JP7117130B2 - Car crash test trolley and car crash simulation test equipment - Google Patents

Description

The present invention relates to an automobile collision test trolley and an automobile collision simulation test apparatus that reproduces the acceleration generated in the passenger compartment at the time of collision without destroying the automobile, and reproduces the degree of injury to the occupants due to the secondary collision.

In general, automobile crash tests include actual vehicle crash tests to evaluate physical quantities such as the amount of crash and the amount of remaining space in the passenger compartment, as well as occupant injury values. is a destructive test and is very costly. For this reason, a white body equipped with a dummy, an airbag, etc., a simulated car body, etc. are mounted on a trolley (sled), and the acceleration applied to the sled is approximately the same as that of a real car collision, and the impact acting on the test body is measured. Vehicle collision simulation tests are conducted to non-destructively reproduce the degree of collision to evaluate occupant injury values and develop safety devices such as airbags.

As such an automobile collision simulation test device, for example, there is one described in Patent Document 1 below. The automobile collision simulation test device described in Patent Document 1 includes a sled on which a test object can be mounted and which moves on a rail along a horizontal front-rear direction, a launcher capable of launching a piston toward the sled, It has

JP 2012-002699 A

In the automobile collision simulation test device as described in Patent Document 1, the sled moves while sliding on the rail. For example, after the sled has been launched, when returning the sled to the firing start position, the sled is pulled in the opposite direction while sliding on the rail. In this case, since sliding friction occurs between the sled and the rail, it is necessary to connect the sled with a roller chain or a winch, for example, to pull the sled with a large pulling force.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an automobile collision test trolley and an automobile collision simulation test apparatus that can move easily and smoothly on rails.

An automobile collision test trolley according to the present invention includes a trolley body on which a test object can be mounted and which can move on rails arranged along a horizontal front-back direction; a rolling member capable of switching between a rollable state in which it is arranged to roll on the rail in a lifted state and a non-contact state in which it is arranged in a non-contact state with respect to the rail; is launched by the launcher and slides on the rail during the test period of the automobile collision simulation test, the rolling member is in the non-contact state, and during the movement during the non-test period different from the test period, the and a control device that puts the rolling member in the rollable state.

Therefore, since the rolling member rolls on the rail, the bogie body can move. Therefore, when the bogie body is moved on the rail, the frictional force acting on the bogie body is rolling friction, which is smaller than sliding friction. It will be. Therefore, the driving force acting on the carriage body can be reduced. This allows easy and smooth movement on the rail.

Further, the driving device is provided in the bogie body and applies a driving force to the bogie body, and the control device controls the driving device to drive the rolling member when the rolling member is in the rollable state during the non-test period. The driving force may be applied to the carriage body.

Therefore, since the sled itself is provided with a driving device, there is no need to connect a roller chain, winch, or the like to the sled when the sled is moved during the non-test period. Thereby, a worker's burden can be reduced.

Further, the drive device has a motor device and a transmission member connected to an output shaft of the motor device to transmit rotation of the output shaft, and the transmission member is in a transmission state in contact with a side surface of the rail. , and a non-transmitting state away from the side surface of the rail, and the control device places the transmission member in the non-transmitting state during the test period, and keeps the rolling member in the non-test period. When it is in the rollable state, the transmission member may be in the transmission state.

Therefore, since the transmission member is in a non-transmitting state during the test period, it is possible to provide a configuration that does not hinder the movement of the sled during the test period.

An automobile collision simulation test apparatus according to the present invention includes the automobile collision simulation test truck described above, and a launching device that launches the truck main body of the automobile collision simulation test truck to perform an automobile collision simulation test.

Therefore, since the test is performed using the vehicle collision simulation test cart that can easily and smoothly move the sled during the non-test period, the burden on the operator is reduced, and the automobile collision simulation test can be performed easily and smoothly. It can be carried out.

Advantageous Effects of Invention According to the present invention, it is possible to provide an automobile collision test truck and an automobile collision simulation test apparatus that can easily and smoothly move on rails.

FIG. 1 is a schematic configuration diagram showing an example of an automobile collision simulation test apparatus according to this embodiment. FIG. 2 is a plan view showing an example of a truck. FIG. 3 is a side view showing an example when the carriage is viewed from the opposite side (rear) of the launch device. FIG. 4 is a cross-sectional view showing an example of a slider and a rolling device. FIG. 5 is a cross-sectional view showing an example when the rolling member moves downward. FIG. 6 is a flow chart showing the operation flow of the automobile collision simulation test device. FIG. 7 is a diagram showing the process of operation of the automobile collision simulation test device. FIG. 8 is a diagram showing the process of operation of the automobile collision simulation test device. FIG. 9 is a diagram showing the process of operation of the automobile collision simulation test device. FIG. 10 is a diagram showing the process of operation of the automobile collision simulation test device. FIG. 11 is a cross-sectional view showing a slider and a rolling device according to a modification. FIG. 12 is a schematic configuration diagram showing an automobile collision simulation test device according to a modification.

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of an automobile collision test trolley and an automobile collision simulation test apparatus according to the present invention will be described below with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, components in the following embodiments include components that can be easily replaced by those skilled in the art, or components that are substantially the same.

FIG. 1 is a schematic configuration diagram showing an example of an automobile collision simulation test device 100 according to this embodiment. As shown in FIG. 1 , an automobile collision simulation test apparatus 100 includes a sled (car collision simulation test truck) 10 , a launcher 20 , a rail section 30 , and a control device 40 .

The sled 10 includes a sled body (carriage body) 11 , a slider 12 , a rolling device 13 and a driving device 14 . FIG. 2 is a plan view showing an example of the sled 10. FIG. FIG. 3 is a side view showing an example of the sled 10 viewed from the opposite side (rear) of the launching device 20. As shown in FIG. As shown in FIGS. 2 and 3, the sled body 11 is a frame member having plate members with a predetermined thickness. The sled body 11 has a top surface on which a specimen 15 can be mounted. This specimen 15 is, for example, an automobile having only a skeleton, a so-called body in white, and is fitted with accessories such as a seat, steering wheel, airbag, seat belt, etc., and a dummy. The specimen 15 is placed at a predetermined position on the sled body 11 and fixed by a fixture (not shown).

In the present embodiment, the front of the automobile, which is the specimen 15 (left direction in FIG. 1), is the front of the sled body 11, and the rear of the automobile, which is the specimen 15 (right direction in FIG. 1), is the rear of the sled body 11. explain. The sled body 11 has a rectangular shape elongated in the front-rear direction when viewed from above. Moreover, in this embodiment, the direction perpendicular to the horizontal plane will be described as the vertical direction.

The slider 12 is arranged on the bottom surface 11 a of the sled body 11 . The slider 12 moves while sliding on the two rails 31 and 32 of the rail portion 30 . For example, the sliders 12 are arranged one by one at positions corresponding to the four corners on the bottom surface 11a of the sled body 11, but the present invention is not limited to this.

FIG. 4 is a cross-sectional view showing an example of the slider 12 and the rolling device 13. As shown in FIG. As shown in FIG. 4, the bottom surface 12a of the slider 12 is provided with a concave portion 12b. The rolling device 13 is housed in the recess 12b. As the rolling device 13, for example, a ball air lifter or the like is used. The rolling device 13 has a rolling member 13a, a receiving member 13b, and a lifter 13c. The rolling member 13a can roll on the rails 31,32. The rolling member 13a has, for example, a spherical shape, but is not limited to this, and may have any shape that can roll on the rails 31 and 32, such as columnar, cylindrical, disk-like, or annular shape. It may be in shape. The receiving member 13b rollably supports the rolling member 13a. The receiving member 13b is supported by the lifter 13c. The lifter 13c raises and lowers the rolling member 13a and the receiving member 13b using, for example, air pressure as a driving source. When the rolling member 13a is arranged at the raised position as shown in FIG. 4, the rolling member 13a is housed in the recessed portion 12b of the slider 12 and is out of contact with the rails 31 and 32 ( non-contact state).

FIG. 5 is a cross-sectional view showing an example of a state in which the rolling member 13a has moved downward. As shown in FIG. 5, the lifter 13c can integrally move the rolling member 13a and the receiving member 13b to a lowered position where a part of the rolling member 13a protrudes downward from the bottom surface 12a of the slider 12. is. The rolling member 13a protrudes downward from the slider 12 so that it can roll (rollable state) on the rails 31 and 32 while the sled body 11 is lifted.

In this way, the rolling member 13a is housed in the recessed portion 12b of the slider 12 by the lifter 13c and is in a non-contact state (see FIG. 4) in which it is not in contact with the rails 31 and 32, and protrudes downward from the slider 12. It is possible to switch between a rollable state (see FIG. 5) in which the sled body 11 is lifted and rollable on the rails 31 and 32 .

The driving device 14 is provided on the sled body 11 and applies a driving force to the sled body 11 in the front-rear direction. The driving devices 14 are arranged, for example, at two locations along the rear edge of the sled body 11 . Each drive device 14 has a motor device 14a, an output shaft 14b, a transmission member 14c, and a slide mechanism 14d. The motor device 14a is provided as a drive source and rotates the output shaft 14b. The transmission member 14c is fixed to the output shaft 14b and rotates integrally with the output shaft 14b to transmit the driving force of the motor device 14a. The slide mechanism 14d moves the motor device 14a in the left-right direction. By moving the motor device 14a, the slide mechanism 14d moves the transmission member 14c to contact or press the inner side surfaces 31b and 32b of the rails 31 and 32, and the inner side surfaces of the rails 31 and 32. 31b, 32b can be switched to a position away from 31b, 32b. When the transmission member 14c contacts or presses the inner side surfaces 31b, 32b, the transmission member 14c is in a state (transmissible state) in which the driving force of the motor device 14a can be transmitted to the inner side surfaces 31b, 32b. ). Further, when the transmission member 14c is separated from the inner side surfaces 31b and 32b, the transmission member 14c enters a state (non-transmission state) in which the driving force of the motor device 14a is not transmitted to the inner side surfaces 31b and 32b. The transmission member 14c is provided so as to be switchable between a transmissible state and a non-transmissible state by means of a slide mechanism 14d.

The sled body 11 has a reaction plate 16 at its bottom. One end of the reaction plate 16 is fixed to the bottom of the sled body 11 and the other end is bent and arranged below the rails 31 and 32 . The reaction plate 16 prevents the sled body 11 from falling off the rails 31 and 32 . A vertical gap is provided between the portion of the reaction plate 16 that is arranged below the rails 31 and 32 and the rails 31 and 32 . This gap is set to a dimension such that the reaction plate 16 does not come into contact with the rails 31 and 32 when the sled body 11 is lifted by the rolling member 13a. In other words, the amount by which the sled body 11 is lifted by the rolling member 13a is smaller than the gap between the reaction plate 16 and the rails 31,32. The sled body 11 has a braking device (not shown). A brake device has a brake piston and a brake pad. The brake piston floats the sled body 11 to keep the slider 12 out of contact with the rails 31 and 32 . The brake pads clamp the rails 31 and 32 from above and below when the sled body 11 is floated.

The launch device 20 has a device body 21 and a piston rod 22 . The device body 21 has a hydraulic mechanism that drives the piston rod 22 by hydraulic pressure, for example. The piston rod 22 moves in the front-rear direction by driving the device body 21 and imparts rearward acceleration to the sled body 11 .

The rail portion 30 has the two rails 31 and 32 described above. The rails 31 , 32 guide the sled body 11 . Rails 31 , 32 are connected to air pallet 33 . Air pallet 33 has connecting rails 34, 35 connected to rails 31, 32, respectively. The air pallet 33 can be transported to and from the outside while the sled body 11 is placed on the connection rails 34 and 35 . A stopper 36 is arranged behind the air pallet 33 . The stopper 36 restricts the rearward movement of the sled body 11 .

A controller 40 controls the operation of the sled 10 and launcher 20 described above. The control device 40 has a launcher control section 41 , a lifter control section 42 and a motor control section 43 . The launcher control section 41 controls the operation of the device body 21 of the launcher 20 . The lifter control section 42 controls the operation of the lifter 13 c of the rolling device 13 . The motor control unit 43 controls the operation of the motor device 14a of the drive device 14. FIG. An input device 44 is connected to the control device 40, for example, for an operator to operate the automobile collision simulation test device 100 and to input information.

Next, the operation of the automobile collision simulation test device 100 configured as described above will be described. FIG. 6 is a flow chart showing the operation flow of the automobile collision simulation test device 100. As shown in FIG. 7 to 10 are diagrams showing the process of operation of the automobile crash simulation test device 100. FIG. Prior to the operation of the automobile crash simulation test device 100, the sled body 11 is moved to the test start position P1 (see FIGS. 1 and 7).

As shown in FIG. 6, first, the launching device control unit 41 controls the device main body 21 of the launching device 20 to apply acceleration backward to the sled main body 11 placed at the test start position P1. The thread body 11 is driven out (step S10). In step S10, the sled body 11 moves rearward while the slider 12 is lifted from the rails 31 and 32 by the brake piston of the brake device and the rails 31 and 32 are clamped from above and below by the brake pads. Due to the friction between the brake pads and the rails 31 and 32, the sled body 11 gradually slows down and stops as shown in FIG.

After the sled body 11 stops, the brake piston and brake pad of the brake device are released, and the lifter control section 42 causes the rolling member 13a to lift the sled body 11 (step S20). In step S20, as shown in FIG. 8, the lifter 13c moves the rolling member 13a and the receiving member 13b downward, so that part of the rolling member 13a protrudes downward from the bottom surface 12a of the slider 12. As shown in FIG. Therefore, the sled body 11 is lifted by the rolling member 13a and is supported by the rolling member 13a on the upper surfaces 31a and 32a of the rails 31 and 32. As shown in FIG. By being supported by the receiving member 13b, the rolling member 13a is in a rollable state in which the sled body 11 is lifted. The amount of movement of the rolling member 13a and the receiving member 13b that are moved downward by the lifter 13c can be set in advance, for example.

After the rolling member 13a becomes rollable, the motor control unit 43 presses the transmission member 14c of the driving device 14 against the inner side surfaces 31b, 32b of the rails 31, 32 (step S30). In step S30, as shown in FIG. 9, the motor device 14a is moved laterally outward by the slide mechanism 14d. This movement causes the output shaft 14b and the transmission member 14c to move together with the motor device 14a toward the rails 31 and 32, and the transmission member 14c is pressed against the inner side surfaces 31b and 32b.

After the transmission member 14c is pressed against the inner side surfaces 31b and 32b, the motor control section 43 rotates the motor device 14a (step S40). In step S40, the rotation of the motor device 14a rotates the output shaft 14b and the transmission member 14c together. As the transmission member 14c rotates, a frictional force is generated between the inner side surfaces 31b and 32b of the rails 31 and 32 in the front-rear direction. Due to this frictional force, as shown in FIG. 10, the sled body 11 moves forward while the rolling member 13a rolls. In this case, rolling friction is generated between the rolling member 13a and the upper surfaces 31a and 32a of the rails 31 and 32 .

After the sled main body 11 is moved, the motor control unit 43 determines whether or not there is an instruction to stop the rotation of the motor device 14a (step S50). For example, the operator can visually confirm the position of the sled body 11 and input a stop instruction via the input device 44 when the sled body 11 approaches the test start position P1. In this case, the motor control unit 43 determines whether or not there is a stop instruction from the input device 44 in step S50. When the motor control unit 43 determines that there is no instruction to stop the rotation of the motor device 14a (No in step S60), the determination in step S50 continues. Further, when the motor control unit 43 determines that there is an instruction to stop the rotation of the motor device 14a (Yes in step S50), the motor control unit 43 stops the rotation of the motor device 14a (step S60). By step S60, movement of the sled main body 11 is stopped as the rotation of the motor device 14a is stopped.

After the sled main body 11 stops, the motor control section 43 brings the transmission member 14c into the non-contact state (step S70). In step S<b>70 , the motor control unit 43 moves the motor device 14 a inward in the left-right direction so that the transmission member 14 c separates from the inner side surfaces 31 b and 32 b of the rails 31 and 32 .

After setting the transmission member 14c to the non-contact state, the lifter control unit 42 returns the rolling member 13a to the accommodation position (step S80). In step S<b>80 , the sled body 11 raises the rolling member 13 a so that the lower portion of the rolling member 13 a is housed in the slider 12 . As a result, the bottom surface 12 a of the slider 12 lands on the rails 31 and 32 , and the sled body 11 is supported by the rails 31 and 32 via the slider 12 .

As described above, the sled 10 according to the present embodiment can mount the test piece 15 and can move on the rails 31 and 32 arranged along the horizontal front-rear direction. and a rollable state in which the sled body 11 is lifted so as to be able to roll on the rails 31 and 32, and a non-contact state in which the sled body 11 is not in contact with the rails 31 and 32. and the rolling member 13a is in a non-contact state during the test period of the automobile collision simulation test in which the sled body 11 is launched by the launching device 20 and slides on the rails 31 and 32, A control device 40 is provided for setting the rolling member 13a to a rollable state during movement during a non-test period different from the test period.

Therefore, the rolling member 13a rolls on the rails 31 and 32 to allow the sled body 11 to move. , the rolling friction is smaller than the sliding friction. Therefore, the driving force acting on the sled body 11 can be reduced. As a result, the sled body 11 can be easily and smoothly moved on the rails 31 and 32 .

Further, the sled 10 according to the present embodiment is provided with the sled body 11 and includes the driving device 14 that applies a driving force to the sled body 11, and the control device 40 controls the rolling member 13a to be in a rollable state during the non-test period. , the drive device 14 applies a driving force to the sled body 11 . Therefore, since the sled body 11 itself is provided with the driving device 14, there is no need to connect a roller chain, winch, or the like to the sled body 11 when the sled body 11 is moved during the non-test period. Thereby, a worker's burden can be reduced.

Further, in the sled 10 according to the present embodiment, the driving device 14 has a motor device 14a and a transmission member 14c connected to the output shaft 14b of the motor device 14a and transmitting rotation of the output shaft 14b. is arranged to be switchable between a transmission state in which the transmission member 14c is in contact with the inner surfaces 31b and 32b of the rails 31 and 32 and a non-transmission state in which the transmission member 14c is separated from the inner surfaces 31b and 32b of the rails 31 and 32. 2 sets the transmission member 14c in the non-transmission state during the test period, and sets the transmission member 14c in the transmission state when the rolling member 13a is in the rollable state during the non-test period. Therefore, since the transmission member 14c is in a non-transmitting state during the test period, it is possible to provide a configuration that does not hinder the movement of the sled body 11 during the test period.

An automobile collision simulation test apparatus 100 according to the present invention includes the above-described sled 10 and a launcher 20 that shoots out the sled body 11 of the sled 10 to perform an automobile collision simulation test. Therefore, since the test is performed using the sled 10 in which the sled body 11 can be easily and smoothly moved during the non-test period, the burden on the operator is reduced, and the automobile collision simulation test can be easily and smoothly performed. can be done.

The technical scope of the present invention is not limited to the above embodiments, and modifications can be made as appropriate without departing from the scope of the present invention. For example, in the above-described embodiment, the configuration in which the rolling device 13 is accommodated in the recess 12b provided in the bottom of the slider 12 has been described as an example, but the present invention is not limited to this.

FIG. 11 is a cross-sectional view showing a slider and a rolling device according to a modification. In the sled 110 shown in FIG. 11, the bottom of the slider 112 is not recessed, and the rolling device 113 is attached to the side of the slider 112 . The rolling device 113 has a rolling member 113a, a receiving member 113b, a lifter 113c, and an attachment member 113d, and is attached to the slider 112 by the attachment member 113d. The rolling device 113 is placed in a non-contact state by disposing the rolling member 113a above the bottom of the slider 112 by the lifter 113c. In addition, the rolling device 113 is placed in a rollable state by disposing the rolling member 113a more open than the bottom of the slider 112 by the lifter 113c. The rolling device 113 may be detachable from the slider 112 . As a result, the configuration including the rolling device 113 can be achieved without making any particular design change to the slider 112 .

Also, FIG. 12 is a schematic configuration diagram showing an automobile collision simulation test apparatus according to a modification. In the above embodiment, when the rolling member 13a (113a) and the receiving member 13b (113b) are moved downward by the lifter 13c (113c) in order to make the rollable state, the moving distance is set in advance as an example. Although mentioned and explained, it is not limited to this. A movement distance sensor S1 may be provided in the sled body 11 of the sled 210 as in the automobile collision simulation test device 200 shown in FIG. The movement distance sensor S<b>1 detects the movement distance of the rolling member 13 a and the receiving member 13 b moved by the lifter 13 c and transmits the detection result to the control device 40 . When receiving the detection result of the movement distance sensor S1, the lifter control unit 42 can feedback-control the lifter 13c based on the detection result.

Further, in the above-described embodiment, the case where the operator inputs the stop timing using the input device 44 when stopping the drive of the motor device 14a has been described as an example, but the present invention is not limited to this. A position detection sensor S2 may be provided on the sled body 11 of the sled 210 as in the automobile collision simulation test device 200 shown in FIG. The position detection sensor S2 detects the longitudinal position of the sled body 11 that is moved by the driving force of the motor device 14a, and transmits the detection result to the control device 40. FIG. When receiving the detection result of the position detection sensor S2, the motor control unit 43 can control the stop position of the motor device 14a based on the detection result. As a result, the sled body 11 can be automatically moved.

Further, in the above-described embodiment, the configuration in which the motor device 14a is provided as the drive source of the drive device 14 has been described as an example, but the present invention is not limited to this, and other drive sources may be used. Further, in the above-described embodiment, the configuration in which the transmission member 14c can switch between the transmission state and the non-transmission state with respect to the inner side surfaces 31b and 32b of the rails 31 and 32 has been described as an example, but the present invention is not limited to this. , the transmission member 14c may be switchable between the transmission state and the non-transmission state with respect to positions different from the inner side surfaces 31b, 32b of the rails 31, 32. Further, in the above embodiment, the configuration in which the driving device 14 is provided in the sled body 11 has been described as an example, but the present invention is not limited to this, and the driving device may be arranged at a position different from the sled body 11 .

10, 110, 210 Thread 11 Thread body 11a Bottom surface 12, 112 Slider 12a Bottom surface 12b Concave portion 13, 113 Rolling device 13a, 113a Rolling member 13b, 113b Receiving member 13c, 113c Lifter 14 Driving device 14a Motor device 14b Output shaft 14c Transmission member 14d Slide mechanism 15 Specimen 16 Reaction plate 20 Launcher 21 Apparatus main body 22 Piston rod 30 Rails 31, 32 Rails 31a, 32a Upper surface 31b, 32b Inner surface 33 Air pallet 34, 35 Connection rail 36 Stopper 40 Control device 41 launcher control unit 42 lifter control unit 43 motor control unit 44 input device 100, 200 automobile collision simulation test device 113d mounting member P1 test start position S1 movement distance sensor S2 position detection sensor

Claims (4)

a trolley body on which a test object can be mounted and which can move on rails arranged along the horizontal front-back direction;
A rollable state in which the truck body is provided so as to be able to roll on the rail when the truck body is lifted, and a non-contact state in which the rail is arranged in a non-contact state with respect to the rail. a switchable rolling member;
During the test period of the automobile collision simulation test in which the truck body is launched by the launching device and moves while sliding on the rail, the rolling members are set in the non-contact state, and during the movement during the non-test period different from the test period. and a control device for setting the rolling members to the rollable state. a driving device provided on the bogie body and applying a driving force in the front-rear direction to the bogie body;
2. The truck for automobile collision simulation test according to claim 1, wherein the control device causes the driving device to apply the driving force to the truck main body when the rolling member is in the rollable state in the non-test period. . The drive device has a motor device and a transmission member connected to an output shaft of the motor device for transmitting rotation of the output shaft,
The transmission member is arranged so as to be switchable between a transmission state in contact with the side surface of the rail and a non-transmission state away from the side surface of the rail,
The control device places the transmission member in the non-transmission state during the test period, and places the transmission member in the transmission state when the rolling member is in the rollable state during the non-test period. Item 3. The trolley for automobile collision simulation test according to item 2. A vehicle collision simulation test trolley according to any one of claims 1 to 3;
An automobile collision simulation test apparatus comprising: a launching device for launching the truck main body of the automobile collision simulation test truck to conduct an automobile collision simulation test.

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