JP2000313358A - Buffer member for motor vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a buffer member for motor vehicle capable of obtaining satisfactory riding comfortableness even if the center of gravity of a motor vehicle is lowered. SOLUTION: In a buffer member for a motor vehicle, a buffer member main body A is formed by a circular arc continuous face 2 whose upper face has planes 1 at both ends using an elastic material, at least two through spaces 31, 32 formed like a long hole whose cross section is a circle or both ends are semicircle in parallel with circular arc axial line below it are provided horizontally and at least in a row, and at least a pair of horizontal V-shaped grooves 4 are formed over whole width of both side faces at a lower position of the slotted hole through space.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shock-absorbing member (generally referred to as a bump rubber) having a stopper function while suppressing vibration and impact in an automobile chassis.

[0002]

2. Description of the Related Art Conventionally, as a shock-absorbing member (bump rubber) having a function of suppressing vibration and impact in a chassis of an automobile and having a stopper function, a rubber member having a long rectangular through hole extending over the entire length of a rectangular rubber is often used. Was.

[0003]

Therefore, since the conventional one has an insufficient cushioning function and immediately bottoms out, the suspension of the automobile is modified to lower the center of gravity of the chassis like a sports car. In other words, when the vehicle is low-down, the cushioning member (bump rubber) of the chassis is almost in a state of always abutting against the axle stopper. Met. In addition, this may affect the durability of the vehicle. The present invention has been made to solve this problem, and it is an object of the present invention to provide a cushioning member for a vehicle which realizes a comfortable ride even if the center of gravity of the vehicle is lowered.

[0004]

According to the present invention, there is provided a shock absorbing member for an automobile, wherein the shock absorbing member main body is made of an elastic material and is formed of an arc-shaped continuous surface having upper surfaces having flat surfaces at both ends. At least two horizontal and at least one row of penetrating spaces formed in the shape of a semicircular elongated hole are provided, and a horizontal V
It is to form at least one pair of groove.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings. FIG. 1 is a perspective view of the present invention, and FIG. 2 is a perspective view of a conventional automobile cushioning member.
In FIG. 1, a buffer member main body A is integrally fixed to an iron bracket B. The cushioning member main body A is made of vulcanized rubber, which is an elastic material, and is formed by a core and a split mold. The upper surface of the cushioning member main body A is an arc speed continuous surface 2 having flat surfaces 1 at both ends. A pair of semicircular through holes 31 formed in the shape of a long hole are provided symmetrically, and a pair of through holes 32 formed in a slightly longer shape in the center are provided horizontally and in a line, and the lower part of the long hole through space 31 is provided. The lateral V-shaped groove 4 is formed symmetrically with respect to the entire width of both side surfaces. The hardness of the rubber was determined by the composition ratio of the rubber material and the vulcanization treatment, and the best one was determined based on the results of a running test mounted on an actual test vehicle and completed. The bracket B is provided with a convex portion 5 at the center and mounting holes 6 on the left and right.

FIG. 3 is a perspective view of another embodiment. As shown in FIG. 3, a through space 33 formed in the same manner as in FIG. 1 and having a circular section in parallel with the axis of the circular arc as a second row below the pair is symmetrically left and right and slightly longer at the center. Are formed in a horizontal line, and a pair of lateral V-shaped grooves 4 are formed below the circular through space 33 over the entire width of both sides. In this case, the cushioning member main body A can be softened as a whole by being softer than that of FIG. 1 and the through spaces 31, 32, 33 being compressed and deformed even with a small impact force. As another embodiment, it is conceivable to change the type of the through space and the number and combination of the lateral V-shaped grooves in accordance with the characteristics of the mounted vehicle. In any case, the combination of the through space of the circular end face and the lateral V-shaped grooves of both side walls facilitates absorption of impact force and excellent durability because rubber, which is an elastic material, is compressed without difficulty. The effect can be exhibited.

When these are used, the one integrated with the mounting bracket B adapted to each vehicle type is replaced with a standard cushioning member (for example, as shown in FIG. 2) mounted at a predetermined position of the chassis. Just attach it. As a result, a comfortable ride can be enjoyed.

Next, the operation will be described. As shown in FIG. 4, the vehicle moves up and down the length range of the suspension effective stroke L of the shock absorber 11, but the chassis 1 having the normal vehicle height is used.
In the case of No. 2, the cushioning member 13 comes into contact with the axle stopper 14 only when the rear suspension is fully bottomed (fully operated to the bottom), that is, when the variable stroke becomes a. In this case, the shock absorbing force of the cushioning member corresponding to the present invention hardly relates to the riding comfort of the vehicle. However, in the case of a low-down chassis 15 arranged for sports use, the cushioning member 16 of the present invention always comes into contact with the axle stopper 14 during traveling, that is, when the variable stroke becomes b, the gap between the chassis and the axle is extremely small. Therefore, the riding comfort of the vehicle is greatly changed by the shock absorbing force of the cushioning member 16 attached at this time.

Here, a through space 3 in which the cushioning member main body is formed of rubber at both ends in a semicircular slot shape corresponding to an impact force in which the arc continuous surface 2 of the cushioning member entirely contacts the axle stopper.
Since 1, 32 and 33 are formed in a horizontal line, they are evenly crushed and shrunk and bent so that the horizontal V-shaped groove 4 is closed over the entire width of the side wall. Therefore, the shock absorbing member 16 of the present invention has a remarkably large shock absorbing force, so that the bottoming does not occur and a comfortable ride can be obtained.

[0010]

As described above, according to the present invention, a comfortable ride can be realized even if the center of gravity of the automobile is lowered.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a perspective view of a conventional cushioning member.

FIG. 3 is a perspective view of another embodiment.

FIG. 4 is a conceptual diagram illustrating the operation of the present invention.

[Explanation of symbols]

 Reference Signs List A buffer member main body B bracket 1 flat surface 2 arc continuous surface 31, 32, 33 penetration space 4 lateral V-shaped groove 5 convex portion 6 mounting hole 11 shock absorber 12 chassis of normal vehicle height 13 buffer member of normal vehicle height 14 axle stopper 15 Low-down chassis 16 Inventive cushioning member 17 Axle 18 Wheel tire a Working stroke of standard car b Working stroke of download car

Claims (1)

[Claims] 1. A cushioning member for automobiles, wherein a cushioning member main body (A) is made of an elastic material and has an upper surface formed of an arc continuous surface (2) having a flat surface (1) at both ends, and below the surface in parallel with the axis of the arc. At least two horizontal and at least one row of penetrating spaces (31, 32, 33) each having a circular or semicircular cross section at both ends are formed horizontally and at least in a row. An automobile cushioning member characterized in that at least one pair of grooves (4) is formed.