Groove forming apparatus

Details Groove forming apparatus Groove forming apparatus

1998-02-02

1999-07-13

Bray, W. Donald

Woodworking

Shaping machine

Grooving machine

144137, 1441441, 1441545, 409137, 409182, B27G 506, B27C 502

Patent

active

059212985

ABSTRACT:
There is provided a groove forming apparatus which permits easy formation of a curved groove such as a semicircular groove or the like, resulting in high degree of freedom in working. The apparatus comprises a trimmer 1 provided with a chuck 11 capable of coaxially supporting a straight bit 17 and with a rotation mechanism 12 arranged behind the chuck 11, for rotating the chuck 11 around an axial line thereof; and a supporting body 2 arranged ahead of the chuck 11 and having an abutment surface 37 with which a work W is to be in contact, for supporting the trimmer 1 so as to be movable back and forth in a direction perpendicular to the abutment surface 37 and swingable along a plane perpendicular thereto. A tracing pin 33 movable together with the trimmer 1 is moved along the groove portion 32 formed on the gauge plate 31 of the supporting body 2. The tip end 17a of the bit 17 attached to the chuck 11 is moved along a curve corresponding to the shape of the groove to be formed on the work W, to form the semi-circular or semi-elliptic groove on the work W.

REFERENCES:
patent: 4561478 (1985-12-01), Fields
patent: 4909680 (1990-03-01), Wolff
patent: 4947908 (1990-08-01), O'Banion et al.
patent: 5697415 (1997-12-01), Kozyrski et al.

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