KR100460927B1 - Apparatus for evaluating performance of bumper in vehicle - Google Patents

Abstract

An apparatus for evaluating bumper performance of a vehicle is disclosed. An apparatus for evaluating bumper performance of a disclosed vehicle includes a transfer rail installed on a ground; A collision vehicle moving at a constant speed by a chain connected to the transport rail and colliding with a fixed wall surface; The front part is equipped with a bumper, a connection chain is installed on one side of the front bottom, a chain release device for releasing the connection chain is installed on the transfer rail, and one side of the rear wheel speeds up when colliding with the collision vehicle at a low speed. It is provided with a speed reducing device installed to reduce, and a collision bogie for colliding the rear of the collision vehicle is located at a rear of the collision vehicle for a certain distance.

According to the present invention, the evaluation accuracy is improved, bumper performance can be evaluated by reproducing various collision and collision types, and the performance of the front and rear bumpers can be simultaneously evaluated, thereby reducing the number of tests.

Description

Bumper performance evaluation device for vehicle {APPARATUS FOR EVALUATING PERFORMANCE OF BUMPER IN VEHICLE}

The present invention relates to an apparatus for evaluating bumper performance of a vehicle. More specifically, the evaluation accuracy is improved, and the bumper performance is evaluated by reproducing various collision and collision types, and the performance of the front and rear bumpers can be simultaneously evaluated. The present invention relates to a vehicle bumper performance evaluation apparatus for reducing the number of times.

1 shows a test apparatus for evaluating the performance of a bumper in a low speed collision according to the prior art.

As shown, a chain is connected to the vehicle 10, for example, and then moved at low speed to evaluate the bumper performance of the vehicle using conventional devices. Then, the vehicle 10 is collided with the fixed wall surface 21 to evaluate the performance of the bumper 11. In this case, the bumper 11 of the vehicle may evaluate only one surface of the front or rear surface.

As described above, the bumper 11 performance test apparatus of the vehicle 10 during the low-speed collision applied to the related art evaluates the performance of the bumper 11 by using the front or rear collision of the vehicle.

However, in the event of an accident due to multiple collisions, the bumpers 11 in the front or the rear all collide with each other, representing a much harsher collision type. The performance of the front bumper 11 or the rear bumper due to such multiple collisions cannot be accurately reproduced and evaluated at the same time.

The present invention was created in order to solve the above problems, and the evaluation accuracy is improved, and the bumper performance is evaluated by reproducing various collision and collision types, and the performance of the front and rear bumpers can be simultaneously evaluated. The purpose is to provide a bumper performance evaluation device.

1 is a schematic test apparatus for evaluating the performance of a bumper in a low speed collision according to the prior art.

2 is a view schematically showing the configuration of an apparatus for evaluating bumper performance of a vehicle according to the present invention.

3 is a partial detailed view showing a part of the configuration of Figure 2 in more detail.

4A and 4B are views for explaining the operation of the bumper performance evaluation apparatus for a vehicle according to the present invention.

<Description of the symbols for the main parts of the drawings>

10. Crash Vehicles

21. Fixed Wall

31. Ground

32. Transfer rail

34. Bumper

40. Collision Balance

43. Rear wheel

50. Speed reduction device

Bumper performance evaluation apparatus for a vehicle of the present invention for achieving the above object, the transfer rail installed on the ground; A collision vehicle moving at a constant speed by a chain connected to the transport rail and colliding with a fixed wall surface; The front part is equipped with a bumper, a connection chain is installed on one side of the front bottom, a chain release device for releasing the connection chain is installed on the transfer rail, and one side of the rear wheel speeds up when colliding with the collision vehicle at a low speed. It is provided with a speed reducing device installed to reduce, and a collision bogie for colliding the rear of the collision vehicle is located at a rear of the collision vehicle for a certain distance.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a block diagram schematically showing the configuration of a bumper performance evaluation apparatus for a vehicle according to the present invention, and FIG. 3 is a partial detailed view showing some components of FIG. 2 in more detail.

Referring to each of the drawings, the bumper performance evaluation apparatus of the vehicle according to the present invention, a transport rail 32 installed on the ground 31, and as shown in Figure 4a, a chain connected to the transport rail 32 ( 22) the collision vehicle 10 in which the bumper 11 collides with the fixed wall surface 21 at a constant speed, and the bumper 34 is mounted on the front portion 41, and the connecting body is connected to one side of the front bottom portion. (33b) is installed, the chain release device (33a) for releasing the connecting chain (33b) is installed on the conveying rail 32, and when colliding with the collision vehicle (10) at a low speed on one side of the rear wheel (43) Collision bogie 40 is provided with a speed reducing device 50 installed to reduce the speed, and positioned behind the collision vehicle 10 at a certain distance to collide with the tail of the collision vehicle 10 It is configured to include.

As shown in FIG. 3, the speed reduction device 50 is provided on one side of the rear wheel 43 of the collision bogie 40 and adjusts the reduction of the collision speed, and the brake device 53a. A brake stopper 53b provided at one side of the 53a to prevent the rear wheel 43 from operating before the collision bogie 40 is reduced, and a brake device 53a provided at the front side of the brake device 53a. An operating bar 52a for applying an operating force to the wheel, a wheel 52c installed at the lower end of the operating bar 52a to reduce friction when the operating bar 52a contacts the ground 31, The spring device 57 is connected to the operation bar 52a and the brake device 53a to reduce the speed of the collision bogie 40 by pushing the brake device 53a while maintaining a constant tension when the operation bar 52a is pushed. ) And one side of the rear wheel 43 of the collision bogie 40 is operated with the brake device 53a. A clasp bar device 51d for hooking the bar 52a and a sensing device 56 mounted on the ground 31 to sense a speed reduction of the collision cart 40 are configured.

And one side of the operation bar (52a) is provided with a latch groove (52b) for engaging the latch bar device (51d), the operation bar (52a) is caught in the hinge shaft (54a) to the collision bogie 40 It is installed, and on one side of the collision bogie 40 to vary the position of the hinge shaft 54a, a position adjusting device 54b for classifying the speed according to the vehicle type is installed.

In addition, the front side of the collision bogie 40 is connected to the other bogie 40, the connection and height adjustment device 42 for adjusting the height is installed.

One side of the clasp bar device 51d is provided with a clasp bar release device 51c for releasing the clasp bar device 51d to operate the brake device 53a.

Meanwhile, reference numerals 51a and 51b, which are not described in FIG. 3, represent the central axis and the spring for the off device.

Referring to the operation of the bumper performance evaluation apparatus of the vehicle according to the present invention having the configuration as described above are as follows.

Referring back to the drawings, the bumper performance evaluation apparatus for a vehicle according to the present invention is a test apparatus for simultaneously evaluating the performance of the front and rear bumpers in a multiple (chain) collision. In particular, it is possible to accurately evaluate the performance of the bumper due to the rear slow collision in the case of chain collision.

This will be described in more detail.

The bumper performance evaluation apparatus for a vehicle according to the present invention is provided with a collision bogie 40 and a speed reduction device 50 for reducing the speed thereof in order to evaluate the bumper performance due to a collision and a serial low speed collision.

And, as shown in Figure 4a, the collision vehicle 10 is moved at a constant speed (V1) by a chain connected to the conveying rail 32 on the ground (31). After moving at the speed of V1, it collides with the fixed wall surface 21. At this time, the front bumper 11 hits the fixed wall surface 21 and is damaged.

In addition, the collision trolley 40 also moves at the same speed V1 at a constant distance from the collision vehicle 10. At the same time as the collision vehicle 10 collides, the collision trolley 40 continuously advances to collide the collision vehicle 10 from the rear.

In the event of an accident, the bogie 40 generally decreases slightly in speed, ultimately resulting in the speed of V2. When the collision bogie 40 passes through the sensing device 56 of the collision bogie 40 installed on the ground 31, the latch bar that releases the latch bar device 51d connected to the bogie 40 is turned off. The release device 51c is pushed up while rotating the release device 51c, and the release device 51c, which is locked by the force of the spring device 57, also actuates the brake device 53a while pushing the latch bar device 51d connected thereto. .

Then, when all of the latch bar devices 51d are released, the brake device 53a acts on the collision bogie 40, and the brake device 53a tries to face backward by the direction of the collision bogie 40. At this time, the friction force with the ground 31 is reduced by using the wheel 52c.

In addition, the brake device 53a pushes the spring device 57 backward. At this time, the spring device 57 pushes the brake device 53a while having elasticity. In this device structure, the general brake device gives a large brake actuation force in one operation, whereas the spring device 57 gives a constant actuation force, so that the deceleration is It's much more accurate and works consistently.

Then, as shown in Figure 4b, the speed of the collision bogie 40 is reduced while going forward to collide with the reduced speed (V2) to the vehicle 10 collided, through the process of the chain collision and collision The performance of the bumper will be evaluated.

As described above, the vehicle bumper performance evaluation apparatus according to the present invention has the following effects.

Evaluation accuracy is improved compared to the bumper performance evaluation in the front or rear collision due to the conventional simple collision, and it is possible to evaluate the bumper performance by reproducing various types of collisions and collisions.

In addition, the number of tests can be reduced by simultaneously evaluating the performance of the front and rear bumpers.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (6)

A transfer rail installed on the ground; A collision vehicle moving at a constant speed by a chain connected to the transport rail and colliding with a fixed wall surface; The front part is equipped with a bumper, a connection chain is installed on one side of the front bottom, a chain release device for releasing the connection chain is installed on the transfer rail, and one side of the rear wheel speeds up when colliding with the collision vehicle at a low speed. A bumper for evaluating a bumper performance comprising a speed reducing device provided to reduce the collision, and a collision bogie positioned at a rear of the collision vehicle to collide with the rear of the collision vehicle. Device. The method of claim 1, The speed reducing device, A brake device installed on the collision trolley on one side of the rear wheel to adjust the reduction of the collision speed; A brake stopper installed on one side of the brake device to prevent the collision bogie from operating on the rear wheel before speed reduction; An operation bar installed at a front side of the brake device to apply an operating force to the brake device; A wheel installed at a lower end of the operation bar to reduce friction when the operation bar contacts the ground; A spring device connected to the operation bar and the brake device to reduce the speed of the collision bogie by pushing the brake device while maintaining a constant tension when the operation bar is pushed; A latch bar device installed at one side of the rear wheel to engage the brake device and the operation bar; And a sensing device installed on the ground to sense a speed reduction of the collision bogie. The method of claim 2, Bump performance evaluation device for a vehicle, characterized in that the one side of the operation bar is provided with a latch groove for engaging the operation bar. The method of claim 2, Bump performance evaluation apparatus of the vehicle, characterized in that the collision control unit is installed on the side of the operation bar to distinguish the speed according to the vehicle type. The method of claim 2, Bump performance evaluation apparatus for a vehicle, characterized in that the latch bar release device is installed on one side of the latch bar device to release the latch bar device to operate the brake device. The method of claim 1, Bump performance evaluation device of the vehicle, characterized in that the front side of the collision bogie is connected to the other bogie, the connection and height adjustment device for adjusting the height is installed.