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Browse Prior Art Database

Cam-Lifting Device

IP.com Disclosure Number: IPCOM000051910D
Original Publication Date: 1981-Apr-01
Included in the Prior Art Database: 2005-Feb-11
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Walker, LA: AUTHOR

Abstract

This article describes a lifting mechanism which lifts and supports a stack of sheets while incoming sheets are inserted under the stack. The mechanism includes a plurality of cams mounted in spaced relation on a motor-driven shaft.

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Cam-Lifting Device

This article describes a lifting mechanism which lifts and supports a stack of sheets while incoming sheets are inserted under the stack. The mechanism includes a plurality of cams mounted in spaced relation on a motor-driven shaft.

Fig. 1 illustrates a single-revolution device that initially pushes the rear edge of a sheet 3 forward into the stack. The arrow indicates the direction of rotation of the device. A row of kicker cams 4 (Fig. 2) rotates about shaft 5 and has profiles (Figs. 1 and 3) that present a polished surface 6 to the sheet's edge. During the forward motion of the sheets, the sheets are captured between plates 7 that are slotted for each cam. The plates guide the sheets as they are inserted under the stack.

The completion of the cam's pushing action coincides with the end of possible sheet travel due to mechanical stops (not shown) disposed at the back of the stack. The cam then continues to rotate until it reaches its home position. At the home position, the cam nodules 8 (Fig. 3) lift the front of the stack out of the way for the next incoming sheet (not shown).

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