Rotary cabinet assembly

Claim 1

A rotary shelf and closure panel assembly for use in a corner structure having top and bottom panels and means defining two vertical faces of said structure extending between said upper and lower panels and at right angles to one another, each of said faces having an opening extending from the line of inteRsection of said faces and said means including upper and lower frontal components extending, respectively, across the upper and lower edges of said openings and projecting, respectively, below said top panel and above said bottom panel, comprising: a pair of closure panels secured to each other along one edge and extending at right angles to one another, said panels substantially filling said openings; a journal bracket secured to said closure panels adjacent the upper edges thereof and projecting therefrom along the bisector of the angle formed by said closure panels; a first pin slidably carried by said journal bracket and projecting upwardly therefrom; spring means biasing said first pin upwardly; an upper bearing bracket having a base portion adapted for flush engagement with the underside of said top panel, one edge of said base portion being provided with a V-notch for engagement with said upper frontal components whereby said upper bearing bracket is precisely located relative to said openings, said upper bearing bracket also having a downwardly projecting truncated concial portion the lower end of which has a hole for receiving the upper end of said first pin and providing a bearing therefor; a shelf assembly secured to said closure panels adjacent the lower edges thereof, said shelf assembly including upper and lower plates secured to one another at the edges thereof and spaced from one another at their center portions, the center portion of the lower one of said plates having an opening therein in vertical alignment with the axis of said fisrt pin, said lower plate having a pair of upturned flanges bearing against said closure panels, said upper plate having a pair of upturned flanges overlying said flanges of said lower plate, said shelf assembly including fastener means securing said flanges to one another and to said closure panels; a lower bearing bracket having a base portion adapted for flush engagement with the upper surface of said lower panel of said cabinet structure, one edge of said base portion being provided with a V-notch for engagement with said lower frontal components whereby said lower bearing bracket is precisely located relative to said opening, said lower bearing bracket also including a bearing block projecting upwardly from said base portion and having a vertically extending hole aligned with the vertical axis of said first pin when said bearing brackets are in their mounted positions and a camming surface on the upper end thereof; a second pin having a lower portion of a first diameter adapted for sliding and rotating engagement with said hole in said bearing block, an intermediate portion of enlarged diameter, the lower surface of which includes a camming portion cooperating with camming surface of said bearing block and an upper surface engaging the underside of the center portion of said lower plate of said shelf assembly, and an upper portion of lesser diameter than that of said intermediate portion, said upper portion extending through said hole in said lower plate of said shelf assembly and engaging the underside of said upper plate of said shelf assembly; and means to secure said second pin in non-rotating relation to said shelf assembly.