JPS61196847A - Shock absorber fixing structure for safety provision transporter - Google Patents

Abstract

PURPOSE:To exhibit shock absorbing function reliably by securing the fixing side of shock absorbing member at the frame side through a fixing board of reinforcing structure when fixing a bumper to the chassis frame through a shock absorbing member bucklable through impact. CONSTITUTION:In the bumpers 6 arranged in back/fro and to the right/left of vehicle and fixed to the chassis frame 9 through shock absorbers 1... composed of base body 2 of hollow polygonal pole having a row of many notches 3, the flange 4 provided on the top face of shock absorber 1 is tightened through a resilient member 7 to the bumper 6. While a fixing board 8 where the holding board 10 contacting against the underface of the chassis frame 9 is reinforced through plural reinforcing brackets 11 is tightened through bolts to the sideface of the chassis frame 9. Then a flange 5 provided on the bottom face of shock absorber 1 is tightened through bolts to said fixing board 8 thus to fix the shock absorber 1.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention provides panties at the front and rear of a transport vehicle (not only the front and rear panties, but also panties with impact absorbing material on the side of the vehicle body), which prevents impact from collisions from the side of the vehicle body. The attachment of the shock absorber to the side of the vehicle body is structural, so that the absorber works effectively to absorb impact energy.

Prior Art In order to absorb impact energy during a conventional collision,
There are bumpers on the front of passenger cars that are equipped with shock absorbers and other measures to prevent minor collisions.However, in order to absorb the primary collision energy, the frame must be bent, and the bent part may buckle. Some of them were designed to take advantage of shape deformation effects, and were not designed to be able to be replaced and used again.

In trucks, etc., there are people and animals below the vehicle body from the side.
Although there are guards to prevent objects from getting into the vehicle, there is no shock absorbing material that absorbs the energy of a collision against the side of the vehicle, and as a result, the structure has not been taken into consideration when installing the vehicle.

Problems to be Solved by the Invention Therefore, since conventional vehicle sides did not have bumpers with shock absorbing materials in the event of a collision, they were defenseless against collisions from the side of the vehicle body, and vehicles such as trucks did not absorb collision energy. If the vehicle is carrying a heavy load, the instantaneous high load applied to the load due to the collision will act on the vehicle body, causing the vehicle to overturn or eject the load.
This could have caused a secondary disaster.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a structure in which shock absorbers are installed on front and rear bumpers and vehicle body sides to effectively alleviate and absorb impact energy caused by a collision, and can be installed easily and inexpensively. be.

In a shock absorbing material with parallel notch holes drilled in the axial direction to facilitate buckling on the sides and flanges formed on the top and bottom surfaces, the bumper is bolted to the flange on the top surface through an elastic material, etc. A shock absorption system in which the flange on the bottom is bolted to a mounting plate that is in contact with the side of the vehicle body frame and is bolted to the side of the vehicle body frame. The material mounting is the structure.

Hereinafter, it will be explained with reference to the drawings. As shown in FIGS. 1, 2, and 3 to 4, 1 has flanges 4.5 on the top and bottom surfaces of a base 2 consisting of a hollow polygonal base 2. The formed shock absorbing material is provided with regular notch holes 3 in the axial direction to facilitate buckling on each side of the base body 2.
is drilled. Reference numeral 6 denotes a bumper bolted to the flange 4 on the top surface via an elastic member 7 or the like. Also,
Reference numeral 8 denotes a mounting plate, on which a retaining plate 10 that abuts the lower surface of the vehicle body frame 9 is welded and protrudingly provided, and reinforcing brackets 11 are welded at several locations between the mounting plate 8 and the retaining plate 10. Then, the mounting plate 8 and the holding plate 10 are brought into contact with the side and bottom surfaces of the vehicle body frame, respectively, and bolted.

Therefore, the shock absorbing material 1 to which the bumper 6 is bolted is attached to the mounting plate 8 by tightening the bolts with the flange 5 on the bottom surface.

Note that 12 is a bumper at the rear of the vehicle body.

The above is the top and bottom flanges 4.5 of the shock absorber 1.
The bumper 6 is attached to the vehicle body frame 9, but the attachment of the shock absorbing material is not particularly limited to the structure.The bumper 6 is attached to the bumper after welding the top plate and the bottom plate to the top and bottom surfaces. Of course, the mounting plate 6 and the mounting plate 8 may be attached by tightening bolts.

Therefore, a shock absorbing material 1 consisting of a hollow polygonal base column and having notched holes 3 parallel to each other in the axial direction so as to easily buckle on the side surface of the material 1 is attached to the vehicle body as shown in FIGS. 5 and 6. Since it is installed on the side, the impact energy that induces instantaneous high loads during a collision can be absorbed by this impact absorbing material 1 to a large extent through the phenomenon of buckling, although the overall total impact energy remains unchanged. . If the structure of the mounting plate 8, which serves as a mounting seat for absorbing the impact energy, is weak, the shock absorbing material 1 will not be able to absorb the buckling and will not be able to perform its function. Therefore, the structure of the seat should be made strong, and since the colliding object is generally located at a lower position than the body frame 9, the bumper position must be correspondingly lower than the body frame 9 to prevent collisions. A mounting is designed into the structure that can also absorb moment effects around the body frame 9 due to energy.

In the figure, 13 is a bumper at the front of the vehicle body, 14 is a heavy load, and 15 is a vehicle that reabsorbs the impact energy absorbed by the bumper in a front-back collision, and absorbs the reaction load of the load caused by the impact. It is a double shock absorber.

As a result, the impact absorbing material was installed firmly so that the structure did not generate any rotational moment on the vehicle body frame, so in the event of a collision, an average load was applied to the cross-sectional plane of the impact absorbing material, and the impact absorbing material did not bend. Due to the phenomenon of buckling, impact energy can be reliably absorbed and reduced.
Moreover, shock absorption

[Brief explanation of the drawing]

FIG. 1 is a side view of the structure of the shock absorbing material attached to the side of the vehicle as seen from the rear of the vehicle, FIG. 2 is a top view, and FIG. 3 is a front view showing the mounting arrangement. FIG. 4 is a sectional view of the structure for mounting the vehicle body frame. FIG. 5 is a side view showing the arrangement of the shock absorber attached to the vehicle body, and FIG. 6 is a top view. 1. Shock absorber, 2. Base, 3. Notch hole, 4.
・Flange, 5.. Flange, 6.. Bumper, 7.. Elastic material, 8.. Mounting plate, 9.. Body frame, 10.. Support plate, 11.. Reinforcement bracket, 12.. Vehicle rear bumper. , 13...Front bumper of vehicle body, 14...Load, 15...
Double shock absorber.

Claims (1)

[Claims] Notches (3) parallel to each other in the axial direction are bored on each side of the base (2), which is a hollow polygonal truncated pyramid, to facilitate buckling, and flanges (4) are formed on the top and bottom surfaces. 5), the bumper (6) is bolted to the top flange (4) via the elastic material (7), etc., and is also brought into contact with the lower surface of the vehicle body frame (9). Holding plate (10)
A reinforcement bracket (1) is welded to protrude and reinforce the holding plate.
Shock absorber mounting structure in which the bottom flange (5) is bolted to the mounting plate (8) which is in contact with the side of the vehicle body frame (9) to which 1) is welded and bolted.