Information
-
Patent Grant
-
6547582
-
Patent Number
6,547,582
-
Date Filed
Wednesday, May 30, 200123 years ago
-
Date Issued
Tuesday, April 15, 200321 years ago
-
Inventors
-
Original Assignees
-
Examiners
- Luebke; Renee
- Nguyen; Phuongchi
Agents
-
CPC
-
US Classifications
Field of Search
US
- 439 339
- 439 419
- 439 667
- 439 619
- 439 188
- 439 340
- 439 414
- 439 86
- 439 87
- 439 226
- 439 227
- 439 228
- 439 229
- 439 230
-
International Classifications
-
Abstract
A lampholder for receiving a cap of a lamp includes a body, a receiving portion, and lead wires: the receiving portion is provided in the body and to be connected to the cap; the lead wires are connected to the receiving portion. The receiving portion is made of conductive resin. This configuration can reduce the parts, simplify assembly, lower the cost, and improve the productivity.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a lampholder.
2. Description of the Related Art
As shown in
FIG. 9
, a conventional lampholder includes a body
47
, a female screw shell
48
, a central contact spring
49
, a cover
50
, power terminal boards
52
a,
52
b,
and lead wires
53
a,
53
b.
The body
47
is made of insulating resin or ceramic and is in the form of a cylinder with the bottom. The female screw shell
48
is made of metal and connected electrically to a shell (not shown), e.g., of an E-type cap (not shown) for a lamp (not shown). Similarly, the central contact spring
49
is made of metal and connected electrically to an eyelet (not shown) of the cap. The cover
50
is made of insulating resin or ceramic and provided at the end of the body
47
. The power terminal boards
52
a,
52
b
are fastened on the inner surface of the cover
50
with a pair of screws
51
(one of them is not shown). The lead wires
53
a,
53
b
are connected electrically to the power terminal boards
52
a,
52
b.
The body
47
and the cover
50
are connected mechanically with two screws
54
a,
54
b.
One screw
54
a
mechanically connects the body
47
and the female screw shell
48
, and also electrically connects the female screw shell
48
and the power terminal board
52
a.
The other screw
54
b
mechanically connects the body
47
and the central contact spring
49
, and also electrically connects the central contact spring
49
and the power terminal board
52
b.
A screw
55
is used to adjust the amount of movement of the central contact spring
49
when the cap is inserted. The screw
55
prevents the contact failure between the central contact spring
49
and the eyelet resulting from unnecessary movement of the central contact spring
49
toward the cover
50
.
However, in the conventional lampholder, many screws or the like are necessary to fasten each part together, particularly, to fasten the component of resin or ceramic, such as the body
47
, and that of metal, such as the female screw shell
48
. This requires the steps of tightening those screws as well. In other words, the parts are increased and the process is complicated, which in turn increases the cost and reduces the productivity.
SUMMARY OF THE INVENTION
Therefore, with the foregoing in mind, it is an object of the present invention to provide a lampholder that can achieve the reduction of cost and the improvement of productivity by reducing the parts and simplifying the process.
A lampholder of the present invention for receiving a lamp cap includes a body, a receiving portion provided in the body and to be connected to the cap, and a lead wire connected to the receiving portion. The receiving portion is made of conductive resin.
Unlike a conventional lampholder, this configuration eliminates the need to fasten the component of resin or ceramic, such as a body, and that of metal, such as a female screw shell, together. Therefore, many screws or the like are not necessary. As a result, the parts can be reduced and the steps of tightening the screws or the like can be omitted. Thus, the reduction of cost as well as the improvement of productivity can be achieved.
These and other advantages of the present invention will become apparent to those skilled in the art upon reading and understanding the following detailed description with reference to the accompanying figures.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is a cross-sectional front view showing a lampholder of Embodiment 1 of the present invention.
FIG. 2
is a cross-sectional front view showing a lampholder of Embodiment 2 of the present invention.
FIG. 3
is a cross-sectional front view showing a lampholder of Embodiment 3 of the present invention.
FIG. 4
is a cross-sectional front view showing a lampholder of Embodiment 4 of the present invention.
FIG. 5
is a cross-sectional front view showing a lampholder of Embodiment 5 of the present invention.
FIG. 6
is a cross-sectional front view showing a lampholder of Embodiment 6 of the present invention.
FIG. 7
is a cross-sectional front view showing a lampholder of Embodiment 7 of the present invention.
FIG. 8
is a cross-sectional front view showing a lampholder of Embodiment 8 of the present invention.
FIG. 9
is a cross-sectional front view showing a conventional lamp holder.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
Embodiment 1
As shown in
FIG. 1
, an E-type cap
2
(e.g., E26-type), e.g., for a bulb-shaped fluorescent lamp
1
is inserted in a lampholder of Embodiment 1 of the present invention.
The lampholder includes a body
3
, a receiving portion
4
, and a cover
5
. The body
3
is made of insulating resin and is in the form of a cylinder having a length of 35 mm, outer diameter of 35 mm, and inner diameter of 30 mm. The receiving portion
4
is made of conductive resin, provided on the inner surface of the body
3
, and to be connected electrically to the cap
2
. The cover
5
has a height of 15 mm and outer diameter of 35 mm, and is provided at the end of the body
3
.
The body
3
and the receiving portion
4
are formed as an integral component.
The body
3
is connected to the cover
5
by engaging a convexity
3
a
at the end of the body
3
with a concavity
5
a
at the end of the cover
5
.
Examples of the conductive resin used for the receiving portion
4
include a material prepared by mixing polybutylene terephthalate resin or polyphenylene sulfide resin with a conductive material, such as carbon black, metallic fiber, carbon fiber, metallic flakes, metallized glass beads, metallized glass fiber, and organic polymer.
The receiving portion
4
is provided with a first terminal
6
and a second terminal
7
. The first terminal
6
has an internal thread
6
a
on the inner surface, into which a shell
2
a
of the cap
2
, having an external thread, is screwed to establish the electrical connection between them. The second terminal
7
has a protruding contact portion
7
a
(with a protrusion length of 1 mm to 3 mm) that is connected electrically to an eyelet
2
b
at the end of the cap
2
. The ends of the lead wires
8
a,
8
b,
having a cross-sectional area of 0.75 mm
2
to 1.25 mm
2
, are embedded directly in the first and the second terminals
6
,
7
, respectively, to establish the electrical connection. The length of the embedded portion of each lead wire
8
a,
8
b
is 5 mm or more. The other ends of the lead wires
8
a,
8
b
are drawn from a hole
5
b
in the center of the cover
5
to the outside of the lampholder. An insulating member
9
is provided between the first terminal
6
and the second terminal
7
to insulate the two terminals from one another.
Unlike a conventional lampholder, the above configuration of a lampholder of Embodiment 1 of the present invention eliminates the need to fasten the component of resin or ceramic, such as a body, and that of metal, such as a female screw shell, together. Therefore, many screws or the like are not necessary. As a result, the parts can be reduced significantly and the steps of tightening the screws or the like also can be reduced, compared with the conventional lampholder. Thus, the reduction of cost as well as the improvement of productivity can be achieved.
In particular, since the body
3
of insulating resin and the receiving portion
4
of conductive resin are formed as an integral component, the assembly of the body
3
and the receiving portion
4
can be omitted, thus increasing the productivity further.
Embodiment 2
Next, a lampholder of Embodiment 2 of the present invention has the same configuration as that of a lampholder of Embodiment 1 of the present invention except that the structure of a receiving portion
10
and a means for connecting lead wires
8
a,
8
b
and the receiving portion
10
are different, as shown in FIG.
2
.
The receiving portion
10
is provided with a first terminal
11
and a second terminal
12
. The first terminal
11
is made of conductive resin and has an internal thread
11
a
on the inner surface, into which a shell (not shown) of a cap (not shown), having an external thread, is screwed to establish the electrical connection between them. The second terminal
12
is made of conductive resin and has a protruding contact portion
12
a
(with a protrusion length of 1 mm to 3 mm) that is connected electrically to an eyelet (not shown) at the end of the cap. A body
3
and the receiving portion
10
are formed as an integral component.
An insulating member
9
is provided between the first terminal
11
and the second terminal
12
to insulate the two terminals from one another. Each of the first and the second terminals
11
,
12
has a through hole
14
for screws so that a fastener
13
composed, e.g., of a tapping screw is driven into the hole.
The lead wire
8
a
is connected electrically to the first terminal
11
by fastening a pressure connector
15
with the fastener
13
, the pressure connector
15
being connected to the end of the lead wire
8
a.
Similarly, the lead wire
8
b
is connected electrically to the second terminal
12
by fastening a pressure connector
15
with the fastener
13
, the pressure connector
15
being connected to the end of the lead wire
8
b.
In
FIG. 2
, reference numeral
16
indicates a washer.
Unlike a conventional lampholder, the above configuration of a lampholder of Embodiment 2 of the present invention eliminates the need to fasten the component of resin or ceramic, such as a body, and that of metal, such as a female screw shell, together. Therefore, many screws or the like are not necessary. As a result, the parts and the steps of tightening the screws or the like can be reduced, compared with the conventional lampholder. Thus, the reduction of cost as well as the improvement of productivity can be achieved. In addition, the lead wires
8
a,
8
b
can be removed from the lampholder easily, which facilitates the replacement of damaged parts caused, e.g., by disconnection of the lead wires
8
a,
8
b.
Embodiment 3
Next, a lampholder of Embodiment 3 of the present invention has the same configuration as that of a lampholder of Embodiment 2 of the present invention except that screws (fasteners
17
a
in
FIG. 3
) and nuts (fasteners
17
b
in
FIG. 3
) are used instead of tapping screws to connect a receiving portion
10
and lead wires
8
a,
8
b
electrically, as shown in FIG.
3
.
In
FIG. 3
, reference numeral
18
indicates a hole for screws.
Unlike a conventional lampholder, the above configuration of a lampholder of Embodiment 3 of the present invention eliminates the need to fasten the component of resin or ceramic, such as a body, and that of metal, such as a female screw shell, together, just as in the lampholder of Embodiment 2 of the present invention. Therefore, many screws or the like are not necessary. As a result, the parts and the steps of tightening the screws or the like can be reduced, compared with the conventional lampholder. Thus, the reduction of cost as well as the improvement of productivity can be achieved. In addition, the lead wires
8
a,
8
b
can be removed from the lampholder easily, which facilitates the replacement of damaged parts caused, e.g., by disconnection of the lead wires
8
a,
8
b.
Embodiment 4
Next, a lampholder of Embodiment 4 of the present invention includes a body
19
, a receiving portion
20
, and a cover
21
, as shown in FIG.
4
. The body
19
is made of insulating resin and is in the form of a cylinder having a length of 35 mm, outer diameter of 35 mm, and inner diameter of 30 mm. The receiving portion
20
is made of conductive resin, provided on the inner surface of the body
19
, and to be connected electrically to a cap (not shown). The cover
21
has a height of 15 mm and outer diameter of 35 mm, and is provided at the end of the body
19
.
The body
19
and the receiving portion
20
are formed as an integral component.
The receiving portion
20
is provided with a first terminal
22
and a second terminal
23
. The first terminal
22
has an internal thread
22
a
on the inner surface, into which a shell (not shown) of the cap, having an external thread, is screwed to establish the electrical connection between them. The second terminal
23
has a protruding contact portion
23
a
(with a protrusion length of 1 mm to 3 mm) that is connected electrically to an eyelet (not shown) at the end of the cap. Each of the first and the second terminals
22
,
23
has a through hole
25
for screws so that a fastener
24
composed, e.g., of a screw is inserted into the hole. An insulating member
9
is provided between the first terminal
22
and the second terminal
23
to insulate the two terminals from one another.
The cover
21
has power terminal boards
27
a,
27
b
on the inner surface, the power terminal boards
27
a,
27
b
being connected electrically to the ends of the lead wires
8
a,
8
b
by a pair of screws
26
(one of them is not shown). The other ends of the lead wires
8
a,
8
b
are drawn from a hole
21
a
in the center of the cover
21
to the outside of the lampholder.
The first terminal
22
and the power terminal board
27
a
are connected electrically via the fastener
24
. Similarly, the second terminal
23
and the power terminal board
27
b
are connected electrically via the fastener
24
. Those fasteners
24
connect the body
19
and the cover
21
mechanically as well.
Unlike a conventional lampholder, the above configuration of a lampholder of Embodiment 4 of the present invention eliminates the need to fasten the component of resin or ceramic, such as a body, and that of metal, such as a female screw shell, together. Therefore, many screws or the like are not necessary. As a result, the parts and the steps of tightening the screws or the like can be reduced, compared with the conventional lampholder. In addition, the mechanical connection between the body
19
and the cover
21
and the electrical connection between the receiving portion
20
and the lead wires
8
a,
8
b
can be made at the same time. Thus, the cost can be reduced and the productivity also can be increased further.
Embodiment 5
Next, a lampholder of Embodiment 5 of the present invention has the same configuration as that of a lampholder of Embodiment 1 of the present invention except that a receiving portion
4
and lead wires
8
a,
8
b
are connected electrically via metallic terminals
28
,
29
that are made of copper or brass and embedded in the receiving portion
4
, as shown in FIG.
5
.
The metallic terminal
28
is in the form of a plate having a length of 27 mm, width of 5 mm to 7 mm, and thickness of 0.1 mm to 1.0 mm. The length of the embedded portion of the metallic terminal
28
in a first terminal
6
is 20 mm. On the other hand, the metallic terminal
29
is in the form of a plate having a length of 20 mm, width of 5 mm to 7 mm, and thickness of 0.1 mm to 1.0 mm and is bent to have an L shape. The length of the embedded portion of the metallic terminal
29
in a second terminal
7
is 13 mm.
The lead wires
8
a,
8
b
are connected electrically to the metallic terminals
28
,
29
, respectively, by caulking.
Unlike a conventional lampholder, the above configuration of a lampholder of Embodiment 5 of the present invention eliminates the need to fasten the component of resin or ceramic, such as a body, and that of metal, such as a female screw shell, together. Therefore, many screws or the like are not necessary. As a result, the parts and the steps of tightening the screws or the like can be reduced, compared with the conventional lampholder. Thus, the reduction of cost as well as the improvement of productivity can be achieved. In addition, since the receiving portion
4
and the lead wires
8
a,
8
b
are connected electrically via the metallic terminals
28
,
29
, the operation of connecting the receiving portion
4
and the lead wires
8
a,
8
b
can be performed easily.
In particular, the metallic terminal
29
is bent to have an L shape, thereby preventing it from slipping off the receiving portion
4
(the second terminal
7
).
Example 6
Next, a lampholder of Embodiment 6 of the present invention includes a body
30
, a first terminal
31
, a central contact spring
32
, and a cover
5
, as shown in FIG.
6
. The body
30
is made of insulating resin and is in the form of a cylinder with the bottom, having a total length of 35 mm, outer diameter of 35 mm, and inner diameter of 30 mm. The first terminal
31
is made of conductive resin and provided on the inner surface of the body
30
. Also, the first terminal
31
has an internal thread
31
a
on the inner surface, into which a shell (not shown) of a cap (not shown), having an external thread, is screwed to establish the electrical connection between them. The central contact spring
32
is made of copper or brass, has an L shape, length of 32 mm, width of 5 mm to 7 mm, and thickness of 0.2 mm to 1.0 mm, and is connected electrically to an eyelet (not shown) at the end of the cap. The cover
5
has a height of 15 mm and outer diameter of 35 mm, and is provided on a bottom
30
a
of the body
30
.
The body
30
and the first terminal
31
are formed as an integral component.
The cover
5
is connected to the body
30
by engaging a concavity
5
a
at the end of the cover
5
with a convexity
30
b
at the bottom
30
a
of the body
30
.
A metallic terminal
28
in the form of a plate having a length of 27 mm, width of 5 mm to 7 mm, and thickness of 0.1 mm to 1.0 mm is embedded in the first terminal
31
to establish the electrical connection between them. The length of the embedded portion of the metallic terminal
28
is 20 mm. Also, the metallic terminal
28
is connected electrically to a lead wire
8
a
by caulking, the lead wire
8
a
being drawn from a hole
5
b
in the center of the cover
5
to the outside of the lampholder. In other words, the lead wire
8
a
and the first terminal
31
are connected electrically via the metallic terminal
28
.
The bottom
30
a
of the body
30
holds the central contact spring
32
, which penetrates the bottom
30
a.
One end of the central contact spring
32
is connected electrically to a lead wire
8
b
by caulking. When a cap is inserted in the lampholder, the other end of the central contact spring
32
is pushed toward the cover
5
into contact with a projection
30
c
at the center of the bottom
30
a
of the body
30
and is connected electrically to the eyelet of the cap. In this case, force acts to move the other end of the central contact spring
32
back to the cap side, so that the electrical connection between the central contact spring
32
and the eyelet can be established reliably.
Unlike a conventional lampholder, the above configuration of a lampholder of Embodiment 6 of the present invention eliminates the need to fasten the component of resin or ceramic, such as a body, and that of metal, such as a female screw shell, together. Therefore, many screws or the like are not necessary. As a result, the parts and the steps of tightening the screws or the like can be reduced, compared with the conventional lampholder. Thus, the reduction of cost as well as the improvement of productivity can be achieved. In addition, the central contact spring
32
of metal is used to make the electrical connection with the eyelet, thereby decreasing contact failure and increasing reliability.
Embodiment 7
Next, a lampholder of Embodiment 7 of the present invention includes a body
33
, a first terminal
34
, a central contact spring
35
, and a cover
5
, as shown in FIG.
7
. The body
33
is made of insulating resin and is in the form of a cylinder with the bottom, having a total length of 35 mm, outer diameter of 35 mm, and inner diameter of 30 mm. The first terminal
34
is made of conductive resin and provided on the inner surface of the body
33
. Also, the first terminal
34
has an internal thread
34
a
on the inner surface, into which a shell (not shown) of a cap (not shown), having an external thread, is screwed to establish the electrical connection between them. The central contact spring
35
is made of copper or brass, has an L shape, length of 25 mm, width of 5 mm to 7 mm, thickness of 0.2 mm to 1.0 mm, and is connected electrically to an eyelet (not shown) at the end of the cap. The cover
5
has a height of 15 mm and outer diameter of 35 mm, and is provided on the side of a bottom
33
a
of the body
33
.
The body
33
and the first terminal
34
are formed as an integral component.
The cover
5
is connected to the body
33
by engaging a concavity
5
a
at the end of the cover
5
with a convexity
33
b
at the bottom
33
a
of the body
33
.
A metallic terminal
36
in the form of a plate having a length of 25 mm, width of 5 mm to 7 mm, and thickness of 0.1 mm to 1.0 mm is embedded in the first terminal
34
to establish the electrical connection between them. The length of the embedded portion of the metallic terminal
36
is 18 mm. A pressure connector
37
a,
connected to a lead wire
8
a,
is fastened and electrically connected to the metallic terminal
36
with a fastener
38
a
composed of a screw.
The bottom
33
a
of the body
33
holds the central contact spring
35
, which penetrates the bottom
33
a.
A pressure connector
37
b,
connected to a lead wire
8
b,
is fastened and electrically connected to the central contact spring
35
with a fastener
38
b
composed of a screw.
In
FIG. 7
, reference numeral
39
indicates a hole for screws.
Unlike a conventional lampholder, the above configuration of a lampholder of Embodiment 7 of the present invention eliminates the need to fasten the component of resin or ceramic, such as a body, and that of metal, such as a female screw shell, together. Therefore, many screws or the like are not necessary. As a result, the parts and the steps of tightening the screws or the like can be reduced, compared with the conventional lampholder. Thus, the reduction of cost as well as the improvement of productivity can be achieved. In addition, the central contact spring
35
of metal is used to make the electrical connection with an eyelet, thereby decreasing contact failure and increasing reliability. Moreover, the lead wires
8
a,
8
b
can be removed from the lampholder easily, which facilitates the replacement of damaged parts caused, e.g., by disconnection of the lead wires
8
a,
8
b.
Embodiment 8
Next, a lampholder of Embodiment 8 of the present invention includes a body
30
, a first terminal
31
, a central contact spring
40
, and a cover
41
, as shown in FIG.
8
. The body
30
is made of insulating resin and is in the form of a cylinder with the bottom. The first terminal
31
is made of conductive resin and provided on the inner surface of the body
30
. Also, the first terminal
31
has an internal thread
31
a
on the inner surface, into which a shell (not shown) of a cap (not shown), having an external thread, is screwed to establish the electrical connection between them. The central contact spring
40
is made of copper or brass, has an L shape, length of 30 mm, width of 5 mm to 7 mm, and thickness of 0.2 mm to 1.0 mm, and is connected electrically to an eyelet (not shown) at the end of the cap. The cover
41
has a height of 15 mm and outer diameter of 30 mm, and is provided on a bottom
30
a
of the body
30
.
The body
30
and the first terminal
31
are formed as an integral component.
The body
30
is connected to the cover
41
by engaging a convexity
30
b
at the bottom
30
a
of the body
30
with a concavity
41
a
at the end of the cover
41
.
A metallic terminal
42
in the form of a plate having a length of 27 mm, width of 5 mm to 7 mm, and thickness of 0.1 mm to 1.0 mm is embedded in the first terminal
31
to establish the electrical connection between them. The length of the embedded portion of the metallic terminal
42
is 20 mm.
The bottom
30
a
of the body
30
holds the central contact spring
40
, which penetrates the bottom
30
a.
Two clip terminals
43
a,
43
b
are embedded in the cover
41
on the inner surface thereof. One clip terminal
43
a
clips the end of the metallic terminal
42
. Similarly, the other clip terminal
43
b
clips the end of the central contact spring
40
.
Each of two lead wires
8
a,
8
b,
drawn from a hole
41
b
in the center of the cover
41
to the outside of the lampholder, has a pressure connector
44
at the end thereof. The pressure connectors
44
are connected electrically to the clip terminals
43
a,
43
b,
respectively, e.g., by screws
45
or the like.
In
FIG. 8
, reference numeral
46
indicates a hole for screws.
Unlike a conventional lampholder, the above configuration of a lampholder of Embodiment 8 of the present invention eliminates the need to fasten the component of resin or ceramic, such as a body, and that of metal, such as a female screw shell, together. Therefore, many screws or the like are not necessary. As a result, the parts and the steps of tightening the screws or the like can be reduced, compared with the conventional lampholder. Thus, the reduction of cost as well as the improvement of productivity can be achieved. In addition, the central contact spring
40
of metal is used to make the electrical connection with the eyelet, thereby decreasing contact failure and increasing reliability. Moreover, the first terminal
31
and the central contact spring
40
can be connected electrically to the lead wires
8
a,
8
b
easily.
As described in each of the embodiments, the receiving portions
4
,
10
, and
20
to be connected to a cap, including the first terminals
6
,
11
,
22
,
31
, and
34
and the second terminals
7
,
12
, and
23
, are made of conductive resin. Thus, compared with the conventional one made of metal, various means for connecting, e.g., the receiving portion to the lead wires
8
a,
8
b
can be employed. This can facilitate handling and prevent corrosion, such as rust.
In the above embodiments, the lampholder for the E-type cap
2
of the bulb-shaped fluorescent lamp
1
is described. However, the present invention can be applied to the E-type cap or B-type cap of a general incandescent lamp, a high-pressure discharge lamp, or the like.
The invention may be embodied in other forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed in this application are to be considered in all respects as illustrative and not limiting. The scope of the invention is indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are intended to be embraced therein.
Claims
- 1. A lampholder adapted for receiving a lamp cap with a shell having an external thread, comprising:a body made of insulating resin; a receiving portion provided in the body, the receiving portion being made of conductive resin and comprising a first terminal made of conductive resin, the receiving portion further comprising an internal thread to be connected to the external thread of the shell; and a lead wire connected to the receiving portion for supplying electricity to the cap through the receiving portion; wherein the body and the receiving portion are formed as an integral component.
- 2. The lampholder according to claim 1, adapted for receiving a cap having an eyelet at the end, wherein the receiving portion is provided with a second terminal that is made of conductive resin and to be connected to the eyelet.
- 3. The lampholder according to claim 1, adapted for receiving a cap having an eyelet at the end, wherein the body holds a central contact spring that is made of metal and to be connected to the eyelet.
- 4. The lampholder according to claim 1, wherein the lead wire is embedded in the receiving portion to make a connection therebetween.
- 5. The lampholder according to claim 1, wherein the lead wire is connected to the receiving portion by a fastener.
- 6. The lampholder according to claim 1, wherein the lead wire is connected to the receiving portion via a metallic terminal embedded in the receiving portion.
- 7. The lampholder according to claim 1, wherein the lead wire is connected to a clip terminal, and the clip terminal clips a metallic terminal connected to the receiving portion.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2000-170136 |
Jun 2000 |
JP |
|
US Referenced Citations (4)