QUICK-THREADED ROD LOCKING DEVICE AND METHOD

摘要

A threaded rod hanger has quick lock plunger mechanism that includes plunger pieces within a tapered hole in a housing. The plunger pieces have tapered outer surfaces. A spring within the housing presses the plunger pieces toward the narrow end of the bore, with the spring located between the plunger pieces and a back plate that closes off part of a wide end of the tapered bore. The plunger pieces have internally threaded surfaces that engage threads on a threaded rod that is inserted into the bore, between the plunger pieces. Once the threaded rod has been inserted between the plunger pieces and released, the plunger pieces are pushed toward the narrow bore end. This causes the plunger pieces to press inward, automatically causing the internal plunger half threads to engage the external threads on the threaded rod.

主权项

1. A threaded rod securement comprising:
a housing having a hole with a tapered inner surface, wherein the tapered inner surface has a wide end and a narrow end; and a threaded rod locking mechanism, wherein the threaded rod locking mechanism includes:
plunger pieces movable within the tapered inner surface, wherein the plunger pieces have sloped outer surfaces that engage the tapered inner surface, and plunger piece inner surfaces for engaging threads of a threaded rod to be placed into the through hole; anda spring within the tapered inner surface providing a spring force biasing the plunger pieces toward the narrow end of the tapered inner surface; anda screw that can be selectively engaged to lock the plunger pieces to prevent uplift of the plunger pieces within the tapered inner surface, or to release to allow the plunger pieces to lift; wherein contact between the outer surfaces of the plunger pieces and the narrow end of the tapered inner surface drives the plunger pieces toward one another and toward a center of the tapered inner surface.