KR19990008869A - Collision of collision, collision impact shock absorber - Google Patents

Abstract

The present invention relates to a collision of a traveling body, such as a vehicle, impact shock absorber impact shock absorbing unit, usually a collision of the traveling body. The piston rod (2), (according to the operation of the shock absorbing buffer (1) of the impact shock absorber 2 ') and the pistons 9 and 9' are operated and the shock absorbing bumper 1, the piston rods 2, 2 ', piston 9 and 9 when the traveling body collides or collides. The collision of the traveling body which causes the shock transmitted through ') to be alleviated in the buffer cylinders 4 and 4'.

Description

Collision and collision shock absorber impact buffer

1 is a front view schematically showing a shape in which the present invention is mounted on an automobile.

2 is a plan view schematically showing the shape when the vehicle is stopped or below a certain speed when the present invention is mounted on the vehicle.

Figure 3 is a plan view schematically showing the shape when the vehicle is running at a certain speed when the present invention is mounted on the vehicle.

4 is a circuit diagram of an embodiment of the present invention.

5 is a diagram showing a case of blocking the flow of pressure in the detailed view of the rapid flow shutoff valve constituting the circuit of an embodiment of the present invention.

6 is a view showing a case where the flow of pressure is possible in the detailed view of the rapid flow shutoff valve constituting the circuit of one embodiment of the present invention.

Explanation of symbols for the main parts of the drawings

1: Shock Absorption Bumper 2,2 ': Piston Rod

3,4 ': Actuator section 4,4': Shock-absorbing cylinder section

5: Pneumatic tank 6,6 ': Rapid flow shutoff valve

Detailed description of the invention

The present invention provides a pneumatic actuator, a hydraulic actuator, a collision of a traveling body that changes the position of the shock absorbing bumper according to the speed of the traveling body by using a gear device such as a rack and pinion, a feed screw, or the like. When the vehicle moves, the impact absorbing bumper, the piston rod part, and the piston shocks are greatly reduced by the pneumatic pressure of the shock absorber cylinder, etc., to protect the personnel and the vehicle. A shock absorber of a collision or collision shock absorber.

Conventional vehicle bumpers have various structures and materials for absorbing shocks such as reinforcing sponges or FBC grills to attenuate external shocks, but vehicle bodies such as vehicles collide or collide at high speed. The city also damaged the bumper and bodywork and had a significant lack of protection for the occupants and vehicles.

In addition, a collision of a traveling body of Patent Application No. 37480 filed on August 31, 1996, using a hydraulic circuit as a collision shock absorber, or a collision of a traveling body of Patent Application No. 1667 filed on January 22, 1997 Collision of a traveling body using a circuit for operating a positioning motor, such as a shock absorber. Collision impact shock device or a collision of a traveling body of Patent Application No. 13047 filed April 9, 1997. Collision of a traveling body using a circuit. Collision of each traveling body such as a collision shock absorber. An impact shock absorber was required to be installed efficiently in a collision shock absorber.

Therefore, according to the present invention, when the traveling body such as a vehicle is stopped, the shock absorbing bumper 1 having a conventional bumper function is approached to the front body of the traveling body so that the vehicle is parked due to the shock absorbing bumper 1 when the traveling body is stopped or at low speed. When the traveling body such as a vehicle is traveling, the shock absorbing bumper 1 is spaced apart from the body of the traveling body in front of the traveling body as the speed increases according to the traveling speed. In the event of a collision or collision while traveling, the shock absorbing bumper 1 of the shock absorber first contacts the collision or colliding object and absorbs the impact by the pneumatic pressure of the buffer cylinders 4 and 4 '. In order to protect the occupants and the vehicle while reducing the impact force by increasing the time when the speed of the vehicle is rapidly changed in close proximity.

In order to achieve the above object, according to the present invention, the impact absorbing bumper 1 smoothly moves away from the traveling body or moves closer to the traveling body according to the traveling speed of the traveling body while the driving body travels while there is a collision or a collision. Pneumatic passages (7), (7 '), (8) and (8') are connected to the buffer cylinders (4) and (4 ') and the pneumatic tank (5) so as to be relaxed. ) And (8 '), the shock buffer part comprised by providing the rapid flow shutoff valves 6 and 6' between the buffer cylinder parts 4 and 4 'and the pneumatic tank 5, respectively.

This will be described in detail according to an embodiment based on the accompanying drawings.

1 and 2 show a general view of the shock absorber of the shock absorber of the present invention together with the action of the shock absorber. FIG. 1 shows the piston rod 2, when the traveling body is traveling at high speed. (2 ') and the shock absorbing bumper (1) mounted on the actuator parts (3) and (3') is a front view showing the front of the traveling body, and FIG. It is a top view which shows that the shock absorption bumper 1 is close to the body of a traveling body when it is running.

FIG. 3 shows the shock absorbing bumper 1 mounted on the piston rods 2, 2 'and the actuators 3, 3' when the traveling body is traveling at high speed as in FIG. Is a plan view showing the state of protruding to the front of the.

FIG. 4 implements an action corresponding to the operation of the shock absorbing bumper 1 in the impact buffer according to the action of the shock absorbing bumper 1 according to the speed of the traveling body as shown in FIGS. 1, 2, and 3. And one embodiment of a circuit configured to absorb a shock during a collision or collision.

Referring to the operation of the present invention in detail based on each drawing, first of all, the use of a hydraulic circuit, such as a collision and collision impact buffer device of Patent Application No. 37480, filed on August 31, 1996 or filed on January 22, 1997 Collision of a traveling body of Patent Application No. 1667. Collision of a traveling body using a circuit for operating a positioning motor, such as a collision shock absorber or a collision shock absorber or a patent application filed on April 9, 1997. Collision of traveling body of an arc. Collision of a traveling body using a pneumatic circuit, such as a collision shock absorber. Collision of each traveling body, such as a collision shock absorber. Impact when the traveling speed of the traveling body increases according to the impact shock absorber. When the absorption bumper 1 is spaced apart in front of the traveling body and the speed of the traveling body is lowered or stopped, the shock absorbing bumper 1 comes close to the traveling body.

The actuator parts 3 and 3 'shown in FIG. 1 and FIG. 3 and FIG. 3 are cylinders and pistons in the above-mentioned hydraulic circuit system, positioning motor circuit system or pneumatic circuit system described above. Actuators such as rods, feed threads, and bumper connections are shown here, and are shown in the form of a cross between the front face of the traveling body and the shock-absorbing bumper (1), and the actuator parts (3) and (3 ') come out. As the length increases according to the action of each desired circuit, the shock absorbing bumper 1 is spaced apart from the traveling body, and the shortening indicates that the shock absorbing bumper 1 is close to the traveling body.

In FIG. 1 and FIG. 2 and FIG. 3, the actuators 3 and 3 'act to move the shock absorbing bumper 1 away from the traveling body or to approach the traveling body according to the speed of the traveling body and the piston rod. The parts 2 and 2 'are passively operated in response to the action of the shock absorbing bumper 1.

Here, the collision of the traveling body of the present invention, which acts according to the operation of the shock absorbing bumper 1 according to FIG. 4, will be described as follows.

4 is a view showing the impact absorbing bumper 1 mounted on the piston rods 2 and 2 'of the impact shock absorbing device. Collision of a traveling vehicle of various types of applications that are spaced apart from or approaching the traveling vehicle. An actuator of a collision shock absorber is not shown.

In FIG. 4, the pneumatic tank 5 is compressed with air at an appropriate pressure, and the buffer cylinders 4, 4 'are provided by the pneumatic passages 7, 7', 8, and 8 '. Pneumatic pressure is transferred evenly to the interiors 16, 16 ', 17, and 17' of the.

When the shock absorbing bumper 1 is spaced forward or closes in the direction of the traveling body, that is, the buffer cylinders 4 and 4 'by the operation of each of the previously applied actuators according to the speed of the traveling body, the shock absorbing bumper The piston rods 2, 2 'connected to (1) and the pistons 9, 9' also operate in the same direction as the shock absorbing bumper 1, while the shock absorbing cylinders 4, 4 '16', '16' and '17' and '17' are provided with air of suitable pressure on both sides of the piston 9, 9 ', i.e., the inner side 16 of the shock absorber bumper 1, It is stored at the same pressure in the 16 'and the opposite side 17, 17', and both sides of the pneumatic tank 5 and the cylinders 4, 4 'are pneumatic passages 7, 7 '), (8), (8'), so that pneumatic inlet and outlet is free from both sides (16), (16 '), (17), (17') of both sides of piston (9), (9 '). Therefore, the operation of the shock absorbing bumper 1 according to the speed of the traveling body is not interfered with the collision of the traveling body of the present invention. It made smoothly.

Thus, the collision of the traveling body of the present invention. The impact shock absorber The shock absorber is operated smoothly according to the traveling speed of the traveling body, and the impact absorbing bumper (1), the piston rod (2), The shock transmitted through the 2 ', the piston 9, and the' 'is alleviated by the pneumatic cylinders 4 and 4' by pneumatic or the like.

In the present embodiment, since the pneumatic pressure from the pneumatic tank 5 is compressed to an appropriate input inside the buffer cylinders 4 and 4 ', it is fluid in the initial stage of the collision or collision due to the nature of the gas compressed in a certain space. It adapts to the impact and later strongly responds to the impact, which greatly increases the time when the speed of the moving body changes, which is proportional to the mass and speed of the moving body and inversely proportional to the amount of time the speed changes. According to the principle of the impact force to significantly reduce the impact force applied to the vehicle to protect the personnel and the vehicle on the vehicle.

Here, the valves 6 and 6 'which are located in the middle of the pneumatic passages 8 and 8 are rapid flow blocking valves, and the shock absorbing bumper 1 and the piston rod part 2 according to the traveling speed of the normal moving body are used. (2 '), pneumatic flow from the buffer cylinder (4), (4') to the pneumatic tank (5) or the buffer cylinder in the pneumatic tank (5) according to the forward and backward of the piston (9), (9 ') 4) The pneumatic flow to (4 ') passes smoothly, and the traveling body collides or collides while driving, and a sudden shock is generated by the shock absorbing bumper (1), piston rods (2), (2'), piston (9), When it is applied to the air in the rear side interior 17, 17 'of the buffer cylinder part 4, 4' through 9 ', it blocks the pneumatic flow to the pneumatic tank 5 side, It is to prevent the shock absorbing effect of the buffer cylinder (4), (4 ').

5 and 6 show the structure of the rapid flow shutoff valve, and FIG. 5 shows a case where the rapid flow of pressure is blocked, and FIG. 6 shows a case where the pressure flow is not blocked.

Normally, as shown in FIG. 6, the internal components 11 of the rapid flow shutoff valves 6 and 6 'are positioned in the direction of the right inlet 14 of the valve by the elastic springs 12. The flow of pressure from the directional inlet 14 to the left inlet 15 of the valve or the flow of pressure from the left inlet 15 of the valve to the right inlet 14 of the valve is indicated by a hole 13 in the inner construction 11. ) And the free space 18 of the inner structure 11 and the outer structure 10 to pass smoothly.

Then, if there is a collision or collision while the vehicle is traveling, the shock is absorbed through the shock absorbing bumper 10, the piston rods 2, 2 ', and the pistons 9, 9' as shown in FIG. 4) When air is delivered to the compressed air inside the rear side 17, 17 'of the 4', the air rapidly flows through the rapid flow shutoff valves 6, 6 'and the pneumatic passages 8, Attempt to pass through (8 ') to the pneumatic tank (5).

At this time, a rapid pneumatic flow flows into the right inlet 14 of FIG. 5 and FIG. 6 of the rapid flow shutoff valves 6 and 6 ', and the flow of the pneumatic pressure is so rapid that the hole 13 of the inner structure 11 of the valve 13 The inner structure 11 is pushed toward the left inlet 15 side in the drawing, as shown in FIG. 11 and the free space 18 of the outer structure 10 is sealed to block the flow of pneumatic.

Thus, when the traveling body collides or collides while traveling, the collision of the traveling body of the present invention. The collision shock absorber The shock-absorbing portion of the shock absorbing portion of the metal flow blocking valves (6), (6 ') to block the flow of pneumatic cylinder 4 The air pressure in the rear side (17 ') and (17') of (4 ') is compressed without leakage, and the shock absorption bumper (1) and the piston rod (2), (2'), piston (9), (9) ') Through the shock absorbing cylinder (4), (4') to more reliably reduce the shock and shock absorber bumper (1) very slowly to approach the vehicle to protect the vehicle and the occupants.

And the pneumatic tank (5) is configured to supply while smoothly adjusting the strength of the pressure of the pneumatic pressure supplied to the buffer cylinder (4), (4 ') is very small or may be without.

As described above, the impact shock absorbing device of the traveling body of the present invention. The impact shock absorbing unit smoothly absorbs the impact when the traveling body has a collision or a collision while the traveling body does not impede the action of the shock absorbing bumper 1 according to the speed of the traveling body. The rapid flow shutoff valves 6 and 6 'smoothly pass when the pressure flow is below a certain intensity, and block sudden flows above a certain intensity to ensure the cushioning effect of the traveling body. To do it.

Claims (2)

Normally, the piston rods 2, 2 'and the pistons 9, 9' are operated according to the movement of the impact absorbing bumper 1 of the collision shock absorber. In the event of a collision, the shock absorbing bumper 1, the piston rods 2, 2 ', the pistons 9, 9' are transmitted to the shock absorbing cylinders 4, 4 '. Collision of the traveling body to mitigate The inner structure 11 is embedded inside the outer structure 10 of the valve so that the inner structure 11 acts according to the strength of the pressure flow, so that the free space 18 of the outer structure 10 and the inner structure 11. To open or close the valve so that the pressure flows smoothly when the pressure flows below a certain intensity, and shuts off the flow when the pressure flows above a certain intensity.