Browse Prior Art Database

Latching Device

IP.com Disclosure Number: IPCOM000097826D
Original Publication Date: 1961-Aug-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Johnston, HT: AUTHOR

Abstract

The device is a manually operated latch for a machine cabinet cover or door. The holding portion of the latch comprises a brush. Its bristles cooperate with the inside of a cylinder to provide a gouging action preventing removal of the latch once it is inserted.

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Latching Device

The device is a manually operated latch for a machine cabinet cover or door. The holding portion of the latch comprises a brush. Its bristles cooperate with the inside of a cylinder to provide a gouging action preventing removal of the latch once it is inserted.

The latch bristles 10 (top drawing) are shown inserted in cylinder 11 which is fastened to the fixed cabinet frame 12. Plunger 13, upon which 10 are attached, extends through a coil spring 14. It ends in a large button 15 which is guided in a cup-shaped holder 16 forming part of a movable machine cover or door.

When it is desired to close and lock the cover, the panel 16 is brought against frame 12 and a flexible washer 17 is pressed against the frame. This action inserts bristles 10 into cylinder 11 far enough to assume the slanted positions. Any effort to pull the cover, or jar the cover loose, is counteracted by the gouging action of 10 against the inside of cylinder 11. This is because stop pin 18 restricts outward movement of 13 when 15 is not depressed.

To open the panel 16 three steps are followed (lower drawings). First, it is required that button 15 be depressed further to the left until bristles 10 are projected all the way through and beyond cylinder 11. Then the button is released. As spring 14 forces the plunger and bristles to the right, they are slanted in such a direction as to offer no obstruction to the withdrawal of the bristles. Finally, the bristles are fully removed f...