JPH1178964A - Bracket structure of shock absorber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the performance of a shock absorber and to improve the workability in fixing a brake to a casing end. SOLUTION: A bracket which is interposed between a rear axle housing 3 and a shock absorber 1 mounted on the rear axle housing 3 and fixed to a lower side part of the rear axle housing 3 on the side closer to a wheel, is provided with a pair of side plates 4, 5 arranged separately from each other in the vehicle width direction and a connection plate 6 to connect a pair of side plates 4, 5 to form a mounting part of the shock absorber 1. A tool insertion hole 11 is provided in the side plate 4 closer to a wheel among a pair of side plates 4, 5 a tightening tool having a bendable tightening part on its tip part is inserted between a pair of side plates 4, 5. A notched part 17 for relief in which the tightening part can be inserted in the tool insertion hole 11 is provided in the side plate 5 on the side separate from the wheel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a bracket structure for a shock absorber.

[0002]

2. Description of the Related Art A shock absorber bracket is usually fixed to a lower portion of a rear axle housing, and a shock absorber is attached to the bracket via an insulator or the like.

[0003]

In recent years, there has been a demand for improving the performance of the shock absorber by arranging the shock absorber straight in the vehicle height direction. In order to cope with this problem, the bracket is extended to the road surface side so that the shock absorber mounting portion of the bracket is positioned below, and the bracket is extended to the rear axle housing near the wheel in order to avoid interference between the bracket extended to the road surface and the road surface. It is arranged to be.

However, when the bracket is arranged on the side of the rear axle housing close to the wheels, when the brake is fixed to the casing end mounted on the end of the rear axle housing via bolts and nuts, the casing end and the bracket , The tightening tool becomes difficult to enter, and as a result, there is a disadvantage that workability when fixing the brake to the casing end is poor.

SUMMARY OF THE INVENTION The present invention has been made to solve such inconveniences, and not only can the performance of a shock absorber be improved, but also the workability of fixing a brake to a casing end can be improved. It is an object of the present invention to provide a shock absorber bracket structure that can be used.

[0006]

In order to achieve the above object, a bracket structure of a shock absorber according to claim 1 is interposed between a rear axle housing and a shock absorber attached to the rear axle housing, and is close to a wheel. A bracket fixed to the lower side of the rear axle housing on the side, a pair of side plates spaced apart from each other in the vehicle width direction, and a connecting plate connecting the pair of side plates and forming a mounting portion of the shock absorber. A tool insertion hole is provided in a side plate closer to the wheel of the pair of side plates, and a fastening tool having a bendable fastening portion at a tip end of the side plate separated from the wheel is provided between the pair of side plates. And an escape notch for inserting the tightening portion into the tool insertion hole.

According to a second aspect of the present invention, in the first aspect of the present invention, the pair of side plates are fixed to the rear axle housing on the side away from the wheel with respect to the connecting plate, and the tool insertion hole is elongated. It is characterized by having a hole shape.

[0008]

According to the first aspect of the present invention, the bracket is extended to the road surface side so as to correspond to the length of the shock absorber in the vehicle height direction, and the connecting plate is positioned below the bracket. In order to avoid interference with the shock absorber, the bracket can be arranged at the end of the rear axle housing closer to the wheel, so that the shock absorber can be arranged upright in the vehicle height direction. The effect that the performance of this can be improved is obtained.

Further, when the tightening tool is inserted between the pair of side plates and the tightening portion of the tightening tool is inserted into the tool insertion hole, the escape notch serves as an escape portion of the tightening tool. As a result, the fastening part can be smoothly inserted into the tool insertion hole, and as a result, the workability when fixing the brake to the casing end attached to the end of the rear axle housing via bolts and nuts is improved. Is obtained.

According to a second aspect of the present invention, in addition to the first aspect, the pair of side plates are fixed to the rear axle housing on the side away from the wheels with respect to the connecting plate forming the mounting portion of the shock absorber, thereby providing a casing end. As a result, the torch can be easily inserted when welding the casing end and the end of the rear axle housing, and the workability during the welding can be improved. Thus, the effect of facilitating the surface processing of the inner surface of the case end in the vehicle width direction performed after the welding can be obtained.

Further, by making the tool insertion hole into a long hole shape, the tool insertion hole can be made apparently circular from the axle direction, so that the fastening portion can be easily inserted into the tool insertion hole. can get.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 is a view of a bracket structure of a shock absorber as an example of an embodiment of the present invention as viewed from the rear side of a vehicle, FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1, and FIG. FIG. 4 is an explanatory view for explaining the fastening operation, and FIG. 4 is a view as seen from the direction of arrow IV in FIG. Although various brackets are mounted on the rear axle housing in addition to the shock absorber bracket, only the shock absorber bracket is shown in FIG. 1 and other brackets are not shown.

As shown in FIGS. 1 and 2, the bracket 2 of the shock absorber 1 according to this embodiment approaches the wheels (not shown) at both ends of the rear axle housing 3 in the vehicle width direction. It is arranged.

The bracket 2 includes a pair of side plates 4 and 5 spaced apart from each other in the vehicle width direction. The pair of side plates 4 and 5 are fixed to a lower portion of the rear axle housing 3 by welding or the like. It extends obliquely downward toward the rear side in the front-rear direction. The pair of side plates 4 and 5 are both inclined to the wheel side, and the side edges of the lower ends of the pair of side plates 4 and 5 facing the rear side of the vehicle are shock absorbers 1.
Are connected by a connecting plate 6 forming an attaching portion. The reason why the pair of side plates 4 and 5 are inclined to the wheel side is that, in response to a demand that the mounting portion of the shock absorber 1 be arranged on the wheel side, the welded portion between the bracket 2 and the rear axle housing 3 is formed by a casing end described later. This is because there is a welded portion between the rear wheel axle 12 and the rear axle housing 3 so that there is a restriction in approaching the wheel side. Thus, the pair of side plates 4 and 5 are fixed to the rear axle housing 3 on the side away from the wheels with respect to the connecting plate 6.

At a substantially central portion of the connecting plate 6, there is provided a connecting pin 7 projecting substantially horizontally toward the rear side of the vehicle.
A female screw 8 is formed at the tip of the connecting pin 7.
Then, the end of the shock absorber 1 is inserted into the connecting pin 7 via the insulator 1a, and the nut 9 is screwed into the female screw 8 protruding from the end, whereby the shock absorber 1 is arranged straight in the vehicle height direction. It has become so. Portions of the pair of side plates 4 and 5 located above the connecting plate 6 at the side edges facing the rear side of the vehicle are connected by a reinforcing plate 10, and the lower end of the reinforcing plate 10 is continuous with the connecting plate 6. The upper end is fixed to the rear axle housing 3.

The side plate 4 of the pair of side plates 4 and 5 closer to the wheel is provided with a tool insertion hole 11. The tool insertion hole 11 is formed in an elliptical shape that is long in the inclination direction with respect to the side plate 4 inclined toward the wheel side, and has an apparent circular shape from the axle direction, and its axis is welded to the end of the rear axle housing 3. It substantially matches the bolt hole 13 formed in the flange 12 a of the fixed casing end 12.
In this way, by forming an apparent circular shape from the axle direction in the tool insertion hole 11 in accordance with the fastening portion 19 of the tool 20 described later, the insertion of the fastening portion 19 into the tool insertion hole 11 can be performed smoothly. It can be carried out. A brake 14 is fixed to the casing end 12 via a bolt 15 and a nut 16. On the other hand, a substantially notch-shaped notch 17 for escape is formed at a side edge of the side plate 5 on the side away from the wheel toward the front side of the vehicle.

Next, an example of a method of fixing the brake 14 to the casing end 12 fixed to the end of the rear axle housing 3 via the bolt 15 and the nut 16 will be described.

First, as shown in FIGS. 3 and 4, the rear axle housing 3 is turned upside down and the bracket 2 is arranged on the upper side. At this time, the brake 14 is screwed into the bolt 15 inserted into the bolt hole 13 from the outside of the casing end 12 in the vehicle width direction and the tip of the bolt 15 projecting inward in the vehicle width direction of the casing end 12. Nut 16
Is temporarily fixed to the casing end 12.

Next, a fastening tool 20 provided with a fastening portion 19 is inserted between the pair of side plates 4 and 5 from the front side of the vehicle through a universal joint 18 to insert the fastening portion 19 into the tool insertion hole 11. , Whereby the fastening portion 19 is disposed between the bracket 2 and the casing end 12.

At this time, the notch 17 for escape formed on the side edge of the side plate 5 facing the front side of the vehicle serves as an escape for the shaft 21 of the fastening tool 20. Insertion hole 1
1 is smoothly inserted.

Next, the nut 16 temporarily fixed at a position inside the casing end 12 in the vehicle width direction is tightened by the tightening portion 19 of the tightening tool 20, whereby the brake 14 is fixed to the casing end 12. .

In the shock absorber bracket structure having such a structure, the bracket 2 is extended to the road surface side so as to correspond to the length of the shock absorber 1 in the vehicle height direction, and the connecting plate (shock absorber mounting portion) 6 is positioned downward. In addition, since the bracket 2 is arranged at the end of the rear axle housing 3 on the side closer to the wheels to avoid interference between the bracket 2 extending to the road surface and the road surface, the shock absorber 1 is straightened in the vehicle height direction. And the performance of the shock absorber 1 can be improved.

When the fastening tool 20 is inserted between the pair of side plates 4 and 5 and the fastening portion 19 is inserted into the tool insertion hole 11, the escape notch 17 is formed by the shaft portion of the fastening tool 20. Since the recess 21 is a relief portion, the fastening portion 19 can be smoothly inserted into the tool insertion hole 11, and further, the nut 16 temporarily fixed at the position inside the casing end 12 in the vehicle width direction can be smoothly performed. As a result, the casing end 12
The workability when fixing the brake 14 to the vehicle can be improved.

Further, since the pair of side plates 4 and 5 are both inclined to the wheel side and fixed to the rear axle housing 3 on the side away from the wheel with respect to the connecting plate 6, the casing end 12 and the bracket 2 As a result, the torch can be easily inserted when the casing end 12 and the end of the rear axle housing 3 are welded, and the workability at the time of welding can be improved. The surface processing of the inner surface in the vehicle width direction of the case end 12 performed after the welding can be facilitated.

Furthermore, since the escape notch 17 is formed at the side edge of the side plate 5 facing the front side of the vehicle, the balance of the strength of the bracket 2 can be maintained.

[Brief description of the drawings]

FIG. 1 is a diagram showing a bracket structure of a shock absorber as an example of an embodiment of the present invention, as viewed from a rear side of a vehicle.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is an explanatory view for explaining a tightening operation of a nut by a tightening tool.

FIG. 4 is a view as seen from a direction of an arrow IV in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Shock absorber 2 ... Bracket 3 ... Rear axle housing 4, 5 ... Side plate 6 ... Connecting plate (shock absorber mounting part) 11 ... Tool insertion hole 17 ... Notch for escape 18 ... Universal joint 19 ... Tightening part 20 ... Tightening Attached tool

Claims (2)

[Claims] 1. A bracket interposed between a rear axle housing and a shock absorber attached to the rear axle housing, the bracket being fixed to a lower portion of the rear axle housing on a side close to a wheel and separated from each other in a vehicle width direction. A pair of side plates arranged, a connecting plate connecting the pair of side plates to form a mounting portion of the shock absorber, and providing a tool insertion hole in a side plate closer to a wheel of the pair of side plates; An escape notch for inserting a tightening tool having a bendable tightening portion at a distal end portion of the side plate separated from the pair of side plates so that the tightening portion can be inserted into the tool insertion hole. The bracket structure of the shock absorber characterized by being provided. 2. The shock according to claim 1, wherein the pair of side plates are fixed to the rear axle housing on a side away from the wheel with respect to the connection plate, and the tool insertion hole has an elongated hole shape. Absorber bracket structure.