JP3166795B2 - Lamp socket - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp socket for mounting two fluorescent lamps.

[0002]

2. Description of the Related Art Conventionally, as a lamp socket of this kind,
For example, a lamp socket 1 shown in FIG. 7 is known.

The lamp socket 1 is mounted on a fixture body of a lighting fixture, and has a base at one end of two straight tube-type fluorescent lamps, and these fluorescent lamps are electrically connected to a lighting device. It is a lamp socket for two lights that is connected and mechanically supported by the instrument body.

The lamp socket 1 has a contact piece which is formed by bending a metal plate and is electrically connected to a base pin of a base of each fluorescent lamp in an insulating casing 1a.
2a, 2b, 2c, 2d; terminal pieces 3a, 3b, 3c, 3d which are formed by bending a metal plate and are electrically connected to the lead wires of the lighting device; and contact pieces 2a, 2b, 2c. , 2d and terminal strips 3a, 3b, 3c,
Lead wires 4a, 4b, 4c, 4d for electrically connecting 3d respectively
And is stored. However, according to such a configuration, the contact pieces 2a, 2b, 2c, 2d and the terminal pieces 3
There is a problem that the process of connecting the both ends of the lead wires 4a, 4b, 4c, 4d to a, 3b, 3c, 3d by crimping, spot welding, or soldering is required, and the production efficiency is low. I have.

Further, as shown in FIG. 8, without using the above-mentioned lead wires 4a, 4b, 4c, 4d, connecting portions which come into contact with the respective contact pieces 2a, 2b, 2c, 2d and conduct therewith are integrally projected. Terminal strips 6a, 6
A lamp socket 7 for two lamps using b, 6c and 6d is known. However, according to such a configuration, the connecting portions of the terminal pieces 6a, 6b, 6c, 6d are respectively connected to the contact pieces 2a, 6b, 6c, 6d.
a, 2b, 2c, and 2d are required to be connected by crimping, etc., and the protruding connecting portion is easily deformed. Further, each terminal piece 6a, 6b, 6c, 6d is connected to It has to be formed in a separate shape, and it is difficult to share parts, and there is a problem that manufacturing efficiency is deteriorated due to an increase in the number of types of parts or deterioration in material collection efficiency. .

[0006] Further, FIG.
No. 85, a lamp socket 9 for one lamp using a pair of contact pieces 8a and 8b in a flat U shape.
It has been known. However, according to such a configuration, each of the contact pieces 8a and 8b must be formed in a separate shape, making it difficult to share parts, increasing the number of types of parts,
Alternatively, there is a problem that the manufacturing efficiency is deteriorated due to the deterioration of the material collecting efficiency or the like.

[0007]

As described above, according to the configuration shown in FIG. 7, the working process of connecting both ends of the lead wires 4a, 4b, 4c and 4d by crimping, spot welding or soldering, respectively. However, there is a problem that the production efficiency is poor due to the necessity of the above.

Further, according to the structure shown in FIG. 8, the assembling work process becomes complicated, the protruding connecting portion is easily deformed, and it becomes difficult to share parts, and the number of kinds of parts increases. In addition, there is a problem that the manufacturing efficiency is deteriorated due to the deterioration of the efficiency of material removal or the like.

Further, in the case of the configuration shown in FIG.
There is a problem that it becomes difficult to share parts, and the manufacturing efficiency is deteriorated due to an increase in the number of types of parts or a reduction in material collection efficiency.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lamp socket having good manufacturing efficiency of component parts and good workability in assembly.

[0011]

SUMMARY OF THE INVENTION A lamp socket according to the present invention comprises: a socket body having a terminal piece storage portion and contact piece storage portions projecting from both ends of the terminal piece storage portion ; A pair of pin holes respectively formed on the front surface of the contact piece housing and into which a base pin of a fluorescent lamp is inserted ; and the two contact pieces having a longitudinal direction extending from both ends of the terminal piece housing to each pin hole. A contact piece made of a metal plate of the same shape attached to and attached to the storage section ; a terminal opening formed on one side of the terminal piece storage section ; When mounted Ru lead wire having one end portion is introduced from the the terminal opening Rutotomoni other end, such as can be electrically connected in contact with the respective contact pieces are exposed in the opening for the terminal Lead wire connection that is pinched and chain- connected
Those having a; parts and the terminal piece consists of a metal plate provided with.

[0012]

In the lamp socket of the present invention, the base pin of the fluorescent lamp is inserted from each pin hole to make contact with the contact piece to make it conductive, and the lead wire introduced from the terminal opening is connected to each terminal piece. Thereby, the base pin of the fluorescent lamp is connected to the lead wire connected to the lighting device of the lighting fixture or the like via the contact piece and the terminal piece. Further, since a plurality of contact pieces, which are respectively in contact with the base pins of the fluorescent lamp inserted through the respective pin holes and are conductive, are formed of the same shape of the metal plate, the components are shared, and the manufacturing efficiency of the components is increased. Becomes better. Since each contact piece is arranged with the direction from each pin hole toward both ends of the terminal piece housing portion as the longitudinal direction, the pin hole and the terminal opening are connected at a short distance via the contact piece and the terminal piece. In addition, the shape of each contact piece becomes simple, and the efficiency of material removal is improved. The respective contact pieces and the respective terminal pieces are engaged with and fixed to the socket body and are electrically connected to each other at the same time, thereby facilitating the assembling work. In addition, each terminal strip is a lead wire
A lead wire connecting part that holds the
Simply introduce the outgoing wire through the terminal opening, and this outgoing wire will
It is electrically and mechanically connected, facilitating the assembly operation.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a lamp socket according to an embodiment of the present invention. 1 and 2, reference numeral 11 denotes a lamp socket.
Each of the two straight tube-type fluorescent lamps is mounted on the front surface thereof while being attached to the fixture body of a lighting fixture (not shown) and electrically connected to the lighting device of the lighting fixture. Is mechanically supported, and each fluorescent lamp is electrically connected to a lighting device.

Reference numeral 12 denotes a housing made of an insulating material forming a socket body. As shown in FIGS. 1 to 3, the housing 12 has a substantially V-shaped box having an opening 13 on its rear surface. It has a terminal piece storage section 15 having a substantially trapezoidal cross section, and contact piece storage sections 16, 16 which are provided at both left and right end portions of the terminal piece storage section 15 and project upwardly and inclined.

On the front surface of each of the contact piece housings 16, 16, there are formed operating plate mounting holes 21, 21 having substantially the same diameter as the diameter of the base of the fluorescent lamp to be mounted. A pair of operating plates 2 of the same shape made of an insulating material constituting the socket body respectively in the operating plate mounting holes 21
3, 23 are fitted and attached from the rear side.

Each of these operating plates 23 has a structure shown in FIGS.
As shown in FIG. 5, a pair of pin holes 25, 25 for inserting the base pins of the fluorescent lamp, respectively, are formed, and insulating ribs 26 which are located between these pin holes 25, 25 and extend rearward. Is protruding. Further, a flange portion 27 is protruded from an outer peripheral portion of each operation plate 23 in an outer peripheral direction,
The flange portion 27 comes into contact with the rear surface around each of the operation plate mounting holes 21 so as to be able to contact and separate therefrom. Further, a pair of positioning notches 28, 28 are provided at one end of the flange 27.
These cutouts 28, 28 are screwed bosses 31,
31 and the insulating ribs 26 of each operating plate 23
15 are supported so as to be able to advance and retreat in the front-rear direction while being positioned so that the direction toward the substantially central portion of the 15 is the longitudinal direction.

The screw boss 31 formed on the housing 12
In addition to the ones formed inside the contact piece housings 16 and 16, the contact piece housings 16 are also formed substantially at the center of the terminal piece housing 15, and a through hole 31 a is formed in the center of the contact piece housing 15 so as to be inserted in the front-rear direction. I have. A locking step is formed at an intermediate position inside these through holes 31a, and the diameter of the front side (outside) is larger than the diameter of the rear side (inside).

The terminal piece storage section 15 has an opening 33 for a terminal which is opened at the lower side thereof which is attached to the fixture body of the lighting fixture.
A pair of column-shaped main body mounting portions 35, 35 which are long in the front-rear direction are formed at both left and right end portions of the terminal opening portion 33. Then, inside the body mounting portions 35, 35, the lid engaging grooves 36, which are opposed to each other and whose longitudinal direction is the longitudinal direction,
The main body engaging grooves 37, 37 are formed on the outside, each having a longitudinal direction in the front-rear direction.

A center mounting boss 41 is provided at the center of the main body mounting portions 35, 35 so as to project rearward.
The center mounting boss 41 is formed in a substantially H-shaped cross section in which engagement grooves 41a, 41a are formed on both left and right sides.

Also, the terminal piece storage section 15 and each contact piece storage section 1
Upper mounting bosses 43 and 43 are formed at the upper end portions of the boundary portions between the contact piece storage portions 15 and the contact piece storage portions 16 and 16, respectively. , Lower mounting bosses 44, 44 are formed respectively. The upper and lower mounting bosses 43 and 44 are formed with engaging grooves 43a and 44a opposed to each other, and each lower mounting boss 44 is provided with the engaging grooves 41a and 41 of the central mounting boss 41.
Engaging grooves 44b, 44b are formed opposite to a.

Further, the terminal piece storage portion 15 is provided at a position between the center mounting boss 41 and the left and right lower mounting bosses 44, 44, and between the upper mounting bosses 43, 43 and the lower mounting bosses 44, 44, respectively. A pair of left and right insulating walls 46, 46 that are bent in a substantially U shape are formed. In addition, each of these insulating walls 46
From the tip of the contact piece housing 16 side, locking pieces 46a project from the upper and lower mounting bosses 43 and 44, respectively, and both sides of each insulating wall 46 near the locking piece 46a. Locking bosses 47, 47 each having an elliptical cross section are protruded from the portion.

One end is fitted and fixed between the engaging groove 43a of the upper mounting boss 43 and the insulating wall 46 and between the engaging groove 44a of the lower mounting boss 44 and the insulating wall 46. In this state, a pair of contact pieces 51, 51 having the same shape are attached to the respective contact piece storage sections 16.

Each contact piece 51 is formed by bending a metal plate of the same shape in the form of an elongated and substantially rectangular plate which is elastically deformed.
43a, etc., which is fitted and fixed to
Arm extending from one end of 54 and bent in a substantially U-shape
55 and a pin contact portion 56 extending from the distal end of the arm portion 55 and elastically contacting the rear surface of the operation plate 23 so as to cover each pin hole 25 are integrally formed. Further, each arm 55 is formed to have a slightly smaller width dimension than the connecting portion 54 and the pin contact portion 56. Further, the metal plate forming each contact piece 51 is made of a clat material having a two-layer structure, and a surface facing each pin hole 25 side is a copper (Cu) layer surface having good conductivity.

The pair of contact pieces 51, 51 attached to each contact piece storage section 16 are arranged in parallel with each other, and are insulated by the insulating ribs 26 of the operation plate 23 so as not to contact each other. When attached to the body 12, each of the arms 55 is elastically deformed as shown by a two-dot chain line in FIG. 1, and elastically presses the operating plate 23 forward to support it so that it can move forward and backward.

The terminal piece housing 15 has a substantially W-shaped cross section which is electrically connected to the contact pieces 51, 51 mounted on the contact piece housings 16, 16 respectively. A second terminal having a substantially C-shaped cross section which is electrically connected to a contact piece of the first terminal piece 61, 61 and a contact piece 51, 51 attached to the lower side of each contact piece storage portion 16, 16; The pieces 62, 62 are fitted and mounted.

Each of the first terminal strips 61 is formed by bending a substantially rectangular metal plate having the same shape, and is fitted between the engagement groove 43a of the upper mounting boss 43 and the insulating wall 46. A connecting portion 63 that is in close contact with the connecting portion 54 of each contact piece 51 and is electrically connected thereto. The connecting portion 63 extends from an end of the connecting portion 63, is bent along the upper side of each insulating wall 46, and An arm 64 fitted and fixed between the wall 46 and the locking boss 47, and between the engaging groove 41a of the center mounting boss 41 extending from an end of the arm 64 and the insulating wall 46. The lead wire connecting portion 65 fitted and fixed to the connector is integrally formed.

Further, each of the second terminal pieces 62 is formed by bending a substantially rectangular plate-shaped metal plate having the same shape, and is fitted between the engagement groove 44b of the lower mounting boss 44 and the insulating wall 46. A connecting portion 66 that is in close contact with and electrically connected to the connecting portion 54 of each contact piece 51, extends from an end of the connecting portion 66, is bent along the lower side of each insulating wall 46, and An arm portion 67 fitted and fixed between the insulating wall 46 and the locking boss 47; and an engagement groove 44b of the lower mounting boss 44 extending from an end of the arm portion 67 and the insulating wall 46. The lead wire connecting portion 68 fitted and fixed therebetween is integrally formed.

These lead wire connecting portions 65 and 68 are
It constitutes a so-called screwless terminal (lock terminal).
The protruding pieces 72, 72, which are divided into two from the tip side by the cut grooves 71, are folded upward. The tip of each protruding piece 72 is recessed upward, and an outlet of a lighting device (not shown) of a lighting fixture (not shown) inserted through a through hole 72a formed to face each protruding piece 72. A line is sandwiched between the tip of each protruding piece 72 and each of the arms 64 and 67.

In FIGS. 1 and 5, reference numeral 73 denotes a lid integrally formed of an insulating synthetic resin or the like constituting the socket body. The lid 73 is an outer peripheral portion on the rear side of the housing 12. The opening 12 of the housing 12 is closed. A flat rectangular outlet surface portion 74 is formed integrally with a lower portion of the lid 73,
Protrusions 74a, 74 provided on both left and right ends of the outlet surface portion 74
In the state where a is fitted into the lid engaging grooves 36, 36 of the main body mounting portions 35, 35 of the housing 12, the outlet surface portion 74 closes the terminal opening 33 of the housing 12.

The outlet surface 74 has eight outlets opposed to the through holes 72a formed in the outlet connection portions 65, 68 of the first and second terminal pieces 61, 62, respectively. Wire insertion hole 75
Are formed, and a through hole 76 for releasing the lock connection is formed at the side of each lead wire insertion hole 75. Note that each lead wire insertion hole 75 is formed such that the upper (inner) diameter dimension is smaller than the lower (outer) diameter dimension.

Further, a screw receiving boss 77 having a screw hole 77a formed at a position corresponding to each screw boss 31 provided on the housing 12 is projected from the front surface of the lid 73. In addition, locking projections 78 that abut against the inner side surface of the housing 12 to position the lid 73 from a plurality of locations near the outer peripheral portion are provided in a protruding manner.

Further, on the front surface of the lid 73, the connecting portion 54 of the contact piece 51 and the connecting portion 66 of the terminal piece 62, which are fitted in close contact with the engaging groove 44a, and the engaging groove 43a. A ridge 79 is formed which abuts on the connecting portion 54 of the contact piece 51 closely fitted and the connecting portion 63 of the terminal piece 61 to prevent the terminal pieces 61, 62 and the contact piece 51 from falling off. .

The cover 73 is formed by screwing a mounting screw inserted into the through hole 31a of the screw boss 31 of the housing 12 from the front side into the screw hole 77a of the screw receiving boss 77 of the cover 73. Alternatively, it is fixed to the housing 12 by welding an outer peripheral portion or the like.

Next, the assembling operation of the lamp socket 11 of this embodiment will be described.

First, through the opening 13 on the rear side of the housing 12,
The operation plates 23, 23 are respectively dropped into and fitted into the twelve contact piece storage portions 16, 16, and the operation plate mounting holes 21, 21 are closed.

Then, the first and second terminal strips are stored in the terminal strip housing 15 of the housing 12 from the rear opening 13 of the housing 12.
61, 61, 62, 62 are fitted and mounted, and the contact piece storage sections 16, 16
The contact pieces 51, 51, 51, 51 are fitted and mounted on the
61, 61, 62, 62 and the contact pieces 51, 51, 51, 51 are attached to the housing 12 in a state where they are electrically connected to each other.

Next, a lid 73 is attached to the opening 13 on the rear surface side of the semi-assembled member on the side of the housing 12 thus configured, and the left and right ridges 74a, 74a of the outlet surface 74 are attached to the housing 12. The cover 73 is fixed to the housing 12 by being fitted into the cover engagement grooves 36, 36 of the main body mounting portions 35, 35 and screwed or welded.

In the lamp socket 11 of the present embodiment, a plurality of lead wires derived from the lighting device of the lighting fixture are inserted into the lead wire insertion holes 75 of the lid 73 so that these lead wires are formed. The first and second terminal pieces 61, 61, 62,
Locked to 62. In this state, the base pins of the two fluorescent lamps are inserted into the pin holes 25, 25, 25, 25 of the respective operation plates 23, 23, so that the base pins are respectively contact pieces.
51, 51, 51, and 51 are abutted and electrically connected. In this way, the base pins of the two fluorescent lamps can be connected to the lighting device of the lighting fixture via the contact pieces 51 and the terminal pieces 61 and 62.

The two operating plates 23, 23 have the same shape, the four contact pieces 51 have the same shape, and the terminal pieces connected to these contact pieces 51 have the first left and right common shapes. Further, since the second terminal strips 61 and 62 are used, the common use of the components can be promoted, and the manufacturing efficiency of the components can be improved.

Each contact piece 51 is connected to each pin hole 25.
In a state inclined from the direction toward the terminal piece housing 15 as the longitudinal direction, and the contact pieces 51 forming a pair are arranged in parallel with each other, so that the corresponding pin holes 25 having different horizontal positions and different height positions are provided. The lead wire introduced into the terminal opening 33 can be connected with the shortest distance.

Further, since each of the contact pieces 51 and each of the terminal pieces 61 and 62 can be formed by bending a metal plate having a simple shape of a substantially rectangular plate, the efficiency of material removal is improved and the manufacturing cost is reduced. Can be.

Further, each operating plate 23 is dropped into the housing
12, each contact piece 51 and each terminal piece 61, 62 are fitted and fixed to the housing 12 and are electrically connected to each other at the same time, so that components such as lead wires and wires are not used. ,
An operation process for connection by crimping, soldering, spot welding, or the like is not required, so that the assembling operation of the lamp socket 11 can be facilitated, and the lamp socket 11 can be manufactured by an automatic machine, and the manufacturing efficiency can be improved.

An outlet surface formed at the lower portion of the lid 73
Since the protrusions 74a, 74a are formed on both right and left ends of the cover 74, the protrusions 74a, 74a are fitted into the cover engagement grooves 36, 36 of the main body mounting portions 35, 35 of the housing 12, so that the cover 73 can be easily and reliably positioned and attached to the housing 12.

In the lamp socket 11 of this embodiment,
First terminal pieces 61, 61 having a substantially W-shaped cross section are stored in the terminal piece storage portion 15.
And the second terminal pieces 62, 62 having a substantially C-shaped cross section, were fitted and attached. However, the shape of the terminal pieces is not limited to these, and for example, as shown in FIG. First and second terminal pieces 83, which are bent into a substantially U-shaped cross section or a substantially J-shaped cross section from the inner ends of the lead wire connecting portions 81, 82 fitted and fixed facing the terminal opening 33, respectively. 84 can also be used .

[0045]

According to the lamp socket of the present invention, the base pins of the fluorescent lamp are inserted from the respective pin holes to make contact with the contact pieces for electrical connection, and the lead wires introduced into the terminal pieces from the terminal openings. Is connected, the base pin of the fluorescent lamp can be connected to the lead wire connected to the lighting device of the lighting fixture or the like via the contact piece and the terminal piece. Each of the plurality of contact pieces, which are in contact with the base pins of the fluorescent lamp inserted from each of the pin holes and conducts, is made of a metal plate having the same shape, so that the components are shared and the manufacturing efficiency of the components is reduced. Can be good. Since each contact piece is disposed with the direction from each pin hole toward each end of the terminal piece housing portion as the longitudinal direction, the pin hole and the terminal opening can be connected at a short distance via the contact piece and the terminal piece. At the same time, the shape of each contact piece can be made simple, and the efficiency of material removal can be improved. Same time as the contact piece and the terminal piece can be fixed in engagement with the socket body
Can be electrically connected to each other, so that the assembling work can be facilitated. Furthermore, each terminal strip holds the lead wire
Since the lead wire connection part for chain connection is provided,
This lead wire can be electrically and
It can be connected mechanically and the assembly work can be facilitated.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing one embodiment of a lamp socket of the present invention.

FIG. 2 is a front view of the lamp socket.

FIG. 3 is a rear view showing a state where a lid of the lamp socket is removed.

FIG. 4 is a rear view of the operation plate.

FIG. 5 is a front view of the upper cover.

FIG. 6 is a rear view showing a part of a lamp socket according to another embodiment of the present invention with a lid removed.

FIG. 7 is a perspective view showing a conventional lamp socket.

FIG. 8 is a perspective view showing a conventional lamp socket.

FIG. 9 is a rear view showing a conventional lamp socket.

[Explanation of symbols]

11 Lamp socket 12 Housing constituting the socket body 15 Terminal piece storage section 16 Contact piece storage section 23 Operating plate constituting the socket body 25 Pin hole 33 Terminal opening 51 Contact piece 61 First terminal forming the terminal piece Piece 62 Second terminal piece 65, 68 constituting a terminal piece Outgoing wire connection part 73 Lid body constituting a socket body

────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Hideki Koide 733, Ohimachi, Takata-gun, Shizuoka Prefecture Miyoshi Works Co., Ltd. (72) Inventor Nobuaki Inaba 733, Onito-machi Takyo, Takata-gun Shizuoka Prefecture, Miyoshi Works Co., Ltd. (56 References: Japanese Utility Model, Sho 54-90078 (JP, U) Japanese Utility Model, Sho 63-188885 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 33/88 H01R 33/08

Claims (1)

(57) [Claims] A socket body having a terminal piece storage portion and contact piece storage portions projecting from both ends of the terminal piece storage portion ; and a socket body formed on the front surface of each contact piece storage portion of the socket body. A pair of pin holes into which the base pins of the fluorescent lamp are inserted ; and the same fitted and engaged with both contact piece storage sections with the direction from each end of the terminal piece storage section toward each pin hole as the longitudinal direction. made of a metal plate shape contact pieces and, the terminal opening formed in one side of the terminal strip housing part and, said terminal piece accommodating portion when Ru mounted engages with one end each of the contact pieces the lead wires of the lead wires that are capable, such Rutotomoni other end electrically connected is introduced from the terminal opening is exposed in the opening for the terminal is connected clamped to a chain in contact with the
A terminal piece made of a metal plate provided with a connection portion ;