Electric saw

Abstract

The invention relates to an electric saw comprising: a frame (2) mounted on a base (1), a cutting head (3) mounted on the frame by using a rotating shaft (4) in the vertical direction and an adjustable stop (5) limiting the descent of the head and the cutting depth. The adjustable stop (5) comprises: a rod (51) mounted in a through manner, with the possibility of longitudinal sliding, in a passage (53) defined in the cutting head (3) and facing a fixed stop (21) defined in the frame (2); and a screw (54) for lateral tightening and fixing of the rod (51) inside the passage (53). The screw (54) comprises an actuation knob (55) and is threadedly mounted in a hole defined in the cutting head (3) and leading into the mounting passage (53) of the rod (51).

Claims

1. An electric saw, comprising: a base, a frame mounted on the base, a cutting head including a motor configured to rotate a cutting disc and mounted on the frame via a rotating shaft of the cutting head in a vertical direction, and an adjustable stop limiting a descent of the cutting head and the cutting depth; wherein the adjustable stop comprises: a non-threaded rod provided with an actuation knob, mounted in a through manner, to allow longitudinal sliding, in a passage defined in the cutting head and facing a fixed stop defined on the frame; and a screw configured to laterally tighten and fix said rod inside the passage, said screw being provided with an actuation knob and mounted in a threaded hole defined in the cutting head and leading into the passage in which the rod is mounted; wherein the non-threaded rod has a flat face along its entire length, said flat face being aligned with a corresponding flat face of the passage and facing the screw for the screw to laterally tighten and fix said rod within the passage and wherein the passage is oriented in a vertical plane and configured to allow the rod to mount and lower by gravity therein when the actuation knob of the screw is rotated in a direction of loosening the screw.

2. The electric saw according to claim 1, wherein the screw, threads of said screw and threads of the threaded hole in which the screw is mounted are dimensioned to fix or release the rod by rotating the actuation knob of the screw less than 180°.

Description

BRIEF DESCRIPTION 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 a profile view of an exemplary embodiment of the electric saw of the invention, wherein the rotating shaft of the cutting head in the vertical direction and the adjustable stop for adjusting the cutting depth can be observed.

(3) FIGS. 2 to 4 show partial profile views of the saw of FIG. 1, sectioned along a vertical plane, wherein the cutting head and the adjustable stop can be seen in different positions.

(4) FIG. 5 shows a perspective detail view of the adjustable stop for adjusting the cutting depth.

DETAILED DESCRIPTION

(5) As can be seen in FIG. 1, the electric saw of the invention comprises a base (1), a frame (2) mounted on the base and a cutting head (3) carrying a cutting disc (31) driven by an electric motor.

(6) Said cutting head (3) is mounted on the frame (2) by means of a rotating shaft (4) in the vertical direction, to enable cuts of different depths to be made.

(7) The cutter comprises an adjustable stop, limiting the cutting depth, referenced as a whole as (5).

(8) The aforementioned adjustable stop (5) comprises: a smooth, non-threaded rod (51), provided at the upper end thereof with a knob (52) and mounted in a through manner, with the possibility of longitudinal sliding, in a passage (53) defined in the cutting head (3), and facing a fixed stop (21) defined on the frame (2); the aforementioned adjustable stop (5) comprises a screw (54) for lateral tightening and fixing of said rod (51) at the desired height.

(9) Said screw (54) for lateral tightening and fixing of the rod (51) comprises an actuation knob (55) and is mounted in a threaded hole defined in the cutting head (3) and leading into the mounting passage (53) of the rod (51).

(10) In the example shown, the rod (51) has a flat face (51a) facing the screw (54) for lateral tightening and fixing of said rod (51).

(11) The fixing screw (54) and the threads of said screw and of the threaded mounting hole thereof are dimensioned to fix or release the rod quickly, by rotating the actuation knob (55) of an amplitude less than 180°.

(12) As shown in FIG. 2, the passage (53) is oriented vertically in a vertical plane, so that when the actuation knob (55) is rotated in a direction of loosening the screw (54), the rod (51) descends by gravity until it rests with the end thereof on the fixed stop (21) of the frame (2).

(13) As shown in FIG. 3, when lowering the cutting head (3) to the desired cutting depth, the height position of the rod (51) is automatically adjusted with respect to the cutting head (3), it being enough to rotate the actuation knob (55) in the direction of tightening the screw (54) such that the rod (51) is fixed in the chosen position and remains in the same relative position with respect to the cutting head (3), as shown in FIG. 5, to make successive cuts at the previously selected depth.

(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.