JP2003021575A - Vehicle-collision testing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle-collision testing apparatus by which the space between a right guide rail and a left guide rail can be used effectively, by arranging a traction means between the right and left guide rails. SOLUTION: In the vehicle-collision testing apparatus, a vehicle is pulled to a part near a barrier by using a traction device 16, and the vehicle is separated from the traction device 16 in the halfway part of its traction, to make the vehicle collide with the barrier. The right and left rails 26 are installed near a running road surface 12a, on which the vehicle is run in order to guide the traction device 16 to the barrier, and the traction device 16 is suspended freely runnable between the guide rails 26.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle collision test apparatus suitable for effectively utilizing a space used for a collision test.

[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, if the portion protruding above the floor surface can be arranged, for example, below the floor surface, the test accuracy can be increased and the space can be effectively used.

Therefore, it is an object of the present invention to improve the vehicle collision test apparatus so that the space used for the collision test can be effectively utilized.

[0006]

In order to achieve the above object, the first aspect of the present invention is to draw a test vehicle to the vicinity of the barrier by using a towing means, disconnect the test vehicle from the towing means in the middle of the towing, and to the barrier. In a vehicle collision test device that causes a collision, left and right guide rails are provided near the road surface on which the test vehicle travels to guide the towing means to the barrier, and the towing means is suspended between these left and right guide rails so that the towing means can travel freely. It is characterized by By arranging the towing means between the left and right guide rails, the space between the guide rails can be effectively used.

According to a second aspect of the present invention, there is provided a main traction portion movably attached to the guide rail via a wheel, to the traction means.
A hook that is swingably attached to this main towing part and hangs on a wire that is connected to the test car, a slide member that is attached to the main towing part so that it can move a certain distance, and a main towing part to hold this slide member at a high position. A structure including a slide member holding portion provided, and a cable adapted to be sent to the barrier side for moving the towing means to the barrier side is sandwiched between the slide member mounted on the slide member holding portion and the hook. Then, the slide member is moved and dropped from the slide member holding portion to release the connection between the hook and the wire and release the connection between the pulling means and the cable.

Since the traction means has a mechanism for releasing both the connection between the hook and the wire and the connection between the traction means and the cable, the number of parts can be reduced as compared with the case where the respective release mechanisms are provided separately. Therefore, the cost can be reduced.

[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 portion 28 is a member in which reinforcing plates 51, 51 are attached to both sides of a main body 48 having a U-shaped cross section, and wheels 27, 27 are rotatably attached to the reinforcing plates 51, 51, respectively.

Reference numerals 14 and 14 in the drawing denote covers detachably attached to the traveling road surface 12a by bolts 14a ... To close the upper opening of the recess 15, respectively, from both ends of the recess 15 to the hook 31 side. 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 includes 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 the vehicle 11 is applied with a rearward pulling force by the tensioning device 17.

In (c), just 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 braking of the towing device 16 and tow it. 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. 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 FIGS. 1, 3 and 4, the present invention firstly draws the vehicle 11 to the vicinity of the barrier 13 by using the towing device 16, and the vehicle 11 is pulled during the towing. In the vehicle collision test device 10 that is separated from the towing device 16 and collides with the barrier 13, the towing device 16
In order to guide the vehicle to the barrier 13, the left and right guide rails 26 are provided in the vicinity of the traveling road surface 12a on which the vehicle 11 travels, specifically below the traveling road surface 12a, and the towing device 16 can travel freely between these left and right guide rails 26. It is characterized by being hung on. Install the towing device 16 on the left and right guide rails 2.
By disposing between the six guide rails 26, the space between the guide rails 26 can be effectively used.

Secondly, the present invention relates to a main towing portion 28 movably attached to a guide rail 26 via a wheel 27 to a towing device 16 and a swingable attachment to the main towing portion 28 and connection to a vehicle 11. A hook 31 to be hooked on the front connecting wire 22, a slide member 32 attached to the main towing portion 28 so as to be movable by a certain distance, and a slide member holding provided to the main towing portion 28 for holding the slide member 32 at a high position. And a hook portion 31 sandwiching the cable 21 which is provided on the slide member holding portion 33 and which is provided with the portion 33 and which is sent to the barrier 13 side in order to move the towing device 16 to the barrier 13 side. By moving the slide member 32 and dropping it from the slide member holding portion 33, the hook 31 and the front connecting wire 2 Thereby releasing the connection between, and cancels the connection between the traction device 16 and the cable 21.

The towing device 16 includes a hook 31 and a front connecting wire 22, and a towing device 16 and a cable 21.
Since a mechanism for releasing both the connection and the connection is provided, the number of parts can be reduced and the cost can be reduced as compared with the case where each release mechanism is provided separately.

[0033]

The present invention has the following effects due to the above configuration. The vehicle collision test apparatus according to claim 1, wherein left and right guide rails are provided near a traveling road surface on which the test vehicle travels to guide the towing means to the barrier, and the towing means is suspended between the left and right guide rails so that the towing means can travel freely. Since it is lowered, the traction means is arranged between the left and right guide rails, so that the space between the guide rails can be effectively used.

According to another aspect of the vehicle collision test apparatus of the present invention, a main towing portion movably attached to a guide rail via a wheel and a wire to be swingably attached to the main traction portion and connected to a test vehicle. A hook to be hung on the main towing unit, a slide member attached to the main towing unit so as to be movable for a certain distance, and a slide member holding unit provided to the main towing unit to hold the slide member at a high position, and the towing means is provided on the barrier side. By having a structure in which the cable, which is sent to the barrier side for movement, is sandwiched between the slide member mounted on the slide member holding portion and the hook, the slide member is moved and dropped from the slide member holding portion. , Release the connection between the hook and the wire,
Since the connection between the traction means and the cable is released, the traction means is provided with a mechanism for releasing both the connection between the hook and the wire and the connection between the traction means and the cable, so that the respective release mechanisms can be separately provided. The number of parts can be reduced and the cost can be reduced as compared with the case where it is provided.

[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, 16 ... towing means (towing device), 21 ... cable, 22 ... wire (front connecting wire), 26 ... guide rail, 27 ... wheel, 28 ...
Main towing part, 31 ... Hook, 32 ... Sliding member, 33
... Slide member holding part.

Claims (2)

[Claims] 1. A vehicle collision test apparatus for towing a test vehicle to the vicinity of a barrier using a towing means, disconnecting the test vehicle from the towing means in the middle of towing, and colliding with the barrier, wherein the towing means is attached to the barrier. Providing left and right guide rails in the vicinity of the road surface on which the test vehicle travels to guide
A vehicle collision test device characterized in that a towing means is suspended between the left and right guide rails so that the towing means can travel freely. 2. The main traction unit, wherein the traction unit is movably attached to the guide rail via a wheel, and a hook attached to the main traction unit so as to be swingable and connected to a test vehicle. A slide member attached to the main traction unit so as to be movable for a certain distance, and a slide member holding unit provided in the main traction unit for holding the slide member at a high position, and for moving the traction means to the barrier side. By having a structure in which the cable that is sent to the barrier side is sandwiched between the slide member and the hook that are placed on the slide member holding portion, the slide member is moved and dropped from the slide member holding portion. A contract characterized by releasing the connection between the hook and the wire and releasing the connection between the traction means and the cable. The vehicle collision test apparatus according to claim 1.