Braking wrap dispenser

Patent metadata

Field	Value
Publication number	US-9272870-B2
Application number	US-201314108881-A
Country	US
Kind code	B2
Filing date	Dec 17, 2013
Priority date	Dec 17, 2013
Publication date	Mar 1, 2016
Grant date	Mar 1, 2016

Abstract

A film dispensing apparatus for dispensing film from a film roll is disclosed that in certain embodiments has an exterior holding surface of a holding member that is concentric with the axis of rotation of a rotating member when looking at the apparatus along its radial direction. In other embodiments, the film dispensing apparatus includes a brake portion found in the interior of the holding member that is operatively associated with an interior holding surface such that when a user presses onto the interior holding surface with sufficient force, it causes the brake portion to flex and contact the rotating member, resulting in the film being dispensed with more tension as the user pulls on the apparatus to unwind the film.

First claim

That which is claimed is:

1. A film dispenser comprising:
a holding member including a first end and a second end, the holding member defining a longitudinal axis that extends from the first end to the second end, the holding member further including a connecting portion that is located toward an interior of the holding member along the longitudinal axis and away from an outside extremity of the first end of the holding member, the connecting portion extending in a plane that is perpendicular to the longitudinal axis, the holding member further including a rail adjacent to the connecting portion and a brake portion adjacent to the connecting portion, the rail including an interior holding surface;
a rotating member including 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;
wherein said longitudinal axis of the holding member is aligned with the axis of rotation of the rotating member, and wherein said first end of the holding member includes an exterior holding surface that has a radius of curvature that is concentric with the longitudinal axis of the holding member;
wherein the connecting portion and the brake portion are on the second end of the holding member and a slot is on the second end of the holding member in a vicinity of the connecting portion and brake portion, the slot including portions extending parallel to the longitudinal axis and portions extending in a plane that is perpendicular to the longitudinal axis and wherein the rail is on the first end of the holding member;
wherein the brake portion includes a width and wherein the slot has three portions that extend in a direction that is perpendicular to the longitudinal axis of the holding member, a first of the three portions being located nearer an exterior of the holding member along the longitudinal axis and extending completely across a width of the brake portion, and a second portion and a third portion of the three portions being located nearer the interior of the holding member along the longitudinal axis and extending only partially across the width of the brake portion.

2. The film dispenser of claim 1 , wherein the first end of the holding member is a handle and includes an interior holding surface.

3. The film dispenser of claim 2 , wherein said 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 outside extremity at the first end of the holding member is spaced away from the first end of the rotating member by at least an amount greater than 0.25 inches.

5. The film dispenser of claim 1 , wherein the holding member further includes a transition portion attaching the rail to the connecting portion.

6. The film dispenser of claim 1 , wherein the brake portion is operatively associated with the rotating member.

7. The film dispenser of claim 1 , wherein the second end of the holding member includes an outside extremity, said film dispenser further comprising a snap that is proximate to an outside extremity of the second end of the holding member.

8. The film dispenser of claim 7 , wherein the holding member further includes a plurality of snaps proximate to an outside extremity of the second end of the holding member, said snaps being defined by a slot that includes portions extending in a direction that is parallel to the longitudinal axis and portions extending in a direction that is perpendicular to the longitudinal axis of the holding member.

9. The film dispenser of claim 8 , wherein the first end of the holding member includes an inside extremity and a distance from the inside extremity of the first end of the holding member to the snaps is greater than an overall length of the rotating member measured in direction that is parallel to the longitudinal axis of the holding member, allowing the rotating member to fit between and abut the snaps and the inside extremity of the first end of the holding member.

10. The film dispenser of claim 1 , wherein the rotating member includes a nominal wall and the first end of the rotating member includes an abutment portion that has a thickness along the axis of rotation that is the same as the nominal wall of the rotating member and extends annularly in a direction that is perpendicular to the axis of rotation.

11. The film dispenser of claim 10 , wherein the second end of the rotating member includes a sleeve portion that has a thickness in a direction that is perpendicular to the axis of rotation that is the same as the nominal wall of the rotating member and that extends in a direction that is parallel to the axis of rotation.

12. The film dispenser of claim 11 , wherein an exterior cylindrical surface of the sleeve portion of the rotating member includes a plurality of ribs.

13. A film dispenser of claim 1 , wherein the holding member includes a nominal wall and the outside extremity of the first end of the holding member is spaced away from the second end of the holding member by a predetermined distance that is greater than the nominal wall of the holding member.

14. The film dispenser of claim 1 , wherein both the holding member and the rotating member include annular configurations.

15. A method of dispensing film from a film roll using a film dispenser, the method comprising:
obtaining a film dispenser, the film dispenser including
a holding member including an interior holding surface and an exterior holding surface along a radial direction of the holding member, the holding member further including a first end and a second end, the holding member defining a longitudinal axis that extends from the first end to the second end, the holding member further including a connecting portion that is located toward an interior of the holding member along the longitudinal axis and away from an outside extremity of the first end of the holding member, the connecting portion extending in a plane that is perpendicular to the longitudinal axis, the exterior holding surface having a radius of curvature, the holding member further including a rail adjacent to the connecting portion and a brake portion adjacent to the connecting portion, the rail including an interior holding surface;
a rotating member including 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;

inserting the rotating member into the film roll;
inserting the holding member into the rotating member until the holding member is rotatably attached to rotating member and the radius of curvature of the exterior holding surface is concentric with the axis of rotation of the rotating member;
holding onto the interior holding surface and the exterior holding surface found on the holding member simultaneously;
dispensing the film; and
pressing onto the brake portion to increase a tension found in the film being dispensed;
wherein the connecting portion and the brake portion are on the second end of the holding member and a slot is on the second end of the holding member in a vicinity of the connecting portion and brake portion, the slot including portions extending parallel to the longitudinal axis and portions extending in a plane that is perpendicular to the longitudinal axis and wherein the rail is on the first end of the holding member;
wherein the brake portion includes a width and wherein said slot has three portions that extend in a direction that is perpendicular to the longitudinal axis of the holding member, a first of the three portions being located nearer an exterior of th

Assignees

• Pratt Corrugated Holdings Inc

Inventors

• Stanton Christopher M

Classifications

• B65H75/185 Primary

  End caps, plugs or adapters · CPC title

• B65H16/005 Primary

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

• B65B67/085

  using hand-held dispensers for stretch films · CPC title

• B65H2701/1752

  Polymer film · CPC title

• B65H75/30 Primary

  Arrangements to facilitate driving or braking · CPC title