Patent ID: 6779428
Filing Date: 2004-08-24
Classification: B23D,B27B,Y10T

Abstract:
An adjustment device for a compound miter saw, and the adjustment device comprising:a base with a top, a front, a rear, a center and two opposite sides having a central through hole defined through the top at the center of the base; and a curved miter lip radially formed on the top of the base between the center and the front of the base and having a top edge, an outer periphery and multiple detents respectively defined on the top edge of the miter lip; a turntable with a bottom rotatably mounted on the top of the base by means of a fastener having an external threaded end passing through and extending out of the central through hole in the base onto which a nut is screwed and the turntable having a turning disk rotatably mounted on the top of the base and having a top, a bottom, a front and a rear; and a cutting guide protruded from the front of the turning disk and having a top, a bottom, a front and a rear; and a miter assembly mounted on the bottom of the turntable and comprising a resilient biasing member attached to the bottom of the turning disk corresponding to the miter lip on the base and having a fixed end, a free end and an engaging stop, the fixed end attached to the bottom of the turning disk by means of fasteners, the free end facing the front of the base, and the engaging stop formed between the two ends corresponding to the detents on the miter lip to selectively engage one of the detents; a releasing rod rotatably mounted in the bottom of the turntable corresponding to the resilient biasing member and having an inside end with a keyway and an outside end extending out of the front of the cutting guide; an eccentric rotator attached to the inside end of the releasing rod and aligned with the free end of the resilient biasing member and having an axial hole and an eccentric portion, the axial hole having a key corresponding to the keyway axially defined in the eccentric rotator, and the inside end of the releasing rod extending through the axial hole with the key fitted in the keyway, and the eccentric portion being offset with the axial hole for pushing the free end of the resilient biasing member; and a tag attached to the outside end of the releasing rod to rotate the releasing rod; whereby the engaging stop disengages from the detents that allows the turning disk to be adjusted when the free end of the resilient biasing member is pushed by the eccentric portion when the eccentric rotator is rotated.