JP2009143351A - Disk brake mounting part structure for suspension - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk brake mounting part structure for a suspension capable of improving the rigidity of disk brake mounting parts at low cost without increasing the weight of a support plate as a whole. <P>SOLUTION: In the disk brake mounting part structure for the suspension, at least the two disk brake mounting parts 30a, 30b having mounting holes 32a, 32b to a disk brake are arranged at a predetermined interval at an end of a spindle support plate 18 mounted to an end of the torsion beam type suspension. A reinforcement rib 34 is formed by cutting, in positions of outer ends of the disk brake mounting parts 30a, 30b, the spindle support plate 18 located between the disk brake mounting parts 30a, 30b and bending the spindle support plate 18 located between the disk brake mounting parts 30a, 30b outwardly to form a convex shape. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a structure of a disc brake mounting portion of a suspension, and more particularly to a structure of a disc brake mounting portion of a suspension for improving rigidity in a disc brake mounting portion of a suspension.

  In general, in a suspension, particularly in a torsion beam type suspension, a trailing arm extending in the longitudinal direction of the vehicle body is connected to both ends of the torsion beam extending in the width direction of the vehicle body, and one end of the trailing arm is connected to the trailing arm support portion. The other end is connected to the wheel via a spindle support plate that supports the wheel spindle.

  The trailing arm and the spindle support plate are integrated by abutting the end of the trailing arm against the spindle support plate and welding the entire circumference of the trailing arm to the spindle support plate.

Further, the spindle support plate is attached to the wheel by bolting a plurality of disc brake mounting portions protruding outward from the welded portion to the disc brake (see Patent Document 1 and FIG. 8).
JP 2005-81905 A

  In such a torsion beam type suspension, since the disc brake mounting portion protrudes outward from the welded portion of the spindle support plate, the rigidity of the disc brake mounting portion tends to decrease.

  For this reason, until now, the press support plate has been used as the spindle support plate to ensure the rigidity of the disc brake mounting portion.

  However, even if the disc brake mounting portion is made thick, it is difficult to easily cope with abnormal noise (so-called squeal) generated in the vehicle due to insufficient rigidity.

  In addition, to increase the rigidity of the spindle support plate to improve rigidity, the plate pressure of unnecessary parts other than the disc brake mounting part also increases, which increases the overall mass and the cost. It will be expensive.

  An object of the present invention is to provide a disc brake mounting portion structure for a suspension that can increase the rigidity of the disc brake mounting portion at a low cost without increasing the weight of the entire support plate.

In order to achieve the above object, the disc brake mounting portion structure of the suspension of the present invention has a disc brake mounting portion with mounting holes for mounting at least two disc brakes at the end of the support plate attached to the end of the suspension at a predetermined interval. A disc brake mounting part structure of a suspension having
Reinforcing rib portion in which the support plate between the disc brake mounting portions is cut at the outer end portion position of the disc brake mounting portion, and the support plate between the disc brake mounting portions is bent so as to become a medium height toward the outside. Is formed.

  According to the present invention, the reinforcing rib portion is formed so that the support plate between the disc brake mounting portions is bent toward the outside toward the middle height, thereby increasing the thickness of the entire support plate by the reinforcing rib portion. In addition, the rigidity of the disc brake mounting portion can be improved at a low cost without increasing the weight.

  Further, since the reinforcing rib portion can be processed in a progressive die for press processing, it can be processed at a lower cost.

  In the present invention, the reinforcing rib portion can be formed such that the base end portion is bent in an arc shape.

  By setting it as such a structure, rigidity can be improved more by forming the base end part of a reinforcement rib part in circular arc shape compared with the case of linear form.

  In the present invention, a mounting for receiving the disc brake mounting portion is attached to a position corresponding to the disc brake mounting portion of the disc brake, and a reinforcement for receiving the inner surface side of the reinforcing rib portion is provided to the position corresponding to the reinforcing rib portion of the mounting. A receiving part can be formed.

  By adopting such a configuration, the rigidity of the mounting on the disc brake side is also increased, and it is expected that the rigidity of the reinforcing rib portion is improved and the rigidity is further improved.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 to 3 are views showing a torsion beam suspension using a suspension mounting structure according to an embodiment of the present invention.

  FIG. 1 is a schematic view of a torsion beam suspension. The torsion beam suspension 10 includes a torsion beam 12, a trailing arm 14, a trailing arm support portion 16, and a spindle support plate 18 as a support plate.

  The torsion beam 12 is arranged so as to extend in the width direction of the vehicle body, and absorbs the vertical movement of a wheel (not shown) by the return action of the torsion beam torsion.

  The trailing arm 14 is in the form of a hollow pipe and is composed of a pair of left and right members connected to both ends of the torsion beam 12 and extending in the front-rear direction of the vehicle body (not shown), and between the pair of trailing arms 14 and the torsion beam 12. A reinforcing gusset 20 is provided.

  A spring seat 22 that supports the lower end of a suspension spring (not shown) is provided between the intermediate portion of the trailing arm 14 and the gusset 20.

  The trailing arm support 16 is attached to one end (front end) of the trailing arm 14, and the trailing arm 14 swings up and down on the vehicle body via a rubber bush joint (not shown) housed in the trailing arm support 16. It is designed to be movably connected.

  The spindle support plate 18 is attached to the other end (rear end) of the trailing arm 14.

  As shown in FIG. 2, the spindle support plate 18 is attached to the trailing arm 14 by abutting the rear end of the trailing arm 14 against the spindle support plate 18 so that the entire circumference of the trailing arm 14 is moved to the spindle support plate. By welding to 18 and forming the annular welded portion 24, sufficient strength is provided.

  The spindle support plate 18 supports a wheel spindle (not shown), and a spindle mounting hole 26 is formed in the approximate center of the spindle support plate 18.

  Further, on the spindle support plate 18, disk brake mounting portions 30a and 30b for mounting the spindle support plate 18 to a disk brake of a wheel (not shown) are formed on the outside of the welded portion 24 at two predetermined intervals. Attachment holes 32a and 32b for attachment to the disc brake are formed in the respective disc brake attachment portions 30a and 30b.

  The disc brake mounting portions 30a and 30b are normally protruded from the spindle support plate 18 and have low rigidity. Therefore, the disc brake mounting portions 30a and 30b are adapted to increase the plate pressure of the spindle support plate 18. Nevertheless, the rigidity is insufficient and it is not possible to easily deal with abnormal noises generated in the vehicle. Therefore, if the thickness of the spindle support plate 18 is increased, it is unnecessary to use other than the disc brake mounting portions 30a and 30b. As a result, the thickness of such a portion increases, the overall mass increases, and the cost increases.

  Therefore, in the present embodiment, the spindle support plate 18 at the position between the disc brake mounting portions 30a and 30b is cut at the outer end position of the disc brake mounting portions 30a and 30b, as shown in FIGS. The reinforcing rib portion 34 is formed by bending the spindle supporting plate 18 between the disc brake mounting portions 30a and 30b so that the spindle supporting plate 18 is bent toward the middle. Without increasing the thickness, without increasing the weight, the rigidity of the disc brake mounting portions 30a, 30b is improved at a low cost.

  Further, since the reinforcing rib portion 34 can be processed in a progressive die for press processing, it can be processed at a lower cost.

  Furthermore, the base end portion 36 of the reinforcing rib portion 34 is bent in an arc shape, so that the rigidity at the center position is further increased as compared with the case of the linear shape.

  In this case, as shown in FIG. 3, a mounting 38 for receiving the disc brake mounting portions 30a, 30b is attached to the positions corresponding to the disc brake mounting portions 30a, 30b of the disc brake. The shape may be bent according to the shape of the mounting 38 on the disc brake side.

  Further, since the reinforcing rib portion 34 is bent so as to become a middle height toward the outside, a gap is generated on the mounting 38 side, and the reinforcing rib portion 34 is located at the position corresponding to the reinforcing rib portion 34 of the mounting 38. The reinforcement receiving part 40 which receives the inner surface side of 34 is formed.

  By forming the reinforcing receiving portion 40 on the mounting 38 in this way, the rigidity of the mounting 38 on the disc brake side is also increased, and the rigidity of the reinforcing rib portion 34 can be improved and further rigidity can be expected.

  The present invention is not limited to the above-described embodiment, and can be modified into various forms within the scope of the gist of the present invention.

  For example, in the above-described embodiment, the structure of the attachment portion of the torsion beam type suspension has been described. However, the present invention is not limited to this example, and can be applied to various suspension attachment portion structures.

  Moreover, although the case where there are two disc brake mounting portions on the right and upper sides has been described, the position and number of the disc brake mounting portions are not limited.

1 is a schematic perspective view of a torsion beam suspension according to an embodiment of the present invention. FIG. 2 is an enlarged front view of a disc brake mounting portion in FIG. 1. It is an expanded sectional view which follows the III-III line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Torsion beam type suspension 12 Torsion beam 14 Trailing arm 16 Trailing arm support part 18 Spindle support plate 24 Welding part 30a, 30b Disc brake attachment part 32a, 32b Mounting hole 34 Reinforcement rib part 36 Base end part 38 Mounting 40 Reinforcement receiving part

Claims (3)

A disc brake mounting portion structure for a suspension having a disc brake mounting portion with mounting holes for mounting at least two disc brakes at a predetermined interval at an end portion of a support plate attached to an end portion of the suspension,
Reinforcing rib portion in which the support plate between the disc brake mounting portions is cut at the outer end position of the disc brake mounting portion, and the support plate between the disc brake mounting portions is bent so as to become a middle height toward the outside. A disc brake mounting portion structure for a suspension, characterized in that is formed. In claim 1,
A disk brake mounting portion structure for a suspension, wherein the reinforcing rib portion has a base end portion bent in an arc shape. In claim 1 or 2,
A mounting for receiving the disc brake mounting portion is attached to the disc brake mounting portion corresponding position of the disc brake,
A disc brake mounting portion structure for a suspension, wherein a reinforcing receiving portion for receiving the inner surface side of the reinforcing rib portion is formed at a position corresponding to the reinforcing rib portion of the mounting.

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