ES1092980U - Machine for cutting large size tiles (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Machine for cutting large tiles, of the type comprising a guide (1) for supporting above the tile (5) and a carriage (7), sliding along said guide (1), characterized by the fact of comprising a device (30) for adjusting the incision force comprising a lever (6), hinged on the carriage (7) in correspondence of a fulcrum (13), provided with at least one housing (22, 22'), apt to receive a handle (14, 14') for the application of the pushing force by the operator, and of an incision wheel (16), said housing (22) and said wheel (16) being arranged vertically offset. (Machine-translation by Google Translate, not legally binding)

Description

MACHINE FOR CUTTING LARGE SIZE TILES.

The present invention relates to a machine for cutting large tiles (or tiles) comprising a device for adjusting the incision force.

The machines for cutting tiles or tiles similar to that of the present invention are of the type that include a guide for moving a carriage where a tool is housed whose function is to make an incision in tiles; said guide can be fixed to the tile by means of suction cups arranged in predetermined positions. Since the length of tiles of this type is close to three meters, it is convenient to fix the

15 cut rather than put the tiles on the same machine. The machines that are currently on the market are composed of an extruded profile provided with some suction cups to be arranged in pre-established positions, at constant intervals along the profile, for fixing to the tile to be affected. Above

20 this extrudate moves a carriage provided with a hole perpendicular to the surface of said tile; In this hole there is a cylindrical handle provided at the end of an incision wheel. Synthetically: the operator supports the extrudate on the tile, fixes it with the suction cups that effectively rest on the

25, insert the handle provided with a wheel in the hole of the carriage and, pressing with the wheel on the tile, make the incision in the same guided tile, to define the cutting line, by the car. This type of machines has a drawback, which resides

30 in the fact that the incision force is always and exclusively equal to the force that the operator manages to effect in a vertical line. Therefore, there is no possibility of modifying the intensity of the incision force depending on the type of tile to be cut. On the other hand, the fixed position of the suction cups can return

It is difficult to achieve its firm fixation to the tile, especially if the shape of the latter is irregular.

The purpose of the present invention, therefore, is to eliminate the aforementioned inconvenience.

The present invention, characterized by the appended claims, solves the problem of adjusting the incision force by accentuating it to obtain a greater penetration in the tile or reducing it to obtain a greater fluidity of movement in the case of incision of surfaces that present reliefs or irregularities.

Synthetically, to adjust the incision force, the incision wheel has been linked to a hinged lever in the carriage: whereby, the operator can decide where to apply the force on the lever, moving away from the fulcrum for a greater depth of incision or approaching the fulcrum to increase the fluidity of displacement during the incision.

Also, the freedom to move the suction cups offers the possibility of using the machine to work tiles in any way.

Other advantages and features of this invention will become even more apparent in the detailed description that follows, which refers to the accompanying drawings that represent an exemplary and therefore non-limiting embodiment of the present invention, in which:

Figure 1 is a partial perspective view from above of the

present invention;

Figure 2 is a side view of the present invention;

Figure 3 is a perspective view from below of a

detail of the present invention;

Figure 4 shows the same detail shown in Figure 3 in

its position of use;

Figure 5 is a perspective view from above of the

present invention in its position of use;

Figure 6 is a perspective view from below of the

present invention

As can be seen in the figures, the present invention relates to a machine for cutting large tiles, comprising a guide (1) for resting on the tile (5), a carriage (7), sliding along said guide (1), and a device (30) for adjusting the incision force. Such device (30) comprises a lever (6), hinged to the carriage (7) in correspondence of a fulcrum (13), provided with at least one housing (22, 22 '), suitable to accommodate a handle (14, 14' ) for the application of a pushing force by the operator, and of an incision wheel (16), said housing (22) and said wheel (16) being arranged vertically misaligned. Thus, in effect, by applying the same force, it is possible to increase or reduce the pressure exerted by the wheel (16) on the surface of the tile (5), whereby it is possible to decide, alternatively, to increase the depth of incision

or the fluidity of the incision.

To fix the guide (1) to the tile (5), some suction cups (2, 2 ', 2 ”) with an arm (3, 3', 3") are used, the shape of which is complementary to an undercut (4) obtained in the guide (1), which forces the guide (1) against the tile (5) and holds them together, along the guide (1) a carriage (7) is provided with two pairs of cylindrical bearings (8 and 8 ') and of a ribbed bearing (9). The pairs of cylindrical bearings (8 and 8') move along two flat tracks (11 and 11 ') respectively, while the ribbed bearing (9) moves along a cylindrical track (10); this configuration forces the carriage (7) to move along the guide (1) maintaining a constant angle with respect to the surface of the tile (5).

In figure 1, with the lever (6) shown transparent and the suction cup (2) removed from its housing, it can be seen that the fact of having linked the wheel (16) and the handle (14, 14 ') to the fulcrum ( 13) of the lever (6) ensures that the axis of the wheel (20) is always perpendicular to the axis of the guide (1). On machines belonging to the known technique, on the contrary, the wheel (16), held by the hand by the operator, is not perfectly oriented and, therefore, always creates an incision

curvilinear, due to the flexibility of the incision guide and the poor precision between the body of the incision handle and the housing hole.

The two pairs of cylindrical bearings (8 and 8 ') are arranged inclined to each other by approximately 60 °. These bearings are placed in a fixed position with respect to the carriage (7), while the ribbed bearing (9) is placed in an eccentric shaft (12). This eccentric shaft (12) allows the play between the guide (1) and the cylindrical bearing pairs (8 and 8 ') and the grooved bearing (9) to be canceled.

The lever (6) is hinged on the fulcrum (13) to the carriage (7). In an intermediate position is a spring (15), whose task is to keep the lever (6) raised with respect to the carriage (7).

In a preferred embodiment, represented in the figures, the machine (40) comprises a pair of housings (22 and 22 '), arranged on opposite sides with respect to the vertical line to the incision wheel (16), so to allow an operator to apply a variable thrust force during the incision of a tile (5), placing the handle (14, 14 ') on one or the other of the two housings (22 and 22').

In fact, if the handle (14) is in the housing indicated with the number (22), whereby the distance (Bp1) between the fulcrum (13) and the line of application of the pushing force (P1) a the handle (14) is greater than the distance (Br) between the fulcrum (13) and the vertical line to the incision wheel (16), an advantageous second-gen lever is configured, where the power arm is greater than the resistance arm, therefore the pushing force (P1) of the operator on the handle (14) will increase and the wheel

(16) the surface of the tile (5) will have a greater impact. If, on the contrary, the handle (14 ') is in the other housing (22'), whereby the distance (Bp2) between the fulcrum (13) and the line of application of the pushing force (P2) to the handle (14 ') is less than the distance (Br) between the fulcrum (13) and the vertical line to the incision wheel (16), then a third-gen disadvantageous lever is configured, where the power arm is smaller than the resistance arm (Br), therefore the pushing force (P2) of the operator on the handle (14 ') will be reduced, favoring a greater incision fluidity, so as to increase the fluidity of movement of the wheel ( 16) and facilitating the incision of

5 tiles (5) with a rough surface.

Figure 5 shows the machine and its location with respect to the tile (5). It is important to note that, since the suction cups (2, 2 ', 2 ”) can move along the guide (1), they can be precisely located at the points

10 fundamentals, which are the tips of the tile (5). This location is more important when the handle (14) is placed in the designated housing with the number (22), because in the fulcrum (13) a force (R1) is created that tends to move the machine away from the tile (5) .

15 Figure 6 shows the machine from below, not supported by the tile (5) with the lever (6) displayed in transparent mode. This drawing shows a recess (17) predisposed for a non-slip mat (19), essential for using the machine without suction cups (2, 2 ', 2 ”).

Claims (9)

1.- Machine for cutting large-sized tiles, of the type that 5 comprises a guide (1) to support above the tile (5) and a carriage (7), sliding along said guide (1), characterized by comprising a device (30) for adjusting the force of incision comprising a lever (6), hinged on the carriage (7) in correspondence of a fulcrum (13), provided with at least one 10 housing (22, 22 '), suitable to accommodate a handle (14, 14') for the application of the pushing force by the operator, and an incision wheel (16), said housing (22) and said caster (16) being arranged vertically misaligned. Machine according to claim 1, characterized in that the device (30) comprises a spring (15) sandwiched between the carriage (7) and the lever (6), suitable for maintaining the incision wheel (16) away from the tile (5) during movements that do not contemplate an incision operation. Machine according to claim 1, characterized in that the housing (22) for the handle (14) is located so that the distance (Bp1) between the fulcrum (13) and the straight line of application of the thrust force (P1) on the handle (14) is greater than 25 the distance (Br) between the fulcrum (13) and the vertical line to the incision wheel (16), so as to increase the incision force (R) of the wheel (16) on the surface of the tile (5) ). 4. Machine according to claim 1, characterized by the fact 30 that the housing (22 ') for the handle (14') is located so that the distance (Bp2) between the fulcrum (13) and the line of application of the pushing force (P2) on the handle (14 ' ) is less than the distance (Br) between the fulcrum (13) and the vertical line to the incision wheel (16), so as to increase the fluidity of movement of the wheel (16), thus facilitating the incision of tiles ( 5) With a rough surface. 5. Machine according to claim 1, characterized by the fact 5 that the device (30) comprises at least one pair of housings (22, 22 '), arranged on opposite sides with respect to the vertical line to the incision wheel (16), so as to allow an operator to apply a force of variable thrust during the incision of a tile (5). 6. Machine according to claim 1, characterized in that it comprises at least two mobile suction cups (2, 2 ’) along the guide (1), so that they can be located in a discretionary manner. Machine according to claim 6, characterized in that it comprises means of linking (3, 4) between the suction cups (2, 2 ’) and the guide (1). 8. Machine according to claim 7, characterized by the fact 20 that the linking means (3, 4) comprise an arm (3) integral with the hinge (2, 2 ’) and an undercut (4) obtained in the guide (1) whose forms are reciprocally complementary. 9. Machine according to claim 8, characterized by the fact 25 that the arm (3) comprises an engagement point (18) formed in L, to allow only the longitudinal displacement of the suction cups (2, 2 ') along the undercut (4) of the guide (1). 10. Machine according to claim 1, characterized by the fact 30 that the carriage (7), which carries the lever (6), comprises two pairs of cylindrical bearings (8 and 8 ') with its axis of rotation arranged at approximately 30 ° with respect to the axis of the fulcrum (13), so of counteracting the forces (R1-R2) transmitted from the lever (6) to the fulcrum (13) and then to the guide (1). 11. Machine according to claim 10, characterized in that it comprises at least one ribbed bearing (9), facing the cylindrical bearing pairs (8 and 8 '), with the function of reducing the 5 carriage rotation (7) along the longitudinal axis (21) of the guide (1). 12. Machine according to claim 11, characterized in that it comprises at least one eccentric shaft (12) with the function of keeping the cylindrical bearing pairs (8 and 8 ') always in 10 contact with the flat tracks (11 and 11 '). 13. Machine according to claim 6, characterized in that it comprises a non-slip mat (19) fixed in the recess (17) of the guide (1) that rests on the tile (5), suitable for allowing the 15 use of the machine without suction cups (2, 2 ').