Container for packaging and unwinding a coil of wire

• US 5,494,160 A
• Filed: 10/17/1994
• Issued: 02/27/1996
• Est. Priority Date: 02/23/1993
• Status: Expired due to Term

• Current Assignee: Sidergas SpA
• Original Assignee: Sidergas SpA
• Inventors: Gelmetti, Carlo
• Primary Examiner(s): Foster, Jimmy G.
• Application Number:
  US08/318,868
• Time in Patent Office: 498 Days
• Field of Search: 206/389, 206/395, 206/396, 206/408, 206/409, 242/170-172, 242/578, 242/578.1, 242/588.3, 242/588.4
• US Class Current: 206/395
• CPC Class Codes: B65D 5/10 with end closures formed by inward-folding of self-locking flaps hinged to tubular body
• CPC Class Codes: B65D 5/46008 formed separately from the container body
• CPC Class Codes: B65D 5/566 Linings made of relatively rigid sheet material, e.g. carton B65D5/0281 and B65D5/58 takes precedence; combined with a flexible lining B65D5/56, B65D5/60; for thermal insulating purposes B65D81/3858; for shock absorbing purposes B65D81/1275
• CPC Class Codes: B65D 85/04 for coils of wire, rope or hose
• CPC Class Codes: B65H 2701/32 Optical fibres or optical cables
• CPC Class Codes: B65H 49/02 Methods or apparatus in which packages do not rotate
• CPC Class Codes: B65H 49/08 enclosing the package

Abstract

Container or box for packaging and unwinding a coil (18) of wire (2), which comprises: a box-like body (5, 11) that has a polygonal plan, can be opened at the top and is meant to accommodate a coil for wire; and a coil covering panel (16) that has a central circular opening (17) and a contour that matches the plan shape of the box-like body, so that it can freely descend within the box-like body in contact with the coil as the height of the coil decreases as the wire is unwound from above through the central opening of the panel, in order to prevent the lifting of turns of wire between the peripheral region of the panel and the container and thus the accidental entanglement of turns.

Claims

1. Container for packaging and unwinding a coil of wire, comprising:

a box shaped body for accommodating a wire coil, said box shaped body having a polygonal plan cross-section and an openable top end for allowing insertion of the wire coil; and

a coil covering panel having a central circular opening and a contour with angular portions, said contour matching the inner plan shape of said body, said panel being freely descendable in said box shaped body in contact with said coil as height thereof decreases following unwinding of wire from an upper end of the coil through the central opening of the panel, said angular portions of the panel preventing lifting of wire turns between a peripheral region of the panel and an inner surface of said box shaped body and thus accidental entanglement of the wire turns.

2. Container according to claim 1, wherein said box shaped body and said coil covering panel have a polygonal plan shape with a number of sides which is any of 3, 5, 6 and 8.

3. Container according to claim 1, further comprising a pair of handles for manual handling and transport.

4. Container according to claim 1, comprising:

a first panel made of punched cardboard, said panel being foldable so as to obtain a first box shaped body with multiple closure flaps at its top, two of said flaps having a through slot;

a second panel made of punched cardboard, said second panel being foldable so as to obtain a second box shaped body having two lateral flaps that are shaped as handles, said second box shaped body being insertable in said first box shaped body, and said two lateral flaps being insertable in said slots of the first box shaped body; and

a coil covering panel which is also made of cardboard.

5. Container according to claim 2, wherein a wire coil is accommodated in said box shaped body, the coil having elliptical turns arranged in groups with major axes thereof offset at an angle being any of 120°

, 90°

, 72°

, 60° and

45°

.

6. Container according to claim 5, wherein wire forming said coil accommodated in said box shaped body is pre-twisted for producing during unwinding thereof a complete twist after every portion of a preset length so that the wire unwinds straight, without bends.

7. Container according to claim 6, further comprising binding straps for binding together the turns of said coil so as to prevent rising of upper turns of the coil during transport.

8. Container according to claim 1, further comprising a wire unwinding hood, said hood being shaped as a frustum of pyramid with a polygonal base corresponding to the polygonal plan cross-section of said box shaped body.

9. Container according to claim 1, further comprising angular elements for confining the coil, said angular elements being located at inner corners of said box shaped body.

10. Container according to claim 9, wherein each one of said angular elements delimits a longitudinal recess and comprises a removable insert for abutment against the coil.

11. Container according to claim 1, wherein said angular elements are made of cardboard and said insert is a wood strip.

12. Container according to claim 1, further comprising a pallet being fixed to said box shaped body.

13. Container for packaging and unwinding a coil of wire, comprising:

a box shaped body for accommodating a wire coil, said box shaped body having a polygonal plan cross-section and an openable top end for allowing insertion of the wire coil;

a coil covering panel having a central circular opening and a contour with angular portions, said contour matching the inner plan shape of said body, said panel being freely descendable in said box shaped body in contact with said coil as height thereof decreases following unwinding of wire from an upper end of the coil through the central opening of the panel, said angular portions of the panel preventing lifting of wire turns between a peripheral region of the panel and an inner surface of said box shaped body and thus accidental entanglement of the wire turns; and

angular elements for confining the coil, said angular elements being located at inner corners of said box shaped body.

14. Container according to claim 13, wherein each one of said angular elements delimits a longitudinal recess and comprises a removable insert for abutment against the coil.

15. Container according to claim 14, wherein said angular elements are made of cardboard and said insert is a wood strip.

16. Container according to claim 13, wherein said box shaped body and said coil covering panel have a polygonal plan shape with a number of sides which is any of 3, 5, 6 and 8.

17. Container according to claim 16, wherein a wire coil is accommodated in said box shaped body, the coil having elliptical turns arranged in groups with major axes thereof offset by an angle being any of 120°

, 90°

, 72°

, 60° and

45°

.

18. Container according to claim 13, further comprising a pair of handles for manual handling and transport.

19. Container according to claim 13, comprising:

a first panel made of punched cardboard, said panel being foldable so as to obtain a first box shaped body with multiple closure flaps at its top, two of said flaps having a through slot;

a second panel made of punched cardboard, said second panel being foldable so as to obtain a second box shaped body having two lateral flaps that are shaped as handles, said second box shaped body being insertable in said first box shaped body, and said two lateral flaps being insertable in said slots of the first box shaped body; and

a coil covering panel which is also made of cardboard.

20. Container according to claim 13, further comprising a pallet being fixed to said box shaped body.