Shelf structure and method of making same
OwnerArthur H. Gravesinventor
Life of this patent
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Abstract
The invention discloses a shelf structure and the method of making it. A specific embodiment is a linen cart having four corner posts, a plurality of horizontal, shelf retaining members and shelves held within the confines of the horizontal members. The horizontal members are welded to the corner posts and the device is devoid of any normal form of fastening means.
Claims3
A shelf structure including a frame and a plurality of shelves therein, said frame comprising four vertical tubular corner posts of rectangular cross section with a plurality of horizontally disposed, vertically spaced rail members defining the perimeter of said structure and being welded to said posts to interconnect them together to form a rigid frame;
- said frame being elongated and rectangular in form having at least an open front portion and end portions;
- said rail members each being of inverted U-shape in cross section with a cap portion and integrally formed outer and inner depending flanges, portions of said cap being cut away to allow positioning therein of the corner posts and whereby the outer flange of the rail is wrapped around the exterior of said post;
- tubular end closure members, parallel with the corner posts, in the ends of the structure and extending upwardly through the cap of each rail and being secured to at least one thereof, the inner flange of each rail having inwardly extending lower and upper ribs;
- and a shelf positioned within the confines of each rail member with edges of the shelf being held against vertical movement relative to each rail member by said upper and lower ribs.
A shelf structure including a frame and a plurality of shelves therein, said frame comprising four vertical tubular corner posts of rectangular cross section with at least two horizontally disposed, vertically spaced rail members defining the perimeter of said structure and being welded to said posts to interconnect them together to form a rigid frame;
- said frame being elongated and rectangular in form having at least an open front portion and end portions;
- said rail members each being of inverted U-shape in cross section with a cap portion and integrally formed outer and inner depending flanges, portions of said cap being cut away to allow positioning therein of the corner posts and whereby the outer flange of the rail is wrapped around the exterior of said post;
- tubular closure members, parallel with the corner posts, in the ends of the structure and extending upwardly through the cap of each rail and being secured to at least one thereof;
- the inner flange of each rail having inwardly extending lower and upper ribs;
- and a shelf positioned within the confines of the upper rail member with edges of the shelf being held against vertical movement relative to the upper rail member by said upper and lower ribs;
- the lower rail member having a first portion extending around three sides of said structure and a second portion pivotally mounted along the other side between two corner posts, said pivotal mounting comprising angular slots in the terminal ends of said second rail portion, and pivot pins secure in said posts and extending into said slots;
- and a shelf secured to said second portion whereby movement of the second portion by means of said slots on said pins effects pivotal movement of said shelf downwardly to close off the fourth side of said structure.
Dependencies are inferred from the claim text.