CONTAINER-UNROLLER WITH TEAR CUT AND ELECTRIC CUT, PROVIDED WITH A MECHANISM FOR THE ANTI-REWRAPPING ONE-WAY EXTRACTION OF FILM, ALUMINIUM SHEET OR SIMILAR WRAPPED AROUND A ROLL

• US 20130126577A1
• Filed: 03/22/2011
• Published: 05/23/2013
• Est. Priority Date: 03/22/2010
• Status: Active Grant

• Current Assignee: Patrizio D.E. Rossi
• Original Assignee: Patrizio D.E. Rossi
• Inventors: De Rossi, Patrizio
• Granted Patent: US 9,896,297 B2
• Time in Patent Office: Days
• US Class Current: 225/7
• CPC Class Codes: B65H 35/002 Hand-held or table apparatus B65H35/006 takes precedence
• CPC Class Codes: B65H 35/04 from or with transverse cutters or perforators
• CPC Class Codes: Y10T 225/201 With other type severing means
• CPC Class Codes: Y10T 225/246 Including special support for wound supply package

Abstract

The present invention refers to a container-unroller of film, aluminium sheet or similar wrapped around a roll (5), comprising a tubular body (a), for the accommodation of a roll (5) to be contained, control means for one-way rotation of said roll (5), means for hot electric cut and means for tear cut.

Claims

1. Container-unroller of film, aluminium sheet or similar wrapped around a roll (5), comprising a tubular body (a), for the accommodation of a roll (5) to be contained, control means for one-way rotation of said roll (5), means for hot electric cut and means for tear cut.

2. Container-unroller according to claim 1, characterized in that said means for hot electrical cut and said means for tear cut are mounted on the same device (D).

3. Container-unroller according to claim 2, characterized in that said means for hot electrical cut and said means for tear cut are placed in the same position on said device.

4. Container-unroller according to claim 3, characterized in that said means for hot electrical cut and said means for tear cut consist of a metal saw-toothed bar, connected to means for electric current generation.

5. Container-unroller according to claim 2, characterized in that said means for hot electrical cut and said means for tear cut are placed in opposite positions on said device (D).

6. Container-unroller according to claim 5, characterized in that said means for hot electrical cut and said means for tear cut respectively consists of an extended metallic wire (26′

), connected to tensioning means and means for electric current generation, and a saw-toothed bar (28).

7. Container-unroller according to claim 1, characterized in that said means for hot electrical cut and said means for tear cut consist of two interchanging devices.

8. Container-unroller according to claim 7, characterized in that it comprises a track (16), placed on the external surface of said tubular body (A), for the alternative insertion of one of said two cut devices.

9. Container-unroller according to claim 1, characterized in that said means for control of one-way rotation of said film, aluminium sheet or similar roll comprises all the inside components of said tubular body (A), i.e. said closure stoppers (2,8), provided with hinges (18,55) having a knurled surface portion (23) at the base, universal holed stoppers applicable to said roll (5), respectively a toothed (4) and a simple (6) stopper for each side of said roll (5), a tooth spring washer (22) on a side of said roll provided with a hole with a groove (21) correspondent to that of said hinges (18, 55) of said closure stoppers (2, 8), the whole being under a spring pressure.

10. Container-unroller according to claim 1, characterized in that said two closure stoppers (2, 8) have two edges, one inside of the other, apart from each other as the thickness of said tubular body thread (A), the external edge (24) of said stoppers being inwardly threaded.

11. Container-unroller according to claim 9, characterized in that said holed universal stoppers (4, 6) have a cylindrical body, equipped with a plurality of longitudinal cuts alternated along all the circumference, forming raised arched fins (40).

12. Container-unroller according to claim 7, characterized in that said device (B) for electric hot cut has a tubular shape and is provided with an extended steel wire (26), located on the rib of the device, an electric circuit fed by rechargeable batteries located inside of the instrument, and operated through a switch (10) placed outside of the instrument, and a profile (15) for matching with said tubular body (A) of the container.

13. Container-unroller according to claim 7, characterized in that said device (C) for tear cut has a cylindrical shape and is provided with a saw-toothed bar (28), placed inside of a room (33), and a cylindrically shaped base, at the two ends being equipped with two hinges (31), inserted and freely rotating in corresponding holes (32) of said room (33), allowing the saw-toothed bar to be moved between two positions, namely a cutting and a resting position, driven by means of a tab (34) located nearly at the opposite of the saw-toothed bar, said saw-toothed bar being provided with blocking means, both for cutting and resting steps, consisting of rounded projections (44) on the head of the saw-toothed bar inserted inside of correspondent recesses (46) placed in the walls of said room (33), and a profile (15) for matching with said tubular body (A) of the container.

14. Container-unroller according to claim 1, characterized in that the core of said roll (5) has reduced circumference, inside of whose self-blocking universal holed stoppers (4, 8) are placed, suitable to rotate said roll (5) within the hinges (18) of said external closure stoppers (2, 8).

15. Container-unroller according to claim 1, characterized in that the transparent plastic film on said roll (5) is coupled to a stiffening strip (20) on the head margin.