JP2006002887A - Bolt fastening structure - Google Patents

Bolt fastening structure Download PDF

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JP2006002887A
JP2006002887A JP2004181099A JP2004181099A JP2006002887A JP 2006002887 A JP2006002887 A JP 2006002887A JP 2004181099 A JP2004181099 A JP 2004181099A JP 2004181099 A JP2004181099 A JP 2004181099A JP 2006002887 A JP2006002887 A JP 2006002887A
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plate
bolt
washer
hole
fastening structure
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Kazuhiko Iwasako
和彦 祝迫
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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  • Bolts, Nuts, And Washers (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To easily prevent electroerosion between a base member and a plate member and between the plate member and a bolt by solving the problem on the electroerosion between the base member and the plate member and between the plate member and the bolt. <P>SOLUTION: An insulating washer member 43 is formed of an insulating material into an approximately U-shaped plate clip to be held in the plate member 42. The insulating washer member 43 has an upper washer body 51 covering part of the upper face of the plate member 42, an upper face hole 53 formed in the upper washer body 51 to face a bolt through-hole 47 of the plate member 42, a lower washer body 52 covering part of the lower face of the plate member 42, a lower face hole 54 formed in the lower washer body 52 to face the bolt through-hole 47, and a connection part 55 for joining the upper washer body 51 to the lower washer body 52. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、第１の部材に第２の部材を絶縁しつつボルトで締結するボルト締結構造に関するものである。   The present invention relates to a bolt fastening structure in which a second member is fastened with a bolt while insulating a second member.

ボルト締結構造として、特定金属材料で形成した第１の部材に特定金属とは異なる金属材料で形成した第２の部材を取付けるボルト締結構造が実用に供されている。
実用のボルト締結構造は、特定金属材料で形成した第１の部材と特定金属とは異なる金属材料で形成した第２の部材との間に絶縁ワッシャを介在させれば実用上十分であった。 As a bolt fastening structure, a bolt fastening structure in which a second member formed of a metal material different from a specific metal is attached to a first member formed of a specific metal material is practically used.
A practical bolt fastening structure is practically sufficient if an insulating washer is interposed between a first member formed of a specific metal material and a second member formed of a metal material different from the specific metal.

このようなボルト締結構造として、ディスクブレーキ固定部とナックルとの間に絶縁ワッシャを介在させるものが知られている（例えば、特許文献１参照。）。
特開平１１−３０３９０６号公報（第５頁、図１） As such a bolt fastening structure, a structure in which an insulating washer is interposed between a disc brake fixing portion and a knuckle is known (for example, see Patent Document 1).
JP-A-11-303906 (5th page, FIG. 1)

図１２は従来の基本構成を説明する図であり、ボルト締結構造２００は、第１の部材（ディスクブレーキ固定部）２０２を鋼材で形成し、この第１の部材２０２に座ぐり孔２０３を設け、この座ぐり孔２０３に嵌め込む絶縁ワッシャ２０４を絶縁材料で形成し、第１の部材２０２に取付ける第２の部材（ナックル）２０５をアルミニウム合金で形成し、第１の部材２０２に絶縁ワッシャ２０４を介して第２の部材２０５をボルト２０６にて固定したものである。   FIG. 12 is a diagram for explaining a conventional basic configuration. In the bolt fastening structure 200, a first member (disc brake fixing portion) 202 is formed of a steel material, and a counterbore hole 203 is provided in the first member 202. The insulating washer 204 that fits into the counterbore 203 is formed of an insulating material, the second member (knuckle) 205 attached to the first member 202 is formed of an aluminum alloy, and the insulating washer 204 is formed on the first member 202. The second member 205 is fixed by a bolt 206 via

しかし、ボルト締結構造では、第１の部材（ディスクブレーキ固定部）２０２と第２の部材（ナックル）２０５との間に絶縁ワッシャを介在させたものであり、一般的にボルト２０６は鋼材なので、このボルト２０６を介して第１の部材２０２と第２の部材２０５との間に電食が起こるという欠点があった。すなわち、第２の部材２０５とボルト２０６との間に電食が起こる。   However, in the bolt fastening structure, an insulating washer is interposed between the first member (disc brake fixing portion) 202 and the second member (knuckle) 205, and the bolt 206 is generally a steel material. There is a drawback that electrolytic corrosion occurs between the first member 202 and the second member 205 via the bolt 206. That is, electrolytic corrosion occurs between the second member 205 and the bolt 206.

また、この電食を防止するためにボルト２０５と第２の部材２０５との間に別の絶縁ワッシャを追加するのでは、作業性の悪化を招くことになり、ボルトに絶縁被膜を施すのでは、コストの高騰を招くことになる。   In addition, if another insulating washer is added between the bolt 205 and the second member 205 in order to prevent this electrolytic corrosion, workability will be deteriorated, and an insulating film will not be applied to the bolt. This will lead to a rise in costs.

さらに、ボルト締結構造２００では、第１の部材２０２の座ぐり孔２０３に絶縁ワッシャ２０４を嵌め込む際に、絶縁ワッシャ２０４に接着材を塗布して接着するものなので、絶縁ワッシャ２０４を嵌め込む作業が困難であり、第２の部材（ナックル）２０５の組立性を損なうという問題もあった。   Further, in the bolt fastening structure 200, when the insulating washer 204 is fitted into the counterbore hole 203 of the first member 202, an adhesive is applied to the insulating washer 204 and bonded, so the work for fitting the insulating washer 204 is performed. There is also a problem that the assembling property of the second member (knuckle) 205 is impaired.

すなわち、第１の部材及び第２の部材間の電食、且つ第２の部材及びボルト間の電食を簡易に防止することができるとともに、電食を防止する際に組立の作業性の低下を最小限に止めることができるボルト締結構造が望まれる。   That is, the electric corrosion between the first member and the second member and the electric corrosion between the second member and the bolt can be easily prevented, and the workability of the assembly is reduced when the electric corrosion is prevented. It is desirable to have a bolt fastening structure that can minimize the above.

本発明は、ベース部材（前述した「第１の部材」に相当する）及び板状部材（前述した「第２の部材」に相当する）間、且つ板状部材及びボルト間に電食が起きる点を解決し、ベース部材及び板状部材間、且つ板状部材及びボルト間の電食を簡易に防止することができるとともに、ベース部材及び板状部材間、且つ板状部材及びボルト間の電食を防止する際に作業性が悪化する点を解決し、電食を防止する際に組立の作業性の低下を最小限に止めることができるボルト締結構造を提供することを課題とする。   In the present invention, electrolytic corrosion occurs between the base member (corresponding to the “first member” described above) and the plate member (corresponding to the “second member” described above), and between the plate member and the bolt. It is possible to solve the above problems and easily prevent electrolytic corrosion between the base member and the plate-like member and between the plate-like member and the bolt, and between the base member and the plate-like member and between the plate-like member and the bolt. It is an object of the present invention to provide a bolt fastening structure that solves the problem that workability deteriorates when preventing erosion, and that can minimize deterioration in workability of assembly when preventing electric corrosion.

請求項１に係る発明は、特定金属材料にて形成したベース部材と、このベース部材に取付けるために特定金属材料とは異なる金属材料にて形成した板状部材と、これらのベース部材と板状部材との間に介在させる絶縁ワッシャ部材と、これらのベース部材、板状部材及び絶縁ワッシャ部材を一体的に結合するボルトと、からなるボルト締結構造において、絶縁ワッシャ部材が、板状部材に挟み込むことが可能に形成するとともに絶縁材料にて形成した略Ｕ字状の板状クリップであり、絶縁ワッシャ部材に、板状部材の上面の一部を覆う上部ワッシャ本体と、この上部ワッシャ本体に形成することで板状部材のボルト貫通孔に臨ます上面孔と、板状部材の下面の一部を覆う下部ワッシャ本体と、この下部ワッシャ本体に形成することでボルト貫通孔に臨ます下面孔と、上部ワッシャ本体及び下部ワッシャ本体を繋ぐ連結部と、を備えたことを特徴とする。   The invention according to claim 1 is a base member formed of a specific metal material, a plate member formed of a metal material different from the specific metal material to be attached to the base member, and the base member and the plate shape In a bolt fastening structure comprising an insulating washer member interposed between members and a bolt that integrally couples the base member, the plate-like member and the insulating washer member, the insulating washer member is sandwiched between the plate-like members. It is a substantially U-shaped plate-like clip formed of an insulating material and formed on an insulating washer member, an upper washer body that covers a part of the upper surface of the plate-like member, and an upper washer body By doing so, an upper surface hole that faces the bolt through hole of the plate-shaped member, a lower washer body that covers a part of the lower surface of the plate-shaped member, and a bolt is formed by forming the lower washer body. To a lower surface hole to face the hole, and a connecting portion for connecting the upper washer body and the lower washer body, comprising the.

例えば、第１の部材（ベース部材）及び第２の部材（板状部材）間の電食、且つ第２の部材（板状部材）及びボルト間の電食を簡易に防止できるとすれば、電食を防止する際に組立の作業性の低下を最小限に止めることができるので好ましいことである。   For example, if it is possible to easily prevent electrolytic corrosion between the first member (base member) and the second member (plate member), and electrolytic corrosion between the second member (plate member) and the bolt, This is preferable because it is possible to minimize a reduction in assembly workability when preventing electrolytic corrosion.

そこで、絶縁ワッシャ部材を、板状部材に挟み込むことが可能に形成するとともに絶縁材料にて形成した略Ｕ字状の板状クリップに構成し、上部ワッシャ本体で板状部材の上面を覆い、下部ワッシャ本体で板状部材の下面を覆い、板状部材のボルト貫通孔に上面孔及び下面孔を臨ませ、ベース部材に板状部材をボルトで締結することで、板状部材及びベース部材間、且つ板状部材及びボルト間を絶縁するようにした。   Therefore, the insulating washer member is formed so as to be sandwiched between the plate-like members and is formed into a substantially U-shaped plate-like clip formed of an insulating material, and the upper washer body covers the upper surface of the plate-like member, and the lower portion Cover the lower surface of the plate-shaped member with the washer body, face the upper surface hole and the lower surface hole to the bolt through hole of the plate-shaped member, and fasten the plate-shaped member to the base member with bolts, between the plate-shaped member and the base member, In addition, the plate member and the bolt are insulated.

絶縁ワッシャ部材に、上部ワッシャ本体及び下部ワッシャ本体を繋ぐ連結部を設けることで、上部ワッシャ本体及び下部ワッシャ本体を連結する。   The upper washer main body and the lower washer main body are connected to each other by providing a connecting portion that connects the upper washer main body and the lower washer main body to the insulating washer member.

請求項２に係る発明は、上面孔及び／若しくは下面孔の周りに、ボルト貫通孔のエッジを覆う縦壁部を形成したことを特徴とする。
上面孔及び／若しくは下面孔の周りに、ボルト貫通孔のエッジを覆う縦壁部を形成することで、ボルト貫通孔のエッジとボルトの側面との接触を確実に防止するようにした。
また、ボルト貫通孔に縦壁部を嵌合させるようにすることで、縦壁部に位置決め機能を持たす。 The invention according to claim 2 is characterized in that a vertical wall portion that covers the edge of the bolt through hole is formed around the upper surface hole and / or the lower surface hole.
A vertical wall portion covering the edge of the bolt through hole is formed around the upper surface hole and / or the lower surface hole, thereby reliably preventing contact between the edge of the bolt through hole and the side surface of the bolt.
Further, the vertical wall portion is provided with a positioning function by fitting the vertical wall portion into the bolt through hole.

請求項１に係る発明では、絶縁ワッシャ部材に、板状部材の上面の一部を覆う上部ワッシャ本体と、この上部ワッシャ本体に形成することで板状部材のボルト貫通孔に臨ます上面孔と、板状部材の下面の一部を覆う下部ワッシャ本体と、この下部ワッシャ本体に形成することでボルト貫通孔に臨ます下面孔と、上部ワッシャ本体及び下部ワッシャ本体を繋ぐ連結部と、を備えたので、板状部材及びベース部材間、且つ板状部材及びボルト間を絶縁を容易に行うことができる。   In the invention according to claim 1, the insulating washer member includes an upper washer body that covers a part of the upper surface of the plate-shaped member, and an upper surface hole that faces the bolt through hole of the plate-shaped member by being formed on the upper washer body. A lower washer body that covers a part of the lower surface of the plate-like member, a lower surface hole that faces the bolt through hole by forming in the lower washer body, and a connecting portion that connects the upper washer body and the lower washer body. Therefore, it is possible to easily insulate between the plate member and the base member and between the plate member and the bolt.

この結果、板状部材及びベース部材間、且つ板状部材及びボルト間の電食を簡易に防止することができ、電食を防止する際に組立の作業性の低下を最小限に止めることができるという利点がある。   As a result, it is possible to easily prevent electrical corrosion between the plate-like member and the base member, and between the plate-like member and the bolt, and to minimize degradation of assembly workability when preventing electrical corrosion. There is an advantage that you can.

絶縁ワッシャ部材に、上部ワッシャ本体及び下部ワッシャ本体を繋ぐ連結部を設けたので、上部ワッシャ本体及び下部ワッシャ本体を連結することができる。
この結果、上部ワッシャ本体及び下部ワッシャ本体を一体的に形成することができ、部品点数の低減を図ることができる。さらに、電食を防止するためのコストの低減を図ることができるという利点がある。 Since the connection part which connects an upper washer main body and a lower washer main body was provided in the insulating washer member, an upper washer main body and a lower washer main body can be connected.
As a result, the upper washer main body and the lower washer main body can be integrally formed, and the number of parts can be reduced. Furthermore, there is an advantage that the cost for preventing electrolytic corrosion can be reduced.

請求項２に係る発明では、上面孔及び／若しくは下面孔の周りに、ボルト貫通孔のエッジを覆う縦壁部を形成したので、ボルト貫通孔のエッジとボルトの側面との接触を確実に防止することができる。
この結果、例えば、ボルトに絶縁被膜などの表面処理を施す必要はないので、電食防止のためにかかるコストの増加を抑えることができるという利点がある。
また、ボルト貫通孔に縦壁部を嵌合させるようにしたので、縦壁部に位置決め機能を持たすことができる。この結果、ベース部材に板状部材を締結する際の作業性の向上を図ることができるという利点がある。 In the invention according to claim 2, since the vertical wall portion covering the edge of the bolt through hole is formed around the upper surface hole and / or the lower surface hole, the contact between the edge of the bolt through hole and the side surface of the bolt is surely prevented. can do.
As a result, for example, it is not necessary to subject the bolt to a surface treatment such as an insulating coating, so that there is an advantage that an increase in cost for preventing electrolytic corrosion can be suppressed.
Further, since the vertical wall portion is fitted into the bolt through hole, the vertical wall portion can have a positioning function. As a result, there is an advantage that workability at the time of fastening the plate-like member to the base member can be improved.

本発明を実施するための最良の形態を添付図に基づいて以下に説明する。なお、図面は符号の向きに見るものとする。
図１は本発明に係るボルト締結構造を採用した車両の斜視図であり、１０は車両、１１は車体、１２はフロントボデー、１３はフロントバンパ、１４はフロントグリル、１５は前照灯、１６はボンネット、４２は板状部材としてのフロントフェンダ、１８は前輪、１９はドアミラー、２１はルーフ、２２は前ドア、２３は後ドア、２４は後輪、２５はリヤバンパ、２６はトランクリッド、２７はフロントウインドである。
ボルト締結構造４０は、後述するように、車体１１側にフロントフェンダ４２を固定するための締結構造である。 The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a perspective view of a vehicle employing a bolt fastening structure according to the present invention. 10 is a vehicle, 11 is a vehicle body, 12 is a front body, 13 is a front bumper, 14 is a front grille, 15 is a headlamp, 16 Is a bonnet, 42 is a front fender as a plate member, 18 is a front wheel, 19 is a door mirror, 21 is a roof, 22 is a front door, 23 is a rear door, 24 is a rear wheel, 25 is a rear bumper, 26 is a trunk lid, 27 Is the front window.
The bolt fastening structure 40 is a fastening structure for fixing the front fender 42 to the vehicle body 11 side, as will be described later.

図２は本発明に係るボルト締結構造を採用した車両のフロントボデーの斜視図である。
フロントボデー１２は、左右のサイドフレーム３１，３１の先端近くにそれぞれ左右の縦フレーム３２，３２を取付け、これらの左右の縦フレーム３２，３２の上端同士にアッパクロスメンバ３３を渡し、左右の縦フレーム３２，３２の下端同士にロアクロスメンバ３４を渡し、これらのアッパ・ロアクロスメンバ３３，３４の中央にセンタ縦フレーム３５を渡し、アッパクロスメンバ３３の左右端部からそれぞれベース部材としての左右のフロントホイールハウスアッパメンバ４１，４１を延ばし、これらの左右のフロントホイールハウスアッパメンバ４１，４１の先端同士にダッシュボード３７を渡し、左右のサイドフレーム３１，３１及び左右のフロントホイールハウスアッパメンバ４１，４１の間にそれぞれ左右のダンパハウジング３８，３８を設け、左右のフロントホイールハウスアッパメンバ４１，４１にそれぞれ左右のフロントフェンダ４２，４２を取付けるものである。
図中、３９は、左右の縦フレーム３２，３２、アッパ・ロアクロスメンバ３３，３４及びセンタ縦フレーム３５で構成するバルクヘッドを示す。 FIG. 2 is a perspective view of a front body of a vehicle employing the bolt fastening structure according to the present invention.
The front body 12 has left and right vertical frames 32 and 32 attached near the tips of the left and right side frames 31 and 31, respectively, and an upper cross member 33 is passed between the upper ends of the left and right vertical frames 32 and 32, thereby A lower cross member 34 is passed between the lower ends of the frames 32, 32, a center vertical frame 35 is passed to the center of these upper / lower cross members 33, 34, and left and right ends as base members from the left and right ends of the upper cross member 33, respectively. The front wheel house upper members 41, 41 are extended, and a dashboard 37 is passed between the ends of the left and right front wheel house upper members 41, 41 so that the left and right side frames 31, 31 and the left and right front wheel house upper members 41 , 41 between the left and right damper housings The 8, 38 is provided, in which each of the left and right front wheel house upper members 41, 41 attached to left and right front fenders 42, 42.
In the figure, reference numeral 39 denotes a bulkhead composed of left and right vertical frames 32, 32, upper / lower cross members 33, 34 and a center vertical frame 35.

以下、フロントホイールハウスアッパメンバ４１を「ベース部材４１」と記載するとともに、フロントフェンダ４２を「板状部材４２」を記載し、ボルト締結構造４０を詳細に説明する。   Hereinafter, the front wheel house upper member 41 will be described as “base member 41”, the front fender 42 will be described as “plate member 42”, and the bolt fastening structure 40 will be described in detail.

図３は本発明に係るボルト締結構造の分解斜視図であり、ボルト締結構造４０は、特定金属材料としての鋼材でベース部材４１形成し、このベース部材４１に取付けるために特定金属材料（鋼材）とは異なる金属材料（アルミニウム合金）で板状部材４２形成し、これらのベース部材４１と板状部材４２との間に介在させるために樹脂（絶縁材料）にて絶縁ワッシャ部材４３を形成し、これらのベース部材４１、板状部材４２及び絶縁ワッシャ部材４３をボルト４４で一体的に結合するものである。   FIG. 3 is an exploded perspective view of the bolt fastening structure according to the present invention. The bolt fastening structure 40 includes a base member 41 formed of a steel material as a specific metal material, and a specific metal material (steel material) for attaching to the base member 41. The plate member 42 is formed of a metal material (aluminum alloy) different from the above, and the insulating washer member 43 is formed of resin (insulating material) so as to be interposed between the base member 41 and the plate member 42, These base member 41, plate-like member 42, and insulating washer member 43 are integrally connected by bolts 44.

ベース部材４１は、ボルト４４をねじ込む角形のナット４５と、このナット４５を臨ませる孔４８と、を備える。
また、板状部材４２は、絶縁ワッシャ部材４３を差込むエッジ部４６と、ボルト４４を貫通させるボルト貫通孔４７と、を備えたものである。なお、ボルト４４はフランジ付のボルトである。 The base member 41 includes a square nut 45 into which a bolt 44 is screwed, and a hole 48 through which the nut 45 faces.
The plate-like member 42 includes an edge portion 46 into which the insulating washer member 43 is inserted, and a bolt through hole 47 through which the bolt 44 is passed. The bolts 44 are flanged bolts.

図４は図３の４−４線断面図であり、絶縁ワッシャ部材４３の断面を示す。
絶縁ワッシャ部材４３は、板状部材４２に挟み込むことが可能に形成するとともに絶縁材料にて形成した略Ｕ字状の板状クリップであり、板状部材４２の上面の一部を覆う上部ワッシャ本体５１にボルト貫通孔４７に臨ます上面孔５３を形成し、板状部材４２の下面の一部を覆う下部ワッシャ本体５２にボルト貫通孔４７に臨ます下面孔５４を形成し、上部ワッシャ本体５１及び下部ワッシャ本体５２を連結部５５で繋ぎ、上面孔５３の周りにボルト貫通孔４７のエッジ４７ａを覆う縦壁部としての上縦壁部５７を形成し、下面孔５４の周りにボルト貫通孔４７のエッジ４７ａを覆う縦壁部としての下縦壁部５８を形成し、上部ワッシャ本体５１に板状部材４２に嵌合するときの案内部５６を形成したものである。 4 is a cross-sectional view taken along line 4-4 of FIG. 3, and shows a cross section of the insulating washer member 43. FIG.
The insulating washer member 43 is a substantially U-shaped plate-like clip formed so as to be sandwiched between the plate-like members 42 and made of an insulating material, and covers an upper washer main body that covers a part of the upper surface of the plate-like member 42. An upper surface hole 53 that faces the bolt through hole 47 is formed in 51, and a lower surface hole 54 that faces the bolt through hole 47 is formed in the lower washer body 52 that covers a part of the lower surface of the plate-like member 42. The upper washer body 52 is connected by the connecting portion 55, the upper vertical wall portion 57 is formed around the upper surface hole 53 as a vertical wall portion covering the edge 47 a of the bolt through hole 47, and the bolt through hole is formed around the lower surface hole 54. A lower vertical wall portion 58 as a vertical wall portion covering the edge 47a of 47 is formed, and a guide portion 56 for fitting the plate-like member 42 to the upper washer main body 51 is formed.

図５は図１の５−５線断面図であり、ボルト締結構造４０は、特定金属材料（鋼材）にて形成したベース部材（第１の部材）４１と、このベース部材４１に取付けるために特定金属材料（鋼材）とは異なる金属材料（アルミニウム合金）にて形成した板状部材（第２の部材）４２と、これらのベース部材４１と板状部材４２との間に介在させる絶縁ワッシャ部材４３と、これらのベース部材４１、板状部材４２及び絶縁ワッシャ部材４３を一体的に結合するボルト４４と、からなるボルト締結構造において、絶縁ワッシャ部材４３が、板状部材４２に挟み込むことが可能に形成するとともに絶縁材料にて形成した略Ｕ字状の板状クリップであり、絶縁ワッシャ部材４３に、板状部材４２の上面の一部を覆う上部ワッシャ本体５１と、この上部ワッシャ本体５１に形成することで板状部材４２のボルト貫通孔４７に臨ます上面孔５３と、板状部材４２の下面の一部を覆う下部ワッシャ本体５２と、この下部ワッシャ本体５２に形成することでボルト貫通孔４７に臨ます下面孔５４と、上部ワッシャ本体５１及び下部ワッシャ本体５２を繋ぐ連結部５５と、を備えたものと言える。   5 is a cross-sectional view taken along line 5-5 in FIG. 1. A bolt fastening structure 40 includes a base member (first member) 41 formed of a specific metal material (steel material) and a base member 41 for mounting. A plate member (second member) 42 formed of a metal material (aluminum alloy) different from the specific metal material (steel material), and an insulating washer member interposed between the base member 41 and the plate member 42 43 and a bolt fastening structure that integrally couples the base member 41, the plate-like member 42 and the insulating washer member 43, the insulating washer member 43 can be sandwiched between the plate-like members 42. A substantially U-shaped plate-like clip formed of an insulating material, and an upper washer body 51 that covers a part of the upper surface of the plate-like member 42 and an upper portion of the insulating washer member 43. By forming in the washer body 51, an upper surface hole 53 that faces the bolt through hole 47 of the plate member 42, a lower washer body 52 that covers a part of the lower surface of the plate member 42, and a lower washer body 52 are formed. Thus, it can be said that the lower surface hole 54 facing the bolt through hole 47 and the connecting portion 55 that connects the upper washer main body 51 and the lower washer main body 52 are provided.

例えば、第１の部材（ベース部材）及び第２の部材（板状部材）間の電食、且つ第２の部材（板状部材）及びボルト間の電食を簡易に防止できるとすれば、電食を防止する際に組立の作業性の低下を最小限に止めることができるので好ましいことである。   For example, if it is possible to easily prevent electrolytic corrosion between the first member (base member) and the second member (plate member), and electrolytic corrosion between the second member (plate member) and the bolt, This is preferable because it is possible to minimize a reduction in assembly workability when preventing electrolytic corrosion.

そこで、絶縁ワッシャ部材４３を、板状部材４２に挟み込むことが可能に形成するとともに絶縁材料にて形成した略Ｕ字状の板状クリップに構成し、上部ワッシャ本体５１で板状部材４２の上面を覆い、下部ワッシャ本体５２で板状部材４２の下面を覆い、板状部材４２のボルト貫通孔４７に上面孔５３及び下面孔５４を臨ませ、ベース部材４１に板状部材４２をボルト４４で締結することで、板状部材４２及びベース部材４１間、且つ板状部材４２及びボルト４４間を絶縁するようにした。   Therefore, the insulating washer member 43 is formed into a substantially U-shaped plate-like clip formed so as to be sandwiched between the plate-like members 42 and made of an insulating material, and the upper washer main body 51 is used to form the upper surface of the plate-like member 42. The lower washer body 52 covers the lower surface of the plate member 42, the upper surface hole 53 and the lower surface hole 54 face the bolt through hole 47 of the plate member 42, and the plate member 42 is mounted on the base member 41 with bolts 44. By fastening, the plate-like member 42 and the base member 41 are insulated from each other, and the plate-like member 42 and the bolt 44 are insulated.

すなわち、板状部材４２の上面の一部を覆う上部ワッシャ本体５１と、この上部ワッシャ本体５１に形成することで板状部材４２のボルト貫通孔４７に臨ます上面孔５３と、板状部材４２の下面の一部を覆う下部ワッシャ本体５２と、この下部ワッシャ本体５２に形成することでボルト貫通孔４７に臨ます下面孔５４と、上部ワッシャ本体５１及び下部ワッシャ本体５２を繋ぐ連結部５５と、を備えることで、板状部材４２及びベース部材４１間、且つ板状部材４２及びボルト４４間を絶縁を容易に行うことができる。   That is, an upper washer main body 51 that covers a part of the upper surface of the plate-like member 42, an upper-surface hole 53 that faces the bolt through hole 47 of the plate-like member 42 by being formed in this upper washer main body 51, and the plate-like member 42. A lower washer body 52 that covers a part of the lower surface of the lower washer body, a lower surface hole 54 that faces the bolt through hole 47 by being formed in the lower washer body 52, and a connecting portion 55 that connects the upper washer body 51 and the lower washer body 52, , It is possible to easily insulate between the plate member 42 and the base member 41 and between the plate member 42 and the bolt 44.

この結果、板状部材４２及びベース部材４１間、且つ板状部材４２及びボルト４２間の電食を簡易に防止することができ、電食を防止する際に組立の作業性の低下を最小限に止めることができる。   As a result, electric corrosion between the plate member 42 and the base member 41, and between the plate member 42 and the bolt 42 can be easily prevented, and deterioration in workability of assembly can be minimized when preventing electric corrosion. Can be stopped.

絶縁ワッシャ部材４３に、上部ワッシャ本体５１及び下部ワッシャ本体５２を繋ぐ連結部５５を設けることで、上部ワッシャ本体５１及び下部ワッシャ本体５２を連結することができる。この結果、上部ワッシャ本体５１及び下部ワッシャ本体５２を一体的に形成することができ、部品点数の低減を図ることができる。さらに、電食を防止するためのコストの低減を図ることができる。   By providing the insulating washer member 43 with the connecting portion 55 that connects the upper washer main body 51 and the lower washer main body 52, the upper washer main body 51 and the lower washer main body 52 can be connected. As a result, the upper washer main body 51 and the lower washer main body 52 can be integrally formed, and the number of parts can be reduced. Furthermore, the cost for preventing electrolytic corrosion can be reduced.

ボルト締結構造４０は、上面孔５３及び下面孔５４の周りに、ボルト貫通孔４７のエッジ４７ａを覆う上・下縦壁部（縦壁部）５７，５８を形成したものとも言える。
上面孔５３及び下面孔５４の周りに、ボルト貫通孔４７のエッジ４７ａを覆う上・下縦壁部（縦壁部）５７，５８を形成することで、ボルト貫通孔４７のエッジ４７ａとボルト４４の側面との接触を確実に防止することができる。
この結果、例えば、ボルト４４に絶縁被膜などの表面処理を施す必要はないので、電食防止のためにかかるコストの増加を抑えることができる。 It can be said that the bolt fastening structure 40 is formed by forming upper and lower vertical wall portions (vertical wall portions) 57 and 58 that cover the edge 47a of the bolt through hole 47 around the upper surface hole 53 and the lower surface hole 54.
By forming upper and lower vertical wall portions (vertical wall portions) 57 and 58 covering the edge 47a of the bolt through hole 47 around the upper surface hole 53 and the lower surface hole 54, the edge 47a and the bolt 44 of the bolt through hole 47 are formed. It is possible to reliably prevent contact with the side surface.
As a result, for example, it is not necessary to subject the bolt 44 to a surface treatment such as an insulating coating, so that an increase in cost for preventing electrolytic corrosion can be suppressed.

また、ボルト締結構造４０は、ボルト貫通孔４７に上・下縦壁部（縦壁部）５７，５８を嵌合させるようにしたので、上・下縦壁部５７，５８に位置決め機能を持たすことができる。この結果、ベース部材４１に板状部材４２を締結する際の作業性の向上を図ることができる。   Further, since the bolt fastening structure 40 is configured to fit the upper and lower vertical wall portions (vertical wall portions) 57 and 58 into the bolt through holes 47, the upper and lower vertical wall portions 57 and 58 have a positioning function. be able to. As a result, it is possible to improve workability when the plate member 42 is fastened to the base member 41.

また、ボルト締結構造４０は、ベース部材４１を特定金属材料（鋼材）にて形成し、板状部材４２を特定金属材料とは異なる金属材料（アルミニウム合金）にて形成し、ボルト４４を特定金属材料（鋼材）にて形成し、鋼材とアルミニウム合金との間を板状部材４２で絶縁したので、鋼材（ベース部材４１及びボルト４４）とアルミニウム合金（板状部材４２）との電食を防止することができるとも言える。   In the bolt fastening structure 40, the base member 41 is formed of a specific metal material (steel material), the plate-like member 42 is formed of a metal material (aluminum alloy) different from the specific metal material, and the bolt 44 is formed of the specific metal. Since it is formed of a material (steel material) and the steel material and the aluminum alloy are insulated by the plate-like member 42, the electrolytic corrosion between the steel material (base member 41 and the bolt 44) and the aluminum alloy (plate-like member 42) is prevented. It can be said that it can be done.

図６（ａ），（ｂ）は本発明に係るボルト締結構造のベース部材に板状部材を締結する前の作用説明図である。
（ａ）において、鋼材にて形成したベース部材４１と、このベース部材４１に取付けるためにアルミニウム合金にて形成した板状部材４２と、これらのベース部材４１と板状部材４２との間に介在させる絶縁ワッシャ部材４３と、これらのベース部材４１、板状部材４２及び絶縁ワッシャ部材４３を一体的に結合するボルト４４と、を用意する。 6 (a) and 6 (b) are operation explanatory views before the plate-like member is fastened to the base member of the bolt fastening structure according to the present invention.
In (a), a base member 41 formed of a steel material, a plate-like member 42 formed of an aluminum alloy to be attached to the base member 41, and interposed between the base member 41 and the plate-like member 42 An insulating washer member 43 is prepared, and a base member 41, a plate-like member 42, and a bolt 44 for integrally connecting the insulating washer member 43 are prepared.

（ｂ）において、板状部材４２に絶縁ワッシャ部材４３を矢印ａ１の如く嵌合させる。 これにより、板状部材４２のボルト貫通孔４７のエッジ４７ａ、板状部材４２の上面の一部、板状部材４２の下面の一部を覆うことができる。この結果、板状部材４２にボルト４４が接触することを防止することができる。   In (b), the insulating washer member 43 is fitted to the plate-like member 42 as shown by an arrow a1. Thereby, the edge 47a of the bolt through hole 47 of the plate-like member 42, a part of the upper surface of the plate-like member 42, and a part of the lower surface of the plate-like member 42 can be covered. As a result, the bolt 44 can be prevented from coming into contact with the plate-like member 42.

図７（ａ），（ｂ）は本発明に係るボルト締結構造のベース部材に板状部材を締結する後の作用説明図である。
（ａ）において、ベース部材４１に絶縁ワッシャ部材４３を嵌合済みの板状部材４２を矢印ａ２の如く載置する。板状部材４２に絶縁ワッシャ部材４３を嵌合させたので、ベース部材４１に板状部材４２が接触することはない。 FIGS. 7A and 7B are operation explanatory views after the plate member is fastened to the base member of the bolt fastening structure according to the present invention.
In (a), the plate-like member 42 in which the insulating washer member 43 is fitted to the base member 41 is placed as shown by the arrow a2. Since the insulating washer member 43 is fitted to the plate-like member 42, the plate-like member 42 does not contact the base member 41.

（ｂ）において、ベース部材４１のナット４５に矢印ａ３の如くボルト４４をねじ込むことで、このボルト４４でベース部材４１、板状部材４２及び絶縁ワッシャ部材４３を一体的に結合する。
すなわち、板状部材４２に挟み込むことが可能に形成するとともに絶縁材料にて形成した略Ｕ字状の板状クリップに構成し、上部ワッシャ本体５１で板状部材４２の上面を覆い、下部ワッシャ本体５２で板状部材４２の下面を覆い、板状部材４２のボルト貫通孔４７に上面孔５３及び下面孔５４を臨ませ、ベース部材４１に板状部材４２をボルト４４で締結することで、板状部材４２及びベース部材４１間、且つ板状部材４２及びボルト４４間を絶縁することができる。 In (b), the bolt 44 is screwed into the nut 45 of the base member 41 as shown by the arrow a3, so that the base member 41, the plate-like member 42 and the insulating washer member 43 are integrally coupled by this bolt 44.
That is, it is formed into a substantially U-shaped plate-like clip formed so as to be sandwiched between the plate-like members 42 and made of an insulating material, and the upper washer body 51 covers the upper surface of the plate-like member 42, and the lower washer body 52, the lower surface of the plate member 42 is covered, the upper surface hole 53 and the lower surface hole 54 are exposed to the bolt through holes 47 of the plate member 42, and the plate member 42 is fastened to the base member 41 with the bolts 44. The plate-like member 42 and the base member 41 and the plate-like member 42 and the bolt 44 can be insulated.

図８は本発明に係る第２実施形態のボルト締結構造の分解斜視図であり、ボルト締結構造４０（図３参照）と同一部品は同一符号を付し、詳細な説明は省略する。
ボルト締結構造６０は、特定金属材料としての鋼材にてベース部材（第１の部材）４１形成し、このベース部材４１に取付けるために特定金属材料（鋼材）とは異なる金属材料（アルミニウム合金）にて板状部材（第２の部材）４２形成し、これらのベース部材４１と板状部材４２との間に介在させるために樹脂（絶縁材料）にて絶縁ワッシャ部材６３形成し、これらのベース部材４１、板状部材４２及び絶縁ワッシャ部材６３をボルト４４で一体的に結合するものであり、絶縁ワッシャ部材６３の上部ワッシャ本体７１側に縦壁部７７を設けたものである。 FIG. 8 is an exploded perspective view of the bolt fastening structure according to the second embodiment of the present invention. The same parts as those of the bolt fastening structure 40 (see FIG. 3) are denoted by the same reference numerals, and detailed description thereof is omitted.
In the bolt fastening structure 60, a base member (first member) 41 is formed of a steel material as a specific metal material, and a metal material (aluminum alloy) different from the specific metal material (steel material) is attached to the base member 41. The plate-like member (second member) 42 is formed, and the insulating washer member 63 is formed of resin (insulating material) to be interposed between the base member 41 and the plate-like member 42, and these base members 41, the plate-like member 42 and the insulating washer member 63 are integrally coupled with a bolt 44, and a vertical wall portion 77 is provided on the upper washer main body 71 side of the insulating washer member 63.

図９は本発明に係る第２実施形態のボルト締結構造の断面図であり、詳細には、絶縁ワッシャ部材６３は、板状部材４２に挟み込むことが可能に形成するとともに絶縁材料にて形成した略Ｕ字状の板状クリップにであり、板状部材４２の上面の一部を覆う上部ワッシャ本体７１と、この上部ワッシャ本体７１に形成することで板状部材４２のボルト貫通孔４７に臨ます上面孔７３と、板状部材４２の下面の一部を覆う下部ワッシャ本体７２と、この下部ワッシャ本体７２に形成することでボルト貫通孔４７に臨ます下面孔７４と、上部ワッシャ本体７１及び下部ワッシャ本体７２を繋ぐ連結部７５と、を備え、上面孔７３の周りに、ボルト貫通孔４７のエッジ４７ａを覆う縦壁部７７を形成し、上部ワッシャ本体７１に板状部材４２に嵌合するときの案内部７６を形成したものである。   FIG. 9 is a cross-sectional view of the bolt fastening structure according to the second embodiment of the present invention. Specifically, the insulating washer member 63 is formed so as to be sandwiched between the plate-like members 42 and is formed of an insulating material. It is a substantially U-shaped plate-like clip, and is formed on the upper washer main body 71 that covers a part of the upper surface of the plate-like member 42, and is formed on the upper washer main body 71 to face the bolt through hole 47 of the plate-like member 42. An upper surface hole 73, a lower washer body 72 that covers a part of the lower surface of the plate-like member 42, a lower surface hole 74 that faces the bolt through hole 47 by being formed in the lower washer body 72, an upper washer body 71, and A vertical wall 77 that covers the edge 47a of the bolt through hole 47 around the upper surface hole 73, and is fitted to the plate-like member 42 on the upper washer main body 71. You It is obtained by forming a guide portion 76 of the case.

すなわち、ボルト締結構造６０は、上面孔７３の周りにのみに、ボルト貫通孔４７のエッジ４７ａを覆う縦壁部７７を形成することで、絶縁ワッシャ部材６３の金型を簡易に（シンプルに）形成することができる。この結果、金型費の低減を図ることができる。   That is, in the bolt fastening structure 60, the vertical wall portion 77 that covers the edge 47a of the bolt through hole 47 is formed only around the upper surface hole 73, so that the mold of the insulating washer member 63 can be simplified (simple). Can be formed. As a result, the mold cost can be reduced.

図１０は本発明に係る第３実施形態のボルト締結構造の分解斜視図であり、ボルト締結構造４０（図３参照）と同一部品は同一符号を付し、詳細な説明は省略する。
ボルト締結構造８０は、特定金属材料としての鋼材にてベース部材（第１の部材）４１形成し、このベース部材４１に取付けるために特定金属材料（鋼材）とは異なる金属材料（アルミニウム合金）にて板状部材（具体的にはフロントフェンダである第２の部材）８２形成し、これらのベース部材４１と板状部材８２との間に介在させるために樹脂（絶縁材料）にて絶縁ワッシャ部材８３形成し、これらのベース部材４１、板状部材８２及び絶縁ワッシャ部材８３をボルト４４で一体的に結合するものである。 FIG. 10 is an exploded perspective view of the bolt fastening structure according to the third embodiment of the present invention. The same components as those of the bolt fastening structure 40 (see FIG. 3) are denoted by the same reference numerals, and detailed description thereof is omitted.
The bolt fastening structure 80 is made of a metal material (aluminum alloy) different from the specific metal material (steel material) in order to form the base member (first member) 41 with a steel material as the specific metal material and attach the base member 41 to the base member 41. In order to form a plate-like member (specifically, a second member which is a front fender) 82 and to interpose between the base member 41 and the plate-like member 82, an insulating washer member made of resin (insulating material) 83, and the base member 41, the plate-like member 82, and the insulating washer member 83 are integrally coupled by a bolt 44.

板状部材（第２の部材）８２は、絶縁ワッシャ部材８３を差込むエッジ部８６と、ボルト４４を貫通させるボルト貫通孔８７と、絶縁ワッシャ部材８３を位置決めする位置決め孔８８と、絶縁ワッシャ部材８３を位置決めする切り欠き８９を形成した。図中、８７ａはボルト貫通孔８７のエッジを示す。   The plate-like member (second member) 82 includes an edge portion 86 into which the insulating washer member 83 is inserted, a bolt through hole 87 through which the bolt 44 is passed, a positioning hole 88 for positioning the insulating washer member 83, and an insulating washer member. A notch 89 for positioning 83 was formed. In the figure, reference numeral 87 a denotes an edge of the bolt through hole 87.

図１１は本発明に係る第３実施形態のボルト締結構造の断面図であり、絶縁ワッシャ部材８３は、板状部材８２に挟み込むことが可能に形成するとともに絶縁材料にて形成した略Ｕ字状の板状クリップであり、板状部材８２の上面の一部を覆う上部ワッシャ本体９１と、板状部材８２の下面の一部を覆う下部ワッシャ本体９２と、上部ワッシャ本体９１及び下部ワッシャ本体９２を繋ぐ連結部９５と、を備える。   FIG. 11 is a cross-sectional view of the bolt fastening structure according to the third embodiment of the present invention. The insulating washer member 83 is formed so as to be able to be sandwiched between the plate-like members 82 and is substantially U-shaped formed of an insulating material. An upper washer body 91 that covers a part of the upper surface of the plate member 82, a lower washer body 92 that covers a part of the lower surface of the plate member 82, and an upper washer body 91 and a lower washer body 92. And a connecting portion 95 for connecting the two.

上部ワッシャ本体９１は、板状部材８２のボルト貫通孔８７に臨ます上面孔９３と、
板状部材８２の位置決め孔に嵌合させる位置決めボス９７と、板状部材８２の切り欠きに嵌合させる突起９８と、板状部材８２に嵌合するときの案内部９６と、を形成したものである。 The upper washer main body 91 has an upper surface hole 93 facing the bolt through hole 87 of the plate-like member 82;
A positioning boss 97 to be fitted into the positioning hole of the plate-like member 82, a protrusion 98 to be fitted into the notch of the plate-like member 82, and a guide portion 96 to be fitted to the plate-like member 82. It is.

下部ワッシャ本体９２は、ボルト貫通孔８７に臨ます下面孔９４と、位置決めボス９７を臨ます逃げ孔９９とを形成した。
上面孔９３及び下面孔９４はボルト貫通孔８７よりも小径に形成した孔である。 The lower washer main body 92 has a lower surface hole 94 that faces the bolt through hole 87 and an escape hole 99 that faces the positioning boss 97.
The upper surface hole 93 and the lower surface hole 94 are holes formed to have a smaller diameter than the bolt through hole 87.

ボルト締結構造８０は、板状部材８２に、絶縁ワッシャ部材８３を位置決めする位置決め孔８８と、絶縁ワッシャ部材８３を位置決めする切り欠き８９を形成し、上部ワッシャ本体９１に、板状部材８２の位置決め孔８８に嵌合させる位置決めボス９７と、板状部材８２の切り欠きに嵌合させる突起９８と、を形成したので、ボルト４４の締付け時の板状部材８２の回転止め機能を強固にすることができる。この結果、板状部材８２の位置決め性の向上を図ることができ、組立時の見栄え（セット性）を向上させることができる。   In the bolt fastening structure 80, a positioning hole 88 for positioning the insulating washer member 83 and a notch 89 for positioning the insulating washer member 83 are formed in the plate member 82, and the positioning of the plate member 82 is performed in the upper washer body 91. Since the positioning boss 97 to be fitted into the hole 88 and the projection 98 to be fitted into the notch of the plate-like member 82 are formed, the rotation-preventing function of the plate-like member 82 when tightening the bolt 44 is strengthened. Can do. As a result, the positionability of the plate-like member 82 can be improved, and the appearance (setability) at the time of assembly can be improved.

尚、本発明に係るボルト締結構造は、図２に示すように、ベース部材４１はフロントホイールハウスアッパメンバであり、板状部材４２はフロントフェンダであったが、これに限るものではなく、ベース部材である第１の部材に板状部材（板状の部材のみならずブロック状の部材を含む）である第２の部材をボルトで締結する構造であればよい。   In the bolt fastening structure according to the present invention, as shown in FIG. 2, the base member 41 is a front wheel house upper member and the plate-like member 42 is a front fender. Any structure may be used as long as a second member, which is a plate-like member (including not only a plate-like member but also a block-like member), is fastened to the first member, which is a member, with a bolt.

本発明に係るボルト締結構造は、図５に示すように、板状部材４２を特定金属材料（鋼材）とは異なる金属材料（アルミニウム合金）で形成したが、これに限るものではなく、アルミニウム合金は、アルミニウム若しくはマグネシウム合金であってもよい。   In the bolt fastening structure according to the present invention, as shown in FIG. 5, the plate-like member 42 is formed of a metal material (aluminum alloy) different from the specific metal material (steel material). May be aluminum or a magnesium alloy.

本発明に係るボルト締結構造は、図５に示すように、絶縁ワッシャ部材４３を樹脂にて形成したが、これに限るものではなく、絶縁ワッシャ部材は、絶縁材料ならばよく、紙若しくはゴム等であってもよい。   In the bolt fastening structure according to the present invention, as shown in FIG. 5, the insulating washer member 43 is formed of resin. However, the invention is not limited to this, and the insulating washer member may be an insulating material, such as paper or rubber. It may be.

本発明に係るボルト締結構造は、図５に示すように、ボルト４４にフランジ付のボルトを用いたが、これに限るものではなく、フランジのないボルト若しくはタッピンねじ等を含む締結手段であってもよい。   As shown in FIG. 5, the bolt fastening structure according to the present invention uses a bolt with a flange as the bolt 44, but is not limited to this, and is a fastening means including a bolt without a flange or a tapping screw. Also good.

本発明に係るボルト締結構造は、図５に示すように、ベース部材４１にボルト４４をねじ込むナットを溶接したが、これに限るものではなく、例えば、ねじ孔若しくはバーリングを形成し、ボルト（タッピンねじを含む）をねじ込むように形成したものであってもよい。   In the bolt fastening structure according to the present invention, as shown in FIG. 5, a nut for screwing the bolt 44 is welded to the base member 41. However, the present invention is not limited to this. For example, a screw hole or burring is formed and (Including a screw) may be formed.

本発明に係る第２実施形態のボルト締結構造は、図９に示すように、上面孔７３の周りに縦壁部７７を設けたが、これに限るものではなく、下面孔の周りに縦壁部を設けたものであってもよい。   In the bolt fastening structure of the second embodiment according to the present invention, as shown in FIG. 9, the vertical wall portion 77 is provided around the upper surface hole 73. However, the present invention is not limited to this, and the vertical wall portion is provided around the lower surface hole. A part may be provided.

本発明に係る第３実施形態のボルト締結構造は、図１１に示すように、上部ワッシャ本体９１に位置決めボス９７を形成したが、これに限るものではなく、下部ワッシャ本体に位置決めボスを形成したものであってもよい。   In the bolt fastening structure according to the third embodiment of the present invention, as shown in FIG. 11, the positioning boss 97 is formed on the upper washer body 91. However, the present invention is not limited to this, and the positioning boss is formed on the lower washer body. It may be a thing.

本発明に係るボルト締結構造は、異種金属にて形成した部材の締結構造これに限るものではなく、に採用するのに好適である。   The bolt fastening structure according to the present invention is not limited to the fastening structure of a member formed of a dissimilar metal, and is suitable for being employed.

本発明に係るボルト締結構造を採用した車両の斜視図 である。1 is a perspective view of a vehicle that employs a bolt fastening structure according to the present invention. 本発明に係るボルト締結構造を採用した車両のフロントボデーの斜視図である。1 is a perspective view of a front body of a vehicle that employs a bolt fastening structure according to the present invention. 本発明に係るボルト締結構造の分解斜視図である。It is a disassembled perspective view of the bolt fastening structure which concerns on this invention. 図３の４−４線断面図である。FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. 図１の５−５線断面図である。FIG. 5 is a sectional view taken along line 5-5 of FIG. 本発明に係るボルト締結構造のベース部材に板状部材を締結する前の作用説明図である。It is action | operation explanatory drawing before fastening a plate-shaped member to the base member of the volt | bolt fastening structure which concerns on this invention. 本発明に係るボルト締結構造のベース部材に板状部材を締結する後の作用説明図である。It is action | operation explanatory drawing after fastening a plate-shaped member to the base member of the volt | bolt fastening structure which concerns on this invention. 本発明に係る第２実施形態のボルト締結構造の分解斜視図である。It is a disassembled perspective view of the bolt fastening structure of 2nd Embodiment which concerns on this invention. 本発明に係る第２実施形態のボルト締結構造の断面図である。It is sectional drawing of the bolt fastening structure of 2nd Embodiment which concerns on this invention. 本発明に係る第３実施形態のボルト締結構造の分解斜視図である。It is a disassembled perspective view of the bolt fastening structure of 3rd Embodiment which concerns on this invention. 本発明に係る第３実施形態のボルト締結構造の断面図である。It is sectional drawing of the bolt fastening structure of 3rd Embodiment which concerns on this invention. 従来の基本構成を説明する図である。It is a figure explaining the conventional basic composition.

符号の説明Explanation of symbols

４０…ボルト締結構造、４１…ベース部材（フロントホイールハウスアッパメンバ）、４２…板状部材（フロントフェンダ）、４３…絶縁ワッシャ部材、４４…ボルト、４７…ボルト貫通孔、４７ａ…エッジ、５１…上部ワッシャ本体、５２…下部ワッシャ本体、５３…上面孔、５４…下面孔、５５…連結部、５７，５８…縦壁部（上・下縦壁部）。   DESCRIPTION OF SYMBOLS 40 ... Bolt fastening structure, 41 ... Base member (front wheel house upper member), 42 ... Plate member (front fender), 43 ... Insulating washer member, 44 ... Bolt, 47 ... Bolt through-hole, 47a ... Edge, 51 ... Upper washer main body, 52 ... lower washer main body, 53 ... upper surface hole, 54 ... lower surface hole, 55 ... connecting portion, 57, 58 ... vertical wall portion (upper / lower vertical wall portion).

Claims (2)

特定金属材料にて形成したベース部材と、このベース部材に取付けるために特定金属材料とは異なる金属材料にて形成した板状部材と、これらのベース部材と板状部材との間に介在させる絶縁ワッシャ部材と、これらのベース部材、板状部材及び絶縁ワッシャ部材を一体的に結合するボルトと、からなるボルト締結構造において、
前記絶縁ワッシャ部材は、前記板状部材に挟み込むことが可能に形成するとともに絶縁材料にて形成した略Ｕ字状の板状クリップであり、
前記板状部材の上面の一部を覆う上部ワッシャ本体と、この上部ワッシャ本体に形成することで前記板状部材のボルト貫通孔に臨ます上面孔と、前記板状部材の下面の一部を覆う下部ワッシャ本体と、この下部ワッシャ本体に形成することで前記ボルト貫通孔に臨ます下面孔と、前記上部ワッシャ本体及び下部ワッシャ本体を繋ぐ連結部と、を備えたことを特徴とするボルト締結構造。 A base member made of a specific metal material, a plate-like member made of a metal material different from the specific metal material to be attached to the base member, and insulation interposed between the base member and the plate-like member In a bolt fastening structure comprising a washer member and a bolt that integrally couples the base member, the plate-like member, and the insulating washer member,
The insulating washer member is a substantially U-shaped plate-like clip formed of an insulating material and formed so as to be sandwiched between the plate-like members,
An upper washer body covering a part of the upper surface of the plate member, an upper surface hole facing the bolt through hole of the plate member by forming in the upper washer body, and a part of the lower surface of the plate member A bolt fastening comprising: a lower washer main body for covering; a lower surface hole facing the bolt through-hole by forming in the lower washer main body; and a connecting portion connecting the upper washer main body and the lower washer main body Construction. 前記上面孔及び／若しくは下面孔の周りに、前記ボルト貫通孔のエッジを覆う縦壁部を形成したことを特徴とする請求項１記載のボルト締結構造。
The bolt fastening structure according to claim 1, wherein a vertical wall portion that covers an edge of the bolt through hole is formed around the upper surface hole and / or the lower surface hole.
JP2004181099A 2004-06-18 2004-06-18 Bolt fastening structure Pending JP2006002887A (en)

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Cited By (4)

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CN103104798A (en) * 2011-11-15 2013-05-15 北汽福田汽车股份有限公司 Connection support and metal plate connection structure
JP2015094434A (en) * 2013-11-13 2015-05-18 ジヤトコ株式会社 Fastening structure for dissimilar metal member
JP2015221601A (en) * 2014-05-22 2015-12-10 三菱アルミニウム株式会社 Slip-in prevention apparatus
CN108266617A (en) * 2017-01-03 2018-07-10 三星电子株式会社 Display device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103104798A (en) * 2011-11-15 2013-05-15 北汽福田汽车股份有限公司 Connection support and metal plate connection structure
JP2015094434A (en) * 2013-11-13 2015-05-18 ジヤトコ株式会社 Fastening structure for dissimilar metal member
JP2015221601A (en) * 2014-05-22 2015-12-10 三菱アルミニウム株式会社 Slip-in prevention apparatus
CN108266617A (en) * 2017-01-03 2018-07-10 三星电子株式会社 Display device
KR20180079922A (en) * 2017-01-03 2018-07-11 삼성전자주식회사 Display apparatus
US10306789B2 (en) 2017-01-03 2019-05-28 Samsung Electronics Co., Ltd. Display apparatus
KR102189237B1 (en) 2017-01-03 2020-12-09 삼성전자주식회사 Display apparatus
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