Browse Prior Art Database

Capstan Drive and Clutch Mechanism

IP.com Disclosure Number: IPCOM000095314D
Original Publication Date: 1965-Nov-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Pearson, ES: AUTHOR [+2]

Abstract

This mechanism stops or drives a capstan in either a forward or a backward direction by engaging a clutch disc with a selector disk. This is driven against either backward or a forward rotating drive wheel. Two drive wheels 10 and 12 are driven in forward and reverse directions, respectively, by either a belt or other drive arrangements. Selector disk 14 is held by either a moving coil or other mechanical linkage, not shown, either against the forward or against the reverse rotating drive wheel. Such causes disk 14 to rotate in either a forward or a reverse direction.

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Capstan Drive and Clutch Mechanism

This mechanism stops or drives a capstan in either a forward or a backward direction by engaging a clutch disc with a selector disk. This is driven against either backward or a forward rotating drive wheel. Two drive wheels 10 and 12 are driven in forward and reverse directions, respectively, by either a belt or other drive arrangements. Selector disk 14 is held by either a moving coil or other mechanical linkage, not shown, either against the forward or against the reverse rotating drive wheel. Such causes disk 14 to rotate in either a forward or a reverse direction.

Clutch disk 16 is attached to rotatable shaft 20 via flexible membrane 22. Shaft 20 drives rotating capstan 21 which can be used for moving magnetic tape. Disk 16 can be moved into contact with either stop surface 18 or a surface presented to it by disk 14 by slidable shaft 24. The latter is attached to a moving coil actuator or other suitable mechanical linkage not shown.

Normally, disk 14 is held against wheel 10. In this mode, forward motion of capstan 21 is effected by axially moving disk 16 into engagement with disk 14. Reverse motion is obtained by moving disk 14 against wheel 12. Flexible member 22 reduces axial forces on shaft 20 by flexing in response to axial motion of disk 16.

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