JP2525884Y2 - Wedge base valve socket - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a socket for a wedge base valve used for a vehicle lamp or the like.

[0002]

2. Description of the Related Art Sockets for wedge-based valves are:
Just by inserting the valve base portion of the wedge base valve without the base into the valve insertion hole of the socket body, the lead wire of the valve is connected to a terminal called `` contact '' incorporated in the socket body, and at the same time, the valve is It is configured to hold so as not to drop.

That is, as shown in FIG. 9, in a conventional wedge-based valve socket, a valve base 53 of a wedge-based valve (hereinafter, simply referred to as “valve”) 52 is inserted into a housing 51 of a socket body 50. And a pair of metal elastic contacts 5 each having a lead wire 55 connected to the rear end thereof.
6 and 56 are mounted in the valve mounting holes 54, and the valve base 53 of the wedge base valve 52 inserted in the valve mounting holes 54 is connected to the contacts 56 and 5.
6 is configured to be elastically sandwiched between valve pressing portions 57, 57 formed in a tip-back bent shape, and to be electrically connected to the lead wire 55 of the valve 52.

[0004]

However, in the structure of the wedge base socket, the contact 56 must be inserted and mounted in the valve mounting hole 54 from the rear end side. In order to mount the valve holding portion 54 without looseness, the bent end portion of the valve holding portion 57 must be configured so as not to protrude outside the base level BL. For this reason, a gap G1 is formed between the front end of the valve mounting hole 54 and the valve pressing portion 57, and when the valve 52 is mounted, the gap G1 shown in FIG.
As shown in (a), the gap G
1, which causes a problem such as deformation of the contact 56 due to “twisting”.

However, if the tip of the valve holding portion 57 is bent so as to protrude outside the base level BL to prevent the above-mentioned twisting, the valve mounting hole 54 is expanded as shown in FIG. Have to retreat,
Gap G2 between the base of the contact 56 and the valve mounting hole 54
This has the disadvantage of causing backlash and causing the mounted valve 52 to be unstable.

The present invention has been made in view of the above problems, and allows a contact to be inserted and mounted from behind into a valve mounting hole of a housing, and the wrinkle of the contact caused by the valve when the wedge base valve is mounted. It is an object of the present invention to provide a wedge-based valve socket in which the contact is mounted without looseness.

[0007]

According to one aspect of the present invention to such a wedge base bulb socket, in the socket to conduct leads the wedge base bulb to electrical at the same time bears held沿設the valve base portion, the socket body Ha
At the end of the housing, the end of the guide projection insertion groove on the valve insertion side
Guide ribs that are retracted from the groove bottom level
When fitting a pair of contacts, each of which is connected to a lead wire fixedly opposed to a valve mounting hole formed in the socket body, with a contact mounting groove structure formed in the valve mounting hole, both sides of the base portion of the back plate of the contact , To the guide rib
A guide projection is provided at each tip of a pair of holding tongues bent at right angles to each other, and a pressing protrusion is provided at the base end of each holding tongue so as to abut the groove bottom of the guide protrusion insertion groove. The
And each protrude outwardly from the substrate surface of the clamping tongues is to the gist formed Rukoto.

[0008]

According to the above construction, the guide rib formed at the mouth end of the valve mounting hole and the socket formed at the tip of the contact.
Since the guide structure consisting of guide projections projecting toward the guide ribs at the housing end of the main body acts to guide the tip of the valve base to the center of the hole, the valve is not inserted into a predetermined outside position, It is possible to eliminate the occurrence of “twisting”. In addition , since a pressing projection is provided at the base of the contact so as to abut against the groove bottom of the contact mounting groove structure, the contact and the contact mounting groove structure come into close contact after assembly, so that the contact does not rattle. The valve sandwiched between them can be securely attached to the socket without rattling.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the wedge-based valve socket according to the present invention will be described below with reference to FIGS.

In this embodiment, a valve base 1 of a valve 1 is provided.
01, a lead wire 102 derived from the filament at the lower end,
A description will be given of a single filament wedge-based valve socket in which the lead wires 102, 102 are projected and the lead wires 102, 102 are bent along the surface of the valve base portion 101.

Reference numeral 2 denotes a socket body made of a non-conductive hard synthetic resin having a bayonet-type mounting flange 4 integrally formed at the base of the housing 3.
The valve insertion hole 5 into which the valve base 101 of the valve 1 is inserted from the front end side has a substantially rectangular shape, and communicates with the rear surface of the mounting flange 4 from both sides of the bottom of the valve mounting hole 5. Lead holes 6, 6 are formed.

The valve mounting hole 5 has valve support projections 501 and 501 extending at both ends in the longitudinal direction so as to sandwich both sides of the mounted valve 1, and leads from the end of the valve support projection 501. In the holes leading to the line lead-out holes 6, contact mounting groove structures 7, 7 extending in the direction of the holes are formed.

The contact 8 to be mounted in the contact mounting groove structure 7 is formed by sheet metal processing of a thin metal plate,
The base tongues are bent at right angles, and holding tongue pieces 82, 82 extending to a position retracted from the front end of the back plate 81 are formed facing each other.
3, 83 are formed to be bent in opposite directions to each other. At the base end of each holding tongue piece 82, a holding projection 84 is formed to be bent backward from the substrate surface BL, and at the tip of the valve holding portion 83, a guide projection 85 projecting outward from the substrate surface BL is projected. is there. Locking edges 86 are provided on both sides of the upper end of the back plate 81, and a lead wire 9 is connected to the lower end. In the vicinity of the upper end of the back plate 81, a downwardly extending plate-shaped locking tongue piece 87 is cut and raised to protrude, and
A locking tab 88 is protrudingly provided near the lower side of the locking tongue piece 87.

The contact mounting groove structure 7 includes a pair of guide grooves 7 for fitting the locking edges 86 of the contact 8.
1, 71, a locking rib 73 formed in the middle part of a sliding groove 72 into which a locking tongue piece 87 and a locking staple 88 are inserted, and a guide projection formed at the tip of the holding tongue piece 82 of the contact 8. 85
Guide projection insertion groove 7 formed so that it can be inserted
The guide projection insertion groove 74 is provided at a valve insertion side end thereof at a position retracted from the groove bottom level of the guide projection insertion groove 74 and provided with a guide rib 75 at an end of the housing 2. Is protruding.

When assembling the contacts 8, 8, the contacts 8 to which the lead wires 9 are connected are incorporated into the contact mounting structure 7 formed in the valve mounting hole 5 from the mounting flange 4 side. ,
86 is inserted into the guide grooves 71, 71, the locking tongue 87
Is engaged between the locking tab 88 and the locking tongue 87 when the sliding groove 72 slides over the locking rib 73. At this time, the guide projections 85 projecting outward from the substrate surface BL of the sandwiching tongue pieces 82, 82 slide along the guide projection insertion grooves 74 and the guide ribs 75 projecting from the mouth end of the valve mounting hole 5. The guide projection 85 is supported at the inner step position, and the holding projection 84 comes into contact with the groove bottom of the guide projection insertion groove 74 to prevent the holding tongue piece 82 from rattling. Reference numeral 10 denotes a packing interposed between the lead wire 9 and the lead wire lead-out hole 6.

The wedge-based valve socket having the above-described structure is configured such that the valve base 101 of the valve 1 is pushed into the valve mounting hole 5 of the housing 2 to support and hold the valve 1 and simultaneously connect the lead wires 102 and 102 to the contacts 8. , 8 are electrically connected. Since the guide rib 75 protrudes from the end of the housing 2 during this mounting, the valve base 101 is introduced into the guide rib 75. Then, as shown in FIG. 8, a guide projection 85 projecting from the tip of the contact 8 is provided on the substrate surface BL.
Since the valve base portion 101 has a structure retracted further outward, the valve base portion 101 is provided with the valve holding portions 8 of the holding tongue pieces 82, 82.
It is introduced between 3,83 and is pinched by the spring force. Also, since the contact 8 is securely held by the holding projection 84, the mounted valve 1 is also supported without rattling.

In the above embodiment, the socket for a single filament wedge base valve has been described. However, there is also a double filament type wedge base valve. In this valve, two leads and three lead wires are provided at the end of the valve base. Is derived and refracted along the valve base surface. Also in this case, a guide rib 75 is formed in the valve mounting hole 5 and a guide projection 8 is formed in the contact 8.
It is needless to say that the same action can be exerted only by configuring No. 5.

[0018]

The wedge-based valve socket according to the present invention has a guide structure in which the tip of the valve base portion is guided to the center of the hole at the tip of the valve mounting hole and the contact as described above. It is possible to eliminate the occurrence of “prick” without being inserted into the outer position.

In addition, since a pressing projection is provided at the base of the contact to be in contact with the groove bottom of the contact mounting groove structure to eliminate looseness between the contact and the contact mounting groove structure, the valve sandwiched by the contact can be used as a socket. It is characterized in that it can be securely attached to the device without rattling, and the effect obtained by implementing the present invention is extremely large.

[Brief description of the drawings]

FIG. 1 is a central longitudinal sectional view of a wedge-based valve socket according to the present invention.

FIG. 2 is a vertical sectional view of a central portion of the socket body.

FIG. 3 is a plan view of the same.

FIG. 4 is a bottom view of the same.

FIG. 5 is a sectional view taken along line VV in FIG. 2;

FIG. 6 is a perspective view of a main part showing a structure of the valve mounting hole.

FIG. 7 is a front view (a), a left side view (b), and a plan view (c) of the contact.

FIG. 8 is an explanatory diagram showing a state in which a valve base portion of a wedge base valve is pushed into a valve mounting hole of a housing.

FIG. 9 is a sectional view of a main part showing a conventional socket.

10A and 10B are an explanatory view showing a state when a valve is mounted on a conventional socket and an explanatory view showing a relationship between a contact and a valve mounting hole.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Valve 101 Valve base part 3 Housing 2 Socket main body 5 Valve insertion hole 501 Valve support protrusion 6 Lead wire lead-out hole 7 Contact mounting groove structure 8 Contact 81 Back plate 82 Nipping tongue piece 83 Valve pressing part 84 Pressing projection 85 Guide projection 86 Locking edge 87 Locking tongue piece 88 Locking staple 71 Guide groove 72 Sliding groove 73 Locking rib 74 Guide protrusion insertion groove 75 Guide rib BL Board surface

Claims (1)

(57) [Scope of request for utility model registration] 1. A socket for supporting and holding a wedge base valve having a lead wire extending along a valve base portion and electrically conducting at the same time , a guide projection insertion groove is provided at an end of a housing of the socket body.
At the end of the valve insertion side of
When a pair of contacts, which are provided with protruding ribs and connect lead wires which are fixedly opposed to valve mounting holes formed in the socket body, are fitted to contact mounting groove structures formed in the valve mounting holes, the backs of the contacts are fitted. Position both sides of the base of the plate toward the guide ribs.
The guide protrusions as well as projecting from the respective tips of the only pair of clamping tongues refracted formed at right angles, to the proximal end of the sandwiching tongue, the guide projection insertion presser protrusion
Wedge base bulb socket, wherein formed isosamples protrude respectively outwardly from the substrate surface of the該挟Jishitahen so as to abut against the groove bottom of the groove.