Ratcheting screwdriver

申请公布号：

US5619891(A)

申请号：

US19950553866

申请日期：

1995.11.06

申请公布日期：

1997.04.15

申请人：

BEERE PRECISION MEDICAL INSTRUMENTS, INC.

发明人：

TIEDE, CLAIR L.

分类号：

B25B13/46;B25B15/04;(IPC1-7):B25B13/46

主分类号：

B25B13/46

摘要：

A ratcheting screwdriver with a handle and a gear rotatable therein and two pawls engageable between the handle and the gear, for selective ratcheting action. A ring is rotatable on the handle for removing the pawls from engagement with the gear, and springs yieldingly bias the pawls into engagement with the gear. The ring has recesses on a circular wall for receiving portions of the pawls in pivoting the pawls into engagement with the gears.