tool 5 is brought into contact.

続いて、溶着治具５を第２の部材１に押さえ付ける方向に、溶着ボス２に圧力を加えながら、溶着治具５から溶着ボス２に熱を伝える。このとき、溶着治具５からは、主に凸部５ｂの円錐面５ｄおよび第１の溝部５ｃの底面を介して溶着ボス２に熱が伝わる。すると、溶着ボス２は、先端部２ａから貫通孔４の内側に配置される部位までが加熱溶融され、溶融された溶着ボス２が、溶着治具５の凸部５ｂの円錐面５ｄにより、第１の溝部５ｃから第２溝部５ｅに沿って外側に押し出される（図５（ｃ）および（ｄ）参照）。このとき、溶融された溶着ボス２は、第１の部材３の第２の面３ｂ側から係合凹部４ｄに回り込む。   Subsequently, heat is transmitted from the welding jig 5 to the welding boss 2 while applying pressure to the welding boss 2 in a direction in which the welding jig 5 is pressed against the second member 1. At this time, heat is transmitted from the welding jig 5 to the welding boss 2 mainly through the conical surface 5d of the convex portion 5b and the bottom surface of the first groove portion 5c. Then, the welding boss 2 is heated and melted from the front end portion 2 a to the portion disposed inside the through hole 4, and the melted welding boss 2 is moved by the conical surface 5 d of the convex portion 5 b of the welding jig 5. The first groove portion 5c is pushed outward along the second groove portion 5e (see FIGS. 5C and 5D). At this time, the melted welding boss 2 wraps around the engaging recess 4 d from the second surface 3 b side of the first member 3.

そして、図５（ｅ）および（ｆ）に示すように、放射状に３方向に延び且つ係合凹部４ｂそれぞれに嵌合する係合突起２ｅ１を有する延出部２ｅが形成され、第１の部材３と第２の部材１とが連結される。   Then, as shown in FIGS. 5 (e) and 5 (f), an extension portion 2e is formed which has engagement protrusions 2e1 extending radially in three directions and fitted in the engagement recesses 4b. 3 and the second member 1 are connected.

本実施の形態に係る連結構造では、第１の部材３に形成された係合凹部４ｂに、延出部２ｅに形成された係合突起２ｅ１が嵌合することにより、第１の部材３を第２の部材１に対して基台部２１の第３の面２１ａに沿って摺動させる方向へ加わる力に対する強度が向上している。特に、第２の部材１に対して第１の部材３を貫通孔４の中心軸周りに回転させる力に対する強度が向上している。
＜実施の形態５＞
本実施の形態に係る連結構造は、実施の形態４と略同様であり、図６に示すように、係合凹部４ｅが第１の部材３の厚み方向に貫通していない点のみが相違する。なお、実施の形態２の同様の構成については同一の符号を付して適宜説明を省略する。 In the connection structure according to the present embodiment, the engagement protrusion 2e1 formed on the extension portion 2e is fitted into the engagement recess 4b formed on the first member 3, whereby the first member 3 is The strength against the force applied to the second member 1 in the direction of sliding along the third surface 21a of the base portion 21 is improved. In particular, the strength against the force of rotating the first member 3 around the central axis of the through hole 4 with respect to the second member 1 is improved.
<Embodiment 5>
The connection structure according to the present embodiment is substantially the same as that of the fourth embodiment, and is different only in that the engaging recess 4e does not penetrate in the thickness direction of the first member 3 as shown in FIG. . In addition, about the same structure of Embodiment 2, the same code | symbol is attached | subjected and description is abbreviate | omitted suitably.

本実施の形態では、図６に示すように、第１の部材３に形成された係合凹部４ｅに、延出部２ｅに設けられた係合突起２ｅ１が嵌合することにより、第１の部材３を第２の部材１に対して基台部２１の第３の面２１ａに沿って摺動させる方向へ加わる力に対する強度が向上している。特に、第２の部材１に対して第１の部材３を貫通孔４の中心軸周りに回転させる力に対する強度が向上している。   In the present embodiment, as shown in FIG. 6, the engaging protrusion 2e1 provided in the extending portion 2e is fitted into the engaging recess 4e formed in the first member 3, whereby the first The strength against the force applied in the direction in which the member 3 is slid along the third surface 21a of the base portion 21 with respect to the second member 1 is improved. In particular, the strength against the force of rotating the first member 3 around the central axis of the through hole 4 with respect to the second member 1 is improved.

また、係合凹部４ｅが、第１の部材３の厚み方向に貫通していないので、その分、実施の形態４に比べて、係合凹部４ｅに埋没した部位の体積（［数３］におけるパラメータＶ１）が小さくなっている。これにより、延出部２ｅの体積を実施の形態４に比べて小さくすることができるので、溶着ボス２における加熱溶融される部分の体積を小さくし、加熱溶融に必要な熱エネルギーを低減することができるから、実施の形態４に比べて加熱時間を短縮することができる。   Further, since the engaging recess 4e does not penetrate in the thickness direction of the first member 3, compared with the fourth embodiment, the volume of the portion buried in the engaging recess 4e (in [Expression 3] The parameter V1) is small. Thereby, since the volume of the extension part 2e can be made small compared with Embodiment 4, the volume of the part melt-heated in the welding boss | hub 2 is made small, and the thermal energy required for heat-melting is reduced. Therefore, the heating time can be shortened as compared with the fourth embodiment.

＜変形例＞
（１）前述の実施の形態１では、溶着治具５の溝部５ｅの数が３つの例について説明したが、これに限定されるものではない。例えば、溶着治具５の溝部５ｅの数が３つ以上の方向に延出するものであってもよい。溶着治具５の溝部５ｅが３つ以上の方向に延出していれば、延出部２ｅが３つ以上形成され、延出部２ｅにより第１の部材３を３点以上で固定することができるので、第２の部材１に第１の部材３をより強固に固定することができる。また、延出部２ｅの厚みを厚くし、更に、溶着ボス２の長さを短くすることができれば、第１の部材３に溶着治具５の当接面５ａを必ず当接させる必要はなく、突出部５ｆと他方の部材３の間に薄いかしめ部が形成されても構わない。 <Modification>
(1) In the first embodiment described above, the example in which the number of the groove portions 5e of the welding jig 5 is three has been described, but the present invention is not limited to this. For example, the number of the groove portions 5e of the welding jig 5 may extend in three or more directions. If the groove part 5e of the welding jig 5 extends in three or more directions, three or more extension parts 2e are formed, and the first member 3 can be fixed at three or more points by the extension part 2e. Therefore, the first member 3 can be more firmly fixed to the second member 1. Further, if the thickness of the extending portion 2e can be increased and the length of the welding boss 2 can be shortened, the contact surface 5a of the welding jig 5 need not be brought into contact with the first member 3 without fail. A thin caulking portion may be formed between the protruding portion 5f and the other member 3.

（２）前述の実施の形態２乃至５に係る係合凹部４ｂ，４ｃ，４ｄ，４ｅの形状は、本実施の形態ので説明した形状に限定されない。
また、３つの延出部２ｅのうちの１つまたは２つの延出部２ｅに対応する部位だけに係合凹部４ｂ，４ｃ，４ｄ，４ｅを形成するようにしてもよい。 (2) The shapes of the engagement recesses 4b, 4c, 4d, and 4e according to the above-described second to fifth embodiments are not limited to the shapes described in the present embodiment.
Moreover, you may make it form engagement recessed part 4b, 4c, 4d, 4e only in the site | part corresponding to one or two of the three extended parts 2e.

（３）前述の実施の形態４および５では、第１の部材３における各延出部２ｅに対応する部位に、係合凹部４ｄ，４ｅを１つずつ形成する例について説明したが、これに限定されるものではなく、例えば、１つの延出部２ｅに対応する部位に複数の係合凹部４ｄ，４ｅを形成してもよい。   (3) In the above-described fourth and fifth embodiments, the example in which the engagement recesses 4d and 4e are formed one by one in the portion corresponding to each extension portion 2e in the first member 3 has been described. For example, a plurality of engaging recesses 4d and 4e may be formed in a portion corresponding to one extending portion 2e.

（４）前述の実施の形態１乃至４では、溶着ボスが熱可塑性の合成樹脂により形成されてなる例について説明したが、これに限定されるものではなく、金属以外の熱可塑性の材料であれば他の材料を用いてもよい。   (4) In the first to fourth embodiments described above, the example in which the welding boss is formed of a thermoplastic synthetic resin has been described. However, the present invention is not limited to this, and may be a thermoplastic material other than metal. Other materials may be used.

本発明は、部材同士を溶着リブを用いて連結する連結構造、および、当該連結構造を得るための連結方法に好適である。そして、コスト低減および連結時の加熱時間の短縮が要求される連結構造に有効である。   The present invention is suitable for a connection structure for connecting members using welding ribs, and a connection method for obtaining the connection structure. And it is effective for the connection structure for which cost reduction and shortening of the heating time at the time of a connection are requested | required.

１ 第２の部材
２ 溶着ボス
２ａ 先端面
２ｂ 凹部
２ｃ 外周部
２ｅ、２ｆ 延出部
２ｅ１ 係合突起
３ 第１の部材
３ａ 第１の面
３ｂ 第２の面
４ 貫通孔
４ｂ、４ｃ、４ｄ、４ｅ 係合凹部
５ 溶着治具
５ａ 当接面
５ｂ 凸部
５ｃ 第１の溝部
５ｄ 円錐面
５ｅ 第２の溝部
２１ 基台部
２１ａ 第３の面
２２ 突出部 DESCRIPTION OF SYMBOLS 1 2nd member 2 Welding boss | hub 2a Front end surface 2b Recessed part 2c Outer peripheral part 2e, 2f Extension part 2e1 Engagement protrusion 3 1st member 3a 1st surface 3b 2nd surface 4 Through-hole 4b, 4c, 4d, 4e Engaging concave portion 5 Welding jig 5a Contact surface 5b Protruding portion 5c First groove portion 5d Conical surface 5e Second groove portion 21 Base portion 21a Third surface 22 Protruding portion

Claims (11)

第１の面と当該第１の面とは反対側の第２の面とを有し、前記第１の面から前記第２の面まで貫通する貫通孔が形成されてなる第１の部材と、
前記第１の部材の前記第１の面に対向する第３の面を有し、前記第３の面に設けられ且つ前記貫通孔に挿通された熱可塑性材料からなる突出部および当該突出部の先端部から前記第２の面における前記貫通孔の外側へ前記貫通孔を中心として放射状に延出してなる熱可塑性材料からなる複数の延出部を有する第２の部材とを備え、
前記第３の面と前記延出部とで挟持する形で、前記第１の部材と前記第２の部材とを連結してなる
ことを特徴とする連結構造。 A first member having a first surface and a second surface opposite to the first surface, and having a through-hole penetrating from the first surface to the second surface; ,
A protrusion having a third surface opposite to the first surface of the first member, the protrusion made of a thermoplastic material provided on the third surface and inserted through the through hole, and the protrusion A second member having a plurality of extending portions made of a thermoplastic material extending radially from the front end portion to the outside of the through hole on the second surface around the through hole;
A connection structure characterized in that the first member and the second member are connected in a form sandwiched between the third surface and the extending portion. 前記複数の延出部は、隣接する２つの前記延出部同士のなす角度それぞれが互いに等しくなるように配置されてなる
ことを特徴とする請求項１記載の連結構造。 The connection structure according to claim 1, wherein the plurality of extending portions are arranged so that angles formed by two adjacent extending portions are equal to each other. 前記延出部は、少なくとも３つ設けられてなる
ことを特徴とする請求項１または請求項２記載の連結構造。 The connection structure according to claim 1, wherein at least three of the extending portions are provided. 前記第１の部材は、前記第２の面に前記第２の部材を係合するための１つ以上の係合凹部が形成されてなり、
前記第２の部材は、前記延出部における前記係合凹部に対応する部位に係合突起が形成されてなる
ことを特徴とする請求項１乃至３のいずれか１項に記載の連結構造。 The first member is formed with one or more engaging recesses for engaging the second member on the second surface,
The connection structure according to any one of claims 1 to 3, wherein the second member is formed with an engagement protrusion at a portion of the extension portion corresponding to the engagement recess. 前記係合凹部の外形サイズは、前記延出部の外形サイズよりも小さく形成されてなる
ことを特徴とする請求項４記載の連結構造。 The connection structure according to claim 4, wherein an outer size of the engaging recess is formed smaller than an outer size of the extending portion. 前記係合凹部は、前記貫通孔と連続して形成されてなる
ことを特徴とする請求項４または請求項５に記載の連結構造。 The connection structure according to claim 4 or 5, wherein the engagement recess is formed continuously with the through hole. 前記係合凹部は、前記第１の部材における前記第１の面から第２の面まで貫通する
ことを特徴とする請求項４乃至６のいずれか１項に記載の連結構造。 The connection structure according to claim 4, wherein the engaging recess penetrates from the first surface to the second surface of the first member. 第１の面と当該第１の面とは反対側の第２の面とを有する第１の部材に前記第１の面から前記第２の面まで貫通する形で形成された貫通孔に、前記第１の部材の前記第１の面に当接する第３の面を有する第２の部材の前記第３の面側に設けられた溶着ボスを前記貫通孔に挿通する工程と、前記貫通孔から前記第２の面側に突出する前記溶着ボスの先端部を溶着治具により加熱溶融しながら押圧することにより、前記貫通孔に挿通された突出部および当該突出部の先端部から前記第２の面における前記貫通孔の外側へ延出してなる延出部を形成する工程とを含む連結方法であって、
前記溶着治具は、前記溶着ボスの先端部との当接面の中央部に突設された突出部と、前記当接面の中央部から前記当接面の外周部に向かって放射状に延びた複数の溝部とが設けられてなり、前記溶着ボスの先端部を溶着治具により加熱溶融しながら押圧すると、溶融した前記溶着ボスの先端部が前記突出部により前記溝部に沿って押し出されることにより前記延出部が形成される
ことを特徴とする連結方法。 In a through-hole formed in a form penetrating from the first surface to the second surface in the first member having the first surface and the second surface opposite to the first surface, Inserting a welding boss provided on the third surface side of the second member having a third surface in contact with the first surface of the first member into the through hole; and the through hole The tip of the welding boss that protrudes from the second surface to the second surface is pressed while being heated and melted by a welding jig, so that the second part is inserted into the through hole and the tip of the protrusion. And a step of forming an extending part extending to the outside of the through hole in the surface of
The welding jig protrudes from the center of the contact surface with the tip of the welding boss, and extends radially from the center of the contact surface toward the outer periphery of the contact surface. A plurality of groove portions are provided, and when the tip end portion of the welding boss is pressed while being heated and melted by a welding jig, the tip end portion of the melted welding boss is pushed out along the groove portion by the protruding portion. The extending portion is formed by the connecting method. 前記複数の溝部は、隣接する２つの前記溝部同士のなす角度それぞれが互いに等しくなるように配置されてなる
ことを特徴とする請求項８記載の連結方法。 The connection method according to claim 8, wherein the plurality of groove portions are arranged such that angles formed by two adjacent groove portions are equal to each other. 前記溝部は、少なくとも３つ設けられてなる
ことを特徴とする請求項９に記載の連結方法。 The connection method according to claim 9, wherein at least three groove portions are provided. 前記第１の部材に、前記第２の面に前記第２の部材を係合するための１つ以上の係合凹部を形成する工程と、
前記第２の部材に、前記延出部における前記係合凹部に対応する部位に係合突起を形成する工程とを含む
ことを特徴とする請求項８乃至１０のいずれか１項に記載の連結方法。 Forming one or more engaging recesses on the first member for engaging the second member on the second surface;
11. The connection according to claim 8, further comprising: forming an engagement protrusion on the second member at a portion corresponding to the engagement recess in the extension portion. Method.
JP2011085697A 2011-04-07 2011-04-07 Connecting structure and connecting method Withdrawn JP2012218275A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3805637A1 (en) * 2019-10-07 2021-04-14 Lumileds Holding B.V. Electronic device and method for manufacturing an electronic device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3805637A1 (en) * 2019-10-07 2021-04-14 Lumileds Holding B.V. Electronic device and method for manufacturing an electronic device

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