| CPC F21V 21/30 (2013.01) [F16C 11/103 (2013.01); F16M 11/10 (2013.01); F16M 13/022 (2013.01); F21S 8/085 (2013.01); F21V 21/116 (2013.01); F16C 2362/00 (2013.01); F21W 2131/103 (2013.01)] | 20 Claims |

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1. A tiltable joint for a luminaire, the joint comprising:
a first joint portion comprising a joint member provided with an outer cylindrical surface section and a pair of axially-aligned opposing bearings, said outer cylindrical surface section being provided with a first plurality of interengaging surfaces;
a second joint portion comprising a joint housing provided with an inner cylindrical surface provided with a second plurality of interengaging surfaces configured to interengage the first plurality of interengaging surfaces,
wherein the joint member of the first joint portion is configured for being housed within the joint housing of the second joint portion;
first and second shaft portions extending in alignment with the pair of axially-aligned opposing bearings, such that a pivot axis, PA, is defined; and
a coupling means configured for:
coupling the first and second shaft portions to the second joint portion;
enabling the engagement of at least a portion of the first plurality of interengaging surfaces with at least a portion of the second plurality of interengaging surfaces; and
enabling the release of said engagement such that a rotation movement of the joint housing relative to the joint member is enabled with respect to the pivot axis defined by the first and second shaft portions,
wherein the coupling means comprises a threaded portion and a nut,
wherein a first threaded portion of the coupling means and the first shaft portion are comprised by a first L-shaped element, and
wherein a second threaded portion of the coupling means and the second shaft portion are comprised by a second L-shaped element.
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