Braking wrap dispenser

Patent metadata

Field	Value
Publication number	US-9950896-B2
Application number	US-201715606361-A
Country	US
Kind code	B2
Filing date	May 26, 2017
Priority date	Dec 17, 2013
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

A film dispenser includes a holding member, the holding member including a first end and a second end joined to the first end. The holding member defines a longitudinal axis extending from the first end to the second end. The second end defines a brake portion, a connecting portion extending radially inward from the brake portion, and a slot defined in the brake portion. The slot includes a first portion extending in a circumferential direction across a width of the brake portion and second and third portions extending across a length of the brake portion. The slot further includes a fourth portion angled with respect to the second portion and a fifth portion angled with respect to the third portion, each of the fourth and fifth portions extending in a circumferential direction, the fourth and fifth portions of the slot intersecting the second and third portions, respectively.

First claim

That which is claimed is:

1. A film dispenser comprising a holding member, the holding member comprising:
a first end; and
a second end joined to the first end, the holding member defining a longitudinal axis extending from the first end to the second end, the second end defining:
a brake portion defining a width measured in a direction perpendicular to the longitudinal axis and a length measured in a direction parallel to the longitudinal axis;
a connecting portion extending radially inward from the brake portion; and
a slot defined in the brake portion, the slot comprising a first portion extending in a circumferential direction across the width of the brake portion and a second portion and a third portion extending across the length of the brake portion, the second portion and the third portion distal from each other on opposing sides of the brake portion, the slot further comprising a fourth portion angled with respect to the second portion and a fifth portion angled with respect to the third portion, the fourth portion and the fifth portion extending in a circumferential direction, the fourth portion of the slot intersecting the second portion of the slot and the fifth portion of the slot intersecting the third portion of the slot.

2. The film dispenser of claim 1 , wherein the first end of the holding member comprises an exterior holding surface having a constant radius of curvature about the full circumference of the holding member.

3. The film dispenser of claim 1 , wherein the first end of the holding member comprises a handle and defines an interior holding surface and wherein the interior holding surface is curved and has a radius of curvature that is not concentric with the longitudinal axis.

4. The film dispenser of claim 1 , wherein the first end of the holding member comprises a blend extending along the circumference of a central hole of the holding member.

5. The film dispenser of claim 1 , wherein the first end of the holding member defines a chamfered region extending from an edge of a central hole of the holding member.

6. The film dispenser of claim 5 , wherein the first end of the holding member defines two chamfered regions extending from an edge of a central hole of the holding member and positioned opposite each other relative to the longitudinal axis.

7. The film dispenser of claim 1 , wherein each of the fourth portion and the fifth portion of the slot extends in a circumferential direction at least partially across the width of the brake portion.

8. The film dispenser of claim 1 , wherein the fourth portion is angled at 90 degrees with respect to the second portion and the fifth portion is angled at 90 degrees with respect to the third portion.

9. The film dispenser of claim 1 , wherein the fourth portion of the slot begins at an end point of the second portion of the slot and the fifth portion of the slot begins at an end point of the third portion of the slot.

10. The film dispenser of claim 9 , further comprising a rotating member comprising a first end and a second end, the rotating member defining an axis of rotation that extends from the first end to the second end, the longitudinal axis of the holding member aligned with the axis of rotation of the rotating member; wherein the first end of the holding member comprises an inside extremity and a distance from the inside extremity of the first end of the holding member to the snap measured in direction that is parallel to the longitudinal axis of the holding member is greater than an overall length of the rotating member measured in direction that is parallel to the axis of rotation of the rotating member, the rotating member able to fit between the snap and the inside extremity of the first end of the holding member.

11. The film dispenser of claim 1 , wherein the holding member further comprises a snap proximate to an outside extremity of the second end of the holding member, the defining a slot.

12. The film dispenser of claim 11 , wherein the snap has a ramp surface angled from the longitudinal axis and configured to provide a camming motion to the snap as the holding member is inserted into the rotating member.

13. A method of braking a film dispenser, the method comprising:
holding the film dispenser by gripping an interior holding surface and an exterior holding surface of a holding member of the film dispenser, the holding member comprising a first end, a second end, and a brake portion, the holding member defining a longitudinal axis that extends from the first end to the second of the holding member;
dispensing film from a film roll of the film dispenser by rotating the film roll about the second end of the holding member, the longitudinal axis of the holding member aligned with an axis of rotation of the film roll; and
braking the film dispenser by pressing the brake portion of the holding member to at least indirectly engage the brake portion with the film roll to increase a tension in the film being dispensed, the brake portion comprising a width and a length, the brake portion defined in the second end of the holding member by a slot, the slot comprising a first portion extending in a circumferential direction across the width of the brake portion and a second portion and a third portion extending across the length of the brake portion, the first portion and the second portion of the slot distal from each other on opposing sides of the brake portion, the slot further comprising a fourth portion and a fifth portion extending in a circumferential direction, the fourth portion of the slot intersecting the second portion of the slot and the fifth portion of the slot intersecting the third portion of the slot.

14. The method of claim 13 , wherein each of the fourth portion and the fifth portion of the slot extend at least partially across the width of the brake portion.

15. The method of claim 13 , wherein the film dispenser further comprises a rotating member comprising a first end and a second end, the rotating member defining an axis of rotation that extends from the first end to the second end, the longitudinal axis of the holding member aligned with the axis of rotation of the rotating member.

16. The method of claim 15 , wherein the holding member further comprises a snap proximate to an outside extremity of the second end of the holding member.

17. The method of claim 16 , wherein the snap defines a slot.

18. The method of claim 16 , wherein the first end of the holding member comprises an inside extremity and a distance from the inside extremity of the first end of the holding member to the snap measured in direction that is parallel to the longitudinal axis of the holding member is greater than an overall length of the rotating member measured in direction that is parallel to the axis of rotation of the rotating member, the rotating member configured to fit between the snap and the inside extremity of the first end of the holding member.

19. The method of claim 15 , wherein the first end of the holding member defines a chamfered region extending from an edge of a central hole of the holding member, the method further comprising contacting the chamfered region with a hand of the user.

20. The method of claim 19 , wherein the first end of the holding member defines two chamfered regions extending from an edge of a central hole of the holding member and positioned opposite each other relative to the longitudinal axis, the method further comprising contacting both chamfered regions with a hand of the user.

Assignees

• Pratt Corrugated Holdings Inc

Inventors

• Stanton Christopher M

Classifications

• B65H75/30 Primary

  Arrangements to facilitate driving or braking · CPC title

• B65H16/005

  Dispensers, i.e. machines for unwinding only parts of web roll · CPC title

• B65H2701/1752

  Polymer film · CPC title

• B65H75/406

  hand-held during use (B65H75/48, B65H75/4473 take precedence) · CPC title

• B65H75/185 Primary

  End caps, plugs or adapters · CPC title