Browse Prior Art Database

Composite Drive Roll

IP.com Disclosure Number: IPCOM000085894D
Original Publication Date: 1976-Jun-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Richards, TM: AUTHOR [+2]

Abstract

A drive roll used to drive another element such as a capstan may be spring loaded into engagement for extended periods without rotation. This use requires not only a high-friction, wear-resistant surface, but also a resistance to compression set. A rubber drive roll, commonly used for such applications does not fulfill all the above requirements using a single formulation. capstan 11. As seen in the sectional view of Fig. 2 the drive roll 10 is formed as an inner layer 12 formed about an insert 13. The inner layer 12 is formulated to possess a high resistance to compression set, though such formulations have been found to have poor abrasion resistance. Vulcanized to the periphery is an outer layer 15 selected to possess a high-abrasion resistance.

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Composite Drive Roll

A drive roll used to drive another element such as a capstan may be spring loaded into engagement for extended periods without rotation. This use requires not only a high-friction, wear-resistant surface, but also a resistance to compression set. A rubber drive roll, commonly used for such applications does not fulfill all the above requirements using a single formulation. capstan 11. As seen in the sectional view of Fig. 2 the drive roll 10 is formed as an inner layer 12 formed about an insert 13. The inner layer 12 is formulated to possess a high resistance to compression set, though such formulations have been found to have poor abrasion resistance. Vulcanized to the periphery is an outer layer 15 selected to possess a high-abrasion resistance.

The composite drive roll 10 accomplishes the design requirements, because outer layer 15 is sufficiently thin to minimize the effect of compression set within that layer and the inner layer 12 has the resiliency to restore the periphery, dented by the capstan load, to a cylindrical configuration during a single revolution of the drive roll 10.

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