An elastic press-lock structure has a ring-shaped member and a connection assembly. The ring-shaped member is defined an elongated hole. The connection assembly is passed through the elongated hole of the ring-shaped member and detachably connected with the ring-shaped member. The connection assembly is pressed with a pressing force to deflect toward a first direction with an axle which is a predetermined position of the elongated hole so that the connection assembly is limited by the ring-shaped member which is deformed and the then the connection assembly is reset toward a second direction opposite to the first direction by a restoring force generated by the connection assembly while the pressing force is released.

An elastic press-lock structure has a ring-shaped member and a connection assembly. The ring-shaped member is defined an elongated hole. The connection assembly is passed through the elongated hole of the ring-shaped member and detachably connected with the ring-shaped member. The connection assembly is pressed with a pressing force to deflect toward a first direction with an axle which is a predetermined position of the elongated hole so that the connection assembly is limited by the ring-shaped member which is deformed and the then the connection assembly is reset toward a second direction opposite to the first direction by a restoring force generated by the connection assembly while the pressing force is released.

A remote overhead anchor for use at an elevated overhead position and adapted to be secured to a horizontally extending structural member. The anchor includes first and second substantially half ring members that are hinged together at their bottoms. The members can move between a closed position wherein they lie in substantially the same plane and an open position wherein the tops are separated from each other so that they lie in different planes. A spring biases the members into the closed position. The tops of the members include cam surfaces arranged such that when said first and second half ring members are moved upwardly and engage a horizontal structural member, the structural member causes the cam surfaces to move away from each other to move the half ring members into the open position. A spring biased lock prevents the half ring members from opening but can be deactivated remotely so that the anchor can be removed by a worker standing on the ground. A conically shaped receiver adjacent the bottom of the anchor receives the upper end of an elongated vertically extending pole for attaching and detaching the anchor to and from the overhead support.

An attachment device for installation onto a support, includes a pair of oppositely facing and laterally offset hooks rotatably mounted so as to be oppositely facing and laterally offset from one another; a stop defined on one of the hooks and located so that the other one of the hooks is prevented from rotating past the stop by contact with the stop; and a biasing member operatively associated with the pair of hooks for urging the hooks to rotate toward one another, and the stop limits rotation of the hooks to maintain the hooks relative to one another to define a yieldable guide that facilitates installation of the attachment device onto the support.

An attachment device for installation onto a support, includes a pair of oppositely facing and laterally offset hooks rotatably mounted so as to be oppositely facing and laterally offset from one another; a stop defined on one of the hooks and located so that the other one of the hooks is prevented from rotating past the stop by contact with the stop; and a biasing member operatively associated with the pair of hooks for urging the hooks to rotate toward one another, and the stop limits rotation of the hooks to maintain the hooks relative to one another to define a yieldable guide that facilitates installation of the attachment device onto the support.

A clipping apparatus. The clipping apparatus connects along a Z-axis but can be activated for release on either an X- or Y-axis. The clipping apparatus includes a first member with a first cavity and a first handle and a second member with a second cavity and a second handle. The first member and second member are mated to a spring connection mechanism and a base plate to form an opening. When the first handle and the second handle are pushed inwards toward one another, a male fitting is accepted into the opening and, upon release of the handles, the male fitting becomes locked into the opening.

A clipping apparatus. The clipping apparatus connects along a Z-axis but can be activated for release on either an X- or Y-axis. The clipping apparatus includes a first member with a first cavity and a first handle and a second member with a second cavity and a second handle. The first member and second member are mated to a spring connection mechanism and a base plate to form an opening. When the first handle and the second handle are pushed inwards toward one another, a male fitting is accepted into the opening and, upon release of the handles, the male fitting becomes locked into the opening.

A truss pick is provided for hanging tubular space frame truss. The truss picks of the present invention allow multiple methods of suspending truss from permanent structural objects.

A push button connector includes a first panel, a first trigger, a second trigger, and a slider. The first panel has a first pivot and a second pivot parallel to it. The first trigger includes a first connecting portion and a first buckle ring connected to each other. The first connecting portion is connected to the first pivot and can rotate around it. The first buckle ring is generally ring-shaped with a first opening. The second trigger includes a second connecting portion and a second buckle ring connected to each other. The second connecting portion is connected to the second pivot and can rotate around it. The slider is connected to the first panel. Both triggers have open and closed positions, with the buckle ring closing the opening in the closed position. The slider drives both triggers between these positions. This push button connector ensures easy operation and high safety.

A slide for securing a flat strap includes a body section, the body section sized to receive the flat strap. The slide further includes a ridge, the ridge on the body section. The slide further includes a first and second overhang on either side of the ridge and opposing the ridge such that the first and second overhang cooperate with the ridge to impart friction to the flat strap and prevent removal.