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公开(公告)号:US4274626A
公开(公告)日:1981-06-23
申请号:US34230
申请日:1979-04-30
CPC分类号: E04F15/225 , A63C19/04
摘要: 4.times.8 Plywood sections are interconnected by a system of tabs and latches, and a spring suspension system is provided beneath the interconnected sections.
摘要翻译: 4×8胶合板部分通过凸片和闩锁系统互连,并且在互连部分下方提供弹簧悬挂系统。
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公开(公告)号:US4275882A
公开(公告)日:1981-06-30
申请号:US134720
申请日:1980-03-27
IPC分类号: A63B21/00 , A63B21/008 , A63B21/16 , A63B21/08 , A63B23/02
CPC分类号: A63B21/154 , A63B21/00072 , A63B21/0083 , A63B21/169 , A63B21/4035 , A63B21/4047 , A63B23/03525
摘要: A hydraulic shock absorber has an adjustable connection to the exercise lever to provide variable resistive forces to exercise, and alternately the shock can be mounted to the exercise lever as a dead weight and a pulley-cord system added, so that a multiplicity of exercises can be performed with the same basic unit.
摘要翻译: 液压减震器具有与运动杆的可调连接,以提供可变的阻力来锻炼,并且可替代地,当加重了静重和滑轮绳系统时,冲击可以安装到运动杆上,使得多个锻炼可以 用相同的基本单位执行。
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公开(公告)号:US4272073A
公开(公告)日:1981-06-09
申请号:US956830
申请日:1978-11-02
CPC分类号: A63B4/00
摘要: The invention relates to a gymnastic balance beam of extruded aluminum with a bottom and end closures. The beam is of a general U-shape with the bottom plates secured to a flanged portion of the beam. The beam can be selectively covered with padding if desired.
摘要翻译: 本发明涉及具有底部和封闭件的挤压铝的体操平衡梁。 梁是一般的U形,底板固定在梁的凸缘部分。 如果需要,梁可以选择性地覆盖填充物。
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