U.S. patent number 3,735,329 [Application Number 05/220,340] was granted by the patent office on 1973-05-22 for distributor apparatus.
This patent grant is currently assigned to Moriyama Industrial Co., Ltd., Tokyo Shibaura Electric Co., Ltd.. Invention is credited to Tadao Funabashi, Kazuaki Murata.
United States Patent |
3,735,329 |
Funabashi , et al. |
May 22, 1973 |
DISTRIBUTOR APPARATUS
Abstract
A distributor apparatus adapted to mechanically and electrically
connect a plurality of distributor members thereto and allow the
latter to extend from the apparatus, comprising a base, cover
covering the base, and a clamp ring secured and fixed to the base,
characterized in that the base and cover are provided with
oppositely disposed first and second annular electrodes
electrically led to a power line, the base being at its periphery
wall formed with a plurality of openings spaced from each other and
provided with a plurality of compartments opposite to the
respective openings for suitably receiving a terminal fixture
whereby the terminal fixture is received in the compartment to
allow the distributor member to pass through the opening and to
extend the distributor member from the apparatus and the first and
second annular electrodes are in contact with the respective
contact terminals in the apparatus by covering the cover over the
base and screwing the clamp ring over the base.
Inventors: |
Funabashi; Tadao (Kawasaki,
JA), Murata; Kazuaki (Tokyo, JA) |
Assignee: |
Tokyo Shibaura Electric Co.,
Ltd. (Kanagawa, JA)
Moriyama Industrial Co., Ltd. (Tokyo, JA)
|
Family
ID: |
12818089 |
Appl.
No.: |
05/220,340 |
Filed: |
January 24, 1972 |
Foreign Application Priority Data
|
|
|
|
|
Jul 3, 1971 [JA] |
|
|
46/48969 |
|
Current U.S.
Class: |
439/323; D26/84;
362/408; 362/405; 362/411 |
Current CPC
Class: |
F21V
21/112 (20130101); F21V 21/108 (20130101); H02G
3/20 (20130101); F21V 17/007 (20130101); F21S
8/065 (20130101); F21S 6/002 (20130101); F21Y
2113/00 (20130101) |
Current International
Class: |
F21S
8/04 (20060101); H02G 3/20 (20060101); F21V
21/108 (20060101); F21S 8/06 (20060101); F21V
21/112 (20060101); H02G 3/18 (20060101); F21V
21/10 (20060101); H01r 017/00 () |
Field of
Search: |
;339/20,36,89R,89M,92,124,135,157,159-162,176P,197,198C,198J |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Champion; Marvin A.
Assistant Examiner: Staab; Lawrence J.
Claims
What is claimed is:
1. A distributor apparatus adapted to mechanically and electrically
connect a plurality of distributor members thereto and allow the
latter to extend from the apparatus, comprising an insulated base
having a bottom and comparatively thicker periphery wall extending
therefrom, a plurality of openings spacedly formed in said
periphery wall of said base, a plurality of compartments adapted to
receive the respective terminal fixtures of said distributor
members, a first annular electrode disposed in the interior of said
base bottom to allow a contact terminal mounted to the one end of
said distributor member to be in contact with said annular
electrode, a threaded bank upwardly extending from said periphery
wall of said base at the interior thereof, an insulated cover
adapted to cover said base at the upper end thereof, a second
annular electrode provided on said cover and connectable with
another contact terminal mounted to the one end of said distributor
member receivable in said compartment when said cover is mounted
over said base, and a clamp ring screwed into said threaded bank of
said base to secure said cover to said base.
2. A distributor apparatus in accordance with claim 1 wherein said
base is formed of insulated synthetic resin and includes a
plurality of thinner portions spacedly formed at the periphery wall
thereof whereby said opening is derived from a knock-out of said
thinner portion.
3. A distributor apparatus in accordance with claim 2 wherein said
thinner portion terminates in said base edge adjacent said clamp
ring, an outwardly projecting rib being formed on said base edge at
the periphery thereof to reinforce said thinner portion at said
base edge.
4. A distributor apparatus in accordance with claim 1 wherein said
cover includes a central opening adapted to allow a power line to
pass therethrough and a first pair of contacts received without
being exposed in an insulated column, said contacts being insulated
from each other and connectable with a pair of leads of said power
line at a plane opposite to said base, said base having a second
pair of contacts electrically coming in contact with said first
pair of contacts when said base is secured to said cover, one of
said contacts of said second pair being connected to said first
annular electrode, the other one of said second pair being
electrically led to said second annular electrode through a
different contact in said base and a further contact in said
cover.
5. A distributor apparatus in accordance with claim 4 wherein said
central opening of said cover is threaded in a manner such that the
central opening is gradually reduced in diameter to form a step
structure whereby various sizes of conduit tubes are selectively
coupled to said base by screwing said tube into said opening.
6. A distributor apparatus in accordance with claim 5 wherein said
central opening of said cover further includes a more reduced inner
diameter therein following said step structure.
7. A distributor apparatus in accordance with claim 4 wherein said
base includes a central opening adapted to allow a second power
line to pass therethrough, said power line being electrically
connected to said second pair of said contacts in said base and led
out of said base opening whereby a plurality of said distributor
apparatus may be electrically and mechanically connected by said
power line to one another.
8. A distributor apparatus in accordance with claim 7 wherein said
central opening of said base is internally threaded for serving to
couple a conduit tube thereto.
9. A distributor apparatus in accordance with claim 1 wherein said
clamp ring has a dimension to the extent that at least a clearance
is formed between said base and ring at their edges when said clamp
ring is completely screwed into said base whereby a lamp shade or
the like may be interposed therebetween.
10. A distributor apparatus in accordance with claim 9 wherein said
clearance formed between said base and ring at their edge is
adapted to normally mount a spacer ring therein.
Description
BACKGROUND OF THE INVENTION
This invention relates to a power distributor apparatus and more
particularly to an apparatus for distributing electric power to a
plurality of loads such as lamps or the like by provision of a
plurality of power distributor members extending from the
apparatus.
A power distributor apparatus of the class has been conventionally
employed in and well known as lighting fixtures such as chandelier
or the like that is adapted to diverge a plurality of distributor
members each consisting of a cord or pipe through which a cord
passes thereby distributing power to lamp loads connected to the
respective members. Typically, well known lighting fixtures such as
chandelier or the like are integrally formed of the power
distributor apparatus and distributor members and thus supplied
from a maker to consumers in the form of indecomposable unit. This
makes finished goods to be shipped bulky thereby requiring a
trouble in packing operation and providing a problem in maintenance
and conveyance of the goods. As a result, considerable cost would
be entailed. Some types of the products have been proposed to
enable consumers to assemble components into a unit for their use
in order to allow each of the components to be decomposable.
However, the difficulty is applied to assembly of the components
when made by consumers since such requires much skill and trouble.
For this reason, the products to be assembled by consumers would be
limited to a certain extent. In case of the lighting fixtures such
as chandeliers or the like, assembly thereof cannot be made if they
require a complicated electrical connection and a considerable
load.
SUMMARY OF THE INVENTION
The present invention provides a distributor apparatus which
enables every consumer to attach distributor members thereto
irrespective of skill but with a simple operation and which not
only eliminates electrification in attachment operation but also
ensures electrical and mechanical mounting condition even after
fixing the distributor members to the distributor apparatus.
According to the present invention, a distributor apparatus,
distributor members, and accessories are separately packed and
supplied to consumers for allowing them to assemble these
components into a unit such as chandelier to thus overcome the
aforementioned problems.
It is a primary object of the invention to provide a power
distributor apparatus for distributing electric power to a
plurality of loads such as lamps or the like by provision of a
plurality of power distributor members such as pipes or cords which
are held by the apparatus and extend therefrom.
A further object of the invention is to provide a power distributor
apparatus which comprises a base, cover, and a screw or clamp ring
of separately molded plastic insulating material, and wherein an
electrode section is provided within a chamber defined by the cover
and the screw ring threaded thereinto and an electric contact
disposed in the distributor members is in turn electrically
connected to the electrode section.
Another object of the invention is to provide a power distributor
apparatus wherein a plurality of openings are formed in a
peripheral wall of the base to receive the respective distributor
members at one end thereof and the screw ring is screwed into the
base to thus ensure a rigid attachment of the distributor members
to the apparatus in a mechanical manner.
Still another object of the invention is to provide a power
distributor apparatus wherein an electrode section which is
provided within a chamber defined by the cover and the ring
comprises a first annular electrode mounted to the base, and a
second annular electrode mounted to the cover and an electric
current is prevented from draining to those electrodes prior to the
assembly of the base with the cover thereby avoiding accidental
electrification in operation.
Yet another object of the invention is to provide a power
distributor apparatus wherein a central bore is formed in the cover
to allow a power line such as cord or conduct tube to pass through
the bore while a pair of bayonet contacts are disposed internally
of the cover for connection with a power line and adapted to be
held within an insulated receptacle without being exposed, and
wherein a pair of receptacle contacts are arranged internally of
the base so as to be in contact with the pair of the bayonet
contacts when the cover is mounted to the base, one of the bayonet
contacts being electrically led to a first annular electrode in the
base and the other being adapted to be electrically led to a second
annular electrode in the cover when the cover is mounted to the
base whereby the first and second annular electrodes are capable of
receiving an electric current.
Additional object of the invention is to provide a power
distributor apparatus wherein a plurality of thinner portions are
formed in a periphery of the base so as to be readily knocked out
thereby allowing the thinner portions to be openings to receive the
distributor members therethrough.
A still further object of the invention is to provide a power
distributor apparatus wherein the base is provided with a rib
integrally formed thereof and radially extending the upper edge of
the base to provide rigidity for the edge of the thinner portion
thereby preventing the latter from cracking if should undesirable
external force be applied thereto.
A yet further object of the invention is to provide a power
distributor apparatus which is capable of forming a clearance
between the base and screw ring when assembled so that a lamp shade
or the like may be mounted to such a clearance.
Another object of the invention is to provide a power distributor
apparatus wherein the cover is formed with an upwardly and
centrally extending hollow neck portion which is at its inner side
threaded to allow each of threads to reduce its diameter in the
vertical direction and which is also adapted to include stepped
portions to conform with a size of a line power to be received in
the hollow neck portion.
A more particular object of the invention is to provide a power
distributor apparatus wherein a threaded opening is formed in the
base at the center thereof by which a power line is led for
connection with a plurality of distributor members.
According to the present invention, a plurality of distributor may
be allowed to extend from a power distributor apparatus so that any
consumer or user readily and simply assemble a lighting fixture
such as chandelier without any danger.
Further objects and advantages of the invention will become
apparent upon consideration of the specification and the
accompanying drawings in which:
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded perspective view showing a preferred
embodiment of a distributor apparatus according to the present
invention,
FIG. 2 is a plan view of the base shown in FIG. 1,
FIG. 3 is a section taken along line III--III of FIG. 1,
FIG. 4 is a rear view of the cover shown in FIG. 1,
FIG. 5 is a sectional view taken along line V--V of FIG. 4,
FIG. 6 is a section of the screw or clamp ring shown in FIG. 1,
FIG. 7 is a representation showing a distributor assembly in
section,
FIG. 8 is a perspective view of one form of a distributor
member,
FIG. 9 is a side view showing the distributor assembly to which a
plurality of distributor members is mounted, with partially broken
away,
FIG. 10 is a perspective view of the distributor assembly to which
a lamp shade is mounted, with partially broken away, and
FIG. 11 through 14 are perspective views showing various modes of
the distributor assembly and distributor members according to
choice of users or consumers.
DESCRIPTION OF THE PREFERRED EMBODIMENT
In FIG. 1 there is shown a power distributor apparatus of the
present invention designated at numeral 1, which comprises a base
2, spacer ring 3, cover 4, and a screw or clamp ring 5 with all
being formed of synthetic resin made insulating material.
The cover 2 includes, as best shown in FIGS. 1, 2 and 3, a circular
bottom 6, periphery wall 7 extending upwardly of the bottom. The
periphery wall 7 is formed relatively thicker and provided with a
series of lands 8, and banks 9 upwardly extending from the interior
of the wall beyond the lands. The banks 9 are arranged to be
alighment with an inner diameter of the screw ring 5 and threaded
at their outer periphery to receive the ring 5. A plurality of
recesses 10 are formed optionally spaced with one another with
respect to the periphery wall and terminate adjacent the bottom 6
of the wall 7. Some of the recesses may be formed to leave thin
walls 11 in a planar alignment with the exterior of the wall 7. The
thin wall 11 is required to have such a dimension that it is
readily knocked out and off by applying relatively weak impact
thereto. However, means is provided so that the thin wall 11 is
prevented from cracking or coming to pieces even if an undesirable
external force is applied thereto. That is to say, a rib 12 is
integrally formed with the periphery wall 7 at the exterior thereof
to provide strength for the thin wall 11 so as to withstand an
undesirable external force.
As will be fully described later, the thin wall 11 may be formed
into an opening in cooperation with the recess 10 to serve for
receiving a distributor member by way of a knockout. The opening
thus formed is designated at numeral 13, as shown in FIGS. 1 and 2.
Of course, the opening or openings 13 may be preformed at the stage
of molding of the base 2 if no attention is paid to poor appearance
due to the opening or openings out of use. The bottom of the base 2
is formed with a plurality of circumferentially and radially
extending vertical partition walls 14 which define a plurality of
receptacle chambers or compartmenets 15 in cooperation with one
another. Each of the receptacle chambers 15 is so dimensioned to
fittedly receive a terminal of a power distributor as will be
described later. A hub or projective member 16 is formed on the
bottom surface of the base 2 at the center thereof and provided
with a threaded aperture 17 passing therethrough. An elongated
electrode loop 18 is circumferentially and cocentrically disposed
on the bottom surface of the base 2 to pass between the
circumferential and radial partition walls 14 and is secured by a
screw 19 adjacent the periphery wall 7 at the interior thereof. The
electrode 18 is provided with an enlarged portion 20 which is
preferably in alignment with the pair of diametrically positioned
recesses 10 and which is fixed by a screw 21 to the hub portion 16.
An electrode tongue 22 is provided electrically insulated from and
parallel to the electrode loop 18 and mounted by screws 23, 24
adjacent one of the circumferential partition wall 14. A pair of
bayonet contacts 25 and 26 are integrated with the electrode loop
18 and electrode tongue 22 at the one ends thereof, respectively
and opposed to each other. The electrode tongue 22 is also provided
with a single bayonet contact 27 at opposite end thereof. The
electrode loop 18 includes a pair of tapped holes 28, 29 at its
enlarged portion 20, and the electrode tongue 22 has a pair of
tapped holes 30, 31. The holes 28 and 30 are in alignment with two
holes 28' and 30' bored through hub portions 16.
The spacer ring 3 has almost the same outer diameter as that of the
base 2 and is designed to snugly receive the bank 9.
The cover 4 is in a round form, as shown in FIGS. 1, 4 and 5 and
includes an upwardly and centrally extending hollow neck portion 34
on the outer side thereof. The hollow neck portion 34 is adapted to
have an open end 35 and two threaded portions 36 and 37. The one
thread 36 is dimensioned to screw a conduit tube (not shown) to the
order of 0.47 inch therein whereas the other thread 37 is
dimensioned to screw a conduit tube (not shown) to the order of
0.35 inch. With this arrangement, the hollow neck portion 34 may
allow a power line to pass therethrough or the conduit tube to
screw therein. When the conduit tube is screwed in the hollow neck
portion, its excess thrust movement is prevented by presence of
either step portion 38 or a step portion 39 defined by the threaded
portion 36 or 37. This insures a tight connection of the cover 4
and the conduit tube and prevents the conduit tube from projecting
from the inner side 33 of the cover 4. A tapped hole 40 is
laterally formed in the neck portion 34 to receive a screw (not
shown) therein thereby fixedly securing a cord or power line with
respect to the cover 4.
The cover 4 is designed relatively thicker and formed with a flange
41 at the periphery thereof. The flange 41 is of the diameter same
as the outer diameter defined by the series of the banks 9. The
lower portion 42 below the flange 41 is fabricated to be snugly
fitted into the banks 9 internally thereof. A recess 43 is formed
in the cover on the underside thereof to leave four land portions.
A pair of pins 44, 45 are mounted spaced from each other on the
recess adjacent the respective lands. A partition 46 is disposed
between the pair of the pins 44, 45 on the recess. A tiny
quadrangular column 48 of electrically insulated material is
interposed between the pins 44, 45 and secured by a screw 47 at 49
to the underside 33 of the cover. These pins 44, 45 will serve to
hold the column 48 against its pivotal movement thereby ensuring
its position. The column 48 includes two compartments defined by a
partition 50 and the outer walls. A pair of receptacle contacts 52,
53 are received in those compartments, and they are spacedly
disposed on an insulated plate 51 internally of the column. An
insulative relationship between the contacts 52 and 53 is
maintained by the presence of the partition 50. Each of the ends of
the respective contacts 52, 53 extends from the insulated plate 51
on the underside thereof where a pair of lead wires for the power
line (not shown) are soldered. A pair of notches are formed on one
of the sides of the column 48 to receive the lead wires therein.
This allows the bayonet contacts 25, 26 on the base to be inserted
in the two compartments and in contact with the receptacle contacts
52, 53 in the column 48 when the cover 4 is mounted over the base
4. An end electrode loop 56 is secured by screws 57, 58 to the
lands on the underside 33 of the cover. The annular electrode or
electrode loop 56 has one end which is adapted to form one 59 of
receptacle contacts to cooperate with the other 60 secured to the
base by means of a set screw 57 so as to receive a single bayonet
contact 27 therein when the cover 4 is threaded into the base
2.
The screw ring or clamp ring 5 shown in FIG. 1 through 5 is
provided for rigidly mounted the cover 4 to the base 2. To this
end, the ring 5 is threaded at its inner side as shown at 61. The
ring 5 is formed with an inwardly extending flange 62 at the upper
periphery thereof to prevent screw motion of the ring with respect
to the base 2 when the flange 41 is engaged by the flange 62. In
this manner, the cover 4 is fastened to the base 2.
The distributor apparatus is shown in FIG. 7 as a unit or assembly
into which the base 2, spacer ring 3, cover 4, and the clamp ring
or screw ring 5 are assembled. In FIG. 7, similar parts are
designated by similar numerals used in FIGS. 1 to 6.
Within a compartment or chamber 63 defined by the base 2 and cover
4, the annular electrodes 18 and 56 are oppositely disposed with
respect to each other, the electrode 18 being electrically led by
the bayonet contact 25 to the receptacle contact 52 in the column
48 while the other electrode 56 being electrically led through the
bayonet contacts 26, 27 of the electrode tongue 22 to the
receptacle contact 53 within the column.
Where the cover 4 is kept away from the base 2 out of the assembly,
an electric current is not applied to the annular electrodes 18, 56
if the contacts 52, 53 be electrically energized from the power
line (not shown) since the receptacle contacts 52, 53 are out of
contact with the bayonets contacts 25, 26. Further, the receptacle
contacts 52, 53 are accommodated within the insulated column 48 to
save any one in assembling of the apparatus from dangerous
electrification even if the power line is led to the receptacle
contacts 52, 53. All components except for the spacer ring 3 are
assembled into the apparatus, there is provided a clearance between
the lower edge of the clamp ring 5 and the upper edge of the base 2
to mate with the thickness of the spacer ring 3 thereby receiving a
lamp shade or the like in the apparatus, as will be described
hereinafter.
One form of a power distributor member 64 is shown in FIG. 8 as
being mounted to the distributor apparatus to distribute an
electric current to a load such as lamp or the like. The
distributor member 64 comprises a conduit tube 65, lamp socket 66
mounted to the conduit tube at one end thereof, and a terminal
fixture 67 integrally molded to the member at the other end
thereof. The terminal fixture 67 is dimensioned to snugly be fitted
in the receptacle chamber 15 provided in the compartment or chamber
63 of the apparatus and preferable in a substantial square form as
shown in FIG. 8. A pair of contact terminals 68, 69 are connected
to a pair of leads (not shown) disposed in the conduit tube 65 and
extend along the terminal fixture 67, and then terminate in
opposite sides thereof. The contact terminals 68, 69 are provided
with additional terminals 70, 71 integrally formed thereof and
extending along the adjacent sides of the fixture 67. These
terminals are held in position in recesses formed in each sides of
the fixture. The pair of the leads (not shown) of which one ends
are connected to the contact terminals 68, 69 are coupled at the
other ends thereof to the lamp socket 66.
FIG. 9 shows a relationship between the distributor apparatus 1 and
a power line 72, and the distributor members 64.
The power line 72 passes through the open end 35 of the cover 4 to
allow a pair of leads to be soldered to the receptacle contacts 52.
53. These leads (not shown) are clamped by respective notches 54,
55 formed in the column 48 which receives the receptacle contacts
52, 53 therein. The column 48 is secured by the screw 47 to the
cover 4 on the one side thereof. In this manner, the receptacle
contacts 52, 53 establish a connection with the power line 72 to
allow the latter to be connected to a commercial power line.
For mounting a plurality of power distributor members 64, thinner
portions 11 where it is desired to fix the members 64 are knocked
out by suitable means to form the corresponding number of the
openings 13, and then the members 64 are at their terminal fixtures
67 received through the openings 13 within the associated
receptacle chambers 15. This enables the contact terminal 68 to be
electrically in contact with the annular electrode 18. After
mounting and holding of the terminal fixtures 67 of the distributor
members 64 within the receptacle chambers 15, the spacer ring 3 is
inserted into the base 2 while the cover 4 is in turn mounted over
the spacer ring 3 to the base 2. The clamp ring 5 through which the
power line 72 passes is rotated to be threaded into the threaded
bank 9 until rotation of the clamp ring 5 is caught. This allows
the cover 4 to be rigidly fastened to the base to connect the
annular electrode 56 in the cover 4 to the contact terminal 69 on
the distributor member 64 thereby firmly coupling each of the
distributor members to the apparatus by snugly mounting the
fixtures 67 within the chambers. In the manner above set forth,
fixture of the power line 72 and the distributor members 64 to the
apparatus 1 may be completed, as shown in FIG. 9.
As previously mentioned, the cover 4 is fastened to the base 2 to
apply a current to the annular electrodes 18, 56 so that a lamp
mounted to the socket 66 (not shown) is supplied with a current
from the contact terminals 68, 69 connected to these annular
electrodes via the lead in the conduit tube 65 and is then lit.
Each of the distributor members 64 shown in FIG. 9 is mounted to
the apparatus so as to allow the lamp socket 66 to extend
downwardly thereof, however, the distributor member 64 may be
rotated by 90.degree. around the axis of the conduit tube 65 to
mount the terminal fixture 67 within the chamber 15 thereby
allowing the lamp socket 66 to extend horizontally of the
apparatus. It is apparent from the foregoing that if the
distributor member 64 is in an angulated form, the socket 66 may
assume four directions so that a plurality of the lamps may be
selectively oriented as desired. Although the cord is used as power
line 72 for connection with the apparatus, as seen from FIG. 9, a
conduit tube may be employed instead of the cord. In case of the
conduit tube, it is threaded at the one end thereof so as to be
screwed into the threaded portion 36 or 37 of the hollow neck
portion 34 to connect the conduit tube with the cover 4. Further, a
cord may be used instead of the conduit tube 65 if it is provided
with a similar terminal fixture at the one end thereof.
FIG. 10 shows the distributor apparatus to which a lamp shade 73 is
mounted dependent on a clearance between the upper edge 8 of the
base 2 and the clamp ring 5. This eliminate the use of the spacer
ring 3. The shade 73 has a central opening of a diameter less than
the outer diameter of the threaded bank 9 but more than the outer
diameter of the peripheral wall 7 so as to be engaged by the clamp
ring 5 when screwed into the threaded bank 9. This enables the
shade 73 to be held between the upper edge 8 of the base 2 and the
clamp ring 5. It is noted that since such a clearance is formed in
a condition where the clamp ring 5 is completely fastened to the
threaded bank 9, the clamp ring 5 is stably and constantly held in
position with respect to the base 2 in the presence of the lamp
shade 73. For this reason, no idle space or clearance by which a
constant of the contact terminals 68, 69 with the annular
electrodes 18, 56 is incomplete to cause an electrical accident, is
not produced.
A plurality of distributor apparatus in combination with a
plurality of distributor members are shown in FIGS. 11 through 14
as in various manners. A power line 75 is shown as cord or conduit
tube depending from a ceiling 76 in FIGS. 11 through 13 whereas it
is shown as conduit tube upwardly extending from a pedestal 77 in
FIG. 14. The power line 75 is connected to two or more distributor
apparatus 78 each carrying a plurality of distributor members 79
with lamps 80 mounted thereto as in the aforementioned manner.
In FIG. 13, the distributor apparatus 78 carries a pair of
connection power lines such as conduit tubes 81, 82 extending from
the wall of the apparatus in both directions, with conduit tubes
81, 82 each having one end to which the terminal fixture is
mounted. By receiving this terminal fixture in the apparatus, the
conduit tube is rigidly supported thereby. The apparatus also
carries a pair of the distributor members 79, and a conduit tube 89
connected to a distributor apparatus 90 through a threaded aperture
of the base and an open end of the cover. The distributor apparatus
90 supports the four distributor members. Each of the conduit tubes
81, 82 has the other end connect to each of different distributor
apparatus 83, 84. These apparatus 83, 84 are provided with the
respective distributor members, namely, two sets of three members
85 and 87.
A pair of leads (not shown) in the connection power line or conduit
tube 89 are connected at the one ends thereof to the annular
electrode similar to the electrode 18 and the electrode tongue
similar to the electrode tongue 22 and coupled at the other ends
thereof to the receptacle contacts similar to the contacts 52, 53.
A plurality of distributor apparatus, as shown, may be electrically
and mechanically connected by the conduit tube or tubes to one
another.
The distributor apparatus 90 shown in FIG. 11 holds a conduit tube
93 which is at one end thereof threaded into the threaded aperture
17 and which extends downwardly of the apparatus to the lamp socket
end having a lamp 94. A pair of leads (not shown) in the conduit
tube 93 each include one ends connected to lamp sockets for lamps
94 and the other ends coupled to the electrode annular 18 and
electrode tongue 22.
It is apparent, as best shown in FIGS. 11 to 14, that the
distributor apparatus according to the invention is capable of not
only distributing an electric current to a plurality of loads such
as lamps or the like but also connecting one to the other
vertically or horizontally. The apparatus may be in the form of
suspension from the ceiling or upright extending from the
pedestal.
In accordance with the distributor apparatus of the invention, a
plurality of openings are formed in the periphery wall of the base
to receive the respective distributor members at one in the
chambers or compartment and the screw ring is screwed into the
base. With such a simple operation, the distributor member or
members may be mounted to the distributor apparatus thereby
ensuring electrical and mechanical mounting irrespective of skill
of user even if the distributor apparatus, distributor member, and
accessories are separately shipped for user.
While the preferred embodiment has been described, it should be
understood that various changes or modifications may be made within
the scope of the appended claims without departing from the spirit
of the invention.
* * * * *