US 5,169,045 AGranted

Manually-operated tile cutter

OwnerWun-Hui Liuinventor

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Abstract

A manually-operated tile cutter comprises mainly a base, a measuring piece, and a guiding bar. The base is provided at one end thereof with a stopper consisting of a stopper face perpendicular to the cutting direction and of a guide slot parallel to the stopper face. The measuring piece is composed of a length measuring portion and an angle measuring portion disposed at one end of the length measuring portion. The length measuring portoin is disposed slidably in the guide slot. The guiding bar is pivotally arranged on the angle measuring portion so as to point out on the angle measuring portion the angle formed by the guiding bar and the length measuring portion. The cutter therefore guides and holds the tile intended to be cut in a vertical manner. The guiding bar can be also used to point out the angle and to support the tile when the cutter is doing an angular cutting of the tile.

A manually-operated tile cutter comprising a base, a rigid protruded strip disposed on said base, an elastic loading surface disposed on both sides of said protruded strip, two guide rods mounted on said base in such a manner that they are parallel to said protruded strip, a drawing platform fitting slidably over each of said guide rods, a cutter with top end and bottom end arranged pivotally on said drawing platform, an operating lever fastened to said top end of said cutter, a rotary knife pivoted to said bottom end of said cutter, and a press piece attached to said cutter adjacent said rotary knife in such a manner that it crosses over said protruded strip, said tile cutter being characterized in that it further comprises:

(a) an elongated stopper disposed at one end of said base in such manner that its longitudinal axis is normal to said protruded strip and that it has a stopper face higher than said elastic loading surface, said stopper comprising a guide slot parallel to the longitudinal axis thereof;
(b) a measuring piece provided with a length measuring portion disposed slidably in said guide slot and with an angle measuring portion with angle scale disposed at one end of said angle measuring portion;
(c) a guiding bar pivoted to a curvature center of said angle scale of said angle measuring portion, said guiding bar having a length scale;
(d) said angle measuring portion and said length measuring portion being made integrally into a unitary body;
and
(e) wherein said angle measuring portion is composed of a bowlike curved slot having said angle scale on one side thereof, with an extension line of a zero degree position being parallel to the longitudinal axis of said length measuring portion;
(f) wherein said guiding bar is provided with a pointer;
and
(g) wherein said guiding bar is set in a fixed position by means of a first positioning bolt passing through said bowlike curved slot after a predetermined rotation of said pointer of said guiding bar around said curvature center.

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Abstract

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