JP3341557B2 - One-way fluorescent light socket - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a one-sided fluorescent lamp socket.

[0002]

2. Description of the Related Art FIGS. 11 to 14 show a conventional one-piece fluorescent lamp socket (first conventional example). It is mounted by stopping, and mainly has a socket body 2 and a contact 3.

In the single-base fluorescent lamp 1 mounted on the single-base fluorescent lamp socket, a bulb 4b is provided upright on the upper surface 4a of the base 4, and on the lower surface 4c side in a direction opposite to the direction in which the bulb 4b projects. Four lamp pins 4d are planted.
Further, on both sides of the side peripheral wall of the base 4, locking stoppers 4 e are provided which protrude in a direction perpendicular to the direction in which the bulb 4 b protrudes, and are provided on the side walls of the base 4 at different positions according to the lamp rating. Use prevention groove 4f is provided.

The socket body 2 is made of resin and has a recess 2a which is opened on the surface on which the lamp is mounted, and the bottom 2b of the recess 2a has a lamp pin insertion hole 2c.
Is provided. A contact 3 formed of a conductive member and urged toward the front side of the socket body 2 by a spring (not shown) is accommodated in the back of the lamp pin insertion hole 2c. The recess 2a of the socket body 2 is formed such that the base 4 of the single-base fluorescent lamp 1 can rotate around a central axis thereof by a predetermined angle,
On the peripheral wall of the recess 2a, there is provided an insertion groove 2d, which communicates with the recess 2a and in which the locking portion 4e for retaining the one-base fluorescent lamp 1 is inserted from the lamp mounting surface side and is rotatable. The front surface side of the insertion groove 2d on the rotation end side when the lamp is mounted is a locking portion 2e which comes into contact with the locking portion 4e for retaining to prevent the single base fluorescent lamp 1 from being removed. The side wall of the recess 2a is provided with an erroneous use preventing protrusion 2f projecting inward of the dent 2a. Therefore, the erroneous use prevention groove 4f of the single base fluorescent lamp 1 is rotated by the base 4. In this case, the width of the protrusion 2f is large enough to avoid the rotation of the misuse prevention protrusion 2f.

FIG. 15 shows another conventional one-base fluorescent lamp socket (second conventional example). This one-base fluorescent lamp socket has a single base with a base 4 different from the first conventional example. It has a structure in which the fluorescent lamp 1 is inserted and locked, and mainly has a socket body 2 and a contact.

The base 4 of the one-base fluorescent lamp 1 has a bulb 4b protruding from an upper surface 4a, and a substantially quadrangular prism-like projection 4g projecting substantially in the center of the lower surface 4c in a direction opposite to the direction in which the bulb 4b protrudes. is formed, in the circumferential direction of the projecting portion 4g even on the lower surface of the die 4 4c, it is implanted to two not a One lamp pins 4d, each of which face each other across the protruding portion 4g. The tip of the projection 4g projects beyond the tip of the lamp pin 4d. On both sides of the side peripheral wall of the projection 4g, a retaining lock projecting in a direction substantially perpendicular to the central axis of the projection 4g. A part 4e is provided. Furthermore, base 4
On the peripheral side surface, a distinguishing projection 4h is provided at a different portion depending on the lamp output.

The socket body 2 has a housing recess 2 into which the projection 4g of the one-base fluorescent lamp 1 is inserted on the side where the lamp is mounted.
In addition, a lamp pin insertion hole 2c is provided on the outer surface side of the housing recess 2g, and a contact formed of a conductive member is housed behind the lamp pin insertion hole 2c. The storage recess 2g is provided on the side wall of the storage recess 2g.
And an insertion groove 2d through which the retaining portion 4e for retaining the one-piece fluorescent lamp 1 is inserted.
Locking spring 2 for locking retaining portion 4e
h is provided. Further, a partition wall 2k is formed on the outer periphery of the storage recess 2g on the lamp mounting surface side so as to substantially oppose the side wall of the mounted base 4, and the partition wall 2k is used for distinguishing the single base fluorescent lamp 1. Receiving groove 2 avoiding projection 4h
m is provided. Then, the one-base fluorescent lamp 1 is inserted into the one-base fluorescent lamp socket in accordance with the groove 2m to receive the distinguishing projection 4h of the base 4, so that the retaining portion 4e is locked by the locking spring 2h. It is attached.

[0008]

However, in the single-base fluorescent lamp socket shown in the first conventional example having such a structure, the single-base fluorescent lamp 1 is rotated by the base 4 of the single-base fluorescent lamp 1. It is necessary to provide an erroneous use prevention groove 4f so as to avoid the erroneous use prevention protrusion 2f provided on the socket body 2 when the socket 4 is used. Since it is larger than the width dimension of the portion 2f, in order to reliably prevent erroneous use,
Can not increase the number of combinations of single base fluorescent lamp socket and single base fluorescent lamp 1, the rated speed of the single base fluorescent lamp 1 has a problem that it is difficult to correspond to the case where the <br/> increased .

In the single-base fluorescent lamp socket shown in the second conventional example, the base 4 of the single-base fluorescent lamp 1 is inserted into the single-base fluorescent lamp socket, and the single-base fluorescent lamp 1 is locked by the locking spring 2.
h, that is, in the state where the single base fluorescent lamp 1 is inserted into the single base fluorescent lamp socket, at the part of the retaining locking part 4e provided on the protruding part 4g. Since it is only sandwiched from both sides by the locking spring 2h, the locking spring 2h
When force is applied to the portion, there is a problem that the one-base fluorescent lamp 1 is likely to come off and fall off.

The inventors of the present invention have proposed the method shown in FIGS.
As shown in FIG. 7, a one-piece fluorescent lamp socket having a socket body 2, a contact 3, and a fixed spring (not shown) has been invented and proposed earlier.

The socket body 2 is made of resin,
A storage recess 2g is provided substantially at the center of the lamp mounting surface, and an arc-shaped lamp pin insertion hole 2c in which the contact 3 is stored is provided outside the storage recess 2g.
Is provided with a substantially L-shaped insertion groove 2d, which is rotatably inserted into the side wall of the storage recess 2g so as to be inserted into the storage recess 2g from the lamp mounting surface side so that the locking portion 4e for retaining the one-base fluorescent lamp 1 is inserted. The front surface of the insertion groove 2d on the rotation ending side when the lamp is mounted is in contact with the retaining portion 4e for retaining, and serves as a retaining portion 2e for preventing the single-base fluorescent lamp 1 from being removed. . Further, a partition wall 2k is formed on the outer periphery of the storage recess 2g on the lamp mounting surface side so as to substantially oppose the side wall of the mounted base 4, and the single base fluorescent lamp 1 is rotated on the partition wall 2k. At this time, a receiving groove 2m having a width dimension d1 that avoids the distinctive projection 4h is provided. Then, the one-base fluorescent lamp 1 is inserted into the one-base fluorescent lamp socket in accordance with the receiving groove 4m of the base 4 so as to be aligned with the groove 2m, and is rotated about the lamp axis so that the retaining portion 4e for retaining is prevented. It is mounted by being moved in the insertion groove 2d and locked by the locking portion 2e.

However, also in the single-base fluorescent lamp socket configured as described above, it is necessary to provide a receiving groove 2m on the socket body 2 side for avoiding rotation of the distinguishing projection 4h provided on the single-base fluorescent lamp 1. For this reason, the area required on the socket body 2 side becomes large, and the number of combinations of the single-base fluorescent lamp socket and the single-base fluorescent lamp 1 that can prevent misuse as in the first conventional example cannot be increased. There was a problem. In particular, as shown in FIG. 18, in order to prevent erroneous use, two distinctive projections 4h are provided on both sides of the protrusion 4g on the peripheral side surface of the base 4 of the single base fluorescent lamp 1. In this case, however, in this case, the width dimension d2 of the receiving groove 2m required to avoid the rotating distinctive projection 4h becomes too large, and the single-base fluorescent lamp 1 having another rating is used. Since there is a possibility that the lamp can be mounted, as the rated number of the single base fluorescent lamp 1 increases, it may become difficult to cope with the increase.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a one-piece fluorescent lamp socket in which a one-piece fluorescent lamp is rotatably mounted. An object of the present invention is to provide a single-ended fluorescent lamp socket in which the area in the rotational direction required for preventing misuse between the socket and the socket is reduced, and even if the variety of single-ended fluorescent lamps increases, misuse prevention can be easily handled.

[0014]

The present invention solves the above-mentioned problems.
a base 4 provided with a plurality of lamp pins 4d projecting in the opposite direction to the bulb 4b and having a plurality of lamp pins 4d projecting in a direction opposite to the bulb 4b on the lower surface 4c. At the approximate center, a retaining portion 4e is provided on the side wall to protrude, and a protruding portion 4g whose tip protrudes beyond the lamp pin 4d is provided at a different position on the peripheral side surface of the base 4 according to the rated output. Projection for distinction (4
h) is provided with a socket body 2 which is rotated by inserting and twisting the one-base fluorescent lamp 1 and a plurality of contacts housed in the socket body 2 and brought into contact with the lamp pins 4d for conduction. 3, the socket body 2 is provided with a housing recess 2g in which the projection 4g is housed and a lamp pin insertion hole 2c facing the contactor 3, and the socket body 2 On the side where the single-base fluorescent lamp 1 is mounted, the base 4
And a rotor 5 having a partition wall 2k in which a receiving groove 2m is formed, which is substantially opposed to the peripheral side wall of the valve 4b, and in which a receiving groove 2m is formed.
The rotor 5 is mounted on the socket body in a plane perpendicular to the socket body.
2 is rotatable .

According to the second aspect of the present invention, the first aspect is provided.
The fluorescent lamp socket according to claim 1, wherein the rotor 5
Inside the partition 2k, a base contact surface 2n that substantially abuts the lower surface 4c of the base 4 when the single base fluorescent lamp 1 is mounted is provided integrally with the partition 2k, and the base contact surface 2n is provided.
A small hole 5a through which the lamp pin 4d is inserted is provided at a position substantially opposite to the lamp pin insertion hole 2c.

According to the third aspect of the present invention, there is provided the first aspect.
In the one-piece fluorescent lamp socket described above, when the one-piece fluorescent lamp 1 is mounted, a base contact surface 2n that substantially abuts on the lower surface 4c of the base 4 is provided integrally with the socket body 2. It is assumed that.

According to a fourth aspect of the present invention, in the one-piece fluorescent lamp socket according to any one of the first to third aspects, the distance between the socket body 2 and the rotor 5 is increased. When the mounting of the single-base fluorescent lamp 1 is completed, a mounting feeling generating means 6 is provided which generates a mounting feeling indicating that the mounting of the single-base fluorescent lamp 1 is completed by the rotation of the rotor 5. . In addition,
In the invention according to claim 5, the valve 4b is provided on the upper surface 4a.
And a lower surface 4c in a direction opposite to the valve 4b.
A base 4 provided with a plurality of lamp pins 4d protruding from
Provided on the lower surface 4c of the base 4 to be locked to the side wall for retaining.
A part 4e is protruded and the tip is the same as the lamp pin 4d.
A protruding portion 4g is provided on the peripheral side surface of the base 4,
Differential projections (4h) are provided at different positions according to the rated output.
By inserting and twisting the one-sided fluorescent lamp 1
A socket body 2 to be rotationally locked;
It is housed and abuts on the lamp pin 4d for conduction.
And a plurality of contacts 3 to be taken.
In the socket, the socket body 2 is provided with the protrusion 4
run facing storage contact 2g and contact 3
A socket pin 2c, and the socket body 2
Of the discrimination projection (4)
h) the rotor 5 having the projection contact surface to be contacted
Characterized in that it is provided rotatably with respect to the socket body 2.
Is what you do.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 5 show a first embodiment of a one-piece fluorescent lamp socket according to the present invention.
The one-base fluorescent lamp socket is equipped with the same lamp as the one-base fluorescent lamp 1 shown in FIG. 15, and mainly includes a socket body 2, a contact 3, a rotor 5, a fixed spring 7,
And a cover 8.

The socket body 2 is made of a resin having an insulating property, and the projection 4g of the single-base fluorescent lamp 1 is inserted into a substantially center of the front side of the lamp mounting surface and can be rotated by a predetermined angle. The lamp mounting surface, which is an outer surface side of the storage recess 2g, includes a storage recess 2g and a substantially arc-shaped lamp pin insertion hole 2c.
Are provided so as to face each other with the storage recess 2g interposed therebetween. The storage recess 2g is provided on the side wall of the storage recess 2g.
g, a substantially L-shaped insertion groove 2d is provided, into which a retaining locking portion 4e of the one-base fluorescent lamp 1 is inserted to be rotatable by a predetermined angle. The rear side, which is the front side on the rotation end side when the lamp is mounted, is a locking portion 2e which comes into contact with the locking portion 4e for retaining to prevent the single-base fluorescent lamp 1 from being removed. Further, near the peripheral end on the lamp mounting surface side, which is the front side, the shape is substantially arc-shaped in plan view so as to oppose the storage recess 2g, and the cross section thereof has a width that is deeper than the front side. A widely-located rotor locking groove 2p is formed, and a positioning hole used for positioning the rotor 5 and the socket body 2 is located on the lamp mounting surface side of the socket body 2 and near one of the rotor locking grooves 2p. 2q is formed. In the figure, reference numeral 2r denotes a socket mounting hole for mounting the socket to a lighting fixture or the like.

The contact 3 is formed of a conductive member, is housed on the rear side of the lamp pin insertion hole 2c of the socket body 2 and on the rotation end side when the lamp is mounted, and is inserted into the lamp pin insertion hole 2c. It has a holding piece 3a for holding the side of the rotated lamp pin 4d for conduction, and a quick-connecting terminal portion 3b for connecting an external electric wire 9 provided on the side opposite to the holding piece 3a. It is formed with.

The rotor 5 is made of a resin having an insulating property, and is provided at a position substantially opposite to the storage recess 2g and the insertion groove 2d of the socket body 2 at a substantially central portion, including a retaining portion 4e including a retaining portion 4e. A plate-shaped rotor base 5c provided with an opening 5b having a shape substantially equal to the cross-sectional shape of 4g, a partition wall 2k provided near the upper surface side peripheral end of the rotor base 5c, and a lower surface of the rotor base 5c. The rotor locking claw 5d that is provided and engages with the rotor locking groove 2p to rotatably lock the rotor 5 with the socket body 2, and a resin spring 5e for positioning the rotor 5 with respect to the socket body 2 are integrally formed. It is formed and configured. The upper surface of the rotor base 5c and the inner side of the partition wall 2k are used as a base contact surface 2n which is substantially in contact with the lower surface 4c of the base 4 of the single base fluorescent lamp 1, and the lamp pin insertion hole 2c of the base contact surface 2n. A small hole 5a through which the lamp pin 4d is inserted is formed in the opposing portion, and a receiving groove 2m into which the distinguishing projection 4h of the single-ended fluorescent lamp 1 can enter is provided in the partition wall 2k, The width d4 of the receiving groove 2m in the rotation direction of the base 4 is slightly larger than the width d3 of the distinguishing projection 4h. In the figure, reference numeral 5f denotes a through hole facing the socket mounting hole 2r provided in the socket body 2.

The fixed spring 7 is disposed on the bottom side of the housing recess 2g of the socket body 2 and rotates together with the protrusion 4g of the single-base fluorescent lamp 1, thereby urging the protrusion 4g to the front side to remove it. The locking portion 4e is pressed against and held by the locking portion 2e, and a portion facing the side wall of the storage recess 2g of the fixed spring 7 is provided with a protrusion 7a, and the protrusion 7a is provided on the storage recess 2g. By engaging with the click groove 2 s provided on the side wall, a mounting feeling for notifying the completion of the mounting of the single base fluorescent lamp 1 can be obtained. Also, the cover 8
It is made of an insulating resin and is formed on the socket body 2 so that the contact 3 and the fixed spring 7 can be held at predetermined positions. After these are housed, they are arranged on the back side of the socket body 2. The socket body 2 with the mounting screws 10
It is attached to.

In the one-piece fluorescent lamp socket configured as described above, the one-piece fluorescent lamp 1 is mounted by inserting and rotating the distinguishing projection 4h of the one-piece fluorescent lamp 1 in accordance with the receiving groove 2m of the rotor 5. The opening 5b of the rotor 5
In a state where the projecting portion 4g is inserted into, and distinguishing protrusion 4h
Only the one-piece fluorescent lamp 1 that matches the receiving groove 2m , that is, the one-base fluorescent lamp 1 rated for the socket can be inserted into the small hole 5a provided in the rotor base 5c, and the insertion can be completed. When rotated in a state where insertion is completed the single base fluorescent lamp 1 around a lamp axis, with distinction protrusion 4h abuts laterally on the partition wall 2k, the resin spring 5e comes out from the positioning holes 2q sliding The rotor 5 is rotated. Then, the lamp pin 4d is sandwiched between the contacts 3, and the stopper locking portion 4e is locked by the locking portion 2e, so that the single base fluorescent lamp 1 is mounted.

With such a configuration, in the one- piece fluorescent lamp socket of the present embodiment, the width of the distinguishing projection 4h of the one- piece fluorescent lamp 1 and the width of the receiving groove 2m of the rotor 5 are made substantially the same. can minimum necessary, it is possible to create many combinations of grooves receiving and distinguishing protrusion 4h the misuse can be prevented 2m, it is increased types of single base fluorescent lamp 1 rated number of lamps is increased It is easy to take measures to prevent misuse. Further, since the opening 5b of the rotor base 5c of the rotor 5 has substantially the same shape as the projection 4g when the lamp is inserted, the positioning of the base 4 in the rotation direction is easy, and the mounting of the lamp is easy. Moreover,
It is possible to cope with prevention of erroneous use only by replacing the rotor 5 by sharing the socket body 2 side for lamps having different ratings, so that manufacturing costs can be reduced. Furthermore, when the lamp is not mounted, the base contact surface exists on the front side of the contact 3, so that it is easy to secure insulation performance.

FIGS. 6 and 7 show a second embodiment of the single-ended fluorescent lamp socket according to the present invention.
This embodiment is different from the first embodiment in that the positioning holes are not provided in the socket body 2 and the rotor 5 is the same as the first embodiment.

The rotor 5 is made of a resin having an insulating property, and has a rotor base 5c formed in a narrow annular shape.
Partition wall 2k erected on the upper surface side of the rotor base 5c
And a rotor locking claw 5d, which is erected on the lower surface side of the rotor base 5c, engages with the rotor locking groove 2p, and rotatably locks the rotor 5 to the socket body 2 and is integrally formed. I have. The partition 2k is provided with a receiving groove 2m that avoids the distinguishing projection 4h of the one-base fluorescent lamp 1, and the width dimension d4 of the receiving groove 2m taken in the rotation direction of the base 4 is different from the distinguishing projection. The width is slightly wider than the width d3 of the portion 4h. Therefore, the front surface of the socket body 2 is a base contact surface 2n that substantially contacts the lower surface 4c of the base 4 of the single base fluorescent lamp 1.

With such a configuration, in the single-ended fluorescent lamp socket according to the present embodiment, in addition to the effect of the first embodiment, the area of the rotor base 5c is reduced, so that the rotor 5 And the area of the contact surface of the socket body 2 is reduced, and the weight of the rotor 5 itself is also reduced. When the rotor 5 rotates, the frictional resistance between the rotor 5 and the socket body 2 decreases, and the lamp rotates. Not only is it easier to mount the one-piece fluorescent lamp 1, but also the rotor 5 is easily rotated, so that the feeling of mounting can be emphasized and the completion of mounting can be easily recognized.

FIGS. 8 to 10 show a third embodiment of the single-ended fluorescent lamp socket according to the present invention. The difference from the second embodiment is that the socket body 2 and the rotor 5 are different from each other. The point where the mounting feeling generating means 6 is provided on the contacting surface side and the convex portion 7a that generates the mounting feeling of the fixed spring 7 are eliminated, so that the fixed spring 7 does not rotate when the single base fluorescent lamp 1 is mounted. The other configuration is the same as that of the second embodiment except that it is housed in the socket body 2.

The mounting feeling generating means 6 includes a feeling generating spring 5k formed by providing a notch 5g outside the partition 2k of the rotor base 5c of the rotor 5 and a convex portion 5h on the lower surface, and a socket body 2 Feel generating grooves 2t respectively provided at the rotation start position and the rotation end position on the front side of the base and facing the convex portion 5h by the rotation of the base 4.
It is composed of Then, when the rotor 5 rotates together with the rotation of the base 4, the convex portion 5h of the touch generating spring 5k passes over the side wall of the touch generating groove 2t from the touch generating groove 2t on the rotation start position side and the rotation end position side. Is configured to generate a wearing feeling by engaging with the feeling generating groove 2t.

With this configuration, in the single-ended fluorescent lamp socket according to the present embodiment, in addition to the effects of the second embodiment, the single-ended fluorescent lamp socket is provided on the rotor 5 as the mounting feeling generating means 6. There is no difference in the surface hardness between the convex portion 5h and the touch generating groove 2t provided in the socket body 2, and the mounting feeling is caused by friction between the resins having no difference in the surface hardness between the convex portion 5h and the touch generating groove 2t. Therefore, there is little possibility that one member of the convex portion 5h and the touch generating groove 2t is worn unevenly, and the mounting feeling (click feeling) is sharply increased by repeatedly attaching and detaching the one-sided fluorescent lamp 1. It is hard to cause a drop and has excellent stability of clicking feeling.

In each of the above-described embodiments, the contact 3 which is a conductive terminal of the socket to which the lamp pin 4d comes into contact and conducts is illustrated by holding the lamp pin 4d from the side. The present invention is not limited to this, but may be a butt type in which the contact is brought into contact with the tip of the lamp pin to establish conduction. In addition, 2m of receiving groove is one-piece fluorescent
Any space can be used as long as the distinctive projection 4h of the lamp 1 can be fitted.
It is not limited to the groove shape as shown in FIG. Sa
In addition, the partition wall 2k necessary for forming the receiving groove 2m is erroneously formed.
Incorrectly so that the single-ended fluorescent lamp with
Can prevent the intrusion of the protruding part for distinguishing one-sided fluorescent lamp
It is sufficient if it is provided at a position where
It is not necessary to be provided substantially all around.

[0032]

According to the first aspect of the present invention, the width of the protrusion for distinguishing the single-ended fluorescent lamp and the width of the receiving groove of the socket body are set to be the minimum necessary. It is possible to make many combinations of distinguishing protrusions and receiving grooves that can prevent misuse, so it is easy to prevent misuse even if the number of lamps increases and the number of types increases. Can be. In addition, since the opening of the rotor has substantially the same shape as the protruding portion when the lamp is inserted, positioning in the rotation direction of the base is facilitated and mounting of the lamp is facilitated. Furthermore, for lamps having different ratings, it is possible to cope with prevention of erroneous use only by replacing the rotor while sharing the socket body side, so that manufacturing costs can be reduced.

[0033] According to the second aspect of the present invention, the first aspect is provided.
In addition to the effects of the described invention, when the lamp is not mounted, the base contact surface exists so as to cover the front side of the contact, and it is easy to secure the insulation performance.

According to the third aspect of the present invention, there is provided the first aspect.
In addition to the effects of the described invention, the area of contact between the rotor and the socket body is reduced, the weight of the rotor itself is reduced, and when the rotor rotates, the frictional resistance between the rotor and the socket body is reduced. The rotation of the gold fluorescent lamp is facilitated, and the mounting of the one-sided fluorescent lamp is not only easy, but also the rotor is easily rotated, so that the feeling of mounting can be emphasized and the completion of mounting can be easily recognized.

According to a fourth aspect of the present invention, in addition to the effect of the first aspect of the present invention, a mounting feeling generating means is provided between the rotor and the socket body. Since the friction between the rotor and the socket body, which have no difference in surface hardness, creates a feeling of mounting, there is little risk of uneven wear of one member, and repeated mounting and dismounting of one-sided fluorescent lamps As a result, the wearing feeling (click feeling) is hardly sharply reduced, and the sustaining stability is excellent.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a one-piece fluorescent lamp socket according to the present invention.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a perspective view showing a state in which a part of the main part is cut away.

4A and 4B show a lamp mounting procedure of the above lamp, wherein FIG. 4A is a plan view of an inserted state, and FIG.

5 (a) is a front view showing the movement of a resin spring, and FIG. 5 (b) is a cross-sectional view showing the movement of a fixed spring.

FIG. 6 is an exploded perspective view showing a second embodiment of the single-ended fluorescent lamp socket of the present invention.

FIGS. 7A and 7B show a lamp mounting procedure according to the embodiment, wherein FIG. 7A is a plan view of an inserted state, and FIG.

FIG. 8 is an exploded perspective view showing a third embodiment of the single-base fluorescent lamp socket of the present invention.

9A and 9B show a lamp mounting procedure of the above lamp, wherein FIG. 9A is a plan view of an inserted state, and FIG. 9B is a plan view of a mounted state.

FIG. 10 is a sectional view taken along the line BB in FIG.

FIG. 11 is a perspective view showing a conventional one-piece fluorescent lamp socket (first conventional example).

12A and 12B show a base of a lamp mounted on the socket, wherein FIG. 12A is a front view, FIG. 12B is a bottom view, and FIG. 12C is a side view.

FIG. 13 is a plan view showing a main part of the above.

FIG. 14 is a sectional view taken along the line AA in FIG.

FIG. 15 is a perspective view showing another conventional single-capped fluorescent lamp socket (second conventional example).

FIG. 16 is a perspective view showing a one-piece fluorescent lamp socket proposed by the present inventors previously.

FIG. 17 is a plan view of the above.

FIG. 18 is a plan view in consideration of mounting lamps having different caps on the socket.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 One-piece fluorescent lamp 2 Socket main body 2c Lamp pin insertion hole 2g Storage recess 2k Partition wall 2m Receiving groove 2n Cap contact surface 3 Contact 4 Cap 4a Upper surface 4b Bulb 4c Lower surface 4d Lamp pin 4e Locking portion for retaining 4g Projection 4h Projection part 5 Rotor 6 Mounting feeling generating means

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H01R 33/08 H01R 33/97

Claims (5)

(57) [Claims] 1. A base provided with a plurality of lamp pins protruding from an upper surface and having a plurality of lamp pins protruding in a direction opposite to the bulb on a lower surface, and on a lower surface of the base and substantially at the center of the plurality of lamp pins. A locking portion is provided on the side wall, and a protrusion is provided at the tip of the locking pin.The protrusion protrudes beyond the lamp pin, and a distinguishing projection is provided on a peripheral side surface of the base at a different position according to a rated output. A socket body that is rotated and locked by inserting and twisting a single base fluorescent lamp,
In a single-ended fluorescent lamp socket comprising a plurality of contacts housed in the socket body and brought into contact with the lamp pins to establish conduction, the socket body includes a housing recess in which the protrusion is housed, and A partition wall provided with a lamp pin insertion hole facing the contact, and a receiving groove formed on the side of the socket body on which the one-base fluorescent lamp is mounted, substantially opposite to a peripheral side wall of the base and into which the distinguishing projection is inserted; Provided with a rotor having an axis around the axis of the valve.
The rotor is mounted in the socket in a plane perpendicular to the axial direction.
A one-piece fluorescent lamp socket characterized by being rotatable with respect to the main body . 2. A base abutting surface substantially abutting on a lower surface of the base when the single base fluorescent lamp is mounted, inside the partition of the rotor, and a base abutting surface of the base abutment surface is provided. 2. The single-capped fluorescent lamp socket according to claim 1, wherein a small hole through which the lamp pin is inserted is provided at a position substantially opposed to the lamp pin insertion hole. 3. The base according to claim 1, wherein a base contact surface which is substantially in contact with a lower surface of the base when the fluorescent base is mounted is provided integrally with the socket body. Fluorescent light socket. 4. When the mounting of the one-base fluorescent lamp is completed between the socket body and the rotor, the rotation of the rotor generates a mounting feeling indicating that the mounting of the one-base fluorescent lamp is completed. 4. The single-ended fluorescent lamp socket according to claim 1, further comprising means. 5. A base provided with a plurality of lamp pins protruding from an upper surface and having a plurality of lamp pins protruding in a direction opposite to the bulb on a lower surface, and a retaining portion on a side wall on a lower surface of the base. Is provided with a protruding portion, the tip of which protrudes beyond the lamp pin, and by inserting and twisting a single-base fluorescent lamp having a distinguishing protrusion at a different position on the peripheral side surface of the base according to the rated output. In a one-piece fluorescent lamp socket comprising: a socket body to be rotationally locked; and a plurality of contacts housed in the socket body and brought into contact with the lamp pins to conduct electricity, the projecting portion is provided on the socket body. And a lamp pin insertion hole facing the contact, and a protrusion for contacting the distinguishing protrusion on the side of the socket body on which the single-ended fluorescent lamp is mounted. A single-ended fluorescent lamp socket, wherein a rotor having a contact surface is provided rotatably with respect to the socket body.