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Bicycle hub ratchet wheel structure

A technology for bicycles and hubs, applied in the direction of hubs, vehicle parts, one-way clutches, etc., can solve the problems of increasing the size and weight of the hubs, affecting the structural strength of the ratchet ring, and achieve the increase of the axial size and transmission. Power, the effect of increasing reaction speed

Inactive Publication Date: 2015-09-16
SUZHOU AORAN COMMODITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the former is that it will relatively increase the size and weight of the hub, wh

Method used

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  • Bicycle hub ratchet wheel structure
  • Bicycle hub ratchet wheel structure
  • Bicycle hub ratchet wheel structure

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] like figure 1 As shown, a bicycle hub ratchet structure of the present invention includes: a hub 1 , a ratchet ring 2 , a sleeve 3 , and a ratchet pawl group 4 .

[0029] like figure 2 As shown, the hub 1 is provided with a first through hole 101 therein. An inner thread 102 is provided on the inner wall of the first through hole 101 .

[0030] like image 3 As shown, the ratchet ring 2 is connected to the hub 1 , the ratchet ring 2 is provided with a second through hole 202 , and the second through hole 202 is provided with a plurality of ratchet teeth 203 . The outer wall of the ratchet ring 2 is provided with an external thread 201, the external thread 201 and the internal thread 102 are correspondingly arranged, and the hub 1 and the ratchet ring 2 pass through the internal thread 102 and the external thread 102. Thread 201 connection.

[0031] like Figure 4 As shown, the first end of the sleeve 3 is provided with a boss 301 , and the boss 301 is provided wi...

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PUM

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Abstract

The invention discloses a bicycle hub ratchet wheel structure which comprises a hub, a ratchet ring, a sleeve and ratchet pawl groups, wherein the ratchet ring is connected with the hub; a boss is arranged at a first end of the sleeve; arc grooves and first embedded grooves are formed in the boss; each ratchet pawl group comprises a plurality of pawls and pawl springs arranged on the pawls in a clamping manner; first tooth parts, first tooth parts and second embedded grooves are arranged on and formed in the pawls; the pawls are arranged in the arc grooves; the pawl springs are clamped in the first embedded grooves and the second embedded grooves; and at least two ratchet pawl groups are arranged in the arc grooves and the first embedded grooves of the sleeve side by side, and are arranged in a staggered manner. The structure can realize an instant driving function on the premises that the volume and the weight of the hub are not increased and the structural strength of the ratchet ring is not affected.

Description

Technical field: [0001] The invention belongs to the technical field of bicycle accessories, in particular to a bicycle hub ratchet structure. Background technique: [0002] The hub ratchet structure is a transmission mechanism installed on the rear wheel of a bicycle. It uses a limiter to keep the ratchets in a normally closed state, and uses the protrusions of the ratchets and the damper holes to create a displacement relationship, that is, the bicycle pedal When pedaling in the forward direction, the gear disc drives the sleeve to rotate, and drives the hub to rotate accordingly, so that the wheel can rotate forward, and when the bicycle pedal is pedaled in the reverse direction, the sleeve and the hub produce idling to prevent the wheel from turning reversely . [0003] The hub ratchet structure used for bicycles in the prior art is to meet the requirements of instantaneous driving. One method is to increase the number of ratchet ring teeth and the number of ratchet cla...

Claims

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Application Information

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IPC IPC(8): B60B27/02F16D41/30
Inventor 付淑珍
Owner SUZHOU AORAN COMMODITY
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