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Front fork

An axle and side tube technology, applied in the field of front forks, can solve problems such as difficulties

Inactive Publication Date: 2008-03-05
SHOWA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (2) Since the damping force generating device is installed inside the shock absorbing cylinder, the setting of the damping characteristic of the damping force generating device (the number of disc valves, plate thickness, etc.), must be disassembled and the shock absorbing cylinder must be removed from the axle. Bracket removal is difficult

Method used

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Embodiment Construction

[0014] As shown in FIGS. 1 to 4 , the front fork 10 is such that an outer tube (vehicle side tube) 11 on the vehicle body side is slidably fitted and upside down on an inner tube (axle side tube) 12 on the axle side. A suspension spring 13 is installed between 11 and 12, and a monotube shock absorber 14 is housed upright.

[0015] A bushing 15, an oil seal 16, and a dust-proof ring 17 that are in sliding contact with the outer periphery of the inner pipe 12 are embedded on the inner periphery of the lower end of the outer pipe 11; The bushing 18 of the peripheral sliding joint.

[0016] The outer tube 11 is supported on the vehicle body side by the upper bracket 19A and the lower bracket 19B; the lower end of the inner tube 12 is inserted and screwed on the axle bracket 20 through an O-ring 23 in a liquid-tight manner, and passes through the axle The axle hole 20A of the bracket 20 is connected to the axle.

[0017] The lower end of the damper cylinder 21 of the shock absorb...

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Abstract

A front fork is disclosed. The front fork includes an axle side tube slidably connected to a vehicle body side tube; an axle bracket attached to a lower end of the axle side tube; a damper cylinder extending up from a side of the lower end of the axle side tube, wherein a piston rod is inserted into the damper cylinder and connected to an upper end side of the vehicle body side tube; and an oil lock collar provided in a bottom portion side of the damper cylinder, and an oil lock piece is provided at a leading end side of the piston rod. Furthermore, a damping force generating apparatus is provided in the axle bracket, and an inner portion and an outer portion of the damper cylinder are communicated via the damping force generating apparatus.

Description

technical field [0001] The invention relates to a front fork. Background technique [0002] As the front fork, there is a front fork as described in (Japanese) Mikaihei 4-93533 (Patent Document 1), in which the axle side pipe is slidably inserted into the vehicle body side pipe, and the lower end of the axle side pipe is attached to the axle bracket. , and vertically install a shock absorber tube on the lower end side of the axle side pipe, the piston rod inserted into the shock absorber tube is supported on the upper end side of the vehicle body side tube, and an oil lock collar ( oil lock collar), an oil lock piece is provided on the top end side of the piston rod. In this front fork, a base valve (damping force generating device) is further provided inside the bottom side of the damper cylinder. [0003] The front fork described in Patent Document 1 has the following problems. [0004] (1) Since not only the oil lock collar is installed inside the shock absorber, but a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62K21/02B62K25/08
CPCB62K25/08F16F9/49
Inventor 友永隆男村上阳亮竹花大贵
Owner SHOWA CORP
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