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    • 7. 发明授权
    • Adjustable closure force control device for a bench vise and method
    • 用于台钳和方法的可调关闭力控制装置
    • US5531428A
    • 1996-07-02
    • US358809
    • 1994-12-19
    • Andrew E. DembicksJames E. Herrmann
    • Andrew E. DembicksJames E. Herrmann
    • B25B1/10B25B1/24B25B1/02
    • B25B1/103B25B1/24
    • The invention discloses an adjustable closure force control device for a screw-type vise and a method for selectively controlling the closure force of the vise. The control device uses a nut barrel for threadingly receiving a screw of a screw-type vise with a movable vise jaw being operatively connected to the screw so that advancement of the screw through the nut barrel results in vise jaw closure about an article to be held. The closure force control selectively controls the advancement of the screw through the nut barrel in response to the resistance to movement encountered by the movable vise jaw. In a preferred form of the invention, a compressible detent plunger cooperates with a series of apertures spaced about the nut barrel periphery. This allows the nut barrel to rotate with the screw, ending screw advancement and jaw closure despite continued screw rotation, when the predetermined resistance to jaw movement is encountered. The closure force control can be selectively overridden allowing the vise to perform in a direct operating mode, similar to that of conventional vises.
    • 本发明公开了一种用于螺旋型虎钳的可调闭合力控制装置和用于选择性地控制虎钳的关闭力的方法。 控制装置使用螺母筒来螺纹地接收螺旋型虎钳的螺钉,其中可动的虎钳钳可操作地连接到螺钉上,使得螺钉穿过螺母筒的进给导致围绕待保持的物品的虎钳钳口 。 闭合力控制响应于可移动虎钳的运动阻力,选择性地控制螺杆通过螺母筒的前进。 在本发明的优选形式中,可压缩的止动柱塞与围绕螺母桶周边间隔开的一系列孔配合。 这允许螺母桶随着螺钉旋转,结束螺钉前进和钳口闭合,尽管持续的螺旋旋转,当遇到预定的阻力下降动作时。 可以选择性地覆盖闭合力控制,从而允许虎钳以类似于传统护罩的直接操作模式执行。