JP2010082813A - Welding member - Google Patents

Welding member Download PDF

Info

Publication number
JP2010082813A
JP2010082813A JP2008251040A JP2008251040A JP2010082813A JP 2010082813 A JP2010082813 A JP 2010082813A JP 2008251040 A JP2008251040 A JP 2008251040A JP 2008251040 A JP2008251040 A JP 2008251040A JP 2010082813 A JP2010082813 A JP 2010082813A
Authority
JP
Japan
Prior art keywords
welding
welding member
joining
planned
vibration
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
JP2008251040A
Other languages
Japanese (ja)
Other versions
JP5035200B2 (en
Inventor
Nobuhiro Terai
伸弘 寺井
Takahiko Sato
貴彦 佐藤
Takeshi Ono
武史 小野
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.)
Toyoda Gosei Co Ltd
Original Assignee
Toyoda Gosei 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 Toyoda Gosei Co Ltd filed Critical Toyoda Gosei Co Ltd
Priority to JP2008251040A priority Critical patent/JP5035200B2/en
Publication of JP2010082813A publication Critical patent/JP2010082813A/en
Application granted granted Critical
Publication of JP5035200B2 publication Critical patent/JP5035200B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—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
    • B29C66/11—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
    • B29C66/112—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
    • B29C66/10—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
    • 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
    • B29C66/302—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
    • B29C66/30221—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 point-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3038—Air bag covers

Landscapes

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a welding member restraining a mating member from being degraded in design even if vibration-welded to the thin-walled mating member. <P>SOLUTION: The tip part of a joint predetermined part 31 of a welding protrusion 3 of the welding member 1 is set to a diameter of 8 mm or less. The welding protrusions 3 are dotted in island shape on a joint surface 25 of the welding member 1. The tip part diameter of the joint predetermined part 31 is made small to reduce a quantity of heat per unit area applied to the welding member 1 and mating member 8 in vibration welding to thereby restrain the mating member 8 from being degraded in design. Further, the tip part of the joint predetermined part 31 is set to the diameter of 8 mm or less, and the welding protrusions 3 are dotted in island shape on the joint surface 25 to attain vibration welding of the welding member 1 to the mating member 8 with high strength. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、樹脂製の溶着部材に関する。本発明の溶着部材は、例えば、車両用エアバッグ装置の一部を構成し、樹脂製のインストルメントパネルに振動溶着される樹脂製のエアバッグドアとして使用できる。   The present invention relates to a resin welding member. The welding member of the present invention constitutes, for example, a part of a vehicle airbag device, and can be used as a resin airbag door that is vibration welded to a resin instrument panel.

樹脂製の相手材に振動溶着される樹脂製の溶着部材としては、例えば、エアバッグ装置のエアバッグドアが知られている。車両に搭載されるエアバッグ装置は、一般に、エアバッグユニットと、エアバッグユニットを収容するエアバッグドアとを持つ。エアバッグドアは、樹脂製であり、筒状をなすリテーナ部と、リテーナ部に一体化されインストルメントパネルの後面に対面するドア部とを持つ。エアバッグユニットはドア部の後面側（すなわちリテーナ部）に収容される。ドア部は略板状をなし、樹脂製のインストルメントパネルの後面に振動溶着される。また、ドア部は、通常時にはリテーナ部を閉じ、エアバッグ展開時にはリテーナ部を開く方向に揺動または変形する。   For example, an airbag door of an airbag device is known as a resin welding member that is vibration welded to a resin counterpart. An airbag device mounted on a vehicle generally has an airbag unit and an airbag door that houses the airbag unit. The airbag door is made of resin and has a cylindrical retainer portion and a door portion that is integrated with the retainer portion and faces the rear surface of the instrument panel. The airbag unit is accommodated on the rear surface side of the door portion (that is, the retainer portion). The door portion has a substantially plate shape, and is vibration welded to the rear surface of the resin instrument panel. Further, the door portion normally swings or deforms in a direction in which the retainer portion is closed and when the airbag is deployed, the retainer portion is opened.

エアバッグドアは、振動溶着のためのリブ（溶着リブ）を持つ（例えば、特許文献１〜２参照）。溶着リブが相手材であるインストルメントパネルに振動溶着されることで、エアバッグドアはインストルメントパネルに固着される。   The airbag door has a rib (welding rib) for vibration welding (see, for example, Patent Documents 1 and 2). The airbag door is fixed to the instrument panel by welding the welding rib to the instrument panel which is the counterpart material.

エアバッグが展開すると、エアバッグドアには大きな衝撃が加わる。このため、エアバッグドア用の樹脂材料は、例えばＴＰＯ等のエアバッグ展開時にも破損し難い材料が用いられている。一方、インストルメントパネル用の樹脂材料としては、例えばＰＰ等の軽量かつ高強度の材料が用いられている。このため、インストルメントパネル用の樹脂材料とエアバッグドア用の樹脂材料とは、線膨張係数が異なる場合が多い。よって、振動溶着された溶着リブおよびインストルメントパネルが熱収縮する際に、インストルメントパネルの表面に凹凸形状が生じる場合がある。この振動溶着の際に生じる凹凸形状は、インストルメントパネルの板厚が小さくなる程（インストルメントパネルが薄肉になる程）大きくなる。   When the airbag is deployed, a large impact is applied to the airbag door. For this reason, as the resin material for the airbag door, for example, a material such as TPO that is not easily damaged when the airbag is deployed is used. On the other hand, as a resin material for an instrument panel, a light and high-strength material such as PP is used. For this reason, the resin material for instrument panels and the resin material for airbag doors often have different linear expansion coefficients. Therefore, when the welding rib and the instrument panel that are vibration welded are thermally contracted, an uneven shape may occur on the surface of the instrument panel. The concavo-convex shape generated during the vibration welding becomes larger as the instrument panel becomes thinner (as the instrument panel becomes thinner).

ところで、近年、車両軽量化のために、種々の内装品を軽量化することが要求されている。インストルメントパネルを軽量化するためには、薄肉化が有効であると考えられるが、この場合には、上述したように振動溶着の際に生じる凹凸形状が大きくなり、インストルメントパネルの意匠性が悪化する。例えばインストルメントパネルの板厚を２．０ｍｍ程度にすると、インストルメントパネルの意匠性が著しく悪化する問題があった。
特開２００１−２９４１１４号公報 特開２００４−３３８０９２号公報 By the way, in recent years, various interior parts are required to be lightened in order to reduce vehicle weight. In order to reduce the weight of the instrument panel, it is considered that thinning is effective, but in this case, the uneven shape generated during vibration welding increases as described above, and the design of the instrument panel is increased. Getting worse. For example, when the thickness of the instrument panel is about 2.0 mm, there is a problem that the design of the instrument panel is remarkably deteriorated.
JP 2001-294114 A JP 2004-338092 A

本発明は上記事情に鑑みてなされたものであり、薄肉の相手材に振動溶着しても、相手材の意匠性悪化を抑制できる溶着部材を提供することを目的とする。   The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a welding member that can suppress deterioration in the design of the counterpart material even when vibration welded to a thin counterpart material.

上記課題を解決する本発明の溶着部材は、樹脂製の相手材８に振動溶着される樹脂製の溶着部材１であって、
該相手材８の後面に対面する接合面２５を持つ本体部２と、
該接合面２５に形成され、突起状をなし、島状に点在する複数の溶着突部３と、を持ち、
該溶着突部３は、振動溶着時に溶融する溶融予定部３０と、該振動溶着時に残存して該相手材８の該後面に接合する接合予定部３１と、を持ち、
該接合予定部３１の先端部は、直径８ｍｍ以下であることを特徴とする。 The welding member of the present invention that solves the above problem is a resin welding member 1 that is vibration welded to a resin counterpart material 8,
A main body 2 having a joining surface 25 facing the rear surface of the mating member 8;
A plurality of welding projections 3 formed on the joint surface 25, forming a protrusion, and scattered in an island shape;
The welding projection 3 includes a melting planned portion 30 that melts at the time of vibration welding, and a bonding planned portion 31 that remains at the time of the vibration welding and is bonded to the rear surface of the counterpart material 8.
The tip end portion of the planned joining portion 31 has a diameter of 8 mm or less.

本発明の溶着部材は、下記の（１）〜（４）の何れかを備えるのが好ましく、（１）〜（４）の複数を備えるのがより好ましい。   The welding member of the present invention preferably includes any of the following (1) to (4), and more preferably includes a plurality of (1) to (4).

（１）前記接合予定部３１の先端部は、直径２ｍｍ以下である。   (1) The front end portion of the planned joining portion 31 has a diameter of 2 mm or less.

（２）前記接合予定部３１の先端部は、五角形以上の断面多角形状をなす。   (2) The front end portion of the planned joining portion 31 has a polygonal cross section of a pentagon or more.

（３）前記接合予定部３１の先端部は、断面円形状をなす。   (3) The tip end portion of the planned joining portion 31 has a circular cross section.

（４）前記相手材８の板厚は２．０ｍｍ以下である。   (4) The plate thickness of the counterpart material 8 is 2.0 mm or less.

本発明の溶着部材は溶着突部を持つ。溶着突部は、振動溶着時に溶融する溶融予定部と、振動溶着時に残存する接合予定部とを持つ。接合予定部は、相手材の後面に接合する部分である。本発明の溶着部材では、接合予定部の先端部の直径を８ｍｍ以下と小さくすることで、相手材の意匠性悪化を抑制できる。すなわち、接合予定部の先端部の直径（以下、接合径と呼ぶ）を小さくすることで、溶着部材と相手材との単位面積あたりの接合面積（溶着面積）を小さくできる。このため、溶着部材および相手材に加わる単位面積あたりの熱量を小さくでき、単位面積あたりの溶着部材の収縮量と相手材の収縮量との差を小さくできる。このため、熱収縮による相手材表面の凹凸形状を抑制できる。よって、本発明の溶着部材は、薄肉の相手材に振動溶着しても、相手材の意匠性悪化を抑制できる。   The welding member of the present invention has a welding projection. The welding projection has a planned melting portion that melts at the time of vibration welding and a planned bonding portion that remains at the time of vibration welding. The joining portion is a portion to be joined to the rear surface of the counterpart material. In the welding member of the present invention, the design quality of the mating material can be prevented from deteriorating by reducing the diameter of the tip of the joining portion to 8 mm or less. That is, by reducing the diameter of the tip portion of the planned joining portion (hereinafter referred to as the joining diameter), the joining area (welding area) per unit area between the welding member and the counterpart material can be reduced. For this reason, the amount of heat per unit area applied to the welding member and the counterpart material can be reduced, and the difference between the shrinkage amount of the welding member per unit area and the contraction amount of the counterpart material can be reduced. For this reason, the uneven | corrugated shape of the other party material surface by heat contraction can be suppressed. Therefore, even if the welding member of the present invention is vibration welded to a thin-walled counterpart material, it is possible to suppress deterioration of the design properties of the counterpart material.

また、本発明の溶着部材における溶着突部は、リブ状をなすのではなく、接合面に島状に点在している。したがって、本発明の溶着部材と相手材との接合部分は、島状に点在する。このため、本発明の溶着部材によると、溶着部材と相手材とに剥がれ方向の力が作用した場合、この力を広範囲に分散できる。さらに、溶着部材と相手材との接合部分が島状に点在することで、溶着部材と相手材との接合強度の偏りが小さくなる。本発明の溶着部材は、これらの協働によって、相手材に強度高く振動溶着できる。   Moreover, the welding protrusions in the welding member of the present invention do not form a rib shape, but are scattered in an island shape on the joint surface. Therefore, the joining part of the welding member of the present invention and the counterpart material is scattered in an island shape. For this reason, according to the welding member of this invention, when the force of a peeling direction acts on a welding member and the other party material, this force can be disperse | distributed widely. Furthermore, since the joint portions between the welding member and the counterpart material are scattered in an island shape, a deviation in the bonding strength between the weld member and the counterpart material is reduced. The welding member of the present invention can be vibrated and welded to the mating member with high strength by these cooperation.

上記（１）を備える本発明の溶着部材によると、接合径をさらに小さくすることで、相手材の意匠性悪化をさらに抑制できる。   According to the welding member of the present invention having the above (1), it is possible to further suppress the deterioration of the design of the counterpart material by further reducing the joint diameter.

上記（２）または（３）を備える本発明の溶着部材によると、接合径を小さくしつつ接合予定部の先端部の面積を大きくできる。また、溶着部材と相手材との接合強度の偏りをさらに小さくできる。このため、上記（２）または（３）を備える本発明の溶着部材は、相手材にさらに強度高く振動溶着できる。   According to the welding member of the present invention having the above (2) or (3), the area of the tip portion of the planned joining portion can be increased while reducing the joining diameter. In addition, the deviation in bonding strength between the welding member and the mating member can be further reduced. For this reason, the welding member of the present invention having the above (2) or (3) can be vibration welded to the mating material with higher strength.

以下、図面を基に、本発明の溶着部材を説明する。   Hereinafter, the welding member of the present invention will be described with reference to the drawings.

（実施例１）
実施例１の溶着部材は、車両用のエアバッグドアであり、相手材であるインパネに振動溶着される。実施例１の溶着部材を模式的に表す斜視図を図１に示す。実施例１の溶着部材の要部拡大斜視図を図２に示す。実施例１の溶着部材を相手材側から見た様子を模式的に表す要部拡大説明図を図３に示す。実施例１の溶着部材を側方から見た様子を模式的に表す要部拡大説明図を図４に示す。以下、実施例において上、下、左、右、前、後とは図１に示す上、下、左、右、前、後を指す。溶着突部の高さとは、前後方向の長さを指す。 Example 1
The welding member of Example 1 is an airbag door for vehicles, and is vibration welded to the instrument panel which is a counterpart material. A perspective view schematically showing the welding member of Example 1 is shown in FIG. The principal part expansion perspective view of the welding member of Example 1 is shown in FIG. The principal part expansion explanatory drawing which represents typically a mode that the welding member of Example 1 was seen from the other party member side is shown in FIG. FIG. 4 shows an enlarged explanatory view of a main part schematically showing the welding member of Example 1 as viewed from the side. Hereinafter, the upper, lower, left, right, front, and rear in the examples refer to the upper, lower, left, right, front, and rear shown in FIG. The height of the welding protrusion refers to the length in the front-rear direction.

図１に示すように、実施例１の溶着部材１は、本体部２と、複数の溶着突部３とを持つ。実施例１の溶着部材１はＴＰＯを材料としてなる。   As shown in FIG. 1, the welding member 1 of the first embodiment has a main body portion 2 and a plurality of welding protrusions 3. The welding member 1 of Example 1 is made of TPO.

本体部２は、リテーナ部２０と、２つのドア部２１とを持つ。リテーナ部２０およびドア部２１は一体成形されてなる。リテーナ部２０は、リテーナ本体部２２と、フランジ部２３とからなる。リテーナ本体部２２は前後方向に延びる略角筒状をなす。フランジ部２３は略額縁状をなし、リテーナ本体部２２の前端部に一体化されている。リテーナ部２０は、全体として略筒状をなす。フランジ部２３には図略のエアバッグユニットが収容される。   The main body 2 has a retainer 20 and two doors 21. The retainer part 20 and the door part 21 are integrally formed. The retainer portion 20 includes a retainer main body portion 22 and a flange portion 23. The retainer body 22 has a substantially rectangular tube shape extending in the front-rear direction. The flange portion 23 has a substantially frame shape and is integrated with the front end portion of the retainer main body portion 22. The retainer portion 20 has a substantially cylindrical shape as a whole. An unillustrated airbag unit is accommodated in the flange portion 23.

各ドア部２１は、略板状をなす。一方のドア部２１ａは、フランジ部２３の上側内周面に一体化されている。他方のドア部２１はフランジ部２３の下側内周面に一体化されている。ドア部２１のなかでフランジ部２３との境界部分は蝶番状をなす。このため、各ドア部２１はリテーナ部２０に対して揺動可能である。   Each door portion 21 has a substantially plate shape. One door portion 21 a is integrated with the upper inner peripheral surface of the flange portion 23. The other door portion 21 is integrated with the lower inner peripheral surface of the flange portion 23. A boundary portion with the flange portion 23 in the door portion 21 has a hinge shape. Therefore, each door portion 21 can swing with respect to the retainer portion 20.

実施例１の溶着部材１は、相手材８の後面側に配置される。フランジ部２３の前面および各ドア部２１の前面は、相手材８の後面に対面する。したがって、実施例１の溶着部材１におけるドア部２１の前面およびフランジ部２３の前面は、本発明の溶着部材１における接合面２５に相当する。   The welding member 1 according to the first embodiment is disposed on the rear surface side of the counterpart material 8. The front surface of the flange portion 23 and the front surface of each door portion 21 face the rear surface of the counterpart material 8. Therefore, the front surface of the door part 21 and the front surface of the flange part 23 in the welding member 1 of Example 1 correspond to the joint surface 25 in the welding member 1 of the present invention.

フランジ部２３および各ドア部２１の前面（接合面２５）には、それぞれ、複数の溶着突部３が形成されている。図２に示すように、各溶着突部３は、曲面を前方に向けた略半球状をなす。   A plurality of welding protrusions 3 are formed on the front surface (joint surface 25) of the flange portion 23 and each door portion 21, respectively. As shown in FIG. 2, each welding projection 3 has a substantially hemispherical shape with a curved surface facing forward.

図４に示すように、各溶着突部３は、溶融予定部３０と、接合予定部３１とを持つ。溶融予定部３０は、溶着突部３の前端部からなる。接合予定部３１は、溶着突部３の後端部（接合面２５側の端部）からなる。溶融予定部３０は、振動溶着時に溶融する部分である。また、接合予定部３１は振動溶着時に残存する部分であり、相手材８の後面に接合する部分である。実施例１の溶着部材１における溶着突部３は、振動溶着時に、高さ方向（図１中前後方向）に０．４ｍｍ溶融するように設計されている。したがって、実施例１の溶着部材１における溶融予定部３０は、溶着突部３の前端部から０．４ｍｍの部分である。接合予定部３１は溶着突部３の他の部分である。   As shown in FIG. 4, each welding projection 3 has a planned melting portion 30 and a planned bonding portion 31. The planned melting portion 30 is composed of a front end portion of the welding projection 3. The planned joining portion 31 includes a rear end portion (end portion on the joining surface 25 side) of the welding projection 3. The planned melting portion 30 is a portion that melts during vibration welding. Further, the planned joining portion 31 is a portion that remains at the time of vibration welding and is a portion that is joined to the rear surface of the counterpart material 8. The welding protrusion 3 in the welding member 1 of Example 1 is designed to melt 0.4 mm in the height direction (front-rear direction in FIG. 1) during vibration welding. Therefore, the fusion target portion 30 in the welding member 1 of the first embodiment is a portion of 0.4 mm from the front end portion of the welding projection 3. The joint portion 31 is another portion of the welding projection 3.

実施例１の溶着部材において、左右方向に隣接する溶着突部３の接合予定部３１の先端部同士の距離（ピッチ）Ｗ１は２．４ｍｍである。上下方向に隣接する溶着突部３の接合予定部３１の先端部同士の距離（ピッチ）Ｗ２は２．４ｍｍである（図３）。接合径φ１（接合予定部３１の先端部の直径）は約２ｍｍである。接合予定部３１の後端部（接合面２５側の端部）の直径φ２は２．８ｍｍである。接合予定部３１の高さＨ１は１．２ｍｍである。溶融予定部３０の高さＨ２は０．４ｍｍである（図４）。   In the welding member of Example 1, the distance (pitch) W1 between the tips of the planned joining portions 31 of the welding projections 3 adjacent in the left-right direction is 2.4 mm. The distance (pitch) W2 between the end portions of the joining planned portions 31 of the welding projections 3 adjacent in the vertical direction is 2.4 mm (FIG. 3). The joining diameter φ1 (the diameter at the tip of the joining planned portion 31) is about 2 mm. The diameter φ2 of the rear end portion (end portion on the bonding surface 25 side) of the planned joining portion 31 is 2.8 mm. The height H1 of the joining scheduled portion 31 is 1.2 mm. The height H2 of the melted portion 30 is 0.4 mm (FIG. 4).

（実施例２）
実施例２の溶着部材は、溶着突部３の形状以外は実施例１の溶着部材と同じものである。実施例２の溶着部材を相手材側から見た様子を模式的に表す要部拡大説明図を図５に示す。 (Example 2)
The welding member of Example 2 is the same as the welding member of Example 1 except for the shape of the welding protrusion 3. FIG. 5 shows an enlarged explanatory view of a main part schematically showing a state in which the welding member of Example 2 is viewed from the counterpart material side.

実施例２の溶着部材１における溶着突部３は、断面略正方形の角柱状をなす。   The welding protrusion 3 in the welding member 1 of Example 2 has a prismatic shape with a substantially square cross section.

実施例２の溶着部材１において、左右方向に隣接する溶着突部３のピッチＷ１は約８．３ｍｍである。上下方向に隣接する溶着突部３のピッチＷ２は７．６ｍｍである。接合径φ１は約７．１ｍｍである。接合予定部３１の先端部の左右方向の長さＬは５ｍｍである。接合予定部３１の先端部の上下方向の長さＷ３は５ｍｍである。接合予定部３１の高さＨ１（図略）は２ｍｍである。溶融予定部３０の高さＨ２（図略）は０．４５ｍｍである。なお、実施例２の溶着部材１において、接合径φ１とは、接合予定部３１の先端部の最大直径を指す。以下、比較例１〜２に関しても同様である。   In the welding member 1 of Example 2, the pitch W1 of the welding protrusions 3 adjacent in the left-right direction is about 8.3 mm. The pitch W2 between the welding protrusions 3 adjacent in the vertical direction is 7.6 mm. The joint diameter φ1 is about 7.1 mm. The length L in the left-right direction of the distal end portion of the bonding scheduled portion 31 is 5 mm. The length W3 in the vertical direction of the tip end portion of the joining portion 31 is 5 mm. The height H1 (not shown) of the planned joining portion 31 is 2 mm. The height H2 (not shown) of the melted portion 30 is 0.45 mm. In addition, in the welding member 1 of Example 2, the bonding diameter φ1 indicates the maximum diameter of the tip portion of the planned bonding portion 31. The same applies to Comparative Examples 1 and 2 below.

（比較例１）
比較例１の溶着部材は、溶着突部の形状以外は実施例１の溶着部材と同じものである。比較例１の溶着部材を相手材側から見た様子を模式的に表す要部拡大説明図を図６に示す。 (Comparative Example 1)
The welding member of Comparative Example 1 is the same as the welding member of Example 1 except for the shape of the welding protrusion. FIG. 6 shows an enlarged explanatory view of a main part schematically showing a state in which the welding member of Comparative Example 1 is viewed from the counterpart material side.

比較例１の溶着部材１における溶着突部３は、断面長方形の略角柱状をなす。換言すると、比較例１の溶着部材１における溶着突部３は、短尺のリブ状をなす。   The welding protrusion 3 in the welding member 1 of Comparative Example 1 has a substantially prismatic shape with a rectangular cross section. In other words, the welding protrusion 3 in the welding member 1 of Comparative Example 1 has a short rib shape.

比較例１の溶着部材１において、左右方向に隣接する溶着突部３のピッチＷ１は７．５ｍｍである。上下方向に隣接する溶着突部３のピッチＷ２は７．６ｍｍである。接合径φ１は約１１．２ｍｍである。接合予定部３１の先端部の左右方向の長さＬは１０ｍｍである。接合予定部３１の先端部の上下方向の長さＷ３は５ｍｍである。接合予定部３１の高さＨ１（図略）は２ｍｍである。溶融予定部３０の高さＨ２（図略）は０．４５ｍｍである。   In the welding member 1 of the comparative example 1, the pitch W1 of the welding protrusions 3 adjacent in the left-right direction is 7.5 mm. The pitch W2 between the welding protrusions 3 adjacent in the vertical direction is 7.6 mm. The joining diameter φ1 is about 11.2 mm. The length L in the left-right direction of the distal end portion of the bonding scheduled portion 31 is 10 mm. The length W3 in the vertical direction of the tip end portion of the joining portion 31 is 5 mm. The height H1 (not shown) of the planned joining portion 31 is 2 mm. The height H2 (not shown) of the melted portion 30 is 0.45 mm.

（比較例２）
比較例２の溶着部材は、溶着突部の形状以外は実施例１の溶着部材と同じものである。比較例２の溶着部材を相手材側から見た様子を模式的に表す要部拡大説明図を図７に示す。 (Comparative Example 2)
The welding member of Comparative Example 2 is the same as the welding member of Example 1 except for the shape of the welding protrusion. FIG. 7 shows an enlarged explanatory view of a main part schematically showing a state where the welding member of Comparative Example 2 is viewed from the counterpart material side.

比較例２の溶着部材１における溶着突部３は、断面長方形の略角柱状をなす。換言すると、比較例２の溶着部材１における溶着突部３は、長尺のリブ状をなす。   The welding protrusion 3 in the welding member 1 of Comparative Example 2 has a substantially prismatic shape with a rectangular cross section. In other words, the welding protrusion 3 in the welding member 1 of Comparative Example 2 has a long rib shape.

比較例２の溶着部材１において、左右方向に隣接する溶着突部３のピッチＷ１は５．５ｍｍである。上下方向に隣接する溶着突部３のピッチＷ２は７．６ｍｍである。接合径φ１は約４５．３ｍｍである。接合予定部３１の先端部の左右方向の長さＬは４５ｍｍである。接合予定部３１の先端部の上下方向の長さＷ３は５ｍｍである。接合予定部３１の高さＨ１（図略）は２ｍｍである。溶融予定部３０の高さＨ２（図略）は０．４５ｍｍである。   In the welding member 1 of the comparative example 2, the pitch W1 of the welding protrusions 3 adjacent in the left-right direction is 5.5 mm. The pitch W2 between the welding protrusions 3 adjacent in the vertical direction is 7.6 mm. The joining diameter φ1 is about 45.3 mm. The length L in the left-right direction of the distal end portion of the joining planned portion 31 is 45 mm. The length W3 in the vertical direction of the tip end portion of the joining portion 31 is 5 mm. The height H1 (not shown) of the planned joining portion 31 is 2 mm. The height H2 (not shown) of the melted portion 30 is 0.45 mm.

（評価試験）
実施例１〜２および比較例１〜２の溶着部材１のドア部２１を所定形状に切り取って、各溶着部材１のテストピースを製作した。また、ＰＰを材料とする相手材８のテストピースを製作した。相手材８のテストピースは、溶着部材１のテストピースより僅かに大型である。実施例１〜２および比較例１の溶着部材１のテストピースはそれぞれ１個ずつ製作し、比較例２の溶着部材１のテストピースは２個製作した。相手材８のテストピースとしては、板厚１．５ｍｍのものを３個製作し、板厚２．５ｍｍのものを１個製作し、板厚２．０ｍｍのものを１個製作した。各エアバッグのテストピースおよび各相手材８のテストピースを用いて、以下の試料１〜５を製作した。なお、各溶着部材１のテストピースには、２つの貫通孔（第１貫通孔５１）を形成した。各相手材８のテストピースには、第１貫通孔５１に対面する位置に、２つの貫通孔（第２貫通孔５２）を形成した。第２貫通孔５２は第１貫通孔５１よりも大径であった。 (Evaluation test)
The test piece of each welding member 1 was manufactured by cutting out the door portion 21 of the welding member 1 of Examples 1-2 and Comparative Examples 1-2 into a predetermined shape. In addition, a test piece of the counterpart material 8 made of PP was produced. The test piece of the mating member 8 is slightly larger than the test piece of the welding member 1. One test piece of each of the welding members 1 of Examples 1 and 2 and Comparative Example 1 was manufactured, and two test pieces of the welding member 1 of Comparative Example 2 were manufactured. As test pieces of the mating member 8, three pieces having a thickness of 1.5 mm were manufactured, one having a thickness of 2.5 mm was manufactured, and one having a thickness of 2.0 mm was manufactured. The following samples 1 to 5 were manufactured using the test piece of each airbag and the test piece of each counterpart material 8. Note that two through holes (first through holes 51) were formed in the test piece of each welding member 1. Two through holes (second through holes 52) were formed in the test piece of each mating member 8 at a position facing the first through hole 51. The second through hole 52 was larger in diameter than the first through hole 51.

実施例１〜２および比較例１の溶着部材１のテストピースを、それぞれ、板厚１．５ｍｍの相手材８のテストピースに振動溶着し、試料１〜３の溶着体を製作した。このときの振幅は３ｍｍであり、振動数は１０１．８Ｈｚであった。振動時間は、試料１の溶着体については、実施例１の溶着部材１のテストピースの溶着突部３が、高さ方向に０．４ｍｍ溶融するように設定した。試料２〜３の溶着体については、各溶着部材１のテストピースの溶着突部３が、高さ方向に０．４５ｍｍ溶融するように適宜設定した。   The test pieces of the welding members 1 of Examples 1 and 2 and Comparative Example 1 were each welded to the test piece of the mating member 8 having a plate thickness of 1.5 mm to manufacture the welded bodies of Samples 1 to 3. The amplitude at this time was 3 mm and the frequency was 101.8 Hz. The vibration time was set so that the welding projection 3 of the test piece of the welding member 1 of Example 1 melted 0.4 mm in the height direction for the welded body of Sample 1. About the welding body of samples 2-3, it set suitably so that the welding protrusion part 3 of the test piece of each welding member 1 might melt | dissolve 0.45 mm in a height direction.

比較例２の溶着部材１のテストピースの一方を、板厚２．５ｍｍの相手材８のテストピースに振動溶着した（試料４）。また、比較例２の溶着部材１のテストピースの他方を、板厚２．０ｍｍの相手材８のテストピースに振動溶着した（試料５）。このときの振幅は３ｍｍであり、振動数は１０１．８Ｈｚであった。振動時間は、溶着部材１のテストピースの溶着突部３が、高さ方向に０．４５ｍｍ溶融するように設定した。   One of the test pieces of the welding member 1 of Comparative Example 2 was vibration welded to the test piece of the mating member 8 having a plate thickness of 2.5 mm (Sample 4). The other test piece of the welding member 1 of Comparative Example 2 was vibration welded to the test piece of the mating member 8 having a thickness of 2.0 mm (Sample 5). The amplitude at this time was 3 mm and the frequency was 101.8 Hz. The vibration time was set so that the welding projection 3 of the test piece of the welding member 1 melted by 0.45 mm in the height direction.

（溶着面割合測定試験）
各溶着部材１のテストピースにおける、接合予定部３１の先端面の面積の総和を算出した。そして、各溶着部材１のテストピースにおける接合面２５全体の面積（１００％）のなかで、この先端面の面積が占める割合（％）を算出した。各溶着部材１のテストピースにおける溶着面割合を表１に示す。 (Welding surface ratio measurement test)
The sum total of the area of the front end surface of the joining plan part 31 in the test piece of each welding member 1 was calculated. And the ratio (%) which the area of this front end surface occupied in the area (100%) of the whole joining surface 25 in the test piece of each welding member 1 was calculated. Table 1 shows the welding surface ratio of each welding member 1 in the test piece.

（意匠性評価試験）
試料１〜５の溶着体における相手材８のテストピース側の凹凸を測定し、試料１〜５の溶着体の意匠性を評価した。相手材８のテストピースの表面に生じている凹凸が５μｍ未満のものを特に意匠性に優れる（Ａ）と評価し、５μｍ以上１０μｍ未満の凹凸がみられるものをやや意匠性に劣る（Ｂ）と評価し、１０μｍ以上の凹凸がみられるものを意匠性に劣る（Ｃ）と評価した。試料１〜５の溶着体の意匠性を表１に示す。 (Design evaluation test)
The unevenness | corrugation by the side of the test piece of the other party material 8 in the welding body of samples 1-5 was measured, and the designability of the welding body of samples 1-5 was evaluated. When the unevenness generated on the surface of the test piece of the mating material 8 is less than 5 μm, it is evaluated as being particularly excellent in design properties (A), and when the unevenness of 5 μm or more but less than 10 μm is observed, the design properties are slightly inferior (B). It evaluated that it was inferior to the designability, and the thing in which the unevenness | corrugation of 10 micrometers or more was seen was evaluated. Table 1 shows the design properties of the welded bodies of Samples 1 to 5.

（剥がれ強度測定試験）
図８に示すように、試料１および５の溶着体９における各第１貫通孔５１および第２貫通孔５２にアイボルト５５を挿通した。第２貫通孔５２にはナット５６を挿入し、このナット５６をアイボルト５５の先端に締結した。ナット５６は第２貫通孔５２に入り込み、相手材８における第１貫通孔５１の周縁部に当接した。試料１および５の溶着体９の端部を固定治具５７に固定し、アイボルト５５を図略の引張装置に取り付けた。そして、引張装置を溶着体９から離れる方向に移動させた。このとき、引張方向の荷重を徐々に増大させつつ、溶着部材１のテストピースが相手材８のテストピースから剥がれるまで、アイボルト５５を引っ張った。そして、溶着部材１のテストピースが相手材８のテストピースから剥がれた時点でアイボルト５５に加えていた引張方向の荷重を測定した。溶着部材１のテストピースが相手材８のテストピースから剥がれた時点における荷重が２９４Ｎ未満である場合を剥がれ強度に劣る（×）と評価し、２９４Ｎ以上１０００Ｎ未満である場合を剥がれ強度に優れる（○）と評価し、１０００Ｎ以上である場合を剥がれ強度に特に優れる（◎）と評価した。試料１、２、４、および６の溶着体の剥がれ強度を表１に示す。以下、溶着部材１のテストピースを単に溶着部材１と略し、相手材８のテストピースを単に相手材８と略する。 (Peeling strength measurement test)
As shown in FIG. 8, eyebolts 55 were inserted through the first through holes 51 and the second through holes 52 in the welded bodies 9 of the samples 1 and 5. A nut 56 was inserted into the second through hole 52, and the nut 56 was fastened to the tip of the eyebolt 55. The nut 56 entered the second through hole 52 and contacted the peripheral edge portion of the first through hole 51 in the counterpart material 8. The ends of the welds 9 of the samples 1 and 5 were fixed to the fixing jig 57, and the eyebolt 55 was attached to a tension device (not shown). Then, the tension device was moved away from the welded body 9. At this time, the eyebolt 55 was pulled until the test piece of the welding member 1 was peeled off from the test piece of the mating member 8 while gradually increasing the load in the tensile direction. Then, the load in the tensile direction applied to the eyebolt 55 when the test piece of the welding member 1 was peeled off from the test piece of the mating member 8 was measured. When the load when the test piece of the welding member 1 is peeled off from the test piece of the mating member 8 is less than 294N, it is evaluated that the peel strength is inferior (x). (Circle)) and the case where it is 1000 N or more was evaluated as excelling in peeling strength ((double-circle)). Table 1 shows the peel strengths of the welded bodies of Samples 1, 2, 4, and 6. Hereinafter, the test piece of the welding member 1 is simply abbreviated as the welding member 1, and the test piece of the mating member 8 is simply abbreviated as the mating material 8.

Figure 2010082813
Figure 2010082813

表１に示すように、試料４の溶着体が意匠性に優れるのに対し、試料５の溶着体は意匠性に劣る。これは、試料４の相手材８は板厚２．５ｍｍであるのに対し、試料５の相手材８は板厚２．０ｍｍであるためである。すなわち、板厚２．０ｍｍ以下の相手材８に、接合径４５．３ｍｍ以上の溶着部材１を振動溶着すると、相手材８の意匠性が悪化する。   As shown in Table 1, the welded body of sample 4 is inferior in design, while the welded body in sample 5 is inferior in design. This is because the counterpart material 8 of the sample 4 has a thickness of 2.5 mm, whereas the counterpart material 8 of the sample 5 has a thickness of 2.0 mm. That is, when the welding member 1 having a bonding diameter of 45.3 mm or more is vibration welded to the counterpart material 8 having a thickness of 2.0 mm or less, the design of the counterpart material 8 is deteriorated.

また、接合径約１１．２ｍｍの溶着部材１を板厚１．５ｍｍの相手材８に振動溶着した試料３の溶着体は意匠性に劣る。これに対し、接合幅約７．１ｍｍの溶着部材１を板厚１．５ｍｍの相手材８に振動溶着した試料２の溶着体は意匠性に優れる。この結果から、接合径を８ｍｍ以下にすることで、相手材８の意匠性悪化を抑制しつつ、板厚２．０ｍｍ以下の相手材８に溶着部材１を振動溶着できることがわかる。すなわち、本発明の溶着部材１は、相手材８の意匠性悪化を抑制しつつ、板厚２．０ｍｍ以下の相手材８に振動溶着できる。   Further, the welded body of Sample 3 in which the welding member 1 having a bonding diameter of about 11.2 mm is vibration welded to the mating member 8 having a plate thickness of 1.5 mm is inferior in design. In contrast, the welded body of Sample 2 in which the welding member 1 having a bonding width of about 7.1 mm is vibration welded to the mating member 8 having a plate thickness of 1.5 mm is excellent in design. From this result, it can be seen that by setting the bonding diameter to 8 mm or less, the welding member 1 can be vibration welded to the counterpart material 8 having a plate thickness of 2.0 mm or less while suppressing the deterioration of the design of the counterpart material 8. That is, the welding member 1 of the present invention can be vibration welded to the counterpart material 8 having a plate thickness of 2.0 mm or less while suppressing deterioration of the design of the counterpart material 8.

また、接合径約２．０ｍｍの溶着部材１を板厚１．５ｍｍの相手材８に振動溶着した試料１の溶着体は、接合径約７．１ｍｍの溶着部材１を板厚１．５ｍｍの相手材８に振動溶着した試料２の溶着体に比べてさらに意匠性に優れる。この結果から、接合径を２ｍｍ以下にすることで、相手材８の意匠性悪化をさらに抑制しつつ、板厚２．０ｍｍ以下の相手材８に溶着部材１を振動溶着できることがわかる。   In addition, the welded body of Sample 1 in which the welding member 1 having a bonding diameter of about 2.0 mm is vibration-welded to the mating member 8 having a thickness of 1.5 mm has the welding member 1 having a bonding diameter of about 7.1 mm and a thickness of 1.5 mm. Compared with the welded body of sample 2 that is vibration welded to the counterpart material 8, the design is further improved. From this result, it can be seen that by setting the bonding diameter to 2 mm or less, the welding member 1 can be vibration welded to the counterpart material 8 having a plate thickness of 2.0 mm or less while further suppressing the deterioration of the design of the counterpart material 8.

また、試料１の溶着体は、試料５の溶着体よりも剥がれ強度に優れる。これは、試料５の溶着体における溶着部材１はリブ状をなす溶着突部３を持つのに対し、試料１の溶着体は島状に点在する溶着突部３を持つためであると考えられる。すなわち、試料１の溶着体と相手材８との接合部分は島状に点在するため、溶着部材１と相手材８とに作用した剥がれ方向の力が広範囲に分散する。また、溶着部材１と相手材８との接合強度の偏りが小さくなる。このため、試料１の溶着体における溶着部材１は相手材８に強度高く振動溶着でき、試料１の溶着体は剥がれ強度に優れると考えられる。   Further, the welded body of sample 1 is superior in peel strength to the welded body of sample 5. This is because the welded member 1 in the welded body of the sample 5 has the welded protrusions 3 in the form of ribs, whereas the welded body of the sample 1 has the welded protrusions 3 scattered in islands. It is done. That is, since the joining portions of the welded body of the sample 1 and the counterpart material 8 are scattered in an island shape, the force in the peeling direction acting on the weld member 1 and the counterpart material 8 is dispersed over a wide range. In addition, the deviation in bonding strength between the welding member 1 and the counterpart material 8 is reduced. For this reason, the welding member 1 in the welded body of the sample 1 can be vibration welded to the counterpart material 8 with high strength, and the welded body of the sample 1 is considered to have excellent peeling strength.

なお、溶着体の剥がれ強度を高めるためには、溶着面割合を大きくするのが有効である。一方、上述したように、相手材の意匠性悪化を抑制するためには接合径を小さくするのが有効である。溶着面割合を大きくし、かつ、接合径を小さくするためには、接合予定部３１の先端部を実施例１のように断面真円形状にするか、またはそれに近い形状にするのが良いと考えられる。すなわち、本発明の溶着部材において、接合予定部３１の先端部は、断面円形状または五角形以上の断面多角形状をなすのが好ましい。より好ましくは、接合予定部３１の先端部は、断面真円形状または五角形以上の断面正多角形状をなすのがよい。なお、接合予定部３１の先端部を断面真円形状またはそれに近い形状にすることで、個々の溶着突部３と相手材８との接合部分における接合強度の偏りを小さくできる。このため、この場合には溶着体の剥がれ強度をさらに向上させることができる。   In order to increase the peel strength of the welded body, it is effective to increase the weld surface ratio. On the other hand, as described above, it is effective to reduce the bonding diameter in order to suppress the deterioration of the design properties of the counterpart material. In order to increase the welding surface ratio and reduce the bonding diameter, it is preferable that the tip end portion of the bonding planned portion 31 has a circular cross-sectional shape as in Example 1 or a shape close thereto. Conceivable. That is, in the welding member of the present invention, it is preferable that the distal end portion of the joining planned portion 31 has a circular cross section or a polygonal cross section that is a pentagon or more. More preferably, the tip end portion of the joining planned portion 31 may have a perfectly circular cross section or a regular polygonal cross section having a pentagonal shape or more. In addition, by making the front-end | tip part of the joining plan part 31 into a cross-sectional perfect circle shape or a shape close | similar to it, the bias | inclination of the joining strength in the junction part of each welding protrusion 3 and the counterpart material 8 can be made small. For this reason, in this case, the peel strength of the welded body can be further improved.

溶着突部３の直径は、振動溶着時における溶着突部３の溶融高さに応じて適宜設定すれば良い。例えば、溶着突部３をテーパ状にする場合には、溶着突部３の溶融高さに応じて接合予定部３１の先端部の位置を設定し、この先端部の直径（接合径φ１）が８ｍｍ以下になるように溶着突部３の形状を設計すれば良い。   What is necessary is just to set the diameter of the welding protrusion 3 suitably according to the melt height of the welding protrusion 3 at the time of vibration welding. For example, when the welding projection 3 is tapered, the position of the tip end of the planned joining portion 31 is set according to the melt height of the welding projection 3, and the diameter (joining diameter φ 1) of the tip is set. What is necessary is just to design the shape of the welding protrusion 3 so that it may become 8 mm or less.

本発明の溶着部材１における溶融予定部３０の先端部は、平面状をなしても良いし、曲面状や尖端形状をなしても良い。溶融予定部３０の先端部の幅が小さい程、振動溶着時の抵抗が小さくなる。   The front end portion of the planned melting portion 30 in the welding member 1 of the present invention may have a flat shape, a curved shape, or a pointed shape. The resistance at the time of vibration welding becomes smaller as the width of the front end portion of the fusion planned portion 30 is smaller.

なお、本発明の溶着部材は、エアバッグドアに限らず、相手材に振動溶着される種々の物品として使用できる。   In addition, the welding member of this invention can be used as various articles | goods vibration-welded not only to an airbag door but to a counterpart material.

実施例１の溶着部材を模式的に表す斜視図である。3 is a perspective view schematically showing a welding member of Example 1. FIG. 実施例１の溶着部材の要部拡大斜視図である。It is a principal part expansion perspective view of the welding member of Example 1. FIG. 実施例１の溶着部材を相手材側から見た様子を模式的に表す要部拡大説明図である。It is a principal part expansion explanatory drawing which shows typically a mode that the welding member of Example 1 was seen from the other party member side. 実施例１の溶着部材を側方から見た様子を模式的に表す要部拡大説明図である。It is a principal part expansion explanatory drawing which represents typically a mode that the welding member of Example 1 was seen from the side. 実施例２の溶着部材を相手材側から見た様子を模式的に表す要部拡大説明図である。It is principal part expansion explanatory drawing which represents typically a mode that the welding member of Example 2 was seen from the other party member side. 比較例１の溶着部材を相手材側から見た様子を模式的に表す要部拡大説明図である。It is principal part expansion explanatory drawing which represents typically a mode that the welding member of the comparative example 1 was seen from the other party member side. 比較例２の溶着部材を相手材側から見た様子を模式的に表す要部拡大説明図である。It is principal part expansion explanatory drawing which represents typically a mode that the welding member of the comparative example 2 was seen from the other party member side. 剥がれ強度測定試験において、各試料の溶着体にアイボルトおよびナットを取り付けた様子を模式的に表す説明図である。It is explanatory drawing which represents typically a mode that the eyebolt and the nut were attached to the welded body of each sample in the peeling strength measurement test.

符号の説明Explanation of symbols

１：溶着部材（エアバッグドア） ２：本体部 ３：溶着突部
８：相手材（インパネ） ２５：接合面 ３０：溶融予定部
３１：接合予定部 1: Welding member (airbag door) 2: Main body part 3: Welding protrusion 8: Counterpart material (instrument panel) 25: Joining surface 30: Melting planned part 31: Joining planned part

Claims (5)

樹脂製の相手材に振動溶着される樹脂製の溶着部材であって、
該相手材の後面に対面する接合面を持つ本体部と、
該接合面に形成され、突起状をなし、島状に点在する複数の溶着突部と、を持ち、
該溶着突部は、振動溶着時に溶融する溶融予定部と、該振動溶着時に残存して該相手材の該後面に接合する接合予定部と、を持ち、
該接合予定部の先端部は、直径８ｍｍ以下であることを特徴とする溶着部材。 A resin welding member that is vibration welded to a resin counterpart,
A main body having a joint surface facing the rear surface of the mating member;
Formed on the joining surface, forming a protrusion, and having a plurality of welding protrusions scattered in an island shape,
The welding projection has a melting planned portion that melts at the time of vibration welding, and a bonding planned portion that remains at the time of vibration welding and is bonded to the rear surface of the mating member,
The welding member, wherein a tip end portion of the planned joining portion has a diameter of 8 mm or less. 前記接合予定部の先端部は、直径２ｍｍ以下である請求項１に記載の溶着部材。   The welding member according to claim 1, wherein a tip end portion of the joining planned portion has a diameter of 2 mm or less. 前記接合予定部の先端部は、五角形以上の断面多角形状をなす請求項１または請求項２に記載の溶着部材。   The welding member according to claim 1 or 2, wherein a tip end portion of the joining portion has a polygonal cross-sectional shape of a pentagon or more. 前記接合予定部の先端部は、断面円形状をなす請求項１または請求項２に記載の溶着部材。   The welding member according to claim 1, wherein a tip end portion of the planned joining portion has a circular cross section. 前記相手材の板厚は２．０ｍｍ以下である請求項１〜請求項４の何れか一つに記載の溶着部材。   The welding member according to any one of claims 1 to 4, wherein a thickness of the mating member is 2.0 mm or less.
JP2008251040A 2008-09-29 2008-09-29 Welding material Active JP5035200B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008251040A JP5035200B2 (en) 2008-09-29 2008-09-29 Welding material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008251040A JP5035200B2 (en) 2008-09-29 2008-09-29 Welding material

Publications (2)

Publication Number Publication Date
JP2010082813A true JP2010082813A (en) 2010-04-15
JP5035200B2 JP5035200B2 (en) 2012-09-26

Family

ID=42247270

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008251040A Active JP5035200B2 (en) 2008-09-29 2008-09-29 Welding material

Country Status (1)

Country Link
JP (1) JP5035200B2 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07256760A (en) * 1994-01-18 1995-10-09 Branson Ultraschall Niederlassung Der Emerson Technol Gmbh & Co Production of fiber-coated plastic component part
JP2002012116A (en) * 2000-06-29 2002-01-15 Mitsuboshi Belting Ltd Instrument panel integrated with air bag door and method of manufacture
JP2004058468A (en) * 2002-07-29 2004-02-26 Nippon Plast Co Ltd Resin structure
JP2004167716A (en) * 2002-11-18 2004-06-17 Nishikawa Kasei Co Ltd Resin molded object
JP2004168112A (en) * 2002-11-18 2004-06-17 Hitachi Chem Co Ltd Instrument panel for automobile
JP2004338092A (en) * 2003-05-12 2004-12-02 Inoac Corp Fusion-bonding structure of resin molded member
JP2006095730A (en) * 2004-09-28 2006-04-13 Gp Daikyo Corp Joined structure of resin molded product and joining method
JP2007137239A (en) * 2005-11-17 2007-06-07 Sanko Gosei Ltd Air bag device for vehicle

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07256760A (en) * 1994-01-18 1995-10-09 Branson Ultraschall Niederlassung Der Emerson Technol Gmbh & Co Production of fiber-coated plastic component part
JP2002012116A (en) * 2000-06-29 2002-01-15 Mitsuboshi Belting Ltd Instrument panel integrated with air bag door and method of manufacture
JP2004058468A (en) * 2002-07-29 2004-02-26 Nippon Plast Co Ltd Resin structure
JP2004167716A (en) * 2002-11-18 2004-06-17 Nishikawa Kasei Co Ltd Resin molded object
JP2004168112A (en) * 2002-11-18 2004-06-17 Hitachi Chem Co Ltd Instrument panel for automobile
JP2004338092A (en) * 2003-05-12 2004-12-02 Inoac Corp Fusion-bonding structure of resin molded member
JP2006095730A (en) * 2004-09-28 2006-04-13 Gp Daikyo Corp Joined structure of resin molded product and joining method
JP2007137239A (en) * 2005-11-17 2007-06-07 Sanko Gosei Ltd Air bag device for vehicle

Also Published As

Publication number Publication date
JP5035200B2 (en) 2012-09-26

Similar Documents

Publication Publication Date Title
JP2010168027A (en) Airbag door
US10118254B2 (en) Manufacturing method for a side body structure of a vehicle and a side body structure of a vehicle
JP5415455B2 (en) Friction plug welding method and system
EP2002919A3 (en) Hallow structures formed with friction stir welding
CN108223531B (en) Friction rivet for joining dissimilar materials
KR20160096707A (en) Joined body of dissimilar metals and method for producing joined body of dissimilar metals
JPWO2017170517A1 (en) Laser welding method
JP2003517934A (en) Method of joining two members of a vehicle seat
US20180297142A1 (en) Member joining structure
JP5035200B2 (en) Welding material
JP2003260739A (en) Bound article and method for binding bound article
JP5446744B2 (en) Car body joining structure and assembling method of car body joining structure
US10822120B2 (en) Method and system for connecting two aircraft components from a thermoplastic composite material
CN102009475B (en) Attachment part for connection with a component by means of torsional ultrasound welding
EP2065166A1 (en) Vibrational welding unit structure
JP6441295B2 (en) Junction structure and manufacturing method thereof
JP2011143892A (en) Vehicular opening/closing cover structure and method of manufacturing inner panel used for vehicular opening/closing cover
JP2013252834A (en) Vehicular structure fixing method and vehicular structure fixed by the method
JP2010083166A (en) Airbag door
US20120168057A1 (en) Method of vibration welding
JP2006256325A (en) Method for arranging ejection channel on airbag covering loaded with target breaking line and assembly component manufactured by the method
JP2010149789A (en) Air conditioning duct
WO2015046448A1 (en) Stir lock welding method, and welded article
JP4683917B2 (en) Positioning welding structure of resin parts
JP2019089541A (en) Joint body and automobile seat frame

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100927

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20120323

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20120410

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120518

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120605

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120618

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150713

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 5035200

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150