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IP.com Disclosure Number: IPCOM000038824D
Original Publication Date: 1987-Mar-01
Included in the Prior Art Database: 2005-Feb-01
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Fathergill, RD: AUTHOR

Abstract

The top sheet of a stack of sheets of paper is fed therefrom by a relatively low cost feeder. A tray 1 (Fig. 1) has a stack 2 of sheets of paper disposed therein. A wheel 3, which has its shaft 4 (Fig. 2) disposed in vertical slots 5 in parallel walls 6 (one shown) of the tray 1, rides on a top sheet 7 (Fig. 1) of paper of the stack 2. When a solenoid 8, which is mounted on the shaft 4 of the wheel 3, is energized, a rubber tip 9 on the end of a plunger 10 of the solenoid 8 moves the top sheet 7 of paper up an inclined wall 11 of the tray 1 and out of the tray 1 so that one sheet of the stack 2 is fed at a time. The wheel 3 functions as a brake during retraction of the plunger 10 of the solenoid 8 upon completion of feeding of the top sheet 7 of the stack 2 from the tray 1.

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Paper Feed

The top sheet of a stack of sheets of paper is fed therefrom by a relatively low cost feeder. A tray 1 (Fig. 1) has a stack 2 of sheets of paper disposed therein. A wheel 3, which has its shaft 4 (Fig. 2) disposed in vertical slots 5 in parallel walls 6 (one shown) of the tray 1, rides on a top sheet 7 (Fig. 1) of paper of the stack 2. When a solenoid 8, which is mounted on the shaft 4 of the wheel 3, is energized, a rubber tip 9 on the end of a plunger 10 of the solenoid 8 moves the top sheet 7 of paper up an inclined wall 11 of the tray 1 and out of the tray 1 so that one sheet of the stack 2 is fed at a time. The wheel 3 functions as a brake during retraction of the plunger 10 of the solenoid 8 upon completion of feeding of the top sheet 7 of the stack 2 from the tray 1. By the wheel 3 riding on the top of the stack 2, the height adjustment of the solenoid 8 relative to the top sheet 7 of the stack 2 is maintained. The slots 5 (Fig. 2) enable the wheel 3 to follow the top of the stack 2 (Fig. 1).

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