发明授权
US4862615A Releasable anchoring and tensioning apparatus for billboard displays
失效
用于广告牌显示器的可释放的锚定和张紧装置
- 专利标题： Releasable anchoring and tensioning apparatus for billboard displays
- 专利标题（中）： 用于广告牌显示器的可释放的锚定和张紧装置
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申请号： US187587申请日： 1988-04-28
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公开(公告)号： US4862615A公开(公告)日： 1989-09-05
- 发明人: David U. Hillstrom
- 申请人： David U. Hillstrom
- 申请人地址： MI Farmington Hills
- 专利权人： Marketing Displays, Inc.
- 当前专利权人： Marketing Displays, Inc.
- 当前专利权人地址： MI Farmington Hills
- 主分类号： G09F15/00
- IPC分类号： G09F15/00
摘要：
An anchoring apparatus for anchoring and tensioning a sheet material on a panel structure, such as a billboard. A preferred channel-shaped base member is secured to the rear of the panel structure and includes a ratcheted clip member slidably connected to the base member. The clip member is conveniently ratcheted to tension the sheet material, or disengaged to release or relax the sheet material, using a screwdriver or other common lever-type tool, thus greatly facilitating the ease and speed of erection, anchoring, tensioning and removal of the sheet material.
公开/授权文献
- US4386605A Capture and restraining device 公开/授权日：1983-06-07
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