公开(公告)号：US5546831A

公开(公告)日：1996-08-20

申请号：US126981

申请日：1993-09-24

申请人： Katherine M. Grant, deceased ,  Frederic F. Grant

发明人： Katherine M. Grant, deceased ,  Frederic F. Grant

IPC分类号： B67B7/18 ,  B67B7/14

CPC分类号： B67B7/18

摘要： Any one of several rotary objects of various diameters is gripped between a pair of joined jaws, without a need for manual adjustment of such jaws to any of the various diameters. To this end, the jaws are spaced at a taper to each other for all of the various diameters, and are pivoted, biased and rendered moveable relative to each other in diminution of that taper against the bias and conversely in self-restoration of the taper by the bias upon a release of the object from the jaws. Any one of the rotary objects may be wedged between the jaws at the taper, and one of the jaws is propelled with such wedged rotary object against the bias relative to the other jaw of the pair in diminution of the taper until the jaws exert optimum grip on the object. A loosening or other operation may then be performed on the wedged rotary object, and such wedged rotary object may be released from the jaws [for self-restoration of the taper by the bias.

摘要翻译： 各种直径的几个旋转物体中的任何一个被夹持在一对接合的夹爪之间，而不需要手动调节这些爪到任何各种直径。 为此，钳口对于所有各种直径彼此间隔开，并且相对于彼此以枢转的方式枢转，偏置并且可相对于该锥度相对于偏压减小，并且相反地在锥度的自恢复中 通过从颚骨释放物体的偏见。 任何一个旋转物体可以楔形在楔形件的楔爪之间楔入，并且其中一个夹爪以这种楔形的旋转物体推动，抵抗相对于另一个夹爪的偏压，减小了锥度，直到夹爪发挥最佳抓地力 对象上 然后可以在楔形的旋转物体上进行松动或其它操作，并且这种楔入的旋转物体可以从夹爪（用于通过偏压自动恢复锥形）被释放。