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Bicycle front derailleur

A front derailleur, bicycle technology, applied in vehicle parts, vehicle gearbox, chain/belt drive, etc., can solve problems such as increasing and increasing the weight of the front derailleur

Inactive Publication Date: 2008-07-16
SHIMANO SINGAPORE PRIVATE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The extra metal increases the weight of the front derailleur

Method used

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  • Bicycle front derailleur
  • Bicycle front derailleur
  • Bicycle front derailleur

Examples

Experimental program
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Embodiment Construction

[0020] Selected embodiments of the present invention will now be described with reference to the accompanying drawings. It will be apparent to those skilled in the art from this disclosure that the following descriptions of the embodiments of the invention are provided for illustration only and not for the purpose of limiting the invention as defined by the appended claims and their equivalents.

[0021] First refer to figure 1 , shows a bicycle 10 having a front derailleur 12 according to a first embodiment of the invention. The bicycle 10 basically includes (among other things) a frame 14 , a rear sprocket assembly 16 , a rear derailleur 18 , a front sprocket assembly 20 , a chain C and a front derailleur 12 . Frame 14 in first direction D 1 Extends from front to back.

[0022] Rear sprocket assembly 16 includes a plurality of conventional chainrings. The rear derailleur 18 is configured to position the chain C relative to the chainrings of the rear sprocket assembly 16 ...

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PUM

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Abstract

The invention discloses a bicycle front derailleur, which comprises a fixed part, a movable part, a chain guide and a connecting part. A mount is coupled to the bicycle frame. The movable piece is movably coupled to the fixed piece. A chain guide is coupled to the movable member and extends in a first direction substantially parallel to a lengthwise direction of the bicycle frame. The connecting member extends between the fixed member and the movable member, and is configured to move the chain guide in a second direction relative to the fixed member at least between a first position and a second position, the first and second directions being in between Angles between 50 and 70 degrees intersect.

Description

technical field [0001] The present invention relates generally to bicycle front derailleurs. More specifically, the present invention relates to a bicycle front derailleur for a front sprocket assembly having more than two chainrings. Background technique [0002] Cycling is becoming an increasingly popular form of recreation and transportation. Moreover, cycling has become a very popular competitive sport for both amateurs and professionals. Whether the bicycle is used for recreation, transportation or competition, the bicycle industry is constantly improving the various components of the bicycle. One component that has been extensively redesigned is the bicycle front derailleur. [0003] A conventional front derailleur typically includes a fixed member, a pivot connection, a movable member, and a chain guide configured to move with the movable member relative to the fixed member. The mounts are usually fixed to a portion of the bicycle frame. The movable member and li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M9/12B62M9/1342B62M9/1344
CPCB62M9/1342B62M9/1344
Inventor 白联城
Owner SHIMANO SINGAPORE PRIVATE LTD