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US 4,543,007 AGranted
Adjustable luminaire support knuckle
AssigneeHarvey Hubbell Incorporated
InventorHonesto D. Quiogue
Life of this patent
Estimating the term…
Abstract
A support knuckle for a luminaire has a first body attached to the luminaire housing and a second body which can be attached to a mounting location. The first body has a recess with peripheral teeth and a passage to the housing interior. The second body has teeth which are matable with those on the first body at various angular positions. The two bodies are held together by a threaded fastener passing through an elastomeric sleeve.
Claims13
An adjustable support knuckle for a luminaire comprising:
- a first body fixedly attached to the housing of said luminaire, said first body having
- a generally cylindrical first recess extending inwardly from one side thereof,
- a hole extending from the other side of said body through to said recess and coaxially therewith,
- an axially facing peripheral shoulder adjacent said one side and at least partially encircling said recess,
- a first plurality of uniformly spaced teeth protruding axially from said shoulder, the space between said teeth being greater than a tooth width, and
- means defining a passageway from said recess to the interior of said luminaire housing;
- a second body coupled to said first body, said second body comprising
- a generally cylindrical portion with a circular wall having an outer diameter substantially equal to that of said axially facing shoulder,
- a second plurality of uniformly spaced teeth axially protruding from said wall and being engageable between adjacent teeth of said first plurality of teeth,
- a second recess extending axially into said second body within said wall,
- a hole through said cylindrical portion coaxial with said recess and said wall,
- a tubular conduit extending generally radially from said generally cylindrical portion, and
- means on said tubular conduit for attachment to a mounting location;
- fastener means insertable through said holes in said first and second bodies for holding said bodies together with said teeth engaged in any of a plurality of relative angular positions, said first and second recesses forming a chamber through which electrical wires can extend from said housing and into said conduit;
- and
- an elastomeric sleeve extending between said bodies within said recesses and surrounding said fastener means to separate said fastener means from said wires.
13 more elements
An adjustable support knuckle comprising the combination of
- a first body having
- a flat face,
- a first cylindrical recess extending inwardly from said face and terminating at a flat, annular shoulder,
- a second generally cylindrical recess extending inwardly from said shoulder, said second recess being concentric with said first recess,
- a first plurality of uniformly spaced teeth protruding axially from said shoulder toward said flat face, the axial length of each of said teeth being less than the depth of said first recess, and
- means defining a first radial passageway extending out of said second recess for receiving a wire;
- a second body having
- an annular wall having an outer diameter dimensioned to be received in said first recess,
- a second plurality of uniformly spaced teeth axially protruding from said wall and being engageable between adjacent teeth of said first plurality of teeth,
- a third recess extending axially into said second body within said wall,
- means defining a second radial passageway extending out of said third recess for receiving a wire, and
- a flat, annular surface at least partially surrounding said wall;
- and
- means for holding said bodies together with said second and third recesses substantially coaxially facing each other to form a hollow chamber through which wires can pass from said first radial passageway to said second radial passageway.
11 more elements
Dependencies are inferred from the claim text.