JPS5816928Y2 - Automotive buffer bumper - Google Patents

Description

[Detailed Description of the Invention] This invention relates to shock absorbing buns that are attached to the front and rear of automobiles.

In recent years, the number of cars owned in Japan has increased to 3,200,000, and the number of people with driver's licenses has increased to 3,600,000, making Japan the second largest country in the world after the United States.

However, the road condition is poor, with 74 roads being narrower than 3.5 meters, leading to traffic congestion and frequent accidents.

By the way, excluding excessive speed, drunk driving, and distracted driving, there are many cases where rear-end collisions occur at speeds of 25 km/h or less after braking.
% of all collisions.

Since it is difficult to completely prevent accidents because non-gods are driving the cars, it is necessary to take measures to compensate for the loss of driving by making the car structure safer (fail-safe).

This idea was made in view of the above-mentioned circumstances, and aims to improve the safety of passengers and reduce damage to the vehicle by giving the vans that come into contact at the beginning of a collision an effect of absorbing kinetic energy.

Below, this invention will be explained with reference to drawings as an example of implementation. 1 is a buffer body made of vinyl chloride, synthetic rubber, etc. as a raw material, and made of a flexible airtight container formed by, for example, flow molding; Connecting surface 4 that fits buns 3,! Attachment ears 5, 5 are provided on both sides of the front side of the buns, and are connected to the front surface of the buns 3, and an attachment tool, for example, a band 6, is wrapped around the attachment ears 5, 5 to be worn.

Further, a flange 10 is provided at the upper part of one side of the buffer body 1 and communicates with the storage chamber 2, and serves as a connecting portion between an inlet/outlet 8 for the antifreeze solution 7 and a soft recovery pipe 9 for recovering the antifreeze solution.

Although the fittings are not shown, they may be additional fittings or bolts and nuts, and the residue collection pipe 9 may be of a bellows type as shown in FIG. 3.

To actually install the buns 3, as shown in the figure, buffer bodies 1 filled with antifreeze are placed on the left and right with appropriate spacing between them, and a recovery tube 9 is installed in the 7 langes 10° 10 of both buffer bodies 1, 1. It is made by connecting.

Since this invented bun is provided as described above, in the event of an accidental collision, the buffer body receives a pressing force and discharges the antifreeze liquid 7 inside to the outside, thereby reducing its storage capacity.

The antifreeze I discharged from the inlet/outlet 8 flows into the recovery pipe 9,
It will be collected.

The impact is mainly buffered by the kinetic energy of the liquid flowing out from the port 8 having a limited size and the expansion resistance of the recovery tube 9.

This effect is significant (in collisions at low speeds of 25 km/h or less, most damage to the vehicle is prevented and the safety of the occupants is ensured).

When the kinetic energy due to the collision is buffered, the antifreeze I is returned to the original buffer body 1 by the contraction force of the collection tube, returns to its original state, maintains its buffering function, and absorbs water during collision buffering. Compared to a single structure, maintenance is simpler.

In addition, since the outer shape of the shock absorber of this invented band is box-shaped, it can be attached to an existing car band, and it can be attached by using a band stopper as shown in the figure, or by using mounting brackets and bolts. This can be easily done by adding lights such as a nut stopper, and the outer shape of the shock absorber helps cushion car-to-vehicle collisions, and the collection pipes that connect the left and right shock absorbers can also be used to cushion pedestrians in the event of a collision. It is effective.

In particular, approximately 35 vehicles used at driving schools for the purpose of practicing driving have been involved in collisions, with speeds of 25km/h.
/h or less, so if you install this invented band, the crew can
The cushioning effect of vehicles is expected to be large.

[Brief explanation of drawings]

FIG. 1 is a perspective view of this invented band, FIG. 2 is a rear perspective view of the shock absorber, and FIG. 3 is an explanatory view of the function. 1...Relaxation body, 2...Containment room, 3...
...Band 4...Connection surface, 5...
Mounting ear, 6... Band, 7... Antifreeze, 8... Entrance/exit, 9... Collection pipe, 10
...Flange.

Claims (1)

[Scope of utility model registration request] A soft box-shaped shock absorber made of vinyl chloride, synthetic rubber, etc. has its interior communicated with a flange provided on the outer surface of one side of the upper part, and its seven flanges are made to correspond to each other, and both ends of the soft recovery pipe are connected. The mounting ears protruding from both needle sides are fixed to the buns, and a pair of soft box-shaped shock absorbers are supported on the left and right sides.In the event of a collision, the shock absorbers are compressed and the antifreeze stored inside is suddenly released to the outside through the flanges. A shock absorbing bumper for an automobile, characterized in that antifreeze flows out, is expanded and contained in a recovery tube, mainly absorbs kinetic energy, and after a collision, the antifreeze is returned to the shock absorber by the contraction pressure of the recovery tube.