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JP3249562B2 - Method of welding two synthetic resin members - Google Patents

Method of welding two synthetic resin members

Info

Publication number
JP3249562B2
JP3249562B2 JP35861791A JP35861791A JP3249562B2 JP 3249562 B2 JP3249562 B2 JP 3249562B2 JP 35861791 A JP35861791 A JP 35861791A JP 35861791 A JP35861791 A JP 35861791A JP 3249562 B2 JP3249562 B2 JP 3249562B2
Authority
JP
Japan
Prior art keywords
welding
synthetic resin
welded
curved surface
melting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP35861791A
Other languages
Japanese (ja)
Other versions
JPH05177712A (en
Inventor
秀彦 堀部
幸一 薄井
Original Assignee
株式会社テネックス
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 株式会社テネックス filed Critical 株式会社テネックス
Priority to JP35861791A priority Critical patent/JP3249562B2/en
Publication of JPH05177712A publication Critical patent/JPH05177712A/en
Application granted granted Critical
Publication of JP3249562B2 publication Critical patent/JP3249562B2/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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/547—Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles, e.g. endless tubes
    • 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
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin 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
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • 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
    • B29C66/301—Three-dimensional joints, i.e. the joined area being substantially non-flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/547—Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles, e.g. endless tubes
    • B29C66/5472—Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles, e.g. endless tubes for making elbows or V-shaped pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81422—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being convex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—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
    • 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
    • B29C66/114—Single butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/004—Bent tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/748—Machines or parts thereof not otherwise provided for
    • B29L2031/749—Motors
    • B29L2031/7492—Intake manifold

Landscapes

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

Description

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

【０００１】[0001]

【産業上の利用分野】この発明は、二つの合成樹脂部材
を振動溶着法により溶着する方法に関し、特に溶着面が
立体的に変化する部材の溶着曲面上に設けられ溶融代と
なる凸部の形状の改良に関する。BACKGROUND OF THE INVENTION The present invention relates to two synthetic resin members.
To a method of welding by vibration welding method, in particular welding surface
The present invention relates to an improvement in the shape of a projection provided on a welding curved surface of a three-dimensionally changing member and serving as a melting allowance.

【０００２】[0002]

【従来の技術】合成樹脂部材同士を固着するのに振動溶
着法が多く用いられる。振動溶着は、二つの部材の溶着
すべき対向面の少くとも一方に溶融代として凸部を設
け、両部材を圧着、加振して凸部を振動エネルギーによ
り溶融し流動性を持たせることにより行われる。2. Description of the Related Art A vibration welding method is often used for fixing synthetic resin members to each other. Vibration welding is performed by providing a convex portion as a melting allowance on at least one of the opposing surfaces of the two members to be welded, crimping and vibrating both members, melting the convex portion with vibration energy to have fluidity. Done.

【０００３】従来溶融代として、溶着すべき面からほぼ
一定の高さの凸部を設けていた。そして溶着すべき面が
立体的に変化する曲面の場合は、曲面上の各点に対し垂
直方向、すなわちその点の曲率半径（その延長線を含
む）方向の高さを一定にしていた。Conventionally, as a melting allowance, a projection having a substantially constant height from the surface to be welded has been provided. And the surface to be welded
In the case of a curved surface that changes three-dimensionally, the height in the direction perpendicular to each point on the curved surface, that is, in the direction of the radius of curvature (including the extension line) of the point is kept constant.

【０００４】[0004]

【発明が解決しようとする課題】図３に示すように合成
樹脂部材Ａの曲面Ｓと、これに対向する曲面Ｒを有する
被溶着合成樹脂部材Ｂとを溶着する場合、曲面Ｓから突
出させた凸部Ｍの高さはいずれの位置においても曲面Ｓ
に垂直すなわちその点の曲率半径の方向に均一な立上り
長さＬを設けていた。As shown in FIG. 3, when a curved surface S of a synthetic resin member A and a synthetic resin member B to be welded having a curved surface R opposed thereto are welded, they are projected from the curved surface S. The height of the convex portion M is the curved surface S at any position.
, That is, a uniform rising length L is provided in the direction of the radius of curvature at that point.

【０００５】合成樹脂部材Ａの曲面Ｓと合成樹脂部材Ｂ
の曲面ＲとをＰ方向に加圧圧着して振動溶着（加振方向
はほぼＰ方向に直角である）をする場合、所定の加圧方
向Ｐに対する凸部Ｍの高さは、曲面Ｓが矢印Ｐに対して
傾斜した位置ｍにおいて、高さＨ2＝ｈ1＋ｈ2＞Ｌであ
り、曲面Ｓが矢印Ｐに対し垂直な点ｎにおいてはＨ1＝
ｈ1＝Ｌである。ここに図３の１点鎖線は曲面ＲをＰ方
向に平行移動させた線、ｈ1 は凸部ＭのＰ方向高さの曲
面Ｓと１点鎖線間の部分、ｈ2 は１点鎖線を越える部分
である。The curved surface S of the synthetic resin member A and the synthetic resin member B
When pressure welding is performed on the curved surface R in the P direction to perform vibration welding (the vibration direction is substantially perpendicular to the P direction), the height of the convex portion M with respect to the predetermined pressing direction P is as follows. At the position m inclined with respect to the arrow P, the height H 2 = h 1 + h 2 > L, and at the point n where the curved surface S is perpendicular to the arrow P, H 1 =
h 1 = L. Here the one-dot chain line in FIG. 3 has a curved surface R is translated in direction P line, h 1 part between the curved surface S and the dashed line in the P direction height of the convex portion M, h 2 is a dashed line It is the part that exceeds.

【０００６】従って、前記所定の加圧方向での溶融代高
さが異なり凸部Ｍの溶融量は点ｍにおいて過剰となり又
は点ｎにおいて不足となって、溶融状態が不均一とな
り、あるいは押圧力の分布が不均一となって溶着不良を
生ずる。さらに溶着時に残留応力が生じて固着力の信頼
性が低下する。Therefore , the height of the melting margin in the predetermined pressing direction is different, and the melting amount of the convex portion M becomes excessive at the point m or insufficient at the point n, so that the molten state becomes uneven or the pressing force is reduced. Distribution becomes non-uniform, resulting in poor welding. Furthermore, residual stress is generated at the time of welding, and the reliability of the fixing force is reduced.

【０００７】[0007]

【課題を解決するための手段】本願発明は、互いに対向
する溶着面が曲面をもって立体的に変化する二つの合成
樹脂部材を両溶着面を対向配置させて、所定方向から加
圧しながら振動を加えて溶着する合成樹脂部材の溶着方
法であって、対向する溶着面の少くとも一方面に溶融代
となる凸部を設け、該凸部の溶着面からの溶融時の前記
加圧方向における高さ寸法がほぼ一定となるように設定
したことを特徴とする二つの合成樹脂部材の溶着方法で
ある。 SUMMARY OF THE INVENTION The invention of the present application is directed to opposing one another.
Two Syntheses in Which the Welding Surfaces Change Three-Dimensionally with Curved Surfaces
The resin member is placed with both welding surfaces facing each other, and
How to weld a synthetic resin member that is welded by applying vibration while pressing
Method, where at least one of the opposing welding surfaces
Provide a convex portion, the above-mentioned at the time of melting from the welding surface of the convex portion
Set so that the height dimension in the pressing direction is almost constant
The method of welding two synthetic resin members
is there.

【０００８】[0008]

【作用】溶着されるべき曲面同士を当接させて、所定方
向の押圧力を加えながら振動を加えると、加圧方向に対
する溶融代の高さはほぼ均一であり、溶融代が流動化す
る量はどの位置でもほぼ等しい。従って押圧力の分布も
不均一が生じないから、溶着は均一に行なわれる。[Action] A curved surface to be welded is brought into contact with a predetermined surface.
When vibration is applied while applying a pressing force in the direction, the height of the melting allowance in the pressing direction is substantially uniform, and the amount of fluidization of the melting allowance is substantially equal at any position. Therefore, the distribution of the pressing force does not become non-uniform, so that the welding is performed uniformly.

【０００９】[0009]

【実施例】図１に互いに溶着されるべき二つの合成樹脂
部材例えば合成樹脂製の長方形状の箱体１と蓋体２の一
隅部分を示す。箱体１と蓋体２は曲面をなすそれぞれの
開口端がすなわち両溶着面が突き合わされ、振動溶着に
より固着して密閉容器を形成する部材である。箱体１の
開口端にリブ３を有するフランジ４を設け、蓋体２の開
口端にフランジ５を設ける。振動溶着は箱体１の深さ方
向Ｐに蓋体２を圧着し方向Ｐに直角な向きの振動を加え
て発熱させ、リブ３を溶着代となる凸部として溶融さ
せ、フランジ４、５の対向面６、７を溶着する。FIG. 1 shows two synthetic resins to be welded together.
One corner portion of a rectangular box 1 made of a member such as a synthetic resin and a lid 2 is shown. The box body 1 and the lid body 2 are members that have curved open ends, that is, both welding surfaces abut, and are fixed by vibration welding to form a closed container. A flange 4 having a rib 3 is provided at an open end of the box 1, and a flange 5 is provided at an open end of the lid 2. Vibration welding is performed by pressing the lid 2 in the depth direction P of the box 1 and applying vibration in a direction perpendicular to the direction P to generate heat. The facing surfaces 6 and 7 are welded.

【００１０】この場合リブ３は、溶融時の所定加圧方向
Ｐにおけるフランジ４の対向面６から立上る高さＨをど
の位置でも等しくするよう設けてある。従って対向面６
からの垂直方向の高さすなわちその点の曲率半径方向の
長さＬは、方向Ｐに対し傾斜した点ｍにおける長さＬ2
が方向Ｐに直角な点ｎにおける長さＬ1より小さい。リ
ブ３の形状は図３における１点鎖線に相当する。In this case, the ribs 3 are provided so that the height H rising from the facing surface 6 of the flange 4 in the predetermined pressing direction P during melting is equal at any position. Therefore, facing surface 6
, Ie, the length L of the point in the radius of curvature direction is the length L 2 at the point m inclined with respect to the direction P.
Is smaller than the length L 1 at a point n perpendicular to the direction P. The shape of the rib 3 corresponds to the one-dot chain line in FIG.

【００１１】図２に示す他の実施例は軸方向に分割した
合成樹脂製曲管部材１１、１２を溶着して曲管を形成し
ようとするものである。断面半円状の曲管部材１１、１
２はそれぞれの両側にフランジ１４、１４及び１５、１
５を設けてある。一方のフランジ１４、１４の対向面１
６、１６にリブ１３、１３を設ける。対向面１６、１６
とフランジ１５の対向面１７、１７とは所定の加圧方向
Ｐの方向に圧着し、振動を加えて溶着する曲面である。
リブ１３、１３は溶着代となる凸部である。Another embodiment shown in FIG. 2 is to form a curved pipe by welding curved pipe members 11 and 12 made of synthetic resin divided in the axial direction. Curved tube member 11, 1 having a semicircular cross section
2 have flanges 14, 14 and 15, 1 on each side
5 is provided. Opposite surface 1 of one of flanges 14, 14
6 and 16 are provided with ribs 13 and 13. Opposing surfaces 16, 16
And the facing surfaces 17 and 17 of the flange 15 are curved surfaces which are press-bonded in a predetermined pressing direction P and welded by applying vibration.
The ribs 13 are projections serving as welding margins.

【００１２】リブ１３はどの点においても所定の加圧方
向Ｐにおいて等しい高さＨを有する。従って方向Ｐに対
して傾斜が急な位置ａにおける対向面１６からの垂直立
上り高さＬ4 は、傾斜が緩やかな位置ｂにおける対向面
１６からの垂直立上り高さＬ3より小である。[0012] ribs 13 has a Oite equal height H to a predetermined pressure side <br/> direction P at any point. Thus vertical rising height L 4 from the opposing surface 16 inclined relative to the direction P is at a steep position a is smaller than the vertical rising height L 3 from the opposite surface 16 in the inclined gentle position b.

【００１３】加圧方向Ｐを決定するには、加圧方向Ｐ
と、曲面上各点における曲面への垂直線との角度の差が
曲面全般にわたり極力少く（すなわち各点のＬの変化を
少く）、また角度の大なる部分（すなわち（Ｈ−Ｌ）が
大なる部分）が極力少なくなるように選択するものと
し、少くとも９０度以上の部分を含まないようにする。To determine the pressing direction P, the pressing direction P
And the angle difference between each point on the curved surface and the vertical line to the curved surface is as small as possible over the entire curved surface (that is, the change in L at each point is small), and the portion where the angle is large (that is, (HL) is large). ) Is selected so as to be as small as possible, and at least a portion of 90 ° or more is not included.

【００１４】上記の例によれば振動によりリブが発熱
し、所定方向Ｐの方向に押圧されると、リブの溶融代が
どの位置でも等しくなっているので、均一な溶着状態が
得られる。According to the above example, when the rib generates heat due to vibration and is pressed in the predetermined direction P , a uniform welding state can be obtained because the ribs have the same melting allowance at any position.

【００１５】[0015]

【発明の効果】この発明では、溶着面が曲面をもって立
体的に変化する二つの合成樹脂部材を、所定方向から加
圧しながら振動を加えて溶着する合成樹脂部材の溶着方
法において、対向する溶着面の少くとも一方面に溶融代
となる凸部を設け、該凸部の溶着面からの溶融時の前記
加圧方向における高さ寸法がほぼ一定となるようにした
ので、溶融代の溶融量が各部均一となって、溶着状態が
均等になり、従って固着の信頼性が向上する。そして、
バリのはみ出しがなく、外見上の仕上りも綺麗である。According to the present invention, the welding surface has a curved surface.
Add two physically changing synthetic resin members from a predetermined direction.
How to weld synthetic resin members that are welded by applying vibration while pressing
Method, at least one of the opposing welding surfaces
Provide a convex portion, the above-mentioned at the time of melting from the welding surface of the convex portion
The height dimension in the pressing direction is made almost constant
Since, the amount of melting of the melting cost becomes a respective units uniform, welded state becomes uniform, thus the reliability of the anchoring is improved. And
The burr does not protrude and the appearance is beautiful.

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

【図１】この発明の合成樹脂部材の例を示す図FIG. 1 is a view showing an example of a synthetic resin member of the present invention.

【図２】この発明の合成樹脂部材の他の例を示す図FIG. 2 is a view showing another example of the synthetic resin member of the present invention.

【図３】この発明を模式的に示す断面図FIG. 3 is a sectional view schematically showing the present invention.

【符号の説明】[Explanation of symbols]

３、１３ リブ（凸部） ４、５、１４、１５ フランジ ６、７、１６、１７ 対向面（曲面） Ｐ 加圧方向 3, 13 rib (convex portion) 4, 5, 14, 15 flange 6, 7, 16, 17 opposing surface (curved surface) P pressure direction

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 互いに対向する溶着面が曲面をもって立
体的に変化する二つの合成樹脂部材を両溶着面を対向配
置させて、所定方向から加圧しながら振動を加えて溶着
する合成樹脂部材の溶着方法であって、対向する溶着面
の少くとも一方面に溶融代となる凸部を設け、該凸部の
溶着面からの溶融時の前記加圧方向における高さ寸法が
ほぼ一定となるように設定したことを特徴とする二つの
合成樹脂部材の溶着方法。The welding surfaces facing each other stand up with curved surfaces.
Two welded surfaces of two synthetic resin members that change physically are arranged facing each other.
By location, a welding method of the synthetic resin member are welded by applying vibration while applying pressure from a predetermined direction, provided at least convex portion to be melted allowance on one side of the welding surface <br/> opposed, the Convex
A method for welding two synthetic resin members, wherein a height dimension in the pressing direction at the time of melting from a welding surface is set to be substantially constant.
JP35861791A 1991-12-27 1991-12-27 Method of welding two synthetic resin members Expired - Fee Related JP3249562B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP35861791A JP3249562B2 (en) 1991-12-27 1991-12-27 Method of welding two synthetic resin members

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35861791A JP3249562B2 (en) 1991-12-27 1991-12-27 Method of welding two synthetic resin members

Publications (2)

Publication Number Publication Date
JPH05177712A JPH05177712A (en) 1993-07-20
JP3249562B2 true JP3249562B2 (en) 2002-01-21

Family

ID=18460246

Family Applications (1)

Application Number Title Priority Date Filing Date
JP35861791A Expired - Fee Related JP3249562B2 (en) 1991-12-27 1991-12-27 Method of welding two synthetic resin members

Country Status (1)

Country Link
JP (1) JP3249562B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002070672A (en) 2000-08-31 2002-03-08 Keihin Corp Vehicle intake manifold and method of manufacturing the same
JP4256320B2 (en) * 2004-09-28 2009-04-22 ダイキョーニシカワ株式会社 Bonding structure and bonding method of resin molded body
JP4606154B2 (en) * 2004-12-27 2011-01-05 株式会社Ｆｔｓ Automotive fuel tank
JP2007230110A (en) * 2006-03-02 2007-09-13 Mikuni Corp Synthetic resin air pipe
JP5053905B2 (en) * 2008-03-31 2012-10-24 日本プラスト株式会社 Automotive interior panels
JP5386454B2 (en) * 2010-08-24 2014-01-15 日立アプライアンス株式会社 refrigerator
JP5922939B2 (en) * 2012-01-31 2016-05-24 富士重工業株式会社 Resin intake manifold
DE102016208117A1 (en) * 2016-05-11 2017-11-16 Contitech Mgw Gmbh Method for producing a charge air tube
JP7069791B2 (en) * 2018-02-14 2022-05-18 トヨタ紡織株式会社 Welding rib structure
JP7139186B2 (en) * 2018-08-08 2022-09-20 Ｋｙｂ株式会社 Electronic device, manufacturing method and casing for electronic device
JP7235196B2 (en) * 2018-10-31 2023-03-08 Toto株式会社 Hot water storage tank, hot water storage type heat exchanger, and sanitary washing device

Also Published As

Publication number Publication date
JPH05177712A (en) 1993-07-20

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