Dispenser for rolled sheet material

• US 5,601,253 A
• Filed: 09/20/1995
• Issued: 02/11/1997
• Est. Priority Date: 09/20/1995
• Status: Expired due to Term

• Current Assignee: Georgia-Pacific Consumer Products LP (KOCH Industries Incorporated)
• Original Assignee: Georgia-Pacific Corporation
• Inventors: McIntyre, Stephanie, Formon, John S.
• Primary Examiner(s): Jillions, John M.
• Application Number:
  US08/530,897
• Time in Patent Office: 510 Days
• Field of Search: 242/595.1, 242/594.1, 242/594.2, 242/560, 242/560.1, 242/560.2, 242/560.3, 242/561, 312/34.8, 312/34.19, 312/34.21, 312/34.22, 312/34.23, 312/34.24
• US Class Current: 242/595.1
• CPC Class Codes: A47K 10/3827 with a distribution opening which is parallel to the rotation axis
• CPC Class Codes: A47K 2010/324 Jumbo rolls
• CPC Class Codes: B65H 2301/4137 on its outer circumference

Abstract

A dispenser for dispensing flexible sheet material from jumbo-sized rolls. The dispenser includes a housing containing a roll to be dispensed, and protecting the roll from the environment and from vandalism. The housing includes an opening at the bottom thereof to permit a user to withdraw the flexible sheet material. The dispenser includes at least one support roller adjacent the opening. Each support roller supports the roll by its lower periphery, facilitates the rotation of the roll, and maintains a portion of the periphery of the roll adjacent the opening. The housing further includes a wall, with a guide track, which is mounted to a restroom stall wall or another supporting surface. The dispenser also includes a guide mandrel which is slidably retained within the guide track, and is located inside the hollow core of the roll of flexible sheet material. The guide mandrel and guide slot direct the roll along a predetermined path during the entire dispensing of sheet material, and also assure that the roll is maintained in its proper position adjacent the dispenser opening. In addition, the support rollers, the guide slot, and the guide mandrel facilitate the withdrawal of sheet material from the dispenser and reduce the amount of force required to rotate the roll. This permits the sheet material on the roll to be perforated into sections along its length, which in turn, eliminates the need for any sharp or serrated edges normally used for tearing the sheet material.

Claims

1. A dispenser for storing and dispensing flexible sheet material from a roll having an axis of rotation, a periphery surface and a hollow core, said dispenser comprising:

a housing for containing the roll of flexible sheet material to be dispensed, said housing including a first wall having a closed guide track, and an opening for dispensing the flexible sheet material from the roll therethrough, said guide track having opposed vertical surfaces, an upper surface, and a lower surface;

a guide mandrel, said guide mandrel having a first portion slidably retained between said opposed vertical surfaces, said upper surface and said lower surface of said guide track, and a second portion positionable within the hollow core of the roll of flexible sheet material; and

a support member, said support member being mounted for rotation about a first axis located below the axis of rotation of the roll, said support member positioned adjacent said opening in contact with the periphery surface of the roll, and supporting the roll during the dispensing of the flexible sheet material from the roll.

2. The dispenser of claim 1, wherein said support member is rotatably coupled to said first wall.

3. The dispenser of claim 1, said first wall including a slot therein forming said guide track, said first portion of said guide mandrel extending through said slot.

4. The dispenser of claim 1, wherein said housing includes a bottom, said opening located at the bottom of the housing for dispensing the flexible sheet material out through the bottom of the housing, said first wall having mounting means for mounting the dispenser to a supporting surface.

5. The dispenser of claim 1, wherein said second portion of said guide mandrel includes a generally cylindrical body, said first portion of said guide mandrel including first and second outwardly extending annular flanges, said guide track being located between said first and second outwardly extending flanges.

6. The dispenser of claim 5, wherein said guide mandrel is substantially comprised of a first mandrel member and a second mandrel member, said first and second mandrel members fixedly attached to each other, said first mandrel member including said first outwardly extending flange and said second mandrel member including said second outwardly extending flange.

7. The dispenser of claim 5, wherein said guide track includes a guide slot formed in a recessed portion of said first wall, said first outwardly extending flange travelling within said recessed portion.

8. The dispenser of claim 1, wherein said opening is defined as the area between a plurality of wall surfaces, said plurality of wall surfaces comprised of generally smooth edges void of serrations.

9. The dispenser of claim 1, further comprising a plurality of bearing means coupled to said support member for reducing the rotational resistance of said support member.

10. The dispenser of claim 1, wherein said guide mandrel includes a forward end on the second portion of the guide mandrel opposite from said first portion, said forward end being sized to be located inside said hollow core of the roll to be dispensed.

11. The dispenser of claim 1, wherein the roll and said guide mandrel are coupled such that they are movable with respect to each other when the flexible sheet material is dispensed from the dispenser.

12. The dispenser of claim 1, wherein the roll and said guide mandrel are coupled such that they rotate together about the axis of rotation of the roll when the flexible sheet material is dispensed from the dispenser.

13. The dispenser of claim 1, wherein said support member is a first support member, said dispenser further comprising a second support member spaced from said first support member, said second support member being mounted for rotation about a second axis located below the axis of rotation of the roll, said second support member positioned adjacent said opening in contact with the periphery surface of the roll and supporting the roll during the dispensing of the flexible sheet material from the roll.

14. The dispenser of claim 1, wherein said dispenser includes only one guide track for guiding the movement of the roll.

15. The dispenser of claim 1, wherein said dispenser is sized to permit the dispensing of sheet material from rolls having an initial diameter of at least eight inches.

16. A dispenser for storing and dispensing flexible sheet material from a roll having an axis of rotation, a periphery surface and a hollow core, said dispenser comprising:

a housing for containing the roll of flexible sheet material to be dispensed, said housing including a first wall having a guide track, and an opening for dispensing the flexible sheet material from the roll therethrough;

a guide mandrel, said guide mandrel having a first portion slidably retained within said guide track, and a second portion positionable within the hollow core of the roll of flexible sheet material; and

a support member, said support member being mounted for rotation about a first axis located below the axis of rotation of the roll, said support member positioned adjacent said opening in contact with the periphery surface of the roll, and supporting the roll during the dispensing of the flexible sheet material from the roll;

wherein mid housing includes a bottom, said opening located at the bottom of the housing for dispensing the flexible sheet material out through the bottom of the housing, said first wall having mounting means for mounting the dispenser to a supporting surface; and

wherein said housing further includes a second wall generally opposed from said first wall, said guide mandrel having an end on the second portion distal from said first portion, said distal end located between said first and second walls and spaced a predetermined distance from said second wall.

17. A dispenser for storing and dispensing flexible sheet material from a roll having an axis of rotation, a periphery surface and a hollow core, said dispenser comprising:

a housing for containing the roll of flexible sheet material to be dispensed, said housing including a first wall having a guide track, and an opening for dispensing the flexible sheet material from the roll therethrough;

a guide mandrel, said guide mandrel having a first portion slidably retained within said guide track, and a second portion positionable within the hollow core of the roll of flexible sheet material; and

a support member, said support member being mounted for rotation about a first axis located below the axis of rotation of the roll, said support member positioned adjacent said opening in contact with the periphery surface of the roll, and supporting the roll during the dispensing of the flexible sheet material from the roll;

wherein said dispenser includes surfaces for permanently retaining said guide mandrel within said guide track.

18. The dispenser of claim 17, wherein said guide track includes said surfaces for permanently retaining said guide mandrel within said guide track.

19. A dispenser for storing and dispensing flexible sheet material from a roll having an axis of rotation, a periphery surface and a hollow core, said dispenser adapted to be mounted to a planar supporting surface, said dispenser comprising:

a housing containing the roll of flexible sheet material to be dispensed, said housing including first and second opposing walls and an opening for dispensing the flexible sheet material from the roll therethrough, said first wall being adapted for attachment to the planar supporting surface;

a guide track on said first wall defining a path of travel for the roll as it is being dispensed;

a guide mandrel positioned within the hollow core of the roll, said guide mandrel having opposing first and second end portions, said first end portion retained within said guide track for slidable movement with respect thereto, and said second end portion located within the housing between said first and second walls;

a first support member contacting the periphery surface of the roll and supporting the roll during the dispensing of flexible sheet material; and

a second support member spaced from said first support member, said second support member contacting the periphery surface of the roll and supporting the roll during the dispensing of flexible sheet material.

20. The dispenser of claim 19, wherein the planar supporting surface defines a first plane, said first and second support members supporting said roll such that the axis of rotation of the roll is perpendicular to the first plane.

21. The dispenser of claim 20, wherein said first and second support members are mounted for rotation about respective axes which are parallel to said axis of rotation of the roll and perpendicular to the first plane.

22. The dispenser of claim further comprising spacing means on said first wall for spacing the guide track a predetermined distance away from the planar supporting surface permitting the guide mandrel to travel within the guide track without hinderance.

23. The dispenser of claim 22, wherein said spacing means includes an inwardly recessed portion on said first wall, said inwardly recessed portion spacing the guide track a predetermined distance away from the first wall.

24. A dispenser for storing and dispensing flexible sheet material from a roll having an axis of rotation, a periphery surface and a hollow core, said dispenser adapted to be mounted to a planar supporting surface, said dispenser comprising:

a housing containing the roll of flexible sheet material to be dispensed, said housing including first and second opposing walls and an opening for dispensing the flexible sheet material from the roll therethrough, said first wall being adapted for attachment to the planar supporting surface;

a guide track on said first wall defining a path of travel for the roll as it is being dispensed;

a guide mandrel positioned within the hollow core of the roll, said guide mandrel having opposing first and second end portions, said first end portion retained within said guide track for slidable movement with respect thereto, and said second end portion located within the housing between said first and second walls; and

a support member contacting the periphery surface of the roll and supporting the roll during the dispensing of flexible sheet material;

wherein the planar supporting surface defines a first plane, said support member supporting said roll such that the axis of rotation of the roll is perpendicular to the first plane;

further comprising spacing means on said first wall for spacing the guide track a predetermined distance away from the planar supporting surface permitting the guide mandrel to travel within the guide track without hindrance;

wherein said spacing means includes a plurality of raised spacer members on said first wall, said plurality of raised spacer members spacing the first wall a predetermined distance away from the planar supporting surface.

25. A dispenser for storing and dispensing flexible sheet material from a roll having an initial diameter of at least eight inches, an axis of rotation, a periphery surface, and a hollow core, said dispenser comprising:

a housing, said housing sized for containing the roll of flexible sheet material, said housing includes an opening for withdrawal of sheet material therethrough; and

roll supporting and guiding means for supporting the roll by its periphery during the entire dispensing of sheet material and for guiding the roll along a predetermined path during the entire dispensing of sheet material, whereby a portion of the periphery of the roll is maintained adjacent the opening during the entire dispensing of sheet material from the roll;

said roll supporting and guiding means includes;

a first support member located below the axis of rotation of the roll and adjacent the opening for contacting and supporting the periphery of the roll during the dispensing of flexible sheet material from the roll, a second support member spaced from said first support member and located below the axis of rotation of the roll and adjacent the opening for contacting and supporting the periphery of the roll during the dispensing of flexible sheet material from the roll, a guide track, and a guide mandrel slidably retained within mid guide track, the guide mandrel positioned within the hollow core of the roll, said first and said second support members rotatably mounted to said housing.

26. A dispenser for storing and dispensing flexible sheet material from a roll having an axis of rotation, a periphery surface and a hollow core, said dispenser comprising:

a housing for containing the roll of flexible sheet material to be dispensed, said housing including a plurality of walls including a first wall having a guide track for guiding the movement of the roll as it is dispensed, and an opening for dispensing the flexible sheet material from the roll therethrough, said housing containing only one guide track for guiding the movement of the roll as it is dispensed;

a guide mandrel, said guide mandrel having a first portion slidably retained within said guide track, and a second portion positionable within the hollow core of the roll of flexible sheet material; and

a support member, said support member being mounted for rotation about a first axis located below the axis of rotation of the roll, said support member positioned adjacent said opening in contact with the periphery surface of the roll, and supporting the roll during the dispensing of the flexible sheet material from the roll.

27. The dispenser of claim 26, wherein said support member is rotatably coupled to said first wall.

28. The dispenser of claim 26, said first wall including a slot therein forming said guide track, said first portion of said guide mandrel extending through said slot.

29. The dispenser of claim 26, wherein said housing includes a bottom, said opening located at the bottom of the housing for dispensing the flexible sheet material out through the bottom of the housing, said first wall having mounting means for mounting the dispenser to a supporting surface.

30. The dispenser of claim 29, wherein said housing further includes a second wall generally opposed from said first wall, said guide mandrel having an end on the second portion distal from said first portion, said distal end located between said first and second walls and spaced a predetermined distance from said second wall.

31. The dispenser of claim 26, wherein said second portion of said guide mandrel includes a generally cylindrical body, said first portion of said guide mandrel including first and second outwardly extending annular flanges, said guide track being located between said first and second outwardly extending flanges.

32. The dispenser of claim 31, wherein said guide mandrel is substantially comprised of a first mandrel member and a second mandrel member, said first and second mandrel members fixedly attached to each other, said first mandrel member including said first outwardly extending flange and said second mandrel member including said second outwardly extending flange.

33. The dispenser of claim 31, wherein said guide track includes a guide slot formed in a recessed portion of said first wall, said first outwardly extending flange traveling within said recessed portion.

34. The dispenser of claim 26, wherein said opening is defined as the area between said plurality of wall surfaces, said plurality of wall surfaces comprised of generally smooth edges void of serrations.

35. The dispenser of claim 26, further comprising a plurality of bearing means coupled to said support member for reducing the rotational resistance of said support member.

36. The dispenser of claim 26, wherein said guide mandrel is permanently retained within said guide track.

37. The dispenser of claim 26, wherein said guide mandrel includes a forward end on the second portion of the guide mandrel opposite from said first portion, said forward end being sized to be located inside said hollow core of the roll to be dispensed.

38. The dispenser of claim 26, wherein the roll and said guide mandrel are coupled such that they are movable with respect to each other when the flexible sheet material is dispensed from the dispenser.

39. The dispenser of claim 26, wherein roll and said guide mandrel are coupled such that they rotate together about the axis of rotation of the roll when the flexible sheet material is dispensed from the dispenser.

40. The dispenser of claim 26, wherein said support member is a first support member, said dispenser further comprising a second support member spaced from said first support member, said second support member being mounted for rotation about a second axis located below the axis of rotation of the roll, said second support member positioned adjacent said opening in contact with the periphery surface of the roll and supporting the roll during the dispensing of the flexible sheet material from the roll.

41. The dispenser of claim 26, wherein said dispenser is sized to permit the dispensing of sheet material from rolls having an initial diameter of at least eight inches.