Browse Prior Art Database

Flex-finger Brake

IP.com Disclosure Number: IPCOM000060646D
Original Publication Date: 1986-Apr-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Rachui, RA: AUTHOR

Abstract

Figs. 1 And 2 Illustrate a One Piece Brake And Tensioning Device for a Thin Flexible Film Contained Within a Housing.. April 1986

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 1

Flex-finger Brake

Figs. 1 And 2 Illustrate a One Piece Brake And Tensioning Device for a Thin Flexible Film Contained Within a Housing.. April 1986

The path of the film 1 is from a supply spool (not shown) between a back-up post 2 and flexible member 5 which is anchored in a housing. The film path continues around a free-to-pivot roller 3, around guide roller 4, and then exits the housing which is not shown. Film is taken up by an over-driven friction drive take-up spool which is not shown as film 1 is pulled by the take-up spool. The member 5 will flex first in the small cross- sectional area 6, but remain pinched at the back-up post 2. When the film tension reaches a specified amount which surpasses the flex strength of area 7, the film 1 is released to be taken up by the driven take-up spool. When film is not being taken up, film tension drops, flexible member 5 pinches film 1 against stop post 2 immediately, as thin area 6 takes up all developed slack in the film. The take-up spool will always see the same resistive force from the film. The size of the supply spool will have no bearing on the amount of force needed to peel off the film since the stop will hold the film until a certain film tension is reached.

Disclosed anonymously.

1