Snap nut concrete anchor assembly

Abstract

The present disclosure describes an anchor device for receiving and securing a shaft thereto. The device includes an outer housing within which a jaw assembly is secured. The outer housing of the device may in turn be secured to or within a support structure such as a building component. Jaw components of the jaw assembly may be threaded. Furthermore, the jaw assembly has at least two configurations. In a first configuration, at least one jaw component is positioned away from a central shaft axis against the biasing force of a biasing member. A removable or reconfigurable holding member or stop member selectively secures the at least one jaw component in this position. A second configuration is the result of the holding member being reconfigured by the inserted shaft. The shaft triggers movement of the at least one jaw component toward the central shaft axis and into contact with the shaft.

1 . A support member of an anchor assembly, the support member for receiving and securing a threaded shaft thereto, the anchor assembly further including a base member that is connectable with the support member, the support member comprising: an outer housing, the outer housing being defined by a central longitudinal axis, the outer housing including an outer wall, the outer housing also including an insertion opening at a first end thereof for receiving the threaded shaft, the outer housing including an upper portion that is separable from a lower portion, the outer wall defining an inner space, a jaw assembly disposed in the inner space, the inner space further includes a tapered surface with a lessening inner surface diameter toward the insertion opening, the jaw assembly including at least two threaded jaws the threads of which selectively engage threads of the shaft, the jaw assembly further including a bias member for biasing the at least two thread jaws toward the longitudinal axis. 
     
     
         2 . The support member of  claim 1 , wherein the upper portion is connectable to the lower portion via a threaded connection. 
     
     
         3 . The support member of  claim 1 , wherein the biasing member is a coil spring or leaf spring. 
     
     
         4 . The support member of  claim 1 , wherein the tapered surface is disposed on the lower portion. 
     
     
         5 . The support member of  claim 1 , wherein the biasing member urges the at least two threaded jaws toward the tapered member surface. 
     
     
         6 . The support member of  claim 3 , wherein the biasing member is disposed in the inner space to bias the at least two threaded jaws against the jaw assembly. 
     
     
         7 . The support member of  claim 1 , wherein one of the upper and lower portions including a male thread and the other of the upper and lower portions including a female thread, the male and female threads connectable complementarily together to form the outer housing. 
     
     
         8 . The support member of  claim 7 , wherein the lower portion includes a tapered seat for engagement with a complementarily tapered seat of the jaw assembly. 
     
     
         9 . A support member of an anchor assembly, the support member for receiving and securing a threaded shaft thereto, the anchor assembly further including a base member that is connectable with the support member, the support member comprising: an outer housing, the outer housing being defined by a central longitudinal axis, the outer housing including an outer wall, the outer housing further including an upper portion and a lower portion, the outer housing also including an insertion opening at a first end thereof for receiving the threaded shaft, the outer wall defining an inner space, a jaw assembly disposed in the inner space, the inner space further includes a tapered surface with a lessening inner surface diameter toward the insertion opening, the jaw assembly including at least two threaded jaws the threads of which selectively engage threads of the shaft, the jaw assembly further including a bias member for biasing the at least two thread jaws toward the longitudinal axis, wherein one of the upper and lower portions including a male thread and the other of the upper and lower portions including a female thread.