Fan-folded sheet stock material support for use with a dunnage conversion machine and method

Patent metadata

Field	Value
Publication number	US-11358361-B2
Application number	US-201716345468-A
Country	US
Kind code	B2
Filing date	Oct 26, 2017
Priority date	Oct 27, 2016
Publication date	Jun 14, 2022
Grant date	Jun 14, 2022

Abstract

A supply of single-ply, fan-folded sheet stock material (100) includes a holder that has inclined support surfaces (114, 116, 120, 122) and intersecting support walls (124, 126) that support the support surfaces in their inclined orientations. The holder has a W-shape cross-section, with inclined outer support surfaces (114, 116) and inclined inner support surfaces (120, 122) that may meet in the middle. The inner support surfaces generally are perpendicular to adjacent outer support surfaces to support a generally rectangular stack (102) and sub-stacks (110, 112) of single-ply, fan-folded sheet stock material. A method includes laying open a stack of single-ply fan-folded sheet stock material to form two sub-stacks of sheet stock material and operating a dunnage conversion machine to simultaneously draw sheet stock material from both sub-stacks of sheet stock material, thereby providing a two-ply sheet stock material for conversion into a dunnage product.

First claim

The invention claimed is:

1. A holder for a supply of sheet stock material comprising
a pair of spaced-apart outer support surfaces that are inclined in opposing directions, such that each outer support surface has an upper face facing inwardly; and
a pair of inner support surfaces inwardly positioned relative to the outer support surfaces and inclined in opposing directions, such that each inner support surface has an upper face facing outwardly, each inner support surface extending generally perpendicular to a respective adjacent outer support surface.

2. The holder as set forth in claim 1 , further comprising a pair of laterally spaced apart upright support walls that secure the outer support surfaces and the inner support surfaces in their respective inclined orientations.

3. The holder as set forth in claim 1 , where a cross-section including both the outer support surfaces and the inner support surfaces has a W-shape, with the outer support surfaces defining the outer legs of the W-shape cross-section and the inner support surfaces defining the inner legs of the W-shape cross-section.

4. In combination, a dunnage conversion machine that converts sheet stock material into a relatively lower-density dunnage product, and the holder as set forth in claim 1 for the supply of sheet stock material adjacent the conversion machine to support sheet stock material for conversion into a dunnage product.

5. The combination of claim 4 , further comprising a supply of single-ply, fan-folded sheet stock material arranged in a generally rectangular stack and supported on the holder.

Assignees

• Ranpak Corp

Inventors

• Cheich Robert C
• Stewartson Brian H

Classifications

• B31D2205/0035

  as fan folded web · CPC title

• B65H20/26

  Mechanisms for advancing webs to or from the inside of web rolls · CPC title

• B31D5/0039 Primary

  for making dunnage or cushion pads · CPC title

• B31D2205/0082

  General layout of the machinery or relative arrangement of its subunits · CPC title

• B31D2205/0047

  Feeding, guiding or shaping the material · CPC title