JPH0667266U - Vehicle bump stopper - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To reduce the equipment cost and maintenance cost of the bump stopper that is mounted on the underside of the chassis frame to reduce the impact when the axle is displaced upward. A stopper member 28 is manufactured by baking and fixing a bump rubber 24 on a simple flat plate, and the stopper member is detachably attached to a lower surface of a bracket 22 mounted on a chassis frame 10 by a bolt 26.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bump stopper for a vehicle such as a truck.

[0002]

[Prior art]

 A typical structure of a bump stopper for a rear axle in a conventional truck will be described with reference to FIG. 1 showing an embodiment of the present invention for convenience and with reference to FIGS. 3 and 4. In the figure, reference numeral 10 is a pair of left and right side rails 12 each extending in the front-rear direction of the vehicle body and forming a groove wall in cross section, and a plurality of cross rails arranged in the vehicle width direction and having both ends fixed to the side rails 12. A chassis frame composed of a member (not shown), 14 is a rear axle housing mounted on the chassis frame 10 via an appropriate suspension spring such as a leaf spring device (not shown), and 16 is a rear axle housing 14. The bump stopper is arranged below the facing side rails 12.

The detailed structure of the conventional bump stopper 16 is as shown in the side view of FIG. 3 and the plan view of FIG. 4, and a fixing tool such as a bolt is attached to the web 12W of the side rail 12 of the chassis frame. Bracket 22 composed of an L-shaped member 18 which is detachably mounted by means of a groove member 20 fixed to the bottom surface of the L-shaped member 18 by welding or the like, and a rear axle housing 14 of the groove member 20. And a bump rubber 24 having an appropriate shape such as a kamaboko shape, which is directly baked and fixed to the bottom surface facing the. (Note that the bump stopper 16 in FIG. 1 is based on the present invention and is different from the conventional bump stopper described above.)

As is well known in the art, when the truck or the like travels on a rough road or an uneven terrain, the bump stopper 16 causes the rear axle housing 14 to rise toward the chassis frame 10 and to It is provided for the purpose of preventing damage to the side rails 12 and / or the rear axle housing 14 caused by a collision and improving riding comfort.

The conventional bump stopper 16 accommodates the bracket 22 as a vulcanizing mold for the baking work because the bump rubber 24 is directly baked and fixed to the lower surface of the groove-shaped member 20 of the bracket 22. A large mold is required, and the bracket 22 itself has a sufficiently high manufacturing accuracy to prevent the rubber from flowing through the gap when the bracket 22 is inserted into the mold and vulcanized. However, the manufacturing costs of both the baking mold and the bracket 22 are significantly high, and the price of the bump stopper 16 is eventually high. Further, the bump rubber 24 of the bump stopper 16 is gradually worn away during the operation of the vehicle and the shock absorbing function is reduced. Therefore, it is necessary to replace the bump rubber 24 frequently. Since it is necessary to replace the entire bump stopper 16, there is a disadvantage that the maintenance cost increases.

[0006]

[Problems to be solved by the device]

 The present invention has been made in view of the above circumstances, and an object thereof is to provide a device of this type which is significantly lower in manufacturing cost and maintenance cost than the conventional bump stopper.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention comprises a bracket mounted on a chassis frame by bolts and the like, and a stopper member having a bump rubber baked and fixed on a flat plate, the stopper member facing the axle of the bracket. We propose a bump stopper for vehicles, which is characterized in that it is detachably attached by means of bolts and the like.

[0008]

[Action]

 According to the configuration of the present invention, since the bump rubber is baked and fixed to a flat plate separate from the bracket, the baking mold can be made small and simple, and the bracket manufacturing accuracy can be lowered. In addition, only bump rubber can be separated and replaced from the bracket.

[0009]

【Example】

 Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. (It should be noted that the description of the conventional bump stopper already described with reference to FIG. 1 will be omitted.) According to the present invention, the bump stopper 16 faces the bracket 22 and the rear axle housing 14 of the bracket 22. And a stopper member 28 that is detachably attached to the end surface by a bolt 26.

The stopper member 28 is composed of a simple rectangular flat plate 30 and a bump rubber 24 that is baked and fixed onto the flat plate 30, while the bracket 22 includes a bolt 30 and the like on the web 12W of the side rail 12. Of the L-shaped member 18 and the groove-shaped member 20 fixed to the L-shaped member 18 by welding or the like. A number of reinforcing partitions 32 are fixed by welding or the like.

According to the configuration of the present invention, since the bump rubber 24 is baked and fixed to the flat plate 30 which is separate from the bracket 22, the vulcanization mold is small and simple and inexpensive. Since the groove-shaped member 20 and the L-shaped member 18 are not required to have high manufacturing precision, the price of the bump stopper 16 can be remarkably reduced as compared with the conventional case. Further, when the bump rubber 24 is worn out and needs to be replaced, it is sufficient to remove the bolt 26 and replace only the stopper member 18, and the bracket 22 does not need to be replaced. It can be reduced.

In the above embodiment, the bump rubber 24 has a kamaboko shape, but the cross-sectional shape is changed to a sawtooth shape, a trapezoidal shape or any other shape according to the shape of the upper side surface of the rear axle housing 14 which cooperates. can do. Further, the height h of the groove-shaped member 20 of the bracket 24 (see FIG. 2) is appropriately selected depending on the relative arrangement of the rear axle housing 14 with respect to the side rail 12. If the height h of the groove-shaped member 20 is sufficiently small to interfere with the shaft end of the bolt 26, a through hole (not shown) for preventing interference should be formed in the lateral flange 18 'of the L-shaped member 18. Good. Further, it is clear that the present invention can be applied not only to the bump stopper 16 that cooperates with the illustrated rear axle housing 14 but also to the bump stopper for the front axle.

Reference numeral 34 in the drawing is a stiffener interposed inside the side rail 12 for reinforcement, and reference numeral 36 is a differential housing provided in a substantially central portion of the rear axle housing 14 in the single width direction.

[0014]

[Effect of device]

 As described above, the vehicle bump stopper according to the present invention includes a bracket mounted on the chassis frame by bolts and the like, and a stopper member having a bump rubber baked and fixed on a flat plate. It is characterized in that it is detachably attached to the end surface of the bracket facing the axle with a bolt or the like, and it is possible to provide a bump stopper with significantly lower manufacturing costs and maintenance costs compared to conventional similar equipment. It is extremely useful in practice.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

2 is a front view of the device shown in FIG. 1. FIG.

FIG. 3 is a side view of a conventional bump stopper.

FIG. 4 is a front view of the bump stopper shown in FIG.

[Explanation of symbols]

 10 Chassis frame 12 Side rails 14 Rear axle housing 16 Bump stopper 22 Bracket 24 Bump rubber 28 Stopper member 30 Flat plate

Claims (1)

[Scope of utility model registration request] 1. A bracket mounted on a chassis frame with bolts and the like, and a stopper member having a bump rubber baked and fixed on a flat plate, the stopper member being detachable by bolts or the like on the end face of the bracket facing the axle. A bump stopper for a vehicle, characterized by being mounted on a vehicle.