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1. 发明授权

US5577780A Push/pull latch assembly 失效
标题翻译：推/拉闩锁组件
公开(公告)号：US5577780A
公开(公告)日：1996-11-26
申请号：US507645
申请日：1995-07-25
申请人： Terry Justice
发明人： Terry Justice
IPC分类号： E05C1/14 , E05C1/12
CPC分类号： E05C1/14 , Y10T292/0976 , Y10T292/0986 , Y10T292/93
摘要： A latch assembly is operated by either pushing or pulling against the end of, displacing a given amount of longitudinal travel, a spindle which has a helically formed portion of a given length engaged by congruently formed cam aperture surfaces. The cam is rotatably positioned with respect to and in engagement with the spindle. A rollback is contacted by one of two lobe surfaces of the cam, one corresponding to a pull of the spindle, the other corresponding to a push upon the spindle from the opposed end, the cam rotating in alternate directions. The rollback may be of a single piece with the latch member which is slidably held by the frame of the latch assembly. Biasing of the latch into an extended position and limiting the travel allowed the spindle with positive stops along with biasing of the spindle is suggested such that the normal, extended latch position has one spindle end which may only be pushed against the biasing through the given amount of travel, thus effecting unfastening of the closure and facilitating opening of the closure as well with a single motion; the opposed spindle end may only be pulled, against the same bias, through the travel and similarly effect unfastening and opening of the closure with a single motion. Locking of the assembly is suggested, preferably by disengagement of the rollback from the cam as opposed to interposition of a member inhibiting spindle travel.
摘要翻译：闩锁组件通过推动或拉动抵靠给定量的纵向行程的端部来操作，该主轴具有由一致形成的凸轮孔表面接合的给定长度的螺旋形成部分。凸轮相对于主轴可旋转地定位并与主轴接合。凸轮的两个凸角表面中的一个接触回滚，一个对应于主轴的拉动，另一个对应于从相对端推动主轴，凸轮沿交替方向旋转。回滚可以是单个部件，其中闩锁部件可滑动地保持在闩锁组件的框架上。建议将闩锁偏置到延伸位置并限制行程允许主轴具有正的止动件以及主轴的偏压，使得正常的延伸的闩锁位置具有一个主轴端部，其可以仅被抵抗偏压施加给定的量的行程，从而使封闭件松开，并有助于打开封闭件以及单一动作; 相对的主轴端部可以仅通过行程被拉向相同的偏压，并且类似地用单个运动来解除闭合件的松开和打开。建议组装的锁定，优选地通过从凸轮脱开而不是插入阻止主轴行进的构件。

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