公开(公告)号：US3912022A

公开(公告)日：1975-10-14

申请号：US47143074

申请日：1974-05-20

申请人： SUN OIL CO PENNSYLVANIA

发明人： SMITH HOWARD C

IPC分类号： B25B19/00 ,  B25B21/02 ,  B25B27/00 ,  B25D9/11 ,  B25D15/00

CPC分类号： B25B27/0085 ,  B25B19/00 ,  B25B21/02 ,  B25D9/11 ,  Y10S173/01

摘要： A portable power impact wrench with a unique feature is disclosed. The wrench contains an actuator, which when activated, usually by a trigger, gives an automatic and predetermined amount of torque to the wrench. The torque is just sufficient to break the initial tightness of a nut. The wrench has utility, for example, for loosening a tire wheel lug nut which has been highly torqued by garage automatic impact wrench. The wrench also has industrial utility.

摘要翻译： 公开了具有独特特征的便携式电动冲击扳手。 扳手包含致动器，当致动器通常通过触发器被激活时，向扳手提供自动和预定量的扭矩。 扭矩恰好足以打破螺母的初始紧度。 扳手具有例如用于松开由车库自动冲击扳手高度扭转的轮胎轮辋螺母的用途。 扳手也具有工业实用性。