Switch lock-off mechanism
First Claim
1. In a power tool having a power switch carried by a housing and a tool head attached to the housing, a lock-off mechanism comprising:
- a locking member carried by the housing and normally biased to a locked position preventing actuation of the power switch; and
an actuation member mounted to the tool head for manual transverse displacement from a neutral position, the actuation member having a first surface for cooperatively engaging a first end of the locking member such that transverse displacement of the actuation member moves the locking member from the locked position to an unlocked position for permitting actuation of the power switch.
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Accused Products
Abstract
A lock-off mechanism (80) for a power tool (2) comprises a longitudinally extended locking member (80) pivotally mounted within the power tool and having one end (86) resiliently biased into engagement with a power switch (12). The mechanism further comprising an actuation member extending substantially perpendicular to the locking member (80) so as to be displaceable transversely with respect to the locking member (80) and engagable therewith to effect cam engagement between a cam surface (300) of the actuation member and a cam surface (90) of the lever member (80) upon such transverse displacement of the actuation member, so as to pivotally displace the locking member (80) out of engagement with the switch (12).
74 Citations
23 Claims
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1. In a power tool having a power switch carried by a housing and a tool head attached to the housing, a lock-off mechanism comprising:
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a locking member carried by the housing and normally biased to a locked position preventing actuation of the power switch; and an actuation member mounted to the tool head for manual transverse displacement from a neutral position, the actuation member having a first surface for cooperatively engaging a first end of the locking member such that transverse displacement of the actuation member moves the locking member from the locked position to an unlocked position for permitting actuation of the power switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 18, 19, 21, 22, 23)
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13. A power tool comprising:
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a housing; a tool head releasably attached to the housing; and a lock-off mechanism, the lock-off mechanism including; a locking member carried by the housing and normally biased to a locked position preventing actuation of the power switch; and an actuation member mounted to the tool head for manual transverse displacement from a neutral position, the actuation member having a first surface for cooperatively engaging a first end of the locking member such that transverse displacement of the actuation member moves the locking member from the locked position to an unlocked position for permitting actuation of the power switch. - View Dependent Claims (14, 15, 16, 17, 20)
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Specification