Core for a Roll of Material

• US 20080073457A1
• Filed: 09/23/2005
• Published: 03/27/2008
• Est. Priority Date: 10/21/2004
• Status: Active Grant

• Current Assignee: Real Time Logistics Solutions Ltd.
• Original Assignee: Real Time Logistics Solutions Ltd.
• Inventors: Milton, Peter
• Granted Patent: US 7,896,286 B2
• Time in Patent Office: Days
• US Class Current: 242/613.5
• CPC Class Codes: B65H 2553/52 RFID sensor
• CPC Class Codes: B65H 2701/515 assembled from parts made of different materials
• CPC Class Codes: B65H 75/182 Identification means
• CPC Class Codes: B65H 75/185 End caps, plugs or adapters

Abstract

A core (16) for a roll of material, which core (16) comprises a body portion (18), a first member which is removably secured to a first end (22) of the body portion (18), a first bore (24) through the first end member (20), a second end member (26) which is removably secured to a second end (28) of the body portion (18), a second bore through the second end member (26), a third bore (30) through the body portion (18), the first, second and third bores all having a common longitudinal axis, the first bore (24) having a smooth inner surface (32) whereby the first bore (24) is able to receive a chuck (34) such that centering of the chuck (34) is facilitated by the smooth inner surface of the first bore (24), the second bore having a smooth inner surface (32) whereby the second bore is able to receive a chuck (34) such that centering of the chuck (34) is facilitated by the smooth inner surface (32) of the second bore, the body portion being made of a metal, and the first and second end members (20, 26) each being made of a plastics material.

Claims

1. A core for a roll of material, which core comprises a body portion, a first member which is removably secured to a first end of the body portion, a first bore through the first end member, a second end member which is removably secured to a second end of the body portion, a second bore through the second end member, a third bore through the body portion, the first, second and third bores all having a common longitudinal axis, the first bore having a smooth inner surface whereby the first bore is able to receive a chuck such that centering of the chuck is facilitated by the smooth inner surface of the first bore, the second bore having a smooth inner surface whereby the second bore is able to receive a chuck such that centering of the chuck is facilitated by the smooth inner surface of the second bore, the body portion being made of a metal, and the first and second end members each being made of a plastics material.

2. A core according to claim 1 in which the first end member is inserted into the third bore at the first end of the body portion, and in which the second end member is inserted into the third bore at the second end of the body portion.

3. A core according to claim 2 in which the first end of the body portion receives an insert portion on the first end member, and in which the second end of the body portion receives an insert portion on the second end member.

4. A core according to claim 3 in which the third bore has longitudinally extending splines, and in which the insert portions on the first and second end members have complementary grooves.

5. A bore according to claim 4 in which the splines extend the entire length of the third bore.

6. A bore according to claim 1 in which the third bore is plain, and in which the insert portions of the first and second end members are plain.

7. A core according to claim 1 in which the first end member has a first lead-in part, and in which the second end member has a second lead-in part.

8. A core according to claim 1 in which the first end member has a first flange for abutting against the first end of the body portion, and in which the second end member has a second flange for abutting against a second end of the body portion.

9. A core according to claim 1 and including screws which are used in the removable securing of the first and second members to the body portion.

10. A core according to claim 1 in which the metal is aluminum.

11. A core according to claim 10 in which the aluminum is an aluminum alloy.

12. A core according to claim 11 in which the aluminum alloy is an aluminum magnesium silicon alloy.

13. A core according to claim 1 in which the plastics material is a polypropylene co-polymer.

14. A core according to claim 1 and including an identity tag for enabling tracking of the core in use.

15. A core according to claim 14 in which the identity tag is on at least one of the first and second end members.

16. A core according to claim 14 in which the identity tag is a radio frequency operable identity tag.

17. A roll of material when including a core according to claim 1.

18. A roll of material according to claim 17 in which the material is printing paper.