초록 ▼

An improved security hinge is provided in which security control wires pass through only one or two knuckles of a hinge whereby improved structural integrity of the hinge is achieved. Slots are cut through the body of the hinge which extend only part way through the thickness of the body of the hing

An improved security hinge is provided in which security control wires pass through only one or two knuckles of a hinge whereby improved structural integrity of the hinge is achieved. Slots are cut through the body of the hinge which extend only part way through the thickness of the body of the hinge, and which are located between fastener openings whereby the integrity of the body of the hinge is not impaired. Furthermore, the security control wires extend through only one or two knuckles of the hinge, leaving one or more knuckles undisturbed, whereby the structural integrity of the knuckle portion of the hinge is not impaired. In an alternative embodiment, a hollow sleeve is formed from hardened steel through which the security control wires pass, whereby even greater structural integrity is achieved.

대표청구항 ▼

A security hinge having electrical control wires passing axially in a completely uncoiled manner-- has been inserted; there through comprising a pair of cooperating leaves having fastener openings adapted to enable the attachment of the respective leaves to a fixed member and a movable member; each

A security hinge having electrical control wires passing axially in a completely uncoiled manner-- has been inserted; there through comprising a pair of cooperating leaves having fastener openings adapted to enable the attachment of the respective leaves to a fixed member and a movable member; each of said leaves including knuckle means adapted to align and co-engage to receive pin means to hold the knuckle means in vertical alignment; said knuckle means comprising at least two knuckles; each of the knuckle means including an aligned vertical axis and having aligned pin openings extending along said axis receiving the uncoiled electrical wires and the pin means to retain the assembly in place; each of said leaves including slot means extending generally transversely through the leaf and being spaced from said openings sufficiently to avoid reducing the structural integrity of the body of said leaves; each of said slots being in fluid communication with at least one opening extending from the end of the slot into an axial opening located within one of said knuckle means, the control wires extend through the slots in each of the leaves and through the openings in each of leaves and through the aligned openings along said vertical axis in the knuckles within said hinge, and said wires pass uncoiled through no more than two said knuckles; and the pin means including upper and lower pin members including a first upper pin member extending through the uppermost knuckles and a second lower pin member extending through the bottomost knuckles.