Dispenser for length material

• US 20100193539A1
• Filed: 02/04/2009
• Published: 08/05/2010
• Est. Priority Date: 02/04/2009
• Status: Active Grant

• Current Assignee: Hacene Fathi
• Original Assignee: Hacene Fathi
• Inventors: Fathi, Hacene
• Granted Patent: US 8,215,527 B2
• Time in Patent Office: Days
• US Class Current: 221/45
• CPC Class Codes: B65H 35/0026 for delivering pressure-sensitive adhesive tape
• CPC Class Codes: B65H 35/0033 and affixing it to a surface B65H35/004 takes precedence
• CPC Class Codes: Y10T 156/1795 Implement carried web supply
• CPC Class Codes: Y10T 225/252 With brake or tensioner
• CPC Class Codes: Y10T 225/253 Restricted or restrictable work outlet
• CPC Class Codes: Y10T 225/257 Blade mounted on hand-held wound package

Abstract

A dispenser for length material comprises a first resiliently biased locking roller and a second locking roller defining a nip therebetween for the passage of length material to be dispensed, the second roller being carried on a frame which upon appropriate movement causes the second roller to move into a locking position in relation to the first locking roller to clamp the length material to prevent unreeling or return of the free end thereto once appropriate cutting of a portion of the length material has been effected.

Claims

1. A dispenser for length material comprising:

a resiliently biased rotatable first locking member defining a first axis;

a second locking member defining a second axis substantially parallel to said first axis and spaced therefrom;

a nip defined between the first and second locking members for receiving therethrough in use an end portion of the length material;

an underlying dispensing surface for supporting in use said end portion, the first locking member being biased towards said surface; and

a movable frame circumjacent the first locking member for selective contact therewith, the frame carrying said second locking member and being adapted in use to effect relative movement between the first and second locking members selectively between a locked configuration in which in use the length material is clamped in the nip by the resiliently biased first locking member acting against the second locking member and an unlocked configuration in which the length material is free to move through the nip.

2. A dispenser according to claim 1, wherein the first and second locking members are bars of or coated with a low friction material which in use in an unlocked mode of operation allows free travel of the length material and a locking mode allows the length material to be clamped in the nip.

3. A dispenser according to claim 1, wherein the first and second locking members are freely rotatable rollers.

4. A dispenser according to claim 3, wherein the first locking roller is of hollow cylindrical form and has a greater diameter than that of the second locking roller.

5. A dispenser according to claim 4, wherein the first locking roller floats within said frame, the resilient bias for the first locking roller being accommodated within the frame.

6. A dispenser according to claim 5, wherein a cross bar is provided and extends within the frame and into the hollow first locking roller, a contact roller is rotatably mounted on the cross bar, a resilient bias is associated with the contact roller, and the contact roller is biased thereby into rolling contact with an internal cylindrical surface of the first locking roller.

7. A dispenser according to claim 6, wherein a second, mounting, roller is provided internally of the hollow first locking roller and is mounted on an axle forming part of the frame, the axes of the contact roller and the mounting roller being substantially parallel to the first axis and the two rollers being selectively in contact with one another.

8. A dispenser according to claim 7, wherein the frame includes a third locking member in the form of an abutment adapted upon appropriate movement of the frame towards and into locking position is capable of pushing the first locking member further into a clamping action in relation to the second locking member with the resilient bias assisting in the clamping action.

9. A dispenser according to claim 6, wherein a spring-loaded mount is provided and is adapted in use to locate and hold the dispenser onto a tubed roll of stored length material, the mount having at least one side piece for locating adjacent a free end of the tubed roll and a central member for engaging the inner surface of the tubed roll.

10. A dispenser according to claim 9, wherein the spring-loaded mount has an arm carrying the cross bar on which the contact roller is mounted.

11. A dispenser according to claim 1, wherein the underlying dispensing surface is constituted by a part of an unreeled portion of the length material.

12. A dispenser according to claim 3, wherein the underlying dispensing surface is a platform surface intermediate the stored length material and the first locking roller.

13. A dispenser according to claim 12, wherein the platform surface is a convex platform surface.

14. A dispenser according to claim 12, wherein the platform surface is a belt member rollably mounted around corresponding mounting shafts.

15. A dispenser according to claim 3, wherein the underlying dispensing surface is freely rotating roller intermediate the stored length material and the first locking roller.

16. A dispenser according to claim 1, wherein a guide is provided for supporting the free end of the length material during unreeling and subsequent cutting of a piece of the length material.

17. A dispenser according to claim 16, wherein the guide is located on the frame in such manner as in use to distance the free end of the length material from the underlying dispensing surface in the locked and unlocked positions of the first and second locking members.

18. A dispenser according to claim 9, wherein a cutting member is provided for the dispenser and is carried by the spring-loaded mount.

19. A dispenser according to claim 1, wherein a casing is provided for the dispenser and a cutting member is formed on the casing.

20. A dispenser according to claim 19, wherein the casing is shaped to accommodate a roll of the length material, and the casing is provided internally thereof with spring-loaded guides to pressure the length material into contact with the dispenser as the length of material is unwound from the roll.

21. A dispenser according to claim 20, wherein the casing is provided with a movable closure selectively closing an opening mouth thereof to allow the free end to extend there through, the closure connecting to the dispenser to selectively unlock the dispenser, upon opening thereof, from the locked configuration to the unlocked configuration.

22. A dispenser according to claim 19, wherein a resiliently loaded roller is provided in the casing and is biased to effect locking of the dispenser following release of pressure on the resiliently loaded roller.

23. A dispenser according to claim 3, wherein the first and second locking rollers are surface contoured to provide a ribbed surface for contacting the length material.