JP3387276B2 - lighting equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a lighting fixture,
In particular, the present invention relates to a lighting fixture having a single-base lamp and a single-base lamp socket that is locked by rotating by inserting and twisting the single-base lamp.

[0002]

2. Description of the Related Art FIGS. 14 to 16 show a main part of a conventional lighting device (first conventional example). The lighting device includes a single-ended lamp 1 which is a lamp and a single-ended lamp which is a lamp socket. It has a gold lamp socket 2.

The single-base lamp 1 is provided with a single base 4 on the opening side of a bulb 3 formed by connecting two spaces in a tubular body, which are open at one end side, at the other end side, so as to close the opening. It is provided and configured. This base 4 has four lamp pins 5 planted in the bottom 4a, which is one end side, in the direction opposite to the protruding direction of the bulb 3, and on both sides of the side wall of the base 4 perpendicular to the protruding direction of the bulb 3. A locking projection 6 that projects in the direction is provided.

The single-base lamp socket 2 is used by being attached to an instrument body (not shown) or the like, and is provided with a recess 7a which is open at least on the side of the lamp mounting surface 2a on which the lamp is mounted. 7 and a lamp pin insertion hole 7b provided in the recess 7a of the socket body 7
A conductive plate 8 housed inside and abutting the lamp pin 5, a conductive spring 9 for urging the conductive plate 8 toward the lamp mounting surface 2a, and an electrical connection with the conductive plate 8 to connect an electric wire from the outside. And a terminal 10 to be formed.
Then, the concave portion 7a has the single-base lamp 1 inside.
Is formed so as to be rotatable around its central axis by a predetermined angle, and the peripheral wall of the recess 7a is located on the front surface side of the locking projection 6 by rotating the single-base lamp 1. A locking portion 11 is provided which abuts the locking projection 6 on the bulb 3 side and prevents the single-ended lamp 1 from coming off.

The base 4 of the single-base lamp 1 and the base 2 of the single-base lamp socket 2 of this kind are received in JIS standard C770.
9 GX10q-1A to 7A, and GY10q-1
A to 7A, and the rotation range during the attachment / detachment operation is 30 °. Since this angle has the conductive plate 8 that is always in contact with the lamp pin 5 even when the lamp socket 2 is rotated after the lamp is inserted, the single-ended lamp socket 2 is inserted into the single-ended lamp socket 2 in order to secure an insulation distance. The maximum distance between the position of any lamp pin 5 in the open state and the virtual position where the lamp pin 5, which is the closest pole to the lamp pin 5 and which has a different polarity, is located when the single-base lamp 1 is rotated 30 °, is 1.7 mm at maximum. It can be secured.

In such a lighting fixture, the single base lamp 1
Is attached to the single base lamp socket 2 as follows. That is, first, the base 4 is replaced with the single-base lamp socket 2
The lamp mounting surface 2a side in alignment with the concave portion 7a of
The lamp pin 5 is inserted into the lamp pin insertion hole 7b, brought into contact with the conductive plate 8, and the conductive spring 9 is pushed in. Next, in that state, the single-ended lamp 1 is rotated by a predetermined angle. Then, by biasing the lamp pin 5 toward the bulb 3 side by the conductive spring 9, the locking projection 6 is brought into contact with and locked by the locking portion 11, so that the single base lamp 1 is attached to the single base lamp socket 2. Hold it. At this time,
The lamp pin 5 is electrically connected while maintaining contact with the conductive plate 8 urged by the conductive spring 9.

FIG. 17 shows a main part of a conventional lighting device (second conventional example). This lighting device is a lighting device for a headlight of an automobile, and includes a lamp 1 and a lamp socket. 2 and are configured.

The lamp 1 is provided with a base 4 on one end side of a cylindrical bulb 3, and the base 4 is provided on the central axis of the bulb 3 so as to project from the bottom 4a to the side opposite to the bulb 3. And a pin-shaped central electrode 12, and an annular outer electrode 13 provided on the outer periphery of a cylindrical portion protruding so as to surround the central electrode 12. Further, on both sides of the peripheral wall on the valve 3 side with respect to the bottom portion 4a, locking projections 6 are provided that project in a direction perpendicular to the projection direction of the valve 3.

The lamp socket 2 has at least the lamp 1.
A socket body 7 provided with a recess 7a opened to the lamp mounting surface 2a side, a central receiving member 14 provided at the bottom of the recess 7a of the socket body 7 for sandwiching the central electrode 12, and a recess 7a. And an outer metal receiving member 15 that is provided on the peripheral wall of the outer electrode and contacts the outer electrode 13. Further, on the peripheral wall of the socket body 7, a notch 16 having a substantially L shape in the rotation direction of the lamp 1 is provided at a position corresponding to the locking projection 6 of the lamp 1, and the notch 16 The piece located on the front side is the locking portion 11. And
The lamp 1 is mounted in the lamp socket 2 in substantially the same manner as the first conventional example.

FIG. 18 shows a main part of a conventional lighting fixture (third conventional example). In this lighting fixture, a single base lamp 1 which is a lamp and a single base lamp socket 2 which is a lamp socket are shown. It is configured to have.

The single base lamps 1 are arranged in parallel with each other.
In order to make the space in the cylindrical body of the book a continuous space, the other end side and the one end side are alternately communicated with each other, and only one end of the valve 3 is opened.
One base 4 is provided and configured. This base 4
Has a substantially quadrangular prism-shaped protrusion 17 that protrudes in a direction opposite to the direction in which the valve 3 protrudes, which is formed on the bottom 4a on both sides of the protrusion 4 on the bottom 4a. Has two lamp pins 5 each,
It is planted to face each other across. Further, the tip of the protrusion 17 protrudes more than the tip of the lamp pin 5, and the locking protrusion 6 that protrudes in a direction substantially perpendicular to the central axis of the protrusion 17 is formed on both sides of the side wall of the protrusion 17. Is provided. Further, the base 4 is provided with misuse prevention ribs 18 at different portions depending on the lamp output.

The single base lamp socket 2 has a concave portion 7 which is open at least on the lamp mounting surface 2a side on which the lamp is mounted.
socket body 7 provided with a, and the socket body 7
Of the conductive plate that is housed in the lamp pin insertion hole 7b provided on the lamp mounting surface 2a outside the recessed portion 7a and contacts the lamp pin 5, and the one-sided cap that is installed upright on the outer periphery of the lamp mounting surface 2a. Protective wall 19 that substantially covers the base 4 of the lamp 1.
And is configured. The recess 7a is a substantially rectangular parallelepiped space into which the protrusion 17 of the single-base lamp 1 can be inserted. The recess 7a is provided on both sides in the direction perpendicular to the side where the lamp pin insertion hole 7b is provided and communicates with the space. The insertion groove 7c into which the provided locking projection 6 is inserted is provided.
In c, a locking spring 20 that laterally projects into the recess 7a and engages with the locking projection 6 formed on the projecting portion 17 of the single base lamp 1 to lock the single base lamp 1. It is provided. Further, the protective wall 19 is cut out at a position corresponding to the misuse prevention rib 18 provided on the single-base lamp 1 to form a receiving portion 19a.

In the luminaire thus constructed, the single base lamp 1 is attached to the single base lamp socket 2 in a direction perpendicular to the lamp mounting surface 2a in accordance with the misuse prevention rib 18 of the single base lamp 1 and the receiving portion 19a. By inserting the recess 7
The protruding portion 17 is inserted into a, the lamp pin 5 is inserted into the lamp pin insertion hole 7b and abuts on the conductive plate, and the locking protrusion 6 provided on the protruding portion 17 is locked to the locking spring 20. Is attached to the single-base lamp socket 2.

The single-ended lamp 1 of this type has a JI
There is also one configured by having two lamp pins 5 on the bottom part 4a defined by G24d-1 of C standard 7709 of the S standard, or 3 to 3, and in this case also, the single-ended lamp socket 2
Has a configuration similar to that described above.

[0015]

However, in the luminaire shown in the first conventional example having such a structure, the single base lamp 1 is inserted into the single base lamp socket 2 and rotationally locked. This single-base lamp socket 2 is suitable for mounting a lamp in which only the lamp pin 5 projects from the bottom 4a of the base 4 of the single-base lamp 1, and the base 4a of the base 4 is mounted in the same direction as the lamp pin 5. A lamp having a protruding portion 17 that protrudes cannot be mounted.

Also, in the lighting equipment shown in the second conventional example, the lamp 1 is inserted into the lamp socket 2 and is rotationally locked, but like the first conventional example, the lamp pin is attached to the bottom portion 4a of the base 4. A lamp having a protrusion protruding in the same direction as 5 cannot be mounted.

Further, in the lighting apparatus shown in the third conventional example, the one-base lamp 1 is inserted into the one-base lamp socket 2 and locked by the elasticity of the locking spring 20. That is, in the state where the single base lamp 1 is inserted in the single base lamp socket 2, the locking protrusions 6 provided on the protrusions 17 only sandwich the locking springs 20 from both sides. Therefore, when a force is applied to the engaging spring 20, the single-base lamp 1 is easily detached,
There is a problem that the single-base lamp 1 may come off and fall due to shock or vibration during use.

The present invention has been made in view of the above problems. An object of the present invention is to mount a lamp having a protrusion protruding in the same direction as the lamp pin on the bottom of the base and to carelessly install the lamp. It is to provide a lighting device that does not easily fall off.

[0019]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a single base lamp in which a base is provided at one end of a bulb, and a single base lamp. In a lighting fixture including a one-base lamp lamp socket that is locked by rotating by inserting a lamp from the side of the base, the one-base lamp includes a bottom of the base that is substantially perpendicular to a protruding direction of the bulb. A protrusion provided so as to protrude in a direction opposite to the protrusion direction of the valve substantially along a central axis substantially perpendicular to the bottom, and a protrusion provided at the bottom and in the same direction as the protrusion with the tip protruding. At least one lamp pin formed so as to be located closer to the bottom side than the tip of the part, and the protruding part of the single base lamp is inserted in the lamp mounting surface side in the single base lamp socket. Predetermined And a lamp pin insertion hole into which the lamp pin is inserted and which has a substantially circular arc shape and which is formed outside the concave portion and is concentric with the concave portion. A conductive plate that makes elastic contact with the lamp pin is provided , and the protrusion of the single base lamp is further provided.
If a protrusion for locking that protrudes to the side is provided on the side surface of the protrusion,
Together, on the side wall of the recess of the single base lamp socket,
By rotating the single-ended lamp, the locking protrusion
Abut on the valve side, and pull out in the valve direction.
It is characterized in that a locking portion for preventing the above is provided .

According to a second aspect of the luminaire, in the luminaire according to the first aspect, the misuse preventing ribs 18 are formed on the base 4 of the single-base lamp 1 at different portions depending on the lamp output. Then, the incompatible single base lamp 1 is mounted on the outer peripheral portion of the lamp mounting surface 2a of the single base lamp socket 2 so as to face the peripheral wall of the base 4 and selectively abut against the misuse prevention rib 18. It is characterized in that a protective wall 19 for restricting this is provided.

[0021] In the lighting apparatus according to claim 3, wherein
The lighting fixture according to claim 1 or 2, wherein the piece is
The protrusion 17 of the base lamp 1 is formed into a substantially rectangular column shape,
The number of lamp pins 5 is four, and the lamp pins 5 are on the bottom 4a.
There are two runs on each side of the protrusion 17.
The pins 5 are arranged so as to face each other with the protrusion 17 interposed therebetween.
It is characterized by having done.

[0022] In the lighting fixture according to claim 4, wherein
Item 4. The lighting fixture according to Item 3, wherein the four lamp pins 5 are provided.
However, each is on the bottom 4a and the short side is approximately 8 mm and is long.
When placed on the apex of a virtual rectangle with sides of approximately 23 mm,
In addition, the one-ended lamp socket 2 can be attached / detached to / from the lamp.
When the rotation angle of the single-base lamp 1 when rotating is 17 ° or more
It is characterized by being set at 23 ° or less .

[0023] In the lighting fixture of claim 5, wherein
The luminaire according to any one of claims 1 to 4.
In the above, the single base lamp 1 is
With the ket 2 mounted,
It is characterized in that it is biased in three directions .

[0024]

According to the lighting equipment of claim 6,
A luminaire according to one of claims 1 to 5.
In the above, the locking projection 6 is the bottom portion 4 of the base 4.
From the side a toward the tip of the protrusion 17, the protrusion 17
From the inside of the protrusion 17 so that the amount of protrusion from the side to the side increases.
It is provided with an inclined surface 6a having a predetermined angle with respect to the axis.
It is formed on the inclined surface 6a of the locking portion 11 and
Abutting contacting portion having an inclination corresponding to the inclined surface 6a
It is characterized in that the surface 11a is formed.

According to the lighting equipment of claim 7,
A luminaire according to any one of claims 1 to 6.
In the one-ended lamp lamp socket 2, the conductive plate is
8 sandwiches the lamp pin 5 from the direction perpendicular to the rotation direction.
The holding piece is formed by including a holding piece 8a to be held.
8a is in the lamp pin insertion hole 7b, and the lamp pin 5 is
It is possible to move more than the size that can move in the direction perpendicular to the rotation direction.
It is characterized by being formed into Noh.

[0027]

1 to 6 show a first embodiment of a lighting fixture according to the present invention, which comprises a single base lamp 1 and a single base lamp socket 2. Is configured.

The single base lamps 1 are arranged in parallel with each other.
The other end side and one end side are alternately communicated with each other so that the space in the cylindrical body of the book forms a space having a length of about six continuous cylindrical bodies, and only the both ends are formed. The valve 3 is formed so as to be opened, and the filament is arranged in the opening of the valve 3 and one cap 4 is provided so as to close the opening. The base 4 has a bottom 4 having a surface substantially perpendicular to the protruding direction of the valve 3.
a is provided on one end side, and a substantially quadrangular prism-shaped protrusion 17 that protrudes in a direction substantially opposite to the protrusion direction of the valve 3 is formed substantially at the center of the bottom 4a of the bottom 4a. Two lamp pins 5 are planted on both sides of the protruding portion 17 so as to face each other with the protruding portion 17 interposed therebetween. Further, the tip of the protruding portion 17 projects more than the tip of the lamp pin 5, and on both side surfaces of the side peripheral wall of the protruding portion 17 where the lamp pin 5 is not provided, a direction substantially perpendicular to the central axis of the protruding portion 17 is formed. Locking protrusions 6 projecting to the respective sides are provided. In addition, the base 4 is provided with misuse prevention ribs 18 at different portions depending on the lamp output.

The base 4 of such a single-base lamp 1 and the receiving of the single-base lamp socket 2 are IEC 600 6
1 standard (IEC Publication 600 61-1 7004-78) G
(X) 24q-1, G (X) 24q-2, G (X) 24
q-3 and G (X) 24q-4 .

The single base lamp socket 2 comprises a socket body 7, a conductive terminal 8, a fixed spring 21, and a cover 22. The socket body 7 has an opening substantially in the center of the lamp mounting surface 2a on which the lamp is mounted, and the cover 22 is mounted from the back side by the screw 23 so that the projection 17 of the single base lamp 1 is inserted into the opening. Thus, a concave portion 7a that is rotatable by a predetermined angle of about 18 ° is formed. Further, the an outer recess 7a concentric with the circumference of the recess 7a, provided as arcuate lamp pins insertion holes 7b is paired across two not One recess 7a, the lamp pins insertion holes 7b Inside each of them, a holding piece 8a which is connected to the external lead wire 24 and holds the lamp pin 5 from the direction perpendicular to the rotation direction of the single-ended base lamp 1.
A conductive plate 8 including is stored.

A protective wall 19 that substantially covers the base 4 of the single-base lamp 1 is provided on the outer periphery of the lamp mounting surface 2a outside the lamp pin insertion hole 7b.
A notch is provided at a position corresponding to the misuse prevention rib 18 provided on the single base lamp 1, and the misuse prevention rib 18 can be rotated by a predetermined angle as the single base lamp 1 rotates. It is said that. Further, in the concave portion 7a, on both sides opposite to the side where the lamp pin insertion hole 7b is provided, insertion grooves 7c into which the locking projections 6 of the single base lamp 1 are inserted are communicated with the internal space. A space in which the locking projection 6 is rotatable is formed on the cover 22 side, which is the rotation direction side of the insertion groove 7c when the single-base lamp 1 is mounted, and the lamp mounting of the space is performed. The surface 2a side is in contact with the locking projection 6 and serves as a locking portion 11 for locking the single-base lamp 1.

The fixed spring 21 is provided with cut-and-raised parts 21b in the same direction from both sides at a substantially central portion of the plate-like body 21a.
The plate-like body 21a is provided with mounting legs 21c that are bent so as to form an obtuse angle with the plate-like body 21a, and convex portions 21d are provided so as to project to the outer surface of the mounting leg 21c. is there. Then, the fixed spring 21 is centered on the central axis of the concave portion 7a so that the plate-shaped body 21a abuts the cover 22 in the concave portion 7a and the one-base lamp 1 is rotated. It is housed so that it can be rotated by a predetermined angle and does not fall off on the lamp mounting surface 2a side. Further, a recess 7d with which the convex portion 21d engages is provided on the side wall of the concave portion 7a at a position facing the convex portion 21d at the time of starting and completing the mounting of the single-base lamp 1.

In the luminaire thus constructed, the single-ended lamp 1 is attached to the single-ended lamp socket 2 in a direction perpendicular to the lamp mounting surface 2a so that the rib 18 for preventing misuse of the single-ended lamp 1 is aligned with the receiving portion 19a. By inserting the recess 7
The protrusion 17 is inserted into a and the lamp pin 5 is inserted into the lamp pin insertion hole 7b. Then, by further pressing the fixing spring 21 and twisting the single-base lamp 1, the single-pin lamp 1 is rotated together with the fixing spring 21 about the central axis along the protruding direction of the bulb 3, whereby the lamp pin 5 becomes a conductive plate. 8 is clamped by a clamping piece 8a,
The convex portion 21d of the fixed spring 21 engages with the recess 7d provided in the socket body 7 to generate a click feeling, and if the rotation is stopped in this state, the single-ended lamp 1 becomes the single-ended lamp socket 2
Be attached to. In addition, at this time, the convex portion 21d has the concave portion 7d.
By engaging with, the single-base lamp 1 does not accidentally rotate in the opposite direction.

FIG. 5 shows that the single-ended lamp 1 and the single-ended lamp socket 2 are both of the above-mentioned G of IEC 600 61 standard.
(X) 24q-3, which are suitable examples, that is, when the locking projection 6 of the base 4 is aligned with the storage groove 7c of the socket body 7, misuse prevention This shows an example in which the rib 18 is inside the receiving portion 19a and is rotatable by a predetermined angle. The broken line 18 in the figure indicates the position of the misuse prevention rib 18 when the single-base lamp 1 is inserted into the single-base lamp socket 2. Further, FIG. 6 shows that the single base lamp 1 is the same as the above-mentioned IEC 6
00 61 standard G (X) 24q-3, and the single-ended lamp socket 2 is G (X) 24q-1.
This is an example in which the single-base lamp 1 and the single-base lamp socket 2 are incompatible with each other, and the misuse prevention rib 18 has the protection wall 19
It shows an example that cannot be mounted by riding on.

With this structure, in the lighting apparatus of this embodiment, the protrusion 17 that protrudes from the lamp pin 5 to the bottom 4a of the base 4 of the single-base lamp 1 is used.
The lamp having the lamp can be rotationally locked by inserting the lamp into the single-base lamp socket 2 and twisting it. Further, the locking projection 6 provided on the projecting portion 17 of the base 4 is provided on the side wall of the recess 7a of the socket body 7. Since it is engaged with and fixed to the locking portion 11, the single-base lamp 1 is strong against the pulling-out force of the single-base lamp 1, and the single-base lamp 1 is unlikely to drop out accidentally even if shock, vibration or the like is applied. Further, since the protection wall 19 prevents the single-base lamp 1 that is incompatible with the lighting device or the like built into the lighting fixture from being attached, misuse can be prevented and the fixed spring 2 can be prevented.
The protrusion 21d of No. 1 engages with the recess 7d of the socket body 7 to generate a click feeling, and when the single-ended base lamp 1 is attached or detached, the completion of the work can be easily known.

FIG. 7 and FIG. 8 show a second embodiment of the luminaire of the present invention.
And shows the embodiment, the first embodiment <br/> differs, the rotation angle of the single capped lamp 1, the other is configured as in the first embodiment ing.

The dimension between the two lamp pins 5 adjacent to each other in the single-base lamp 1 is 8 mm, and in general, the distance between different poles is 0.
Since it is desirable to provide an insulating wall of 8 mm or more, the minimum angle of rotation of the single-ended lamp 1 is, as shown in FIG. 7, one lamp pin 5 and a virtual position where the other lamp pin 5 reaches when rotated. And a distance of 0.8 mm is secured between them and 23.44 ° or less, that is, about 23 ° or less. Further, the insertion groove 7c communicating with the recess 7a of the single base lamp socket 2 has a minimum width of 5 mm in the above-mentioned IEC 600 61 standard.
At this time, as shown in FIG. 8, the minimum angle of rotation of the single-ended lamp 1 is 17 ° or more so that the locking projection 6 overlaps the locking part 11 by more than half in the rotation direction. To be done.

[0038] Since the thus configured present embodiment forms
In luminaire in state, in addition to the effect of the lighting fixture shown in the form <br/> of the first embodiment, if the rotation angle of the single base lamp 1 and 17 ° or more, projections 6 for locking Locking part 1
More than half overlap with 1 to make sure that it will not come off.
If the rotation angle is set to 23 ° or less, the difference between the adjacent poles of 0.
Insulation wall of 8mm or more can be formed, and safety can be secured.

FIG. 9 and FIG. 10 shows a third embodiment of the luminaire of the present invention, the first form of embodiment
State is different from, the locking portion 11 of the single capped lamp socket 2
The other configurations are similar to those of the first embodiment.

The locking portion 11 of the single base lamp socket 2 is
It is formed so as to come into surface contact with the locking projection 6 provided on the projection 17 of the single-base lamp 1. That is, the locking projection 6 of the single-base lamp 1 has a protruding portion so that the protruding amount from the side wall of the protruding portion 17 to the side increases from the bottom 4 a side of the base 4 toward the tip side of the protruding portion 17. It is formed with an inclined surface 6a forming an angle of 35 °, which is a predetermined angle with respect to the central axis of 17, so that the locking portion 11 of the single base lamp socket 2 also contacts the inclined surface 6a. The contact surface 11a is formed to have an angle of 35 ° which is a predetermined inclination angle corresponding to the inclination.

The single-base lamp 1 has a self-weight of about 100.
g, when the valve 3 is mounted in the horizontal direction, the locking projection 6 is mounted on the upper side,
At this time, the fixed spring 21 urges the protruding portion 17 toward the valve 3 with a force of about 1 to 2 kgf.

[0042] Since the thus configured present embodiment forms
In luminaire in state, in addition to the effect of the lighting fixture shown in the form <br/> of the first embodiment, portion abutting to the engaging portion 11 of the single capped lamp locking projections 6 of 1, Protrusion 17
Even if it has an inclined surface that is angled with respect to the central axis of the
The single-base lamp 1 is biased toward the bulb 3 by the fixed spring 21, and the inclined surface 6a and the contact surface 11a are held in surface contact with each other, so that the locking projection 6 is provided in the direction in which the locking projection 6 is provided. The tilt and rattling of the single-base lamp 1 can be reduced, and even when the single-base lamp 1 is horizontally mounted with the side on which the locking projection 6 is provided facing upward, the hanging of the single-base lamp 1 due to its own weight can be reduced.

[0043] In the present embodiment, the inclined surface 6
a and the contact surface 11a are inclined by a predetermined angle of 35
However, the inclination angle is not limited to 35 ° described above, and may be any number.

[0044] FIGS. 11 to 13 shows a fourth embodiment of the luminaire of the present invention, the first embodiment
Form is different from a gap dimension between the peripheral wall of the lamp pin insertion holes 7b of the conductive plate 8 and the other has the same configuration as the embodiment <br/> of the first embodiment.

The conductive plate 8 is provided with a sandwiching piece 8a for sandwiching the lamp pin 5, which means that the copper wire extending from the filament of the single-base lamp 1 to the lamp pin 5 is
Copper-coated steel wire (CP wire) is often used, and among them, the tip thereof protrudes from the tip of the lamp pin 5, and when electricity is applied through this, in addition to the large resistance, steel Since rust is likely to occur on the cut surface of the wire, the contact resistance may increase, resulting in increased heat generation, which may eventually lead to failure such as non-conductivity or burnout. Therefore, the lamp pin 5 is clamped to ensure a reliable connection. It is designed to be taken.

Then, the conductive plate 8 is Y shown in FIG.
In the −Y cross-sectional direction, that is, in the direction substantially along the rotation direction of the lamp pin 5, the tip of the conductive plate 8 is moved in the attachment / detachment direction by the rotation of the lamp pin 5, and therefore, in order to keep this movement in an appropriate range, The gaps A and B are formed as narrow as possible. Further, in the direction perpendicular to the rotation direction of the lamp pin 5, that is, in the direction perpendicular to the sandwiching piece 8a, the gaps C and D are formed to be wider than the movable amount of the lamp pin 5 in order to absorb variations in the pitch of the lamp pin 5. ing.

That is, the pitch variation of the lamp pins 5 is ΔP, and the maximum movement amount in the direction orthogonal to the rotation of the lamp pins 5 when the lamp is held in the socket is ΔE,
When ΔE is assumed to move symmetrically with respect to the center, the gaps C and D
Is set so as to satisfy the relationship of C (or D)> (ΔP + ΔE / 2).

[0048] Since the thus configured present embodiment forms
In luminaire in state, in addition to the effect of the lighting fixture shown in the form <br/> of the first embodiment, movement by backlash or the like of the pitch variation or the conductive plate 8 of the lamp pins 5 of the conductive plate 8 The single-base lamp 1 can be securely mounted without damaging the elastic range of the conductive plate 8.

In the first to third embodiments, the conductive plate 8 is described as being provided with the sandwiching piece 8a, but the present invention is not limited to this, and the tip of the lamp pin 5 abuts. A conductive plate formed as described above may be used. Further, in each of the above-described embodiments, the base 4
To the IEC 600 61 standard (IEC Publication 600 61-1
7004-78) to G (X) 24q-1, G (X) 24q-
Although the lamp pin 5 is defined as having four lamp pins 5 defined as 2, G (X) 24q-3 and G (X) 24q-4 , the present invention is not limited to this, and the above-mentioned IEC 600 6 is used.
1 standard and JIS standard C7709 G24d-1, G2
4 d -2, such as those having two to lamp pins which is defined as G24 d -3, may be any as long as it one or more lamp pins are provided. When the number of lamp pins is one, the other electrode is provided at or around the tip of the protrusion.

Since the present invention is constructed as described above, the present invention
According to the first aspect of the present invention, even if the lamp has a protruding portion that protrudes in the same direction as the lamp pin at the bottom of the base of the single-base lamp, the rotary member is inserted into the single-base lamp socket and twisted. It can be stopped and can be strongly held against external force. Also, the single-base lamp is biased toward the bulb.
The one-sided lamp is securely held to protect it from shocks and vibrations.
On the other hand, it will become more difficult to fall off.

According to the invention of claim 2, claim 1
In addition to the effects of the invention described, when an incompatible single-ended lamp is used, the misuse prevention rib rides over the protection wall and the lamp cannot be mounted, and the incompatible single-ended lamp for the lighting device etc. built into the luminaire. It prevents the gold lamp from being attached and prevents misuse. In the invention according to claim 3,
1 or In addition to the effect of the invention according to claim 2,
A protrusion protruding in the same direction as the lamp pin on the bottom of the lamp base.
It is equipped with a projecting part and two lathes are sandwiched across the projecting part.
Even if the lamp is equipped with a pump pin,
Rotation locking by inserting into the lamp socket and twisting
it can.

According to the invention of claim 4 , claim 3
In addition to the effects of the invention described above, if the rotation angle of the single-ended lamp is set to 17 ° or more, the single-ended lamp is securely held in the single-ended lamp socket, and if the rotation angle is set to 23 ° or less, it is adjacent. Since it is possible to form an insulating wall of 0.8 mm or more between the different poles, safety can be secured.

[0053] In the invention of claim 5, claim
Effect of the invention described in one of claims 1 to 4
In addition to the above, if you rotate the single-ended lamp,
The locking projection on the side of the recess of the socket body
Since it is engaged and fixed to the provided locking part,
Lamp can be easily installed, and the single-ended lamp can be pulled out.
Strong against force, carelessly put in place even if shock, vibration, etc. are applied.
The base lamp will not come off easily.

[0054]

According to the invention of claim 6,
Effect of the invention described in one of claims 1 to 5
In addition to abut on the locking part of the locking projection of the single-ended lamp
The part to be cut forms a slope with an angle to the central axis of the protrusion.
Even if you have one, make sure that
It can be locked, and the inclined surface of the single-ended lamp and the single-ended lamp socket
Since the contact surface of the contact is held in surface contact, the locking projection
The tilt and rattling of the single-ended lamp in the direction
It can be made less, and the protrusion for locking the single-ended lamp is provided.
Even if the lamp is mounted horizontally with the
The amount of sagging due to weight can be reduced.

According to the invention of claim 7,
Effect of the invention described in one of claims 1 to 6
In addition to variations in the pitch of the lamp pins on the conductive plate and
Movement due to rattling of the electric plate impairs the elastic range of the conductive plate.
You can mount the single-ended lamp securely without wobbling.

[Brief description of drawings]

Is a perspective view showing an important part of a first embodiment of the luminaire of the present invention; FIG.

FIG. 2 is an exploded perspective view of the above single-ended lamp socket.

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

FIG. 4 is a partially sectional front view of the above.

FIG. 5 is a plan view of an essential part of the above.

FIG. 6 is a plan view showing a different state of the main part of the same.

7 is a schematic diagram showing a main part of a second embodiment of the luminaire of the present invention.

FIG. 8 is a plan view of the main part of the above.

9 is a partial cross-sectional front view showing an essential part of a third embodiment of the luminaire of the present invention.

FIG. 10 is a plan view of an essential part of the above.

11 is a plan view including a partially enlarged view showing an essential portion of a fourth embodiment of the luminaire of the present invention.

FIG. 12 is a side view including the YY sectional view in FIG. 11 above.

13 is a front view including a cross-sectional view taken along line XX in FIG. 11 above.

FIG. 14 is a perspective view showing a main part of a conventional lighting fixture (first conventional example).

FIG. 15 is a partially sectional front view of the above.

FIG. 16 is a plan view of an essential part of the above.

FIG. 17 is a view showing a main part of a conventional lighting fixture (second conventional example), (a) is a perspective view of a socket, and (b) is a perspective view of a lamp viewed from different angles.

FIG. 18 is a perspective view showing a main part of a conventional lighting fixture (third conventional example).

[Explanation of symbols]

1 One-sided lamp 2 Single base lamp socket 2a Lamp mounting surface 3 valves 4 mouthpiece 4a bottom 5 lamp pins 6 Locking protrusion 6a inclined surface 7a recess 7b Lamp pin insertion hole 8 Conductive plate 8a clamping piece 11 Locking part 11a contact surface 17 Projection 18 Misuse prevention rib 19 protective wall

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masaaki Isoda 1048 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd. (56) References JP-A-4-51478 (JP, A) Actual Development Sho 63-47586 ( JP, U) S. 39-25763 (JP, Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) H01R 33/08 H01R 33/97

Claims (7)

(57) [Claims] 1. A lighting fixture comprising: a one-base lamp having a base provided on one end side of a bulb; and a one-base lamp socket that is locked by rotating by inserting the one-base lamp from the side of the base and twisting the lamp. The single base lamp has a bottom portion of the base that is substantially perpendicular to the protruding direction of the bulb.
A protrusion provided so as to protrude in a direction opposite to the protrusion direction of the valve along a central axis substantially perpendicular to the bottom; And at least one lamp pin formed so as to be located closer to the bottom side than the tip of the protrusion,
The protrusion of the single base lamp is inserted into the single base lamp socket on the lamp mounting surface side to form a concave portion rotatable by a predetermined angle, and the concave portion is outside the concave portion and on a circumference concentric with the concave portion. provided with a lamp pins insertion hole into which the lamp pins a substantially arc shape is inserted, is disposed a conductive plate which elastically contact with the lamp pins into the lamp pins insertion hole, further
On the side surface of the protruding portion of the single base lamp, a member protruding laterally
A single-pronged lamp socket with a stop projection
On the side wall of the recess of the
From the valve side, contact the locking projection with
The lighting fixture is characterized in that a locking portion is provided to prevent the valve from coming off in the direction of the bulb . 2. A misuse prevention rib is projectingly formed on a portion of the base of the single base lamp depending on a lamp output, the outer peripheral portion of the lamp mounting surface of the single base lamp socket facing the peripheral wall of the base. The lighting fixture according to claim 1, further comprising: a protection wall that selectively abuts against the misuse prevention rib and restricts mounting of an incompatible single-base lamp. 3. The single-base lamp has a protrusion formed in a substantially rectangular column shape, the number of the lamp pins is four, and two lamp pins are provided on the bottom and on both sides of the protrusion. The lighting fixture according to claim 1 or 2, wherein the lighting fixtures are arranged so as to face each other with the projecting portion interposed therebetween. 4. The four lamp pins are respectively disposed on the bottom portion and on the vertices of a virtual rectangle having a short side of about 8 mm and a long side of about 23 mm, and the single-ended lamp socket has The lighting device according to claim 3, wherein a rotation angle of the single-base lamp when the lamp is attached / detached is set to 17 ° or more and 23 ° or less. 5. The one-sided lamp according to claim 1, wherein the one-sided lamp is urged from the base in the bulb direction in a state of being mounted in the one-sided lamp socket. A luminaire according to one of the claims. 6. The locking protrusion is on the bottom side of the base.
To the tip side of the protrusion from the protrusion to the side
To increase the protrusion amount, set a predetermined value with respect to the central axis of the protrusion.
Is formed with an inclined surface having an angle of
The portion of the locking portion that contacts the inclined surface corresponds to the inclined surface.
A contact surface having an inclined surface is formed.
The lighting fixture according to one of claims 1 to 5 . 7. The single-base lampholder has the conductive material.
A plate holds the lamp pin from the direction perpendicular to the rotation direction.
Is formed with a holding piece that
Inside the pin insertion hole, the lamp pin is
It is formed so that it can move more than the size that allows it to move in the vertical direction.
One of the claims 1 to 6, characterized in that
Lighting equipment according to the requirements .