Importance

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Abstract

An insert and set screw for locking together the tongue and groove elements of adjacently situated sections of a portable floor in a manner which prevents upward movement of both the set screw and the insert beyond the top surface of the floor. The insert has a flared bottom end that is located in a floor section, above a groove in the groove element, and the set screw is threadably received within the insert. The set screw is tightened downwardly to contact and then compress upon a tongue element of an adjacently situated floor section that has been inserted within the groove element, thereby locking the tongue and groove elements together. The flared bottom end of the insert prevents it from moving upwardly into the plane of the top surface. Stop means inside the insert limit upward movement of the set screw. Both the insert and the set screw are physically restricted from protruding above the top floor surface.

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First Claim