发明名称 |
Pneumatic cushion and manufacturing method therefor |
摘要 |
A pneumatic cushion fabricated from two sheets of expandable thin material are welded together at a circumferential portion thereof to define therebetween a expandable pneumatic chamber. The welded portion is separated from the pneumatic chamber by a substantially rigid board. The board-like member cooperates with a portion of the sheets mating therewith to isolate the welded portion from tension forces applied to the sheets as the chamber air pressure increases.
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申请公布号 |
US4467484(A) |
申请公布日期 |
1984.08.28 |
申请号 |
US19820349788 |
申请日期 |
1982.02.18 |
申请人 |
NISSAN MOTOR COMPANY, LIMITED;ACHILLES CORPORATION;IKEDA BUSSAN COMPANY, LIMITED |
发明人 |
NAGATAKE, HIROSHI;HAYASHI, KEIJI |
分类号 |
A47C4/54;A47C7/46;A47C27/08;A61H39/04;(IPC1-7):A47C27/08 |
主分类号 |
A47C4/54 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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