KR20070053388A - General-purpose barrier for collision test for vehicle - Google Patents

Abstract

The present invention relates to a general-purpose collision device for a vehicle collision test capable of frontal collision, side collision, slope collision, and pole collision test by protrusions with only one collision structure, and for at least two collision tests to the outside. A weight structure 110 having a structure and having a space 111 open from the inner center to the ground; Ground of the lower end of the space portion of the heavy object 110 via a motor 120 capable of forward and reverse rotation by an external control and a gear box 132 that can switch the driving force of the motor 120 in a linear or rotary motion. A driving unit 130 formed of a propulsion shaft 131 installed in a vertical direction on the top; A height sensing unit 140 installed in the space part of the heavy material 110 and controlling the gear box 132 by detecting a lifting height of the propulsion shaft 131 in association with the propulsion shaft 131; A rotation sensing unit for sensing a rotation angle of the driving unit 130 and outputting a control signal at a set angle; Including the indicating unit 180 for outputting the signal generated by the rotation detection unit as an audio or visual signal, it is effective to ensure the safety of the operator compared to the conventional and to reduce the time and cost required for the test .

Collision Test, General Purpose, Frontal Collision, Side Collision, Pole Collision, Drive, Motor, Heavy Load, Height Sensing, Rotation Sensing.

Description

General-purpose barrier for collision test for vehicle

1 is a preferred example of the external appearance of the general purpose collision device of the present invention

       Showing drawings,

Figure 2 is a view showing a cross-sectional structure of the general purpose collision device of the present invention,

3 is a view showing a cross-sectional configuration of part A of FIG.

4 is a view showing an operation example of the general-purpose collision device of the present invention,

5 is a vehicle crash test example using a general-purpose collision device of the present invention

       Showing drawings.

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

110: heavy object 120: motor

130: drive unit 140: height detection unit

150: second hydraulic cylinder 160: wheels

180: indicator

The present invention relates to a general-purpose collision device for vehicle collision testing, and in particular, the front collision, side collision, slope collision, and pole collision test by protrusions are all possible with only one collision structure, and the preparation work required for the collision test is performed. The present invention relates to a general-purpose collision device for vehicle crash testing that can minimize the number of points.

In general, in producing a vehicle, the performance, durability, safety, etc. of the vehicle are evaluated, and the result of the evaluation is reflected in the vehicle design to develop the vehicle. Therefore, various crash tests are performed on the test vehicle, and this crash test process takes a lot of time, personnel, and budget.

Conventional crash tests include frontal collisions, offset collisions (left and right), slope collisions (left and right), and pole collision tests by protrusions, each of which is used to test the vehicle while changing the collision surface of the barrier. Perform a collision test with

On the other hand, the collision surface of the barrier is typically used to adjust the position or angle of the barrier to the fixed wall using a forklift. However, the process of moving the barrier using a forklift takes a lot of time, and a lot of trouble occurs in the work with the risk of safety accidents.

In addition, the fixed wall to which the barrier is fixed is provided with a measuring device for obtaining various data during the collision process with the test vehicle. In particular, since the camera for photographing the image information of the lower part of the test vehicle during the collision should be installed on the floor surface near the fixed wall, the floor near the fixed wall is open.

Therefore, the operation of moving the position of the barrier using a forklift near a fixed wall having a space drilled on the bottom surface presents a lot of risks to the safety of the worker.

The present invention is to solve the above shortcomings, various collision tests can be made with only one collision structure, without the need to move the barrier directly as in the prior art, for a vehicle collision test that can minimize the preparation work required for the collision test It is intended to provide a general purpose collision device.

Such a general collision device for a vehicle crash test of the present invention, the weight is provided with at least two or more collision test structure to the outside, the space portion is formed in the open space from the inner center to the ground; A drive unit comprising a motor capable of forward and reverse rotation by external control, and a propulsion shaft installed in a vertical direction on the ground of the lower portion of the space of the heavy object via a gear box capable of converting the driving force of the motor into a linear or rotational motion; A height sensing unit installed in the space part of the heavy material and controlling the gear box by detecting a lifting height of the propulsion shaft in association with the propulsion shaft; A rotation sensing unit sensing a rotation angle of the driving unit and outputting a control signal at a set angle; Characterized in that it comprises an indicator for outputting the signal generated by the rotation detection unit as an audio or visual signal.

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a preferred example of the external appearance of the general-purpose impact device of the present invention, the present invention is fixed wall structure 111, slope surface structure (used in the conventional crash test to the outside of the heavy object 110, such as concrete ( 112, the protruding structure 113 is fixed.

The fixed wall structure 111 may be used for the offset collision test by allowing the weight 110 to move in the horizontal direction using a pulley.

The inclined surface structure 112 may be used in a right or left inclined collision depending on the inclined direction.

Protruding structure 113 is used in the crash test on the protrusion, the shape can be variously modified.

Thus, various crash test structures normally used for crash test are provided on the outer side of a heavy object. At this time, the various structures may be manufactured integrally with the weight, or may be fixed to the weight using a fastening member such as a bolt.

These weights are placed at the site for the crash test, and the crash test is made by rotating the weight 110 in the direction of the structure to be used according to the crash test purpose.

Figure 2 is a view showing a cross-sectional structure of the general purpose collision device of the present invention, showing a preferred example for rotationally driving a heavy object.

Referring to FIG. 2, a space 114 opened to the ground is formed at the inner center of the weight 110 so that devices for rotationally driving the weight may be installed.

The apparatus for rotating and driving the heavy object 110 may be provided by the forward and reverse rotation motors 120 and the driving unit 130, and rotates with the height sensing unit 140 so that proper control of the driving unit 130 is achieved. The sensing unit is installed, and the indicator unit 180 which can inform that the heavy object is located at a specific angle is provided.

The motor 120 is operated by an operator, the power is supplied by the operation of the switch not shown to perform the forward or reverse rotation drive.

The driver 130 lifts or rotates the heavy object 110 using the driving force of the motor 120.

The drive unit 130 includes a propulsion shaft 131 installed in the vertical direction on the ground, and a gear box 132 for transmitting the driving force of the motor 120 to the propulsion shaft 131.

In particular, the gear box 132 is capable of driving the driving shaft 131 up and down or rotational drive using the driving force of the motor, and thus switching between linear or rotational movement is an external control signal transmitted to the gear box 132. Is made by.

The upper end of the propulsion shaft 131 is provided with a protruding fork member can be firmly fixed to the heavy material. However, the upper end of the propulsion shaft is sufficient to be a structure capable of firmly supporting the weight, and is not limited to a particular shape.

The lifting or rotation driving control of the driving unit 130 is made by the height sensing unit and the rotation sensing unit.

The height detecting unit may be provided by various means capable of detecting a change in height when the propulsion shaft is raised and lowered. For example, by installing the variable resistor on the propulsion shaft, it is possible to detect the change in the current signal flowing through the variable resistor in accordance with the height change of the propulsion shaft. Alternatively, an electrical contact may be used that is turned on or off in response to a change in height of the propulsion shaft.

In particular, in the present invention, the height sensing unit 140 is a relative of the first fluid cylinder 142 and the piston 141 is provided with a piston 141 which is operated in the vertical direction by an external force through a fluid. It is characterized in that the contact switch (143a) (143b) in which electrical contact is made by the position variation.

The first fluid cylinder 142 is filled with gas or preferably oil, and the first fluid cylinder 142 is connected to the second fluid cylinder 150 by a hydraulic line. At the lower end of the second fluid cylinder 150, a wheel 160 rotatable with respect to the ground is fixed. The wheel 160 guides the smooth rotation when the weight 110 rotates.

That is, when the propulsion shaft 131 is raised to compress the piston 141, the fluid in the first fluid cylinder 142 is hydraulically acted on the second fluid cylinder 150, the hydraulic pressure in the second fluid cylinder 150 The increase helps the piston 160 to which the wheel 160 is fixed to rise to allow the weight 110 to rise stably.

Meanwhile, the contact switches 143a and 143b are formed of the first contact point 143a and the second contact point 143b, and are separated from each other in the state in which the heavy material 110 is seated on the ground. For example, the first contact point 143a may be fixed to the lower end of the piston 141, and the second contact point 143b may be fixed to the cylinder, and the first contact point 143a when the heavy object 110 is seated on the ground ) And the second contact point 143b are separated from each other, and the first point 143a and the second contact point 143b are in contact with each other when the heavy object 110 moves to the ground at a predetermined height.

The on / off signal by the contact switch is transmitted to the gearbox 132, and the gearbox 132 lifts or rotates the propulsion shaft 131 according to the signal of the contact switch.

The rotation detecting unit detects a rotation angle of the driving unit 130 and outputs a control signal at the set angle.

The rotation detecting unit includes a light receiving unit 171 fixed at an angle of 90 ° to the auxiliary bracket 133 positioned to surround the outer side of the propulsion shaft 131, and one side of the outer circumferential surface of the propulsion shaft 131 at a position corresponding to the light receiving unit 171. It may be provided by the light emitting unit 172 fixed to.

The arrangement angle of the light receiving unit 171 may be determined differently according to the arrangement of the structure installed outside the heavy object.

That is, each time the propulsion shaft 131 is rotated by 90 °, the optical signal of the light receiving unit 171 is input to the light emitting unit 172, and the light emitting unit 172 outputs a predetermined control signal to the outside according to the input optical signal to the outside. You can check the rotation.

In the exemplary embodiment of the present invention, only the rotation sensing unit including the light emitting unit for outputting an optical signal and the light receiving unit for outputting a predetermined control signal according to the input of the optical signal has been described. However, the present invention is not limited to this embodiment. Obviously, it is possible to check the rotational state of the propulsion shaft by various sensing means.

The indicating unit 180 is an apparatus for outputting a signal generated by the rotation sensing unit as an audio or visual signal, and a lamp or a buzzer for generating a predetermined sound may be used.

Looking at the operation example of the general-purpose collision device for a vehicle crash test of the present invention configured as described above are as follows.

When the worker operates the switch of the motor 110, the driving force of the motor 110 is transmitted to the propulsion shaft 131 through the gearbox 132 and the propulsion shaft 131 is raised. As the propulsion shaft 131 is raised, the first hydraulic cylinder 142 of the upper end of the propulsion shaft 131 is compressed, and the hydraulic pressure acts on the second hydraulic cylinder 150. Therefore, the piston of the second hydraulic cylinder 150 on the upper end of the wheel 160 with the rise of the propulsion shaft 131 ascends to help the stable rise of the heavy material (110).

When the propulsion shaft 131 rises to a certain height, the first and second contacts 143a and 143b contact each other, and transmit a signal to the gearbox 132. The gear box 132 rotates the propulsion shaft 131 by converting the driving force transmitted from the motor 120 into the rotational driving force according to the signals of the first and second contacts 143a and 143b.

With the rotation of the propulsion shaft 131, a signal is transmitted to the indicator 180 through a rotation detecting unit at every 90 ° rotation angle. Therefore, the operator checks the rotation direction of the weight 110 through the indicator 180 every 90 ° rotation. While the weight 110 may be positioned in the desired direction.

That is, when the operator confirms that the heavy object 110 is positioned in the desired direction from the operation of the indicator unit 180, once the motor 120 is driven in reverse rotation after stopping the operation of the motor 120, the propulsion shaft 131 ), The weight 110 is placed on the ground to complete the crash test preparation.

The universal collision device for vehicle collision test of the present invention as described above, the pole collision test structure by the front collision, side impact, inclined surface collision, and protrusions integrally installed on the outside of one heavy object, and the heavy object for each collision test required By operating the drive unit installed in the desired impact structure can be selected and used, compared to the conventional to ensure the safety of the operator and the time and cost required for the test can be reduced.

Claims (2)

At least two or more collision test structures are provided on the outside, and the weight formed a space portion open from the inner center to the ground; A drive unit comprising a motor capable of forward and reverse rotation by external control, and a propulsion shaft installed in a vertical direction on the ground of the lower portion of the space of the heavy object via a gear box capable of converting the driving force of the motor into a linear or rotational motion; A height sensing unit installed in the space part of the heavy material and controlling the gear box by detecting a lifting height of the propulsion shaft in association with the propulsion shaft; A rotation sensing unit sensing a rotation angle of the driving unit and outputting a control signal at a set angle; And an indicator for outputting the signal generated by the rotation detection unit as an audio or visual signal. The method of claim 1, wherein the height detection unit A first fluid cylinder having a piston which is operated in an up and down direction by an external force through a fluid, and a contact switch in which electrical contact is made by a relative position change of the piston, And a wheel having a second fluid cylinder connected to the first fluid cylinder and a hydraulic line through which a linear drive is performed, between the lower part of the heavy body and the ground.

Images