Invention Grant
- Patent Title: Apparatus for forming a wheel rim
- Patent Title (中): 用于形成轮辋的装置
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Application No.: US776707Application Date: 1977-03-11
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Publication No.: US4067217APublication Date: 1978-01-10
- Inventor: Gerard Bisaillon , Gilles Bisaillon
- Applicant: Gerard Bisaillon , Gilles Bisaillon
- Assignee: Gerard Bisaillon,Gilles Bisaillon
- Current Assignee: Gerard Bisaillon,Gilles Bisaillon
- Priority: CA264651 19761102
- Main IPC: B21D53/30
- IPC: B21D53/30 ; B21H1/10
Abstract:
A wheel rim is formed from a cylindrical blank in an apparatus including a female die with a profiled, internal die cavity for receiving the blank and a male die, which includes a pair of shafts with eccentric portions carrying rollers for sequentially bearing against the blank to gradually form a wheel rim. During formation of the wheel rim, the female die, which is mounted on a turntable, is rotated while the male die is stationary. The blank is held between a ring portion of the male die and the central portion of the female die. The shafts carrying the rollers are independently rotatable, so that only one set of rollers actively forms the rim at any time during formation.
Public/Granted literature
- US5823166A Apparatus for monitoring the cylinders of a multi-cylinder internal combustion engine Public/Granted day:1998-10-20
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