Invention Grant
- Patent Title: Bicycle transmission device
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Application No.: US16513050Application Date: 2019-07-16
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Publication No.: US10994802B2Publication Date: 2021-05-04
- Inventor: Takashi Yamamoto
- Applicant: Shimano Inc.
- Applicant Address: JP Osaka
- Assignee: Shimano Inc.
- Current Assignee: Shimano Inc.
- Current Assignee Address: JP Osaka
- Agency: Global IP Counselors, LLP
- Priority: JP2015-063156 20150325
- Main IPC: B62M6/55
- IPC: B62M6/55 ; B62M6/50 ; B62M11/06 ; F16H3/083 ; B62M11/02

Abstract:
A bicycle transmission device basically includes an input rotational shaft, an output part, a transmission mechanism and a switching mechanism. The transmission mechanism includes a first rotating body configured to transmit rotation of the input rotational shaft and a fourth rotating body configured to transmit the rotation of the input rotational shaft. The switching mechanism is configured to selectively switch between a first state in which a ratio of a rotational speed of the output part to a rotational speed of the input rotational shaft is a first ratio and a second state in which the ratio is a second ratio that is different from the first ratio. The switching mechanism includes a one-way clutch and a switching unit.
Public/Granted literature
- US20190337586A1 BICYCLE TRANSMISSION DEVICE Public/Granted day:2019-11-07
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