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Self Storing Door Latching Device

IP.com Disclosure Number: IPCOM000098684D
Original Publication Date: 1959-Oct-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Froehlich, FB: AUTHOR

Abstract

In certain applications it may be desirable to have a cabinet door which may be opened by pivoting the door outwardly, and then sliding the door into the cabinet for storage. For improved operation, such a door may require a latch device which prevents the door from sliding into the cabinet while it is being pivoted and until the door reaches a predetermined position.

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Self Storing Door Latching Device

In certain applications it may be desirable to have a cabinet door which may be opened by pivoting the door outwardly, and then sliding the door into the cabinet for storage. For improved operation, such a door may require a latch device which prevents the door from sliding into the cabinet while it is being pivoted and until the door reaches a predetermined position.

The drawing shows a closure operated reversible type mechanical latch device 1 adapted to a slidable support 2 for a pivotally mounted door 3. When door 3 is pivoted counterclockwise (CCW) about shaft 4 to a horizontal position in an opening action, its upper edge contacts bell crank 5, causing it to rotate clockwise (CW) about pivot 6 against spring 7. This action causes interposer 8, pivotally mounted on crank 5 and contacting projection 9 of drum 10, to revolve CW about pivot 6. This in turn results in a CW rotation of drum 10 about shaft 11 against spring 12 and subsequent lowering of bolt 13 out of hole 14 in frame 15 by lever 16 attached to drum 10. Support 2 may now slide, as urged by spring 17, along track 18.

As support 2 so slides, stud 19 strikes interposer 8 disengaging it from projection 9 allowing drum 10 to rotate CCW with spring 12 and subsequently raise bolt 13 to butt against the underside of frame 15. Bolt 13 is now readied for returning to hole 14 on a later withdrawal of support 2. On such withdrawal, bolt 13 finds hole 14, limiting outward trav...