发明授权
- 专利标题: Castor wheel carriage
- 专利标题(中): 脚轮车轮
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申请号: US311020申请日: 1981-10-13
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公开(公告)号: US4494464A公开(公告)日: 1985-01-22
- 发明人: Kazuo Fujita
- 申请人: Kazuo Fujita
- 专利权人: Kazuo Fujita
- 当前专利权人: Kazuo Fujita
- 主分类号: B60B33/00
- IPC分类号: B60B33/00 ; B61F3/16 ; B61F5/38
摘要:
A wheeled carriage is proposed which is capable of moving on rails to-and-fro, and of moving on a railless flat floor in any desired direction. The carriage has at least three pivotable wheel units. Each of these units consists of a first wheel and a second wheel. The first wheel comprises a core wheel portion and a raised peripheral wheel portion surrounding the latter. The second wheel resembles substantially the core wheel portion of the first wheel. The wheel unit is designed for making two contact points with rails when seen at its side view and equally two contact points with rails when seen at its front or rear view.
公开/授权文献
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