KR200238698Y1 - Shock absorbing device in a car crash - Google Patents

Abstract

The present invention relates to a shock absorber for reducing the impact force in the collision of the front or rear of the vehicle.

According to the present invention, a bumper that is hollow, tough, airtight, lightweight, hollow, corrugated, and has a spring valve attached to the bottom like a tube. The buffer pads are interconnected with two fibrous connectors to allow the compressed air to circulate with each other. The compressed air is press-fitted to the front and rear bumper buffer pads by a small compressor to a predetermined pressure.

A large impact force generated when a vehicle having the front and rear bumper buffer pads attached to the front and rear bumpers collided by another vehicle instantaneously, and part of it is ejected to the outside of the buffer pad through a spring valve at the bottom of the buffer pad. The other part is distributed to the opposite shock absorber pad through the connecting pipe, and the impact force applied to the vehicle body and the human body is instantaneously reduced and absorbed instead of the compressed air which is a body, thereby reducing the injuries of the occupants in the vehicle. At the same time, it is characterized by reducing human injury.

Description

Shock absorbing device in a car crash

The present invention relates to a shock absorbing device in a car collision to effectively reduce the impact force applied to the human body and the vehicle body in the event of a vehicle collision, and more specifically, bumper attached to the front bumper and rear bumper of the vehicle during driving Inflate compressed air to the set pressure through the air supply line to the shock absorber pad to increase the volume of the shock absorber pad to increase the elasticity of the shock absorber pad, and attach an air cushion to the front and rear of the car. The present invention relates to a shock absorbing device in a vehicle collision for effectively reducing the impact force applied to the human body and the vehicle body during the front rear collision of the vehicle.

Since the structure of a conventional vehicle consists only of a solid bumper and a vehicle body whose front and rear parts cannot absorb an impact force, when a large impact force generated by a collision is applied, the vehicle body is destroyed and deformed. Throw it away. Such damage and deformation of plastic or steel not only cause fatal injury to the occupants, but also damage to the structure may cause serious injury and injury to the human body by hitting or stabbing the human body. Airbags in which compressed air is injected at the moment of collision of the vehicle protect the occupants' front chest and face area, but this is insufficient to protect the lower body of the human body such as hands, feet, and legs. There was a problem that the body is compressed and crushed to reduce or prevent the occupant from serious injury or death.

The present invention is to solve the above problems, the bumper buffer pads attached to the front and rear bumpers of the vehicle is hollow, tough and airtight, thin, lightweight, made of fiber material, pressurized air The pad is made elastic by pressure, and on the bottom, it is equipped with a spring valve that ejects compressed air inside the pad to the outside of the pad when the pressure is exceeded and an solenoid valve that stores or discharges the compressed air inside the front and rear pads. The air discharge pipe is branched.

The front and rear bumper buffer pads are connected to the small compressor by an air supply pipe, and the air supply pipe has a small pressure valve for preventing backflow of compressed air to the small compressor and the pressure of the compressed air inside the pad according to the set pressure. A pressure sensor for controlling the operation of the compressor and the operation stop is attached.

By attaching bumper buffer pads to the front and rear bumpers of the vehicle according to the present invention, in the event of a crash, the shock wave and impact energy of the shock absorbing pad at the impact part are instantaneously ejected to the outside of the shock absorbing pad through a spring valve, By dividing, mitigating and absorbing, the shock wave and impact energy are remarkably reduced, so that the impact force absorbs and dissipates a part of the impact force before the impact on the vehicle body and the human body.

1 is a side view of a vehicle with a shock absorber according to the present invention,

Figure 2 is a plan view of a vehicle with a shock absorber according to the present invention,

Figure 3 is an exploded perspective view of the shock absorber according to the design,

4 is an enlarged side view of the front bumper side of the shock absorber shown in FIG. 1;

5 is an enlarged view of FIG. 4;

6 and 7 is a diagram illustrating the operation of the shock absorber according to the invention,

Figure 8 is a plan view showing an example of the instrument panel for the operation of the shock absorber according to the invention,

9A to 9D are cross-sectional change state diagrams of the bumper buffer pads.

Explanation of symbols on the main parts of the drawings

DESCRIPTION OF SYMBOLS 1 Car 2, 3 Bumper 11, 12 Bumper buffer pad 20 Compressor 22a Compressor switch 22a Solenoid valve switch 21 Air supply pipe 31, 32 Connector 41, 42, 43 Check valve 50 Solenoid valve 51 : Pressure sensor 60: Rinse for fixing buffer pad 70: Rinse rod 80: Spring valve

The present invention for achieving the above object, in the device for mitigating the impact force during the front and rear collision of the vehicle; A bumper buffer pad attached to the front and rear bumpers of the vehicle and expandable by injection of compressed air; A compressor operable to press air into or extract air from the buffer pad; An air supply pipe for delivering air by the compressor to the bumper buffer pad, and a connection pipe for connecting the bumper buffer pad to the air; A check valve installed at each of the air supply pipe and the connection pipe to allow air to flow in only one direction; A pressure sensor installed at a discharge pipe branched from the air supply pipe and detecting an air pressure; A solenoid valve for selectively discharging air in the bumper buffer pad during parking; Rinsing for attaching the bumper buffer pads to the front and rear bumpers of the vehicle; In order to guide the expansion and contraction of the bumper buffer pad during the injection and discharge of air, a rinsing rod operable in a springing manner and mounted on the bumper buffer pad to instantly eject compressed air in the bumper buffer pad when the vehicle collides. According to the present invention, the compressor and the solenoid valve are operated in a car interior, and are provided with a solenoid valve switch, a compressor switch, and a pressure level lamp for this purpose. When described in detail on the basis of the accompanying drawings the configuration of the shock absorber during a vehicle collision according to the following.

1 and 2 show a front bumper buffer pad 11 attached to the front bumper 2 of the vehicle 1, a rear bumper buffer pad 12 attached to the rear bumper 3, and a plurality of the lower bumpers. The left connecting pipe 31 and the right connecting pipe 32, which are respectively fixed by the fixing band 4, are connected to each other to form a circulation air circulation channel of the compressed air inside the pads 11 and 12.

Figure 3 shows the front and rear buffer pads (11, 12) of the device are interconnected by left and right connecting pipes (31, 32) and attached to the front and rear bumpers (2, 3) by pad hangers (60), respectively. It is an exploded perspective view shown. An air supply pipe 21, an air discharge pipe 22, and a small compressor 20 are connected to the front bumper buffer pad 11. As shown in FIG. 3, the front and rear bumper buffer pads 11 and 12 are connected to each other. In the front, the protective plates (11a, 12a) are bonded by an adhesive, the back is the adhesive plates (11b, 12b) to the front and rear bumpers (2, 3) by fixing bolts (not shown), respectively The upper hook 60 is fixed to the front and rear bumpers by a pad hanger 90. As shown in FIGS. 4 and 5, the front and rear bumper buffer pads 11 and 12 are respectively fixed. When the compressed air is pressurized and expanded to increase the width of the bumper buffer pads 11 and 12, the hanger rod 70 is attracted by the expansion force, and the coil spring 71 is released, on the contrary, the front and rear bumpers. When the compressed air inside the buffer pads 11 and 12 is discharged to the outside, the hanger rod 70 is contracted by the water output of the coil spring 71, so that the front and the rear The buffer bumper pads 11 and 12 shrink and become narrow in width. Figs. 6 and 7 show the compressed air supply pipe 21 and the compressed air discharge pipe 22, and the check valves 41, 42 and 43 are shown. The pressure sensor 51, the compact compressor 20 and the solenoid valve 50 are shown.

Fig. 8 is a detailed view of the instrument panel, in which the solenoid valve switch 22a is opened and closed, the compressor switch 20a is activated, stopped, and the red indicator light (lack of filling of compressed air inside the buffer pad) 22b is displayed. It is composed of a back (completely filled with compressed air inside the buffer pad) 20b. The operation of the present invention configured as described above will be described. FIGS. 6 and 7 show the front and rear bumper buffer pads 11 and 12 and the left and right sides. 6 is an operation explanatory diagram when the right connecting pipes 31 and 32 are impacted, and FIG. 6 shows that when the front of the vehicle is impacted, a part of the shock wave and the impact energy 200a is first passed through the spring valve 80, At the same time as blowing out to the outside, a part of the front bumper buffer pad (11), through the connecting pipe 31 and the check valve 42 via the rear bumper buffer pad 12 on the opposite side, and then the connecting pipe (32) Through this, the reduced reflected wave and the reflected energy 200b are returned to the front bumper buffer pad 11. FIG. 7 shows the shock wave when the rear of the car is hit. A part of the energetic energy 200a is first blown out through the spring valve 80, and at the same time, a part of the other energy is connected through the connecting pipe 32 and the check valve 43 at the rear bumper buffer pad 12. After passing through the front bumper buffer pad 11, through the connecting pipe 42, the reduced shock wave and impact energy 200b are returned to the rear bumper buffer pad 12. FIGS. 9A to 9D show the front bumper. 9A shows a state in which the pad width W is changed due to expansion and contraction by the compressed air of the buffer pad 11, and FIG. 9A is a state in which the compressed air of the pad inside 11 is discharged through the solenoid valve 50. FIG. 9B is a state in which compressed air is press-fitted into the pad inner portion 11 through the compressed air supply pipe 21, FIG. 9C is a state of collision, and FIG. 9C is a collision wave and collision energy 200a. The ejection from 80 and the classification into the connecting pipes 31 and 32 are described.

When the compressor switch 20a of the operation panel C of the front and rear bumper buffer pads 11 and 12 is set to automatic (OPR), the small compressor 20 starts to operate the compressed air. The front and rear bumper buffer pads 11 and 12 are pressed into the inside. Then the red indicator 22b lights up. This is an indication that the pressure of the compressed air inside the front and rear bumper buffer pads 11 and 12 is below the set pressure.

In this way, when the required time elapses and the green indicator 20b lights up, it indicates that the compressed air inside the front and rear bumper buffer pads 11 and 12 has reached the set pressure.

In this case, the pressure sensor 51 inside the air supply pipe 21 is operated, and the compressor 20 is automatically stopped. If the pressure of the compressed air inside the front and rear bumper buffer pads 11 and 12 falls below a predetermined pressure, the green indicator 20b is automatically switched to the red indicator 22b and the compressor ( 20) will be activated automatically. In this way, the inside of the front and rear bumper buffer pads 11 and 12 is always equipped with compressed air at a set pressure while the vehicle is being driven. On the other hand, the solenoid valve is used for long-term parking or parking after work. When the switch 22a is forcibly opened, the air in the front and rear bumper buffer pads 11 and 12 is discharged, and the rinsing rod 70 shown in FIG. 5 is contracted in the opposite direction to the arrow. Here, the protective plate (11a) is preferably made of a material that can use a pointed metal to prevent children or other people from making holes in the front and rear bumper buffer pad (11) (12).

As described above, according to the bumper buffer pad in front or rear of the vehicle according to the present invention, the front and rear bumpers are hollow, tough and airtight, fibrous, and make the top and bottom elastic, Attach the front and rear bumper buffer pads with spring valve for excess compressed air blowing. And this front buffer pad is connected to the small compressor by air supply pipe equipped with solenoid valve, pressure sensor, and check valve and pressurizes compressed air to the set pressure. In addition, an air discharge pipe with a solenoid valve for storing and discharging compressed air in the bumper buffer pad is branched from the air supply pipe.

As described above, when a vehicle having the front and rear bumper buffer pads attached to the front and rear bumpers collides with another vehicle, enormous impact energy is generated inside the shocked bumper buffer pad. Compressed air, which is a gas, is pressurized by the set pressure in each bumper buffer pad and in each connection pipe. However, when an unusually large impact energy, that is, ultra-high pressure compressed air is generated at the impact site, a part of it is first blown out through the spring valve to the outside of the shock absorbing pad, and a part of the bumper on the opposite side of the lower pressure at the moment is connected through the connecting pipe. The impact energy, which is transferred to the pads and propagated, is returned through the connector on the opposite side.

By absorbing the impact force, compressed air, which is a gas, is first received before the very large impact energy generated by the collision of the vehicle is directly applied to the vehicle components such as the bumper or the body or other steel aggregates. And by absorbing it in a way that is reduced by dispersing it with the opposite bumper buffer pads, the remaining weakened impact energy is applied to the body and the occupant to reduce the injuries of the occupants and at the same time reduce the rate of human injury. Can be improved.

Claims (2)

An apparatus for mitigating impact forces during front and rear vehicle crashes; Bumper buffer pads (11) (12) attached to the front and rear bumpers (2) and (3) of the vehicle and expandable by injection of compressed air; A compressor (20) operable to press air into the buffer pad (11) or to extract air from the buffer pad (11); An air supply pipe 21 for delivering air by the compressor 20 to the bumper buffer pad 11 and a connection pipe 31 for connecting the bumper buffer pads 11 and 12 to air; 32); Check valves (41) (42) (43) installed at each of the air supply pipe (21) and the connection pipe (31) (32) to allow air to flow in only one direction; A pressure sensor 51 installed at the discharge pipe 22 branched from the air supply pipe 21 to sense pressure; A solenoid valve 50 for selectively discharging air in the bumper buffer pads 11 and 12 during parking; A rinser (60) for attaching the bumper buffer pads (11) (12) to the front and rear bumpers (2) (3) of the vehicle; A rinsing rod (70) operable in a spring manner to guide expansion and contraction of the bumper buffer pads (11) (12) during the injection and discharge of air; The vehicle is mounted to the bumper buffer pads (11) and (12), characterized in that the vehicle comprises a spring valve 80 for instantaneously ejecting the compressed air in the bumper buffer pads (11) (12) Shock-absorbers in the event of a crash. According to claim 1, wherein the compressor 20 and the solenoid valve 22 is operated in a car interior, the solenoid valve switch 22a, the compressor switch 20a and the pressure level lamp (22b) (20b) for this purpose is Shock absorber during a vehicle crash, characterized in that provided.