发明授权
US5186989A Annular article-wrapping member and method of making same
失效
ANNULAR ARTICLE-WRAPPING MEMBER AND METHOD OF MAKING SAME
- 专利标题: Annular article-wrapping member and method of making same
- 专利标题(中): ANNULAR ARTICLE-WRAPPING MEMBER AND METHOD OF MAKING SAME
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申请号: US488825申请日: 1990-03-06
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公开(公告)号: US5186989A公开(公告)日: 1993-02-16
- 发明人: Masamitsu Tsukada , Kiyoshi Murata , Yasushi Ota , Yoshihiko Watanabe
- 申请人: Masamitsu Tsukada , Kiyoshi Murata , Yasushi Ota , Yoshihiko Watanabe
- 申请人地址: JPX Tokyo
- 专利权人: Heisei Polymer Co., Ltd.
- 当前专利权人: Heisei Polymer Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX1-55580 19890308; JPX1-185202 19890718
- 主分类号: B29C65/00
- IPC分类号: B29C65/00 ; B29C65/02 ; B29C65/18 ; B65B25/24 ; B65B51/14 ; B65D75/00 ; B65D85/02
摘要:
An annular article-wrapping member includes a shrinkable wrapping material which is wound on the outer periphery of an annular article to be wrapped in such a manner that the direction of shrinkage of the shrinkable wrapping material coincides with a circumferential direction of the outer periphery of the annular article. The overlapped portions of the wrapping material subsequently are joined together. The shrinkable wrapping material is heated to be shrunk to provide an intermediate wrapping member having sleeve openings having a diameter smaller than an inner diameter of the annular article. Sleeve forming portions of the intermediate wrapping member together in a ring-shape along an inner periphery of the annular article. The portion of the shrinkable wrapping material disposed inwardly of the joined portion is removed by cutting, thereby obtaining the annular article-wrapping member.
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