U.S. patent number 3,660,651 [Application Number 05/059,152] was granted by the patent office on 1972-05-02 for adjustable light fixture.
This patent grant is currently assigned to Indy Lighting, Inc.. Invention is credited to Earl F. Miles, Jr..
United States Patent |
3,660,651 |
Miles, Jr. |
May 2, 1972 |
ADJUSTABLE LIGHT FIXTURE
Abstract
An adjustable light fixture recessible in a ceiling for
directing light at various angles toward an object. A shade having
an electric light bulb is suspended within a housing by a pair of
multi-membered arms. Each arm is adjustable for moving the shade
vertically. The shade is rotatably mounted to a handle for allowing
the shade and bulb to pivot 180.degree. about the horizontal
mounting axis. The handle is rotatably mounted to a U-shaped
bracket fastened to the pair of arms allowing the shade and bulb to
rotate about a vertical axis. Stops are provided to prevent
tangling of the electric wires.
Inventors: |
Miles, Jr.; Earl F.
(Indianapolis, IN) |
Assignee: |
Indy Lighting, Inc.
(Indianapolis, IN)
|
Family
ID: |
22021172 |
Appl.
No.: |
05/059,152 |
Filed: |
July 29, 1970 |
Current U.S.
Class: |
362/366;
362/364 |
Current CPC
Class: |
F21S
8/028 (20130101); F21S 8/026 (20130101); F21V
21/24 (20130101); F21V 27/00 (20130101); F21V
17/166 (20130101); F21V 21/30 (20130101) |
Current International
Class: |
F21V
17/00 (20060101); F21S 8/02 (20060101); F21V
17/16 (20060101); F21V 21/14 (20060101); F21V
21/24 (20060101); F21s 001/04 () |
Field of
Search: |
;240/73,61.11,78HA |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Myracle; Jerry W.
Claims
The invention claimed is:
1. A display lighting fixture assembly for recessed mounting in a
wall or ceiling, said assembly comprising a tubular housing having
a mounting flange at one of its ends adapted to mount said housing
end substantially flush with a wall or ceiling surface with the
body of the housing extending inwardly from said surface, a
beam-directing reflector disposed in telescoping relation within
said housing with the reflector spaced from the inner surface of
the housing wall, a yoke supporting said reflector for angular
adjustment within said housing about an axis normal to the
longitudinal axis of said tubular housing, and extensible mounting
means for the reflector permitting its withdrawal from within the
housing, said mounting means comprising two sets of extensible
toggle levers extending within said housing in opposed spaced
relation and having the corresponding lever ends pivotally
supported at generally diametrically opposite points within said
housing, a bracket member extending between and pivotally joined to
the corresponding spaced lever ends remote from said pivotally
supported lever ends, a single fastening member centrally joining
said reflector supporting yoke and said bracket thereby permitting
said reflector to swivel with relation to said bracket and toggle
arms and to be angularly tilted with relation to said supporting
yoke both when said toggle arms are retracted so that reflector is
within said housing and when said toggle arms are extended so that
said reflector extends outside said housing.
2. A display lighting fixture assembly as claimed in claim 1 having
a trim member masking the end of said housing adjacent said
reflector and a supporting connection of adjustable length
extending between said housing and trim member to permit selective
spacing of the trim member from said housing end.
3. A display lighting fixture assembly as claimed in claim 1 in
which said yoke carries a stop cooperating with said bracket to
limit swivel motion of said reflector to 360.degree. .
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention is an adjustable light fixture.
2. Description of the Prior Art
The display industry, particularly display personnel for department
stores, have been seeking a single light fixture which is
adjustable both to give general illumination and to direct light at
various angles at an object.
Thus, the single fixture could be used to light a general overall
area or could be used as an accent light. In the past when
directing light toward an object to emphasize various features it
has often been necessary to move the object with respect to the
light since the fixture was not quickly and easily adjustable. In
addition, many times two different light fixtures were required to
provide general illumination and accent light. At least three
United States patents have been granted for light fixtures. They
are: U.S. Pat. Nos. 2,855,503 to Gerstel, 3,263,072 to Kruger and
3,381,123 to Docimo.
From the above background it can be seen that there is a need for a
light fixture which may be quickly and easily adjusted to light a
general area and to direct light at an object at various angles.
The fixture should be adjustable in the vertical direction. In
addition, the light should be rotatable about a vertical axis and
pivotable about a horizontal axis. The light should be adjustable
both when it is recessed in a ceiling and when it is extended from
the ceiling.
SUMMARY OF THE INVENTION
This invention involves a light fixture which may be adjusted to
direct light at various angles. The fixture has a shade with an
electric light bulb mounted therein and movable in the vertical
direction by a pair of arms suspended within a housing. The shade
and bulb are rotatably mounted to a handle allowing the shade and
bulb to pivot around a horizontal axis. The handle is rotatably
mounted to the pair of arms by a U-shaped bracket allowing the
shade and bulbs to rotate about the vertical axis. Stop flanges are
attached to the arms limiting the movement thereby preventing
tangling of the electric wires.
One object of the present invention is to provide a light fixture
which may be quickly and easily adjusted for directing light at
various angles and for providing general illumination. The light
fixture is adjustable both when it is recessed in a ceiling and
when it is extended from the ceiling.
Related objects and advantages will be apparent from the following
description.
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 is a fragmentary perspective view of an adjustable light
fixture incorporating the present invention.
FIG. 2 is a fragmentary view of the light shade and associated
structure of the adjustable light fixture shown in FIG. 1.
FIG. 3 is an enlarged fragmentary view taken along the line 3--3 in
the direction of the arrows of an arm connection of FIG. 1.
FIG. 4 is a fragmentary view of the adjustable light fixture of
FIG. 1 shown mounted to a plaster ceiling.
FIG. 5 is a fragmentary view of the adjustable light fixture of
FIG. 1 with the shade pivoted to create a "half-moon" light.
DESCRIPTION OF THE PREFERRED EMBODIMENT
For the purposes of promoting and understanding of the principles
of the invention, reference will now be made to the embodiment
illustrated in the drawings and specific language will be used to
describe the same. It will nevertheless be understood that no
limitation of the scope of the invention is thereby intended, such
alterations and further modifications in the illustrated device,
and such further applications of the principles of the invention as
illustrated therein being contemplated as would normally occur to
one skilled in the art to which the invention relates.
Referring more particularly to FIG. 1, there is shown a fragmentary
perspective view of an adjustable light fixture 20 having an
electric light bulb mounted within beam-directing reflector or
shade 70 which is suspended by arms within housing 21 mounted to a
ceiling. Shade 70 may be swiveled and moved vertically. In
addition, shade 70 may be pivoted about its horizontal mounting
axis allowing for different lighting techniques.
Housing 21 has a side wall 22 enclosing the arms and shade and is
covered on the top by wall 23. Threaded rods 24 have flat bottom
ends fastened to side wall 22 by welds 48. The top threaded ends of
rods 24 pass through the top wall 23 with wing nuts 25 threaded
thereon securing the top wall to the side wall. The ends of the
toggle arms 38 and 39 supporting the light shade are rotatably
mounted to right angle mounting brackets 57 and 58 which are each
fixedly fastened to side wall 22 by bolt 27, lock washer 26 and hex
nut 28. Arm 39 has its top end rotatably mounted to flange 57 by
nut 54, washer 55 and bolt 56. Likewise, arm 38 has its top end
rotatably mounted to flange 58 by a nut, washer and bolt. Rotatably
mounted to the lower end of arm 39 is the top end of arm 41.
Likewise, rotatably mounted to the lower end of arm 38 is the top
end of arm 40. FIG. 3 is a fragmentary view taken along the line
3--3 and viewed in the direction of the arrows in FIG. 1. FIG. 3
shows the top end of arm 41 mounted to the lower end of arm 39 by
bolt 56 passing through the two arms and secured by nut 54. A flat
washer 55 is located between the two arms allowing the two arms to
rotate about the axis of the bolt. The mounting arrangement shown
in FIG. 3 is identical with the mounting arrangement used to mount
lower end of arm 38 to the top end of arm 40. Likewise, the same
mounting arrangement is used to mount the top end of arm 38 to
flange 58 and the top end of arm 39 to flange 57.
Rotatably mounted to the bottom of toggle arms 40 and 41 (FIG. 2)
is U-shaped bracket 50 which in turn is mounted to a yoke or shade
handle 60 for supporting shade 70. The lower end of arm 41 is
rotatably mounted to one of the top ends of U-shaped bracket 50 by
bolt 43 and nut 44. Likewise, the lower end of arm 40 is rotatably
mounted to the other top end of U-shaped bracket 50 by bolt 42 and
nut 45. Shade handle 60 has a generally inverted U-shaped
configuration with its top middle portion rotatably mounted by bolt
75, flat washer 76 and hex nut 77 to the horizontal portion of
U-shaped bracket 50. Rotatably mounted to the lower ends of shade
handle 60 is the light shade 70. Bolt 71 freely passes through arm
78 of shade handle 60 and through the side wall of shade 70 and is
secured thereon by hex nut 74. A lock washer 72 is located between
arm 78 and shade 70 and lock washer 73 is located between hex nut
74 and shade 70 thereby allowing shade 70 to rotate about the axis
of bolts 71. Arm 79 of shade handle 60 is likewise rotatably
mounted by a bolt, lock washers, and nut to the opposite side of
shade 70.
Shade 70 is cup-shaped having its open end at the bottom allowing
the light from bulb 80 to shine out. As shown in FIG. 2, bulb 80 is
threadedly received into socket 81 which is fastened to the top
wall of shade 70. Socket 81 is conventional in nature and is
fastened to the top wall of shade 70 by screws 82 (FIG. 1). Wires
83 (FIG. 2) exit socket 81 covered by insulation 84 passing through
the side wall of shade 70. A snap bushing 85 is secured to the side
wall of shade 70 allowing the insulated wire to exit therethrough.
Wires 83 then connect the socket with the source of electrical
energy passing through connector 29 (FIG. 1). Connector 29 is
secured to wall 23 by nut 31 threaded onto the bottom end of
connector 29. Screw 32 is provided on connector 29 having a blunt
end for securing the wires passing through the hollow center of
connector 29.
It can be appreciated that wires 83 may become tangled between the
various arms suspending shade 70 as the shade is moved vertically,
swiveled or pivoted. Therefore, the present adjustable light
fixture 20 incorporates several features for precluding injury to
wires 83. For example, a standard cable clip 86 (FIG. 1) secures
the insulated wires to shade handle 60. Similar clips may be
employed on other arms securing the cable thereto. As shade 70 is
swiveled or rotated about the vertical axis, the insulated wires
will become twisted around the arms if the rotation of the shade is
not limited. Therefore, means have been provided on the arms to
limit the amount of rotation. Referring to FIG. 2, Flange 64
extending upward is welded to the horizontal portion of shade
handle 60 in such manner so as to abut against a horizontally
extending flange 51 welded to one of the vertical arms of U-shaped
handle 50. Thus, shade handle 60 may be rotated one complete
revolution about the longitudinal axis of bolt 75. Further
revolution in the same direction is prevented when flange 64 abuts
against flange 51.
Referring to FIG. 1, a similar flange 46 is secured to the top end
of arm 40 for abutting aginst the lower portion of arm 38 thereby
limiting the downward movement of the apparatus. Likewise, flange
47 is secured to the top portion of arm 41 for abutting aginst the
lower portion of arm 39. Cut outs 52 and 53 are provided
respectively on arms 38 and 39 to allow for clearance when the
shade is in the most upward position of the fasteners used to
secure arms 38 and 40 together and arms 39 and 41 together. Arms 38
and 39 have equal lengths less than the internal diameter of
housing 21. Arms 41 and 40 also have equal lengths but are shorter
than arms 38 and 39.
Adjustable light fixture 20 may be mounted to a suspended ceiling
or to a plaster ceiling. FIG. 1 illustrates the mounting of the
adjustable light fixture to suspended ceiling. Fastened to the
outside of housing 21 is a standard mounting frame 33. Mounting
frame 33 is secured to the lower portion of side wall 22 by screw
35 and nut 36. Mounting frame 33 has a horizontal wall 95 extending
around wall 22 and is integrally attached to a vertical wall 96
also extending around housing 21. Mounted within housing 21 is trim
member 67 which extends out the bottom opening of housing 21
abuttingly engaging the lower portion of frame 33. Trim member has
a hole in its center for allowing shade 70 to be pulled through and
is mounted to the inside of wall 22 by butterfly spring mountings
68. Mounting 68 has bracket 97 welded to the outside surface of
tram member 67 extending upward with a rod 98 fixedly fastened to
its top. Spring 99 is wrapped around rod 98 is such a manner that
the two ends of the spring extend upward. A right angle bracket 65
is welded to he inside surface of wall 22 having two grooves 100
for each receiving one end of spring 99. The ends of spring 99 are
bent at a right angle away from each other enabling trim member 67
to be pulled downward away from housing 21 without spring 99
becoming disengaged from bracket 65. Thus, the distance between
horizontal wall 95 of mounting frame 33 to horizontal wall 101 of
trim member 67 may be adjusted in accordance with the thickness of
ceiling tile 87. The tiles in a suspended ceiling are generally
supported by inverted T-shaped bars 88 having horizontal flanges
supporting the lower surface of the ceiling tile. Mounted
perpendicular to the top of bars 88 are C-shaped bars 89. A right
angle bracket 90 is used to mount horizontal wall 95 to the
vertical wall of bar 89. Screw 93 and nut 94 are used to securely
fasten horizontal wall 95 to right angle bracket 90 and screw 91
and nut 92 are used to secure bracket 90 to bar 89. Thus,
adjustable light fixture 20 may be readily mounted to a suspended
ceiling. Likewise, the adjustable light fixture may be mounted to
the traditional plaster ceiling by disengaging spring 99 from
brackets 65 and removing trim member 67 from the light fixture. The
light fixture is then inserted into a hole in the plaster ceiling
as shown in FIG. 4 and screws 102 and wing nuts 103 are used to
secure horizontal wall 95 of mounting frame 33 to plaster ceiling
104.
It will be evident from the above description that the adjustable
light fixture allows the shade and light bulb to be adjusted
vertically in the extreme upward and downward positions or in any
intermediate position. Thus, the light fixture may be adjusted in
the recesses position as generally shown in FIG. 5 or in the
extended position as generally shown in FIG. 1. Likewise, the light
fixture may be adjusted at any intermediate location. In one
embodiment of the light fixture, shade 70 was extendable one foot
from the fully recessed position and was adjustable along the
entire 1 foot distance. It will be further evident that the shade
and light bulb may be swiveled or rotated about the vertical axis
360.degree. and may be pivoted 180.degree. about a horizontal axis.
It is also possible to create a "half-moon" lighting effect 105 by
positioning shade 70 within housing 21 as shown in FIG. 5 and by
pivoting the shade in such a manner so that a portion of the light
emitted from bulb 80 is blocked by the structure of the fixture. It
will also be evident from the above description that the light bulb
and shade may be extended from the housing to provide general
illumination.
While the invention has been illustrated and described in detail in
the drawings and foregoing description, the same is to be
considered as illustrative and not restrictive in character, it
being understood that only the preferred embodiment has been shown
and described and that all changes and modifications that come
within the spirit of the invention and the scope of the claims are
also desired to be protected.
* * * * *