KR101711515B1 - Pitching simulator for automobile - Google Patents

Abstract

The present invention relates to a pitching simulator for an automobile which can reproduce a crash test of an automobile without collision of an actual car. More specifically, the present invention relates to a pitching simulator for a vehicle, A forward link and a rear link provided at a lower portion of the test plate for momentarily tilting the test plate at a predetermined inclination, and a front link and a rear link, An actuator for providing an action force for an instantaneous gradient change, and a support body for supporting the entire configuration of an automotive pitching simulator.
Further, the present invention can reproduce the state of the test plate on which the test object is mounted in a state similar to that at the time of the collision of an automobile, thereby collecting accurate test data on the impact and movement of the passenger, ≪ / RTI > Particularly, it is possible to instantaneously change the inclination of the test plate on which the test object is mounted instead of the occupant through the front link, the rear link and the actuator of the above-described configuration, to a degree similar to a state at the time of actual vehicle collision.

Description

[0001] Pitching simulator for automobile [0002]

The present invention relates to a pitching simulator for an automobile which can reproduce a crash test of an automobile without collision of an actual car. More specifically, the present invention relates to a pitching simulator for a vehicle, A test plate in place of an automobile, a front link and a rear link provided at a lower portion of the test plate to momentarily tilt the test plate at a predetermined inclination, And a support body for supporting the entire structure of an automotive pitching simulator. The present invention relates to an automotive pitching simulator, and more particularly, to a pitching simulator for an automobile, which comprises an actuator for providing an action force for instantaneous gradient change of a rear link,

The first time a car maker develops a new car, it conducts a variety of safety tests to check the safety of the developed car. It sets a certain standard and checks the completeness according to whether or not it conforms to this standard.

Safety in automobiles is a factor that most affects the completeness of automobiles, especially in relation to human life, and in many countries around the world, the most stringent standards are applied to the safety of such automobiles .

Generally, a suspension system of an automobile includes a chassis spring which connects an axle and a vehicle body, a shock spring that absorbs an impact from the road surface while driving, a shock absorber that absorbs free vibration of the spring, and a stay- .

The reason why such a suspension device is necessary is to cope with the phenomenon of pitching and rolling occurring while the vehicle is running. The term " pitching phenomenon " refers to a phenomenon in which when a vehicle is overrun, . In order to minimize such a pitching phenomenon, it is desirable to maximize the rigidity.

The rolling phenomenon refers to the rotational motion of the vehicle body passing through the center in the longitudinal direction of the vehicle when the vehicle is turning or receiving a wind in the middle of traveling. In order to minimize the rolling phenomenon, it is necessary to maximize the lubrication.

Therefore, a test apparatus is required to cope with such a pitching and rolling phenomenon. Since a conventional test vehicle is fixed on a sled, it is impossible to perform a pitching test, thereby realizing collision of an actual vehicle, There is a problem that leads to a result of an increase in test time and cost.

The following is a typical conventional technique for a pitching simulator for a car.

Korean Patent Laid-Open Publication No. 10-2006-0033539 relates to an automobile impact test apparatus having a pitching rolling function, which comprises a rail block fixed to a bottom surface of a test chamber, And a test body installed on the top surface of the sled to which various components for various types of tests are built and a test body which is operated by high pressure compressed air in front of the sled in accordance with a control signal of the main controller, A sled test apparatus for an automobile comprising an impact test apparatus for reproducing a body-applied pulse at the time of an actual vehicle crash by charging a sled, characterized in that the sled is divided into upper and lower sleds, And the lower end of the lower sled is projectingly engaged with the upper sled to selectively reproduce a rotation impingement angle at a predetermined angle A rotatable angular crystal; A flow unit for connecting the test body and the front end of the upper sled to each other to generate a constant hydraulic pressure bearing force on the test body; And a pitching means for connecting the test body and the rear end of the upper sled to each other and providing a constant hydraulic pressure supporting force to the rear end of the test body so that the collision locus can be changed by the height at which the rear end of the vehicle body rises at the time of the body collision.

In addition, the above-mentioned prior art constitutes a variable spring-damper corresponding to a suspension device of an actual automobile in order to reproduce a pitching phenomenon which is generated differently depending on the center of gravity of the car, the type of the car, and the weight of the car, So that it is possible to reproduce various pitching phenomena and rolling phenomenon occurrence, thereby realizing an actual collision reproduction.

However, in the above-mentioned conventional technique, the force for inducing the rolling phenomenon and the pitching moment for inducing the pitching phenomenon are mutually influenced, and it is difficult to induce the collision with the actual vehicle. It is required to continue research and development.

1. Korean Patent Publication No. 10-2006-0033539 (April 19, 2006) 2. Korean Patent Publication No. 10-2004-0017666 (Feb. 27, 2004) 3. Korean Patent Publication No. 10-2003-0035132 (2003.05.09) 4. Korean Patent Publication No. 10-2014-0079506 (June 26, 2014)

The present invention relates to a pitching simulator for a car, which is developed to solve the problems of the prior art. In the case of a crash of an automobile, shocks and automobile motions occur in various directions, There was a problem that it was difficult to reproduce the impact and movement of a passenger due to the pitching moment similarly to the actual situation;

Since the conventional actuator for instantly changing the inclination of the test plate on which the test object is mounted instead of the passenger is not configured to be dedicated to the automotive pitching simulator, the conventional actuator for changing the pitching moment corresponding to the vertical direction It is difficult to instantaneously change the inclination of the test plate, thereby providing a solution to this problem.

The present invention has been made to solve the above-

A test plate on which a test object is mounted; A forward link provided at a front lower portion of the test plate to move the test plate forward and downward; A rear link provided at a rear lower portion of the test plate to move the rear of the test plate up and down; At least one actuator coupled to the front link and the rear link, respectively, to provide lift force to the test plate; And a support body which is coupled to a part of the front link, a part of the rear link and a part of the actuator to provide a supporting force.

The pitching simulator for a car according to the present invention can reproduce the state of a test plate on which a test object is mounted in a state similar to that of a collision of an automobile, The effect of collecting accurate test data can be obtained;

Particularly, it is possible to instantaneously change the inclination of the test plate on which the test object is mounted instead of the occupant through the front link, the rear link and the actuator of the above-described configuration, to a degree similar to a state at the time of actual vehicle collision.

1 is a perspective view showing a pitching simulator for a car according to a preferred embodiment of the present invention;
2 is a partial projection perspective view showing a pitching simulator for a vehicle according to a preferred embodiment of the present invention;
3 is an exploded perspective view showing a pitching simulator for a vehicle according to a preferred embodiment of the present invention.
4 is a side view showing a pitching simulator for a car according to a preferred embodiment of the present invention.
5 is a side view showing a change in slope of a test plate of an automotive pitching simulator according to a preferred embodiment of the present invention.
6 is a detailed perspective view showing a lower portion of a slide plate of a pitching simulator for a car according to a preferred embodiment of the present invention.
7 is a perspective view showing an actuator of a pitching simulator for a car according to a preferred embodiment of the present invention.
8 is a partially exploded perspective view showing an actuator of a pitching simulator for a vehicle according to a preferred embodiment of the present invention.
9 is a side sectional view showing an actuator of a pitching simulator for a vehicle according to a preferred embodiment of the present invention.
10 is a front sectional view showing an actuator of an automotive pitching simulator according to a preferred embodiment of the present invention.
11 is a plan view showing an actuator of a pitching simulator for a car according to a preferred embodiment of the present invention.
12A to 12F are side sectional views showing an operating state of an actuator of a pitching simulator for a vehicle according to a preferred embodiment of the present invention.

The present invention relates to a pitching simulator for an automobile which can reproduce a crash test of an automobile without a collision of an actual car, comprising: a test plate (10) on which a test object is mounted; A front link 20 provided at a front lower portion of the test plate 10 to move the test plate 10 up and down; A rear link 30 provided at a rear lower portion of the test plate 10 to move up and down the rear of the test plate 10; At least one actuator (40) fastened to the front link (20) and the rear link (30) to provide a lift force to the test plate (10); And a supporting body (50) which is connected to a part of the front link (20), a part of the rear link (30) and a part of the actuator (40) to provide a supporting force.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown.

First of all, when a collision at the time of a collision is based on an automobile, a collision and a movement occur in various directions of an automobile at the time of actual collision, and the impact and the movement correspond to directions of X axis, Y axis and Z axis in a general engineering expression .

In this case, the force causing the impact and movement of the automobile may be divided into rolling moment, yawing pitching moment, and yawing moment of the X axis and the Y axis, respectively, Is a device for artificially reproducing the pitching moment corresponding to the direction perpendicular to the ground to collect information about the impact and movement of the occupant on the vehicle.

Specifically, the test plate 10 has a configuration in which a test object is mounted, and is configured to be inclined in the vertical direction (X-axis direction) in a state where a test object is mounted instead of a vehicle colliding as shown in Figs.

At this time, the object to be tested mounted on the test plate 10 instead of the passenger may be a general human type model body. 1, a seating member such as an automobile seat is fixedly mounted on the upper portion of the test plate 10, and the seating member is configured to seat a human-type model body. Depending on the requirements, the safety belt may be worn or not.

In addition, the test plate 10 is formed in a plate-like shape, and is configured so that the forward and rearward portions are momentarily inclined by the front and rear links 20 and 30 and the actuator 40 to reproduce actual vehicle collision, The instantaneous gradient change in the front and rear of the test plate 10 as described above forms a pitching moment produced in an actual vehicle collision.

That is, the test plate 10 is instantaneously downwardly moved forward in the collision test, and the rearwardly is elevated upward momentarily to form a pitching moment.

Also, the test plate 10 may be configured in various forms as long as it can make the conditions as close as possible to the vehicle to be collided without affecting the pitching moment which is easily bent by the pitching moment formed instantaneously as described above, 3, an upper plate 11 on which a test object is mounted; And an upper plate frame 12 provided at a lower portion of the upper plate 11 to support the upper plate 11 and having a plurality of frames coupled to each other.

That is, the upper plate 11 has a structure for stably mounting the test object, and a seat member such as an automobile seat is mounted on the upper portion so that the test subject can be mounted on the upper portion of the upper plate 11, have.

The upper plate frame 12 is provided below the upper plate 11 to support the upper plate 11. When the test plate 10 is formed only in the form of a plate having a predetermined thickness, It is a configuration for preventing deformation of the top plate 11 because the test plate 10 is bent in a tilted direction when the test plate 10 tilts instantaneously and an accurate pitching moment applied to the test object can not be formed.

As shown in FIG. 3, the upper plate frame 12 may be formed in various shapes. However, the upper plate frame 12 may be formed by combining a plurality of frames, and the outer periphery is formed in a size and shape similar to the lower portion of the upper plate 11, It is preferable that the plurality of frames are staggered and mutually reinforced so that the horizontal direction, the vertical direction, and the height direction can be rigid.

In addition, the test plate 10 forms a variety of inclination angles if the front plate 20 and the rear plate 30 are inclined so that the front plate 20 and the rear plate 30 can be positioned higher and higher, But it is also possible that the front link 20 is lowered in front of the test plate 10 and the rear link 30 is raised rearward of the test plate 10 so as to be inclined at an angle of 5 to 30 ° desirable.

That is, the front of the test plate 10 is moved downward in accordance with the fact that the front portion of the automobile is lowered to a position lower than usual at the time of actual vehicle collision, and the rear portion of the test plate 10, And is moved upward to reflect a rise to a higher position than usual.

At this time, it is preferable that the final slope of the test plate 10 is formed at 5 to 30 degrees with reference to the plane of the horizontal plane, in order to reflect the degree of tilting of the vehicle in a general car crash.

The front link 20 is provided at a front lower portion of the test plate 10 to move the front of the test plate 10 upward and downward and the rear link 30 is disposed at the rear of the test plate 10 So that the back of the test plate 10 is moved up and down.

At this time, one or more actuators 40 are fastened to the front link 20 and the rear link 30, respectively, to provide the lifting / lowering force with respect to the test plate 10, and the support body 50 supports the forward link 20, a part of the rear link 30 and a part of the actuator 40 are respectively engaged to support the front link 20, the rear link 30 and the actuator 40. [

The front link 20 may be provided on the same side in the width direction of the front lower portion of the test plate 10 as shown in FIG. 2 or 3 for moving the test plate 10 more stably while moving it up and down have.

That is, the front link 20 is configured to receive the acting force applied by the actuator 40 and change its height with respect to the vertical direction to raise and lower the front of the test plate 10, And the other side corresponding to the lower portion is fastened to the front upper portion of the support body 50. [ At this time, the acting force of the actuator 40 can be applied to the front link 20 in the horizontal direction or the vertical direction depending on the shape of the front link 20 and the position of the connecting portion between the actuator 40 and the front link 20 .

The front link 20 is formed between the front lower portion of the test plate 10 and the support body 50 and is supported by the support body 50 so that the force acting by the actuator 40 3 to 5, the upper part is fixed to the front lower part of the test plate 10, and the lower part is provided with a fastening hole 22 formed at the lower part thereof A front vertical hinge 21; The bent portion 24 formed at the center portion is rotatably coupled to the fastening hole 22 of the front vertical hinge 21. Both ends of the joint portion 24, which are both extended from the joint portion 24, A front link guide 23 that is seated to enable horizontal movement on the upper portion of the vehicle; The upper part is fastened to the fastening hole 22 or the joint part 24 of the front vertical hinge 21 and the lower part is fastened to the upper part of the support body 50 so that the joint part 24, And a vertical lift 27 for supporting the vertical lift 27 so as not to be shaken.

That is, the front vertical hinge 21 can rotate the bent joint 24 of the front link guide 23 located at the upper part of the front link 20 to the front lower part of the test plate 10 The upper portion is fixed to the front lower portion of the test plate 10 and the joint hole 22 formed at the lower portion which is a portion extending downward from the upper portion is fixed to the joint portion 24 of the front link guide 23 To be rotatably fastened.

3, the forward link guide 23 is formed with a bent-shaped joint 24 formed at a central portion thereof. Both ends of the forward link guide 23 extending in both directions around the joint 24 are positioned below the joint 24 And the joint portion 24 can be raised or lowered by the action of the actuator 40. [

At this time, the fastening holes 22 of the joint part 24 and the front vertical hinge 21 may be directly fastened to the shaft provided in the joint part 24, The fastening hole 22 may be fastened to the elongated shaft extension portion.

Both ends of the joint 24 extend to both sides of the support body 50 so that they can horizontally move on the upper portion of the support body 50. Both ends of the joint 24 are folded about the joint 24 So that the joint portion 24, which is vertically varied in height, can be stably supported on the upper portion of the support body 50.

At this time, the actuator 40 can be fastened to a shaft connected to the center of the joint 24 or the joint 24, and the action force of the actuator 40 can be lowered vertically to lower the height of the joint 24 (Not shown); 4 or 5, the force acting by the actuator 40 acts in the horizontal direction to horizontally move either one of both ends of the front link guide 23, It is also possible to lower the height of the base 24.

The upper portion of the vertical lift 27 is fastened to the fastening hole 22 or the joint 24 of the front vertical hinge 21 and the lower portion of the vertical lift 27 is fastened to the upper portion of the support body 50, The structure for supporting the joint 24 so as not to be shaken in the horizontal direction is such that the joint 24 of the front link 20 that has received the action by the actuator 40 moves up and down in the vertical direction only.

In this case, the vertical lift 27 may be a length-changing member such as a spline (not shown) or a cylinder formed with a groove length in the vertical direction, more preferably, as shown in FIG. 3, The upper portion of the cylinder housing 27a and the lower cylinder housing 27a are engaged with the coupling hole 22 or the joint portion 24 and the lower portion of the upper portion of the support body 50 is engaged with the upper portion of the cylinder housing 27a. May be interconnected by one or more cylinder rods 27b.

In the case where the front link 20 is constituted by the front vertical hinge 21, the front link guide 23 and the vertical lift 27 as described above, the actuator 40 is structured in a cylinder manner, The cylinder rod 41 of the front link guide 23 is configured to be coupled to one of the opposite ends of the front link guide 23 and the acting force of the actuator 40 acts in the direction of pushing or pulling the front link guide 23 in the horizontal direction, The vertical position of the joint part 24 located at the center of both ends of the front link guide 23 can be changed by moving the horizontal positions of both ends of the link guide 23. [

In addition, the front link 25 and the rear roller 26, which are seated on the upper portion of the supporting body 50 and horizontally moved, may be provided at both ends of the front link guide 23 having the above-described structure.

The front roller 25 and the rear roller 26 are mounted on the upper portion of the supporting body 50 to reduce the friction between the ends of the front link 23 and the upper portion of the supporting body 50, The horizontal mobility of both ends of the front link guide 23 which is horizontally moved instantaneously by the action force of the front link guide 23 is improved.

The support body 50 further includes a rail 51 at an upper portion of the support body 50. The rail 51 corresponds to a path of movement of the front roller 25 and the rear roller 26 of the front link guide 23 To form a length in the direction in which it is oriented.

That is, the rail 51 provides a horizontal movement path when the front roller 25 and the rear roller 26 horizontally move instantaneously, so that the front roller 25 and the rear roller 26 move horizontally So that the front of the test plate 10 can be prevented from shaking and moving downward.

In this connection, the front link 20 of the configuration described above may be provided in front of the test plate 10, wherein the joints 24 of the front link guide 23 included in the plurality of front links 20 And the both ends (or the front roller 25 and the rear roller 26 provided at both ends) may be located on the same line in the width direction of the test plate 10, and may be interconnected by a single axis.

Further, the present invention may be configured such that the front link 20 includes the front vertical hinge 21, the front link guide 23, and the vertical lift 27 as described above, but in another embodiment, The hinge and the forward link guide (not shown).

Specifically, the front link 20 includes a front vertical hinge 21 having an upper portion fixedly connected to the front lower portion of the test plate 10 and a lower portion formed with a fastening hole 22; The bent portion 24 formed at the center portion is coupled to the fastening hole 22 of the front vertical hinge 21 so as to be rotatable and has a front end which is either end of both ends of the joint portion 24, And a front link guide that is rotatably coupled to an upper portion of the support body 50. The front link guide 50 is rotatably supported on the upper portion of the support body 50,

That is, the front vertical hinge 21 has the same structure as the front vertical hinge 21 of the above-described embodiment, and the front link guide has a rear end, which is one of the ends, on the upper part of the supporting body 50 The front link 20 according to the present embodiment can include the vertical lift 27 because it is constructed so that it can be tightly coupled (rotated) horizontally.

Specifically, the joint portion 24 of the forward link guide is rotatably coupled to the fastening hole 22 of the front vertical hinge 21, and is provided with a front end, which is either end of both ends of the joint 24, Is secured to the upper portion of the support body 50 so as to be capable of horizontal movement. However, the rear end of the other end of the two ends is fixed to the upper portion of the support body 50 so as to be rotatable but fixed.

At this time, the actuator 40 is connected to the front end of the front link guide to apply an acting force. The front end of the front link guide moves horizontally by the action force of the actuator 40, ) Moves down or moves up and down. Further, since the rear end of the forward link guide is rotatably fixed to the support body 50, the front link guide rotates at a predetermined angle in the horizontal movement direction of the front end of the front link guide, but the fixed position is not changed.

The rear link 30 is configured to receive the acting force of the actuator 40 and to vary the height with respect to the vertical direction so that the rear of the test plate 10 is raised and lowered. 10, and the other side corresponding to the lower portion is fastened to the rear upper portion of the support body 50. [ At this time, the force exerted by the actuator 40 can be applied to the rear link 30 in the horizontal direction or the vertical direction depending on the shape of the rear link 30 and the position of the connecting portion between the actuator 40 and the rear link 30 .

In order to move the test plate 10 more stably while moving the test plate 10 up and down, the rear link 30 may be provided on the same side in the width direction of the rear lower portion of the test plate 10 as shown in FIG. 2 or 3 have.

The actuator 40 that exerts an acting force on the rear link 30 may be composed of the same single actuator as the actuator 40 connected to the front link 20 and a plurality of the actuators 40 And can be connected to the front link 20 and the rear link 30.

That is, when the front link 20 and the rear link 30 are connected as a single actuator 40 (not shown), the cylinder type actuator 40 is connected between the front link 20 and the rear link 30 One of the cylinder rods 41 is connected to the front link 20 and the other cylinder rod 41 is connected to the rear link 30 . At this time, the pneumatic or hydraulic pressure applied to the cylinder chamber of the cylinder housing acts on a space formed between the heads 42 of the pair of cylinder rods 41, so that a pair of cylinder rods 41 are simultaneously advanced It can be backward.

The front link 20 which has received the acting force as the single actuator 40 instantaneously lowers the front height of the test plate 10 and the rear link 30 is lowered to the rear height of the test plate 10 So that the test plate 10 can be tilted in a vertical direction similar to that of an actual vehicle collision.

Alternatively, the actuator 40 that exerts an acting force on the rear link 30 may be configured separately from the actuator 40 connected to the front link 20. That is, when the front link 20 and the rear link 30 are connected to each other as the separate actuator 40, the actuator 40 is independently connected to the front link 20 and the rear link 30, Can be added. Hereinafter, a case in which a plurality of actuators 40 are independently connected to the front link 20 and the rear link 30 will be described as a preferred embodiment.

The rear link 30 is formed between the rear lower portion of the test plate 10 and the support body 50 and is supported by the support body 50 so that the test plate 10 is supported by the action force of the actuator 40, 3 to 5, the upper portion of the rear link 30 is fastened to the rear lower portion of the test plate 10 so as to be horizontally movable A rear vertical hinge 31 having a fastening hole 32 formed at a lower portion thereof; A bent-shaped joint portion 34 formed at a central portion is rotatably coupled to a fastening hole 32 of the rear vertical hinge 31 and has a front end which is either end of both ends of the joint portion 34, And a rear link guide 33 which is seated on the upper part of the supporting body 50 so as to be horizontally movable while the other end of the rear end is rotatably fastened to the upper part of the supporting body 50 have.

That is, the rear vertical hinge 31 can rotate the bent joint portion 34 of the rear link guide 33 located at the upper portion of the rear link 30 to the rear lower portion of the test plate 10 And the rear vertical hinge 31 itself is fastened horizontally at the rear lower portion of the test plate 10 so that the upper portion of the rear vertical hinge 31 is fixed to the rear lower portion of the test plate 10 A joint hole 32 formed at a lower portion of the rear vertical hinge 31 which is slidably joined horizontally and which extends downward from the upper portion of the rear vertical hinge 31 is provided with a joint hole 34 To be rotatably fastened.

A slide plate 13 having a slide groove 14 formed in the lower portion of the test plate 10 so as to horizontally move the upper portion of the rear vertical hinge 31 is further provided, The upper portion of the vertical hinge 31 forms a constant movement path in the rear lower portion of the test plate 10 and can be stably moved.

6, the upper portion of the slide plate 13 is fixedly coupled to the lower rear portion of the test plate 10, and the slide groove 14 formed at the lower portion receives the upper portion of the rear vertical hinge 31 and moves horizontally . At this time, the direction in which the slide groove 14 is formed is the same as the acting direction by the actuator 40 described below.

3, the rear link guide 33 is formed with a bent-shaped joint portion 34 formed at a central portion thereof. Both ends of the rear link guide 33 extending in both directions around the joint portion 34 are positioned below the joint portion 34 And the joint portion 34 can be raised or lowered by the action force of the actuator 40. [

At this time, the fastening holes 32 of the joint part 34 and the rear vertical hinge 31 may be directly fastened to the shaft provided in the joint part 34, The fastening hole 32 may be fastened to the elongated shaft extension portion.

The front end of the rear link guide 33 extending at both ends of the joint part 34 is positioned so as to be horizontally movable on the upper portion of the support body 50. The other end of the rear link guide 33, And is rotatably coupled to the upper portion of the support body 50. [

The actuator 40 can be fastened to a shaft connected to the center of the joint 34 or the joint 34 and the action force of the actuator 40 acts vertically upward so that the height of the joint 34 (Not shown); 4 or 5, the force acting by the actuator 40 acts in the horizontal direction to horizontally move the front end of the rear link guide 33, 34 may be raised.

In the case where the rear link 30 includes the rear vertical hinge 31 and the front link guide 23 as described above, the actuator 40 is configured in a cylinder manner, and the cylinder rod 41 are configured to be fastened to the front end of the rear link guide 33. The acting force of the actuator 40 acts in the direction of pushing or pulling the rear link guide 33 in the horizontal direction, So that the joints 34 located at the upper and lower portions can be bent or unfolded and the vertical position can be changed.

At this time, the rear end of the rear link guide 33 is rotatably fixed to the upper portion of the support body 50, so that the front end of the rear link guide 33, which is acted upon by the actuator 40, The joint portion 34 of the link guide 33 is movable in the vertical direction.

The rear link guide 33 may be provided at the front end thereof with a front roller 35 mounted on the upper portion of the supporting body 50 to be horizontally moved.

That is, the front roller 35 provided at the front end of the rear link guide 33 is positioned on the upper part of the support body 50 and is disposed in the upper part of the support body 50 so that the friction between the front end of the rear link guide 33, And the lateral mobility of the front end of the rear link guide 33, which is momentarily horizontally moved by the action force of the actuator 40, is improved.

The support body 50 further includes a rail 52 at an upper portion thereof and the rail 52 is formed to have a length in a direction corresponding to the movement path of the front roller 35 of the rear link guide 33 .

That is, the rail 52 has an effect of ensuring a horizontal movement path when the front roller 35 is horizontally moved instantaneously, so that the front roller 25 is shaken and horizontally moved so that the rear of the test plate 10 is horizontally So that it can be prevented from ascending and moving.

The rail 51 supporting the front roller 25 and the rear roller 26 provided on the front link guide 23 and the front roller 35 provided on the rear link guide 33 The front and rear rollers 25 and 25 are provided on the forward link guide 23 and are formed of a single rail 51 and 52, 26 and the front roller 35 provided on the rear link guide 33 may be all supported.

The actuator 40 according to the present invention applies an instantaneous acting force to the front link 20 and the rear link 30 so that the test plate 10 in a horizontal state is tilted or tilted, Can be returned to a horizontal state, it is preferable to use a cylinder type.

The actuator 40 described below has a plurality of the actuators 40 and is fastened to the front link 20 and the rear link 30, respectively.

7 to 11, the cylinder type actuator 40 has a circular or polygonal outer periphery and is provided with a head 42 at the rear, and a front link guide 23 or a rear link guide 33 is provided at the front side. A cylinder rod 41 fastened to the cylinder block 41; A pressurizing pipe 43b to which a pneumatic or hydraulic pressure acts on the rear side of the actuator 40 and a pressurizing housing 43 in which the cylinder rod 41 is inwardly inserted into the hollow cylinder chamber 43a formed in the longitudinal direction of the actuator 40 ); A front portion of the cylinder rod 41 is inserted into a hollow cylinder chamber 45a communicated with the cylinder chamber 43a of the pressurizing housing 43 and connected to the front of the pressurizing housing 43, And a braking member 47 having a brake pad 48 capable of friction with an outer surface of the braking member 47.

Specifically, the cylinder rod 41 has a circular or polygonal outer periphery, and has a head 42 at the rear, and a front portion thereof is fastened to the front link guide 23 or the rear link guide 33, The head 42 provided in the cylinder chamber 43a is hermetically sealed with the inner surface of the cylinder chamber 43a of the pressurizing housing 43 to move horizontally in the cylinder chamber 43a with pneumatic or hydraulic pressure applied to the cylinder chamber 43a The cylinder rod 41 extending in the front of the head 42 has a smaller diameter than the head 42 and is horizontally movable without interfering with the inner surfaces of the cylinder chambers 43a, 44a, 45a.

At this time, the front of the cylinder rod 41 located opposite to the connection portion with the head 42 is fastened to the front link guide 23 or the rear link guide 33.

Further, the cylinder rod 41 may have various types of peripheries such as a circular shape or a polygonal shape as long as the frictional force of the braking member 47 with the brake pads 48 can be suitably formed. In the following, it is a preferred embodiment that the cylinder rod 41 has a quadrangular outer periphery.

In addition, the cylinder rod 41 may have a concave / convex surface 41a formed on the outer surface thereof, and the following brake pad 48 may interfere with the concavity and convexity 41a and may form a friction with the cylinder rod 41 .

The pressurizing housing 43 is connected to a pressurizing pipe 43b to which a pneumatic or hydraulic pressure acts on the rear of the pressurizing housing 43. The cylinder rod 41 is connected to a hollow cylinder chamber 43a formed in the longitudinal direction of the actuator 40, And the cylinder rod 41 is instantaneously advanced by pneumatic or hydraulic pressure applied to the cylinder chamber 43a.

At this time, the pneumatic or hydraulic pressure applied through the pressure pipe 43b can be supplied from the general pressure generator or the pressure tank 60, and the pressure applied to the cylinder chamber 43a is provided to the rear of the cylinder rod 41 And the advancing force of the advancing cylinder rod 41 acts as an acting force exerted on the front link 20 or the rear link 30. The forward movement of the cylinder rod 41,

A communication hole 43c is formed in a portion corresponding to the front of the pressurizing housing 43 so that the cylinder chamber 43a of the pressurizing housing 43 can communicate with the outside, Air is introduced into the front portion of the cylinder chamber 43a corresponding to the front portion of the cylinder head 42 when the cylinder 43 is moved from the front to the rear of the chamber 43a so that the cylinder rod 41 can be easily inserted into the cylinder chamber 43a The front end portion of the cylinder chamber 43a corresponding to the front portion of the cylinder head 42 when the cylinder rod 41 is momentarily advanced and moved forward from the rear of the cylinder chamber 43a, So that the cylinder rod 41 can be advanced to the front of the cylinder chamber 43a more quickly.

At this time, the communication hole 43c is connected to an air injection device for injecting air or a supply and suction device for discharging air, so that air injected or discharged through the communication hole 43c can be pressurized or sucked.

The braking housing 45 is connected to the front of the pressurizing housing 43 and is connected to a hollow cylinder chamber 45a communicating with the cylinder chamber 43a of the pressurizing housing 43, And a braking member 47 having a brake pad 48 capable of friction with the outer surface of the cylinder rod 41. The pressure in the cylinder chamber 43a of the pressure housing 43 is controlled by the pressure The cylinder rod 41 is grasped while the rod 41 is formed so as to be able to advance the rod 41 instantaneously or the instantaneously advancing cylinder rod 41 is allowed to advance after a certain distance and then stopped .

That is, the braking housing 45 is connected to the front of the pressurizing housing 43 so that the cylinder chamber 45a can communicate with the cylinder chamber 43a of the pressurizing housing 43 in a longitudinal direction. At this time, the cylinder chamber 45a of the braking housing 45 and the cylinder chamber 43a of the pressurizing housing 43 have the same inner shape and inner diameter so as not to interfere with advancement of the cylinder rod 41.

The cylinder rod 41 is longer than the length of the cylinder chamber 43a of the pressurizing housing 43 plus the length of the cylinder chamber 45a of the braking housing 45. The front portion of the cylinder rod 41 is connected to the braking housing 45, It can be understood that it is configured so as to be drawn out to the front of the cylinder chamber 45a of the front link 45 and to be fastened to the front link 20 or the rear link 30. [

The braking member 47 provided in the braking housing 45 is located such that the brake pad 48 is disposed inside the cylinder chamber 45a of the braking housing 45 or outside the braking housing 45, So that the outer surface of the cylinder rod 41 and the brake pad 48 can be interfered with each other to be rubbed or released from friction.

That is, the braking housing 45 may be configured in various forms to horizontally move the cylinder rod 41 to the cylinder chamber 45a and to hold the cylinder rod 41 as the braking member 47 The cylinder rod 41 can be stopped. However, as shown in Figs. 9 and 10, the body 46 has the hollow cylinder chamber 45a formed at the center in the longitudinal direction of the actuator 40; One or more lower brake pads (48b) fixedly provided under the inner surface of the cylinder chamber (45a); Is provided on the upper side or the side of the inner surface of the cylinder chamber (45a) and is movable up and down in a direction perpendicular to the outer surface of the cylinder rod (41) to be able to be frictionally or frictionally released from the outer surface of the cylinder rod An upper brake pad 48a; And a braking member 47 fastened at one end to the body 46 and fastened to the end of the lifting rod 47a in which the upper brake pad 48a moves up and down in the direction of the cylinder chamber 45a can do.

That is, the body 46 is in the form of a braking housing 45 and a hollow cylinder chamber 45a is formed at the center in the longitudinal direction of the actuator 40. The braking housing 45 is connected to the pressure housing 43 ).

The lower brake pads 48b are provided in a fixed state below the inner surface of the cylinder chamber 45a and provide a frictional force to the lower portion of the cylinder rod 41 which is inserted into the cylinder chamber 45a .

At this time, the lower brake pad 48b is normally subjected to friction force due to interference between the cylinder rod 41 and the lower brake pad 48b formed by the own weight of the cylinder rod 41, but the upper brake pad 48a, The frictional force due to the interference is increased due to a part of the pressing force acting between the lower brake pad 48b and the lower portion of the cylinder rod 41 when the frictional force is applied to the upper portion of the cylinder rod 41. [

The friction surface of the lower brake pad 48b may protrude more toward the center of the cylinder chamber 45a than the lower surface of the inner surface of the cylinder chamber 45a.

10, when the cylinder rod 41 has a quadrangular outer periphery and one of the vertexes is positioned lower and the cylinder rod 41 is recessed into the cylinder chamber 45a in the shape of a diamond, And the lower portion of the lower portion of the rod-shaped cylinder chamber 45a so as to correspond to both lower surfaces of the lower portion of the cylinder rod 41. [

The upper brake pad 48a is provided on the upper side or the side of the inner surface of the cylinder chamber 45a and is movable up and down in a direction perpendicular to the outer surface of the cylinder rod 41, And has the same structure as that of the lower brake pad 48b but is provided so as to be movable up or down on the inner surface of the cylinder chamber 45a or on the side of the cylinder chamber 45a.

The upper brake pad 48a is provided in the cylinder chamber 45a at a position corresponding to the upper or side of the cylinder rod 41 and is moved in the direction of the cylinder rod 41, Thereby forming a frictional force with respect to the cylinder rod 41.

Specifically, the upper brake pad 48a holds the cylinder rod 41 before the cylinder rod 41 is advanced, or moves the upper or the side of the cylinder rod 41 to stop the cylinder rod 41 that is moving forward. So as to form a frictional force.

At this time, the braking member 47 is fastened to one end of the braking member 47 and the upper brake pad 48a is fastened to the end of the lifting rod 47a, which moves up and down in the direction of the cylinder chamber 45a, And provides a boosting force to the second arm 48a.

That is, the braking member 47 is configured to provide a pressing force for stopping the cylinder rod 41, and one side of the braking member 47 is engaged with the body 46. The braking member 47 lifts the lifting rod 47a by hydraulic pressure or pneumatic pressure, The upper brake pad 48a fastened to one side of the cylinder chamber 45a is moved up and down within the cylinder chamber 45a.

Further, the braking member 47 and the upper brake pad 48a may be configured in various numbers according to the judgment of a person skilled in the art.

The present invention is also characterized in that a hollow cylinder chamber (not shown) is provided between the pressurizing housing 43 and the braking housing 45 and communicated with the cylinder chamber 43a of the pressurizing housing 43, It is possible to further include a buffer housing 44 having an intermediate portion of the cylinder rod 41 inserted into the cylinder rod 41a and having a buffer member 44b capable of interfering with the head 42 of the cylinder rod 41 have.

That is, the buffer housing 44 is connected to the front of the pressure housing 43 at the rear side and the rear side of the braking housing 45 is connected to the rear side of the braking housing 45 .

At this time, the cylinder chamber 44a formed in the buffer housing 44 communicates with the cylinder chamber 43a of the pressurizing housing 43 at its rear side and the cylinder chamber 44a of the braking housing 45 at its front side The cylinder chamber 43a of the pressurizing housing 43 and the inner circumference of the cylinder chamber 45a of the braking housing 45 have the same shape and inner diameters. The cylinder chamber 44a is provided with a cylinder rod 41 And the intermediate portion of the cylinder rod 41 is inserted when the head 42 is positioned behind the cylinder chamber 43a of the pressurizing housing 43. [

The cushioning member 44b provided in the cylinder chamber 44a of the shock-absorbing housing 44 is configured such that when the cylinder rod 41 is momentarily advanced, the cylinder rod 41 is excessively advanced or the forward force is excessively applied to the braking member 47 so that the head 42 provided on the cylinder rod 41 is prevented from colliding with the braking housing 45.

That is, the buffer member 44b is provided in the cylinder chamber 44a of the buffer housing 44 so that it can be interfered only with the head 42 provided on the cylinder rod 41 without interfering with the cylinder rod 41 And may be configured in various manners as long as the head 42 is too advanced to collide with the cushioning member 44b so as to buffer the advancing force of the head 42. [

The cushioning member 44b may be made of a metal material or a synthetic resin. The cushioning member 44b and the cushioning member 44b may be pneumatically or hydraulically It is possible to form a space in the cylinder chamber 44a of the shock absorbing housing 44 in which the shock absorbing member 44b is provided.

Specifically, the hollow cylinder chamber 44a of the buffer housing 44 is formed at the center of the cylinder chamber 44a and includes a main cylinder chamber 44a-1 into which a middle portion of the cylinder rod 41 is inserted; And an auxiliary cylinder chamber 44a-2 formed on the outside of the main cylinder chamber 44a-1 and partitioned as the partition wall 44a-5 into the main cylinder chamber 44a-1; An inner hole 44b-1 having an inner periphery corresponding to the outer periphery of the intermediate portion of the cylinder rod 41 is formed in the rear of the center of the buffer member 44b, and a portion of the front end is formed in the auxiliary cylinder chamber 44a- 2). ≪ / RTI >

That is, the main cylinder chamber 44a-1 is formed at the center of the cylinder chamber 44a of the shock-absorbing housing 44, and the middle portion of the cylinder rod 41 is inserted therein. (43a).

The auxiliary cylinder chamber 44a-2 is formed on the outer side of the main cylinder chamber 44a-1 and is formed as a part of the partition wall 44a-5 divided from the main cylinder chamber 44a-1, Is a space partitioning the main cylinder chamber 44a-1 as a partition wall 44a-5 to accommodate a portion of the buffer member 44b as shown in Fig.

At this time, since the partition wall 44a-5 forms the inner circumferential surface of the main cylinder chamber 44a-1 on the inner side and the inner inner surface of the auxiliary cylinder chamber 44a-2 on the outer side, 1 is formed in the main cylinder chamber 44a-1 formed on the inner side of the partition wall 44a-5 and the auxiliary cylinder chamber 44a-2 formed by the outside of the partition wall 44a-5 is provided with the buffer member 44b ) Is inserted.

The partition wall 44a-5 is formed from a portion corresponding to the front portion of the buffer housing 44 and is formed only to the rear portion so that the main cylinder chamber 44a-1 corresponding to the rear of the buffer housing 44, So that a portion of the seal 44a-2 can communicate with each other.

At this time, the buffer member 44b is formed with an inner hole 44b-1 having an inner periphery corresponding to the outer periphery of the middle portion of the cylinder rod 41 at the center rear, The inner diameter of the inner hole 44b-1 is larger than the outer diameter of the head 42 of the cylinder rod 41. The inner diameter of the inner hole 44b- So that a rear portion of the buffer member 44b in which the inner hole 44b-1 is formed can be interfered with the head 42. [

The auxiliary cylinder chamber 44a-2 is configured to form an airtight cushioning space 44a-3 between the front portion of the cushioning member 44b and the cushioning chamber 44a- The buffer space 44a-3 is communicated with the outside of the buffer housing 44 through the communication passage 44a-4, And may be configured to be supplied or externally pneumatically or hydraulically discharged.

That is, the front portion of the buffer member 44b inserted into the auxiliary cylinder chamber 44a-2 may be entirely inserted into the auxiliary cylinder chamber 44a-2 so as to be securely fastened. However, 3 is formed between the front end of the auxiliary cylinder chamber 44a-2 and the front end of the auxiliary cylinder chamber 44a-2 and the front end of the auxiliary cylinder chamber 44a-2 by the pneumatic or hydraulic pressure that can be formed in the cushioning space 44a- 44b can be buffered again.

At this time, the main cylinder chamber 44a-1 in which the partition wall 44a-5 is not formed and the communication portion 44a-6 of the auxiliary cylinder chamber 44a-2 are connected to the cushioning member 44b- 44b are configured to have a width such that they can move from the rear to the front when they are impacted by the head 42. [

The following is a description of an operation process of a pitching simulator for a vehicle when a crash of an automobile is reproduced using a pitching simulator for a car according to a preferred embodiment of the present invention.

First, the support body 50 is fixed to the ground in a state of being parallel to the ground. An automobile seat is provided on an upper portion of the test plate 10 positioned above the support body 50, A human-shaped model body is seated, and the test plate 10 has a state of being grounded.

The cylinder type actuator 40 is composed of two cylinders, and the cylinder rod 41 is connected to the front link 20 and the rear link 30. The cylinder rod 41 of the actuator 40 is advanced to the left in the figure and the actuator 40 connected to the rear link 30 is moved forward The cylinder rod 41 of the actuator 40 is advanced to the right in the figure.

The actuator 40 to be connected to the front link 20 is provided on the assumption that the two actuators 40 have the same structure but differ only in the direction in which the cylinder rod 41 advances in the opposite direction, And the operation of the actuator 40 will be described with reference to Figs. 12A to 12F.

12A, before the test plate 10 is placed in a horizontal state, the cylinder rod 41 is advanced forward, and the head 42 is positioned on the front side of the cylinder chamber 43a of the pressurizing housing 43 And the air is introduced into the cylinder chamber 43a of the pressure housing 43 through the communication hole 43c of the pressure housing 43 so that the cylinder rod 41 is positioned rearward (rightward in the figure) of the cylinder chamber 43a, .

At this time, the air contained in the cylinder chamber 43a corresponding to the rear side of the head 42 provided in the cylinder rod 41 is discharged through the pressurizing pipe 43b formed in the rear of the cylinder chamber 43a.

Thereafter, as shown in FIG. 12B, the buffer space 44a-3 formed in the auxiliary cylinder chamber 44a-2 of the buffer housing 44 is pressurized and filled with oil through the communication passage 44a-4, The buffering member 44b is moved toward the rear side of the buffer housing 44 and the buffer space 44a-3 is formed to be larger, and the buffer space 44a-3 is maintained in a state where the oil is charged to a predetermined pressure do.

12C, the braking member 47 of the braking housing 45 moves the lifting rod 47a in the direction of the cylinder chamber 45a of the braking housing 45 to move the lifting rod 47a to the upper The brake pad 48a presses the upper portion of the front portion of the cylinder rod 41 and the front portion of the cylinder rod 41 presses the lower brake pad 48b provided below the inner surface of the cylinder chamber 45a, (41) is grasped by a gripping force formed by the upper brake pad (48a) and the lower brake pad (48b).

12D, when the high-pressure air is charged into the cylinder chamber 43a of the pressure housing 43, the gripping force of the upper brake pad 48a and the lower brake pad 48b is applied to the head of the cylinder rod 41 (42).

Thereafter, as shown in FIG. 12D, air is pressurized and charged to the rear side of the cylinder chamber 43a through the pressurizing pipe 43b provided in the rear of the cylinder chamber 43a of the pressurizing housing 43.

12E, the braking member 47 releases the gripping force against the cylinder rod 41, and the cylinder rod 41, from which the gripping force has been released, is released from the cylinder chamber 41 on the rear side of the head 42 of the cylinder rod 41, The actuator 40 is instantaneously advanced forward of the actuator 40 by the air pressure applied at the portion of the piston 43a.

At this time, air contained in the front side (the front side of the head 42) of the cylinder chamber 43a of the pressurizing housing 43 is quickly discharged by the air suction device connected to the communication hole 43c formed in the pressure housing 43 So that the head 42 of the advancing cylinder rod 41 can move horizontally more quickly toward the front of the cylinder chamber 43a of the pressurizing housing 43.

12F, the braking member 47 of the braking housing 45 is operated to move the lifting rod 47a to the cylinder chamber of the braking housing 45 45a so that the upper brake pad 48a provided at the end of the lifting rod 47a presses the upper portion of the rear portion of the cylinder rod 41 and the rear portion of the cylinder rod 41 moves downward in the cylinder chamber 45a The lower brake pad 48b provided at the lower portion of the surface is pressed so that the cylinder rod 41 is gripped by the gripping force formed by the upper brake pad 48a and the lower brake pad 48b.

At this time, the head 42 provided on the cylinder rod 41 collides with the cushioning member 44b provided in the cylinder chamber 44a of the cushioning housing 44, and the cushioning member 44b is impacted by the impact force applied thereto. And the oil filled in the buffer space 44a-3 at a certain pressure is discharged through the communication passage 44a-4 (or another discharge communication passage 44a-4 '). do.

And the front end of the front link guide 23 of the front link 20 to which an acting force is applied by the advancement of the cylinder rod 41 (the cylinder rod 41 is fastened to the front end of the front link guide 23) The rear end of the front link guide 23 is horizontally moved rearward and the joint 24 of the front link guide 23 is lowered because the vertical lift 27 is only vertically movable.

At this time, the joint part 24 descends together with the front vertical hinge 21 so that the front of the test plate 10 fastened to the upper part of the front vertical hinge 21 is inclined downward in the direction approaching the ground.

The rear link 30 is moved in the forward and backward directions by the operation of the other actuator 40 having the same configuration as that of the actuator 40 fastened to the front link 20, (The cylinder rod 41 of the actuator 40 is fastened to the front end of the rear link guide 33), the rear link guide 33 is moved horizontally rearward of the front end of the rear link guide 33, The joint portion 34 of the handle is raised.

At this time, the joint part 34 raises the rear vertical hinge 31 so that the rear of the test plate 10 fastened to the upper part of the rear vertical hinge 31 is inclined upward in the direction away from the ground.

As a result, the front side of the test plate 10 on which the test object is mounted is lowered and the rear side is raised so that the test plate 10 is tilted at a slope similar to an actual vehicle collision and a pitching moment moment.

At this time, various sensors attached to the test plate 10 or the object under test can collect the same information as the situation caused by the reproduced car crash.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. And various changes can be made without departing from the scope of the invention.

10: test plate 11: upper plate
12: upper plate frame 13: slide plate
14: slide groove 20: forward link
21: front vertical hinge 22: fastening hole
23: front link guide 24: joint of front link guide
25: front roller of forward link guide 26: rear roller of forward link guide
27: vertical lift 27a: cylinder housing
27b: cylinder rod 30: rear link
31: rear vertical hinge 32: fastening hole
33: rear link guide 34: joint of rear link guide
35: front roller of rear link guide 40:
41: cylinder rod 41a: concave and convex
42: head 43: pressure housing
43a; Cylinder chamber 43b: pressure piping
43c: communication hole 44: buffer housing
44a: Cylinder chamber 44a-1: Main cylinder chamber
44a-2: Auxiliary cylinder chamber 44a-3: Cushioning space
44a-4: communication passage 44a-5: partition wall
44a-6: communicating portion 44b: buffer member
44b-1: Inner hole 45: Braking housing
45a: cylinder chamber 46: braking housing body
47: braking member 47a:
48: Brake pad 48a: Upper brake pad
48b: lower brake pad 50: support body
51, 52: rail 60: pressure tank

Claims (19)

A test plate (10) on which a test object is mounted;
A front link 20 provided at a front lower portion of the test plate 10 to move the test plate 10 up and down;
A rear link 30 provided at a rear lower portion of the test plate 10 to move up and down the rear of the test plate 10;
At least one actuator (40) fastened to the front link (20) and the rear link (30) to provide a lift force to the test plate (10);
And a support body (50), in which a part of the front link (20), a part of the rear link (30) and a part of the actuator (40) are fastened to each other to provide a supporting force,
The front link (20)
A front vertical hinge 21 having an upper portion fixedly connected to the front lower portion of the test plate 10 and a lower portion formed with a fastening hole 22;
The bent portion 24 formed at the center portion is rotatably coupled to the fastening hole 22 of the front vertical hinge 21. Both ends of the joint portion 24, which are both extended from the joint portion 24, A front link guide 23 that is seated to enable horizontal movement on the upper portion of the vehicle;
The upper part is fastened to the fastening hole 22 or the joint part 24 of the front vertical hinge 21 and the lower part is fastened to the upper part of the support body 50 so that the joint part 24, And a vertical lift (27) for supporting it so as not to be shaken,
The actuator (40) is constituted by a cylinder system,
The cylinder type actuator (40)
A cylinder rod 41 having an outer periphery of a circular or polygonal shape and provided with a head 42 at the rear, and a front end of which is fastened to one of both ends of the front link guide 23;
A pressurizing pipe 43b to which a pneumatic or hydraulic pressure acts on the rear side of the actuator 40 and a pressurizing housing 43 in which the cylinder rod 41 is inwardly inserted into the hollow cylinder chamber 43a formed in the longitudinal direction of the actuator 40 );
A front portion of the cylinder rod 41 is inserted into a hollow cylinder chamber 45a communicated with the cylinder chamber 43a of the pressurizing housing 43 and connected to the front of the pressurizing housing 43, , And a braking member (47) having a brake pad (48) capable of friction with the outer surface of the braking member (47)
The braking member 47 moves the lifting rod 47a upward or downward by hydraulic pressure or air pressure so that the brake pad 48 rubs against the outer surface of the cylinder rod 41,
A hollow cylinder chamber 44a which is connected to the front of the pressure housing 43 and communicates with the cylinder chamber 43a of the pressure housing 43 is provided between the pressurizing housing 43 and the braking housing 45, And a buffer housing 44 having a middle portion of the cylinder rod 41 and having a buffer member 44b capable of interfering with the head 42 of the cylinder rod 41,
The hollow cylinder chamber (44a) of the buffer housing (44)
A main cylinder chamber 44a-1 formed at the center of the cylinder chamber 44a and having an intermediate portion of the cylinder rod 41 inserted therein;
And an auxiliary cylinder chamber 44a-2 formed on the outer side of the main cylinder chamber 44a-1 and partly partitioned into the main cylinder chamber 44a-1 as a partition wall 44a-5,
An inner hole 44b-1 having an inner periphery corresponding to the outer periphery of the intermediate portion of the cylinder rod 41 is formed in the rear of the center of the buffer member 44b and a portion of the front end is formed in the auxiliary cylinder chamber 44a -2)
The auxiliary cylinder chamber 44a-2 is configured to form a cushioning space 44a-3 that is hermetically sealed with the front portion of the cushioning member 44b, The buffer space 44a-3 is communicated with the outside of the buffer housing 44 through the communication passage 44a-4, And a pneumatic or hydraulic pressure externally supplied to the vehicle.
The method according to claim 1,
The test plate (10)
An upper plate (11) on which a test object is mounted;
And an upper plate frame (12) provided at a lower portion of the upper plate (11) to support the upper plate (11), the upper plate frame (12) comprising a plurality of frames coupled to each other.
The method according to claim 1,
The test plate (10)
Characterized in that the front link (20) is configured to lower the front of the test plate (10) and the rear link (30) to rise behind the test plate (10) Pitching simulator for.
delete delete The method according to claim 1,
At both ends of the front link guide 23,
And a front roller (25) and a rear roller (26) are mounted on the upper portion of the support body (50) and horizontally moved, respectively.
The method according to claim 6,
The support body (50)
And the rail 51 is configured to have a length in a direction corresponding to the movement path of the front roller 25 and the rear roller 26 of the front link guide 23, Wherein the pitching simulator is a pitching simulator for a vehicle.
The method according to claim 1,
The front link (20)
A front vertical hinge 21 having an upper portion fixedly connected to the front lower portion of the test plate 10 and a lower portion provided with a fastening hole 22;
The bent portion 24 formed at the center portion is coupled to the fastening hole 22 of the front vertical hinge 21 so as to be rotatable and has a front end which is either end of both ends of the joint portion 24, And a front link guide which is seated on the upper part of the support body 50 so as to be capable of horizontally moving and the other end of which is connected to the upper part of the support body 50 so as to be rotatable. Automotive pitching simulator.
The method according to claim 1,
The rear link (30)
A rear vertical hinge 31 fastened horizontally on a rear lower portion of the test plate 10 and having a fastening hole 32 formed on the lower portion thereof;
A bent-shaped joint portion 34 formed at a central portion is rotatably coupled to a fastening hole 32 of the rear vertical hinge 31 and has a front end which is either end of both ends of the joint portion 34, And a rear link guide 33 which is seated on the upper portion of the support body 50 so as to be horizontally movable and the other end of which is rotatably engaged with the upper portion of the support body 50 A pitching simulator for a car characterized by.
10. The method of claim 9,
In the rear lower portion of the test plate 10,
Further comprising a slide plate (13) formed at a lower portion thereof with a slide groove (14) into which the upper portion of the rear vertical hinge (31) is horizontally movable.
delete 10. The method of claim 9,
At the front end of the rear link guide 33,
And a front roller (35) placed on the upper portion of the support body (50) and horizontally moved.
13. The method of claim 12,
The support body (50)
Characterized in that it further comprises a rail (52) on its upper portion and the rail (52) is configured to form a length in a direction corresponding to the movement path of the front roller (35) of the rear link guide Pitching simulator for.
delete The method according to claim 1,
The braking housing (45)
A body 46 in which a hollow cylinder chamber 45a is formed at the center in the longitudinal direction of the actuator 40;
One or more lower brake pads (48b) fixedly provided under the inner surface of the cylinder chamber (45a);
Is provided on the upper side or the side of the inner surface of the cylinder chamber (45a) and is movable up and down in a direction perpendicular to the outer surface of the cylinder rod (41) to be able to be frictionally or frictionally released from the outer surface of the cylinder rod An upper brake pad 48a;
And a braking member 47 fastened at one end to the body 46 and fastened to the end of the lifting rod 47a in which the upper brake pad 48a moves up and down in the direction of the cylinder chamber 45a Wherein the pitching simulator is a pitching simulator for a vehicle.
The method according to claim 1,
The cylinder rod (41)
And the brake pad (48) is configured to interfere with the unevenness (41a) and to form a friction with the cylinder rod (41).
delete delete delete

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