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US 4,342,207 AGranted
Safe relock mechanism
AssigneeDaniel L. Holmes
InventorsDaniel L. Holmes, Tim Uyeda
Life of this patent
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AssigneeDaniel L. Holmes
InventorsDaniel L. Holmes, Tim Uyeda
Estimating the term…
In a safe locking mechanism including a spindle which rotates a cam plate to extend or withdraw a plurality of locking bolts, a novel relock mechanism includes a floating hard plate interposed between the inside surface of the safe door and the cam plate. A plurality of springs are disposed between the interior surface of the safe door and the floating hard plate to bias the hard plate toward the cam plate. Each of the locking bolts includes a chordal notch therein to engage the edge of the hard plate and prevent retraction of the locking bolts. The cam plate includes raised camming rails which engage raised buttons on the hard plate, so that rotation of the camming plate releases the hard plate from the notches in the locking bolts and permits the bolts to be withdrawn only by rotation of the spindle.
In a safe locking mechanism which includes a plurality of retractable locking bolts extending from a safe door, said locking bolts being generally disposed in a common plane, a relock mechansim comprising a first plate disposed in the safe door and extending to said locking bolts, means on said locking bolts for releasably engaging peripheral edge portions of said first plate with said locking bolts in the extended position to block retraction of said locking bolts, means for urging said first plate toward said common plane to engage said means on said locking bolts, and means for disengaging said first plate from said locking bolts to permit retraction of said locking bolts by said locking mechanism.
In a safe locking mechanism which includes a plurality of retractable locking bolts extending linearly from a safe door, a relock mechanism comprising a non-rotatable first plate disposed in the safe door and extending to said locking bolts, means on said locking bolts for releasably engaging peripheral edge portions of said first plate with said locking bolts in the extended position to block retraction of said locking bolts, means for engaging said first plate and said means on said locking bolts independently of said locking mechanism, and means for disengaging said first plate from said locking bolts to permit retraction of said locking bolts by said locking mechanism.
In a safe locking mechanism which includes a plurality of retractable locking bolts extending from a safe door, a relock mechanism comprising a first plate disposed in the safe door and extending to said locking bolts, means on said locking bolts for releasably engaging peripheral edge portions of said first plate with said locking bolts in the extended position to block retraction of said locking bolts, means for disengaging said first plate from said locking bolts to permit retraction of said locking bolts by said locking mechanism, means for urging said first plate toward said means on said locking bolts to maintain said releasable engagement, said means on said locking bolts including a notch in each of said locking bolts disposed to receive a peripheral edge portion of said first plate, said notch extending chordally in a proximal end portion of each of said locking bolts, said locking mechanism including a rotatable cam plate operatively joined to said locking bolts to extend and retract said locking bolts, said first plate being disposed parallel and adjacent to said cam plate.
Dependencies are inferred from the claim text.