JP3660468B2 - Lamp socket - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lamp socket.
[0002]
[Prior art]
A first conventional example is shown in FIG. 6 (for example, JP-A-7-122338). In other words, the lamp socket has a structure in which the contact spring member 101 is incorporated into the casing 100, the rear cover 102 is attached, and then the rotating member 103 is incorporated from the front surface of the casing 100.
[0003]
A second conventional example is shown in FIG. 7 (for example, JP-A-8-167461). That is, in this lamp socket, the direction in which the lamp socket is incorporated into the socket main body 104 is such that the rotor 105 is on the lamp side, the contact piece 106 and the lid 107 are on the electric wire side, and are 90 degrees apart.
A third conventional example is shown in FIG. 8 (for example, Japanese Patent Publication No. 63-29392). That is, since this lamp socket has a structure in which the elastic contact plate 109, the guide plate 110, and the back plate 111 are assembled to the socket body 108, the front surface of the socket body 108 is downward when the assembly is completed.
[0004]
[Problems to be solved by the invention]
In the first conventional example, the direction in which the contact spring member 101 and the rear cover 102 and the rotating member 103 are attached to the casing 100 is reversed, and the casing 100 must be turned upside down once and assembled. For this reason, in the case of an automatic machine, equipment for turning the casing 100 upside down is necessary, and in the case of hand assembly, the work of turning the casing 100 upside down is necessary, and the cost has to be borne. In addition, when a contact spring support portion is provided on the rear cover 102 and a protrusion is formed, the rear cover 102 is thin and the protrusion is raised at the end of the rear cover 102, so that the protrusion is not raised. There is a risk of warping.
[0005]
The second conventional example has the same problem.
In the third conventional example, since the socket body 108 had to be turned over to perform the socket assembly confirmation inspection (presence / absence inspection), the same problems as in the first conventional example occurred. In addition, since the wall portion is not provided at a location where the insulation (creeping) distance between the elastic contact plate 109 and the lighting fixture socket mounting plate is shortened on the periphery of the back plate 111 other than the lamp pin insertion groove, the insulation distance is short.
[0006]
Accordingly, an object of the present invention is to provide a lamp socket in which parts can be assembled from the front side and an operation of turning over the socket body is unnecessary.
[0007]
[Means for Solving the Problems]
The lamp socket of claim 1, wherein the pair of conductors having a wire connecting portion and the lamp pins contact portion, have a conductor support member for positioning supporting the conductors at predetermined intervals on the front surface of the front has a body after which have a peripheral wall formed on the periphery, a substantially circular lamp pins insert opening on the front plate a substantially box shape that the rear opening has a circumferential side plates fitted to the front plate and the peripheral wall And a lamp pin guide groove communicating between the lamp pin insertion opening and the side surface, the front body having the rear opening closed by the rear body, and the lamp pin insertion opening being rotatably covered. an outer peripheral edge Te is the in the slit with a slit for guiding the lamp pins passing through said groove in the radial direction while slidably engaged to the edge of the lamp pins through openings lamp pins of A rotor into contact with the lamp pin contact portion by dynamic,
An engaging portion is formed on the peripheral wall of the rear body, an engaging portion that engages with the engaging portion is formed on the peripheral side plate of the front body, and a circumferential groove is provided at a substantially central position of the rear body. A support cylinder is erected, a cylinder portion that is fitted to the support cylinder is provided on the rotor, and a protrusion that engages with the circumferential groove of the support cylinder is formed on the cylinder portion.
[0008]
According to the lamp socket of the first aspect, the conductor is assembled on the rear body, the front body is covered, and the rotor is mounted from the lamp pin insertion opening. In this case, each part is assembled to the rear body from one direction, so in the case of an automatic machine, there is no need for equipment to turn the front body upside down. You do n’t have to. Further, since the components are assembled from the upper part to the rear body, the front surface of the front body is upward when the assembly is completed, and the presence / absence and position of the assembled parts can be easily confirmed.
[0009]
Further, since the rear body has a peripheral wall and the front body is fitted on the peripheral wall, the rear body is less likely to be warped by the peripheral wall, and an insulation distance can be secured even if the socket body is downsized. In addition, the front body is externally fitted to the peripheral wall formed on the rear body and joined to each other, so even if force is applied to the front body, the force is received by the front body and the rear body, so the front body is against the rear body. Therefore, the front body and the rear body are not easily disengaged, thereby preventing the front body and the rear body from being disassembled.
[0010]
The lamp socket according to claim 2 is the lamp socket according to claim 1 , wherein the conductor support portion includes a terminal storage portion that stores the electric wire connection portion, and the electric wire connection portion includes a quick connection terminal. The wire insertion hole and the wire release hole are formed on the outer side of the lock spring, and the outer end of the wire release hole is on the base side of the lock spring so that the release jig presses the tip side of the lock spring of the quick-connect terminal. The inner surface is inclined so that the inner end is closer to the distal end side of the locking spring, and communicates with the wire insertion guide hole and the wire release hole that communicate with the wire insertion hole with the peripheral side plate of the front body. Electric wire release guide holes are provided respectively.
[0011]
According to the lamp socket of the second aspect , in addition to the same effect as that of the first aspect , when the electric wire connected to the socket is removed, the release jig can be pressed near the tip of the locking spring of the quick connection terminal. Since it is easy, the locking spring can be released with a weak force.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. That is, the lamp socket includes a conductor 1, a rear body 2, a front body 3, and a rotor 4.
The conductor 1 has a pair and has an electric wire connection portion 5 and a lamp pin contact portion 6. In the embodiment, the pair is symmetrical, but the same shape is used on the left and right. Moreover, the electric wire connection part 5 is comprised by the quick connection terminal. More specifically, a strip-shaped conductive plate is formed by pressing, the lamp pin contact portion 6 is formed by bending so as to protrude in one of the central thickness directions of the central plate, and one end portion thereof is connected to the lamp pin. After bending in the direction opposite to the protruding direction of the contact portion 6, it is folded back into a substantially horizontal U shape by the folded portion 5c, and the tip end portion is folded to form a wire contact piece 5b substantially parallel to the vicinity of the center. And a folded portion 5c are formed, and a locking spring 5a is formed, the tip of which is directed to the wire contact piece 5b. In addition, a scissor is attached to the center of the lock spring 5a to form two pieces of the lock spring 5a.
[0013]
The rear body 2 has conductor support portions 7 and 8 on the front surface for positioning and supporting the conductors at a predetermined interval. The rear body 2 of the embodiment has a peripheral wall 9 and is erected in a position slightly inward of the peripheral edge portion 2a of the rear body 2, and is recessed in the middle of the rear body 2 on both sides thereof to prevent warping. A portion 9a is formed, and an opening 9b is formed at the lower end. The conductor support portions 7 and 8 support both ends of the conductor, and the conductor support portion 8 forms a terminal storage portion 10 that stores the wire connection portion 5. A locking spring contact portion 10 a is provided upright at a substantially central position of the terminal storage portion 10. In addition, a pair of electric wire insertion holes 11 and electric wire release holes 12 are formed in the terminal housing portion 10 on the left and right. The conductor support portion 7 is formed by a groove in which the tip of the conductor 1 is locked. A support cylinder 21 with a split through which the lamp pin passes is erected at a substantially central position of the rear body 2, and a rotor locking portion 22 is formed by a circumferential groove on the outer periphery of the tip. Further, a front body locking portion 28 is provided by a protrusion at the center of the upper end side of the peripheral wall 9. As shown in FIGS. 2 and 4, the wire connecting portion 5 at one end of the conductor 1 is housed in the terminal housing portion 10 of the conductor support portion 8, and the other end is engaged with the conductor support portion 7. 1 is held by the rear body 1. At this time, the wire contact piece 5b and the folded portion 5c are supported by the inner wall surface of the terminal storage portion 10, and the contact portion 10a faces the locking spring 5a. A support cylinder 21 is positioned between the pair of conductors 1.
[0014]
The front body 3 has a front plate 13 and a peripheral side plate 14 and has a substantially box shape opened on the back surface. The front body 3 has a substantially circular lamp pin insertion opening 16 on the front plate 13, and includes a lamp pin insertion opening 16 and a side surface. There is a lamp pin guide groove 15 in communication therewith, the rear opening is closed by the rear body 2, and the conductor 1 is concealed inside. The front body 3 of the embodiment is externally fitted to the peripheral wall 9, the portion forming the groove 15 is fitted to the opening 9 b, and the rear opening edge is in contact with the peripheral edge 2 a of the rear body 2. The peripheral side plate 14 is provided with a wire insertion guide hole 17 communicating with the wire insertion hole 11 and a wire release guide hole 18 communicating with the wire release hole. The lamp insertion opening 16 forms a step 16a at the peripheral edge. Reference numeral 27 denotes an attachment leg, and 29 denotes an attachment engaging portion formed by a recess. When the front body 3 is fitted to the rear body 2, the attachment engaging portion 29 is locked to the front body locking portion 28.
[0015]
Here, as shown in FIGS. 4 and 5, the wire releasing guide hole 18 and the wire releasing hole 12 are configured so that the releasing jig 30 presses the tip side of the locking spring 5a of the quick-connection terminal. Specifically, the center lines of the wire release hole 12 and the wire release guide hole 18 are shifted so that the direction connecting the hole centers is inclined toward the distal end side of the locking spring 5a of the quick connection terminal, and in the same direction as that. An inclined surface 18 a for guiding the release jig 30 is formed in a part of the wire release hole 12.
[0016]
The rotor 4 rotatably covers the lamp pin insertion opening 16, has a slit 20 that guides a lamp pin (not shown) that has passed through the groove portion 15 in the radial direction, and rotates the lamp pin within the slit 20. By doing so, the lamp pin contact portion 6 is brought into contact. In the embodiment, a cylindrical portion 23 and a flange portion 24 provided at one end of the cylindrical portion 23, and an engaging portion 25 that is slidably locked to the rotor locking portion 22 are provided around the inner peripheral surface of the cylindrical portion 23. The flange portion 24 is slidably engaged with the step portion 16 a on the periphery of the opening 16, and the outer peripheral surface of the cylindrical portion 23 is elastically held near the center of the conductor 1. Has been. The front body 3 is also held by the rear body 2 by the rotor 4 being locked to the rotor locking portion 22. Here, when a pair of lamp pins at one end of the straight tube lamp is passed through the slit 20 and rotated about the tube axis, the rotor 4 rotates and at the same time the lamp pin becomes a stepped concave portion of the lamp pin contact portion 6 of the conductor 1. Positioned and engaged and elastically pressed.
[0017]
The rear body 2, the front body 3, and the rotor 4 are made of insulating plastic. Reference numeral 40 denotes an electric wire detection hole for looking through the tip of the electric wire.
FIG. 5A shows a state in which the electric wire 34 is connected to the electric wire connecting portion 5, and the tip of the locking spring 5 a bites into the electric wire 34 to prevent the electric wire 34 from being pulled out and at the same time pressed against the electric wire contact piece 5 b by the locking spring 5 a. Are in electrical contact. Note that the release jig 30 is simply inserted. FIG. 5B shows a state in which the release jig 30 is pushed into the wire release hole 12, and the wire release hole 12 is inclined toward the tip of the lock spring 5a. The front end side of the lock spring 5a is pressed, the lock spring 5a moves away from the electric wire 34, is supported by the contact portion 10a, the bite of the electric wire 34 is released, and the electric wire 34 can be pulled out.
[0018]
According to this embodiment, the conductor 1 is assembled on the rear body 2, the front body 3 is covered, and the rotor 4 is mounted from the lamp pin insertion opening 16 for assembly. In this case, since the parts are assembled to the rear body 2 from one direction, in the case of an automatic machine, the equipment for turning the front body 3 upside down is not necessary in manufacturing, and the work of turning the front body 3 upside down is not necessary in the case of hand assembly. It will not be necessary to bear. In addition, since the parts are assembled to the rear body 2 from above, the front surface of the front body 3 faces upward when the assembly is completed, so that the presence / absence and position of the assembled parts can be easily confirmed. .
[0019]
Further, the peripheral wall 9 makes it difficult for the rear body 2 to warp, and an insulation distance can be secured even if the socket body is downsized. In addition, since the front body 3 is externally fitted to the peripheral wall formed in the rear body 2 and coupled to each other, even if force is applied to the front body 3, the force is received by the front body 3 and the rear body 2, so the front body 3 3, the position of the front body 3 and the rear body 2 are not easily displaced from each other, so that the front body 3 and the rear body 2 are not easily disengaged, so that the front body 3 and the rear body 2 can be prevented from being disassembled.
[0020]
Further, when the electric wire 34 connected to the socket is removed, it is easy to press the release jig 30 against the vicinity of the tip of the lock spring 5a of the quick connection terminal, so that the lock spring 5a can be released with a weak force. .
[0021]
【The invention's effect】
According to the lamp socket of the first aspect, the conductor is assembled on the rear body, the front body is covered, and the rotor is mounted from the lamp pin insertion opening. In this case, each part is assembled to the rear body from one direction, so in the case of an automatic machine, there is no need for equipment to turn the front body upside down. You do n’t have to. Further, since the components are assembled from the upper part to the rear body, the front surface of the front body is upward when the assembly is completed, and the presence / absence and position of the assembled parts can be easily confirmed.
[0022]
Further, the rear wall is less likely to be warped by the peripheral wall, and an insulation distance can be secured even if the socket body is downsized. In addition, the front body is externally fitted to the peripheral wall formed on the rear body and joined to each other, so even if force is applied to the front body, the force is received by the front body and the rear body, so the front body is against the rear body. Therefore, the front body and the rear body are not easily disengaged, thereby preventing the front body and the rear body from being disassembled.
[0023]
According to the lamp socket of the second aspect , in addition to the same effect as that of the first aspect , when the electric wire connected to the socket is removed, the release jig can be pressed near the tip of the locking spring of the quick connection terminal. Since it is easy, the locking spring can be released with a weak force.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a first embodiment of the present invention.
FIG. 2 is a perspective view of a rear body in a state in which a conductor is mounted.
FIG. 3 is a perspective view of a state in which a front body is put on a rear body.
FIG. 4 is a cross-sectional view of a terminal portion.
FIG. 5 is a cross-sectional view showing a wire connection state (a) and a wire release (b).
FIG. 6 is a cutaway perspective view of a first conventional example.
FIG. 7 is an exploded perspective view of a second conventional example.
FIG. 8 is an exploded perspective view of a third conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Conductor 2 Rear body 3 Front body 4 Rotor 5 Electric wire connection part 5a Locking spring 6 Lamp pin contact part 7, 8 Conductor support part 9 Perimeter wall 10 Terminal accommodating part 11 Electric wire insertion hole 12 Electric wire release hole 13 Front panel 14 Circumferential side board 15 Groove portion 16 Lamp pin insertion opening 17 Electric wire insertion guide hole 18 Electric wire release guide hole 20 Slit

Claims (2)

To Yes a pair of conductors having a wire connecting portion and the lamp pins contact portion, the these conductors have a conductor support member for positioning the support at a predetermined distance in front peripheral edge formed peripheral wall of the front A rear body, a front plate and a peripheral side plate that fits around the peripheral wall, and is a substantially box-shaped opening on the back surface, the front plate having a substantially circular lamp pin insertion opening, and the lamp pin insertion opening and the side surface A front pin body having a lamp pin guide groove communicating therewith, and the rear opening being closed by the rear body, and the lamp pin insertion opening rotatably covering the outer periphery of the lamp pin insertion opening. wherein by a slit for guiding the lamp pins passing through said groove in the radial direction while slidably engaging the edges to rotate the lamp pins within said slit lamp pins And a rotor contacting the contact portion,
An engaging portion is formed on the peripheral wall of the rear body, an engaging portion that engages with the engaging portion is formed on the peripheral side plate of the front body, and a circumferential groove is provided at a substantially central position of the rear body. A lamp socket in which a support cylinder is erected, a cylinder portion that is fitted to the support cylinder is provided on the rotor, and a protrusion that engages with the circumferential groove of the support cylinder is formed on the cylinder portion . The conductor support portion has a terminal storage portion for storing the wire connection portion, the wire connection portion is constituted by a quick connection terminal, and a wire insertion hole and a wire release hole are formed in the terminal storage portion, The outer end of the wire release hole is formed on the base side of the lock spring, and the inner end is close to the tip side of the lock spring so that the release jig presses the tip side of the lock spring of the quick connection terminal. wire insertion guide hole and the lamp of claim 1, wherein the wire release guide hole communicating with the wire releasing hole is provided respectively an inner surface inclined to become, to communicate with the wire insertion holes in the circumferential side plate of the front body socket.

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