CUTTING DEVICE FOR MANUAL CERAMIC CUTTERS

Abstract

The present invention relates to a cutting device for manual ceramic cutters. Disclosed is a cutting device for manual ceramic cutters, which comprises a support (1) provided with a vertical hole (11) for mounting a cutting tool (2), and a horizontal hole (12) in which are mounted a handle (3) and a rod (4) for attaching the cutting tool (2). The cutting tool (2) comprises a bar (21) that has at a first end (22) an inclined ramp (27) that facilitates the initial mounting thereof in the support (1), moving the rod (4) backwards and compressing a spring (5) for pushing the rod (4). The front face of the bar (21) comprises a longitudinal groove (26), and the rod (4) comprises a front appendage (42) accommodated in the longitudinal groove (26), immobilising the cutting tool in the support when pressed by the handle (3).

Claims

1. A cutting device for manual ceramic cutters, comprising: a support provided with a vertical hole in which a cutting tool is accommodated, and a horizontal hole with at least a rear threaded segment in which a handle is mounted capable of movement; wherein said cutting tool comprises 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 frontal face facing the horizontal hole of the support; wherein the bar of the cutting tool comprises a longitudinal groove on said frontal face, and wherein the cutting device further comprises: a rod mounted in the horizontal hole of the support capable of longitudinal movement and having at its front end a frontal appendage located inside the vertical hole of the support and which is accommodated in the longitudinal groove of the cutting tool, immobilising said cutting tool when said rod is moved by the handle towards a front position for locking the cutting tool; and a spring configured to act against the rod, and move towards a front position for locking the cutting tool.

2. The cutting device according to claim 1, wherein the bar of the cutting tool comprises at its first end a ramp, inclined towards its frontal face, which acts against the frontal appendage of the rod during insertion of the first end of the cutting tool into the vertical hole of the support and causes its backward movement until said frontal appendage is accommodated in the longitudinal groove of the cutting tool.

3. (canceled)

4. The cutting device according to claim 1, wherein the spring is mounted between an intermediate stop of the rod and an annular stop, having an adjustable position, threaded mounted on the rear threaded segment of the support.

5. The device according to claim 1, wherein the support comprises a front stop facing an intermediate stop of the rod, and the contact of which determines an extreme forward position of the rod with respect to the support.

6. The device according to claim 1, wherein the frontal appendage of the rod and the longitudinal groove of the cutting tool exhibit converging vertical walls, having same inclinations.

7. The device according to claim 6, wherein the frontal appendage of the rod and the longitudinal groove of the frontal face of the bar of the cutting tool exhibit a triangular or isosceles trapezoidal cross section.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0026] As a complement to the description provided herein, and for the purpose of helping to make the features of the invention more readily understandable, the present specification is accompanied by a set of drawings which, by way of illustration and not limitation, represent the following:

[0027] FIG. 1 shows a manual ceramic cutting machine, carrying the cutting device object of the invention.

[0028] FIG. 2 shows a perspective view of the cutting device of the invention in which the rotation shaft of the support with respect to the runner for longitudinal movement on the guides of the cutting machine has been removed.

[0029] FIG. 3 shows an elevation view of the cutting device, vertically cross-sectioned, during the initial mounting of the cutting tool in the vertical hole of the support, with the handle in a rear position for releasing the cutting tool, and wherein the cutting tool acts with the ramp of its first end against the frontal appendage of the rod to cause its backward movement and allow the mounting of the cutting tool on the support.

[0030] FIG. 4 shows a perspective view of an exemplary embodiment of the rod.

[0031] FIG. 5 shows a view similar to FIG. 3, with the cutting tool mounted on the support and the handle in the rear position for releasing said cutting tool.

[0032] FIG. 6 shows a view similar to FIG. 5, once the handle has been moved towards a front position for locking the cutting tool, in which the rod presses against said cutting tool.

[0033] FIG. 7 shows a plan view of an embodiment variant of the device of the invention with the rod and handle in the same position as FIG. 6, in which the bar of the cutting tool and the vertical hole comprise additional and respectively longitudinal, lateral and rear channels, and radial appendages accommodated in said longitudinal channels.

DETAILED DESCRIPTION

[0034] FIG. 1 shows the cutting device of the invention mounted by means of a horizontal shaft (E) of rotation on a runner (C) that can be moved along longitudinal guides (G) of a manual ceramic cutter.

[0035] FIG. 2 shows the cutting device of the invention isolated and without the horizontal shaft (E) of rotation to simplify the drawing and wherein the support (1), the cutting tool (2) mounted on the support (1) and a front portion of the handle (3) for attaching and actuating the cutting tool can be observed.

[0036] The cutting tool (2) comprises a bar (21) provided with: a first end (22), a second end (23) carrying a cutting wheel (24) for marking a break line on the ceramic pieces and a frontal face (25). The cutting tool (2) comprises on the frontal face (25) a longitudinal groove (26) and on the first end of the bar (21) a ramp (27) inclined towards the frontal face (25).

[0037] FIG. 3 shows that the support (1) comprises a vertical hole (11) for mounting the cutting tool (2), and a horizontal hole (12) with a rear threaded segment (13) for threaded mounting of the annular stop (6) and of the front end of the handle (3); the rod (4) and the spring (5) for pushing the rod (4) being mounted in front of the annular stop (6).

[0038] As shown in FIG. 4, the rod (4) comprises: a rear end (41) facing the handle (3); a frontal appendage (42), an intermediate stop (43) and lateral planes (44).

[0039] Going back to FIG. 3, the spring (5) acts with the opposite ends against the annular stop (6) and against the intermediate stop (43) of the rod (4) moving same towards a front position. In said front position, the intermediate stop (43) of the rod makes contact with a front stop (14) of the horizontal hole (12), and the frontal appendage (42) is located in the most forward position inside the vertical hole (11) for mounting the cutting tool (2).

[0040] As shown in FIG. 3, when inserting the first end (22) of the bar of the cutting tool (2) in the vertical hole (11) of the support (1), said bar (21) acts with the ramp (27) against the frontal appendage (42) of the rod (4) causing its backward movement, which allows the bar (21) to be inserted and moved vertically in the vertical hole (11), said frontal appendage (42) being accommodated in the longitudinal groove (26) of the cutting tool (2) as shown in FIG. 5.

[0041] In this position, the rod (4) exerts pressure against the longitudinal groove (26) of the cutting tool (2), due to the push of the spring (5), although the handle is in a rear position, spaced apart from the rod (4). This pressure is sufficient to prevent the cutting tool (2) from falling under its own weight, however allowing the cutting tool (2) to be manually moved in the vertical direction to place same at the desired height.

[0042] Once the cutting tool (2) has been positioned at the chosen height, it is sufficient to thread the handle (3) into the rear threaded segment (13) of the support (1) so that said handle presses the rod (4) against the cutting tool (2), locking same in the chosen position, as shown in FIG. 6.

[0043] To prevent its rotation inside the support (1), the rod (4) has facing lateral planes (44) that are parallel to other lateral planes (15), referenced in FIG. 7 and defined in a hole that connects the horizontal hole (12) with the vertical hole (11) of the support and through which said rod (4) accesses the inside of the vertical hole (11) to act with its frontal appendage (42) against the longitudinal groove (26) of the cutting tool (2).

[0044] In the exemplary embodiment shown, both the frontal appendage (42) of the rod (4) and the longitudinal groove (26) of the cutting tool (2) exhibit parallel vertical surfaces that converge towards the front end of the frontal appendage (42) of the rod (4) and towards the bottom of the longitudinal groove (26) of the cutting tool (2), and which exhibit the same inclinations. In the exemplary embodiment shown, the frontal appendage (42) of the rod and the longitudinal groove (26) of the front face of the bar of the cutting tool exhibit a triangular cross section.

[0045] In the embodiment shown in FIG. 7, the bar (21) additionally comprises on the lateral and rear faces longitudinal channels (28) for receiving radial appendages (16) defined in the vertical hole (11) of the support (1) and that collaborate with the longitudinal groove (26) and with the frontal appendage (42) of the rod (4) in the centring and alignment of the cutting tool (2).

[0046] Having sufficiently described the nature of the invention, in addition to a preferred exemplary embodiment, it is hereby stated for the relevant purposes that the materials, shape, size and layout of the described elements may be modified, provided that it does not imply altering the essential features of the invention claimed below.