Browse Prior Art Database

Interlock Latch Keeper

IP.com Disclosure Number: IPCOM000085540D
Original Publication Date: 1976-Apr-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 47K

Publishing Venue

IBM

Related People

Mott, WE: AUTHOR [+2]

Abstract

An interlock latch keeper mechanism for preventing the burglarizing of a security enclosure includes means for interlocking the door, in the event that the primary latching system is tampered with.

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Interlock Latch Keeper

An interlock latch keeper mechanism for preventing the burglarizing of a security enclosure includes means for interlocking the door, in the event that the primary latching system is tampered with.

Plate assembly 10 contains two projections 1 and 2. Projection 1 is slotted and contains pivot pin 7 which allows interlock latch lever 3 to freely pivot. Latch lever 3 contains projection 4 immediately in contact with the surface of primary lock 12. End 6 of lever 3 straddles undercut groove 14 in interlock pin 5 and surface 15 of lever 3 is flush with surface 16 of the block 2.

Compression spring 13 is grounded to the surface 17 of block 2 and the other end is against shoulder 18 of interlock pin 5. Compression spring 13 forces interlock pin 5 into engagement with latch lever 3 at upper shoulder 19 of the undercut groove in the pin 5.

Primary locking mechanism 12 contains bolt 11 that is immediately adjacent to lug 20 on plate assembly 10. This bolt 11 is shown in its locked position, and in this position, it prevents the sliding locking bar, not shown, of the security enclosure from moving, thus keeping the door of the security enclosure from being opened.

If an attempt is made to burglarize the safe by knocking the primary lock 12 out of engagement, the movement of lock 12 would cause latch lever 3 to pivot out of engagement with interlock pin 5. Interlock pin 5 will then be driven by compression spring 13 into engagement with a recessed hole...