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bicycle crank arm

A bicycle crank arm and crank technology, applied to bicycle accessories, crank structures, vehicle components, etc., can solve the problems of increasing manufacturing cost and/or manufacturing time

Active Publication Date: 2016-04-27
SHIMANO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, when the strain gauge is installed on the bicycle crank arm to detect the rider's pedaling force, the manufacturing cost and / or manufacturing time in the process of manufacturing the bicycle crank arm is increased.

Method used

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  • bicycle crank arm
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Examples

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Embodiment Construction

[0031] Selected embodiments will now be explained with reference to the figures. It will be appreciated by those skilled in the art from this disclosure that the following descriptions of the embodiments are provided for illustration only and not for the purpose of limiting the invention as defined by the appended claims and their equivalents.

[0032] first reference figure 1 , the illustrated bicycle 10 includes a bicycle crankshaft assembly 12 having a first (left) bicycle crank arm 14 according to a first embodiment. Here, the bicycle 10 is a road-type bicycle including various electronically controlled components. Of course, those skilled in the art will appreciate from this disclosure that the axle assembly 12 may be used with other types of bicycles. The bicycle crankshaft assembly 12 also includes a second (right) crank arm 16 . The free ends of the bicycle crank arms 14 and 16 are each provided with a bicycle pedal 18 . The rider exerts a pedaling force on the bi...

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PUM

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Abstract

A bicycle crank arm includes a crank body, a sensor support member, and a power sensing device. The crank body includes a crankshaft mounting portion and a pedal mounting portion. A sensor support member is disposed within the cavity of the crank body and attached to the crank body. The power sensing device is supported on the sensor support member.

Description

[0001] Cross References to Related Applications [0002] This application is a continuation-in-part of US Patent Application Serial No. 13 / 414,435, filed March 7, 2012. The entire disclosure of US Patent Application Serial No. 13 / 414,435 is hereby incorporated by reference herein. technical field [0003] The present invention relates generally to bicycle crank arms. More specifically, the present invention relates to a bicycle crank arm with a bicycle input force processing device that detects pedaling force. Background technique [0004] Bicycles are sometimes equipped with various sensors for providing information to the rider and / or to a controller to control various aspects of the bicycle, such as gear shifting or suspension stiffness. One such sensor is a torque or force sensor, which detects the pedaling force of the cyclist. Various sensing devices have been suggested for detecting the pedaling force of the rider. For example, in U.S. Patent No. 7,516,677 (assig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62M3/00B62M6/50
CPCB62M3/00B62J45/20B62J45/411B62J45/421G01L3/1457G01L3/24G01L5/12G01L11/025
Inventor 手塚俊雄渡会悦义
Owner SHIMANO INC