Ratchet mechanism of bicycle
A ratchet mechanism and bicycle technology, applied in the field of machinery, can solve the problems of large shearing force at the connection of the pawl, affecting the service life, difficult to manufacture the pawl, etc., to avoid rigid collision, increase the bearing capacity, and make it easy to manufacture. Effect
Inactive Publication Date: 2018-12-18
天津市艾尔奇自行车股份有限公司
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Problems solved by technology
[0002] In the existing technology, bicycle ratchets are matched with traditional pawls. The pawls rely on centrifugal force to cooperate inside, and the pawls rely on external pressure to engage outside. However, no matter which one is rigid, it is easy to produce large The wear and tear of the ratchet is difficult to manufacture, and the connection of the ratchet will bear a large shear force, which will affect the service life
Method used
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[0025] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0026] like Figure 1-6 shown.
[0027] The working process of this example: a bicycle ratchet mechanism, including a ratchet 1 and a pawl 2, the ratchet 1 is cylindrical, the center of the ratchet 1 is provided with a through hole, and the side wall of the ratchet 1 through hole is provided with ratchet internal teeth 6, the ratchet 1 One side tooth surface of the ratchet internal tooth 6 is a slope, and the other side tooth surface is an arc surface. A circle of slideways 7 is arranged in the middle of the ratchet internal tooth 6, and threaded holes 3 are arranged around the ratchet 1.
[0028] The pawl 2 is a disc with the same thickness as the ratchet 1. A slide plate 9 is arranged in the middle of the side wall of the pawl 2. The thickness of the slide plate 9 is the same as the width of the slideway 7. The center of the pawl 2 is provided with a through hole....
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The invention provides a ratchet mechanism of a bicycle. The ratchet mechanism of the bicycle comprises a ratchet and a pawl. The ratchet is cylindrical, and a through hole is formed in the center ofthe ratchet. Ratchet inner teeth are arranged on the side wall of the through hole in the ratchet. The tooth face of one side of each ratchet inner tooth is an oblique face, and the tooth face of theother side of each ratchet inner tooth is an arc face. A circular slideway is arranged in the middle of each ratchet inner tooth. Threaded holes are formed in the periphery of the ratchet. The pawl isa disc, and the thickness of the pawl is the same as that of the ratchet. A sliding plate is arranged in the middle of the side wall of the pawl, and the thickness of the sliding plate is the same asthe width of the slideway. A through hole is formed in the center of the pawl. A pawl groove is formed around the pawl and is a rectangular groove. Springs are arranged in the pawl groove, and a pawlball is arranged at the position, close to an opening of the pawl groove, of each spring. The ratchet mechanism of the bicycle has the beneficial effects that rigid collision between the ratchet andthe pawl is avoided; and the working process is smoother, and the ratchet mechanism is not prone to damage and good in crush resistance.
Description
technical field [0001] The invention belongs to the mechanical field, in particular to a bicycle ratchet mechanism. Background technique [0002] In the existing technology, bicycle ratchets are matched with traditional pawls. The pawls rely on centrifugal force to cooperate inside, and the pawls rely on external pressure to engage outside. The wear and tear of the ratchet is difficult, and the joint of the ratchet will bear a large shear force, which will affect the service life. Contents of the invention [0003] The purpose of the present invention is to provide a simple structure, convenient and practical, safe and firm ratchet mechanism, especially suitable for the situation of high pressure. [0004] The technical solution of the present invention is: a bicycle ratchet mechanism, including a ratchet and a pawl, the ratchet is cylindrical, a through hole is arranged in the center of the ratchet, and internal teeth of the ratchet are arranged on the side wall of the t...
Claims
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IPC IPC(8): F16D41/28
CPCF16D41/28
Inventor 杨一凡
Owner 天津市艾尔奇自行车股份有限公司