公开(公告)号：US06650212B1

公开(公告)日：2003-11-18

申请号：US10174791

申请日：2002-06-19

申请人： Weyman Weems

发明人： Weyman Weems

IPC分类号： H01F720

CPC分类号： E05B47/0002 ,  B64G1/222 ,  B64G1/641 ,  B64G1/645 ,  E05B47/0006 ,  E05B47/0607 ,  E05C3/02 ,  E05C3/34 ,  E05C3/40 ,  H01F7/124 ,  H01F7/20

摘要： An electromagnetic latching assembly is disclosed that provides a mechanically advantageous holding force for securing two objects relative to one another. Generally, the assembly contains at least one and preferably two levers that are mounted to a frame so that they may pivot between open and closed positions. The frame is mounted to a first object and the lever(s) applies a holding force to a second object when the lever(s) is in the closed position. A permanent magnet is used to apply a magnetic restraining force to maintain the lever(s) in the closed position. The magnetic restraining force utilizes the leverage of the lever(s) to effectively apply an amplified holding force to the second object when the assembly is in the closed position. An electromagnet, which may be remotely actuated, is utilized selectively counteract the magnetic restraining force and allow the latch assembly to open and release the second object.

摘要翻译： 公开了一种电磁锁定组件，其提供用于相对于彼此固定两个物体的机械上有利的保持力。 通常，组件包括至少一个并且优选地两个安装到框架上的杠杆，使得它们可以在打开位置和关闭位置之间枢转。 当杠杆处于关闭位置时，框架被安装到第一物体上，并且杆对第二物体施加保持力。 使用永久磁铁来施加磁力约束力以将杠杆保持在关闭位置。 当组件处于关闭位置时，磁力抑制力利用杠杆的杠杆作用来有效地对第二物体施加放大的保持力。 选择性地可以远程致动的电磁铁被选择地抵消磁力抑制力并允许闩锁组件打开和释放第二物体。

公开(公告)号：US6129181A

公开(公告)日：2000-10-10

申请号：US84529

申请日：1998-05-26

申请人： Weyman Weems

发明人： Weyman Weems

IPC分类号： F03G1/02 ,  F03G7/06 ,  F03G1/00

CPC分类号： F03G7/065 ,  F03G3/00 ,  F03G6/00 ,  Y02E10/46

摘要： A constant force actuator transforms applied heat to an applied force on an output device. Strips of shape memory alloy are coiled into spirals and trained to have this configuration as a static state. The shape memory alloy springs are attached to the output device to apply a directional force. When one of the springs is heated, the modulus of elasticity within the spring material changes. This change in modulus increases the force which the spring exerts in returning to its static state, which in turn increases the force applied to the output device, upsetting the balance of forces and resulting in a rotation.

摘要翻译： 恒力致动器将施加的热量转换成输出装置上施加的力。 形状记忆合金条被卷成螺旋状并被训练成将该构型作为静态。 形状记忆合金弹簧附接到输出装置以施加定向力。 当弹簧之一被加热时，弹簧材料内的弹性模量变化。 模量的这种变化增加了弹簧在返回到其静态时施加的力，这又增加了施加到输出装置的力，从而使力平衡并导致旋转。