Thrusting device for pipes or the like to bend in a pipe or the like bending machine

Abstract

A thrusting device for pipes or the like to bend in a pipe or the like bending machine suitable for a quick-acting coupling-release.

Claims

1. A thrusting device for pipes to be bent in a pipe bending machine, comprising: a first tool shaped as a rod provided with an end which includes at least one elbow-shaped hollow portion provided with a convex female portion suitable for accommodating a male means and a recess suitable for preventing rotation of the first tool, and a ring-shaped second tool formed of two portions, said ring-shaped second tool provided with said male means suitable for being accommodated in said convex female portion of said first tool.

2. The thrusting device according to claim 1, wherein said end is an independent tool connected to the rod-shaped tool via a connection means.

3. The thrusting device according to claim 2, wherein the connection means is a screw-type connection means.

4. The thrusting device according to claim 1, further comprising elastic means placed between a first portion and a second portion of the second tool.

5. The thrusting device according to claim 4, wherein the second portion of the second tool comprises a rod.

6. The thrusting device according to claim 4, wherein the first tool is provided with a recess suitable for preventing rotation of the first tool, and the second portion of the second tool includes a tooth suitable for being inserted into the recess of the first tool.

Description

DESCRIPTION OF THE FIGURES

(1) FIG. 1 shows a perspective view of the thrusting device for pipe or the like to bend in a pipe or the like bending machine.

(2) FIG. 2 shows a perspective view of the end of the tool (4.sup.1) connected to the rod.

(3) FIG. 3 shows a perspective view of the second tool.

(4) FIG. 4 shows the means of the first and second tools suitable for antirotation.

(5) FIG. 1 shows a thrusting device (1) for pipe or the like to bend (2) in a pipe or the like bending machine.

(6) It comprises a first tool (3) shaped as a rod suitable for calibration, called calibration rod. In said first tool there is an end (4) which comprises at least a preferably elbow-shaped hollow draft (5) equipped with a convex female means (6) suitable for accommodating a male means (7). Said first tool also comprises a recess (8) suitable for the antirotation of the first tool (3).

(7) Said FIG. 1 also shows a preferably ring-shaped second tool (9) formed of two portions (9.sup.1, 9.sup.2), equipped with at least one male means (7) suitable for being accommodated in said female portion (6) of the first tool.

(8) FIG. 2 shows a perspective view of the first tool in the preferred embodiment, i.e. formed of two portions: a first portion (3.sup.1) and a second portion comprising a hollow draft. In this embodiment, the second portion is thus implemented like a tool (4.sup.1) autonomous with respect to the mentioned first portion (3.sup.1).

(9) The tool (4.sup.1) is detachable from and connectable to the first portion (3.sup.1) of the first tool via connection means (4.sup.2), preferably of a screw type. Such connection means (4.sup.2) are suitable for making the first portion (3.sup.1) of the first tool integral with the tool (4.sup.1).

(10) FIG. 3 shows a perspective view of elastic means (10) located between the first portion (9.sup.1) and the second portion (9.sup.2) of the second tool (9), the second portion (9.sup.2) of the second tool (9) comprising a rod (9.sup.3).

(11) FIG. 4 shows a perspective view of the first tool (3) having the shape of a rod provided with a recess (8) suitable for the antirotation of the first tool (3), the first portion (9.sup.1) of the second tool, and the second portion (9.sup.2) of the mentioned second tool (9). The second portion (9.sup.2) of the mentioned second tool (9) comprises a tooth (11) suitable for being inserted into the antirotation recess (8) of the first tool (3). As a matter of fact, the presence of the tooth (11) of the second tool (9) accommodated in the recess (8) of the first tool (3) operates in such a way as not to allow the first tool (3) to rotate.

(12) Pursuant to and in accordance with article 76 paragraph 3 of the Industrial Property Code, the applicant requires the conversion of the patent according to the present invention if there are causes of voidness presently not known.