JPH10156555A - Ultrasonic horn for ultrasonic welding machine and method for attaching bracket using this horn - Google Patents

Ultrasonic horn for ultrasonic welding machine and method for attaching bracket using this horn

Info

Publication number
JPH10156555A
JPH10156555A JP8309465A JP30946596A JPH10156555A JP H10156555 A JPH10156555 A JP H10156555A JP 8309465 A JP8309465 A JP 8309465A JP 30946596 A JP30946596 A JP 30946596A JP H10156555 A JPH10156555 A JP H10156555A
Authority
JP
Japan
Prior art keywords
horn
ultrasonic
bracket
base material
leg frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8309465A
Other languages
Japanese (ja)
Other versions
JP3390119B2 (en
Inventor
Koji Murao
浩二 村尾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Takanichi Co Ltd
Original Assignee
Takanichi Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Takanichi Co Ltd filed Critical Takanichi Co Ltd
Priority to JP30946596A priority Critical patent/JP3390119B2/en
Publication of JPH10156555A publication Critical patent/JPH10156555A/en
Application granted granted Critical
Publication of JP3390119B2 publication Critical patent/JP3390119B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/322—Providing cavities in the joined article to collect the burr
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7437—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc the tool being a perforating tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—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
    • B29C66/40—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
    • 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
    • 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
    • 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
    • B29C66/70—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
    • B29C66/81415—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
    • B29C66/83—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

Abstract

PROBLEM TO BE SOLVED: To provide a ultrasonic horn for a ultrasonic welding machine, a horn capable of obtaining a strong adhesive strength at low cost, and a method of attaching a bracket using this horn. SOLUTION: This ultrasonic horn is so constituted that the tip end of the horn body 12 is formed with a shallow recessed part 14 whose outer circumference is surrounded by a short-legged frame 13, with a horn projection 15 provided projectingly in the center, and with the inner bottom face of the recessed part 14 formed on an annular plane part 16. This ultrasonic horn is used in integrally welding a part, where a base material composed of a synthetic resin material is welded to a bracket, by melting by pressurizing through ultrasonic horn. With a groove for receiving a molten resin formed preliminarily on the welding face of the bracket, the welding is performed while the molten resin is pushed into the groove through the annular plane part without being expanded horizontally by means of the short-legged frame of the ultrasonic horn.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は低コストで強い接着
強度を得ることができる超音波溶接機用の超音波ホーン
およびこれを用いたブラケット部品の取付方法に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic horn for an ultrasonic welding machine capable of obtaining a strong adhesive strength at a low cost, and a method of mounting a bracket part using the same.

【０００２】[0002]

【従来の技術】例えば、自動車用ドアトリム等における
発泡合成樹脂材からなる基材に対し、これと同系の非発
泡合成樹脂よりなるリテーナ取付用ブラケット部品を取
付一体化する方法としては、超音波振動を用いて溶着す
る方法が知られている。このような方法の一つとして
は、ブラケット部品の溶着面に多数の溶着用突起を設け
ておいてこの突起を超音波振動により溶かして基材に取
付一体化する超音波伝達溶着法と称される方法がある
が、発泡合成樹脂材からなる基材は超音波振動を吸収し
てしまう性質があるので突起が十分に溶融せずに未接着
部分が生じてしまうという現象が起き、十分な接着強度
が得られないという問題点があった。また、ブラケット
部品に対しスポット的に超音波ホーンを当ててその接触
面を溶かして基材に取付一体化する超音波スポット溶着
法と称される方法もあるが、溶融樹脂の熱により基材側
の発泡合成樹脂が崩壊してしまい、溶着面に隙間が生じ
て接着強度の低下を招くという問題点があった。一方、
超音波振動を用いずにクリップやリベット等により機械
的に取り付ける方法も知られているが、部品点数が増え
ることにより重量アップや生産コストアップになるとい
う問題点があった。2. Description of the Related Art For example, a method of integrally attaching a retainer mounting bracket part made of a non-foamed synthetic resin of the same type to a base material made of a foamed synthetic resin material in an automobile door trim or the like includes ultrasonic vibration. There is known a method of welding by using a method. One of such methods is called an ultrasonic transmission welding method in which a large number of welding projections are provided on the welding surface of a bracket part, and these projections are melted by ultrasonic vibration and attached to and integrated with a base material. However, since the base made of synthetic resin foam has the property of absorbing ultrasonic vibrations, a phenomenon occurs in which the protrusions do not melt sufficiently and unbonded parts occur, resulting in sufficient adhesion. There was a problem that strength could not be obtained. There is also a method called an ultrasonic spot welding method in which an ultrasonic horn is applied to the bracket part in a spot manner, the contact surface is melted, and attached to and integrated with the base material. However, there is a problem that the foamed synthetic resin collapses, and a gap is formed on the welded surface, thereby lowering the adhesive strength. on the other hand,
There is also known a method of mechanically attaching by using a clip, a rivet, or the like without using ultrasonic vibration. However, there is a problem that an increase in the number of parts increases weight and production cost.

【０００３】[0003]

【発明が解決しようとする課題】本発明が解決しようと
するところは上記のような従来の問題点を解決して、基
材が発泡合成樹脂材からなる場合でもブラケット部品の
溶融させたい部分が的確容易に溶融して基材に対して溶
着面との間に隙間を発生することなく接着されて十分な
接着強度を保証することができ、しかも、取付作業も簡
単で低コストで生産できるようにする超音波溶接機用の
超音波ホーンおよびこれを用いたブラケット部品の取付
方法を提供することにある。The problem to be solved by the present invention is to solve the above-mentioned problems in the prior art, and to solve the problem that the portion of the bracket part to be melted even when the base material is made of a synthetic resin material. It is easily and accurately melted and bonded to the base material without creating a gap between it and the welding surface, so that sufficient bonding strength can be guaranteed, and the mounting work is simple and low-cost production is possible. It is an object of the present invention to provide an ultrasonic horn for an ultrasonic welding machine and a method for mounting bracket parts using the same.

【０００４】[0004]

【課題を解決するための手段】上記の課題を解決するた
めになされた本発明は、ホーン本体の先端に外周が短脚
枠部により囲まれる浅い凹部を形成するとともにその中
央にホーン突起部を突設して、このホーン突起部と短脚
枠部との間に残された前記凹部の内底面を押さえ用の環
状平面部に形成したことを特徴とする超音波溶接機用の
超音波ホーンを第１の発明とし、また、、合成樹脂材か
らなる基材とその表面に添わせた合成樹脂材からなるブ
ラケット部品の溶着しようとする部位を、超音波溶接機
用の超音波ホーンによる加圧でそのホーン突起部が当接
される部分の近辺とこれに対応する基材の一部を超音波
振動により溶融してこの溶融樹脂によりブラケット部品
を基材表面に溶着一体化するようにしたブラケット部品
の取付方法において、前記した超音波溶接機用の超音波
ホーンを用いる一方、前記ブラケット部品の溶着面には
予め溶融樹脂を受け入れる溝部を形成しておき、ホーン
突起部による加圧で溶融した溶融樹脂が短脚枠部により
横方向へ拡がることなく押さえ用の環状平面部によって
溝部内へ押し込まれるようにしながら溶着することを特
徴とするブラケット部品の基材への取付方法を第２の発
明とするものである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a horn body in which a shallow recess whose outer periphery is surrounded by a short leg frame portion is formed, and a horn projection is formed at the center thereof. An ultrasonic horn for an ultrasonic welding machine, characterized in that the inner bottom surface of the concave portion left between the horn projection and the short leg frame portion is formed as an annular flat portion for holding. In addition, a base material made of a synthetic resin material and a portion to be welded of a bracket part made of a synthetic resin material attached to the surface of the base material are welded by an ultrasonic horn for an ultrasonic welding machine. By pressure, the vicinity of the portion where the horn protrusion comes into contact and a part of the base material corresponding thereto are melted by ultrasonic vibration, and the molten resin is used to weld and integrate the bracket part to the base material surface. How to attach bracket parts On the other hand, while using the ultrasonic horn for the ultrasonic welding machine described above, a groove for receiving the molten resin is formed in advance on the welding surface of the bracket part, and the molten resin melted by pressurization by the horn projection is formed on the short leg. A second aspect of the present invention is a method of attaching a bracket component to a base material, wherein the bracket component is welded while being pushed into the groove portion by an annular flat portion for holding without being laterally expanded by a frame portion. .

【０００５】[0005]

【発明の実施の形態】以下に、図面を参照しつつ本発明
の好ましい実施の形態を、自動車用ドアトリムの基材の
表面にリテーナ取付用のブラケット部品を超音波振動に
より溶着一体化する場合について詳細に説明する。１は
発泡ポリプロピレン樹脂などの超音波溶融可能な発泡合
成樹脂材からなる基材、２はこの基材１の表面に重ねて
部分的に超音波溶接しようとする非発泡のポリプロピレ
ン樹脂よりなるリテーナ取付用のブラケット部品であ
る。このブラケット部品２の溶着面には後記する超音波
ホーン１１によって溶着される溶融部３と、この溶融部
３に沿った溝部４が形成され、この溝部４は必要に応じ
て連通する多数の枝溝部を有したものとしている。な
お、前記した基材１は発泡合成樹脂材からなるものとす
る一方、ブラケット部品２は前記基材１と同系ではある
が非発泡の合成樹脂材からなるものとしたが、両者を非
発泡の合成樹脂材からなるものとしたり、両者を発泡合
成樹脂材からなるものとしてもよい。しかしながら、両
者を発泡合成樹脂材からなるものとするときは、ブラケ
ット部品２を基材１より剛性のあるものとするのを普通
とする。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings, in which a bracket part for attaching a retainer is welded and integrated to the surface of a base material of an automobile door trim by ultrasonic vibration. This will be described in detail. 1 is a base made of a foamed synthetic resin material that can be melted by ultrasonic waves such as a foamed polypropylene resin, and 2 is a retainer made of a non-foamed polypropylene resin that is to be superposed on the surface of the base material 1 and to be partially ultrasonically welded. Bracket parts for On the welding surface of the bracket part 2, a fusion part 3 to be welded by an ultrasonic horn 11 described later and a groove 4 along the fusion part 3 are formed. It has a groove. The base member 1 is made of a foamed synthetic resin material, while the bracket part 2 is made of a non-foamed synthetic resin material which is of the same type as the base material 1, but is made of a non-foamed synthetic resin material. It may be made of a synthetic resin material, or both may be made of a foamed synthetic resin material. However, when both are made of a foamed synthetic resin material, it is normal to make the bracket part 2 more rigid than the base material 1.

【０００６】一方、超音波ホーン１１は、ホーン本体１
２の先端に外周が長さが１mm程度の短脚枠部１３により
囲まれる浅い凹部１４を形成するとともに、その中央に
ホーン突起部１５を突設してこのホーン突起部１５と短
脚枠部１３との間に残された前記凹部１４の内底面を押
さえ用の環状平面部１６に形成したものとしている。On the other hand, the ultrasonic horn 11 is
At the tip of 2, a shallow recess 14 whose outer periphery is surrounded by a short leg frame 13 having a length of about 1 mm is formed, and a horn projection 15 is protruded at the center thereof to form a horn projection 15 and a short leg frame. The inner bottom surface of the recess 14 left between the recess 13 is formed in an annular flat portion 16 for holding.

【０００７】また、前記したようなブラケット部品２を
基材１に超音波溶接機による超音波振動を用いて溶着す
るには、図２ａに示すように、基材１の表面にブラケッ
ト部品２を前記溝部４が形成されている面を基材１の表
面に当接させて添装し、ブラケット部品２の溶着面の裏
側から前記溶融部３に超音波ホーン本体１１の先端より
突出するホーン突起部１５を当てて加圧振動させると、
この振動が溶融部３に伝達されて溶融部３の溶融面は徐
々に溶け出し、続いて、この溶融部３の溶融樹脂が図２
ｂに示されるように溝部４内へ分散して流入する。この
とき、溶融樹脂の一部はブラケット部品２の表面に流出
するが、更に加圧が続けられるとブラケット部品２の表
面に流出した溶融樹脂は図２ｃに示すように、凹部１４
の内底面に形成されている押さえ用の環状平面部１６に
よって溝部４内へ強制的に流し込んで溶着面積を増大さ
せることとなる。このとき、凹部１４の外周は短脚枠部
１３により囲まれているため、この短脚枠部１３が溶融
樹脂の外部への流出を的確に防ぐこととなる。また、短
脚枠部１３は前記したように極めて短くしてあるので、
短脚枠部１３により形成される環状凹溝でブラケット部
品２の板厚が大きく変化することはなく、ブラケット部
品２の強度低下が起こることはない。そして、溶融部３
の溶融面と溝部４内を埋めた溶融樹脂とが略同一面とな
ってこの溶融樹脂が接着剤としての機能を発揮すると、
ブラケット部品２は基材１に的確に溶着一体化されるこ
ととなる。In order to weld the bracket part 2 as described above to the base material 1 by using ultrasonic vibration by an ultrasonic welding machine, as shown in FIG. A horn projection that is attached to the surface of the base member 1 by contacting the surface on which the groove 4 is formed, and that projects from the back side of the welding surface of the bracket component 2 to the fusion part 3 from the tip of the ultrasonic horn body 11. When the part 15 is pressed and vibrated,
This vibration is transmitted to the melting part 3 and the melting surface of the melting part 3 gradually melts out.
As shown in FIG. 3B, the gas flows into the groove 4 in a dispersed manner. At this time, a part of the molten resin flows out to the surface of the bracket part 2, but if the pressure is further continued, the molten resin flowing out to the surface of the bracket part 2 is, as shown in FIG.
The forging area is increased by forcibly flowing into the groove 4 by the annular flat portion 16 for holding formed on the inner bottom surface of the groove. At this time, since the outer periphery of the concave portion 14 is surrounded by the short leg frame portion 13, the short leg frame portion 13 properly prevents the molten resin from flowing out. Also, since the short leg frame portion 13 is extremely short as described above,
The thickness of the bracket component 2 does not greatly change due to the annular groove formed by the short leg frame portion 13, and the strength of the bracket component 2 does not decrease. And the melting part 3
When the molten surface and the molten resin filling the inside of the groove portion 4 are substantially the same surface and this molten resin exhibits a function as an adhesive,
The bracket component 2 is precisely welded and integrated with the base material 1.

【０００８】この場合、接着剤としての機能を奏する溶
融樹脂は溝部４を埋めて溶着面積が大きくなっているの
で、単純なスポット的な溶着に比べると両者間の接着強
度は著しく増大することとなり、また、従来のスポット
溶着法においては、溶融樹脂の熱により基材１側の樹脂
が崩壊してしまい、溶着面に隙間が生じるという現象が
あったが、本願発明の方法においては溶融樹脂が溝部４
内へ分散して流入することにより熱エネルギーも分散さ
れ、このため、基材１を発泡合成樹脂よりなるものと
し、ブラケット部品２を非発泡合成樹脂などの前記基材
１より剛性のあるものを使用した場合でも基材１側の樹
脂が部分的に崩壊されることもなく、崩壊にともなう隙
間発生により接着強度が低下するという問題が生じるこ
とがない。In this case, since the molten resin which functions as an adhesive fills the groove 4 and has a large welding area, the bonding strength between the two significantly increases as compared with simple spot welding. Further, in the conventional spot welding method, there was a phenomenon that the resin on the substrate 1 side collapsed due to the heat of the molten resin, and a gap was generated on the welding surface. Groove 4
The thermal energy is also dispersed by flowing into the inside, so that the base material 1 is made of a foamed synthetic resin, and the bracket component 2 is made of a non-foamed synthetic resin or the like that is more rigid than the base material 1. Even when it is used, the resin on the base material 1 side is not partially collapsed, and there is no problem that the adhesive strength is reduced due to the generation of a gap accompanying the collapse.

【０００９】なお、ブラケット部品２の溶着面に設ける
溶融部３と溝部４の形状としては、図５に示されるよう
に円筒状の溶融部３にその周囲を囲った環状の溝部４と
したり、図６に示されるように更に前記環状の溝部４か
ら更に放射状に溝部４ａを延長したり、図７に示される
ように溶融部３の周囲に放射状に延びた溝部４を形成し
たものとするなど設計条件に応じて適宜設計できること
はいうまでもない。The shape of the fusion portion 3 and the groove portion 4 provided on the welding surface of the bracket part 2 may be, as shown in FIG. 5, an annular groove portion 4 surrounding the periphery of the cylindrical fusion portion 3. As shown in FIG. 6, the groove 4a is further extended radially from the annular groove 4, or the groove 4 extending radially around the fusion part 3 is formed as shown in FIG. Needless to say, it can be appropriately designed according to the design conditions.

【００１０】[0010]

【発明の効果】本発明は以上の説明からも明らかなよう
に、ホーン本体の先端に外周が短脚枠部により囲まれる
浅い凹部を形成するとともにその中央にホーン突起部を
突設して、このホーン突起部と短脚枠部との間に残され
た前記凹部の内底面を押さえ用の環状平面部に形成した
超音波ホーンとしたので、合成樹脂材からなる基材とそ
の表面に添わせた合成樹脂材からなるブラケット部品の
溶着しようとする部位を的確に溶融してこの溶融樹脂に
よりブラケット部品を基材表面に溶着一体化することが
できる。また、本発明方法は前記した超音波ホーンを用
いるとともに、ホーン突起部による加圧振動で溶融され
る溶融部に沿って溝部を形成しておくことにより、基材
表面に対しブラケット部品を相互間に隙間を発生するこ
となく十分な接着強度をもって溶着一体化することがで
きるうえに取付作業も簡単で低コストで生産することが
でき、しかも、クリップ等の別部品も必要としないので
重量の軽減化もできるなど種々の利点がある。よって本
発明は従来の問題点を一掃した超音波溶接機用の超音波
ホーンおよびこれを用いたブラケット部品の取付方法と
して、産業の発展に寄与するところは極めて大である。As is apparent from the above description, the present invention forms a shallow recess whose outer periphery is surrounded by a short leg frame portion at the tip of the horn body, and projects a horn projection at the center thereof. The ultrasonic horn was formed by forming the inner bottom surface of the concave portion left between the horn protrusion and the short leg frame portion into an annular flat surface portion for holding, so that a base made of a synthetic resin material and the surface thereof were added. The portion of the synthetic resin material to which the bracket component is to be welded is appropriately melted, and the molten resin allows the bracket component to be welded and integrated with the surface of the base material. In addition, the method of the present invention uses the above-mentioned ultrasonic horn and forms a groove along a melted portion which is melted by pressurized vibration by the horn projection, so that the bracket parts can be interposed between the base material surface. It can be welded and integrated with sufficient adhesive strength without generating gaps, and can be manufactured easily and at low cost. In addition, it does not require separate parts such as clips, so weight is reduced. There are various advantages, for example, it can be used. Therefore, the present invention greatly contributes to the development of industry as an ultrasonic horn for an ultrasonic welding machine and a method for mounting bracket parts using the ultrasonic horn, which have eliminated the conventional problems.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明に係る超音波溶接機用の超音波ホーンの
好ましい実施の形態を示す要部の一部切欠正面図であ
る。FIG. 1 is a partially cutaway front view of a main part showing a preferred embodiment of an ultrasonic horn for an ultrasonic welding machine according to the present invention.

【図２】本発明に係る超音波溶接機用の超音波ホーンを
用いたブラケット部品の取付方法の工程説明図である。FIG. 2 is a process explanatory view of a bracket component mounting method using an ultrasonic horn for an ultrasonic welding machine according to the present invention.

【図３】本発明方法に用いられるブラケット部品の１例
を示す斜視図である。FIG. 3 is a perspective view showing one example of a bracket part used in the method of the present invention.

【図４】本発明方法に用いられるブラケット部品の１例
を示す溶着面側から見た斜視図である。FIG. 4 is a perspective view showing one example of a bracket part used in the method of the present invention, as viewed from a welding surface side.

【図５】本発明におけるブラケット部品の別例を示す溶
着面側から見た斜視図である。FIG. 5 is a perspective view showing another example of the bracket part according to the present invention as viewed from a welding surface side.

【図６】本発明におけるブラケット部品の別例を示す溶
着面側から見た斜視図である。FIG. 6 is a perspective view showing another example of the bracket part according to the present invention as viewed from a welding surface side.

【図７】本発明におけるブラケット部品の別例を示す溶
着面側から見た斜視図である。FIG. 7 is a perspective view showing another example of the bracket part according to the present invention as viewed from a welding surface side.

【符号の説明】[Explanation of symbols]

１ 基材 ２ ブラケット部品 ３ 溶融部 ４ 溝部 11 超音波ホーン 12 ホーン本体 13 短脚枠部 14 浅い凹部 15 ホーン突起部 16 押さえ用の環状平面部 DESCRIPTION OF SYMBOLS 1 Base material 2 Bracket part 3 Fused part 4 Groove part 11 Ultrasonic horn 12 Horn body 13 Short leg frame part 14 Shallow concave part 15 Horn protrusion part 16 Annular flat part for holding

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 ホーン本体(12)の先端に外周が短脚枠部
(13)により囲まれる浅い凹部(14)を形成するとともにそ
の中央にホーン突起部(15)を突設して、このホーン突起
部(15)と短脚枠部(13)との間に残された前記凹部(14)の
内底面を押さえ用の環状平面部(16)に形成したことを特
徴とする超音波溶接機用の超音波ホーン。An outer periphery of a short leg frame portion is provided at a tip of a horn body (12).
A shallow recess (14) surrounded by (13) is formed, and a horn projection (15) is protruded at the center of the recess, so that a horn projection (15) and a short leg frame (13) are left between the horn projection (15) and the short leg frame (13). An ultrasonic horn for an ultrasonic welding machine, characterized in that an inner bottom surface of the formed concave portion (14) is formed in an annular flat portion (16) for holding. 【請求項２】 合成樹脂材からなる基材とその表面に添
わせた合成樹脂材からなるブラケット部品の溶着しよう
とする部位を、超音波溶接機用の超音波ホーンによる加
圧でそのホーン突起部が当接される部分の近辺とこれに
対応する基材の一部を超音波振動により溶融してこの溶
融樹脂によりブラケット部品を基材表面に溶着一体化す
るようにしたブラケット部品の取付方法において、超音
波溶接機用の超音波ホーンとして、ホーン本体の先端に
外周が短脚枠部により囲まれる浅い凹部を形成するとと
もにその中央にホーン突起部を突設してこのホーン突起
部と短脚枠部との間に残された前記凹部の内底面を押さ
え用の環状平面部に形成したものを用いる一方、前記ブ
ラケット部品の溶着面には予め溶融樹脂を受け入れる溝
部を形成しておき、ホーン突起部による加圧で溶融した
溶融樹脂が短脚枠部により横方向へ拡がることなく押さ
え用の環状平面部によって溝部内へ押し込まれるように
しながら溶着することを特徴とするブラケット部品の取
付方法。2. A portion of a base material made of a synthetic resin material and a part to be welded of a bracket part made of a synthetic resin material attached to the surface thereof are pressed by an ultrasonic horn for an ultrasonic welding machine to form a horn projection. A method of mounting a bracket part in which the vicinity of the part where the part is brought into contact and a part of the base material corresponding to the part are melted by ultrasonic vibration and the molten resin is used to fuse and integrate the bracket part to the base material surface. In the ultrasonic horn for an ultrasonic welding machine, a shallow concave portion whose outer periphery is surrounded by a short leg frame portion is formed at the tip of the horn main body, and a horn projection is protruded at the center of the horn to form a short horn projection. While using the inner bottom surface of the concave portion left between the leg frame portion and the annular flat surface portion for holding down, the welding surface of the bracket component is formed with a groove for receiving the molten resin in advance, A mounting method for a bracket part, wherein a molten resin melted by pressurization by a horn protrusion is welded while being pushed into a groove by an annular flat portion for holding without being spread laterally by a short leg frame portion. . 【請求項３】 基材を発泡合成樹脂よりなるものとし、
ブラケット部品を非発泡合成樹脂よりなるものとする請
求項２に記載のブラケット部品の取付方法。3. The base material is made of a foamed synthetic resin,
3. The method of claim 2, wherein the bracket component is made of a non-foamed synthetic resin.
JP30946596A 1996-11-20 1996-11-20 How to attach bracket parts Expired - Fee Related JP3390119B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30946596A JP3390119B2 (en) 1996-11-20 1996-11-20 How to attach bracket parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30946596A JP3390119B2 (en) 1996-11-20 1996-11-20 How to attach bracket parts

Publications (2)

Publication Number Publication Date
JPH10156555A true JPH10156555A (en) 1998-06-16
JP3390119B2 JP3390119B2 (en) 2003-03-24

Family

ID=17993326

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30946596A Expired - Fee Related JP3390119B2 (en) 1996-11-20 1996-11-20 How to attach bracket parts

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Country Link
JP (1) JP3390119B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000263248A (en) * 1999-03-16 2000-09-26 Harness Syst Tech Res Ltd Welding method
JP2006181999A (en) * 2004-12-28 2006-07-13 Nippon Plast Co Ltd Welding structure for positioning of resin component
JP4683917B2 (en) * 2004-12-28 2011-05-18 日本プラスト株式会社 Positioning welding structure of resin parts
JP2008030352A (en) * 2006-07-31 2008-02-14 Aps Japan Co Ltd Assembly of resin molding and column, and manufacturing method and apparatus for the same
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