Self-adjusting device for cutting head for monoguide cutters

Abstract

A cutting head for monoguide cutters, with a self-adjusting device is provided. The self-adjusting device can include sets of bearings that comprise fixed bearings (31, 32) and an adjustable bearing (33) that act on races (11, 12) of a monoguide profile disposed on different planes. Each adjustable bearing (33) is mounted on a rocker arm (4) with a first end (41) rotatably mounted on a shaft (5) fixed to the cutting head (2), and with a second end (42) that presses against an elastic element (6) situated between the second end (42) of the rocker arm (4) and the case of the cutting head (2), the elastic element (6) determines the pressure of the bearings (31, 32, 33) against the races (11, 12) of the monoguide profile (1).

Claims

1. A device for monoguide cutters, comprising: a cutting head configured to move along a rail having a single profile, which includes two sets of bearings on opposite sides of the rail, each set of the two sets of bearings comprising two fixed bearings and one adjustable bearing; wherein the two fixed bearings are longitudinally aligned and separated in a direction of movement of the cutting head; and wherein the adjustable bearing is arranged between the two fixed bearings on a plane perpendicular to the two fixed bearings; wherein the two fixed bearings and the adjustable bearings act on longitudinal races defined on the rail and arranged on different planes; and wherein each of the adjustable bearings is mounted on a rocker arm which has a first end rotatably mounted on a shaft fixed to the cutting head, and a second end that presses against an elastic element situated between said second end of the rocker arm and a case of the cutting head, said elastic element determining a pressure of the adjustable bearings against the longitudinal races of the monoguide profile.

2. The device according to claim 1, wherein the the two sets of bearings are located on an inside of the cutting head.

Description

DESCRIPTION OF THE FIGURES

(1) As a complement to the description being made, and for the purpose of helping to make the characteristics of the invention more readily understandable, this specification is accompanied by a set of drawings which, by way of illustration and not limitation, represent the following.

(2) FIG. 1 shows a schematic perspective view of a manual ceramic cutter provided with a monoguide profile and of the self-adjusting device for the cutting head, according to the invention.

(3) FIG. 2 shows a front detailed view of the cutting head and of the monoguide profile in a vertical plane cross section in which the self-adjusting device object of the invention can be seen.

(4) FIG. 3 shows a partial elevation view of the cutting head in a vertical plane cross section, showing one of the sets of bearings intended to act on one of the sides of the monoguide profile and making up the self-adjusting device of the invention.

PREFERRED EMBODIMENT OF THE INVENTION

(5) The exemplary embodiment shown in FIG. 1 shows a manual ceramic cutter provided with a monoguide (1) on which a cutting head (2) with the possibility of longitudinal movement is mounted.

(6) As observed in FIGS. 2 and 3, the cutting head (2) comprises sets of bearings on the inside and on two opposite sides, each one of which comprises: a pair of fixed bearings (31, 32) longitudinally aligned and separated in the direction of movement of the cutting head (1) and an adjustable bearing (33) arranged between the two previous ones and on a plane that is perpendicular to the same.

(7) The fixed bearings (31, 32) rest against a race (11) of the corresponding side of the guide profile (1), and the adjustable bearing (33) rests against a race (12) that is perpendicular to the previous one and corresponds to the same side of the guide profile (1).

(8) Each adjustable bearing (33) is mounted on a rocker (4) having a first end (41) rotatably mounted on a shaft (5) fixed to the cutting head (1), and a second end (42) that presses against an elastic element (6) situated between said second end (42) of the rocker and the case of the cutting head (1).

(9) The dimensions of the elastic element (6) and of the rocker (4) are calculated such that the adjustable bearing (33) exerts a specific pressure against the corresponding guide (12) of the monoguide profile (1) without any intervention or adjustment by the operator being necessary.

(10) Having sufficiently described the nature of the invention, in addition to an example of 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.