Pliers for tightening parts for levelling cladding tiles

Abstract

Pliers for tightening parts for levelling cladding tiles, including: a first arm (1) with a handle (10) and a guide bar (11); a second arm (2) with a handle (20) and a contact surface (21) with a levelling wedge; a rotation shaft (4); and a supporting stop (3) comprising: a passage (31) for assembly in the guide bar; a shaft (32) assembled in a longitudinal slot (12) of the guide bar for the longitudinal movement of the supporting stop (3) with respect to the guide bar (11) and the relative rotation thereof between a fastening position with a pawl (13, 34) and a longitudinal movement position of the supporting stop (3) with respect to said guide bar (11); and a spring (33) which tends to maintain the supporting stop (3) in the fastening position with respect to the guide bar (11).

Claims

1. Pliers for tightening parts for levelling cladding tiles, with a pushing wedge (C) and a levelling element (E); the pliers comprising: a first arm (1), straight, having a handle (10) on a rear end and a guide bar (11) on a front end for a movable assembly of a supporting stop (3) of the levelling element (E); a second arm (2), at an angle, having a rear end provided with a handle (20) and having a contact surface (21) with the pushing wedge (C) on a front end; a rotation shaft (4) relative to the arms (1, 2) of the pliers; and a straight pawl for fastening the supporting stop (3) in different positions longitudinally spaced along the guide bar (11) of the first arm (1); wherein the supporting stop (3) comprises: a passage (31) with a height greater than the guide bar; a shaft (32) assembled in a longitudinal slot (12) of the guide bar (11) and which enables a longitudinal movement of the supporting stop (3) along the guide bar (11) and a relative rotation thereof between a fastening position and a longitudinal movement position of the supporting stop (3) with respect to said guide bar (11); and a spring (33) which acts against a surface of the guide bar (11) and tends to maintain the supporting stop (3) in the fastening position with respect to the guide bar (11); and wherein the straight pawl comprises: a row of teeth (13) defined along the guide bar (11), and a stop or tab (34) assembled in the supporting stop (3) and arranged so that in the fastening position of the supporting stop (3), the stop or tab (34) is housed between any two consecutive teeth (13) of the guide bar (11), and in the longitudinal movement position of the supporting stop (3), the stop or tab (34) is arranged spaced from the end of the teeth (13).

2. The pliers, according to claim 1, wherein the guide bar (11) has a first longitudinal edge (14) which makes up a supporting surface for the spring (33) of the supporting stop (3), and a second longitudinal edge (15), parallel to the previous one, wherein the row of teeth (13) of the straight pawl is defined.

3. The pliers, according to claim 1, wherein the teeth (13) of the guide bar (11) are inclined towards the rear end of the first arm (1) of the pliers, carrying the corresponding handle (10).

4. The pliers, according to claim 1, wherein the guide bar (11) comprises a graduated scale (16) indicating different fastening positions of the supporting stop (3) with respect to the row of teeth (13) of the pawl, for levelling tiles with different thicknesses.

5. The pliers, according to claim 1, further comprising a spring (5) which acts against the arms (1, 2) of the pliers and tends to maintain the pliers in an open position.

Description

BRIEF DESCRIPTION OF THE CONTENTS OF THE DRAWINGS

(1) 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:

(2) FIG. 1 shows an elevation view of the pliers of the invention during the tightening of a pushing wedge and of a tile-levelling element in opposite directions.

(3) FIG. 2 shows an elevation view of the pliers of the previous figure, wherein the supporting stop has been shown in a fastening position and a vertical cross section has been performed in order to enable the visualization of the fastening elements thereof with respect to the guide bar.

(4) FIG. 3 shows an elevation view of the pliers, wherein the supporting stop has been shown in a longitudinal movement position with respect to the guide bar, released from the teeth of said guide bar.

DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION

(5) FIG. 1 shows the pliers for tightening parts for levelling cladding tiles, which act in opposite directions against a pushing wedge (C) acting on the tiles to be leveled and against a T-shaped levelling element (E) which is moved upwards due to the action of the inclined upper surface of the wedge, and which acts against the lower surface of the tiles pressing them against the lower surface of the wedge, performing the levelling thereof.

(6) The pliers comprise: a first metal arm (1), straight, having a handle (10) on a rear end and a guide bar (11) on a front end for the movable assembly of a supporting stop (3) of the levelling element (E); and a second metal arm (2), at an angle, having a handle (20) on a rear end and a contact surface (21) with the push wedge (C) on a front end; said arms (1, 2) being related by a rotation shaft (4).

(7) The supporting stop (3) comprises a passage (31) with a height greater than the guide bar (11) and a shaft (32) assembled in a longitudinal slot (12) of the guide bar (11); said shaft (32) enables the longitudinal movement of the supporting stop (3) along the guide bar (11) and the relative rotation thereof between: a fastening position shown in FIGS. 1 and 2, and a longitudinal movement position of the supporting stop (3) with respect to said guide bar (11), shown in FIG. 3.

(8) Said supporting stop (3) has a spring (33) which acts against a surface of the guide bar (11) and it tends to maintain the supporting stop (3) in the fastening position with respect to the guide bar (11) shown in FIGS. 1 and 2.

(9) The means for fastening the supporting stop (3) in several positions, longitudinally spaced with respect to the guide bar (11), are made up of a straight pawl comprising: a row of teeth (13) defined along the guide bar (11), and a stop or tab (34) assembled in the supporting stop (3) and which: in the fastening position of the supporting stop (3) is housed between any two consecutive teeth (13) of the guide bar (11), and in the longitudinal movement position of the supporting stop (3) is arranged spaced from the end of the teeth (13).

(10) As seen in the attached figures, the guide bar (11) has a first longitudinal edge (14) which makes up the supporting surface of the spring (33) of the supporting stop (3), and a second longitudinal edge (15), parallel to the previous one, wherein the row of teeth (13) of the pawl is defined.

(11) To ensure that in the fastening position the supporting stop (3) is unable to move with respect to the guide bar (11), the teeth (13) of the guide bar (11) are inclined towards the rear end of the first arm (1) of the pliers, carrying the corresponding handle (10), meaning, in the direction opposite from the actuation of said supporting stop (3) against the levelling element (E).

(12) The guide bar (11) comprises a graduated scale (16) indicating different fastening positions of the supporting stop (3) with respect to the row of teeth (13), for levelling tiles with different thicknesses.

(13) These pliers have a spring (5) which acts against the first arm (1) and the second arm (2) and it tends to maintain the pliers in the open position, the arms (1, 2) recovering the position thereof when the manual pressure required for the actuation thereof is released.

(14) 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.