KR101951113B1 - Crash test device of seat back for vehicle - Google Patents

Abstract

According to the present invention, a collision unit, which is installed horizontally and vertically movably in a horizontal frame portion and a vertical frame portion along a horizontal rail portion and a vertical rail portion so as to collide with a bogie unit, is moved to the top of a vertical frame portion by a transfer unit, A collision-unit-side damper portion provided on the collision-unit side for protecting the collision unit and the truck unit at the time of collision, and a collision-unit-side damper portion provided on the collision- Side damper unit, which reduces the installation space and installation cost for the collision test, reduces the maintenance cost of the collision test apparatus, maintains the optimum depreciation speed G value, and improves the accuracy of the crash test And to minimize the damage of each component unit in the event of a collision.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an automotive seat back impact test apparatus, and more particularly, to a crash test apparatus for an automotive vehicle, which comprises a horizontal frame portion and a vertical frame portion horizontally and vertically movable along a horizontal rail portion and a vertical rail portion, The transfer unit moves to the uppermost portion of the vertical frame portion, the position energy caused by the free fall of the collision unit is converted into the kinetic energy, and the collision test of the vehicle seatback is performed, and the collision unit and the truck unit are protected A collision-unit-side damper portion provided on the collision-unit side and a braking-unit-side damper portion provided on the vehicle-unit side reduce the installation space and installation cost for the collision test, reduce the maintenance cost of the collision testing device, Which improves the accuracy of the test and minimizes damage to each component unit in the event of a collision, Stone relates to a test apparatus.

In general, when evaluating a vehicle, not only its power performance but also its safety are becoming important factors. Therefore, each automobile manufacturer and parts supplier are doing a lot of research and experiment to improve automatic safety.

As a result, automobile manufacturers and component suppliers are required to carry out various safety tests to check the safety of automobiles, parts or modified parts developed for the first time in the development of new cars or parts or the improvement of parts, And the degree of completeness is checked according to whether it is appropriate or not.

The safety of an automobile is directly related to the life of a person and is the most influential factor in the completeness of the vehicle. In most countries of the world, the most stringent standards are applied to the safety of the vehicle.

These safety tests include safety tests for seat backs, durability tests for dummy pads, airbag operation tests, and door lock device deformation tests. These tests are carried out in order to make tests as close as possible to actual vehicle conditions, The test is carried out through a slab type impact test apparatus.

Particularly, in the safety test of the seat back during the stability test, when the cargo in the cargo compartment on the lower side of the passenger compartment (mostly the rear seat) collides against the car seat back due to a vehicle shock or other causes, A seat back impact test is conducted to test whether the vehicle can withstand impact.

However, in the conventional automotive seat back impact test, the actual vehicle is placed on a normal impact test equipment, the test block is placed on the seat back, and the test block is fired on the seat back so that the test block collides with the seat back, , And degree of deformation. 1, in the conventional vehicle seatback impact test apparatus, the vehicle impact test apparatus includes a test carriage 3 that rolls on the rail 2, and various kinds of interior materials and sheets 4 similar to an actual vehicle, An actuator 6 for generating shocks and shock waves in actual collision in a state where the body model is seated on the seat 4 provided inside the body model 5 is fixed to the test bed 3 on the front side. It is possible to obtain an impact amount corresponding to the impact time in a situation similar to when the actual vehicle collides due to the shock operation of the actuator 6. [

The collision test equipment for automobile seatbacks satisfies the G value of 24 ~ 30G and the holding time of 20 ~ 30ms is required for accurate collision test prescribed in the regulations.

As described above, since the conventional automotive seatback impact test system requires a hydraulic device to be installed at high speed through the hydraulic or pneumatic pressures to collide with the test block, there is a problem that the space efficiency is reduced due to a lot of installation space there was.

In addition, since the conventional automobile seatback impact test system requires installation of expensive equipment such as hydraulic equipment in order to generate an impact amount, the installation cost of the vehicle seatback impact test apparatus increases, and it is impossible for small and medium enterprises to introduce the same. There was a problem to inhibit.

In addition, the conventional automotive seatback impact test system requires a lot of electric power to be used for high-speed hydraulic impact, which increases the test cost and increases the maintenance cost due to breakdown or breakage of the hydraulic equipment.

In addition, the conventional vehicle seatback impact test apparatus has a problem in that the stability of the vehicle is reduced because the weight of the collision unit is controlled and the G value of the damping unit is controlled and the holding time is difficult to control.

Korean Patent Laid-Open Publication No. 10-1997-0028505

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a collision preventing apparatus which is installed horizontally and vertically on a horizontal frame part and a vertical frame part along a horizontal rail part and a vertical rail part, The transfer unit moves to the uppermost portion of the vertical frame portion, the position energy caused by the free fall of the collision unit is converted into kinetic energy, and the collision test of the vehicle seatback is performed, Side damper portion provided on the collision-unit side and the braking-unit-side damper portion provided on the side of the bogie-unit, thereby reducing the installation space and installation cost for the collision test, reducing the maintenance cost of the collision- It is possible to improve the accuracy of the collision test by maintaining an optimum depres- sion speed G value and to ensure that each constituent unit is damaged at the time of collision To provide an automotive seatback crash test apparatus that can be.

In order to accomplish the object of the present invention, an automotive seat back impact test apparatus according to the present invention comprises a horizontal frame part horizontally installed on the ground and having a horizontal rail part, A vertical frame part having a vertical rail part connected to the horizontal rail part; A balancing unit installed horizontally on the horizontal frame part along the horizontal rail part; A collision unit installed horizontally and vertically movably in the horizontal frame part and the vertical frame part along the horizontal rail part and the vertical rail part to collide with the truck unit; A transfer unit for moving the collision unit up and down the vertical frame part; A control unit; And a damping unit installed on the collision unit and the truck to protect the collision unit, the truck unit, and the horizontal frame when the collision unit collides with the truck unit, A collision-unit-side damper unit installed in the unit; And a braking unit side damper unit provided on the side of the braking unit, wherein a collision test of an automotive seatback is performed by converting kinetic energy into kinetic energy by free fall of the collision unit.

Further, in another preferred embodiment of the vehicle seatback impact test apparatus according to the present invention, the impact unit side damper section of the damping unit of the vehicle seatback impact test apparatus includes a first inner plate installed in the collision unit; A first outer plate installed to face the first inner plate; And a first buffer installed between the first inner plate and the first outer plate.

In another preferred embodiment of the vehicle seatback impact test apparatus according to the present invention, the damper unit of the damping unit of the vehicle seatback impact test apparatus comprises a second inner plate installed on the truck unit; A second outer plate installed to face the second inner plate; And a second buffer installed between the second inner plate and the second outer plate.

Further, in another preferred embodiment of the vehicle seat back impact test apparatus according to the present invention, the damper unit of the damping unit of the vehicle seatback impact test apparatus is provided with a wrinkle portion formed in the middle of the second shock absorber .

In another preferred embodiment of the vehicle seat back impact test apparatus according to the present invention, the impact unit side damper portion and the truck unit side damper portion of the damping unit of the automotive seat back impact test device face each other while corresponding to each other At least one of the collision unit and the truck unit may be installed.

In another preferred embodiment of the vehicle seat back impact test apparatus according to the present invention, the distance between the impact unit side damper section of the damping unit of the vehicle seatback impact test apparatus and the distance between the damper section of the vehicle unit side damper section The collision-unit-side damper unit and the bogie-unit-side damper unit may be provided so as to be equal to each other.

In another preferred embodiment of the vehicle seat back impact test apparatus according to the present invention, the height of the second cushion portion of the damping unit of the automotive seat back impact test apparatus is 1.3 times or more and 2 times or less As shown in FIG.

In another preferred embodiment of the vehicle seat back impact test apparatus according to the present invention, the diameter of the first cushion portion of the damping unit of the automotive seat back impact test apparatus and the diameter of the second cushion portion are formed to be equal to each other .

In another preferred embodiment of the vehicle seat back impact test apparatus according to the present invention, the internal pressures of the first cushion portion and the second cushion portion of the damping unit of the automotive seat back impact test apparatus may be formed identically have.

In another preferred embodiment of the vehicle seat back impact test apparatus according to the present invention, the first inner plate, the first outer plate, the second inner plate, and the second inner plate of the damping unit of the automotive seat back impact test apparatus The second outer plate may be formed of an aluminum alloy.

Further, in another preferred embodiment of the vehicle seat back impact test apparatus according to the present invention, the vehicle seat back impact test apparatus is provided in the frame unit, the collision unit, or the collision unit, And a sensing unit for measuring a moving distance, an acceleration or an elevation height of the collision unit.

In another preferred embodiment of the vehicle seat back impact test apparatus according to the present invention, the sensing unit of the vehicle seatback impact test apparatus is installed in the body portion of the collision unit and the base portion of the collision unit, And an acceleration measuring unit for measuring an acceleration of the truck unit.

In another preferred embodiment of the automotive seat back impact test apparatus according to the present invention, the sensing unit of the automotive seat back impact test apparatus comprises: a height measuring unit installed on the vertical frame for measuring the height of the collision unit; . ≪ / RTI >

In another preferred embodiment of the vehicle seat back impact test apparatus according to the present invention, the sensing unit of the automotive seat back impact test apparatus is provided on the horizontal frame and is provided with a conveyance path for measuring the conveyance distance of the collision unit and the truck unit And a distance measuring unit.

In another preferred embodiment of the seat back impact test apparatus for an automobile according to the present invention, the sensing unit of the vehicle seatback impact test apparatus is provided on the front surface shut-off section of the impact unit to measure the pressure of the impact unit side damper section And a first pressure measuring unit.

In another preferred embodiment of the vehicle seat back impact test apparatus according to the present invention, the sensing unit of the automotive seat back impact test apparatus is provided in the base portion of the conveyance unit and measures the pressure of the damper portion on the side of the car unit And a second pressure measuring unit.

The collision testing device for a vehicle seatback according to the present invention includes a horizontal frame part and a vertical frame part horizontally and vertically movable along a horizontal frame part and a vertical frame part, And the impact energy of the free fall of such a collision unit is converted into kinetic energy so that the collision test of the vehicle seatback is performed and the collision unit and the truck unit are installed on the side of the collision unit The damper unit on the side of the collision unit and the damper unit on the side of the truck unit are provided, thereby reducing the installation space for the collision test and maximizing the space efficiency.

In addition, since the collision test of the seatback of an automobile is performed by converting the kinetic energy into kinetic energy, the automobile seatback impact test apparatus according to the present invention does not require installation of expensive equipment such as hydraulic equipment for generating an impact, It can be easily introduced by SMEs, and it is possible to promote balanced industrial development according to the increase of supply.

Further, the vehicle seatback impact test apparatus according to the present invention minimizes the amount of the strategy used because the power is used only when the crash unit is moved to the upper portion of the vertical frame, thereby reducing the cost of the seatback crash test, So that failure or breakage of the related parts can be prevented and the maintenance cost of the seat back impact test apparatus can be reduced.

Further, in the collision test apparatus for a vehicle seatback according to the present invention, the value of the depres- sion speed G at the time of collision is set to the height of the collision-unit-side damper section provided on the collision-unit side and the height And the formation of a wrinkle portion, the automobile seatback impact test apparatus improves the accuracy of the crash test through various tests according to the reduction of the maintenance cost, thereby remarkably improving the stability of the automobile.

In addition, the automotive seatback impact test apparatus according to the present invention has the effect of reducing the test time by easily adjusting the damping unit and securing the safety and convenience of the experimenter through collision by free fall.

1 is a conceptual diagram of a conventional collision test apparatus for an automobile.
2 is a perspective view of an automotive seat back impact test apparatus according to an embodiment of the present invention.
3 is a conceptual diagram for explaining a section of a horizontal rail part of an automotive seat back impact test apparatus according to an embodiment of the present invention.
4 is a perspective view of a truck unit of an automotive seat back impact test apparatus according to an embodiment of the present invention.
5 is a perspective view of a collision unit in a state where a weight unit is not installed in a collision unit in an automotive seat back impact test apparatus according to an embodiment of the present invention.
6 is a perspective view of the collision unit shown in Fig.
12 is a conceptual diagram of a collision-unit-side damper unit according to an embodiment of the present invention.
13 is a conceptual diagram of a damper unit side damper unit according to an embodiment of the present invention.
14 shows a conceptual diagram of a state in which a damping unit is installed in the collision unit and the truck unit.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a vehicle seatback impact test apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings. The following embodiments are provided by way of example so that those skilled in the art can fully understand the spirit of the present invention. Therefore, the present invention is not limited to the embodiments described below, but may be embodied in other forms. In the drawings, the size and thickness of an apparatus may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. However, it should be understood that the present invention is not limited to the embodiments disclosed herein but may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification. The dimensions and relative sizes of the layers and regions in the figures may be exaggerated for clarity of illustration.

The terminology used herein is for the purpose of describing embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. &Quot; comprise "and / or" comprising ", as used in the specification, means that the presence of stated elements, Or additions.

FIG. 2 is a perspective view of a vehicle seatback impact test apparatus according to an embodiment of the present invention, and FIG. 3 is a sectional view of a horizontal rail of an automotive seatback impact test apparatus according to an embodiment of the present invention. Fig. FIG. 4 is a perspective view of a truck unit of a vehicle seatback impact test apparatus according to an embodiment of the present invention, and FIG. 5 is a perspective view of a collision unit of a vehicle according to an embodiment of the present invention. And FIG. 6 is a perspective view of the collision unit shown in FIG. 5, in which the weight unit is installed. FIG. 12 is a conceptual diagram of a collision-unit-side damper unit according to an embodiment of the present invention, FIG. 13 is a conceptual diagram of a damper unit side damper unit according to an embodiment of the present invention, This figure shows a conceptual diagram of a state in which a unit is installed.

The definitions of terms used below are as follows. Means the longitudinal direction, that is, the X-axis direction in Fig. 2, the "width direction" means the longitudinal direction orthogonal to the longitudinal direction, i.e., the Y-axis direction in Fig. 2, The "height direction" means a direction orthogonal to the longitudinal direction and the width direction, and height direction in the same member, that is, the Z-axis direction in Fig.

Referring to Figs. 2 to 6 and Figs. 12 to 14, an automotive seat back impact test apparatus 10 according to an embodiment of the present invention will be described. 2, a vehicle seatback impact test apparatus 10 according to a preferred embodiment of the present invention includes a frame unit 100, a truck unit 200, a collision unit 300, a transfer unit 400, A unit 500, and a damping unit 700. [

The frame unit 100 includes a pair of horizontal frame parts 110 that are horizontal and parallel to each other on the ground and a pair of vertical frame parts 110 that are parallel to each other and perpendicular to the ground at one end of the horizontal frame part 110. [ (120).

The horizontal rail part 111 extends along the horizontal frame part 110. That is, the horizontal rail part 111 is formed on the horizontal frame part 110 so as to be in parallel with the horizontal frame part 110. The vertical rail part 121 is formed so as to extend along the vertical frame part 120 while one end thereof is in contact with the horizontal rail part 111 and the contact part is rounded. That is, on the vertical frame portion 120 so as to be parallel to the vertical frame portion 120. 2, the front end of the vertical rail part 121 is formed to be rounded, but the present invention is not limited thereto. The front end of the horizontal rail part 111 may be rounded, and the vertical rail part may be formed in a straight line.

The horizontal rail part 111 and the vertical rail part 121 are formed on the guide block part 220 of the bogie unit 200 and the moving block part 320 of the collision unit 300, And may be formed as a rail on the horizontal frame part 110 and the vertical frame part 120 so as to be rotatable and movable. The guide block portion 220 and the collision unit 300 of the bogie unit 200 described later may be formed in the shape of an LM guide when the movable block portion 320 is formed in a slide block shape. However, it is preferable that the bogie unit 200 is formed on the vertical frame part 120 in a rail shape so as not to be detached while accommodating them. Although not shown in the drawing, a rack and a pinion or a ball screw are mounted on the horizontal frame so as to facilitate the movement of the collision unit 200 and the collision unit 300 in the direction of the vertical frame 120, As shown in FIG.

The balancer unit 200 is installed horizontally in the horizontal frame part 111 along the horizontal rail part 111. That is, the bogie unit 200 is horizontally movable only on the horizontal frame part 111 along the horizontal rail part 111. [

The collision unit 300 is installed horizontally and vertically movably in the horizontal frame part 110 and the vertical frame part 120 along the horizontal rail part 111 and the vertical rail part 121, And collides with the bogie unit 200 by control. A plurality of weight portions 390 are detachably coupled to the first loading portion 370 and the second loading portion 380 of the collision unit 300 so as to be symmetrical with respect to the center line 311, The collision test of the vehicle seatback is performed by converting the position energy due to the free fall of the collision unit 300 whose weight has been determined into kinetic energy.

The transfer unit 400 moves the collision unit 300 up and down to the top of the vertical frame part 120 under the control of the control unit 500.

The control unit 500 controls the conveying unit 400 to control the raising and lowering of the collision unit 300 and controls the collision unit 300 and the collision unit 300 sensed through the sensing unit 600, The control unit 300 receives the movement distance, acceleration, and height information by wire or wireless to adjust the amount of impact of the collision unit 300, control the movement distance of the bogie unit 200, comprehensively check the operation of the transfer unit 400, Can be controlled.

The damping unit 700 includes a collision unit 300 and a balancing unit 300 for protecting the collision unit 300 and the balancing unit 200 and the horizontal frame 110 when the collision unit 300 collides with the balancing unit 200. [ Respectively. The damping unit 700 includes a collision-unit-side damper unit 710 installed in the collision unit 300 and a bumper-unit-side damper unit 720 installed on the vehicle unit side 200.

Therefore, it is possible to reduce the maintenance cost of the seat back impact test apparatus and improve the accuracy of the collision test by preventing the failure or breakage of the related parts when the collision occurs by generating the impact amount through the simple free falling principle, And it is possible to maintain the optimum depres- sion speed G value to improve the accuracy of the collision test and to minimize the damage of each component unit in the event of a collision.

3, the horizontal rail part 111 is positioned at a position where the potential energy of the collision unit is converted into kinetic energy until the collision unit 300 is collided with the carriage unit 200 at the part connected to the vertical frame 120 A collision section B where the energy conversion section A and collision unit 300 collide with the pedestrian unit 200 and a deceleration section where the collision unit 200 collides with the collision unit 300 is decelerated.

The collision testing device for a vehicle seatback according to the present invention includes a horizontal frame part and a vertical frame part horizontally and vertically movable along a horizontal frame part and a vertical frame part, And the weight portion is detachably attached to the first loading portion and the second loading portion of the collision unit such that they are symmetrically symmetrical with respect to the center line and the position energy due to the free fall of the collision unit is converted into kinetic energy As the collision test of the automotive seat back is carried out, the installation space for the collision test is reduced to maximize the space efficiency and the installation cost is reduced because there is no need to install expensive equipments such as the hydraulic equipment. It is possible to promote balanced industrial development according to the increase of supply, The accuracy of the experiment can be improved by precisely experimenting with satisfying the depression speed G value at the position and weight of the damping unit and the weight of the damping unit.

As shown in FIGS. 2 to 6, an automotive seat back impact test apparatus 10 according to an embodiment of the present invention further includes a sensing unit 600.

The sensing unit 600 is installed in the frame unit 100, the collision unit 300, and / or the bogie unit 200 to detect the movement distance and acceleration of the bogie unit 200 and the collision unit 300, ) Can be measured. The various data thus measured is transmitted to the control unit 500 via wired or wireless communication, and the control unit 500 controls the overall vehicle seatback impact test apparatus 10 through the control unit 500.

The sensing unit 600 includes an acceleration measuring unit 610, a height measuring unit 620, a distance measuring unit 630, a first pressure measuring unit 640, and a second pressure measuring unit 650 .

 4 and 5, the acceleration measuring unit 610 is installed in the body unit 310 of the collision unit 300 and the base unit 210 of the truck unit 200, The acceleration of the truck unit 200 collided with the collision unit at the time of free fall is measured.

2, the height measuring unit 620 is installed in a height direction along a vertical frame on one side or both sides of the vertical frame 120 to measure the height of the collision unit 300. Accordingly, the potential energy of the collision unit 300 is calculated to cause the collision unit 300 to collide with the bogie unit 200 at a desired impact amount. The weight of the weight body 390 detachably attached to the first and second loading parts 370 and 380 of the collision unit 300 can be calculated to more easily measure and control the amount of impact. Accordingly, the height of the vertical frame is reduced, and the space for installation can be optimized and miniaturized.

2, the transport distance measuring unit 630 is installed along the horizontal frame at one side or both sides of the horizontal frame 110 in the longitudinal direction to measure the transport distance of the collision unit 300 and the truck unit 200 . As described above, the vehicle seatback impact test apparatus according to the present invention minimizes the amount of the strategy used by using the power only when the collision unit is moved to the upper portion of the vertical frame, thereby reducing the cost of the seatback collision test.

6 and 14, the first pressure measuring unit 640 is installed on the front blocking unit 340 on the side of the collision unit 300 to measure the pressure inside the collision-unit-side damper unit 710. That is, the first pressure measuring unit 640 measures the pressure inside the first buffer 712.

4 and 14, the second pressure measuring unit 650 is installed in the base unit 210 of the bogie unit 200 to measure the pressure inside the bogie unit side damper unit 720. That is, the second pressure measuring unit 650 measures the pressure inside the second buffer 722.

The first buffer part 712 and the second buffer part 722 may be formed in the form of an air damper having a predetermined air pressure. This can reduce the manufacturing cost and the maintenance cost. Also, though not necessarily limited thereto, the internal pressures of the first buffer portion 642 and the second buffer portion 652 are formed to be the same. Accordingly, it is possible to implement accurate experiments while minimizing damage to the collision unit 300, the truck unit 200, and the horizontal frame 110 at the time of collision by free fall while maintaining the optimum value of the depres- sion speed G at the time of collision .

12, the impingement-unit-side damper portion 710 of the damping unit 700 includes a first inner plate 711, a first outer plate 713, and a first buffer 712.

The first inner plate 711 is installed in the front blocking portion 340 of the collision unit 300. That is, one side of the first inner plate 711 contacts the front blocking portion 340 of the collision unit 300, and the other side of the first inner plate 711 contacts one side of the first buffer 712 Respectively.

The second outer plate 713 is installed to face the first inner plate 711 so as to be spaced apart from the front blocking portion 340 of the floor stones unit 300. That is, one side of the first outer plate 713 is in contact with the other side of the first inboard portion 712, and the other side of the first outside plate 713 faces the front blocking portion 340, And is in contact with the second outer plate 723.

The first buffer 712 is installed between the first inner plate 711 and the first outer plate 713. The first buffer part 712 is filled with air having a predetermined pressure.

 The first inner plate 711 and the first outer plate 713 are formed to have a substantially rectangular plate shape having a predetermined length and width, though not necessarily limited thereto.

13, the damper unit 720 of the damping unit 700 includes the second inner plate 721, the second outer plate 722, the second buffer 723, and the wrinkle 724).

The second inner plate 721 is installed in the base portion 210 of the truck unit 200. That is, one side of the second inside plate 721 is in contact with the base portion 210 of the truck unit 200, and the other side of the second inside plate 721 is in contact with one side of the second buffer 722 do.

The second outer plate 723 is installed to face the second inner plate 721 so as to be spaced apart from the base portion 210 of the truck unit 200. That is, one side of the second outer plate 723 contacts the other side of the second left foot 722, and the other side of the second outer plate 723 faces the base 210, 1 outer plate 713. [0053]

The second buffer 722 is installed between the second inner plate 721 and the second outer plate 723. The interior of the second buffer 722 is filled with air having a predetermined pressure.

 The first inner plate 711 and the first outer plate 713 are formed to have a substantially rectangular plate shape having a predetermined length and width, though not necessarily limited thereto.

The corrugated portion 724 is formed in the middle of the second buffer 722. As described above, the collision-unit-side damper portion 720 is provided with the two-end damper structure unlike the collision-unit-side damper portion 710 having the one-end structure by the corrugated portion 724. By virtue of the two-stage damper structure of the corrugated portion 724, the noise can be canceled at the peak of impact to increase the buffering time, thereby increasing the holding time of the depressing speed G, minimizing the number of dampers, The manufacturing time can be reduced.

The first inner plate, the first outer plate, the second inner plate, and the second outer plate are made of an aluminum alloy, so that the first buffer and the second buffer installed inside the first inner plate, the second inner plate, And the maintenance time can be reduced as the replacement is facilitated.

delete

delete

delete

delete

delete

Therefore, the seat back impact test apparatus for an automobile according to the present invention maximizes the space efficiency by reducing the installation space for the collision test by installing the damping unit 700 efficiently, and it is also possible to use expensive equipment such as hydraulic equipment Installation cost is reduced because it is not necessary to install it, so that it can be introduced easily by the small and medium enterprises, so that the industrial development can be balanced by the increase of supply, the maintenance cost is reduced, The accuracy and precision of the test can be improved.

2 to 6 and 14, the collision-unit-side damper unit 710 and the truck unit-side damper unit 720 are provided with collision units 300 and 1 Or more.

As described above, the automotive seatback impact test apparatus according to the present invention reduces the test time by easily adjusting the number of collision-unit-side damper portions 710 and the vehicle-unit-side damper portions 720 of the damping unit 700 And the safety and convenience of the experimenter can be achieved through collision caused by free fall.

The collision-unit-side damper portion 710 is formed so that the spacing distance 1 between the collision-unit-side damper portions 710 and the separation distance L between the damper portions 720 on the vehicle-unit side are made equal to each other, And a damper unit 720 on the side of the vehicle unit. Since the distance between the damper unit on the side of the impact unit and the distance between the damper unit on the side of the truck unit are the same, the transmission of the shock wave is facilitated at the time of impact, the vibration is reduced to improve the accuracy of the experiment, Can be prevented.

As shown in Fig. 14, the diameter d of the first buffer part and the diameter D of the second buffer part are formed to be equal to each other. Since the diameter of the first cushioning portion is equal to the diameter of the second cushioning portion, the energy of the cushioning velocity of the collision unit is accurately transmitted to the cushioning unit while minimizing the breakage between the first outer plate and the second outer plate at the time of collision It is possible to minimize the energy loss, reduce vibration and noise occurring at the time of collision, thereby improving the safety and convenience of the experimenter, and improving the precision and reliability of the experiment.

As shown in Fig. 14, the height H of the second buffer part is formed to be 1.3 times or more and twice or less the height h of the first buffer part. When the height difference is less than 1.3 times, the depreciation speed G value does not occur at 24 or more, and when the height difference exceeds 2, the holding time is less than 20 ms. That is, since the noise is canceled at the peak of the impact to increase the buffer time, the holding time of the depressing speed G value can be increased, and the number of the damper unit of the bogie unit side can be minimized, .

4, the truck unit 200 of the vehicle seatback impact test apparatus 10 according to an embodiment of the present invention includes a base unit 210, a guide block unit 220, a seat unit 230, And a space part 240. [

The base unit 210 has a predetermined length and width and is formed in a substantially rectangular plate shape to form an outer appearance of the truck unit 200. The base unit 210 allows the carriage unit 200 to move along the horizontal rail part 111 along the horizontal frame 110 formed parallel to each other.

The guide block portion 220 is installed on both sides of the base portion 210 so as to be able to slide or rotate along the horizontal rail portion 111. In addition, the guide block portion 220 may be formed on both sides of the base portion 210 according to the size of the base portion 210 and the like. As will be described later, the guide block portion 220 may be partially formed by an electromagnet to control the deceleration force of the bogie unit 200 together with the braking force control portion under the control of the control unit 500 , And the whole can be formed of an electromagnet.

A seat portion (230) is provided at the upper end of the base portion (210).

The space portion 240 is provided at the upper end of the base portion 210 adjacent to the seat portion 230 to receive the test block 241. That is, the test block 241 placed in the space portion 240 moves away from the space portion 240 by the impact caused by the free fall of the impact unit 300, and the seat portion 230 is priced.

5 to 6, the collision unit 300 of the vehicle seatback impact test apparatus 10 according to one embodiment of the present invention or another embodiment includes a body 310, a movable block portion 320, a detachable part 330, a front blocking part 340, first, second, third and fourth support parts 350, 352, 360 and 362, a first loading part 370, a second loading part 380, , And a weight portion 390. [

The main body 310 has a predetermined length and width and is formed in a substantially rectangular plate shape to form an appearance of the collision unit 300. The collision unit 200 moves along the horizontal rail part 111 and the vertical rail part 121 along the horizontal frame 110 and the vertical frame 120 where the body part 310 is formed parallel to each other.

The movable block portion 320 is installed on both sides of the main body portion 310 so as to be able to slide or rotate along the horizontal rail portion 111 and the vertical rail portion 121. In addition, the movable block portion 320 may be formed on both sides of the body portion 310 according to the size of the body portion 310 and the like. As described later, the moving block unit 320 is formed by an electromagnet so as to adjust the amount of impact and the acceleration of the collision unit 300 together with the braking force control unit under the control of the control unit 500 Or may be formed entirely of electromagnets.

The detachable part 330 is formed at the front end of the main body part 310 to detachably connect the collision unit 300 to the transfer unit 400. That is, the attaching / detaching unit 330 is formed on the body 310 opposite to the collision unit 200, and connects the body 310 with the connection unit 420 described later. Also, although not necessarily limited thereto, the detachable portion 330 is preferably formed on the center line of the body portion 310 to maintain the center of gravity of the collision unit 300 when the collision unit 300 is free to fall. Furthermore, although not necessarily limited thereto, the detachable portion 330 may be formed of an electromagnet. Accordingly, since the detachable part 330 is detached from the connection part 420 by the electrical signal of the control unit 5000 and the collision unit 300 can freely fall, the safety and convenience of the experimenter can be improved, The experiment time can be reduced and the experiment cost can be reduced.

The front shielding part 340 is installed along the longitudinal direction at one side of the main body 310, specifically at the front side of the main body part 310 where the collision unit 300 collides with the cargo unit 200.

6, the front blocking part 340 includes a first loading part 370 and a first loading part 380. The first blocking part 340 includes a first weight part 390 to the front shielding part 340. The front shielding part 340 may include a coupling groove formed to be inserted into the front shielding part 340 in the width direction thereof. The weight portion 390 is fixed by the bolt through the engaging groove portion and the engaging groove portion 392 or the insertion groove portion 395 of the weight member 390 to be described later, It is possible to prevent the second part from being separated from the loading part 370 and the second loading part 380 and to minimize the vibration caused by the movement of the colliding unit.

The first support portion 350 and the second support portion 352 are disposed to face each other along the width direction of the main body portion so as to be orthogonal to the front shielding portion 340.

The third support portion 360 and the fourth support portion 362 are orthogonal to the front shielding portion 340 and are symmetrical with respect to the first support portion 350 and the second support portion 352 with respect to the center line of the main body portion, As shown in FIG. Since the first support 350 and the second support 352 are perfectly symmetrical with respect to the third support 360 and the fourth support 362 with respect to the centerline and are opposed to each other, The center of gravity of the collision unit is not shifted to either the front, back, left, or right side at the time of the movement, and the acceleration due to the accurate collision can be achieved. Finally, the accuracy and reliability of the experiment can be improved.

5 to 6, the first, second, third, fourth, and support portions 350, 352, 360, and 362 may be disposed adjacent the front blocking portion 340, And is tapered so as to be inclined downward in the backward direction of the portion 310. Accordingly, when the weight body 390 to be described later is installed in the first loading unit 370 and the second loading unit 380, the coupling operation is easy between the weight body 390 and the operator, The economics of the test evaluation can be achieved.

The first loading part 370 is formed by a part of the front blocking part 340 and the first supporting part 350 and the second supporting part 352. The weight portion 390 is installed on the first stacking portion 370 such that the weight portion 390 can be detachably and sequentially detached from the front blocking portion 340 in the width direction.

The second loading part 380 is formed by the front blocking part 340 and the other part, the third supporting part 360 and the fourth supporting part 362 so as to be symmetrical with the first loading part 370 with respect to the center line of the main body part do. The weight portion 390 is mounted on the second loading portion 380 in such a manner that the weight portion 390 can be detachably attached to the first loading portion 370 sequentially in the width direction from the front blocking portion 340 so as to be symmetrical with respect to the first loading portion 370.

5 to 6, the weight unit 390 may include a first stacking unit 370 and a second stacking unit 370 to uniformly maintain the center of gravity of the collision unit when the collision unit 300 is free- (380). Accordingly, the center of gravity of the collision unit does not deviate toward the front, rear, left, or right side when the collision unit is free to fall and move along the horizontal rail portion and the vertical rail portion. Acceleration due to accurate collision can be achieved, The lifetime of each component is increased to reduce the maintenance cost and the weight body 390 is prevented from being separated from the primary body due to the vibration reduction, thereby preventing the stabilization accident, and finally improving the accuracy and reliability of the experiment .

5 to 6, the weight unit 390 may include a first loading unit 370 and a second loading unit 370 for accelerating propulsion and moment inertia of the collision unit at the free fall of the collision unit 300, (380) adjacent to the front blocking part (340). That is, since the weight portion 390 is formed to be stacked rearward along the width direction of the body portion 310 while being in contact with the front blocking portion 340 in the first stacking portion 370 and the second stacking portion 380 It is possible to improve the acceleration force and the moment inertia of the collision unit during the free fall of the collision unit 300, thereby increasing the accuracy and reliability of the collision test, saving the test time and reducing the test cost.

Although not explicitly shown in the drawing, the weight portion 390 of the collision unit 300 according to another embodiment of the present invention includes a body portion, a fastening groove portion 392, and an insertion groove portion 395, respectively.

The body portion is formed into a rectangular plate shape. The weight portion 390 is stacked on the first stacking portion 370 and the second stacking portion 380 along the width direction of the main body 310 from the front shielding portion 340 so that the desired acceleration So that the length of the vertical rail can be reduced, thereby miniaturizing the seat back impact test apparatus for an automobile and maximizing the accuracy and reliability of the test.

The fastening groove portions 392 are formed on both sides of the body portion to penetrate the body portion to be symmetrical to each other along the longitudinal direction of the body portion.

The insertion groove portion 395 is formed to penetrate the body portion so as to be adjacent to the coupling groove portion 392 and to be symmetrical to each other along the longitudinal direction of the body portion.

Although not clearly shown in the drawing, the engagement groove 392 of the weight portion 390 of the collision unit 300 according to another embodiment of the present invention has a stepped portion and a through-groove. As the bolt head portion is inserted into the stepped portion of the coupling groove portion 392 and the threaded insertion portion of the bolt is inserted into the through groove portion and inserted into the insertion groove portion 395 of the adjacent another weight portion 390, 390 are firmly fixed by bolts.

That is, referring to FIG. 6, a description will be given of the principle that the weight portion 390 is firmly stacked in multiple stages in the first stacking portion 370 and the second stacking portion 380. FIG. A bolt penetrating the step portion of the coupling groove portion 392 of the weight portion 390 adjacent to the first front blocking portion 340 and the through groove portion of the weight portion 390 contacting the first loading portion 370 or the second loading portion 380 And is inserted into the coupling groove portion 341 of the front blocking portion 340. A bolt passing through the stepped portion of the fastening groove portion 392 and the through groove portion which are laminated rearward in the width direction of the body portion 310 with respect to the initial weight portion 390 is inserted into the insertion groove portion of the initial weight portion 390 395, respectively. As the bolts are inserted and fixed so as to correspond to each other between adjacent weight pieces 390, a plurality of weight parts 390 provided on the first stacking part 370 and the second stacking part 380 are firmly installed It is possible to prevent the heavy body portion 390 from being detached at the time of free fall or movement of the collision unit 300, to prevent a safety accident, and to reduce vibration.

6, the first loading part 370 and the second loading part 380 according to an embodiment of the present invention include a first departure preventing part 371 and a second departure preventing part 381 do.

The first departure preventing portion 371 is installed on the upper portion of the rear surface of the main body portion 310 to prevent the weight portion 390 from being separated from the first loading portion 370. In other words, the first departure prevention portion 371 is disposed on the upper portion of the main body 310 in the width direction of the main body 310 so as to be in contact with the weight portion 390, And is fastened by a bolt or rivet through an insertion hole formed through the surface.

In order to prevent the heavy body portion 390 from being separated from the second loading portion 380, the second departure preventing portion 381 may be formed to have a shape that is symmetrical with respect to the center line 311 of the body portion, (310). In other words, the second separation preventing portion 381 is formed in the second mounting portion 380 so as to be in contact with the weight portion 390 disposed at the most rear side in the width direction of the body portion 310, And is fastened by a bolt or rivet through an insertion hole formed through the surface.

In this way, the weight unit 390 is moved by the first departure preventing portion 371 and the second departure preventing portion 381 such that the collision unit 300 is free to move, but during the movement, It is possible to prevent the accidental detachment of the collision test device 380 from the fourtharily, thereby increasing the reliability of the collision test apparatus.

6, the front blocking part 340 includes a first band part 342 and a second band part 343 according to another embodiment of the present invention.

The first band portion 342 is fixed at a corresponding position of the first loading portion 370 of the front blocking portion 340 so as to prevent the weight portion 390 from being separated from the first loading portion 370 And the other end is fixed to the rear surface of the main body 310. [

The second band portion 343 includes a first band portion 342 and a front blocking portion 340 so as to be symmetrical with respect to the center line of the body portion in order to prevent the heavy body portion 390 from being separated from the second loading portion 380. [ And the other end is fixed to the rear surface of the main body portion 310. The second mounting portion 380 of the main body 310 is fixed at the corresponding position. The first band portion 342 and the second band portion 343 are made of elastic rubber, alloy, cloth or the like and are provided with hooks, bolts, clips, and the like on the rear surface of the body portion 310. [ And can be easily detachably attached by various means such as a clamp. The weight portion 390 is moved by the first band portion 342 and the second band portion 343 such that the collision unit 300 is free to move from the first loading portion 370 to the second loading portion 380 It is possible to prevent the safety accident from occurring, and to increase the reliability of the collision test apparatus.

If necessary, the weight portion 390 may include a flange portion protruding from both upper and lower sides of the body portion in the height direction.

2, the transfer unit 400 of the automotive seat back impact test apparatus 10 according to the present invention may include a power supply unit 410, a connection unit 420, and a guide unit 430.

The power supply unit 410 is installed on a horizontal frame or on the ground to provide rotational power. The power supply unit is formed of a servomotor and compares the rotational speed of the connection unit 420 with a measurement result of the height measurement unit 620. The control unit 500 controls the impact unit 300 to the required height of the vertical frame 120. Accordingly, as the potential energy of the impulse unit 300 is converted into the kinetic energy, a desired amount of impulse can be easily generated, thereby reducing the test time and improving the test accuracy.

One end of the connection part 420 is connected to the power supply part 410 and the other end is connected to the detachable part 330. However, the connection portion 420 may be formed of a rope wire, a chain, a belt, or the like. Although not shown in the drawing, the distal end of the connection part 420 connected to the detachable part 330 is provided with a ring-shaped handle part so that the detachable part 330 of the collision unit and the connection part 420 are short- ) Can be performed. As described above, only the coupling part formed by the electromagnet is formed at the tip of the connection part 420 connected to the detachable part 330, and is connected to the detachable part 330 by the electromagnet. Then, by the electric signal of the control unit 500 It is also possible to perform the free fall of the collision unit 300 as it is automatically short-circuited with the detachable part 330.

The guide unit 430 is installed on the vertical frame 120 or the horizontal frame 110 to guide the movement of the connection unit 430 while driving the power supply unit 410 while supporting the connection unit 420. The guide portion 430 may be formed in a pulley shape though not necessarily limited thereto.

As described above, according to the present invention, there is provided an apparatus for crash test of an automotive vehicle, which comprises a horizontal frame part and a vertical frame part horizontally and vertically movable along a horizontal rail part and a vertical rail part, As the collision test of the vehicle seatback is performed by switching the kinetic energy of the kinetic energy due to the free fall of the collision unit, the installation space and the installation cost for the collision test are reduced, and the free fall The use of the power only when the collision impact unit is moved to the uppermost portion of the horizontal frame portion reduces the maintenance cost and the test cost of the collision test apparatus and improves the accuracy of the collision test to increase the safety of the vehicle.

The vehicle seatback impact test apparatus according to the present invention may further include a braking force adjusting section provided in the energy transition section A, the impact section B and / or the deceleration section C of the horizontal rail section 111, The collision unit 300 can adjust the impact amount of the collision unit 300 or the deceleration force of the collision unit 300 or the truck unit 200 at the moment when the collision unit 300 collides with the truck unit 200 under the control of the control unit 300. [ More specifically, the braking force adjustment portion may form at least one region of the horizontal rail portion 111. [ The plurality of braking force adjustment portions may be provided on the horizontal rail portion 111 so as to be spaced apart from each other by a predetermined distance.

When the horizontal rail part 111 is made of a metal material as a whole, it is possible to electrically shield the boundary area between the first area provided with the braking force control part and the second area surrounding the first area, It is possible to block the transfer of the electrical effect generated in the first region to the second region by filling the material. Further, the first region and the second region are formed in the same plane so as not to affect the movement of the collision unit 300 or the like on the rails. Further, the braking force adjustment portion may have a magnetic force under the control of the control unit 500. [

The braking force adjusting unit and the moving block unit 320 are driven by the electromagnets on the moving block unit 320 of the collision unit 300 moving in the energy conversion section A in synchronism with the braking force adjusting unit having the magnetic force, The deceleration force of the collision unit 300 can be adjusted by decelerating the collision unit 300 by the attraction force between the electromagnets on the collision unit 300. [ The movement of the guide block unit 220 and / or the collision unit 300 of the bogie unit 200, which moves in the collision section B and / or the deceleration section C in synchronism with the braking force control section having the magnetic force, The deceleration force can be controlled by the attraction force between the electromagnets on the block portion 320.

Also, the braking force adjustment unit may be driven from the high level to the electromagnet based on a PWM (Pulse Width Modulation) signal transmitted from the control unit 500, and may not have electrical characteristics at a low level. In addition, it is possible to intermittently drive the electromagnet by adjusting the pulse width and the period of the PWM signal, thereby enabling the collision unit 300 to decelerate intermittently. Therefore, ABS (Anti Lock Brake System) brake system, which is generally applied when a vehicle that rushes to the vehicle during the actual accident occurs, operates the emergency brake, so that the same situation as the actual accident process can be obtained. Allow the collision experiment to proceed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

10: a vehicle seatback impact test apparatus, 100: a frame unit,
110: horizontal frame part, 111: horizontal rail part,
120: vertical frame part, 121: vertical rail part,
200: Balance unit, 210: Base part,
220: guide block portion, 230: seat portion,
240: space portion, 241: test block,
300: collision unit, 310: main body,
320: moving block, 330: detachable part,
340: front blocking portion, 342: first band portion,
343: second band portion, 350: first support portion,
352: second support portion, 360: third support portion,
362: fourth supporting portion, 370: first loading portion,
371: first departure preventing portion, 380: second loading portion,
381: second departure prevention portion, 390: weight portion,
392: fastening groove portion, 395: insertion groove portion,
400: transfer unit, 410: power supply unit,
420: connection portion, 430: guide portion,
500: control unit, 600: sensing unit,
610: acceleration measuring unit, 620: height measuring unit,
630: transfer distance measuring unit, 640: first pressure measuring unit,
650: second pressure measuring unit, 700: damping unit,
710: a collision-unit-side damper section, 711: a first inner plate,
712: first buffer part, 713: first outer plate,
h: height of the first buffer part, d: diameter of the first buffer part,
l: separation distance,
720: damper unit on the side of the truck unit, 721: second inner plate,
722: second buffer part, 723: second outer plate,
724: crease portion, H: height of the second buffer portion,
D: diameter of the second buffer part, L: separation distance,
A: energy conversion section, B: impact section,
C: Deceleration section.

Claims (16)

A frame unit having a horizontal frame part horizontally installed on the ground and having a horizontal rail part and a vertical frame part vertically installed at one end of the horizontal frame part and having a vertical rail part having one end connected to the horizontal rail part;
A balancing unit installed horizontally on the horizontal frame part along the horizontal rail part;
A collision unit mounted horizontally and vertically on the horizontal frame part and the vertical frame part along the horizontal rail part and the vertical rail part to collide with the truck unit;
A transfer unit for moving the collision unit up and down the vertical frame part;
A control unit; And
And a damping unit installed in the collision unit and the truck unit to protect the collision unit, the truck unit, and the horizontal frame unit when the collision unit collides with the truck unit,
Wherein the damping unit comprises:
A collision-unit-side damper unit installed in the collision unit; And
And a damper unit side damper part provided on the side of the bogie unit,
The collision-unit-side damper portion
A first inner plate installed in the collision unit;
A first outer plate installed to face the first inner plate; And
And a first buffer installed between the first inner plate and the first outer plate,
The damper unit side damper unit
A second inner plate installed on the truck unit;
A second outer plate installed to face the second inner plate;
A second buffer installed between the second inner plate and the second outer plate;
And a wrinkle portion formed in the middle of the second buffer portion,
The height of the second buffer part is 1.3 times or more and twice or less the height of the first buffer part,
Wherein a collision test of an automotive seatback is performed by converting the kinetic energy of the kinetic energy into the kinetic energy by the free energy of the collision unit.
delete delete delete The method according to claim 1,
Wherein at least one of the collision-unit-side damper unit and the vehicle-unit-side damper unit is installed in the collision unit and the truck unit so as to face each other while corresponding to each other.
6. The method of claim 5,
Wherein the impact-unit-side damper unit and the vehicle-unit-side damper unit are provided such that the distance between the collision-unit-side damper unit and the vehicle-unit-side damper unit is equal to each other.
delete The method according to claim 1,
Wherein the diameter of the first cushioning portion and the diameter of the second cushioning portion are equal to each other.
The method according to claim 1 or 8,
Wherein the inner pressure of the first buffer part and the inner pressure of the second buffer part are the same.
10. The method of claim 9,
Wherein the first inner plate, the first outer plate, the second inner plate, and the second outer plate are made of an aluminum alloy.
11. The method of claim 10,
Further comprising a sensing unit installed in the frame unit, the collision unit, or the bogie unit and measuring a moving distance, an acceleration, or an elevation height of the collision unit between the bogie unit and the collision unit,
The sensing unit includes:
An acceleration measuring unit installed in the main body of the collision unit and the base of the collision unit to measure acceleration of the collision unit and the bogie unit;
A height measurement unit installed at the vertical frame unit and measuring a height of the collision unit;
A transport distance measuring unit installed at the horizontal frame unit and measuring a transport distance of the collision unit and the truck unit;
A first pressure measuring unit installed at a front blocking unit of the collision unit and measuring a pressure of the impact unit side damper unit;
And a second pressure measuring unit installed at a base of the bogie unit and measuring a pressure of the bogie unit side damper unit. delete delete delete delete delete

Images