Depth of cut locking mechanism for a plunge-type router

Details Depth of cut locking mechanism for a plunge-type router Depth of cut locking mechanism for a plunge-type router

1993-09-16

1994-10-11

Bray, W. Donald

Woodworking

Shaping machine

Heel forming

144136C, 409182, B27C 510

Patent

active

053538528

ABSTRACT:
A depth of cut lock mechanism for a plunge-type router having a drive motor enclosed within a motor housing. The motor housing is attached to a base plate by a pair of spatially separated guides. Each guide has a guide sleeve attached to the motor housing and a guide tube attached to the base plate and slidably received in the guide sleeve. The lock mechanism has a lock disc rotatable between a lock position and a release position. A torsional spring resiliently biases the disc toward the lock position and a manually activated release lever displaces the lock disc toward the unlocked position. A brass plug is axially displaced by the rotation of the lock disc to frictionally lock the guide sleeve and guide tube to each other. A ratchet mechanism is provided to adjust the torque applied to the lock disc by the torsional spring and a release lever lock mechanism is provided to lock the release lever and lock disc in a release position.

REFERENCES:
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patent: 4319860 (1982-03-01), Beares
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patent: 5143494 (1992-09-01), McCurry
patent: 5191921 (1993-03-01), McCurry
patent: 5273089 (1993-12-01), Fuchs et al.

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