Conveyor belt having rollers as tensile members

• US 7,886,892 B2
• Filed: 04/13/2007
• Issued: 02/15/2011
• Est. Priority Date: 01/26/2006
• Status: Active Grant

• Current Assignee: Laitram LLC
• Original Assignee: Laitram LLC
• Inventors: Fourney, Matthew L.
• Primary Examiner(s): Crawford; Gene
• Assistant Examiner(s): Singh; Kavel
• Application Number:
  US11/735,029
• Publication Number:
  US 20070181402A1
• Time in Patent Office: 1,404 Days
• Field of Search: 198/779, 198/370.03, 198/828, 198/827, 198/848, 198/835, 198/844.1
• US Class Current: 198/370.03
• CPC Class Codes: B65G 17/24 comprising a series of rollers which are moved , e.g. over a supporting surface, by the traction element to effect conveyance of loads or load-carriers
• CPC Class Codes: B65G 47/34 Devices for discharging articles or materials from conveyor B65G47/256 takes precedence

Abstract

A conveyor belt including a plurality of rollers that serve as tensile members for the conveyor belt. In some embodiments, the rollers include roller members that rotate about longitudinal shafts, wherein the roller shafts receive and transmit tensile forces along a longitudinal direction of the conveyor belt. In some embodiments, nothing exists between adjacent roller members across a width of the conveyor belt.

Claims

1. A conveyor belt comprising:

a longitudinal direction that coincides with a direction of belt travel; and

a plurality of rollers extending across a width of the conveyor belt, wherein the rollers serve as tensile members of the conveyor belt such that tensile forces imposed upon the conveyor belt along the longitudinal direction are received and transmitted by the rollers and wherein no belt component is positioned between adjacent rollers across the width of the conveyor belt, wherein the rollers comprise longitudinal shafts and roller members that can be rotated about the longitudinal shafts and wherein the longitudinal shafts are aligned with the longitudinal direction of the belt and receive and transmit the tensile forces along the longitudinal direction of the conveyor belt.

2. The conveyor belt of claim 1, wherein the rollers are oriented such that their axes of rotation align with the longitudinal direction of the conveyor belt.

3. The conveyor belt of claim 1, wherein the longitudinal shafts have offset ends that enable adjacent rollers along the longitudinal direction of the conveyor belt to align with each other.

4. The conveyor belt of claim 1, further comprising transverse shafts that extend across a width of the conveyor belt and wherein the rollers pivotally connect to the transverse shafts such that the longitudinal shafts and no other components extend between adjacent transverse shafts along the longitudinal direction of the conveyor belt.

5. The conveyor belt of claim 4, further comprising spacer members provided on the transverse shafts that space adjacent rollers from each other along the width of the conveyor belt.

6. The conveyor belt of claim 1, wherein each roller comprises a roller member having a roller body and a high-friction outer layer provided on an outer surface of the roller body.

7. The conveyor belt of claim 6, wherein each roller body comprises two halves that snap fit together to form the roller body.