FRAME FOR MACHINES FOR CUTTING CERAMIC PIECES

Abstract

Disclosed is a frame for machines for cutting ceramic pieces, which comprises a support structure of a guide (G) for longitudinally moving a cutting head (C), which comprises: a central aluminium beam (1) and two lateral aluminium beams (2a, 2b), the beams having a tubular cross-section and being parallel and connected at opposite ends by means of respective steel end plates (3a, 3b); a detachable table formed by two aluminum profiles (4a, 4b) mounted on the central beam (1) and the lateral beams (2a, 2b); and steel corner pieces (5) attached to the support structure, there being mounted to the corner pieces respective pairs of foldable legs (6) provided with locking means (9) for locking in an unfolded position, respective reinforcing cross beams (10) for carrying shock-absorbing elements (11) and rear wheels (12) for transporting in a folded position.

Claims

1. A frame for machines for cutting ceramic pieces, which comprises a support structure of a guide for longitudinally moving a cutting head, and foldable legs, the frame comprising: a central aluminium beam and two lateral aluminium beams, the beams having a tubular cross-section and being parallel and connected at opposite ends by means of respective steel end plates, defining longitudinal gaps between said beams and end plates in the support structure, a detachable table formed by two aluminium profiles, provided with respective coplanar upper surfaces for supporting tiles to be cut, said profiles being mounted at their lateral ends on the central beam and on a corresponding lateral beam of the two lateral beams, superiorly closing at least part of the longitudinal gaps of the support structure; steel corner pieces attached to the support structure, there being mounted to the corner pieces: respective pairs of foldable legs provided with locking means with respect to said corner pieces in an unfolded position, and a pair of rear wheels for transporting the frame with the legs in a folded position.

2. The frame according to claim 1, further comprising reinforcing and stiffening crossbars for reinforcing and stiffening the support structure, attached at their ends to the corner pieces of front and rear ends of the frame, located transversely below the beams for carrying shock-absorbing elements.

3. The frame according to claim 1, wherein the corner pieces are screwed to threaded handrails housed in the corresponding lateral beams.

4. The frame according to claim 1, wherein the connection of the end plates with the ends of the beams of the structure comprises adjustment pins that reduce play and increase stiffness of the connection.

5. The frame according to claim 1, further comprising a removable water tank located interiorly at one of the ends of the frame and trays for collecting water, located in the longitudinal gaps of the frame, one on each side of the central beam, with an inclination in a longitudinal direction and which open onto the removable tank.

6. The frame according to claim 1, wherein the locking means for locking the legs in the unfolded position comprise a lever lock provided with a bracket articulated on an actuation lever attached to the corresponding leg by means of a rotation shaft, and a hook defined in the respective corner piece.

7. The frame according to claim 6, wherein the actuation lever of the lever lock comprises in an intermediate area retention means for retaining the bracket on the lever in an inoperative position.

8. The frame according to claim 7, wherein the retention means for retaining the bracket in the inoperative position consist of a magnet attached to the actuation lever.

9. The frame according to claim 6, further comprising a torsion spring mounted on the rotation shaft of the actuation lever and which tends to lower the actuation lever against the corresponding leg, preventing its rocking when the lever lock is unlocked.

10. The frame according to claim 1, further comprising at its front end a handle for gripping and transporting the frame supported on wheels and with the legs in the folded position.

11. The frame according to claim 1, wherein at least one of the legs comprises a height-adjustable foot at its lower end.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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:

[0026] FIG. 1 shows a perspective view of an exemplary embodiment of the frame for machines for cutting ceramics according to the invention, in a use position, with a tile cutter mounted on the frame.

[0027] FIG. 2 shows a perspective view of the frame of the invention, without the cutter and with the legs in the folded position.

[0028] FIG. 3 shows a perspective view of the frame of the invention with the legs in the folded position.

[0029] FIG. 4 shows a partial view of the frame of FIG. 3, along a vertical plane.

[0030] FIG. 5 shows a vertical section of one of the lateral beams of the frame, seen from one of its ends and in which the assembly of a corner piece can be seen on a threaded handrail housed inside said lateral beam.

[0031] FIG. 6 shows an elevational view of the front end of the frame sectioned by a vertical plane and an enlarged detail of one of the pins for connecting the corresponding steel end plate with the corresponding end of the beams.

[0032] FIG. 7 shows a schematic elevational view of the locking means for locking one of the legs, in the operative position, with the leg unfolded and the bracket attached to the corresponding hook.

[0033] FIG. 8 shows a view similar to FIG. 7 with the locking means for locking one of the legs in an inoperative position, with the leg unfolded and with the bracket released from the corresponding hook, lowered onto the lever and attached to same by means of a magnet.

[0034] FIG. 9 shows a schematic elevational view of the locking means for locking one of the legs in the inoperative position and with the leg lowered in a horizontal position.

[0035] FIG. 10 shows a schematic bottom perspective view of the rear end of the frame.

DETAILED DESCRIPTION

[0036] In the embodiment of FIG. 1, a guide (G) for longitudinally moving a cutting head (C) for cutting tiles or pieces for construction in general has been depicted on the frame of the invention.

[0037] The frame comprises a structure formed by a central beam (1) and two lateral beams (2a, 2b), all of the beams being made of aluminum and having a tubular section, spaced in the transverse direction and connected at opposite ends by means of, respectively, two front and rear steel end plates (3a, 3b).

[0038] The frame comprises a detachable table formed by two aluminum profiles (4a, 4b), each provided with coplanar upper surfaces for supporting the pieces or tiles to be cut.

[0039] Said profiles (4a, 4b) are mounted with their lateral ends on the central beam (1) and on the corresponding lateral beam (2a, 2b) of the structure, superiorly closing a part of the gaps defined between said beams (1, 2a, 2b) of the frame.

[0040] The frame comprises steel corner pieces (5), attached to the support structure, there being mounted to the corner pieces by means of respective rotation shafts (61) foldable legs (6) folding between an operative position, as shown in FIGS. 1 and 2, and an inoperative position, shown in FIG. 3.

[0041] One of the legs (6) comprises a height-adjustable foot (62) at its lower end, which allows the total height of said leg (6) to be changed, in order to achieve effective support of the four legs on the floor, even on uneven ground, which allows leveling and guaranteeing the stability of the machine during its use.

[0042] In FIG. 4, the tubular sections of the central beam (la) and lateral beams (2a, 2b) beams of the structure and the sections of the profiles (4, 4b) that make up the surface of the table can be observed.

[0043] In said FIG. 4, individual trays (7a, 7b) for collecting water, located in the longitudinal gaps of the frame, one on each side of the central beam (1), can also be observed. Said trays (7a, 7b) have a slight inclination in the longitudinal direction and open into a removable water tank (8), located interiorly at one of the ends of the frame and shown in FIG. 1.

[0044] As shown in FIG. 5, the corner pieces (5) are screwed to threaded handrails (51) housed in the corresponding lateral beams (2a, 2b).

[0045] FIG. 6 depicts the connection of one of the end plates (3a, 3b), in this case the front one, to the corresponding end of the beams (1, 2a, 2b).

[0046] In said connection, in addition to the corresponding screws (not referenced), there are adjustment pins (31) that reduce play in the pieces and increase the stiffness of the connection.

[0047] FIGS. 7, 8 and 9 show the locking means for locking the legs (6) with respect to the frame, made up in this example of a lever lock (9) comprising a bracket (91) articulated on an actuation lever (92) attached to the corresponding leg (6) by means of a rotation shaft (93), and a hook (94) defined in the respective corner piece (5).

[0048] Specifically in FIG. 7, one of the legs (6) has been shown unfolded in an operative position and attached in said position by the lever lock (9), with the bracket (91) attached to the hook (94).

[0049] In FIG. 8, the lever lock (9) is depicted as unlocked, with the bracket (91) released on the hook (94) and lowered onto the actuation lever (92), and the leg (6) in the unfolded position. Once the lock is unlocked, the leg (6) can then be folded down towards the inoperative horizontal position shown in FIG. 9.

[0050] As shown in FIGS. 7 and 8, the actuation lever (92) comprises in an intermediate area retention means, represented in this case by a magnet (95), for holding the bracket (91) in an inoperative position and lowered onto said actuation lever (92).

[0051] Mounted on the rotation shaft (93) there is a torsion spring (96) which tends to lower the actuation lever (92) against the corresponding leg (6), preventing said actuation lever from swinging uncontrollably when the lock is unlocked and from remaining hanging when the legs (6) are in the folded position shown in FIGS. 3 and 9.

[0052] In the corner pieces (5) corresponding to the front and rear ends of the frame, there are mounted reinforcing and stiffening crossbars (10) for reinforcing and stiffening the structure, similar to the one shown in FIG. 10, located transversally below the beams (1, 2a, 2b) for carrying shock-absorbing elements (11).

[0053] In the corner pieces (5) of the rear end of the frame, depicted in said FIG. 10, there is also mounted a pair of rear wheels (12) for transporting the frame with the legs (6) in the folded position, gripping the frame by means of a handle (32) attached to the front end plate (3a) and visible in FIGS. 2 and 6.

[0054] 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.