BICYCLE SPROCKET COUPLING DEVICE

PROBLEM TO BE SOLVED: To provide a bicycle sprocket coupling device that achieves a reduction in production cost and weight saving.SOLUTION: A bicycle sprocket coupling device comprises one gear crank, one crankshaft, and one crank. The gear crank has one shaft hole, and the crankshaft is fixedly co...

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Bibliographic Details
Main Authors CHEN CHUNGNG, CHIN CHUGI, LI SHENG-CIAN, CHIANG YUANNG, CHEN YU-SYONG
Format Patent
LanguageEnglish
Japanese
Published 30.11.2017
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Summary:PROBLEM TO BE SOLVED: To provide a bicycle sprocket coupling device that achieves a reduction in production cost and weight saving.SOLUTION: A bicycle sprocket coupling device comprises one gear crank, one crankshaft, and one crank. The gear crank has one shaft hole, and the crankshaft is fixedly connected to the gear crank through the shaft hole. Cost reduction, downsizing and weight saving are achieved by a structure in which the gear crank and the crankshaft are fixedly connected together.SELECTED DRAWING: Figure 2 【課題】生産コストの削減および軽量化を実現した一種の自転車スプロケット連結装置を提供する。【解決手段】 一種の自転車スプロケット連結装置は1つのギアクランク、1つのクランク軸および1つのクランクを備えている。ギアクランクは1つの軸穴を備えており、クランク軸はこの軸穴を通ってギアクランクと固接している。ギアクランクとクランク軸を固接させた構造により、コストの削減、コンパクト化および軽量化を実現している。【選択図】図2
Bibliography:Application Number: JP20170058525