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outer link

A technology of outer chain links and outer chain pieces, which is applied in the chain field, can solve problems such as insufficient smoothness of operation and inability to achieve the best shifting effect, and achieve the effect of rapid shifting

Active Publication Date: 2019-05-24
YABAN CHAIN INDAL
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The previous patent is only provided with a chamfered portion on the outer periphery of the second outer chain link plate, so that the chain can be smoothly snapped into the large and small gears when the speed is changed. However, these structures still affect the smooth operation of the speed change. There are deficiencies, can not achieve the best shifting effect

Method used

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Embodiment Construction

[0066] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific examples.

[0067] see figure 1 and figure 2 As shown, the first embodiment of the present invention is a chain piece structure, which is provided with a chain piece body (1), and the two ends of the chain piece body (1) are respectively provided with a joint portion (11) in the shape of a relative arc. , the joint part (11) is provided with a penetrating shaft hole (12), and a sunken waist part (13) is provided between the two joint parts (11). The two sides of this waist (13) are provided with a first chamfer (14) respectively, and the peripheral ring of two joint parts (11) is provided with a second chamfer (15), and this second chamfer (15) ring is arranged on Half of the periphery of the joint part (11), and the two second chamfers (15) are symmetrically staggered and arranged on each half of the periphery of the t...

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Abstract

The invention discloses an outer chain joint and a chain piece structure. A chain piece is provided with a chain piece body, two ends of which are respectively provided with joining parts. The combination parts are respectively equipped with perforative shaft holes. A recessed waist part is arranged between the two joining parts. Two side edges of the waist part are respectively provided with first chamfers. A groove is additionally arranged in the waist part. The maximal width of the groove relative to the position between the two joining parts in the vertical direction is 20%-60% the minimal width in the same direction of the waist part. The outer chain joint is formed in such a manner that a first outer chain piece and a second outer chain piece, same with the chain piece body, are connected in a pivotal manner. During speed change of a bicycle, chain teeth of a toothed disc are clamped into or out of a chain by engagement. There is no obstruction or noise so that speed can be smoothly changed.

Description

technical field [0001] The invention relates to a chain, in particular to an outer chain link and a chain piece structure of the chain. Background technique [0002] The speed change mechanism of a general bicycle usually uses a derailleur to move the chain to switch between the large gear and the small gear. But no matter whether the chain is to break away from or snap in between the large and small gears, it will cause the outer chain plate of the chain and the sprockets of the large and small gears to hinder, so as to affect the smooth operation during speed change. [0003] Therefore, there is the invention No. 201538870 "bicycle chain" patent case disclosed in Taiwan, China on October 16, 2015, which discloses: an outer link plate that can be used for a bicycle chain. The outer link plate has an inner surface configured to face the other mating outer link plate in the assembled state, and an outer surface opposite the inner surface. The outer link plate has an outer p...

Claims

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Application Information

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IPC IPC(8): F16G15/14
Inventor 王文滨
Owner YABAN CHAIN INDAL
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