JP3159856U - Vehicle damper - Google Patents

Abstract

An object of the present invention is to provide a vehicle damper that can be adjusted to have a lower limit for the altitude of the vehicle chassis and a buffering force for avoiding vibrations and that can be easily adjusted. A vehicle damper includes a fixed shaft tube 20 and a movable shaft rod 21 extending in the axial direction into the fixed shaft tube 20 and capable of reciprocating, and an adjustment ring 40 having an inner thread is a fixed shaft. The outer side of the tube 20 is coupled to the outside of the fixed shaft tube 20, the compression spring 50 is connected between the adjustment ring 40 and the chassis joint structure 31, and the scale 23 is installed on the outer wall of the fixed shaft tube 20. The lower limit unit 60 is installed in the fixed shaft tube 20. [Selection] Figure 3

Description

  The present invention relates to a damper for a vehicle, and more particularly to a damper for a vehicle having features such as an altitude of a vehicle chassis and a buffering force for avoiding vibrations that can be adjusted to have a lower limit and can be easily adjusted.

As shown in FIGS. 1 and 2, the conventional vehicle damper includes a fixed shaft tube 10 and a movable shaft rod 11.
The movable shaft 11 is installed through the fixed shaft tube 10 and can be reciprocated in the axial direction.
One end of the fixed shaft tube 10 is connected to the chassis joint structure 12 so as to be connected and fixed to the chassis of the vehicle.
One end of the movable shaft rod 11 is connected to the wheel cantilever unit 13.
On the outer surface of the movable shaft 11, a groove tank is installed in an annular shape, and is thereby coupled to the annular component 14.
A compression spring 15 is installed between the annular component 14 and the chassis joint structure 12.
In order to meet the need to adjust the vehicle chassis to a low level, adjusting means is implemented in the above-described damper.
The adjusting means described above opens a new groove tank at the lower end of the movable shaft 11 and moves the annular part 14 into the new groove tank, thereby moving the compression spring 15 downward, and the chassis joint structure 12 and The altitude of the vehicle chassis is lowered.

However, the above-described damper has the following drawbacks.
Since there is no function to limit the lower limit adjustment position, the operator tends to adjust to an inappropriately low position, which causes the chassis to be adjusted too low, adversely affecting safety.
Although a new groove tank can be opened to the lower end, the new groove tank cannot be opened to the higher end because it is shielded by the compression spring 15.
Therefore, although it is possible to adjust the chassis downward, it is difficult to adjust upward.
Therefore, even if it is going to change the buffering force for adjusting the elasticity of a compression spring and avoiding a vibration, the realization is difficult.
When opening a new groove tank, accurate control of the position is not easy, and if the adjustments of the left and right wheel dampers do not match, there is a problem that the chassis is distorted.
Since the opening of the groove tank is a destructive means, the structural strength of the movable shaft rod 11 may be inadvertently damaged and may cause a safety problem.
The engineer adjusts the damper in a situation where the damper is connected between the vehicle chassis and the wheel, but the operation is not easy.

  The present invention has been made in view of the above-described drawbacks of conventional vehicle dampers.

  Problems to be solved by the present invention are that adjustment operation is not easy, accurate control in altitude adjustment is difficult, minimum safety altitude is not considered, and buffering force adjustment to avoid vibration etc. is not possible It is an object of the present invention to provide a vehicle damper that can solve the drawbacks of conventional dampers.

In order to solve the above problems, the present invention provides the following vehicle damper.
A first device of the present application is a vehicle damper, which is coupled to a fixed shaft tube, a movable shaft rod extending in the axial direction from the fixed shaft tube and capable of reciprocating, and the fixed shaft tube, An adjustment ring that moves along a fixed axis tube, and a spring that is connected between the adjustment ring and the chassis joint structure, the fixed axis tube including a lower limit limiting unit, and the adjustment ring When the vehicle is moved to a minimum limit position, the vehicle damper is stopped by the lower limit unit.

  According to a second device of the present application, the lower limit limiting unit includes an annular tub installed on an outer wall of the fixed shaft tube, a low-degree position-limited ring coupled to the fixed shaft tube, and provided at a position facing the annular tub. The vehicle damper according to the first aspect of the present invention, further comprising: a position limiting unit that is installed in the low-level position limiting ring and is capable of elastic reciprocating movement and is engaged and controlled in the annular tank. .

  According to a third aspect of the present application, the annular tank further includes a concave tank, and a slope connected between the concave tank and the tank bottom of the annular tank, and the position limiting unit is configured by the guide of the slope, The vehicle damper according to the second aspect of the present invention, which is controlled by being engaged with the concave tank.

  According to a fourth aspect of the present application, the position limiting unit includes a ball that is placed in a hole provided in a radial direction of the low-level position limiting ring, a spring that presses the ball, and a fixing component that localizes the spring. The vehicle damper according to the second aspect of the present invention, comprising:

  The fifth device of the present application is characterized in that the adjustment ring is coupled with an outer thread of the fixed shaft tube by an inner thread, and an outer wall of the fixed shaft tube has a scale arranged in the axial direction. The vehicle damper according to the first aspect of the invention.

The damper of the vehicle of the present invention can change the height of the compression spring by rotating the adjusting ring, thus changing the height of the vehicle chassis, and the operator can adjust the vehicle chassis by rotating the adjusting ring. You can also The adjustment ring and the fixed shaft tube are connected by a screw thread, so that the adjustment ring can be adjusted steplessly, achieving stepless adjustment of the vehicle chassis height and modification of the compression spring elasticity, buffer vibration The purpose of adjusting the avoidance effect can be achieved.
The damper of the present invention has a low position adjustment limited function, so that it is possible for the operator to avoid setting beyond the safe low point position, the minimum height of the vehicle chassis is specified, and safety and stability of the damper structure are stabilized. Sex can be maintained.
The adjusting means of the damper of the present invention does not destroy the structural strength.
Since the scale can provide a reference for the operator to adjust the chassis height, there is no fear that the dampers of the left and right wheels are adjusted unbalanced, and the stability of the vehicle chassis can be maintained.

It is a top view of the conventional damper. It is a plane schematic diagram which shows the adjustment method of the conventional damper. It is a three-dimensional exploded view of the present invention damper. It is a combination external view of this invention damper. It is a combination top view of this invention damper. It is a combination top view (1) which shows the adjustment system of this invention damper. It is a combination top view (2) which shows the adjustment system of this invention damper. It is a combination longitudinal cross-sectional view of the lower limit limiting unit of the damper of the present invention. It is a combination cross-sectional view of the lower limit unit of the damper of the present invention.

The best mode for carrying out the present invention will be described below in detail with reference to the drawings and specific embodiments.
It should be noted here that the various components in the embodiments are drawn based on the proportionality, size, deformation amount, or movement amount of the description, and not based on the actual situation.

  As shown in FIGS. 3 to 6, the damper of the vehicle of the present invention includes a fixed shaft tube 20 and a movable shaft bar 21.

The movable shaft 21 is installed extending in the axial direction on the fixed shaft tube 20 and can be reciprocated.
The bottom end of the fixed shaft tube 20 is connected to the wheel cantilever unit 30, and the apex end of the movable shaft bar 21 is connected to the chassis joint structure 31, thus connecting and fixing to the chassis of the vehicle.
The fixed shaft tube 20 has an outer thread, and the adjustment ring 40 and the localization ring 45 having an inner thread are coupled to the fixed shaft tube 20.

The rotation adjusting ring 40 moves along the fixed shaft tube 20 and modifies the relative position with the fixed shaft tube 20.
The adjustment ring 40 is localized at a predetermined position by the localization ring 45, and there is no fear of arbitrary movement.
The apex surface of the adjustment ring 40 is provided with a spring localization portion 41, and one end of the compression spring 50 is fitted and connected thereto.
The opposite end of the compression spring 50 is fitted and connected to the chassis joint structure 31.
A buffering function for avoiding vibration is achieved by expansion and contraction and elastic motion of the fixed shaft tube 20, the movable shaft rod 21, and the compression spring 50.

As shown in FIGS. 5 to 7, the rotation adjusting ring 40 modifies the height of the position of the compression spring 50, and thus modifies the height of the chassis joint structure 31 and the vehicle chassis.
When a phenomenon in which the elasticity is weakened is seen in the compression spring 50, the adjustment ring 40 can be turned upward to adjust the elasticity of the compression spring 50, so that the buffering force for avoiding vibration is adjusted. The effect to do.
The outer wall of the fixed shaft tube 20 is provided with a scale 23 installed in the axial direction, so that the operator can adjust the position of the adjustment ring 40 by moving the position of the adjustment ring 40.

As shown in FIGS. 3, 8, and 9, the damper of the present invention further includes a lower limit unit 60.
The lower limit limiting unit 60 is installed in the annular tank 61 installed at a predetermined position at the lower end of the fixed shaft tube 20, the low position limiting ring 62 coupled to the fixed shaft tube 20 by the inner screw thread, and the low position limiting ring 62 in the radial direction. In addition, a position limiting unit 63 that performs elastic reciprocation is provided.
The annular tank 61 further includes an engagement control structure 611.

The engagement control structure 611 includes a concave tank 612 and a slope 613 connected between the concave tank 612 and the annular tank 61.
The position limiting unit 63 includes a hole 621 installed in the low position limiting ring 62 in the radial direction, a ball 622 stuffed and installed in the hole 621, a spring 623 that presses the ball 622, and a fixing component 624 that positions the spring 623. .
The low-degree position limiting ring 62 rotates in accordance with the outer thread of the fixed shaft tube 20, moves in the direction of the annular tank 61, and is pressed against the outer wall of the fixed shaft tube 20.
As a result, the ball 622 enters the hole 621, and there is no obstacle to the rotation of the low position limit ring 62.
When reaching the annular tank 61, the spring 623 pushes the ball 622 with elasticity, and a part of the ball 622 protrudes from the hole 621 and enters the annular tank 61.
The ball 622 slides along the annular tank 61 according to the rotation of the low-degree position limiting ring 62 and enters the concave tank 612 by the guide of the slope 613.
The concave tank 612 controls the ball 622, so that the low-degree position limiting ring 62 cannot be rotated any further and is positioned at the position where the annular tank 61 is located.

The position of the above-described annular tank 61 is determined based on the minimum level for adjusting the damper.
That is, when the altitude of the adjustment ring 40 is adjusted downward and comes into contact with the low-level position limiting ring 62, it indicates that the minimum position has been reached.
This restriction defines the minimum height of the chassis, thereby maintaining the stability and safety of the damper structure.

  The names and contents of the present invention described above are only used for explaining the technical contents of the present invention, and do not limit the present invention. Equivalent applications based on the spirit of the present invention, conversion of parts (structure), replacement, increase / decrease in quantity are all included in the protection scope of the present invention.

  The present invention has the novelty that is a requirement of the utility model, has sufficient progress compared to the conventional similar products, has high practicality, meets the needs of society, and has a very high industrial utility value .

20 Fixed shaft tube 21 Movable shaft rod 23 Scale 30 Wheel cantilever unit 31 Chassis joint structure 40 Adjustment ring 41 Spring positioning part 45 Positioning ring 50 Compression spring 60 Lower limit limiting unit 61 Annular tank 611 Engagement control structure 612 Concave tank 613 Slope 62 Low Degree position limiting ring 621 Hole 622 Ball 623 Spring 624 Fixed part 63 Position limiting unit

Claims (5)

A vehicle damper,
A fixed shaft tube;
A movable shaft rod extending in the axial direction from the fixed shaft tube and capable of reciprocating;
An adjustment ring coupled to the fixed shaft tube and moving along the fixed shaft tube;
A spring connected between the adjustment ring and the chassis joint structure,
The vehicle damper, wherein the fixed shaft tube includes a lower limit unit, and is stopped by the lower limit unit when the adjustment ring moves to a minimum position. The lower limit unit is:
An annular tank installed on the outer wall of the fixed shaft tube;
A low position limit ring that is coupled to the fixed shaft pipe and is provided at a position opposite to the annular tank, and is installed in the low position limit ring, and is capable of elastic reciprocation, and engages in the annular tank. A position limiting unit to be controlled,
The vehicle damper according to claim 1. The annular tank further includes a concave tank, and a slope connected between the concave tank and the tank bottom of the annular tank,
The position limiting unit is controlled by being engaged and engaged with the recessed tank by the guide of the slope.
The vehicle damper according to claim 2. The position limiting unit is:
A ball to be placed in a hole provided in the radial direction of the low-degree position-limited ring;
A spring that presses the ball, and a fixing component that localizes the spring.
The vehicle damper according to claim 2. The adjusting ring is coupled with an outer thread of the fixed shaft tube by an inner thread;
The outer wall of the fixed shaft tube is provided with a scale arranged in the axial direction,
The vehicle damper according to claim 1.

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