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Faurecia kunststoffe automobil

A spring fork, bicycle technology, applied in the field of spring fork, can solve the problems of unpleasant, ineffective driving position, bad seat, etc., and achieve the effect of strong damping effect

Inactive Publication Date: 2011-08-03
GUSTAV MAGENWIRTH GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the result of this is that the spring fork itself continues to rise gradually during a small movement, so that in this case there is an unpleasant and ineffective driving position and a change, especially when driving uphill. bad seat

Method used

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  • Faurecia kunststoffe automobil
  • Faurecia kunststoffe automobil
  • Faurecia kunststoffe automobil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Figures 1 to 3 shows damping structures 1 to 1 b which have a single-piston damper with a piston 3 guided in a cylinder 2 . The black arrow PF1 marks the movement or oil flow of the stretching process (traction phase), while the white arrow PF2 marks the movement or oil flow of the hydraulic oil 21 during the compression process (compression phase).

[0039] A hydraulic circuit 4 is connected to the cylinder 2, and the hydraulic circuit is figure 1 There is a traction stage damping device 5, a compression stage damping device 6 and a blocking device 7 connected in series with the compression stage damping device 6. The traction phase damping device 5 and the compression phase damping device 6 respectively comprise a check valve 8 and a throttle valve 9, wherein the throttle valve 9 of the traction phase damping device 5 is configured to be adjustable. The damping device 6 in the compression stage can also be adjustable as required.

[0040] Connected in series to th...

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PUM

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Abstract

The invention relates to a spring fork for bicycles, with a suspension system and a hydraulic damping system. A compression stage damping system is provided for a spring deflection process and a traction stage damping system is provided for a rebound process. At least one piston is provided, which is located in the cylinder, and at least one connecting passage is provided, which connects the cylinder spaces located on both sides of the piston and is intended for the overflow of hydraulic medium. The compression stage damping system which is activated during the spring deflection process can be blocked by closing the connecting passage. At least with the compression stage damping system blocked, a bypass passage which has a reduced cross section in comparison to the connecting passage is opened. The connecting passage and the bypass passage are arranged in the piston and can be alternatively opened and closed. A closing element is provided at the connecting passage for a partial closing of the connecting passage to a cross-section equivalent to the bypass passage. As a result, the strong damping effect is largely maintained, in particular during the rocking peddling action, but, on the other hand, automatic return of the fork into its initial position (sag position) is made possible.

Description

technical field [0001] The invention relates to a spring fork for a bicycle. Background technique [0002] The so-called block adjustment produces an extremely high damping effect and is thus intended to prevent a strong insertion of the frame and pivoting of the spring fork during jolts, especially at the onset of inclines. [0003] For this purpose, the compression phase damping device is blocked, so that no compression is actually possible. However, the result of this is that the spring fork itself continues to rise gradually during a small movement, so that in this case there is an unpleasant and ineffective driving position and a change, especially when driving uphill. bad seat. Contents of the invention [0004] The object of the present invention is to provide a spring fork of the type mentioned at the outset, by means of which the above-mentioned disadvantages are avoided, wherein in particular unfavorable changes in the position of the spring fork or the vehicle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/46B62K25/08
CPCB62K25/08F16F9/467F16F9/56
Inventor R·金斯特勒D·吕德
Owner GUSTAV MAGENWIRTH GMBH & CO KG