Patent ID: 9267537
Filing Date: 2016-02-23
CPC Classification: F16C,F21V,Y10T

Claim Text:
1. An adjustable joint for a luminaire, the joint comprising: a first joint portion comprising a cylindrical joint housing comprising opposing cylindrical plates and a landing disposed therebetween partially extending along a circumference of said plates, a pair of axially-aligned apertures extending through said plates, a first plurality of interengaging teeth positioned around an inner circumference of said landing, and a mounting structure extending from said joint housing; a second joint portion comprising a cylindrical joint member having an aperture axially extending therethrough, a second plurality of interengaging teeth positioned around an outer circumference of said joint member, and a receiver extending from said joint member, said joint member housed within said joint housing such that said apertures are axially aligned; and an axial screw extending through the aligned apertures in said first and second joint portions and defining a pivot axis; wherein one of said aperture in said second joint portion and said pair of apertures in said first joint portion is elongate in a radial direction, and wherein the sizing between the outer circumference of said joint member and the inner circumference of said landing provides a co-axial gap extending between at least a portion of the interengaging teeth on each of said first and second joint portions when the interengaging teeth are released thereby enabling radial movement between said first and second joint portions about said axial screw to release engagement of the of interengaging teeth and enabling engagement of the interengaging teeth by a force of gravity.