Browse Prior Art Database

LATCH FOR DOCUMENT HANDLER

IP.com Disclosure Number: IPCOM000025070D
Original Publication Date: 1983-Jun-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 80K

Publishing Venue

Xerox Disclosure Journal

Abstract

A magnetic latch for holding down the platen cover of a document handler over the platen of a copier. The assembled latch magnet unit is designed to latch (mate with) a steel plate on the surface of the copier. The component parts include a steel center plate 1 and two identical steel end plates 2 with different hole sizes and shapes from the center plate, and two magnets 3 sandwiched therebetween.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 72% of the total text.

Page 1 of 2

/(EROX DISCLOSURE JOURNAL

LATCH FOR DOCUMENT HANDLER Paul V. Sadwick
Theodore L. Sherwood

Proposed Classification
U.S. Cl. 355/75 Int. C1. G03b 27/62

4'

Volume 8 Number 3 May/June 1983 27 1

[This page contains 1 picture or other non-text object]

Page 2 of 2

LATCH FOR DOCUMENT HANDLER (Cont'd)

A magnetic latch for holding down the platen cover of a document handler over the platen of a copier. The assembled latch magnet unit is designed to latch (mate with) a steel plate on the surface of the copier. The component parts include a steel center plate 1 and two identical steel end plates 2 with different hole sizes and shapes from the center plate, and two magnets 3 sandwiched therebetween.

- It has been found that a lower cost latch, providing a much stronger hold-down force with less magnetic material, can be provided by providing freely pivotable, self-aligning, movement of the two outer shoes or end plates 2 of the magnet about a central pivot pin 4. The center plate 1 also provides rigidity and support for the two layers 3 of magnetic material, which are a rubber-like material. Because the two outer shoes are independently movable relative to one another they can both make a completely flush contact with the mating latch surface to complete the magnetic circuit, regardless of minor variations in the angle of that mating surface or variations in the alignment of the platen cover. This pivotable movement is assisted by thin Mylar spacers 5 between the magnetic mat...