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hydraulic buffer

A hydraulic shock absorber and oil technology, applied in the field of hydraulic shock absorbers, can solve problems such as adverse effects on ride comfort, and achieve the effects of simplifying the structure, suppressing the increase in size, and reducing the number of parts

Active Publication Date: 2017-10-03
TEINKK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, there is a problem that ride quality and the like are adversely affected due to a large reaction force in the vicinity of the maximum compression degree.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Figure 2A is a sectional view of the hydraulic shock absorber 10 according to the first embodiment, Figure 2B yes Figure 2A The enlarged view of the part enclosed by the dotted line a in the square shown in , Figure 2C yes figure 1 The enlarged view of the part enclosed by the dotted line b in the square shown in . Among them, it shows Figure 2A ~ Figure 2C The hydraulic shock absorber 10 is shown in the no-load state where it is not compressed so that no load is generated.

[0054] Such as Figure 2A , Figure 2B , Figure 2C As shown, the hydraulic shock absorber 10 of this example includes a piston rod 11 . The upper portion of the piston rod 11 is held by a bearing of a vehicle or the like not shown in the figure, and the lower portion of the piston rod 11 is inserted into the cylinder 12 in the direction of the front end.

[0055] The cylinder 12 is accommodated in the outer cylinder 13 . An axle holding engaging portion 14 is attached to an outer lo...

Embodiment 2

[0087] Figure 6A is a sectional view of the hydraulic shock absorber 45 according to the second embodiment, Figure 6B yes Figure 6A The enlarged view of the part enclosed by the dotted line a in the square shown in , Figure 6C yes Figure 6B The enlarged view of the part enclosed by the dotted line b in the square shown in .

[0088] In addition, it shows Figure 6A ~ Figure 6C The hydraulic shock absorber 45 is shown in the no-load state where it is not compressed so that no load is generated.

[0089] Figure 7A , Figure 7B as well as Figure 7C is showing Figure 6A ~ Figure 6C The diagram of the operation state when the hydraulic shock absorber 45 according to the second embodiment is compressed and a load starts to be applied is shown, respectively showing the Figure 6A , Figure 6B as well as Figure 6C The state of the corresponding part.

[0090] Figure 8A , Figure 8B as well as Figure 8C It is a diagram showing the operation state when the comp...

Embodiment 3

[0123] Figure 10A It is a sectional view of the hydraulic shock absorber 60 of the third embodiment combining the structures of the first embodiment and the second embodiment, Figure 10B yes Figure 10A The enlarged view of the part enclosed by the dotted line a in the square shown in , Figure 10C yes Figure 10B An enlarged view of the part enclosed by the dotted line b in the rectangle shown in .

[0124] Embodiment 3 is configured to include the second compression-side port 32 of Embodiment 1 and the third valve 51 of Embodiment 2. By combining Embodiment 1 and Embodiment 2, the first valve 24 closes the first compression-side port. when the role.

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PUM

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Abstract

The invention provides a position- and velocity-dependent hydraulic buffer (10). The hydraulic shock absorber (10) has: a piston valve (22) fixed to the front end of the piston rod (11); a base valve (27); and a storage chamber (15). The base valve (27) has a compression side port (31). A first coil spring (28) is provided between the first valve (24) and the base valve (27), and a second coil spring (23) is provided between the first valve (24) and the piston valve (22) . The compression side port (31) is closed by the first valve (24) near the maximum degree of compression, and therefore, the flow rate of the oil toward the storage chamber (15) is reduced. The second valve (33) passing through the center of the first valve (24) and the base valve (27) controls the flow rate of the oil toward the storage chamber (15) at a pressure equal to or higher than the predetermined pressure of the oil chamber (21b). Adjustment.

Description

technical field [0001] This invention relates to hydraulic shock absorbers used in cars, trucks, motorcycles and the like. Background technique [0002] Conventionally, in hydraulic shock absorbers used in vehicles such as cars, trucks, and motorcycles, bump stop rubber or the like is generally used in order to avoid contact between components during compression. [0003] For example, a shock absorber is disclosed in which at least the bumper rubber or the bumper stopper absorbs the impact on the shock absorber caused by the contact of the shock absorber rubber with the bumper stopper when the shock absorber is maximally compressed. Concave-convex is provided on one side of the mutually abutting surfaces. (For example, refer to Patent Document 1, figure 1 . ) [0004] figure 1 It is a figure which shows an example of the conventional structure which used the above-mentioned cushion rubber for a hydraulic shock absorber. first, figure 1 The hydraulic shock absorber sho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/48F16F9/58
CPCF16F9/49F16F9/5126F16F9/585F16F9/062F16F9/58B60G15/061B60G17/08B60G2202/30B60G2206/40F16F13/007
Inventor 渡边宏尚
Owner TEINKK