JP2003021573A - Vehicle-collision testing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle-collision testing apparatus by which the collision test of a test vehicle can be executed with satisfactory accuracy by a method, where a traction device and a guide rail are arranged in the lower part from a running road surface, so as not to obstruct the running operation of the test vehicle. SOLUTION: In the vehicle-collision testing apparatus by which the vehicle is pulled to a part near a barrier, by using the traction device 16 and by which the vehicle is separated from the traction device 16, at a position before a prescribed distance from the barrier, the traction device 16 and the guide rail 26, which guides the traction device 16 to the barrier, are arranged in the lower part from the running road surface 12a on which the vehicle runs.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle crash test apparatus suitable for conducting a crash test with higher accuracy.

[0002]

2. Description of the Related Art To carry out a vehicle collision test, an actual vehicle test in which an actual vehicle collides with a barrier (fixed wall) is generally performed. As a vehicle collision test apparatus for performing such a test, for example, Japanese Patent Application Laid-Open No. 8-145839, "Device for preventing disconnection of connecting wire in vehicle collision test apparatus" is known.

The collision barrier 1 is shown in FIGS. 1 and 2 of the publication.
1 (the reference numeral is used in the publication. The same applies hereinafter) is provided with a groove portion 1 on which a guide rail 2 is laid, and a test vehicle V is installed on the guide rail 2. Skater S for guiding to the collision barrier 11
Movably attached to the guide rail 2, attached to the towing wire rope Wa, and attached to the skater S.
The skater 26 connected to the skater 26 is movably attached, and the skater S, S
A vehicle crash test system is described in which a striker 35 for impacting 26 is mounted.

[0004]

In the above technique, the skater S, the skater 26, and the striker 35 are all projected above the floor surface. For example, collision barrier 1
In the offset collision test, in which 1 is offset to the left and right with respect to the traveling direction of the test vehicle V to collide, the test vehicle V is used as a skater S on the collision barrier 11 in order to reduce the offset error of the test vehicle V with respect to the reference offset amount. It is necessary to bring the test vehicle V as close as possible to the collision, and immediately after the collision, the test vehicle V hits the skater S, the skater 26 or the striker 35 described above, or the width of the groove portion 1 of the running path of the test vehicle V is large. Since the V wheel fits in the groove portion 1, the collision test was not carried out accurately, which required time and effort such as retesting.

Therefore, an object of the present invention is to improve a vehicle collision test device to carry out a collision test more accurately.

[0006]

In order to achieve the above object, the first aspect of the present invention is to pull the test vehicle to the vicinity of the barrier by using the towing means, and pull the test vehicle from the towing means at a position a predetermined distance before the barrier. In the vehicle collision test device configured to be separated, the traction means and the guide rail for guiding the traction means to the barrier are arranged below the traveling road surface on which the test vehicle travels. By disposing the towing means and the guide rail below the traveling road surface, it is possible to carry out the collision test of the test vehicle with higher accuracy without obstructing the traveling of the test vehicle.

According to a second aspect of the present invention, the pulling means is provided with a hook for hanging the test vehicle connecting wire, and the width of the hook is made smaller than the width of the guide rail. The width of the hook can be made smaller. For example, if a gap for moving the hook is provided in the running path on which the test vehicle is run, the width of this gap can be made smaller and the wheels of the colliding test vehicle are It is possible to prevent fitting in the gap.

According to a third aspect of the present invention, a recess for accommodating at least the pulling means and the guide rail is formed on the traveling road surface, and the upper opening of the recess is covered with a removable cover except at least a portion where the hook moves. It is characterized by By removing the cover, the traction means and the guide rail in the recess can be easily maintained.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of the reference numerals. FIG. 1 is a side view of a vehicle collision test apparatus according to the present invention. A vehicle collision test apparatus 10 includes a traveling road 12 on which a vehicle 11 as a test vehicle travels, and a barrier 13 provided at an end of the traveling road 12. , The concave portion 15 provided on the traveling road surface 12a of the traveling road 12, and the concave portion 1 for towing the vehicle 11.
5, a traction device 16 that is movably provided as a traction means, and a traction device 17 that is movably provided in the concave portion 15 for applying a rearward pulling force to the vehicle 11 for the purpose of enhancing straightness of the vehicle 11. And a braking device 18 provided in a recess 15 substantially below the barrier 13 for stopping the traction device 16 and the tension device 17, and a drawing for moving the traction device 16 and the tension device 17 to the barrier 13 side. The cable 21 is configured to be fed to the barrier 13 side by a cable feeding device (not shown). Incidentally, 22 is a front connecting wire as a wire for connecting the vehicle 11 and the towing device 16,
Reference numeral 23 is a rear connecting wire that connects the vehicle 11 and the tension device 17, and 24 is a front wall that fixes the barrier 13.

FIG. 2 is a plan view of the vehicle collision test apparatus according to the present invention, in which the barrier 13 is overlapped by a predetermined ratio W with respect to the maximum width W1 of the vehicle 11 (excluding the door mirror).
2 shows a state in which the condition of the offset collision is set in which only two drivers collide with each other from the driver's seat side (in this case, the right side of the vehicle 11). The front connecting wire 22 is connected to the vehicle 11
The front part of the vehicle 11 is connected to the towing device 16 and the rear connecting wire 23 is connected to the pulling device 17 from the rear part of the vehicle 11.
Connect to.

FIG. 3 is a side view of the towing device according to the present invention. The towing device 16 includes guide rails 26 and 26 (one guide rail 26 not shown) provided below the traveling road surface 12a. A main traction part 28 movably attached to the guide rails 26, 26 via the wheels 27, 27, a hook 31 swingably attached to the main traction part 28 and hung on the front connecting wire 22, and a main traction part. The slide member 32 is attached so as to be movable a predetermined distance in the traveling direction of 28, and the slide member holding portions 33, 33 provided on the main traction portion 28 for holding the slide member 32 at a high position. Incidentally, 11a is a front hook on the vehicle 11 side, and 36 is a hook 3 for hitting the cable 21.
1, a contact plate provided in the lower part of 1, a stopper piece 37 for restricting the clockwise rotation of the hook 31, a reference numeral 38 a bottom plate of the recess 15,
41 is the base. The cable 21 is sandwiched between the slide member 32 mounted on the slide member holding portions 33, 33 and the hook 31 via the intermediate member 34.

The hook 31 is a member that swings around a support shaft 42 attached to the main towing portion 28. The slide member 32 has rollers 43 and 43 attached to the intermediate member 34 on the upper surface of a plate-shaped member, and the slide member holding portion 3 on the lower surface.
Rollers 44, 44 are provided on the rollers 33, 33, respectively. Note that 34a and 34b are roller abutting portions provided on the intermediate member 34 so as to abut against the rollers 43 and 43.

FIG. 4 is a sectional view taken along line 4-4 of FIG. 3, in which the bottom plate 38 of the recess 15 has guide rails 26, 26 having a U-shaped cross section.
Are attached with nuts 46 ... (... indicates a plurality, the same applies hereinafter) and bolts 47.
6,26 through the wheels 27,27 to the main towing portion 28
Shows the state of being hung.

The main towing section 28 is a main body 48 having a U-shaped cross section.
Reinforcing plates 51, 51 are attached to both sides of the
It is a member in which wheels 27, 27 are rotatably attached to 1, 51, respectively.

In the figure, 14 and 14 are covers detachably attached to the traveling road surface 12a by means of bolts 14a ... To close the upper opening of the recess 15, and from the both ends of the recess 15 to the hook 31 side, respectively. It is a member arranged so as to be projected and divided into a plurality of parts in the front-back direction of the paper surface.

The width WH of the hook 31 is equal to the width of the guide rail 2.
The width WS of the slit 52 formed between the covers 14 and 14 is slightly larger than the width WH of the hook 31 and the vehicle 1
The tire width is smaller than the tire width of 1 (see FIG. 2).

FIG. 5 is a sectional view of the braking device according to the present invention. The braking device 18 has a mass 54 as a stopper for colliding the slide member 32 (see FIG. 3) of the towing device 16 (see FIG. 3), A spring 55 that generates an elastic force in a direction to push out the mass 54, a case 56 that accommodates the mass 54 and the spring 55, and a case 5
6, a hook tilting bar 57 provided for tilting the hook 31 (see FIG. 3) of the towing device 16 is provided.

FIG. 6 is a side view of the tensioning device according to the present invention. The tensioning device 17 is movable on guide rails 26, 26 (one guide rail 26 is not shown) via wheels 27, 27. The attached main pulling portion 61, the hook 62 that is swingably attached to the main pulling portion 61 and hangs on the rear connecting wire 23, and the slide member 32 that is attached so as to be movable a predetermined distance in the traveling direction of the main pulling portion 61. In order to hold the slide member 32 at a high position, the main tension portion 61
The slide member holding portions 63, 63 provided on the. In addition, 11b is a rear hook of the vehicle 11, and 65 is a hook 6
2 is a stopper piece that restricts the counterclockwise rotation of 2. The hook 62 is a member that swings around a support shaft 67 attached to the main pulling portion 61.

The operation of the vehicle collision test apparatus described above will be described below. 7 (a) to 7 (d) are first operation diagrams for explaining the operation of the vehicle collision test apparatus according to the present invention, and the process from the stopped state of the vehicle to the collision will be sequentially described.
(A) shows a state where the vehicle is stopped. The vehicle 11 is not connected to the towing device 16 and the tensioning device 17.

(B) shows a state in which the cable 21 is started to be fed to the barrier 13 side, the vehicle 11 is towed by the towing device 16 and a rearward pulling force is applied to the vehicle 11 by the tensioning device 17.

In (c), immediately before the vehicle 11 collides with the barrier 13, the towing device 16 starts to be applied to the braking device 18 at a position a predetermined distance before the barrier 13 to start the braking of the towing device 16 and at the same time. The state which disconnects the vehicle 11 from is shown.

In the state (d), when the vehicle 11 collides with the barrier 13, the braking device 18 continues to brake the towing device 16 and the towing device 16 is applied with the towing device 17 to brake the towing device 17. Indicates.

FIGS. 8 (a) and 8 (b) are second operation diagrams for explaining the operation of the vehicle collision test apparatus according to the present invention.
Is a towing device 16 and a tensioning device 17 shown in FIG.
7B is an enlarged view of FIG. 7B, and FIG.
3 is an enlarged view of the tension device 17. FIG. In (a), the hook 31 of the towing device 16 is disengaged from the front connecting wire 22, and the hook 62 of the pulling device 17 is disengaging from the rear connecting wire 23.

In (b), when the cable 21 is sent forward, a frictional force is generated between the cable 21 and the intermediate members 34, 34 due to the weight of the cable 21. At this time, if the intermediate member 34 on the pulling device 17 side is made lower than the intermediate member 34 on the pulling device 16 side, the frictional force between the cable 21 and the intermediate member 34 on the pulling device 17 side can be reduced, The advancing speed of the pulling device 17 toward the barrier 13 can be slower than the advancing speed of the pulling device 16 toward the barrier 13 side.

Therefore, as the towing device 16 advances, the hook 31 can be hooked on the front connecting wire 22, and as a result, the vehicle 11 (FIG. 7 (b)) is pulled by the towing device 16.
The rear connecting wire 23 can be hooked on the hook 62 by pulling the vehicle 11 and further pulling the vehicle 11, and the pulling device 17 can apply a pulling force to the rear of the vehicle 11.

9 (a) and 9 (b) are third action diagrams for explaining the action of the vehicle collision test apparatus according to the present invention.
Is an enlarged view of the towing device 16 shown in FIG. 7 (c), (b)
FIG. 8 is an enlarged view of the towing device 16 shown in FIG.
In (a), when the tip of the slide member 32 of the towing device 16 hits the mass 54 of the braking device 18, the mass 54
Moves in the direction of the white arrow against the elastic force of the spring 55 (see FIG. 5), and the braking device 18 cushions the impact of the towing device 16 at the time of collision. At the same time, the slide member 32 begins to drop from the slide member holding portions 33, 33 in the direction of the arrow.

As a result, the roller 4 of the slide member 32 is
The intermediate member 34 placed on the cables 3, 43 starts descending together with the cable 21. Further, since the hook tilting bar 57 of the braking device 18 hits the front part of the hook 31, the descent of the cable 21 described above is also assisted, and the hook 31 starts to fall about the support shaft 42 in the direction of the arrow. In this way
The hook 31 starts to come off from the front connecting wire 22.

In (b), when the towing device 16 is further moved, the tip of the slide member 32 moves the mass 54 further forward and the slide member 32 drops.
Along with this, the intermediate member 34 and the cable 21 are further lowered, and the hook tilting bar 57 further pushes down the hook 31, so that the hook 31 is hidden under the traveling road surface 12a immediately before the vehicle collides, and at the time of the collision. And the hook 31 after the collision
Keeps that state.

FIG. 10 is a fourth action diagram for explaining the action of the vehicle collision test device according to the present invention, and is an enlarged view of the tension device 17 shown in FIG. 7 (d). Immediately before and after the collision of the vehicle, the slide member 32 of the tension device 17 collides with the rear portion of the towing device 16. As a result, the slide member 32 falls from the slide member holding portions 63, 63, and accordingly, the intermediate member 34 and the cable 21 fall. As a result, there is nothing below the hook 62 that restricts the rotation of the hook 62, and the inertial force at the time of collision acts on the hook 62, causing the hook 62 to fall about the support shaft 67 in the direction of the arrow, and Hide under 12a.

FIG. 11 is a fifth action diagram for explaining the action of the vehicle collision test apparatus according to the present invention.
Immediately after the collision with 3, the bounce-back on the barrier 13 and the obliquely retracted state are shown. At this time, since the hooks 31 and 62 do not project on the traveling road surface 12a, the vehicle 11 does not hit immediately after the collision. Further, since the width of the slit 52 is reduced, the wheels 11d ... Are not fitted in the slit 52.

As described above with reference to FIG. 1, FIG. 3, FIG. 4 and FIG.
In the vehicle collision test apparatus 10 in which the vehicle 11 is towed to the vicinity of the barrier 13 and the vehicle 11 is separated from the towbar 16 at a position a predetermined distance from the barrier 13, the towbar 16 and the towbar 16 are separated. The guide rail 26 that guides the vehicle to the vehicle is disposed below the traveling road surface 12a on which the vehicle 11 travels.

By arranging the towing device 16 and the guide rail 26 below the traveling road surface 12a, the collision test of the vehicle 11 can be carried out more accurately without obstructing the traveling of the vehicle 11.

Secondly, the present invention is characterized in that the towing device 16 is provided with a hook 31 for hanging the front connecting wire 22, and the width WH of the hook 31 is made smaller than the width WR of the guide rail 26. Thereby, the width W of the hook 31
H can be made smaller. For example, if a slit 52 for moving the hook 31 is provided on the traveling path 12 on which the vehicle 11 travels, the width WS of the slit 52 can be made smaller. Therefore, it is possible to prevent the wheel 11d (see FIG. 11) of the vehicle 11 that has collided from fitting into the slit 52.

Thirdly, according to the present invention, a concave portion 15 for accommodating at least the traction device 16 and the guide rail 26 is formed on the traveling road surface 12a, and among the upper openings of the concave portion 15,
It is characterized in that it is covered with a removable cover 14 except at least a portion where the hook 31 moves. By removing the cover 14, the traction device 16 and the guide rail 26 in the recess 15 can be easily maintained.

[0035]

The present invention has the following effects due to the above configuration. The vehicle collision test apparatus according to claim 1, further comprising a towing means,
Since the guide rail that guides this towing means to the barrier is arranged below the road surface on which the test vehicle travels, it is possible to carry out the collision test of the test vehicle more accurately without obstructing the travel of the test vehicle. You can

In the vehicle collision test apparatus of the second aspect, the towing means is provided with the hook for hanging the test vehicle connecting wire, and the width of the hook is made smaller than the width of the guide rail.
When a gap for moving the hook is provided on the running path on which the test vehicle runs, the width of this gap can be reduced, and the wheels of the colliding test vehicle can be prevented from fitting into the gap.

According to another aspect of the vehicle collision test apparatus of the present invention, a recess for accommodating at least the traction means and the guide rail is formed on the traveling road surface, and the upper opening of the recess is detached except at least the portion where the hook moves. Since the cover is closed by a possible cover, the pulling means and the guide rail in the recess can be easily maintained by removing the cover.

[Brief description of drawings]

FIG. 1 is a side view of a vehicle collision test device according to the present invention.

FIG. 2 is a plan view of a vehicle collision test device according to the present invention.

FIG. 3 is a side view of the towing device according to the present invention.

FIG. 4 is a sectional view taken along line 4-4 of FIG.

FIG. 5 is a sectional view of a braking device according to the present invention.

FIG. 6 is a side view of a tensioning device according to the present invention.

FIG. 7 is a first operation diagram illustrating the operation of the vehicle collision test device according to the present invention.

FIG. 8 is a second action diagram for explaining the action of the vehicle collision test device according to the present invention.

FIG. 9 is a third action diagram for explaining the action of the vehicle collision test device according to the present invention.

FIG. 10 is a fourth action diagram for explaining the action of the vehicle collision test device according to the present invention.

FIG. 11 is a fifth action diagram for explaining the action of the vehicle collision test device according to the present invention.

[Explanation of symbols]

10 ... Vehicle collision test device, 11 ... Test vehicle (vehicle), 12
a: traveling road surface, 13 ... barrier, 14 ... cover, 15 ... recess, 16 ... towing means (towing device), 22 ... test vehicle connecting wire (front connecting wire), 26 ... guide rail,
31 ... Hook, WH ... Width of hook, WR ... Width of guide rail.

Claims (3)

[Claims] 1. A vehicle collision test apparatus for pulling a test vehicle to the vicinity of a barrier using a towing means and disconnecting the test vehicle from the towing means at a position a predetermined distance from the barrier, wherein the towing means comprises: A vehicle collision test apparatus characterized in that a guide rail for guiding the towing means to the barrier is arranged below a traveling road surface on which the test vehicle travels. 2. The collision test apparatus for a vehicle according to claim 1, wherein the towing means is provided with a hook for hanging a test vehicle connecting wire, and the width of the hook is smaller than the width of the guide rail. . 3. A recess that accommodates at least the towing means and the guide rail is formed on the traveling road surface, and a cover that is detachable except an upper opening of the recess except at least a portion where the hook moves. The vehicle collision test apparatus according to claim 1 or 2, wherein the vehicle collision test apparatus is closed.