Browse Prior Art Database

Cartridge Reel Brake

IP.com Disclosure Number: IPCOM000042933D
Original Publication Date: 1984-Jun-01
Included in the Prior Art Database: 2005-Feb-04
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Rinkleib, HO: AUTHOR

Abstract

Two halves of a cartridge are shown in the figure, with the left half showing the cartridge reel at an at-rest mode and the right half showing the cartridge reel at the operating mode when in a drive system (not shown). The cartridge includes a reel 1 containing a web of material, such as a magnetic tape 2, on a hub 3. The hub 3 includes a "bevel teeth" arrangement 4 around its lower periphery which mates with a similar array 5 on the cartridge box 6 to act as a brake to prevent rotation of the reel 1. An idler button 7 is slidably mounted to the inner race of the hub 3 and contacts the cartridge cover 8. A compression spring 9 encircles the hub 3 for pressing the bevel teeth 4 of the reel 1 against the teeth 5 of the cartridge box 6 and for holding the idler button 7 against the cartridge cover 8.

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Cartridge Reel Brake

Two halves of a cartridge are shown in the figure, with the left half showing the cartridge reel at an at-rest mode and the right half showing the cartridge reel at the operating mode when in a drive system (not shown). The cartridge includes a reel 1 containing a web of material, such as a magnetic tape 2, on a hub 3. The hub 3 includes a "bevel teeth" arrangement 4 around its lower periphery which mates with a similar array 5 on the cartridge box 6 to act as a brake to prevent rotation of the reel 1. An idler button 7 is slidably mounted to the inner race of the hub 3 and contacts the cartridge cover 8. A compression spring 9 encircles the hub 3 for pressing the bevel teeth 4 of the reel 1 against the teeth 5 of the cartridge box 6 and for holding the idler button 7 against the cartridge cover 8. Thus at a rest mode, the reel is prevented from rotating by the reel brake. In the operating mode, an idler (not shown) enters the cartridge cover 8 to contact the idler button 7, and the reel drive (not shown) raises the hub 3 out of contact with the cartridge box 6 to compress the spring 9, as shown in the right side of the figure. The reel 1 is now free to rotate suspended in the cartridge by the drive system.

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