Invention Grant
- Patent Title: Bicycle crank assembly
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Application No.: US13253113Application Date: 2011-10-05
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Publication No.: US09771128B2Publication Date: 2017-09-26
- Inventor: Akinobu Sugimoto , Eigo Kuroiwa , Toshio Tetsuka , Yusuke Nishimoto
- Applicant: Akinobu Sugimoto , Eigo Kuroiwa , Toshio Tetsuka , Yusuke Nishimoto
- Applicant Address: JP Osaka
- Assignee: Shimano Inc.
- Current Assignee: Shimano Inc.
- Current Assignee Address: JP Osaka
- Agency: Global IP Counselors, LLP
- Main IPC: B62M3/00
- IPC: B62M3/00 ; B62M9/10

Abstract:
A bicycle crank assembly is provided with a first sprocket, a second sprocket, a crank arm, a sprocket fixing structure and an alignment tube. The first sprocket includes a plurality of first teeth and at least one first mounting portion having a first mounting opening. The second sprocket includes a plurality of second teeth and at least one second mounting portion having a second mounting opening. The crank arm includes at least one sprocket attachment portion having a third mounting opening. The sprocket fixing structure secures the first and second sprockets to the crank arm via the first, second and third mounting openings. The alignment tube extends through at least two of the first, second and third mounting openings.
Public/Granted literature
- US20130087012A1 BICYCLE CRANK ASSEMBLY Public/Granted day:2013-04-11
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