Dunnage cut-assist biasing member

Patent metadata

Field	Value
Publication number	US-11897227-B2
Application number	US-202217588785-A
Country	US
Kind code	B2
Filing date	Jan 31, 2022
Priority date	Oct 2, 2015
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

Abstract

A conversion apparatus is provided herein. The conversion apparatus includes a cutting member having an edge configured for cutting the dunnage material. The conversion apparatus also includes a biasing member that is located adjacent to the cutting member such that the dunnage material passes between the biasing member and the cutting member. The biasing member operably contacts the dunnage material thereby biasing the dunnage material against the cutting member. The position of the biasing member relative to the cutting member is such that in response to the dunnage material being retracted back into the conversion apparatus the cutting member begins to sever the dunnage material, but in response to the dunnage material traveling in the dispensing direction the cutting member does not begin to sever the dunnage material due to the relative position.

First claim

What is claimed is:

1. A method for processing a dunnage material, the method comprising:
converting supply material into low-density dunnage and moving the dunnage in a dispensing direction along a material path;
bending, by a biasing member, the dunnage to deflect the material path around an end of a cutting member; and
in response to the dunnage being retracted back, causing the cutting member to begin to sever the dunnage material.

2. The method of claim 1 , further comprising bending the dunnage to provide an elbow in the material path where the dunnage is bent around the cutting member by moving the biasing member to a cutting position, wherein when the dunnage material is driven in a dispensing direction, the elbow in the dunnage material is biased away from the cutting member, and in a reverse direction the elbow is biased toward the cutting member to begin the severing of the dunnage.

3. The method of claim 2 , wherein moving the biasing member to the cutting position causes one or more fingers of the biasing member to fit within teeth of the cutting member.

4. The method of claim 2 , further comprising moving the dispensing member from the cutting position to a dispensing position in which the dunnage material is dispensed past the cutting member.

5. The method of claim 3 , further comprising rotating a drum contacts the dunnage material to advance the dunnage material in a first direction and retract the dunnage material in a second direction, wherein the drum drives a biasing linkage that actuates the biasing member.

6. The method of claim 1 , wherein the bending the dunnage to deflect the material path comprising forming a bend of at least 25°.

7. The method of claim 6 , wherein the bending the dunnage to deflect the material path comprising forming a bend of at least 45°.

8. The method of claim 1 , wherein converting supply material into low-density dunnage comprises crumpling the supply material.

9. The method of claim 1 , wherein bending the dunnage to deflect the material path comprises forcing, by the biasing member, the dunnage material against the cutting member when the biasing member is in a cutting position.

10. The method of claim 1 , wherein, in the cutting position, the biasing member contacts the dunnage material downstream of the cutting member, and is out of contact with the dunnage material at a longitudinal location at which the dunnage material contacts the cutting member.

11. The method of claim 1 , further comprising moving the biasing member to a cutting position and biasing the dunnage material around the end in response to a driving mechanism driving the dunnage in a second direction opposite to a first direction that causes the dunnage material to be dispensed.

12. The method of claim 11 , further comprising moving the biasing member to a dispensing position away from the cutting member such that the dunnage material is not biased around the end of the cutting member.

13. The method of claim 1 , further comprising pivoting the biasing member between a cutting position for bending the dunnage to deflect the material path around the end of the cutting member and a dispensing position away from the cutting member to allow the crumpled dunnage to be dispensed past a cutting member.

14. A method for processing a dunnage material, the method comprising:
in a dunnage crumpling device, crumpling supply material into low-density dunnage and moving the dunnage in a dispensing direction along a material path while maintaining a biasing member in a dispensing position sufficiently spaced from the material path to allow the crumpled dunnage to be dispensed past a cutting member;
moving the biasing member from the dispensing position to a cutting position in bending, by a biasing member such that the biasing member deflects dunnage in the material path around an edge of the cutting member; and
with the biasing member in the cutting position, retracting the dunnage backwards, causing the cutting member to begin to sever the dunnage material.

15. The method of claim 14 , wherein the biasing member is moved from the dispensing position to the cutting position when the dispensing is stopped.

16. The method of claim 14 , wherein moving the biasing member from the dispensing position to the cutting position comprises pivoting the biasing member.

17. The method of claim 14 , wherein the biasing member is disposed further from the cutting member in the dispensing position than in the cutting position such that the dunnage material is not biased around the edge of the cutting member.

18. The method of claim 14 , wherein the cutting member comprises a blade oriented in a generally downstream direction along the material path.

19. The method of claim 14 , further comprising, upon severing the dunnage material:
moving the biasing member from the cutting position to the dispensing position; and
crumpling additional supply material into additional low-density dunnage and moving the additional dunnage in the dispensing direction such that the biasing member in the dispensing position allows the additional dunnage to be dispensed past the cutting member.

Assignees

• Pregis Innovative Packaging Llc

Inventors

• Wetsch Thomas D
• Tegel Robert

Classifications

• B31D5/0043 Primary

  including crumpling flat material · CPC title

• B31D5/0039

  for making dunnage or cushion pads · CPC title

• B65H35/008

  Arrangements or adaptations of cutting devices · CPC title

• B26D1/025

  for thin material, e.g. for sheets, strips or the like · CPC title

• B26D2001/006

  the cutting blade having a special shape, e.g. a special outline, serrations · CPC title