Patent ID: 6158360
Filing Date: 2000-12-12
Classification: A47B

Abstract:
A multi-level rotational shelf structure configured to be fastened to a wall surface, and comprising two suspension tubes with a plurality of shelf assemblies fitted between the two suspension tubes, each shelf assembly having a shelf and a lock end component with bushings which fit onto and clasp the shelf, and an upright tube fastened onto the lock end component between adjacent shelves, wherein:a) each shelf engages a recess in a fastening piece and is clamped by a bolt threaded into the fastening piece, at a bottom of the shelf, the fastening piece is connected to a support bar located at the bottom of the shelf, and extending from the support bar is a brace having an end securely fitted with a pivot joint of the lock end component; andb) the lock end component includes a pivot joint threaded rod, including a washer that clasps onto the bushing, one side of the bushing is fixed on the lock end component passes through the pivot joint and is secured in position by a nut screwed onto the end of the threaded rod, an end of the bushing is inserted into one of the suspension tubes and the upright tube, whereby in a middle section, a circular flange structure protrudes allowing ends of the bushings to be slipped into the pivot joint, and wherein the flange circumference equals that of the bushings, so as to form a smooth pivoting tubular structure.