KR200170926Y1 - Damping shock absorber of a vehicle - Google Patents

Abstract

To increase the garage on unpaved roads while driving, to prevent collision with the road surface and damage to the bottom surface of the car body, and to improve driving stability and ride comfort on unpaved roads. The chamber member formed a space of

A lower piston rod connected to the suspension while being assembled with an elastic member at the lower end of the chamber member,

An upper piston rod connected to the vehicle body while being assembled with an elastic member on an upper end of the chamber member;

It is to provide a damping shock absorber for a vehicle consisting of a configuration including a secondary storage member connected to the circulating flow of the oil when pressurized by an external force in the chamber member.

Description

Automotive Damping Shock Absorbers

The present invention relates to a damping shock absorber for a vehicle, and more particularly, to protect the vehicle body by preventing a collision with a road surface caused by severe bouncing by raising a garage on an unpaved road while driving, and further improving driving stability, adjustment stability, and ride comfort. It relates to a damping shock absorber for a vehicle.

3 is a diagram illustrating a shock absorber according to the prior art, and the symbol 2 denotes a shock absorber.

The shock absorber 2 attenuates the vibration or shock received from the road surface when the oil 6 filled in the cylinder 4 moves through the orifice 10 formed in the piston 8 which is operated to move up and down. Towards the stability of the straight line.

The piston (8) forms a connecting portion (16) via a rubber bush (14) on a piston rod (12) formed integrally connected for installation on the vehicle body side, and the cylinder (4) for connection to a suspension device. The connection part 18 via the rubber bush 14 is formed in the lower end of the bottom part.

As described above, vibration is attenuated by the flow amount of oil passing through the orifice 10 formed in the piston 8 of the shock absorber 2 to achieve a ride comfort and adjustment stability.

As described above, the prior art reduces the vibration or shock transmitted from the road surface as oil passes through the orifice during the lifting operation of the piston, thereby improving ride comfort or adjustment safety, but bounces when driving on uneven roads such as uneven roads. Due to this severe problem, the bottom of the vehicle body collides with the protruding portion of the ground.

The object of the present invention proposed to solve the problems of the prior art as described above is to provide a vehicle damping shock absorber that prevents damage to the bottom surface of the vehicle body by collision with the road surface by severe bouncing by raising the garage on the unpaved road during driving It is.

Another object is to provide a damping shock absorber for vehicles to improve driving stability, steering stability and ride comfort on off-road.

The present invention for realizing this, and the chamber member formed a plurality of spaces to be attenuated against vibration or shock during the flow of oil,

A lower piston rod connected to the suspension while being assembled with an elastic member at the lower end of the chamber member,

An upper piston rod connected to the vehicle body while being assembled with an elastic member on an upper end of the chamber member;

It is to provide a damping shock absorber for a vehicle comprising a secondary storage member connected to the circulating flow of the oil when pressurized by vibration or shock in the chamber member.

The chamber member has a cylindrical shape and has a lower chamber having a first and a second chamber on both sides of the piston of the lower piston rod, and an elastic member holding the piston on each of the first and second chambers, respectively;

An upper chamber formed with a protrusion to restrict the lowering caused by the elastic force of the elastic member which is supported by the upper piston rod penetrating the other side of the lower chamber;

A main oil chamber in which the upper piston rod is pressurized between the upper chamber and the lower chamber,

An oil damping shock absorber for a vehicle is formed by forming an auxiliary oil chamber in which oil of the main oil chamber passes slowly through a plurality of holes and is stored and moved.

The above hole is to provide a damping shock absorber for a vehicle formed to attenuate the flow of oil by drilling a plurality of blocking plates between the main oil chamber and the auxiliary oil chamber.

The lower piston rod is integrally formed on the piston rod installed by the connecting portion via the rubber bush in the suspension device and is damped when oil flows between the first and second chambers by an external force transmitted to the lower chamber. To provide a vehicle damping shock absorber formed by forming a plurality of orifices in the.

The upper piston rod has a flange which is installed by the connecting portion via the rubber bush on the side of the vehicle body and the piston rod penetrating the upper chamber is hardened by the elastic member, and the piston is spaced apart from the flange at regular intervals. It is to provide a vehicle damping shock absorber formed by.

The auxiliary storage member is in communication with the auxiliary oil tank and the hose connected to return the oil,

An auxiliary tank installed to store oil recycled through the hose,

It is to provide a damping shock absorber for the vehicle formed by installing a check valve that is opened by the suction pressure when the upper piston rod is raised at the front end of the supply port for communicating the main oil chamber between the auxiliary tank.

1 is a view showing a damping shock absorber according to the present invention.

2 is a view showing the operation of the damping shock absorber according to the present invention.

3 illustrates a shock absorber according to the prior art.

<Explanation of symbols for the main parts of the drawings>

22: chamber member 24: lower piston rod 26: upper piston rod 28: auxiliary storage member

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention will be described in more detail.

1 is a diagram showing a damping shock absorber according to the present invention, the reference numeral 20 denotes a damping shock absorber.

The damping shock absorber 20 is composed of a chamber member 22, a lower piston rod 24, an upper piston rod 26, and an auxiliary storage member 28.

The chamber member 22 is formed by forming a plurality of spaces in the longitudinal direction so that the damping effect on the external force during the flow of oil is made.

The chamber member 22 has a cylindrical shape and an elastic member for supporting the piston 30 on the first and second chambers 32 and 34 formed on both sides of the piston 30 of the lower piston rod 24. 36 is interposed in the lower chamber 38, respectively.

In addition, the upper chamber 40, which is the other side of the lower chamber 38, interposes the upper piston rod 26 installed therethrough while being firmly interposed between the elastic members 42 and protrudes on the inner circumferential surface to limit the lowering due to the elastic force. ).

In addition, a main oil chamber 46 through which the upper piston rod 26 is pressurized between the upper chamber 40 and the lower chamber 38, and the oil in the main oil chamber 46 have a plurality of holes 48. It is made to form an auxiliary oil chamber 50 that is gently passed through and stored.

The hole 48 is formed in a plurality of holes formed in the blocking plate 52 between the main oil chamber 46 and the auxiliary oil chamber 50 to function as a damping action during the flow of oil.

The lower piston rod 24 is attached to the suspension while being assembled with the elastic member 36 at the lower end of the chamber member 22.

The lower piston rod 24 is formed integrally with the piston rod 56 installed by the connecting portion 54 via the rubber bush in the suspension device, and oil is prevented by vibration or shock transmitted to the lower chamber 38. A plurality of orifices 58 are formed in the piston 30 so as to dampen when flowing between the first and second chambers 32 and 34.

The upper piston rod 56 is connected to the vehicle body side while being assembled with the elastic member 42 on the upper end of the chamber member 22.

The upper piston rod 56 is installed by the connecting portion 60 via the rubber bush on the vehicle body side, so that the elastic force by the elastic member 42 acts on the piston rod 62 passing through the upper chamber 40. The flange 64 is formed, and the piston 66 is formed in the lower end spaced apart from this flange 64 by a fixed space | interval.

The auxiliary storage member 28 is installed in the chamber member 22 so as to allow circulating flow of oil when pressurized by vibration or shock.

The auxiliary storage member 28 is installed in the auxiliary tank 70 so that the oil is recycled through the hose 68 connected in communication so that the oil is returned by the pressure delivered in the auxiliary oil chamber 50 and the storage is made. have.

A check valve 74 is opened at the tip of the supply port 72 for communicating between the main oil chambers 46 from the auxiliary tank 70 by an upward suction pressure of the upper piston rod 26.

Referring to Figure 2 illustrates the operation of the present invention made as described above, the vehicle body is pitching (punching) and bouncing (bouncing) when the vehicle enters and runs on a road with severe unevenness.

At this time, the upper piston rod 26 connected to the vehicle body at the time of rebounce after bounce of the vehicle body is raised while suppressing the elastic member 42 of the upper chamber 40, and the piston 66 is also according to the height H at the normal height H. Will rise by ').

The suction pressure is generated in the main oil chamber 46 until the piston 66 ascends the main oil chamber 46 and is caught by the projection 44.

As the check valve 74 of the supply port 72 is opened by the suction pressure generated in the main oil chamber 46, the oil stored in the auxiliary tank 70 of the storage auxiliary member 28 is stored in the main oil chamber ( 46) flows into.

The amount of oil introduced into the main oil chamber 46 through the check valve 74 through the check valve 74 is not reversed due to the cross-sectional area with the hole 48, and the oil flows toward the auxiliary tank 70. The circulation of is made.

As described above, the main oil chamber 46 is filled with the oil by the height H­H ', thereby increasing.

When the vehicle body is bounced, the check valve 74 is closed by the oil pressure generated while the suction pressure is canceled in the main oil chamber 46 by the piston 66.

Therefore, the oil pressure applied to the main oil chamber 46 flows through the hole 48 to the auxiliary oil chamber 50, and the oil passes gently by the hole 48 due to the difference in cross-sectional area with the main oil chamber 46. As it fills in the auxiliary oil chamber 50 at a slow speed, the storage is made while reaching the auxiliary tank 70 through the hose 68.

As described above, at the same time as the opening of the check valve 74 due to the suction pressure generated by the piston 66 rising by rebounce again while the oil in the main oil chamber 46 moves to the auxiliary oil chamber 50. The oil will be reflowed.

Therefore, when the uneven road surface is severely roughened, the damping force is increased by the vibration or shock transmitted from the road surface by the damping shock absorber 20, resulting in the height of the garage being kept high.

In addition, when entering a road having a good road surface on an unpaved road, bouncing and re-banging are weakened so that the oil in the main oil chamber 46 is not suddenly pressurized, and the main oil chamber 46 gradually increases with the elastic force of the elastic member 42. Pressurizes the oil in the tank.

Accordingly, the oil in the main oil chamber 46 flows into the auxiliary oil chamber 50 through the hole 48 at a gentle flow rate.

The oil flowing into the auxiliary oil chamber 50 flows through the hose 68 and is stored in the auxiliary tank 70.

As described above, when the vehicle is driven in a stable state, the amount of oil circulating in the main oil chamber 46, the auxiliary oil chamber 50, and the auxiliary tank 70 is minimized.

On the other hand, the lower piston rod 24 assembled to the lower chamber 34 of the chamber member 22 is firmly supported by the elastic member 36 interposed in the first and second chambers 32 and 34. Vibration or shock received from the road surface is attenuated, and the orifice 58 is also formed in the piston 30 to assist the damping action by the flow of oil.

The lower piston rod 24, like the upper piston rod (), does not have a large lifting width but damps vibration or shock.

The present invention is designed to protect the vehicle body by preventing the bumps from hitting the protruding portion of the road surface by raising the garage when the road condition is bad, such as unpaved roads.

In addition, it is designed to improve driving stability, adjustment stability and ride comfort by keeping the body low when driving at a constant speed on roads with good road conditions.

Claims (5)

A chamber member 22 which forms a plurality of spaces so that damping of external force is made when the oil flows, A lower piston rod 24 connected to the suspension while being assembled with the elastic member 36 at the lower end of the chamber member 22, An upper piston rod 26 connected to the vehicle body side while being assembled with an elastic member 42 on the upper end of the chamber member 22; Damping shock absorber for the vehicle, characterized in that consisting of a configuration including a secondary storage member 28 is connected to the circulating flow of the oil when pressurized by an external force in the chamber member (22). The chamber member 22 is cylindrical, and forms the first and second chambers 32 and 34 on both sides of the piston 30 of the lower piston rod 24, respectively. A lower chamber 38 each having an elastic member 36 for holding the piston 30 on the 34; An upper chamber 40 having protrusions 44 formed to restrict the lowering of the upper piston rod 26 penetrating to the other side of the lower chamber 38 by the elastic force of the elastic member 42; A main oil chamber 46 in which the upper piston rod 26 is pressurized between the upper chamber 40 and the lower chamber 38, A damping shock absorber for a vehicle formed by forming an auxiliary oil chamber (50) in which oil of the main oil chamber (46) passes slowly through a plurality of holes (48). The method of claim 1, wherein the lower piston rod 24 is formed integrally with the piston rod 56 installed by the connecting portion 54 via the rubber bushing on the suspension device, and oil by external force transmitted to the lower chamber 38 A damping shock absorber for a vehicle formed by forming a plurality of orifices (58) in the piston (30) so as to dampen when flowing between the first and second chambers (32, 34). The piston rod 62 penetrating the upper chamber 40 by the elastic member 42 while the upper piston rod 26 is installed by the connecting portion 60 via the rubber bush on the vehicle body side. A damping shock absorber for a vehicle formed by forming a flange 64 and a piston 66 at a lower end spaced apart from the flange 64 at regular intervals. The method of claim 1, wherein the auxiliary storage member 28 is in communication with the auxiliary oil chamber 50, the hose 68 connected to return the oil, An auxiliary tank 70 connected to and installed to allow storage of oil recycled through the hose 68; Vehicle damping provided with a check valve 74 which is opened by an upward suction of the upper piston rod 26 at the tip of the supply port 72 communicating the main oil chamber 46 from the auxiliary tank 70. 쇽 Business Over.