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WEIGHTED PINCH ROLLS Disclosure Number: IPCOM000023528D
Original Publication Date: 1977-Dec-31
Included in the Prior Art Database: 2004-Mar-31

Publishing Venue

Xerox Disclosure Journal


Referring to Figures 1 and 2, a drive roll 100 is rotatably supported on the sidewalls 102 and 104 of a stationary frame. Also supported by the sidewalls is a lower guide plate 106. A plurality of screws 108 extend through the sidewalls 102 and 104 into a mounting plate 110 for securing the guide plate 106 to the frame. A pinch roll assembly frame 112 is secured by any well-known means to another portion 114 of the stationary support frame. The frame 112 comprises an upper guide plate 116 and a pair of sidewalls 118 extending upwards therefrom. A shaft 120 is supported on the sidewalls 118. A pair of links 122, 124 is pivotally mounted on the shaft 120 and retained in position thereon by retainer rings 121. A shaft 123 is rotat-ably supported by the link 122 and the link 124. Pinch rolls 126, 130 and guide roll 128 are secured to the shaft 123 for rotation therewith by set screws 132 which extend through a collar extension 134 of the pinch roll. A weight 136 and weight 138 fit over the links 122 and 124, respectively, and are secured thereto by set screws 140. The weights 136 and 138 place a biasing force on the pinch rolls 126 and 130 to main-tain a given force between the pinch rolls and the drive roll