Cutting device for manual ceramic-cutting machines

Patent metadata

Field	Value
Publication number	US-12502807-B2
Application number	US-202118260157-A
Country	US
Kind code	B2
Filing date	Nov 12, 2021
Priority date	Nov 12, 2021
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

The invention relates to a cutting device for manual ceramic-cutting machines, which comprises a support (1) provided with: a vertical hole (11) that receives a first end of a bar (21) of a cutting tool (2), the front face (26) of said bar being provided with at least one row of recesses (27) spaced apart vertically; and a horizontal hole (12) that receives a handle (3) and a stem (4) capable of moving longitudinally between a front position for locking the cutting tool (2) and a rear position for releasing the cutting tool; the stem (4) comprising, at its front end, at least one projection (42) which, in the front position for locking the cutting tool, is accommodated in one of the recesses (27) on the front face (26) of the bar (21) of the cutting tool (2).

First claim

The invention claimed is:

1 . A cutting device for manual ceramic-cutting machines, comprising:
a support provided with a horizontal hole with one threaded rear section on which a handle is mounted and a vertical hole that receives a cutting tool, the cutting tool comprising a bar provided with: a first end accommodated through the vertical hole of the support, a second end carrying a cutting wheel for marking a break line in ceramic pieces to be cut and a front face facing the horizontal hole of the support; a stem housed in the horizontal hole of the support capable of longitudinal movement between: a front position for locking the cutting tool and a rear position for releasing the cutting tool; a front face of the bar of the cutting tool comprises at least one row of adjacent recesses spaced apart vertically, and a front end of the stem comprises at least one projection which, in the front position for locking the cutting tool by means of the stem, the at least one projection is accommodated in one of the recesses of the front face of the bar of the cutting tool; wherein the stem comprises an intermediate thickening arranged between a front stop of the support and an annular stop, the annular stop being threadedly mounted into the threaded rear section of the support to adjust the position of the annular stop; and wherein the cutting device further comprises a spring, the spring arranged inside the horizontal hole of the support and configured to push the stem towards the front position to lock the cutting tool and to push the stem towards the rear position to release the cutting tool; wherein a height position of the cutting tool is configured to be adjusted by the handle moving towards the rear section such that the cutting tool moves vertically, as the spring maintains pressure of the at least one projection of the front end of the stem against the bar, and the stem undergoes alternating forward and backward movements as the at least one projection jumps over successive front recesses of the cutting tool bar when subjected to pushing.

2 . The device according to claim 1 , wherein the stem comprises a rear end facing a front end of the handle, and said handle is mounted on the support capable of movement between: a rear position which allows a backward movement of the stem, and a front position in which said handle acts against the rear end of the stem preventing the backward movement and fixing the stem in the front position for locking the cutting tool.

3 . The device according to claim 1 , wherein a first end of the bar of the cutting tool comprises a ramp inclined towards the front face of the bar.

4 . The device according to claim 1 , wherein the spring for pushing the stem towards the front position is mounted between the intermediate thickening of the stem and the annular stop.

5 . The device according to claim 1 , wherein the spring for pushing the stem towards the rear position is mounted between the front stop of the support and the intermediate thickening of the stem.

6 . The device according to claim 1 , wherein the annular stop, adjustable in position, comprises an interior hole for longitudinal guidance of the rear end of the stem.

7 . The device according to claim 1 , wherein the adjacent recesses spaced apart vertically have a length that coincides with the width of the front face of the bar facing the horizontal hole of the support.

8 . The device according to claim 1 , wherein the stem has lateral planes parallel to other lateral planes defined in a passage of the support that connects the horizontal hole with the vertical hole and through this passage of the support said stem accesses the interior of the vertical hole.

Assignees

• Boada Germans Sa

Inventors

• Quesada Barbero Juan Antonio
• Martinez Galindo David

Classifications

• B28D1/225 Primary

  for scoring or breaking, e.g. tiles · CPC title