Browse Prior Art Database

Sheet Supply Cassette for Copiers

IP.com Disclosure Number: IPCOM000049108D
Original Publication Date: 1982-May-01
Included in the Prior Art Database: 2005-Feb-09
Document File: 2 page(s) / 53K

Publishing Venue

IBM

Related People

Wilson, CC: AUTHOR [+2]

Abstract

A sheet supply cassette formed in a curved configuration presents minimum outward extension from the receiving copier, but is easily assembled with relatively low cost, interlocking elements including self-aligning features.

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Sheet Supply Cassette for Copiers

A sheet supply cassette formed in a curved configuration presents minimum outward extension from the receiving copier, but is easily assembled with relatively low cost, interlocking elements including self-aligning features.

Fig. 1 shows cassette 10 inserted into a receiving slot, shown generally at 11, into the frame of copier 12. Copier 12 includes a sloped guide, such as 15, on each side to provide self-alignment through reception of nubs, such as 16, on cassette 10. As shown, cassette 10 is open at face 18 to receive sheets of paper. The lower end 20 of cassette 10 opens upwardly to receive shingler 21 for feeding sheets internally into copier 12.

Cassette 10 is shown in isometric view in Fig. 2, and in an exploded and disassembled view in Fig. 3, wherein the lower portion 25 is formed with a series of generally triangularly shaped ribs 26 to provide relatively smooth insertion of paper entering from open face 18 over floor plate 40 in the lower storage tray area 27. Upper cover 30 snaps over lower portion 25 to form the cassette and includes an exit tray portion 31 formed so as to overlie the lower tray portion 25 when 30 and 25 are snapped together. Nubs 16 and 17 are formed integrally with upper portion 30 for self-alignment. as shown in Fig. 1.

The backup or floor plate 40, along with its retaining leaf spring 41, provides nip pressure between the paper supply within the cassette and the feed rolls 21. Slots 42 and 43 ret...