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公开(公告)号：US20180135712A1
公开(公告)日：2018-05-17
申请号：US15812039
申请日：2017-11-14
发明人： CHUNG-CHENG CHEN , CHUNG-YI CHEN , YU-SYONG CHEN , SHENG-CIAN LI , HE-CHIH HUNG
IPC分类号： F16D65/18 , F16D55/228 , F16D65/00
CPC分类号： F16D65/18 , F16D55/228 , F16D65/0068 , F16D65/0075 , F16D65/183 , F16D2055/002 , F16D2055/0062 , F16D2055/007 , F16D2121/08 , F16D2125/08 , F16D2125/12
摘要： A hydraulic disc brake device to be mounted on a bicycle is disclosed, wherein the device includes a caliper main body, two brake linings, two membranes, and two rings. The caliper main body has a channel and two oil chambers respectively formed on two sides of the channel. Each of the oil chambers has an opening facing the channel. A part of a brake disc of the bicycle is located in the channel. The brake linings are provided in the channel, and are on two sides of the brake disc. The membranes are assembled to the caliper main body to seal the openings. By injecting hydraulic oil into the oil chambers, the membranes are pushed by the hydraulic oil to push against the brake linings, making the brake linings approach each other to clamp the brake disc, to thereby stop the bicycle.
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公开(公告)号：US20170343047A1
公开(公告)日：2017-11-30
申请号：US15376927
申请日：2016-12-13
摘要： A connecting device for a chainring of a bicycle is disclosed, including a connecting disc, a shaft, and a crank. The connecting disc is adapted to be engaged with a chainring, and has an axial bore, a bulging portion bulging from a central portion of the connecting disc, and a surrounding portion, which is flat, and surrounds an outer periphery of the bulging portion. The shaft passes through the axial bore to be fixedly engaged with the connecting disc. The shaft has a connecting end. The crank has a connecting end engaged with the connecting end of the shaft, and a bearing end adapted to bear an external force to make the crank rotate around the shaft. Whereby, the amount of materials used to make the connecting device is decreased. At the same time, the manufacturing cost, the size, and the weight of the connecting device are all reduced.
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