Wrap dispenser with flat rim cap

1. A dispenser comprising:

a rotating member defining a first end and a second end, the rotating member defining an outer surface, the rotating member defining an axis of rotation, the axis of rotation extending from the first end to the second end;

a holding member defining an inner surface, the inner surface enclosing an engaging portion of the rotating member, the holding member configured to rotate relative to the rotating member, the inner surface defining a protuberance extending radially inward with respect to the axis of rotation towards the outer surface; and

a cap attached to the first end of the rotating member, the cap configured to rotate relative to the holding member.

2. The dispenser of claim 1 , wherein the protuberance is a circumferential rib.

3. The dispenser of claim 2 , wherein the circumferential rib defines a triangular cross-section.

4. The dispenser of claim 2 , wherein the circumferential rib is a first circumferential rib, and wherein the inner surface of the holding member further defines a second circumferential rib extending radially inward with respect to the axis of rotation towards the outer surface.

5. The dispenser of claim 1 , wherein the cap is rotationally fixed to the rotating member.

6. The dispenser of claim 1 , wherein the protuberance is configured to center the rotating member relative to the engaging portion of the rotating member.

7. The dispenser of claim 1 , wherein:

the rotating member defines an opening at the first end;

the rotating member defines an inner surface;

the cap defines an outer surface;

an inner circumferential wall of the cap inserted through the opening;

the cap comprising a rib extending outwards from the outer surface of the cap; and

the rib engaging the inner surface of the rotating member.

8. A dispenser comprising:

a rotating member defining a first end and a second end, the rotating member defining an inner surface, the rotating member defining an opening at the first end;

a holding member enclosing an engaging portion of the rotating member; and

a cap attached to the first end of the rotating member, the cap defining an outer surface, an inner circumferential wall of the cap extending through the opening, the outer surface defining a rib disposed on the inner circumferential wall, the rib engaging the inner surface of the rotating member.

9. The dispenser of claim 8 , wherein the rotating member defines an axis of rotation extending from the first end to the second end, and wherein the rib extends radially outward from the outer surface of the cap with respect to the axis of rotation.

10. The dispenser of claim 8 , wherein:

the rib is a first rib;

the outer surface defines a second rib; and

the first rib and the second rib are radially spaced around a circumference of the inner circumferential wall.

11. The dispenser of claim 8 , wherein:

the rib defines a shoulder surface and a tapered surface;

the rotating member defines an axis of rotation extending from the first end to the second end; and

the tapered surface tapers radially inward from the shoulder surface with respect to the axis of rotation.

12. The dispenser of claim 11 , wherein the shoulder surface is sized to dig into the inner surface of the rotating member to resist withdrawal of the inner circumferential wall from the opening of the rotating member.

13. The dispenser of claim 8 , wherein:

a shoulder of the cap engages the first end of the rotating member;

the rib is a first rib of a plurality of ribs radially distributed around a circumference of the inner circumferential wall; and

an outermost diameter of the plurality of ribs is smaller than a diameter of the shoulder.

14. The dispenser of claim 13 , wherein the outermost diameter of the plurality of ribs is larger than an inner diameter of the inner surface of the rotating member.

15. A method of assembling a wrap dispenser comprising:

sliding a holding member over a first end of a rotating member, the holding member enclosing an engaging portion of the rotating member;

centering the holding member relative to the engaging portion of the rotating member; and

attaching a cap to the first end of the rotating member, the cap configured to rotate relative to the holding member.

16. The method of claim 15 , wherein centering the holding member relative to the engaging portion of the rotating member comprises engaging a circumferential rib of the holding member with an outer surface of the rotating member.

17. The method of claim 15 , wherein attaching the cap to the first end of the rotating member comprises:

inserting an inner circumferential wall of the cap into an opening defined at the first end of the rotating member; and

engaging a rib of the cap with an inner surface of the rotating member, the rib extending outwards from an outer surface of the inner circumferential wall.

18. The method of claim 17 , wherein engaging the rib of the cap with the inner surface of the rotating member comprises digging the rib into the inner surface of the rotating member.

19. The method of claim 15 , wherein attaching the cap to the first end of the rotating member comprises securing the holding member on the rotating member.

20. The method of claim 15 , further comprising positioning a collar of the holding member between the first end of the rotating member and a rim of the cap.

21. A dispenser comprising:

a rotating member defining a first end and a second end, the rotating member defining an outer surface, the rotating member defining an axis of rotation, the axis of rotation extending from the first end to the second end;

a holding member defining an inner surface, the inner surface enclosing an engaging portion of the rotating member, the holding member configured to rotate relative to the rotating member, the inner surface defining a protuberance extending radially inward with respect to the axis of rotation towards the outer surface, the protuberance being a circumferential rib; and

a cap attached to the first end of the rotating member.