JP2001043946A - Bulb socket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the assembly of contacts incorporated in a bulb socket, cords connected to them and rubber bushings. SOLUTION: In this bulb socket 10 provided with a socket body 11 having a bulb supporting part 12 for supporting a wedge base bulb, and plural contacts 20 incorporated in the socket body and electrically abutted on the electrodes of the wedge base bulb, plural contact insertion cylinders 13 corresponding to the respective contacts for inserting and supporting the contacts 20 in the bulb supporting part 12 are formed on the socket body 11. A cord 51 is connected to each of the contacts 20, and individually independent sealing bushing 61 is integrally assembled with it. When the respective contacts 20 each are inserted into the socket body 11 through the contact insertion cylinder 13, and the contacts 20 are supported in the bulb supporting part 12, the sealing bushings 61 are pressed in the contact insertion cylinder 13 at the same time, and each space between the cord 51 and the contact insertion cylinder is sealed. Assembly manhours are reduced and disconnection of the cords never occurs.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bulb socket used for mounting a bulb serving as a light source of a lamp in a lamp housing, and more particularly to a bulb socket for a wedge base bulb having no base.

[0002]

2. Description of the Related Art In a vehicular lamp, a wedge base bulb having no base is used as a light bulb for a light source. This wedge base bulb is configured such that a part of a bulb section made of glass is used as a base section, and an electrode electrically connected to a filament provided inside the bulb section is arranged on the base section. Therefore, in the wedge base valve, when the base portion is inserted into the valve socket, the electrode extending from the base portion comes into contact with a contact provided on the valve socket to perform electrical connection. FIG. 13 is a perspective view in which a part of an example of a conventional valve socket is cut away. A wedge base valve 30 has a base portion 31 integrated with a valve portion 35 formed in a plate shape. A pair of electrodes 33 electrically connected to the filament 32 extend along the surface. On the other hand, the valve socket 210 is provided with the wedge base valve 30 on its socket body 211.
The base portion 31 is provided with a valve support portion 212 formed in a substantially cylindrical shape into which the base portion 31 can be fitted. The socket body 211 has a cylindrical area opposite to the valve support section 212 in the cylinder axis direction. The cylindrical section is configured as a bush fitting section 213.
A bayonet portion 214 is provided on an outer peripheral surface of a boundary region between the bush fitting portion 213 and the bulb support portion 212 for attaching and detaching the bulb socket 210 to a socket mounting hole provided in a reflector of a lamp. Note that the bayonet portion 214 includes a locking projection 221 and a flange 222, and a seal ring 223 is fitted therein.

[0003] Here, in the valve support portion 212,
A pair of contacts 20 </ b> A formed by processing a metal plate are provided therein, and are electrically connected to the respective electrodes 33 of the wedge base valve 30 fitted in the valve support portion 212. The contact 20A is provided with a valve contact portion 231 formed by bending a tongue-like portion in the thickness direction in order to make electrical connection with the electrode. Also,
The lower end of the contact is configured as a caulking portion 232, and the caulking portion 212
A cord 50 electrically connected to A is caulked and fixed. Cord 5 connected to each contact 20A
0 is press-fitted into a cord insertion hole 241 provided in the cylindrical bush 240. The bush 240
Is formed of rubber or a flexible resin, and can be fitted into the bush fitting portion 213.

In order to assemble the valve socket 210 having such a configuration, first, the conductive wires of the two cords 50 are caulked and fixed to the contact 20A, the insulating portion is caulked and fixed at the caulking portion 232, and the cord 50 is further fixed. The bush 240 is inserted through the cord insertion hole 241. Next, each of the contacts 20A is moved from the side of the bush fitting portion 213 of the socket body 211 to the valve support portion 2.
12 and locked inside. Then
The bush 240 is fitted into the bush fitting portion 213, and the bush 240 is inserted between the bush fitting portion 213 and the cord 50.
Seal with 0. Further, after the bush 240 is fitted, each cord 50 is pulled lightly outward to eliminate the slack of the cord 50 in the bush fitting portion 213.

[0005]

In such a conventional valve socket, it is necessary to eliminate the slack of the cord 50, especially after the contact 20A is inserted into the socket body 211. It is necessary to perform each of the cords 50 of the book, and when the cord 50 is pulled too strongly, the caulked portion 23 with the contact 20A is formed.
The connection at 2 may be disconnected or the wire may be broken at the swaged portion. Alternatively, the contact 20A may come off the socket body 211. For this reason, there is a problem that careful attention must be paid in this step, and that skill is required for assembly. Although the description is omitted, the wedge base valve includes a valve having two filaments embedded therein. In this valve, since four electrodes are provided on the base portion, four contacts are also provided on the valve socket. Is done. Of these, the two contacts are used for ground (minus) and can be shared, but still require at least three contacts and three cords, and assemble these three contacts in the manner described above for the socket body. Therefore, the above-mentioned problem becomes more prominent.

An object of the present invention is to provide a valve socket which reduces the number of assembling operations and facilitates assembling operations.

[0007]

SUMMARY OF THE INVENTION The present invention is directed to a socket body having a valve support for supporting a wedge base valve, and a plurality of contacts housed within the socket body and electrically contacting electrodes of the wedge base valve. In the valve socket, the socket body is provided with a plurality of contact insertion cylinders corresponding to the contacts for inserting and supporting the contacts in the valve support portion, and a cord is connected to the contacts. An independent sealing bush is integrally assembled with each contact, and the sealing bush is inserted into the contact insertion tube while the contact is supported in the valve support portion through the contact insertion tube. It is characterized by being press-fitted. Here, two or more contacts are provided, and at least two contacts are formed in the same shape.

In the present invention, if a plurality of contacts are inserted into the corresponding contact insertion cylinders and further inserted into and supported by the valve support portion in the socket body,
At the same time, the sealing bush integrated with the contact is pressed into the contact insertion tube to seal the contact insertion tube. Therefore, the operation of inserting the contact and the operation of press-fitting the sealing bush can be performed in a single operation, and the number of assembling operations of the valve socket can be reduced. Further, it is not necessary to perform a work for loosening the cord at the time of assembling, and it is possible to prevent a disconnection between the cord and the contact beforehand.

[0009]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an embodiment of the present invention,
FIG. 2 is a partially exploded perspective view seen from the rear surface direction. FIG. 3 is a plan view of the valve socket, and FIG.
It is a line sectional view. The valve socket 10 has a socket main body 11 formed by resin molding and having a substantially cylindrical shape, and a front end on the upper side in the figure of the socket main body 11 is configured as a square cylindrical valve support portion 12. The lower rear end of the drawing is formed as a contact insertion tube 13. Further, the socket body 11 in the boundary region between the bulb support portion 12 and the contact insertion tube 13 is formed in a cylindrical shape, and is configured as a bayonet portion 14 for mounting the bulb socket 10 on the lamp side. In the socket body 11, a plurality of, in this case, two contacts 20 formed by processing metal pieces such as a copper plate in a region extending from the valve support portion 12 to the contact insertion tube 13 are supported inside the socket body 11. Have been. The contact 20 is, as will be described later in detail, the valve support 12.
It has a valve contact 21 located inside. In addition,
The wedge base valve 30 fitted into the valve socket 10 is the same as the conventional one, and a base part 31 formed integrally with the valve part 35 is electrically connected to a filament 32 provided inside the valve part 35. The paired electrodes 33 are arranged along both side surfaces of the base portion 31.
Also, on both sides of the base portion 31, a wedge-shaped convex portion 34 is provided substantially at the center position, which is the same as before.

The socket body 11 is detachable by the bayonet portion 14 from a circular socket mounting hole 41 provided on the back surface of the reflector 40. The bayonet portion 14 is connected to the socket body 1.
1 is formed in a cylindrical shape, and a plurality of locking projections 111 project radially from a circumferential surface thereof. These locking projections 111 have one end in the circumferential direction. Each of the locking projections 111 is formed in a tapered shape and corresponds to a locking groove 42 circumferentially arranged on the periphery of the socket mounting hole 41 of the reflector 40, so that each locking projection 111 can pass through each locking groove 42. It is configured. Further, a disc-shaped flange 112 is integrally formed on the circumferential surface at a small interval in the cylinder axis direction with each of the locking projections 111, that is, at an interval substantially equal to the thickness of the reflector 40. I have. In addition, the valve socket 10 is provided on the front surface of the flange 112.
A seal ring 113 for sealing the space between the reflector and the rear surface of the reflector 40 is fitted.

The valve support portion 12 is formed in a rectangular tube shape having a substantially flat rectangular opening shape corresponding to the shape of the base portion 31 of the wedge base valve 30.
In the front end opening 101, the wedge base valve 3 is provided.
0 of the base portion 31 can be fitted. In the front end opening 101 of the valve support portion 12, as shown in FIG. 4, in order to internally support the contact 20, each opposed surface of the inner surface of each long side, in other words, of the wedge base valve 30, At a position corresponding to the pair of electrodes 33, a contact support groove 102 in which an inner side surface of the opening 101 is recessed in the axial direction is formed. Further, a contact insertion groove 103 is opened from the valve support portion 12 toward the contact insertion tube 13 so as to communicate with the contact support groove 102. Note that the contact support groove 102 is terminated at a position on the front end side of the opening 101, and a contact portion 104 to which the tip of the contact 20 contacts is provided. Further, a step portion 105 for locking the contact 20 is formed on the inner surface of the boundary between the contact support groove 102 and the contact insertion groove 103.

In the front end opening 101, a position substantially at the center in the long side direction and at a position facing the short side direction is provided.
Each of the base portions 31 of the wedge base valve 30
A locking piece 121 for engaging the wedge-shaped convex portion 34 provided on the wedge base valve 30 to prevent the wedge base valve 30 from falling off is integrally formed. These locking pieces 121 project from the inside of the valve support 12 toward the front end,
Further, a hook type is formed on each of the opposing surfaces at the distal end. Therefore, the locking piece 121 is connected to the front end opening 101.
The wedge base valve 30 is configured such that an elastic force that can be tilted in the short side direction is applied to the inside and each of the distal ends engages with each wedge-shaped convex portion 34 of the base portion 31 of the wedge base valve 30. Further, a pair of slits 122 are cut from the opening edge at both ends in the long side direction of the front end opening 101, that is, each short side, and a tongue-shaped resilient piece 123 is provided between the slits 122. Are formed. Each of the resilient pieces 123 is formed such that the inner surface of the distal end thereof is formed in a convex shape, and these distal ends abut against both end surfaces of the base 31 of the wedge base valve 30 inserted into the front end opening 101. This absorbs backlash in the longitudinal direction of the base portion 31 in the front end opening 101.

As shown in FIG. 2, the contact insertion cylinder 13 is formed as two independent small-diameter cylinders projecting from the rear end face of the bayonet portion 14 in the cylinder axis direction. It is communicated with a contact insertion groove 103 provided in the opening 101 of the portion 12. A rubber bush 61 into which a cord 51 connected to the contact 20 is inserted can be pressed into the contact insertion tube 13 as described later. A pair of wing-shaped operation pieces 16 are integrally provided at the rear end surface of the socket body 11 where the contact insertion tube 13 is formed, at a diameter position.
When the socket body 1 is attached to and detached from the reflector 40,
It is used when rotating 1 around the axis.

The contacts 20 have exactly the same shape for plus and minus as shown in FIG. 2 before and after pre-assembly, respectively.
One contact is formed by bending a metal piece, and the front end region thereof is configured as a valve contact portion 21 of the valve support portion 12, and the intermediate region following this is formed as a cord connection portion 22, and the rear portion is further formed. The region on the end side is configured as a caulked portion 23. The valve contact part 21
Is bent in a tapered shape along the longitudinal direction, and can be brought into contact with the electrode 33 of the wedge base valve 30 at its distal end surface by its own elastic force. Also,
Both side edges of the cord connection portion 22 are formed somewhat wide,
The rigidity is enhanced by forming the both side edges 24 obliquely in the thickness direction. Further, a tongue-shaped locking piece 25 cut and raised toward the rear end protrudes from a part of the central region of the cord connection portion 22. on the other hand,
The caulking portion 23 is formed with two pairs of caulking pieces 23a and 23b in parallel, and each end is formed so as to be rounded in the plate thickness direction, so that the caulking piece 23a is formed by the cord 51 and the rubber bush. A part of 61 is fixed by caulking, and the caulking piece 23b is caulked to connect the lead wire of the cord 51.

The cord 51 is provided with the rubber bush 61.
Are fitted in the inserted state. The rubber bush 61
Is composed of a circular annular portion 62 having a diameter dimension capable of being press-fitted into the contact insertion tube 13 and a small-diameter and thin-walled sleeve portion 63 protruding in the axial direction from the annular portion 62. The cord 51 is closely inserted into a cord insertion hole 64 provided through the inside of the sleeve 62 and the sleeve 63. The outer peripheral surface of the annular portion 62 has a wavy axial cross section, so that when the annular portion 62 is pressed into the contact insertion tube 13, the outer peripheral surface of the annular portion 62 contacts the outer peripheral surface of the annular portion 62. Insertion cylinder 1
3 is improved. The sleeve portion 63 extends to the caulking portion 23 of the contact 20 and is caulked and fixed to the contact 20 together with the cord 51.

At the time of assembling the valve socket 10 having the above configuration, as shown in FIG. 2, the end of the lead wire of the cord 51 is connected to the contact 20 by caulking with a caulking piece 23b, and the rubber bush 61 is fitted to the cord 51. And the cord 5 together with the sleeve 63 of the rubber bush 61
1 is caulked and fixed by caulking pieces 13a. Then, the contact 20 is connected to the opening side of the contact insertion tube 13,
That is, the socket body 10 is inserted from the rear end side. The inserted contact 20 is inserted along the contact insertion groove 103 in the socket body 11 into the contact support groove 102 in the valve support portion 12 as shown in FIG.
Further, by inserting the contact 20, the rubber bush 61 is pressed into the contact insertion tube 13. Then, at the insertion position where the rubber bush 61 is pressed into such a state, the contact 20
Of the valve contact portion 21 is brought into contact with the contact portion 104 at the front end of the contact support groove 102, and the subsequent insertion of the contact 20 is stopped. In the stop position of the contact 20, the locking piece 25 of the contact 20 engages with the step portion 105 of the contact insertion groove 103,
As a result, the contact 20 is locked in the valve support portion 12.

In the valve socket 10 assembled as described above, when the base portion 31 of the wedge base valve 30 is fitted into the valve support portion 12 of the socket body 11,
As in the case of the conventional valve socket, the valve contact portions 21 of the contacts 20 provided inside the socket main body 11 are brought into contact with the electrodes 33 provided on the base portion 31, respectively, and electrical connection is made. At the same time,
Socket body 11 provided in front end opening 101
The distal end of the engagement piece 121 integrated with the base portion 31 is engaged with the wedge-shaped convex portions 34 on both side surfaces of the base portion 31, thereby preventing the base portion 31 from dropping out of the valve support portion 12. Further, since the resilient pieces 123 provided on each short side of the front end opening 101 are in contact with both end surfaces of the base portion 31, the base portion 31 is held at both ends in the longitudinal direction. As a result, backlash of the base portion 31, that is, the wedge base valve 30 in the valve support portion 12 is prevented, and the valve is supported in a stable state.

Therefore, in this valve socket 10, the contact 20 in which the cord 51 and the rubber bush 61 are assembled in advance is inserted from the contact insertion tube 13 side, and the rubber bush 61 is inserted into the contact insertion tube 13.
, The contact 20 can be inserted and supported in the valve support portion 12 of the socket body 11, and at the same time, the rubber bush 61 seals between the contact support tube 13 and the cord 51. As a result, the work of assembling the valve socket 10 is completed only by the work of inserting the two contacts 20 into the contact insertion tube 13 respectively. At this time, the work of pulling the cord 51 to loosen the cord 51 Is unnecessary, the number of work steps can be reduced, and the cords do not come off the contacts, so that the assembling work can be simplified. Furthermore, in this embodiment, since the two contacts 20 can have exactly the same shape, the contacts can be shared by the plus and minus contacts,
The manufacture of the contacts and the management of parts are easy, and there is no need to distinguish the two at the time of assembling, so that the assembling work is further facilitated.

FIG. 5 shows a second embodiment in which the present invention is applied to a valve socket 10A to which a two-filament wedge base valve in which two pairs of electrodes are arranged on a base portion is applied. 6 is an exploded perspective view seen from the rear surface direction, FIG. 7 is a plan view thereof, and FIG. 8 is a sectional view taken along the line BB of FIG. Note that parts equivalent to those in the first embodiment are denoted by the same reference numerals. In the second embodiment, in a two-filament wedge base valve 30A, two pairs of electrodes 33, a total of four electrodes, are arranged on the base portion 31. In addition, among these electrodes, the base 3
The two electrodes 30a at positions opposite to the base portion on one side are each configured as a negative electrode, and when supported by the valve socket 10A, both electrodes 30a are electrically connected by one contact 70 described later. The electrical connection will be made in this state. In addition, other two positions opposite to each other on the other side of the base portion 31.
Each of the electrodes 30b is configured as a positive electrode.

In the second embodiment, the shape of the opening of the valve support portion 12 of the socket body 11 of the valve socket 10A is substantially the same as that of the valve socket of the first embodiment. As shown in FIG. 8, a contact insertion groove provided in the opening 11 has one U-shaped common contact insertion groove 106 having a U-shaped planar shape at one side of the opening 101, and an opening 10 as shown in FIG.
The difference is that two positive contact insertion grooves 103 having the same configuration as that of the contact insertion groove 103 of the first embodiment are arranged opposite to each other on the other side portion in FIG. As shown in FIG. 6, the rear end face of the socket body 11 is provided with two positive contact insertion cylinders 13 similar to those of the first embodiment together with a somewhat larger diameter than these, as shown in FIG. , Is formed. The negative common contact insertion tube 15 communicates with the U-shaped negative common contact insertion groove 106, while the two positive contact insertion tubes 13 communicate with the two positive contact insertion grooves 103. Have been. The resilient piece 123 is not provided on a wall of the opening 101 along the one side.

The contacts internally supported by the valve socket 10A are composed of three contacts, but the two positive contacts 20 have the same configuration as each contact of the first embodiment. The other one of the contacts 70 is inserted as a minus common contact into the U-shaped minus common contact insertion groove 106 in the socket body 11, as shown in FIG.
Valve contact part 7 formed by bending a metal piece into a U-shape in the width direction
1 and a cord connecting portion 72 and a caulking portion 73 following the cord connecting portion 72. The caulking portion 73 is the same as the caulking portion 23 of the two plus contacts 20, and is composed of two pairs of caulking pieces 73a and 73b. On the other hand, in the valve contact portion 71, the U-shaped two-sided pieces, that is, the oppositely disposed two-sided pieces 74 are formed substantially symmetrically. The valve contact piece 75 is formed by bending so as to protrude inward. Also, the central piece 76 sandwiched between the side pieces 74 has a position near the front end,
A protruding portion 77 is formed with a part thereof protruding inward, and a locking piece 78 partially protruded outward is provided at a position closer to the rear end than the protruding portion 77. Is formed.

Each of the contacts 20 and 70 has a code 5 similar to the contact of the first embodiment.
The caulking portions 1 and 52 are caulked and connected by the caulking portions for connection, and are caulked and fixed at the caulking portions together with the sleeve portions 63 and 83 of the rubber bushes 61 and 81 inserted through the cords 51 and 52. Here, the rubber bush 81 provided on the minus common contact 70
The annular portion 82 is formed to have a large diameter and a long shaft length in accordance with the minus common contact insertion tube 15;
A cord insertion hole 84 is provided inside the annular portion 82 and the sleeve portion 83.

At the time of assembling the valve socket 10A, as shown in FIG. 6, the cords 51 and 52 are caulked and connected to the contacts 20 and 70 by caulking pieces 23b and 73b, and the cords 51 and 52 are connected to rubber bushes 61 and 8 as shown in FIG.
After the cords 51 and 52 are inserted through the cord insertion holes 64 and 84, the cords 51 and 52 are fixed together with the sleeves 53 and 83 by the caulking pieces 23a and 73a of the contacts 20 and 70. Then, the contacts 20, 70 are inserted from the opening sides of the contact insertion tubes 13, 15, respectively. At this time, the two plus contacts 20 are respectively inserted into the plus contact insertion tube 13 by the minus common contact 70.
Needless to say, is inserted into the minus common contact insertion tube 15. The contacts 20 and 70 inserted into the contact insertion tubes 13 and 15 respectively correspond to the contact insertion grooves 103 and 106 in the socket body 11.
Along the valve support 12. In addition,
By inserting the contacts 20, 70, the rubber bushes 61, 81 are press-fitted into the contact insertion tubes 13, 15, and seal between the cords 51, 52. And
These rubber bushes 61 and 81 are used for each contact insertion tube 1.
In the insertion position in which the contact 20 is pressed into the contact portions 3 and 15, the distal end of the contact 20 is
4, and the engaging piece 25 provided on the contact 20 engages with the step portion 105 of the contact support groove 103 and is locked. Similarly, in the negative common contact 70, as shown in FIG. 8, the bent portion 79 of the valve contact portion 71 of the negative common contact 70 abuts on the bottom wall 11 a in the socket main body 11 and the negative common contact support groove 106. The engagement within the valve support portion 12 is performed by engaging the engagement piece 78 of the contact 70 with the provided step portion 107.

According to the valve socket 10A having the above structure, when the base 31 of the two-filament wedge base valve 30A is fitted into the valve support 12 of the socket body 11, the positive electrode provided on the base 31 is provided. The valve contact portions 21 of the contacts 20 provided inside the socket body 11 are brought into contact with 33b, respectively, and electrical connection is made. Further, the negative electrode 33a is fitted with a negative common contact 70 so as to cover one end of the base portion 31 of the wedge base valve 30A from the side, and a valve contact piece 75 disposed opposite to the negative common contact 70 is provided. Each contacts negative electrode 33a. At this time, the distal end of the engaging piece 121 integrated with the socket body 11 provided in the front end opening 101 is engaged with the wedge-shaped convex portions 34 on both side surfaces of the base 31, and the base 31 Is prevented from dropping out of the valve support portion 12. Further, the resilient piece 123 provided on one short side of the front end opening 101 is connected to the base 31.
And the other end surface of the base portion 31 is brought into contact with a projection 77 provided on a central piece 76 of the minus common contact 70, and these resilient pieces 1
The base portion 31 is sandwiched between both ends in the longitudinal direction by the projection 23 and the projection portion 77, and thereby, the backlash of the base portion 31, that is, the wedge base valve 30A in the valve support portion 12 is prevented. .

In the valve socket according to the second embodiment, as in the first embodiment, the contact insertion cylinders 13 and
The cords 51 and 52 and the rubber bush 6
When the contacts 20, 70 in which the first and the first 81 are assembled are inserted, and the rubber bushes 61 and 81 are pressed into the contact insertion tubes 13 and 15, the respective contacts 20 and 70 are inserted into the valve support portion 12 of the socket body 11. At the same time as being able to be inserted and supported, sealing between the contact insertion tubes 13 and 15 and the cords 51 and 52 is performed by the rubber bushes 61 and 81. Thereby, three contacts 2
The work of assembling the valve socket is completed only by inserting the 0, 70 into the contact insertion cylinders 13, 15, and at this time, the work of pulling the cord to remove the slack of the cord is unnecessary. The number of work steps can be reduced, and the assembly work can be simplified without the cords coming off the contacts.

In the second embodiment, two positive contacts 20 of the three contacts can be formed in the same shape, and the valve of the wedge base valve 30 having one filament of the first embodiment. It is also possible to use the same contact as the plus contact 20 used for the socket 10. Thereby, the valve socket 10 of the two-filament wedge-based valve is
The contact A can also be used as the contact of the valve socket 10 of the one-filament wedge base valve, which is advantageous in reducing the number of parts of the contact when manufacturing these two types of valve sockets, and The assembly work can also be simplified.

FIG. 9 shows a third embodiment of the present invention. As in the second embodiment, a valve socket 10B to which a two-filament wedge base valve in which two pairs of electrodes are arranged is applied. FIG. 3 is an exploded perspective view of a part applied to the apparatus. FIG. 10 is an exploded perspective view seen from the rear surface direction, FIG. 11 is a partially cutaway plan view, and FIG. 12 is a cross-sectional view taken along line CC of FIG. In this third embodiment,
The negative common contact 90 is inserted from the opening 101 side of the valve support portion 12 of the socket body 11 and is fixedly supported in the socket body 11. Further, the two positive contacts 20 are connected to the socket body 1 similarly to the second embodiment.
1 is inserted from the rear end side. Further, a negative connection contact 2 having the same structure as the positive contact 20 is used.
0B is inserted from the rear end face side of the socket main body 11. That is, as shown in FIG. 10, two positive contact insertion cylinders 13 similar to those of the first embodiment and a minus connection contact insertion cylinder 13B having the same configuration are formed on the rear end face of the socket body 11. Have been. And, in each contact insertion tube 13,
The same positive contact 20 as in the first and second embodiments is inserted, and the negative connection contact 20B is inserted into the negative connection contact insertion tube 13B. In this inserted state, each of the contacts 20 and 20B is connected to the valve support portion 12 of the socket body 11.
And each of the contact insertion tubes 13, 13
The rubber bush 61 is press-fitted into B, and the cord 51 is pulled out.

Here, the minus common contact 90
Is inserted into a U-shaped negative common contact insertion groove (not shown) provided in the socket body 11, and as shown in FIG. 9, the metal piece is formed into a U-shape in the width direction. The valve contact piece 91 is formed by bending and forming both sides thereof in the shape of a tongue piece upward, and bent so as to protrude inward facing each other. The central piece 92 sandwiched between the valve contact pieces 91 on both sides has a locking piece 93 formed by cutting a part of the central piece 92 outward.

The negative common contact 90
Is inserted into the opening 101 from the front end of the socket body 11, and is fixedly supported in the socket body 11 by the locking pieces 93. Thereby, the negative common contact 90
Each of the valve contact pieces 91 is opposed to each other in the socket body 11. On the other hand, the two positive contacts 20 are inserted into the socket main body 11 from the respective positive contact insertion cylinders 13 on the rear end side of the socket main body 11, and the openings 10 are formed.
1. This is the same as in the second embodiment. Similarly, the negative connection contact 20B is inserted into the socket main body 11 from the negative connection contact insertion tube 13B on the rear end side of the socket main body 11, and the contact portion 21 of the inserted negative connection contact 20B is also inserted. As shown in FIG. 11 and FIG. 12, the back surface of one valve contact piece 81 of the minus common contact 90 fixed and supported in the opening 101 of the socket body 11 is electrically connected to each other. As a result, the negative common contact 90 is electrically connected to the cord 51 pulled out from the socket body 11 via the negative connection contact 20B.

The valve socket 10 of the third embodiment
According to B, the valve support 12 of the socket body 11
When the base portion 31 of the filament type wedge base valve 30A is fitted, the valve contact portions 21 of the plus contacts 20 provided in the socket body 11 with respect to the plus electrode 33b provided on the base portion 31 respectively. The contact is made and the electrical connection is made. Further, each of the Balf contact pieces 91 of the negative common contact 90 comes into contact with the negative electrode 33a of the wedge base valve 30A. Further, since the negative electrode 33a is electrically connected to the negative connection contact 20B which is in contact with the negative common contact 90, the negative electrode 33a is eventually electrically connected to the cord 51 via the negative common contact 90 and the negative connection contact 20B. Become.

As described above, in the valve socket according to the third embodiment, if the minus common contact 90 is inserted into the socket body 11 first, the first and second contacts are thereafter used.
Similarly to the embodiment, the contacts 20, 20B in which the cords 51, 51 and the rubber bushes 61, 61 are assembled are inserted from the contact insertion tubes 13, 13B side, and the rubber bushes 61, 61 are connected to the contact insertion tubes 13. , 1
3B, the contacts 20, 20B can be inserted and supported in the valve support portion 12 of the socket body 11, and at the same time, the rubber bushes 61, 61 allow the contact insertion cylinders 13, 13B and the cords 51, 51 to contact each other. Sealing is performed between them. Thereby, three contacts 20,
The assembly work of the valve socket is completed only by inserting the 20B into the contact insertion cylinders 13 and 13B. At this time, the work of pulling the cord to remove the slack of the cord is unnecessary, and the number of working steps is reduced. Can be reduced, and the assembly work can be simplified without the cords coming off the contacts.

Further, in the third embodiment, all three contacts 20, 20B are the same as the plus contact 20 used in the valve socket 10 of the wedge base valve 30 having one filament of the first embodiment. It is composed of This is advantageous in reducing the number of parts of the contact, and also simplifies the assembling work. In particular, in the third embodiment, there is no need to form a contact insertion tube or a rubber bush having different diameters as in the second embodiment, and thus there is an advantage that the manufacture of the valve socket can be made easier. .

[0033]

As described above, according to the present invention, a plurality of contacts inserted and supported in the valve support portion of the socket body are integrally assembled with independent sealing bushes, and each contact is passed through the contact insertion tube. In the state supported in the valve support portion, since the sealing bush integrally assembled with the contact is configured to be press-fitted in a state of sealing the inside of the contact insertion tube,
Insert a plurality of contacts into the corresponding contact insertion cylinders, and further insert them into the valve support section in the socket body to support them. At the same time, the sealing bush that is integrated with the contacts It is pressed into the insertion tube to seal the contact insertion tube. Therefore, the operation of inserting the contact and the operation of press-fitting the sealing bush can be performed in a single operation, and the number of assembling operations of the valve socket can be reduced. Further, it is not necessary to perform a work for loosening the cord at the time of assembling, and it is possible to prevent a disconnection between the cord and the contact beforehand.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of a valve socket of the present invention.

FIG. 2 is a partially exploded perspective view of the valve socket according to the first embodiment as viewed from a rear surface side.

FIG. 3 is a plan view of the valve socket of the first embodiment.

FIG. 4 is a sectional view taken along line AA in FIG.

FIG. 5 is a perspective view of a second embodiment of the valve socket of the present invention.

FIG. 6 is a partially exploded perspective view of a valve socket according to a second embodiment as viewed from a rear surface side.

FIG. 7 is a plan view of a valve socket according to a second embodiment.

FIG. 8 is a sectional view taken along the line BB of FIG. 7;

FIG. 9 is a perspective view of a third embodiment of the valve socket of the present invention.

FIG. 10 is a partially exploded perspective view of a valve socket according to a third embodiment as viewed from the rear side.

FIG. 11 is a plan view in which a part of a valve socket according to a third embodiment is cut away.

FIG. 12 is a sectional view taken along the line CC in FIG. 11;

FIG. 13 is a perspective view in which a part of an example of a conventional valve socket is broken and disassembled.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Valve socket (for 1 filament wedge base valve) 10A, 10B Valve socket (for 2 filament wedge base valve) 11 Socket body 12 Valve support part 13, 15 Contact insertion cylinder 14 Bayonet part 20 Positive contact 20B Negative contact 21 Valve contact part 23 Caulking part 25 Locking piece 30 Wedge base valve 31 Base part 33, 33a, 33b Electrode 40 Reflector 41 Socket mounting hole 42 Locking groove 51, 52 Cord 61, 81 Rubber bush 70, 90 Negative common contact 71 Valve Contact portion 73 Caulking portion 75 Valve contact piece 78 Locking piece 101 Opening 121 Locking piece 123 Resilient pressure piece 102 Contact support groove 103, 106 Contact insertion groove

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[Procedure amendment]

[Submission date] June 2, 2000 (2006.2)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction contents]

At the time of assembling the valve socket 10 having the above configuration, as shown in FIG. 2, the end of the lead wire of the cord 51 is connected to the contact 20 by caulking with a caulking piece 23b, and the rubber bush 61 is fitted to the cord 51. And the cord 5 together with the sleeve 63 of the rubber bush 61
1 is swaged and fixed by swaging pieces 23a . Then, the contact 20 is connected to the opening side of the contact insertion tube 13,
That is, the socket body 10 is inserted from the rear end side. The inserted contact 20 is inserted along the contact insertion groove 103 in the socket body 11 into the contact support groove 102 in the valve support portion 12 as shown in FIG.
Further, by inserting the contact 20, the rubber bush 61 is pressed into the contact insertion tube 13. Then, at the insertion position where the rubber bush 61 is pressed into such a state, the contact 20
Of the valve contact portion 21 is brought into contact with the contact portion 104 at the front end of the contact support groove 102, and the subsequent insertion of the contact 20 is stopped. In the stop position of the contact 20, the locking piece 25 of the contact 20 engages with the step portion 105 of the contact insertion groove 103,
As a result, the contact 20 is locked in the valve support portion 12.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0019

[Correction method] Change

[Correction contents]

FIG. 5 shows a second embodiment in which the present invention is applied to a valve socket 10A to which a two-filament wedge base valve in which two pairs of electrodes are arranged on a base portion is applied. 6 is an exploded perspective view seen from the rear surface direction, FIG. 7 is a plan view thereof, and FIG. 8 is a sectional view taken along the line BB of FIG. Note that parts equivalent to those in the first embodiment are denoted by the same reference numerals. In the second embodiment, in a two-filament wedge base valve 30A, two pairs of electrodes 33, a total of four electrodes, are arranged on the base portion 31. In addition, among these electrodes, the base 3
The two electrodes 33a at positions opposite to each other on one side of the base 1 are configured as negative electrodes, and when supported by the valve socket 10A, both electrodes 33a are formed.
33a is electrically connected in a state of being electrically conducted by one contact 70 described later. In addition, other two positions opposite to each other on the other side of the base portion 31.
Each of the three electrodes 33b is configured as a positive electrode.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0022

[Correction method] Change

[Correction contents]

Each of the contacts 20 and 70 has a code 5 similar to the contact of the first embodiment.
The caulking portions 1 and 52 are caulked by the caulking portions 23 and 73 , and are caulked and fixed together with the sleeve portions 63 and 83 of the rubber bushes 61 and 81 inserted through the cords 51 and 52. Here, the rubber bush 81 provided on the minus common contact 70
The annular portion 82 is formed to have a large diameter and a long shaft length in accordance with the minus common contact insertion tube 15;
A cord insertion hole 84 is provided inside the annular portion 82 and the sleeve portion 83. ────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission Date] June 27, 2000 (2006.2
7)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0003

[Correction method] Change

[Correction contents]

[0003] Here, in the valve support portion 212,
A pair of contacts 20 </ b> A formed by processing a metal plate are provided therein, and are electrically connected to the respective electrodes 33 of the wedge base valve 30 fitted in the valve support portion 212. The contact 20A is provided with a valve contact portion 231 formed by bending a tongue-like portion in the thickness direction in order to make electrical connection with the electrode. Also,
The lower end of the contact is configured as a caulking portion 232 , and the caulking portion 232 is provided with the contact 20.
A cord 50 electrically connected to A is caulked and fixed. Cord 5 connected to each contact 20A
0 is press-fitted into a cord insertion hole 241 provided in the cylindrical bush 240. The bush 240
Is formed of rubber or a flexible resin, and can be fitted into the bush fitting portion 213.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0029

[Correction method] Change

[Correction contents]

The negative common contact 90
Is inserted into the opening 101 from the front end of the socket body 11, and is fixedly supported in the socket body 11 by the locking pieces 93. Thereby, the negative common contact 90
Each of the valve contact pieces 91 is opposed to each other in the socket body 11. On the other hand, the two positive contacts 20 are inserted into the socket main body 11 from the respective positive contact insertion cylinders 13 on the rear end side of the socket main body 11, and the openings 10 are formed.
1. This is the same as in the second embodiment. Similarly, the negative connection contact 20B is inserted into the socket main body 11 from the negative connection contact insertion tube 13B on the rear end side of the socket main body 11, and the contact portion 21 of the inserted negative connection contact 20B is also inserted. As shown in FIG. 11 and FIG. 12, the back contact of one of the valve contact pieces 91 of the minus common contact 90 fixed and supported in the opening 101 of the socket body 11 is electrically connected to each other. As a result, the negative common contact 90 is electrically connected to the cord 51 pulled out from the socket body 11 via the negative connection contact 20B.

 ──────────────────────────────────────────────────続 き Continued on front page F term (reference) 3K013 AA06 BA01 CA02 CA07 DA09 EA09 5E024 BC04 BC09 5E087 EE04 EE07 EE12 FF06 FF13 FF19 GG17 HH01 HH04 LL03 LL12 MM08 MM11 QQ04 QQ05 RR11 RR13 RR25 RR25

Claims (2)

[Claims] 1. A valve socket comprising: a socket main body having a valve support portion for supporting a wedge base valve; and a plurality of contacts housed in the socket main body and electrically connected to electrodes of the wedge base valve. A plurality of contact insertion cylinders corresponding to the respective contacts for inserting and supporting the respective contacts in the valve support portion are provided in the socket body, and a cord is connected to each of the contacts, and an independent sealing is provided. A valve, wherein the sealing bush is press-fitted into the contact insertion tube while the respective contacts are supported in the valve support portion through the contact insertion tube. socket. 2. The valve socket according to claim 1, wherein two or more contacts are provided, and at least two contacts have the same shape.