JPH0777083B2 - lighting equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a lighting fixture using a single-base fluorescent lamp.

[Background technology]

Conventionally, as a single-base fluorescent lamp, a set of four lamps 60 shown in FIG. 11 and a spherical outer tube type lamp 70 shown in FIG.
U-shaped lamp 80 in FIG. 18, twin-shaped lamp 90 in FIG. 21,
There are four flat arrangement type lamps 1 and the like shown in FIGS. The four-planar arrangement type lamp 1 is used as a surface light source.

The socket for the four-unit lamp 60 (Fig. 11) is
A bayonet-type socket 61 shown in Fig. 12 has been proposed (Application No. 60-197577). This socket 61 has a lamp pin 60b
Is a plunger type that presses against the contact piece 62 against the spring 63 (Fig. 13), and after inserting the pair of locking projections 60c of the base 60 into the groove 61a of the socket 61 as shown in Fig. 14. The structure is such that the lamp 60 is rotated by about 30 °. By this rotation, the locking projection 60c engages with the engaged portion 61b of the socket 61, and the lamp 60 is prevented from coming off.

A bayonet-type socket 71 has been proposed for the spherical exterior tube type lamp 70 shown in FIG. 16 (Japanese Utility Model Publication No. 58-48782).

The socket for the U-shaped tube lamp 80 shown in FIG.
A plug-in type socket 81 shown in FIGS. 20 and 20 has been proposed (Japanese Utility Model Publication No. 60-7179 and Japanese Utility Model Publication No. 60-7180). This is a blade receiving structure in which the lamp pin 80a is inserted between the leaf spring-shaped contact pieces 82.

For the twin type lamp 90 of FIG. 21, as shown in FIGS. 22 to 24, a plunger type socket 91 is rotatably attached to a socket base 92, and the tip of the lamp 90 is held by a lamp support metal 93. The one that has been proposed is proposed (Shokaisho 61-1)
No. 96953, Japanese Utility Model Application No. 61-196954). Lamp pin 90a is spring 9
Press against the contact piece 95 against 4.

These sockets 61, 71, 81, 91 have the following problems.

The bayonet type socket 61 is used for the lamp 60 as shown in Fig. 15.
Since it is a format that you can hold and rotate with your hand 100, you can
Twist strength is required for the lamp 60. The four-collection-type lamp 60 has four arc-shaped arc tubes, and therefore has a strong shape against twisting, and there is no problem. The spherical exterior lamp 70 is also strong against twisting. However, the four-planar arrangement lamp 1 (Figs. 25 to 28) has a weak shape against the twisting force F ₁ and bending forces F ₂ and F ₃ , and as shown in FIG. To bring in a bayonet-type socket
Insufficient strength to fit on the 61.

The plug-in type socket 81 shown in FIGS. 18 to 20 has a problem that the tip of the lamp 80 is easily inadvertently applied to a component part of a lighting fixture or the like because it is pulled out with force when the lamp 80 is detached.

The socket 91 shown in Figs. 21 to 24 is used when the lamp 90 is removed.
As shown in FIG. 23, since the lamp 90 has a tip end and is rotated around the socket base 92 as a fulcrum, the lamp 90 needs to have bending strength. Therefore, the lamp 90 is large (for example, 27
It cannot be used unless it is of W class or above). In particular,
In the four-planar arrangement type lamp 1 of FIG. 25, it is difficult to use this socket 91 because a non-uniform force is easily applied to each arc tube 1a.

In this way, all conventional sockets have problems,
Especially, in the case of the lamp 1 of the four plane arrangement type, the twisting force F ₁
It is weak against bending forces F ₂ and F ₃ , and it is necessary to have a detachable structure that does not apply such an excessive force to the lamp 1.

[Object of the Invention]

An object of the present invention is to provide a lighting fixture that allows the lamp to be attached and detached without applying undue force such as twisting or bending to the lamp.

[Disclosure of Invention]

The lighting fixture of the present invention includes a plug-in type socket having a contact piece for pressing a lamp pin protruding from the rear surface of the base of a single base fluorescent lamp provided in the main body of the lighting fixture, and to the socket side of the base of the single base fluorescent lamp. Is provided with an elastic non-return member for allowing the movement of the non-return member and for locking the mouthpiece in the reverse direction, and a release lever for unlocking the non-return member.

According to the configuration of the present invention, since the socket is of a type in which the lamp pin is inserted, when mounting the lamp, it suffices to apply a force to the lamp in a relatively strong compression direction, and it is not possible to twist or bend the lamp. It doesn't work. Further, since the cap of the lamp is locked by the elastic non-removable check member, the lamp can be held securely. When removing the lamp, since the release lever for releasing the lock of the check member is provided, it is possible to remove the lamp without forcibly pulling it. In this way, even when the lamp is attached or detached, no excessive force is applied to the lamp, so the lamp does not break.

Embodiments A first embodiment of the present invention will be described with reference to FIGS. 1 to 4. This lighting fixture is a lamp pin provided on the fixture body 3 and protruding from the rear surface of the base 2 of the single-base fluorescent lamp 1.
Insertable socket 4 having contact piece 5 (Fig. 4) against which 1c (Figs. 3 and 4) is pressed, and single-base fluorescent lamp 1
A non-return member 6 having elasticity that allows the base 2 to move toward the socket 4 side and locks the base 2 in the reverse direction; and a release lever 7 that releases the lock of the non-return member 6. It is a thing. The non-return member 6 engages with the locked projections 2b provided on both sides of the base 2. The instrument body 3 has an opening 3a on the lower surface as shown in FIG.

As shown in FIGS. 2 and 3, the non-return member 6 is rotatably supported by a support shaft 9 on a support projection 9 of the socket 4, and the elasticity is imparted in the locking direction by a wire spring 11. ing. The release lever 7 is composed of a portion integrally extended with the check member 6. The release lever 7 is pushed by a push button 8 provided in a button guide 8a (Fig. 1) formed in the instrument body 3 so as to be capable of projecting and retracting, and releases the check member 6.

As shown in FIG. 3, the socket 4 has a cover 4a into which the insertion portion 2a of the base 2 of the lamp 1 is inserted, and the cover 4a is formed with a guide groove 4b of the locked projection 2b.

FIG. 4 shows a cross section of the socket 4. An insertion hole 4d for the lamp pin 1c is provided in the socket body 4a, and a contact piece 5 biased by a spring 15 is provided therein. The contact piece 5 is formed by cutting the connecting terminal 5a that holds the power supply line 16 in a pinched state.

The lamp 1 is the one described above with reference to FIGS.
Four arc tubes 1a are projected on the base 2 in parallel with each other. The four arc tubes 1a communicate with each other at a communication portion 1b.
The cap 2 is provided with an insertion portion 2a, and locking projections 2b are provided on both sides in the width direction thereof, and a lamp pin 1c is provided on the rear surface thereof.

According to the structure of this embodiment, when the lamp 1 is mounted in the socket 4, the insertion portion 2a of the base 2 is pushed into the cover 4a of the socket 4. As a result, the locked projection 2b is guided by the guide groove.
The lamp pin 1c is inserted into the socket 4 by being guided by 4b, and the check member 6 engages with the locked projection 2b. When removing the lamp 1, the lamp 1 is pulled out while the push button 8 is being pressed. When the push button 8 is pressed, the check member 6 is unlocked, and the lamp 1 can be pulled out without the locked projection 2b being caught by the check member 6.

Although the lamp 1 is attached and detached in this manner, since the socket 4 is of a type in which the lamp pin 1c is inserted, when the lamp 1 is attached, it suffices to apply a force to the lamp 1 in a relatively strong compression direction. , Do not apply excessive force such as twisting or bending. Further, since the cap 2 of the lamp 1 is locked by the elastic and detachable check member 6, the lamp 1 can be held securely. When the lamp 1 is removed, the release lever 7 for releasing the lock of the check member 6 is provided, so that the lamp 1 can be removed without forcibly pulling it. In this way, no matter how the lamp 1 is attached or detached, no excessive force is applied to the lamp 1, so the lamp 1 does not break.

Further, since the socket 4 is of a type having the contact piece 5 against which the lamp pin 1c is pressed, it is not necessary to pull out the lamp 1 with force when removing the lamp 1. Therefore, there is no problem that the lamp 1 is accidentally collided and damaged.

FIG. 5 shows a second embodiment of the present invention. In this example, a rotating member 28 having a check member 26 and a release lever 27 is rotatably attached to a boss portion 29 of the socket 4 on the cover 4a of the socket 4. The rotating member 28 is further provided with a leaf spring portion 30 and is brought into contact with the outer surface of the socket 4. Leaf spring 30
May be formed separately from the rotating member 28.

In the case of this configuration, when the lamp 1 is mounted, the check member 26 of the socket 4 rotates like a chain line to pass the locked projection 2b of the base 2. After passing, the check member 6 engages with the locked projection 2b. When removing the lamp 1, release lever
27 is rotated in the direction of the arrow F, and the check member 6 is locked to the protruding portion 2b.
Remove from At this time, since the release lever 27 protrudes from the outer surface of the socket 4, it is easy to operate the release lever 7. Other structural effects are similar to those of the first embodiment.

6 to 8 show a third embodiment of the present invention.
In this example, the slide member 38 in which the check member 36 and the release lever 27 are integrated is attached to the guide protrusion 39 of the socket 4 by arrows M and N.
It is mounted so that it can move back and forth in any direction. Slide member 38
Is urged in the engaging direction of the check member 6 (downward in FIG. 7) by a V-shaped leaf spring 40.

In the case of this configuration, when the base 2 of the lamp 1 is pushed into the socket 4, the check member 36 escapes in the direction of the arrow M, and the locked projection 2b.
And is engaged with the locked projection 2b. When removing the lamp 1, the release lever 37 is pushed in the direction of arrow M. Other structural effects are similar to those of the first embodiment.

9 and 10 show a fourth embodiment of the present invention. In this example, a U-shaped plate spring 48 in which the check member 46 and the release lever 47 are integrally formed is fitted in the groove 4f on the outer surface of the socket 4. The non-return member 46 is a locked projection of the base 2.
Engage 2f. As shown in FIG. 9, the leaf spring 48 is further provided with an auxiliary check member 46 ', and a locked portion (not shown) that engages with the auxiliary check member 46' is formed in the socket 4. .
The auxiliary check member 46 ′ has a smaller engagement force than the check member 46.

In the case of this configuration, when the base 2 of the lamp 1 is pushed into the socket 4, the check member 46 escapes to the outside as shown by the chain line in FIG. 10, and after passing through the base 2, engages with the locked recess 2f of the base 2. To meet. Further, the auxiliary check member 46 'is also locked to the auxiliary locked portion of the socket 4. When removing the lamp 1, release lever
Bend 47 outwards. As a result, the lamp 1 can be pulled out without being caught by the check member 46. The auxiliary non-return member 46 'remains locked to the auxiliary locked portion of the base 2, but the auxiliary non-return member 46' has a weaker locking force, so that the lamp 1 is not burdened when pulled out. I don't give much. When the release lever 47 releases the lock, the auxiliary check member 46 'remains locked, so that the lamp 1 is prevented from accidentally falling. Since the release lever 47 is close to the check member 46, the release state can be seen and it is easy to operate. Further, although the tip of the release lever 47 is inclined outward, this inclination serves as a guide when the lamp 1 is mounted and is easy to enter. Other structural effects are similar to those of the first embodiment.

In each of the above-mentioned embodiments, the four flat arrangement type single base fluorescent lamps 1 are used, but the present invention can be applied to each of the other single base fluorescent lamps.

〔The invention's effect〕

Since the lighting fixture of the present invention is of a type in which the socket inserts the lamp pin, when the lamp is mounted, it is sufficient to apply a force to the lamp in a relatively strong compression direction, and it is possible to prevent twisting, bending, etc. It doesn't work. Further, since the cap of the lamp is locked by the elastic non-removable check member, the lamp can be held securely. When removing the lamp, since the release lever for releasing the lock of the check member is provided, it is possible to remove the lamp without forcibly pulling it. As described above, even when the lamp is attached or detached, the lamp is not cracked because an unreasonable force is not applied to the lamp.

[Brief description of drawings]

1 is a cross-sectional plan view of the first embodiment of the present invention, FIG. 2 is a vertical sectional side view thereof, FIG. 3 (A) is a perspective view showing the relationship between the socket and the lamp, and FIG. 3 (B). ) Is also an exploded perspective view of the socket, FIG. 4 is a partial sectional view of the socket, FIG. 5 is a perspective view of a second embodiment of the present invention, and FIG. 6 is a third embodiment of the present invention. FIG. 7 is an exploded perspective view of FIG. 7, FIG. 7 is a side view of an essential part thereof, FIG. 8 is a front view of the same socket, and FIG. 9A is a perspective view of a fourth embodiment of the present invention. ) Is a perspective view of the leaf spring, FIG. 10 is also an operation explanatory view thereof, FIG. 11 is a front view and a top view of an example of a conventional single-base fluorescent lamp, and FIG. 12 is a view of the socket. A perspective view, FIG. 13 is a front view around the contact piece of the socket, and FIG. 14 is an exploded perspective view showing the relationship between the lamp and the socket. Fig. 15 is also an illustration of its use,
Figure 16 is a front view of an example of another conventional single-ended fluorescent lamp,
Figure is a perspective view of the socket, Figure 18 is a front view of still another conventional single-base fluorescent lamp, Figure 19 is a perspective view of the socket, Figure 20 is a front view around the contact piece of the socket, twenty one
The figure shows a front view and a top view of still another conventional single-base fluorescent lamp, FIG. 22 is a perspective view of the socket, FIG. 23 is a side view of a lighting fixture using the socket, and FIG. Is also a front view around the contact piece of the socket, FIG. 25 is a front view of still another conventional single base fluorescent lamp, FIG. 26 is a side view thereof, FIG. 27 is a perspective view thereof, and FIG. Similarly, it is the usage explanatory drawing. 1 ... Lamp, 2 ... Base, 3 ... Instrument body, 4 ... Socket, 5 ... Contact piece, 6,26,36,46 ... Non-return member, 7, 2
7,37,47 …… Release lever

Claims (1)

[Claims] 1. A plug-in type socket provided on a fixture body, having a contact piece for pressing a lamp pin projecting to a rear surface of a base of a single-base fluorescent lamp, and a movement of the base of the single-base fluorescent lamp to the socket side. And a release lever that has elasticity and locks the base in a reverse direction, and a release lever that releases the lock of the check member.