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公开(公告)号：US4304009A
公开(公告)日：1981-12-08
申请号：US143763
申请日：1980-04-25
CPC分类号： A42B3/14
摘要： A safety helmet (10) including an impact absorbing shell (12) and a number of energy absorbing strap retainers (34) is disclosed. A plurality of sockets (20) receive the retainers (34). The retainers (34) include a pair of flexible shock absorbing wings (46) which are designed to nest against lands (30). Upon the application of a blow to the helmet (10), the wings (46) flex and absorb a portion of the impact.
摘要翻译： 公开了一种包括冲击吸收壳（12）和多个能量吸收带固定器（34）的安全头盔（10）。 多个插座（20）接收保持器（34）。 保持器（34）包括一对柔性减震翼（46），其被设计成嵌套在平台（30）上。 当对头盔（10）施加打击时，翼（46）弯曲并吸收一部分冲击。
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公开(公告)号：US4878265A
公开(公告)日：1989-11-07
申请号：US241917
申请日：1988-09-07
申请人： Lanny E. Nesbitt
发明人： Lanny E. Nesbitt
CPC分类号： E05B47/0002 , E05B47/0603 , E05C17/28 , E05F3/222 , E05B17/2011 , E05B47/0004 , E05F2003/228 , E05Y2201/462 , E05Y2900/132 , Y10S16/17 , Y10T16/27 , Y10T292/28
摘要： A releasable door hold-open mechanism, for use with a door closer, is disclosed. The mechanism employs a latch assembly, mounted in a track which defines a predetermined path for a slider shoe associated with a door closer arm. The latch assembly employs a pair of reciprocable rollers, associated with a solenoid activated clevis. When the solenoid is actuated, the clevis maintains the rollers in a latching position, in which they can capture and hold a wedge associated with the slider shoe. Deactivation of the solenoid permits release of the wedge, and the force of the solenoid can also be overcome manually to release the wedge. The latch assembly is selectively positionable in a broad range of positions within the track, to determine the angular position of the door at which holding occurs.
摘要翻译： 公开了一种用于门闭合器的可释放的门保持开启机构。 该机构采用一个闩锁组件，其安装在轨道中，该轨道限定了与门关闭臂相关联的滑动鞋的预定路径。 闩锁组件采用与螺线管活动的U形夹相关联的一对可往复运动的滚子。 当螺线管被致动时，U形夹将辊保持在锁定位置，在该位置上，它们可以捕获并保持与滑块相关联的楔形件。 螺线管的停用允许释放楔形件，并且螺线管的力也可以手动克服以释放楔形件。 闩锁组件可选择性地定位在轨道内的宽范围的位置中，以确定发生保持的门的角位置。
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