发明授权
- 专利标题： Cylindrical shaft, transport roller, transport unit and printing apparatus
- 专利标题（中）： 圆柱轴，输送辊，运输单元和印刷设备
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申请号： US12704459申请日： 2010-02-11
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公开(公告)号： US09180702B2公开(公告)日： 2015-11-10
- 发明人: Koichi Saito , Katsunori Ono , Kenji Ozawa
- 申请人： Koichi Saito , Katsunori Ono , Kenji Ozawa
- 申请人地址： JP Tokyo
- 专利权人： Seiko Epson Corporation
- 当前专利权人： Seiko Epson Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Workman Nydegger
- 优先权： JP2009-031834 20090213; JP2009-031835 20090213; JP2009-242233 20091021
- 主分类号： B41J13/076
- IPC分类号： B41J13/076 ; B41J13/02 ; F16C3/02
摘要：
A cylindrical shaft which is formed in a cylindrical shape by pressing process in a state in which a pair of ends are opposite to each other is disclosed. A joint is formed between the pair of ends, and includes a plurality of intersection portions extending in a direction intersecting with an axial direction of the cylindrical shaft, a first straight portion connecting the ends of one side each of the pair of adjacent intersection portions, and a second straight portion connecting the ends of the other sides of the pair of adjacent intersection portions and being shorter than the first straight portion. A distance between the pair of ends at the first straight portion is shorter than a distance between the pair of ends at the second straight portion.
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