CUTTING AND SEPARATION HEAD FOR MANUAL CERAMICS CUTTERS

Abstract

A cutting and separation head for manual ceramic cutters, including a body that carries a grip handle and a cutting tool, mounted on movable supports on longitudinal guides of the cutter, and able to rotate with respect to a first transverse rotary shaft; a separator provided with a foot, a class 1 lever, and a first coupling element in the separator that is couplable to a second coupling element in the body of the head; and a cam for releasing the first and second coupling elements, the cam being mounted on the body and relatively rotatable between a first position and a second position.

Claims

1-4. (canceled)

5. A cutting and separation head for manual ceramic cutters comprising: movable supports on longitudinal guides of a cutter; a body mounted on supports that can be rotably moved with respect to a first transverse rotary shaft, a grip handle secured to a first end of the body, a cutting tool and a separator provided with a support foot on the ceramic parts to be separated, further comprising: a class 1 lever mounted on a second transverse rotary shaft, the lever of which has a first end on which the foot of the separator is articulated and a second, opposite end; a first coupling element articulated on the second end of the lever; at least one spring that acts on the first coupling element and tends to rotate it towards a coupling position with a second coupling element defined in the body of the head, automatically establishing coupling of the first coupling element to the second coupling element and the separator being disposed in an operative position, when the body of the head is folded in an ascending direction, exceeding a first angle of inclination with respect to the horizontal and is maintained at an inclination smaller than the second larger angle; and a cam for releasing the first and second coupling elements, the cam being mounted on the body and relatively rotatable between a first position and a second position, wherein the cam automatically acts on the first coupling element, releasing it from the second coupling element when the body is folded in an ascending direction and reaches the second angle, maintains the first coupling element away from the path of the second coupling element when the body of the head is folded in a descending direction and, and automatically releases the first coupling element, the separator being disposed in an inoperative position when the body of the head reaches an inclination smaller than the first angle.

6. The head according to claim 5, wherein the cam is mounted on the first rotary shaft of the body and limited with relative rotation with respect to the body along the path of a stop attached to the body, along the inside of a curved slot defined in the cam.

7. The head according to claim 5, wherein the second larger angle is greater than 70.

8. The head according to claim 7, wherein the second larger angle is 105.

Description

DESCRIPTION OF THE FIGURES

[0021] As a complement to the description provided herein, and for the purpose of helping to make the characteristics 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:

[0022] FIG. 1 shows a schematic perspective view of an exemplary embodiment of the cutting and separation head, according to the invention, applied to a manual ceramic cutter.

[0023] FIG. 2 shows a perspective view of the cutting and separation head in which the first coupling element is formed by a stirrup and the second coupling element is formed by a tooth defined in the body of the head.

[0024] FIG. 3 shows a profile view of the head in which one of the movable supports and the corresponding longitudinal guide of the cutter has been removed, the head in an operative cutting position being able to be observed.

[0025] FIGS. 4, 5, 6 and 7 show profile views of the cutting and separation head in different relative positions of the first and second coupling element.

PREFERRED EMBODIMENT OF THE INVENTION

[0026] In FIG. 1, an exemplary embodiment of the cutting and separating head (1) of ceramic parts mounted on a manual ceramic cutter (C) that can be moved along longitudinal guides disposed in parallel above the base of the cutter can be observed.

[0027] In the example shown in FIG. 2, an exemplary embodiment of the head (1) that comprises supports (2) on its sides, which in this case are made up of runners for the movement thereof along the guides of the cutter and a body (3) mounted on the supports (2) and which can be rotated with respect to a first transverse shaft (4), can be observed. The body (3) has a handle (5) secured to a first end thereof.

[0028] As can be observed more clearly in FIGS. 3 to 7, the body (3) has on the lower end thereof a cutting tool (6) for longitudinal scratching and to define a cutting line on a ceramic part (P) positioned on the base of the cutter.

[0029] The head (1) additionally has a separator for the ceramic parts (P) to be separated along the scored line defined by the cutting tool (6).

[0030] This separator comprises a foot (7) intended to press the ceramic part (P) to be cut in order to produce the separation thereof, said foot (7) being articulated by means of a rotary shaft on a first end of a class 1 lever (8) mounted on the movable supports (2) by means of a second transverse rotary shaft (9).

[0031] A first coupling element (10) is mounted on the second end of the lever (8) which, in this case, has a stirrup-like configuration, which is pushed by a spring (11), shown in FIGS. 2 and 3, and which tends to push it against a second end of the body (3) in which a second coupling element (12) is defined, in this case formed by a tooth with two different coupling points of the stirrup forming the first coupling element (10).

[0032] A cam (13) that is rotatable with respect to the body (3) between a first position and a second position determined by the path of a stop (14) attached to the body (3), along the inside of a curved slot (15) defined in the cam (13), is mounted on the body (3) and specifically on the same first rotary shaft (4).

[0033] In the position shown in FIG. 3, the first coupling element (10) is under the second coupling element (12) and therefore released from the same, which enables actuation on the handle (5) so that the body (3) rotates on the first transverse shaft (4) and the cutting tool (6) comes in contact with the ceramic part (P) to be scored, carrying out the scoring of the same by moving the head (1) along the guides of the cutter (C). Therefore, in this FIG. 3, the head (1) is in a cutting position.

[0034] As can be observed in FIG. 4, in order to dispose the head (1) in an operative position to separate the ceramic part (P), one only needs to fold the body (3) of the head (1) in an ascending direction so that it reaches a first angle (a) of inclination above the horizontal, in which the coupling of the stirrup or the first coupling element (10) with one of the teeth of the second coupling element (12) is established.

[0035] Once this position is reached, when applying a descending force on the handle, the force is transmitted with a greater intensity to the foot (7) of the separator by means of the first coupling element (10) and the lever (8).

[0036] By changing the coupling tooth or point of the first coupling element (10) with respect to the second coupling element (12), a greater or lesser multiplication of the force applied to the handle (5) and transmitted to the foot (7) of the separator is achieved.

[0037] Coupling of the first coupling element (10) to the second coupling element (12) is maintained even if the handle is raised or even if it exceeds the vertical position, as shown in FIG. 5.

[0038] To release the separator and return the head to the cutting position, one only needs to increase the folding angle of the body (3) in an ascending direction until it reaches a second angle (b), shown in FIG. 6, and in which the cam (13) acts on the first coupling element (10), releasing it from the tooth of the second coupling element (12). In an embodiment of the invention, the aforementioned angle (b) is greater than 90, and it is 105 in a specific example.

[0039] Once this position is reached, one only needs to act on the handle (5) to fold the body (3) of the head (1) in the opposite direction, in other words, in a descending direction, maintaining the cam (13) with the first coupling element (10) away from the path of the second coupling element (12), as observed in FIG. 7.

[0040] This cam (13) automatically releases the first coupling element (10), the separator being in the non-operating position shown in FIG. 3, when the body (3) of the head reaches an inclination smaller than the first angle (a), the head (1) returning to the cutting position.

[0041] Having sufficiently described the nature of the invention, in addition to an example of a preferred 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 characteristics of the invention claimed below.