Security rack

Claim 1

In a rack for securely holding articles, which articles have a top surface, a bottom surface, dimensions of length, width and height, and engagement means on one of said surfaces, said rack including a base plate and a top plate, a pair of anchor blocks attached to each of said plates, said base plate and top plate facing each other, and parallel to and spaced apart from one another, with the anchor blocks of each opposing the anchor blocks of the other, a pair of posts extending between each pair of opposed anchor blocks, said anchor blocks having post-receiving openings defined by respective walls, the improvements comprising: a plurality of rivets, each rivet having a shank and a head, said plates each having a plurality of holes to pass the rivet shanks and restrain the rivet heads, and each anchor block having a plurality of holes aligned with respective holes in the plates to pass the rivet shanks, and a peripheral surface around the holes in the anchor blocks against which bears an upset head that is formed from the shank material, whereby to join the anchor blocks to the plates; a recess in each anchor block bounded by a non-circular inner wall aligned with and continuing each respective post-receiving opening in the anchor blocks mounted to a first one of said plates, each said recess having a dimension of axial length in alignment with its post receiving opening and extending radially outward beyond it, and a shoulder between the post-receiving opening and the recess; an internally threaded nut in each said recess, each said nut having a non-circular outer wall, the walls of the nuts and recesses making a rotation-resisting engagement with one another, and permitting limited axial movement of the nut in the recess, a thread on one end of each post threaded into a respective nut, whereby to attach the post to the anchor block, the post fitting snugly into the respective post-receiving opening; the anchor blocks attached to the other of said plates having a plurality of post-receiving openings, and a plurality of aligned lock pin receiving ports extending laterally relative to said post-receiving openings, said posts at this anchor block fitting snugly into the respective post-receiving openings, and having a cross-hole aligned with said lock pin receiving ports; a lock pin passed through said cross-holes and lock pin receiving ports to hold the posts to the respective anchor block; and lock means releasably restraining the lock pin in the respective anchor block.