Rotary shelf assembly mechanism having a post height adjustment device and a novel shelf construction and self retaining element for securing the shelves to the post

Abstract

A rotary shelf assembly mechanism has shelves mounted on a vertical post arrangement formed by a first lower post and a second upper post. The mechanism is connected to a cabinet by upper and lower mounting brackets interacting with the top and bottom of the cabinet to support the posts and shelves carried thereby. The mechanism is mounted in the corner of the cabinet. To fit the mechanism within the cabinet, a height adjustment device is formed by positioning the second upper post in the upper end of the first lower post for slidable movement therebetween. When securement of the two joined posts and mounted shelves is desired, the slidably movable second upper post is extended upwardly until it engages the upper mounting bracket mounted on the cabinet. An elongated recess in the second upper post aligns with an opening in the first lower post, and a threaded member extends into a casting positioned within the upper post. The threaded member is tightened to engage the casting and secure the two posts in a shelf-retaining and rotational mode. The height adjustment device enables quick and efficient installation of the mechanism within the cabinet interior. The mechanism also includes a one piece shelf construction having a post-securing section and a shelf-retaining pin.

1. A rotary shelf assembly  mechanism comprising:
 a telescopically  vertically adjustable vertical  post arrangement ;  
 first and second mounting brackets spaced apart from and opposing each other supporting the post arrangement ;  
 at least one single piece shelf connected to the post arrangement , the post arrangement  having pin-receiving apertures proximate the at least one connected shelf, each of the at least one shelf having a post-securing section including a hub with  a post-encircling sleeve disposed within and spaced from the hub; the post-encircling sleeve  including a  an operably connected pin-receiving indent operatively connected with the post-encircling sleeve ; and  
 a pin extending through the post arrangement  pin-receiving apertures,  and being cooperatively received and retained  by the pin-receiving indent of the at least one shelf and through the post-encircling sleeve  to vertically secure the at least one shelf to the post arrangement  so that the post arrangement  and the shelf rotates  as one unit, wherein the post-encircling sleeve of the at least one shelf has a post-receiving opening, the pin-receiving indent is a rectangularly shaped recess having first and second closed ends facing said post-receiving opening and at least partial first and second sides communicating with the post-receiving opening, the pin is an elongated element having first and second ends and a cylindrically shaped pin body portion, and the pin-receiving indent engages the first and second pin ends and the cylindrically shaped pin body portion when the pin operably secures the at least one shelf to the post.  
 
     
     
       2. The mechanism as claimed in  claim 1  wherein the pin is an elongated element having first and second ends and the pin-receiving indent engages at least one of the pin ends when the pin operably secures the at least one shelf to the post arrangement. 
     
     
       3. The mechanism as claimed in  claim 1  wherein the hub of the at least one shelf has a post-receiving opening, the pin-receiving indent is a rectangularly shaped recess communicating with the post-receiving opening, the post arrangement further including pin-receiving apertures at each of a plurality of shelf positions. 
     
     
       4. The mechanism as claimed in  claim 3  wherein the pin is an elongated element having first and second ends and the pin-receiving indent engages at least one of the pin ends when the pin operably secures the at least one shelf to the post arrangement.