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Electric components for bicycles

A bicycle, electric technology, used in bicycle accessories, vehicle parts, bicycle gear shifting mechanisms, etc.

Active Publication Date: 2017-10-10
SHIMANO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The speed of the bicycle and other values ​​related to driving other than the manpower applied to the pedals are not taken into account
Therefore, there is still room for improvement in the control of the gear ratio

Method used

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  • Electric components for bicycles
  • Electric components for bicycles
  • Electric components for bicycles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The bicycle 10 includes a frame 12 , a handlebar 14 , a front wheel 16 , a rear wheel 18 , a drive mechanism 20 , a transmission 22 , a generator 24 , two strain sensors 26 , and a manual shift instruction input unit 28 .

[0037] The drive mechanism 20 includes left and right cranks 30 , a crankshaft 32 , left and right pedals 34 , a drive sprocket 36 , a driven sprocket 38 , and a chain 40 . The left and right cranks 30 are rotatably attached to the frame 12 via one crank shaft 32 relative to the frame 12 . The pedal 34 is rotatably mounted on the crank 30 relative to the crank 30 .

[0038] The drive sprocket 36 is attached to the outer periphery of the crankshaft 32 . The driven sprocket 38 is attached to the outer periphery of the axle 42 of the rear wheel 18 . The chain 40 is wound around the driving sprocket 36 and the driven sprocket 38 . When the crank 30 is rotated by manpower applied to the pedal 34 , the axle 42 of the rear wheel 18 is rotated by the driv...

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PUM

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Abstract

The present invention provides an electric component for a bicycle capable of more finely controlling a transmission in accordance with a running environment. A control unit (50) mounted on a bicycle includes a control unit (52) and an acceleration detection unit (56). An acceleration detection unit (56) detects the acceleration of the bicycle. A control unit (52) selects any one of the first to third shift conditions based on the acceleration detected by the acceleration detector (56), and controls an actuator (46) of the transmission device based on the selected shift condition.

Description

technical field [0001] The present invention relates to an electric component for a bicycle that controls a transmission. Background technique [0002] There is known an electric component for a bicycle that controls a transmission of the bicycle in response to various conditions. The variator changes the gear ratio of the bicycle. Appropriate gear ratios vary depending on the running environment of the bicycle and the like. For example, when a bicycle climbs a hill, the load on the rider can be reduced by reducing the gear ratio compared to when the bicycle is running on a flat road. Therefore, for example, the electric component for a bicycle described in Patent Document 1 controls the speed change device based on a comparison result of the speed of the bicycle and the human force applied to the pedals with a preset value. [0003] Patent Document 1: Japanese Patent No. 3284060 [0004] The electric components for bicycles described above control the speed change devic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62M25/08B62M9/122
CPCB62M25/08F16H59/44F16H59/48F16H61/0213F16H2061/0227F16H2061/0234
Inventor 手塚俊雄森进太郎
Owner SHIMANO INC