JPH08236232A - Lamp socket - Google Patents

Abstract

PURPOSE: To provide a lamp socket with which an electric shock is prevented and safety is retained in the case of lamp replacement or the like. CONSTITUTION: A socket main body 1 has an aperture 3 into which a base is to be inserted, an installation slit 5 into which a pin to hold a lamp is to be inserted in the peripheral part of the aperture 3, and contact terminals 6, 7 to be brought into contact with electrodes in the inside of the aperture 3. The socket main body is further provided with a shielding body 2 to shield the contact terminal 6 installed in the socket main body 1 and positioned in the inside of the installation slit 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp socket applied to a vehicle headlight device or the like.

[0002]

2. Description of the Related Art A conventional example is shown in FIGS. That is, 69 is a socket body, 70 and 71 are contact terminals,
72 is an electric wire connected to a lighting device (not shown), 73 is a high pressure discharge lamp (HID lamp), 74 is an arc tube, 75 is a base, 76 is a central electrode, and 77 is a peripheral electrode.

The lamp socket has a bayonet-type lamp mounting structure. The lamp holding pin 78 of the base 75 is inserted along the L-shaped mounting slit 79 of the lamp socket and then rotated to hold the lamp 73. The base 75 is attached to the lamp socket as shown by the imaginary line in FIG. 29, the central electrode 76 fits into the contact terminal 71, and the peripheral electrode 77 comes into contact with the contact terminal 70. A high-voltage pulse from the lighting device is applied between the central electrode 76 and the peripheral electrode 77 through the contact terminals 70 and 71, the arc tube 74 starts discharging, and the lamp is lit stably. When the high-pressure discharge lamp is normally turned on stably and then turned off, it is difficult to restart even if the power is turned on again, but if a very high voltage is applied during this restart, it can be started instantaneously.
This lamp socket can also be used as a lighting device that can be instantly restarted.
It is applied to both ends of the arc tube 74 through 77.

[0004]

However, the lamp 73
Has a positional relationship between the peripheral electrode 77 of the base 75 and the lamp holding pin 78 determined by the base shape. Since the lamp holding pin 78 and the peripheral electrode 77 are close to each other, the contact terminal 70
Is located immediately inside the mounting slit 79, so that when a high voltage is applied to the peripheral electrode 77, when the lamp body is separated from the main body of the fixture such as in a vehicle headlight device, the outer periphery of the socket body 69 is separated. Insulation distance from the part is required, and in the case of the conventional structure, it is dangerous if a high voltage pulse is generated at the time of starting.

Also, when the socket body 69 is removed from the lamp 73, unless the original switch is turned off, there is a danger of touching the charging part and electric shock, and especially a HID lamp or the like having a starting pulse of several kV or more is dangerous. Therefore, in the conventional lighting device, the generation of the high voltage pulse is limited to only the central electrode 76. However, if the lead wire 72 connecting the lighting device and the lamp socket is mistakenly connected in reverse, the insulation distance becomes insufficient.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a lamp socket which can prevent electric shock when replacing the lamp and can improve safety.

[0007]

A lamp socket according to claim 1, wherein a lamp having an electrode on the base and a lamp holding pin on the outer peripheral surface of the base is mounted on the lamp socket, the opening into which the base is inserted. Having a mounting slit for inserting the lamp holding pin at the edge of the opening,
The socket body has a contact terminal that contacts the electrode inside the opening, and a concealing body that is provided in the socket body and conceals the contact terminal located inside the mounting slit.

A lamp socket according to a second aspect of the present invention is the lamp socket according to the first aspect, wherein the concealing body is formed integrally with the socket body so as to cover the outside of the mounting slit. A lamp socket according to claim 3 is the lamp socket according to claim 1,
The concealing body extends over substantially the entire length of the socket body in the lamp attachment / detachment direction, and is projected from the socket body so as to cover the outside of the mounting slit.

A lamp socket according to a fourth aspect of the present invention is the lamp socket according to the third aspect, wherein the concealing body has a lead wire drawing portion. A lamp socket according to a fifth aspect is the lamp socket according to the first aspect, wherein the concealing body is movable in the lamp attaching / detaching direction with respect to the socket body, and the lamp retaining pin covers the attaching slit in a state of being engaged with the attaching slit. To do.

According to a sixth aspect of the present invention, in the lamp socket according to the fifth aspect, the concealing body is a cylindrical body rotatably fitted in the socket body, and the concealing body is moved in the lamp mounting direction by the rotation of the concealing body. The threaded portion is provided on the inner peripheral surface of the concealing body and the outer peripheral surface of the socket body. The lamp socket according to claim 7 is the lamp socket according to claim 5, wherein the mounting slit has a linear shape extending in the lamp attaching / detaching direction, and the lamp base is retained while the lamp holding pin is inserted in the mounting slit. It has a retaining means.

The lamp socket according to claim 8 is the lamp socket according to claim 5,
In Claim 6 or Claim 7, it has an interlock switch which operates by movement of the above-mentioned concealing object. The lamp socket according to claim 9 is the lamp socket according to claim 7,
The retaining means has a lock portion that locks and locks the lamp holding pin, and a lock release operation tool that releases the lock portion, and the lock release operation tool is provided on a surface other than the opening surface of the socket body. There is something.

The lamp socket of claim 10 is the lamp socket of claim 1.
In the above, the concealing body is in close contact with the back surface of the reflector. The lamp socket according to claim 11 is the packing according to claim 1, wherein the concealing body is a substantially ring-shaped packing supported between the contact terminal and an inner peripheral surface of the socket body,
When the lamp is not mounted, the contact terminal projects outward from the tip of the contact terminal, and when the lamp is mounted, the contact terminal is pressed against the electrode of the lamp by being pressed by the base.

The lamp socket according to claim 12 is the lamp socket according to claim 1.
In the above, the socket main body has a pair of contact terminals at the center thereof, the base has a pair of lamp holding pins, and the lamp holding pins and the contact terminals are arranged in one diameter direction. A lamp socket according to a thirteenth aspect is the lamp socket according to the twelfth aspect, wherein the contact terminal near the mounting slit is arranged in a diameter direction orthogonal to a direction in which the lamp holding pin and the contact terminal are arranged.

[0014]

According to the lamp socket of claim 1, when the lamp is replaced, the concealing member protects the charged portion of the contact terminal that passes through the mounting slit. Therefore, there is no danger of electric shock even when the power is on. You can be safe. Further, since the mounting slit is protected by the concealing body, it is possible to prevent the mounting slit and the electrode from being damaged by an external force. Furthermore, the insulation protection of the contact terminal near the mounting slit allows the lighting device to be connected to the contact terminal regardless of the polarity of the lighting device, so that the connection is correct.

According to the lamp socket of the second aspect, in the first aspect, the concealing body is formed integrally with the socket main body so as to cover the outside of the mounting slit, and thus the operation of the first aspect is achieved. The number of parts can be reduced. According to the lamp socket of claim 3, claim 1
2. The lamp socket according to claim 1, wherein the concealing member extends substantially the entire length of the socket main body in the lamp attaching / detaching direction and is projected from the socket main body so as to cover the outside of the mounting slit. When the lamp is connected to the lamp, the concealing member of the lamp socket is aligned with the lamp holding pin, which facilitates mounting. Further, when the socket body is mounted by rotating with respect to the lamp, the concealing body is easily gripped, the socket body is easily rotated, and the mounting is facilitated.

According to the lamp socket of the fourth aspect, in the third aspect, since the concealing body has the lead wire lead-out portion, in addition to the function of the third aspect, it is difficult for the hand to touch the peripheral portion of the lamp holding pin. It has a safer structure. According to a fifth aspect of the present invention, in the first aspect, the concealing body is movable in the lamp attaching / detaching direction with respect to the socket body, and the lamp holding pin is engaged with the attaching slit. In addition to the effect of the first aspect, the lamp holding pin is easily fitted into the mounting slit by retracting the concealing member when the lamp is mounted, so that the lamp can be easily mounted.

According to a sixth aspect of the present invention, there is provided the lamp socket according to the fifth aspect, wherein the concealing body is a cylindrical body rotatably fitted in the socket body, and the concealing body is rotated to rotate the concealing body in a lamp mounting direction. Since the screw part to be moved to the inner peripheral surface of the concealing body and the outer peripheral surface of the socket body are provided, the operation of mounting the socket body and the rotation of the concealing body are continued in addition to the function of claim 5. Since the operation is performed in the rotation direction, the operation is easy and the operation of the concealing body is easy to understand.

According to a seventh aspect of the present invention, there is provided the lamp socket according to the fifth aspect, wherein the mounting slit has a linear shape extending in a lamp attaching / detaching direction, and the lamp holding pin is inserted into the mounting slit. In addition to the function of claim 5, there is no movement in the rotational direction when the socket body is attached, so that the movement space required for the movement can be omitted. You can Further, the lamp socket can be attached and detached without being caught by the position of the lamp holding pin.

According to the lamp socket of claim 8, in claim 5, claim 6, or claim 7, the lamp socket has an interlock switch which is operated by the movement of the concealing body. In addition to the action of item 7,
Since the interlock switch can be actuated at the same time that the concealing body is moved, the operation is easy, and the power is turned off by the interlock to further prevent electric shock.

According to a ninth aspect of the lamp socket, in the seventh aspect, the retaining means includes a lock portion for locking and locking the lamp holding pin, and a lock release operation tool for releasing the lock portion. Since the unlocking operation tool is provided on a surface other than the opening surface of the socket body, the unlocking operation and the attaching / detaching operation can be easily performed at the same time, in addition to the effect of the seventh aspect.

According to the lamp socket of the tenth aspect, in the first aspect, since the concealing body is in close contact with the back surface of the reflector, the lamp height can be increased by attaching the lamp socket to the lamp. The voltage section can be protected by waterproofing for safety. According to the lamp socket of claim 11, in the case of claim 1, the concealing body is a substantially ring-shaped packing supported between the contact terminal and an inner peripheral surface of the socket body, and in a state where the lamp is not mounted. The protrusion of the contact terminal is further outward than the tip of the contact terminal, and when the lamp is mounted, the contact terminal is pressed against the electrode of the lamp by being pressed by the base, so that the electrode of the lamp is prevented from being exposed. Therefore, the waterproofing of the electrode can be easily performed, the contact pressure between the electrode and the contact terminal can be increased, and loose contact can be prevented.

According to a twelfth aspect of the lamp socket, in the first aspect, the socket body has a pair of contact terminals at the center thereof, the base has a pair of lamp holding pins, and the lamp holding pin is Since the contact terminals are arranged in one diameter direction, the central electrode and the pair of contact terminals can be stably contacted with respect to the inclination of the lamp, in addition to the effect of the first aspect. Also, when the lamp socket is used in a vehicle, the central electrode of the lamp vibrates vertically, but by arranging a pair of contact terminals that fit the central electrodes horizontally, it is difficult to receive the force due to the vibration. There is no fatigue in the spring.

According to the lamp socket of the thirteenth aspect, in the twelfth aspect, the contact terminal in the vicinity of the mounting slit is arranged in a diameter direction orthogonal to a direction in which the lamp holding pin and the contact terminal are arranged. Therefore, in addition to the effect of claim 12, the contact terminals in the vicinity of the mounting slit can have a large spring property, so that by vertically arranging them, the cap of the lamp is sandwiched, and it is easy to cope with the vertical movement, and the vibration of the lamp is easily suppressed. It will prevent.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. That is, this lamp socket is for mounting a lamp having an electrode on a base and a lamp holding pin on the outer peripheral surface of the base, and has a socket body 1 and a concealing body 2. The lamp 73 has the same structure as that shown in FIG. 28 for explaining the conventional lamp socket.

The socket body 1 has the opening 3 into which the base 75 is inserted, the mounting slit 5 into which the lamp holding pin 78 is inserted, at the edge of the opening 3, and the central electrode 76 which is an electrode.
And the contact terminals 6 and 7 that come into contact with the peripheral electrode 77 are opened 3
Have inward. The mounting slit 5 is for mounting the socket body 1 on the lamp 73 in a bayonet manner,
The lamp holding pin 78 is formed by inserting the lamp 73 into the socket body 1 and rotating it by forming the lamp 73 in the socket body 1 at four positions, each of which is formed with a vertical slit 5a parallel to the lamp attaching / detaching direction of the socket body 1 and a horizontal slit 5b extending in the circumferential direction. Is engaged with the mounting slit 5 to mount the lamp 73. The contact terminal 6 contacts the peripheral electrode 77, and the contact terminal 7 contacts the central electrode 76. Reference numeral 8 denotes a concealing body locking portion provided on the outer peripheral surface of the socket body 1, and has ribs 13 for restricting movement such as rotation. 9 is a lead wire drawing portion, 10
Is a lead wire for connecting the contact terminals 6 and 7 to the lighting device, 14
Is an insulating cylindrical portion that protects the contact terminal 7.

The concealing body 2 conceals the contact terminal 6 provided on the socket body 1 and located inside the mounting slit 5. The embodiment is an insulating ring that is loosely fitted in the socket body 1, and a pair of claws 11 that engage with the concealing body engaging portion are formed between them by forming a pair of split grooves 12. The base 75 (Fig. 28) of the lamp 73 is inserted into the opening 3 of the socket body 1 from the direction of the arrow in Fig. 2, and at this time, the lamp holding pin 73 is fitted into the vertical slit 5a of the mounting slit 5 to rotate. Is locked by the horizontal slit 5b. At the same time, the central electrode 76 of the lamp 73 comes into contact with the contact terminal 7 of the socket body 1, and the peripheral electrode 77 comes into contact with the contact terminal 6 of the socket body 1, so that power can be supplied from the lighting device.

According to this embodiment, since the concealing body 2 protects the charged portion of the contact terminal 6 through the mounting slit 5 when the lamp is replaced, there is no danger of electric shock even when the power is on. You can be safe. Further, since the mounting slit 5 is protected by the concealing body 2, damage to the mounting slit 5 and the electrodes due to external force can be prevented. Further, since the contact terminal 6 near the mounting slit 5 is insulated and protected, the lighting device can be connected to the contact terminal 6 regardless of the polarity of the lighting device.

A second embodiment of the present invention is shown in FIG. That is, this lamp socket is formed integrally with the socket body 1 so that the concealing body 2 covers the outside of the mounting slit 5 in the first embodiment. In the embodiment, a cylindrical outer peripheral wall is further added to the outer periphery of the socket body 1 through a plurality of rib-shaped connecting portions 15 extending in the axial direction, thereby covering the mounting slit 5.
Further, the lead wire drawing portion 9 penetrates the concealing body 2.

According to this embodiment, since the concealing body 2 is formed integrally with the socket body 1, the number of parts can be reduced. Others are the same as those in the first embodiment. A third embodiment of the present invention is shown in FIG. That is, in this lamp socket, in the first embodiment, the mounting slits 5 are provided at two locations opposed to each other in the radial direction orthogonal to the radial direction in which the lead wire lead-out portion 9 projects, and the concealing body 2 is provided in the socket body 1.
Of the socket main body 1 so as to extend over substantially the entire length in the lamp attaching / detaching direction and to cover the outside of the mounting slit 5.

According to this embodiment, when the lamp socket is connected to the lamp 73, the concealing body 2 of the lamp socket is aligned with the lamp holding pin 78, which facilitates mounting.
Further, when the socket body 1 is rotated and attached to the lamp 73, the concealing body 2 can be easily grasped, and the socket body 1 can be easily rotated and easily attached. Others are the same as those in the first embodiment.

A fourth embodiment of the present invention is shown in FIG. That is, this lamp socket has the lead wire drawing portion 9 in the concealing body 2 in the third embodiment. According to this embodiment, since the lead wire extends from the vicinity of the lamp mounting portion, the peripheral portion of the lamp holding pin 78 is hard to touch and the structure is safer. Others are the same as those in the third embodiment.

A fifth embodiment of the present invention is shown in FIGS.
Shown in That is, in this lamp socket, in the first embodiment, the concealing body 2 is movable in the lamp attaching / detaching direction with respect to the socket body 1, and the lamp holding pin 78 (FIG. 28) is engaged with the mounting slit 5. In this state, the mounting slit 5 is covered. In the embodiment, the concealing body 2 is the first.
Similar to the embodiment described above, the concealing body 17 is formed with the insulating ring, and the concealing body 17 covers the mounting slit 5 and the retaining claw 11 elastically engages with the concealing receiving portion 17 is formed in the concealing body retaining portion 8. .
Reference numeral 18 denotes a ring-shaped ridge provided on the side of the opening 3 of the socket body 1 of the lock receiving portion 17, and locks the locking claw 11 to prevent the concealing body 2 from being pulled out. 18a designates the concealing body 2 as the socket body 1
It is a guide of the locking claw 11 when it is fitted to.

6 and 8 show a state in which the mounting slit 5 is covered with the concealing body 2, and at this time, the locking claw 11 is locked to the locking receiving portion 17. FIG. 7 shows a state in which the concealing body 2 is moved to the side opposite to the opening 3 of the socket body 1 in the axial direction. The locking claw 11 is elastically deformed and separated from the locking receiving portion 17, and the mounting slit 5 is exposed. To do. According to this embodiment,
By retracting the concealing body 2 when the lamp is mounted, the lamp holding pin 78 can be easily fitted into the mounting slit 5 and can be mounted easily.

A sixth embodiment of the present invention is shown in FIG. That is, this lamp socket is a cylindrical body in which the concealing body 2 is rotatably fitted in the socket body 1 in the fifth embodiment, and a screw for moving the concealing body 2 in the lamp attaching / detaching direction by the rotation of the concealing body 2. The portions 19 are provided on the inner peripheral surface of the concealing body 2 and the outer peripheral surface of the socket body 1. In the embodiment, the outer screw 20 is formed on the outer periphery of the socket body 1, the inner screw 21 is formed on the inner peripheral surface of the concealing body 2, and the both are screwed together.
Therefore, when the concealing body 2 is rotated, the concealing body 2 is accompanied by it.
Moves in the axial direction of the socket body 1.

According to this embodiment, since the mounting operation of the socket body 1 and the rotation of the concealing body 2 are continuously performed in the rotating direction, the operation is easy and the operation of the concealing body 2 is easy to understand.
A seventh embodiment of the present invention is shown in FIGS.
That is, in this lamp socket, in the fifth embodiment, the mounting slit 5 has a linear shape extending in the lamp attaching / detaching direction, and the lamp holding pin 78 is inserted into the mounting slit 5 so that the base 75 of the lamp 73 is not inserted. It has retaining means 25 for retaining. In the embodiment, a large number of mounting slits 5 are formed so as to extend linearly in the axial direction. The retaining means 25 is formed by forming the outer surface of each piece 23 between the mounting slits 5 into an inclined surface that gradually protrudes outward toward the opening 3 side in the axial direction. Is formed. Locking claw 11 and lock receiving portion 17 of the concealing body 2
The configuration is similar to that of the fifth embodiment.

Insert the base 75 of the lamp 73 into the opening 3,
The lamp holding pin 78 is inserted into the mounting slit 5 to contact the contact terminals 6, 7 with the peripheral electrode 70 and the central electrode 71. When the concealing body 2 is moved to the opening 3 side and the locking claw 11 is elastically locked to the locking receiving portion 17, the inclined surface of the piece 23 which is the retaining means 25 is pressed by the inner peripheral surface of the concealing body 2. As a result, each piece 23 is bent inward in the radial direction, and the entire piece 23 clamps the outer peripheral surface of the base 75 of the lamp 73 to hold the base 75 and the lamp holding pin 78.

According to this embodiment, since there is no movement in the rotation direction when the socket body 1 is attached, the movement space required for the movement can be omitted. Further, the lamp socket can be attached and detached without being caught by the position of the lamp holding pin 78. In this example, the concealing body 2 is used.
May be engaged with the socket body 1 by the same screw mechanism as in the sixth embodiment, and may be moved in the axial direction of the socket body 1 by rotating the concealing body 2.

An eighth embodiment of the present invention is shown in FIGS. 12 and 13. That is, this lamp socket is provided with the interlock switch 27 which operates in accordance with the movement of the concealing body 2 in the fifth embodiment. The interlock switch 27 of the embodiment is provided on the outer peripheral surface of the socket body 1 on the side opposite to the opening 3 of the lock receiving portion 17, and has a switch button 28 movably provided in a through hole 33 of the socket body 1. It comprises a fixed contact plate 30 having a fixed contact 29 provided inside the socket body 1, and a movable contact plate 32 having a movable contact 31 which is in normally closed contact with the fixed contact 29 and which is opened and closed by the operation of a switch button 28. The switch button 28 is formed with a taper 28a on the upper end side in the axial direction of the socket body 1 so that the through hole 33 is projected and retracted by the axial movement of the concealing body 2.
Therefore, the interlock switch 27 is in the ON state when the locking claw 11 is locked to the locking receiving portion 17 and the concealing body 2 covers the mounting slit 5. When the concealment body 2 is moved downward so as to expose the mounting slit 5, the switch button 28 is pressed by the end of the concealment body 2 and is recessed in the through hole 33, and the movable contact plate 32 is separated from the fixed contact plate 30. The movable contact 31 is separated from the fixed contact 29, and no voltage appears between the contact terminals 6 and 7. Reference numeral 33 is an interlock lead wire 33.

According to this embodiment, since the interlock switch 27 can be actuated at the same time that the concealing body 2 is moved, the operation is easy, and the power is turned off by the interlock to further prevent electric shock. Others are the same as those in the fifth embodiment. A ninth embodiment of the present invention is shown in FIGS. That is, this lamp socket is
In this embodiment, the same threaded portion 19 as in the sixth embodiment is formed between the concealing body 2 and the outer peripheral surface of the socket body 1, and the operating piece 35 is provided at the lower end portion of the concealing body 2. The switch button 28 of the interlock switch 27 is formed with a taper 28a on the side opposite to the operation piece 35 in the circumferential direction, and the movable contact plate 32 is attached to the inner end of the switch button 28 so that the fixed contact plate 30 is normally opened. When the concealing body 2 is rotated in a state of concealing the mounting slit 5, the switch button 28
Is pressed by the rotation of the operation piece 35, whereby the movable contact 31 of the movable contact plate 32 and the fixed contact 2 of the fixed contact plate 30 are pushed.
9 comes into contact with each other, and a voltage can be applied between the contact terminals 6 and 7.

FIG. 16 shows a tenth embodiment of the present invention. That is, in the lamp socket of the first embodiment, a pair of contact terminals 7a,
7a, the base 75 (FIG. 28) has a pair of lamp holding pins 78, and the lamp holding pins 78 and the contact terminals 7 are provided.
a and 7a are arranged in one diameter direction. The contact terminals 7a, 7a of the embodiment come into contact with the pin-shaped central electrode 76 of the base 75, and the contact terminal 6 comes into contact with the peripheral electrode 77. This contact terminal 6 also has the same diameter direction as the contact terminal 7a. Are lined up.

According to this embodiment, the lamp 73 tilts about the lamp holding pin 78 with respect to the tilt of the lamp 73, so that the central electrode 76 and the pair of contact terminals 7a, 7a can make stable contact. . Further, when the lamp socket is used in a vehicle, the central electrode 76 of the lamp 73 vibrates in the vertical direction as shown by the arrow, but the pair of contact terminals 7a, 7a into which the central electrode 76 is fitted should be arranged horizontally. Due to
It is difficult to receive the force due to vibration, and the springs of the contact terminals 7a, 7a are not set.

An eleventh embodiment of the present invention is shown in FIG. That is, this lamp socket has the contact terminals 6a, 6a in the vicinity of the mounting slit 5 in the tenth embodiment.
Are arranged in a diameter direction orthogonal to the direction in which the lamp holding pin 78 and the contact terminals 7a, 7a are arranged. According to this embodiment, the contact terminals 6a, 6 near the mounting slit 5 are
Since a can have a large spring characteristic, the cap 75 of the lamp 73 is sandwiched by arranging them in the vertical direction, which is the vibration direction of the vehicle, so that it is easy to handle vertical movement.
To prevent vibration.

A twelfth embodiment of the present invention is shown in FIGS. That is, this lamp socket is
In the embodiment (FIGS. 10 and 11) of FIG.
Is locked to the lamp holding pin 78 by the lock portion 31
And a lock release operation tool 30 for releasing the lock portion 31, and the lock release operation tool is provided on a surface other than the opening surface of the socket body 1. In the embodiment, a pair of mounting slits 5 are formed in accordance with the pair of lamp holding pins 78, and a lock portion 31 for locking and locking the lamp holding pins 78 is provided at a position aligned with the mounting slit 5 and fitted into the mounting slit 5. The combined lamp holding pin 78 is locked.
A rear end portion of the lock portion 31 is bent into an L shape, and a bent portion thereof is rotatably attached to the socket body 1 by a shaft 32, and a return spring 33 is interposed between the tip end thereof and the socket body 1. Thus, the lock portion 31 is urged in the locking direction. The unlocking operation tool 30 is attached to the position of the return spring 33 of the lock portion 31, penetrates the rear end surface of the socket body 1, and projects outward. Reference numeral 34 is a partition wall of the socket body 1.

Therefore, the base 75 of the lamp 73 is opened 3
, The lamp holding pin 78 is attached to the mounting slit 5.
When the return spring 33 is compressed at the same time as when it is fitted to, the tip of the lock portion 31 is crossed over and locked in a retaining state. On the other hand, when the unlocking operation tool 30 is pushed against the return spring 33, the lock portion 31 pivots around the shaft 32 by the principle of lever, the lock portion 31 is separated from the lamp holding pin 78, and the lamp 73 is moved. It can be removed from the socket body 1.

According to this embodiment, the unlocking operation tool 3
The releasing operation by operating 0 and the attaching / detaching operation of the lamp 73 can be easily performed at the same time. In this respect, in the conventional example, since the lamp socket is generally integrated with the luminaire, the holding spring is provided on the lamp mounting surface side of the lamp socket in order to connect the lamp socket by holding the lamp. Others are the same as in the seventh embodiment.

A thirteenth embodiment of the present invention is shown in FIGS. That is, this lamp socket is
In the second embodiment, the unlocking operation tool 30 is provided on the rear end side of the side surface of the socket body 1. in this case,
The embodiment is the same as the twelfth embodiment except that the rear end of the lock portion 31 is not L-shaped but linear.

A fourteenth embodiment of the present invention is shown in FIGS. That is, this lamp socket is
In this embodiment, the concealing body 2 is in close contact with the back surface of the reflector 36 provided in the socket body 1. In the embodiment, a reflector 36, which is a reflector, is attached to a lamp (not shown) fixed to the body of the vehicle.
The lamp 73 penetrates the center hole 37 of the lamp 6, the flange 90 of the lamp 73 is locked to the edge of the center hole 37, and the flange 90 is detachably fixed by the lamp fixing member 91 for lamp replacement. Further, the concealing body 2 is formed into a trumpet shape having a stepped cross section by an elastic body such as rubber for waterproofing. When the lamp socket is attached to the base 75 of the lamp 73, the concealing body 2 is closely attached to the back surface of the reflecting mirror 36. are doing. Reference numeral 92 is a ring portion for positioning and fitting the collar 90.

According to this embodiment, by mounting the lamp socket on the lamp 73, it is possible to protect the high voltage portion of the lamp from waterproofing and ensure safety. Others are the same as those in the first embodiment. A fifteenth embodiment of the present invention is shown in FIGS. That is, in this lamp socket, in the fourteenth embodiment, the socket body 1 is upsized and the electronic parts 40 constituting the igniter circuit are housed inside. Others are the same as those in the 14th embodiment.

A sixteenth embodiment of the present invention is shown in FIGS. That is, this lamp socket is
In the embodiment, the concealment body 2 is the substantially ring-shaped packing 2 supported between the contact terminal 6 and the inner peripheral surface of the socket body 1. When the lamp is not mounted, the concealment body 2 is located outside the tip of the contact terminal 6. When the lamp is attached, the contact terminal 6 is pressed against the peripheral electrode 77 of the lamp 73 by being pressed by the base 75.

In the embodiment, the inner end side of the concealing body 2 is supported by the packing receiver 42 provided on the inner peripheral surface of the socket body 1. When the lamp 73 is installed, the base 75 and packing receiver 4
27 is pressed and elastically deformed as shown in FIG. 27, thereby pressing the contact terminal 6 inward in the radial direction of the socket body 1 while surrounding the contact terminal 6. The electrode 77 is strongly contacted.

According to this embodiment, the concealing member 2 can prevent the peripheral electrode 77 of the lamp 73 from being exposed, and the concealing member 2 can prevent the peripheral electrode 77 from being exposed when the lamp is mounted.
Since the peripheral electrode 77 can be easily waterproofed, the concealing body 2 is elastically deformed to increase the contact pressure between the peripheral electrode 77 and the contact terminal 6, so that loose contact can be prevented.

[0052]

According to the lamp socket of the first aspect of the present invention, since the charging portion of the contact terminal passing through the mounting slit is protected by the concealing body when the lamp is replaced, there is a risk of electric shock even when the power is on. There is no need for safety. Further, since the mounting slit is protected by the concealing body, it is possible to prevent the mounting slit and the electrode from being damaged by an external force. Furthermore, the insulation protection of the contact terminal near the mounting slit allows the lighting device to be connected to the contact terminal irrespective of the polarity of the lighting device.

According to the lamp socket of claim 2, in addition to the effect of claim 1, in claim 1, the concealing body is integrally formed with the socket body so as to cover the outside of the mounting slit. The number of parts can be reduced. According to the lamp socket of claim 3, claim 1
2. The lamp socket according to claim 1, wherein the concealing member extends substantially the entire length of the socket body in the lamp attaching / detaching direction and is projected from the socket body so as to cover the outside of the mounting slit. When the lamp is connected to the lamp, the concealing member of the lamp socket is aligned with the lamp holding pin, which facilitates mounting. Further, when the socket body is mounted by rotating with respect to the lamp, the concealing body is easily gripped, the socket body is easily rotated, and the mounting is facilitated.

According to the lamp socket of the fourth aspect, in the third aspect, the concealing body has the lead wire lead-out portion. Therefore, in addition to the effect of the third aspect, the peripheral portion of the lamp holding pin is hard to touch. It has a safer structure. According to a fifth aspect of the present invention, in the first aspect, the concealing body is movable in the lamp attaching / detaching direction with respect to the socket body, and the lamp holding pin is engaged with the attaching slit. In addition to the effect of the first aspect, the lamp holding pin is easily fitted into the mounting slit by retracting the concealing body when the lamp is mounted, so that the lamp can be easily mounted.

According to a sixth aspect of the lamp socket of the present invention, in the fifth aspect, the concealment body is a cylindrical body that is rotatably fitted in the socket body, and the concealment body is rotated in the lamp mounting direction. Since the threaded portion to be moved to the inner peripheral surface of the concealing body and the outer peripheral surface of the socket body are provided, the operation of mounting the socket body and the rotation of the concealing body are continued in addition to the effect of claim 5. Since the operation is performed in the rotation direction, the operation is easy and the operation of the concealing body is easy to understand.

According to a seventh aspect of the present invention, there is provided the lamp socket according to the fifth aspect, wherein the mounting slit has a linear shape extending in the lamp attaching / detaching direction, and the lamp holding pin is inserted into the mounting slit. In addition to the effect of claim 5, there is no movement in the rotation direction when mounting the socket body, so that the movement space required for the movement is omitted. You can Further, the lamp socket can be attached and detached without being caught by the position of the lamp holding pin.

According to the lamp socket of claim 8, in claim 5, claim 6, or claim 7, since the lamp socket has an interlock switch that operates by movement of the concealing body, claim 5, claim 6, or claim 5. In addition to the effect of item 7,
Since the interlock switch can be actuated at the same time that the concealing body is moved, the operation is easy, and the power is turned off by the interlock to further prevent electric shock.

According to a ninth aspect of the lamp socket, in the seventh aspect, the retaining means includes a lock portion that locks and locks the lamp holding pin, and a lock release operation tool that releases the lock portion. Since the unlocking operation tool is provided on a surface other than the opening surface of the socket body, in addition to the effect of claim 7, the unlocking operation and the attaching / detaching operation can be easily performed at the same time.

According to the lamp socket of the tenth aspect, in the first aspect, since the concealing member is in close contact with the back surface of the reflector, the lamp height can be improved by mounting the lamp socket on the lamp. The voltage section can be protected by waterproofing for safety. According to the lamp socket of claim 11, in the case of claim 1, the concealing body is a substantially ring-shaped packing supported between the contact terminal and an inner peripheral surface of the socket body, and in a state where the lamp is not mounted. The protrusion of the contact terminal is further outward than the tip of the contact terminal, and in the state where the lamp is attached, the contact terminal is pressed against the electrode of the lamp by being pressed by the base. Therefore, the waterproofing of the electrode can be easily performed, the contact pressure between the electrode and the contact terminal can be increased, and loose contact can be prevented.

According to a twelfth aspect of the lamp socket of the first aspect, in the first aspect, the socket body has a pair of contact terminals at a center thereof, the base has a pair of lamp holding pins, and the lamp holding pin is Since the contact terminals are arranged in one diameter direction, the central electrode and the pair of contact terminals can be stably contacted with respect to the inclination of the lamp, in addition to the effect of the first aspect. Also, when the lamp socket is used in a vehicle, the central electrode of the lamp vibrates vertically, but by arranging a pair of contact terminals that fit the central electrodes horizontally, it is difficult to receive the force due to the vibration. There is no fatigue in the spring.

According to the lamp socket of the thirteenth aspect, in the twelfth aspect, the contact terminals in the vicinity of the mounting slits are arranged in a diameter direction orthogonal to a direction in which the lamp holding pins and the contact terminals are arranged. Therefore, in addition to the effect of claim 12, since the contact terminals in the vicinity of the mounting slit can have a high spring property, the lamp base is clamped by arranging them in the vertical direction, which makes it easy to respond to vertical movement and to vibrate the lamp. It will prevent.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention with a concealing body removed.

FIG. 2 is a perspective view showing a state in which the concealing body is attached to the socket body.

FIG. 3 is a perspective view of a second embodiment.

FIG. 4 is a perspective view of a third embodiment.

FIG. 5 is a perspective view of a fourth embodiment.

FIG. 6 is a perspective view of a fifth embodiment.

FIG. 7 is a perspective view showing a state where the concealing body is moved to expose a mounting slit.

FIG. 8 is a partial cross-sectional view showing a locked state of the concealing body.

FIG. 9 is a partially cutaway perspective view of a sixth embodiment.

FIG. 10 is a perspective view of the seventh embodiment with a concealing body removed.

FIG. 11 is a half sectional side view thereof.

FIG. 12 is a perspective view of an eighth embodiment with a concealing body removed.

FIG. 13 is a partial cross-sectional view showing the interlock switch.

FIG. 14 is a perspective view of a ninth embodiment with a concealing body removed.

FIG. 15 is a partial cross-sectional view showing the interlock switch.

FIG. 16 is a front view of the tenth embodiment.

FIG. 17 is a front view of the eleventh embodiment.

FIG. 18 is a side view of the twelfth embodiment with the lamp removed.

FIG. 19 is a sectional view of the lamp socket.

FIG. 20 is a side view of the thirteenth embodiment with the lamp removed.

FIG. 21 is a sectional view of the lamp socket.

FIG. 22 is a side view of a fourteenth embodiment before a lamp is mounted.

FIG. 23 is a sectional view thereof.

FIG. 24 is a side view of a fifteenth embodiment before a lamp is mounted.

FIG. 25 is a sectional view thereof.

FIG. 26 is a sectional view of a sixteenth embodiment before a lamp is mounted.

FIG. 27 is a cross-sectional view of the state in which the lamp is mounted.

FIG. 28 is a perspective view of a conventional example with a lamp removed.

FIG. 29 is a schematic sectional view of the lamp socket.

[Explanation of symbols]

 1 Socket body 2 Concealer 3 Opening 5 Mounting slit 6,7 Contact terminal

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Haruo Nagase, 1048, Kadoma, Kadoma, Osaka Prefecture, Matsushita Electric Works, Ltd. (72) Shino Kato, 1048, Kadoma, Kadoma, Osaka Prefecture, Matsushita Electric Works, Ltd. (72) ) Inventor Hideki Hamada 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Toshiro Nakamura, 1048, Kadoma, Kadoma City, Osaka Prefecture (72) Inventor, Ryosuke Maruyama, Kadoma City, Osaka Prefecture 1048 Kadoma, Matsushita Electric Works, Ltd.

Claims (13)

[Claims] 1. A lamp socket for mounting a lamp having an electrode on a base and a pin for holding a lamp on an outer peripheral surface of the base, the opening having an opening for inserting the base, and the pin for holding the lamp being inserted. A socket body having a mounting slit at the edge of the opening and a contact terminal in contact with the electrode inside the opening; and a contact terminal provided on the socket body and located inside the mounting slit. A lamp socket having a concealing body for concealing. 2. The lamp socket according to claim 1, wherein the concealing body is integrally formed with the socket body so as to cover the outside of the mounting slit. 3. The lamp socket according to claim 1, wherein the concealing member extends over substantially the entire length of the socket body in the lamp attaching / detaching direction, and is projected from the socket body so as to cover the outside of the mounting slit. 4. The lamp socket according to claim 3, wherein the concealing body has a lead wire drawing portion. 5. The lamp according to claim 1, wherein the concealing member is movable in a lamp attaching / detaching direction with respect to the socket body, and covers the mounting slit in a state where a lamp holding pin is engaged with the mounting slit. socket. 6. The concealing body is a tubular body that is rotatably fitted in the socket body, and a screw portion for moving the concealing body in a lamp mounting direction by rotation of the concealing body is provided in the concealing body. The lamp socket according to claim 5, wherein the lamp socket is provided on a peripheral surface and an outer peripheral surface of the socket body. 7. The mounting slit has a linear shape extending in the lamp attaching / detaching direction, and has retaining means for retaining the base of the lamp with the lamp holding pin inserted in the mounting slit. The lamp socket according to 5. 8. The lamp socket according to claim 5, wherein the lamp socket has an interlock switch that operates by moving the concealing body. 9. The retaining means has a lock portion that locks and locks the lamp holding pin, and a lock release operation tool that releases the lock portion, and the lock release operation tool is other than an opening surface of the socket body. The lamp socket according to claim 7, which is provided on the surface. 10. The lamp socket according to claim 1, wherein the concealing member is in close contact with the back surface of the reflector. 11. The concealing body is a substantially ring-shaped packing supported between the contact terminal and an inner peripheral surface of the socket body, and is outside the tip of the contact terminal when the lamp is not mounted. 2. The lamp socket according to claim 1, wherein the lamp socket is protruded to the front and is pressed by the base in a mounted state to press the contact terminal against the electrode of the lamp. 12. The socket main body has a pair of contact terminals at the center thereof, the base has a pair of lamp holding pins, and the lamp holding pins and the contact terminals are arranged in one diameter direction. The lamp socket according to 1. 13. The lamp socket according to claim 12, wherein the contact terminal near the mounting slit is arranged in a diameter direction orthogonal to a direction in which the lamp holding pin and the contact terminal are arranged.