Abstract: The present invention comprises a kit of a restraint ring, a base and a quick release, tamper resistant fastener. The base is adapted to attach to a fixture. The fixture may be a bed, chair, floor or wall. The base may be attached to the bed, for example, by a connecting rod extending under the bed or pierced through the bed. The connecting rod may be adapted to receive a quick release fastener or threaded through fastener to secure the restraint ring to the connecting rod. The base may be seated in the sidewall if the rod is pierced through the bed or comprise a flange to bear on the bed. The base is adapted to releasably receive the quick release fastener thereby attaching the restraint ring to the base.

Abstract: A system for connecting side rails of a bed frame with a headboard and/or footboard. A hook plate is affixed to the side rails and has a pair of hooks extending outwardly from the ends of the side rails. The hooks form slots in the hook plates and the slots have forward edges formed at a predetermined angle with respect to the vertical. A receiver housing is affixed to the headboard and/or footboard and has a vertical opening with a pair of transverse pins that span that opening. The side rails are affixed to the headboard and/or footboard by inserting the hooks into the vertical opening to engage the pins. A lever arm, pivotally affixed to the receiver housing, can be pivoted to force the hook plate downwardly to forcefully engage and lock the forward edge of the slots with the pins.

Abstract: A concealed fixing device comprises an insert embedded within a first member, an elongate threaded bar connected to the first member and passing through a second member through a concealed hole to a concealed chamber within the second member. A combined nut and washer assembly applied to the threaded bar tightens the first and second members.

Abstract: A wooden frame or the like having two frame parts abutting at a joint and having a tensioning-eccentric connector, the two frame parts each having a borehole which extends perpendicular to the joint and each having a preferably round recess at the end of each borehole, a round tensioning eccentric being adapted to be inserted turnably into the recess of one of the frame parts and a tension bolt being adapted to be introduced into each borehole, the clamping end of which bolt engages into the tensioning eccentric and the fastening end thereof is held fast in the recess of the other frame part by a holder. The holder comprises an abutment stop part which is fixed on the fastening end of the tension bolt, the length of which abutment stop part in the circumferential direction of the recess which receives the abutment stop part being greater than the diameter of the corresponding borehole.