Invention Grant
- Patent Title: Method of manufacturing a bicycle rim
- Patent Title (中): 制造自行车轮辋的方法
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Application No.: US13018750Application Date: 2011-02-01
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Publication No.: US08756814B2Publication Date: 2014-06-24
- Inventor: Etsuyoshi Watarai
- Applicant: Etsuyoshi Watarai
- Applicant Address: JP Osaka
- Assignee: Shimano Inc.
- Current Assignee: Shimano Inc.
- Current Assignee Address: JP Osaka
- Agency: Global IP Counselors
- Main IPC: B21K1/38
- IPC: B21K1/38 ; B60B25/00
Abstract:
A bicycle rim is basically provided with an outer rim portion and an inner rim portion. The outer rim portion has a ring shape of a first material. The inner rim portion is joined to the outer rim portion. The inner rim portion has a ring shape of a second material with an internal residual stress distribution resulting from the ring shape being formed by spinning of the second material.
Public/Granted literature
- US20120193971A1 BICYCLE RIM AND METHOD OF MANUFACTURE THEREOF Public/Granted day:2012-08-02
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