Rotating shaft locking mechanism

Details Rotating shaft locking mechanism Rotating shaft locking mechanism

2011-07-19

2011-07-19

Low, Lindsay (Department: 3721)

Tool driving or impacting

Means to drive tool about an axis

Electric motor

C173S216000, C173S213000

Reexamination Certificate

active

07980325

ABSTRACT:
A locking mechanism for a rotary power tool that includes an elongated locking member that is retained by, and is at opposite first and second end portions within, at least one of a motor housing and a gearbox end casting and being slideable between unlocked and locked positions, the locking member first end portion being accessible by a user to move the locking member to the locked position. The locking member also includes a locking portion intermediate the first and second end portions that is configured to engage the non-circular configured portion of a rotatable armature shaft and prevent rotation thereof when the locking member is in its locked position. A biasing element is also included and configured to bias the locking member toward said unlocked position.

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