Patent ID: 6244794
Filing Date: 2001-06-12
Classification: B23B,Y10T

Abstract:
A clamp-type doweling jig comprising in combination:guide block means;alignment means attached to one lateral surface of said guide block means; andclamping means attached to an opposite lateral surface of said guide block means;said guide block means including a block in a parallelepiped form, with top, bottom, lateral, front and back surfaces, and in said block several evenly spaced bores are aligned and extend through, said bores being perpendicularly disposed with respect to said top and bottom surfaces, and the distance between one end of said block, which is delimited by said front surface, and the first of said several bores, is equal to the distance between another other end of said block, which is delimited by said back surface, and the last of several bores, and in each of said several bores a drill guide is firmly affixed, so that its lower end is flush with said bottom surface, and on both sides of said block, for attaching said alignment means and, respectively, said clamping means, two threaded means are permanently fastened, each threaded means having means for assembling, with minimum clearance, said aligning and clamping means, and a threaded portion to which a knob with a threaded hole is screwed, and said aligning means incorporates an attachment plate for fastening to one of said lateral surfaces of said block and an alignment jaw extending downwards from said attachment plate and inwards towards a center of said block, two through holes provided in said attachment plate are so chosen, that said attachment plate is moveable on said means for assembling, with minimal clearance, said aligning means, said aligning jaw incorporating a foot-protrusion which extends partially under said bottom surface, at right angle relative to said attachment plate, so that an upper face of said foot-protrusion mates with said bottom surface and runs the length of it, and a reference plane of said foot-protrusion is parallel to said lateral surfaces and perpendicular to said bottom surface, and said clamping means comprises a joining plate continued by a clamp plate, said joining and clamp plates being situated in parallel planes, and said joining plate mates with one of said lateral surfaces which is adjacent to it, while said clamp plate is retracted with respect to said joining plate and is provided with two threaded holes in which screws for clamping are inserted.