JP2005186876A

JP2005186876A - Mounting structure of suspension

Info

Publication number: JP2005186876A
Application number: JP2003433746A
Authority: JP
Inventors: Yorito Takemoto; 頼人武本; Hidenori Takeuchi; 秀紀竹内
Original assignee: Mitsubishi Motors Corp
Current assignee: Mitsubishi Motors Corp
Priority date: 2003-12-26
Filing date: 2003-12-26
Publication date: 2005-07-14

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of a suspension assuring a high sealing performance while the burden with operations is reduced. SOLUTION: The mounting structure is to mount the suspension on a panel member 1 of a vehicle body through a plate-form reinforcing member 2, wherein the panel member 1 and the reinforcing member 2 are joined together in such an arrangement that mounting holes 10 and 11 formed in the members 1 and 2 are overlapped one over the other, and at least the inside surfaces 10a and 11a of the mounting holes joined are welded. The welding process should be of projection type in which a surface unevenness part 13 is formed on at least either of the joining surface 1A in the neighborhood of the mounting hole in the panel member 1 and the joining surface 2A in the neighborhood of the mounting hole in the reinforcing member 2. COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、車両側に対するサスペンションの取付構造に関し、特に補強部材を介して取付けるものに関する。 The present invention relates to a suspension mounting structure for a vehicle side, and more particularly, to a suspension mounting structure via a reinforcing member.

従来のサスペンションの取付構造は、取付剛性を確保するために、車体側のパネル部材に板状の補強部材を介して装着している。パネル部材及び補強部材には、それぞれ取付孔が形成されていて、これら取付孔近傍の接合面にスポットシーラーなどの液状のシール部材を塗布し、両取付孔を重合させて孔の周囲をスポット溶接で接合している。サスペンションの取付構造において補強部材を用い、レーザー溶接したものとして、例えば、特許文献１に記載のものが挙げられる。 A conventional suspension mounting structure is mounted on a panel member on the vehicle body via a plate-shaped reinforcing member in order to ensure mounting rigidity. Mounting holes are formed in the panel member and the reinforcing member, respectively, and a liquid seal member such as a spot sealer is applied to the joint surface in the vicinity of these mounting holes, and both mounting holes are overlapped to spot weld the holes. It is joined with. Examples of the suspension mounting structure using a reinforcing member and laser-welded include those described in Patent Document 1.

特開２００３−１３７１３２号公報JP 2003-137132 A

しかしながら、従来の車体側のパネル部材と補強部材とを接合する場合、接合面において水が浸入するおそれがある。また、特許文献１の記載の構造においても、シール部材を接合面に塗布する必要があり、シール部材に塗布ムラがあると、接合面に水が浸入していまい、接合面に錆びが発生し、耐久性が損なわれるおそれがある。また、シール部材の塗布状態の確認もシール性能を高めるためには非常に重要な作業のため、作業者の負担も大きく、作業時間を要していた。 However, when the conventional panel member and the reinforcing member on the vehicle body side are joined, water may enter the joining surface. Also in the structure described in Patent Document 1, it is necessary to apply the seal member to the joint surface. If there is uneven application of the seal member, water will not enter the joint surface and rust will occur on the joint surface. Durability may be impaired. In addition, the confirmation of the application state of the seal member is a very important operation for improving the sealing performance, so that the burden on the operator is large and the operation time is required.

本発明は、作業負担を軽減しなからシール性を高くすることが可能なサスペンションの取付構造を提供することを、その目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide a suspension mounting structure that can improve the sealing performance without reducing the work load.

上記目的を達成するため、請求項１では、車体側のパネル部材に板状の補強部材を介して装着するサスペンションの取付構造において、パネル部材及び前記補強部材にそれぞれ形成した取付孔を重合させるように、パネル部材と前記補強部材とを接合し、少なくとも接合された取付孔の内周面を溶接したことを特徴としている。 In order to achieve the above object, according to a first aspect of the present invention, in the suspension mounting structure that is mounted on the panel member on the vehicle body via the plate-shaped reinforcing member, the mounting holes respectively formed in the panel member and the reinforcing member are overlapped. Further, the panel member and the reinforcing member are joined, and at least the inner peripheral surface of the joined mounting hole is welded.

請求項２の発明では、請求項１記載のサスペンションの取付構造において、パネル部材の取付孔近傍の接合面又は補強部材の取付孔近傍の接合面の少なくとも一方に凹凸部を形成し、プロジェクション溶接で接合したことを特徴としている。 According to a second aspect of the present invention, in the suspension mounting structure according to the first aspect, an uneven portion is formed on at least one of the joint surface in the vicinity of the mounting hole of the panel member or the joint surface in the vicinity of the mounting hole of the reinforcing member. It is characterized by being joined.

請求項３の発明では、請求項２記載のサスペンションの取付構造において、凹凸部をプレス加工で形成したことを特徴としている。 According to a third aspect of the present invention, in the suspension mounting structure according to the second aspect, the concavo-convex portion is formed by press working.

本発明によれば、パネル部材及び補強部材にそれぞれ形成した取付孔を重合させるようにパネル部材と補強部材とを接合し、少なくとも接合された取付孔の内周面を溶接するので、シール部材を塗布しなくても取付孔側から接合面への水の浸入が防止され、作業負担を軽減しなからシール性を高めることができる。
本発明によれば、溶接にはプロジェクション溶接を用いるので、取付孔のような狭い部位でもアーク溶接に比べて良好な接合状態を得られ、より高いシール性を確保することができる。
本発明によれば、取付孔近傍の接合面の凹凸部をプレス加工で形成するので、凹凸部を一度に形成することができ、作業負担をより軽減することができる。 According to the present invention, the panel member and the reinforcing member are joined so as to superimpose the mounting holes formed in the panel member and the reinforcing member, respectively, and at least the inner peripheral surface of the joined mounting hole is welded. Even if it is not applied, water can be prevented from entering the joint surface from the mounting hole side, and the work load can be reduced, so that the sealing performance can be improved.
According to the present invention, since projection welding is used for welding, it is possible to obtain a better joined state than arc welding even in a narrow part such as a mounting hole, and to ensure higher sealing performance.
According to the present invention, since the concavo-convex portion of the joint surface in the vicinity of the attachment hole is formed by pressing, the concavo-convex portion can be formed at a time, and the work burden can be further reduced.

以下、本発明の実施の形態について図面を用いて説明する。
本形態で説明するサスペンションの取付構造は、車両のリア側に適用したものである。図１において、符号１は車体側のパネル部材としてのリアホイルハウスインナーパネル（以下「インナーパネル」と記す）を示す。このインナーパネル１は、図示しないリアサイドメンバーに接合されている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The suspension mounting structure described in this embodiment is applied to the rear side of the vehicle. In FIG. 1, reference numeral 1 denotes a rear wheel house inner panel (hereinafter referred to as “inner panel”) as a panel member on the vehicle body side. The inner panel 1 is joined to a rear side member (not shown).

インナーパネル１の接合面となる外面１Ａには、板状の補強部材としての板金製のリンファースアブソーバー２が、その接合面となる内面２Ａ側で接合される。リンファースアブソーバー２は、インナーパネル１よりも板厚とされている。インナーパネル１及びリンファースアブソーバー２には、図２に示すように、取付孔１０，１１がそれぞれ形成されている。これら取付孔１０，１１は、直径３０〜４０ｍｍ程度の小さな孔で、互いの位置が重合するようにインナーパネル１とリンファースアブソーバー３とを接合して一体化することで、図３に示すように強度のある取付部１２を構成する。 The outer surface 1A, which is a joining surface of the inner panel 1, is joined with a sheet metal lymph absorber 2 as a plate-like reinforcing member on the inner surface 2A side, which is the joining surface. The Lymphers absorber 2 is thicker than the inner panel 1. As shown in FIG. 2, mounting holes 10 and 11 are formed in the inner panel 1 and the Lymphers absorber 2, respectively. These mounting holes 10 and 11 are small holes having a diameter of about 30 to 40 mm, and the inner panel 1 and the phosphorous absorber 3 are joined and integrated so that their positions overlap each other, as shown in FIG. The attachment portion 12 having a high strength is configured.

図１に示すように、取付部１２には、サスペンションを構成するショックアブソーバー４の上部に形成された取付ボルト５がリンファースアブソーバー２の外面２Ｂ側からインナーパネル１の内面１Ｂに向かって挿通されていて、ナット９が内面１Ｂ側から締め込まれることで、取付部１２に装着固定されている。ナット９とインナーパネル１の間には、取付部１２と取付けボルト５との隙間を埋めるためのキャップ状のカバー８が介装されている。すなわち、ショックアブソーバー４（サスペンション）は、リンファースアブソーバー２を介してインナーパネル１に装着されている。符号６は、ショックアブソーバー４の外周に巻装されるペンションションスプリングを示す。 As shown in FIG. 1, a mounting bolt 5 formed on an upper portion of a shock absorber 4 constituting a suspension is inserted into the mounting portion 12 from the outer surface 2B side of the phosphorus absorber 2 toward the inner surface 1B of the inner panel 1. The nut 9 is tightened from the inner surface 1B side, and is fixedly attached to the mounting portion 12. Between the nut 9 and the inner panel 1, a cap-shaped cover 8 for interposing a gap between the mounting portion 12 and the mounting bolt 5 is interposed. That is, the shock absorber 4 (suspension) is attached to the inner panel 1 via the lymph absorber 2. Reference numeral 6 denotes a pension spring wound around the outer periphery of the shock absorber 4.

取付孔１１の近傍の接合面２Ａには、図２，図４に示すように、凹凸部１３が形成されている。この凹凸部１３は、プロジェクション溶接をする際に用いる凹凸であって、取付孔１１の周面に沿ってプレス加工によって一度に形成されている。 As shown in FIGS. 2 and 4, an uneven portion 13 is formed on the joint surface 2 A in the vicinity of the mounting hole 11. The concavo-convex portion 13 is concavo-convex used when performing projection welding, and is formed along the peripheral surface of the mounting hole 11 by pressing.

図３に示すように、リンファースアブソーバー２は、その上端２Ｃと下端２Ｄをインナーパネル１にスポット溶接されることで、インナーパネル１に対して各接合面１Ａ，２Ａを接合させた状態で位置決めされている。取付孔１０，１１は、この接合された状態において、その内周面１０ａ，１１ａをプロジェクション溶接されることで一体化される。上端２Ｃ及び下端２Ｄとインナーパネル１との各接合部には、シール部材としてのシーラー１４がその縁によって連続して塗布されている。 As shown in FIG. 3, the Lymphers absorber 2 is positioned in a state where the joining surfaces 1 A and 2 A are joined to the inner panel 1 by spot welding the upper end 2 C and the lower end 2 D to the inner panel 1. Has been. In the joined state, the mounting holes 10 and 11 are integrated by projecting the inner peripheral surfaces 10a and 11a thereof. A sealer 14 as a seal member is continuously applied to each joint portion between the upper end 2C and the lower end 2D and the inner panel 1 by the edge.

このように、板厚の異なるインナーパネル１とリンファースアブソーバー２とを、互いの取付孔１０，１１を重合させて接合し、径の小さな取付孔１０，１１の内周面１０ａ，１１ａをプロジェクション溶接することで、従来のように、シール部材を接合面１Ａまたは２Ａに塗布しなくても取付孔１０，１１側、すなわち、取付部１２側のシール性が確保されるので、接合面への水の浸入が防止される。このため、作業負担を軽減しなからシール性を高めることができる。 In this way, the inner panel 1 and the Lymphorth absorber 2 having different thicknesses are joined together by overlapping the mounting holes 10 and 11, and the inner peripheral surfaces 10a and 11a of the mounting holes 10 and 11 having a small diameter are projected. By welding, the sealing performance on the mounting holes 10 and 11 side, that is, the mounting portion 12 side is ensured without applying a sealing member to the joining surface 1A or 2A as in the conventional case. Infiltration of water is prevented. For this reason, the sealing performance can be improved without reducing the work load.

一般にプロジェクション溶接を行う場合、接合面に凹凸部を形成するのに手間を要するが、本形態では、プレス加工によって一度に形成するので、その手間も少なく作業負担をより軽減することができる。本形態では、凹凸部１３をリンファースアブソーバー２の取付孔１１近傍の接合面２Ａに形成したが、インナーパネル１の取付孔１０近傍の接合面１Ａに形成してもよい。 In general, when projection welding is performed, it takes time to form the concavo-convex portion on the joint surface, but in this embodiment, since it is formed at one time by pressing, the labor is reduced and the work load can be further reduced. In this embodiment, the concavo-convex portion 13 is formed on the joint surface 2A in the vicinity of the attachment hole 11 of the Linface absorber 2, but may be formed on the joint surface 1A in the vicinity of the attachment hole 10 of the inner panel 1.

本発明の一実施の形態を示すサスペンションの取付構造を示す断面図である。It is sectional drawing which shows the attachment structure of the suspension which shows one embodiment of this invention. インナーパネルと補強部材の構成を示す拡大断面図である。It is an expanded sectional view which shows the structure of an inner panel and a reinforcement member. インナーパネルと補強部材とを接合した状態を補強部材側から見た斜視図である。It is the perspective view which looked at the state which joined the inner panel and the reinforcement member from the reinforcement member side. 凹凸部の構成を示す平面図である。It is a top view which shows the structure of an uneven | corrugated | grooved part.

Explanation of symbols

１車体側のパネル部材
１Ａ、２Ａ接合面
２板状の補強部材
４サスペンション
１０，１１取付孔
１０ａ、１１ａ内周面
１３凹凸部
DESCRIPTION OF SYMBOLS 1 Car body side panel member 1A, 2A Joint surface 2 Plate-shaped reinforcement member 4 Suspension 10,11 Mounting hole 10a, 11a Inner peripheral surface 13 Concavity and convexity

Claims

In the suspension mounting structure that is mounted on the panel member on the vehicle body via a plate-shaped reinforcing member,
Suspension characterized in that the panel member and the reinforcing member are joined so that the mounting holes formed in the panel member and the reinforcing member are superposed, and at least the inner peripheral surface of the joined mounting hole is welded. Mounting structure.

The suspension mounting structure according to claim 1,
A suspension mounting structure, wherein an uneven portion is formed on at least one of a joint surface in the vicinity of the mounting hole of the panel member or a joint surface in the vicinity of the mounting hole of the reinforcing member, and the suspension is joined by projection welding.

In the suspension mounting structure according to claim 2,
The suspension mounting structure, wherein the uneven portion is formed by press working.