JPH07114081B2 - lighting equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a lighting fixture that uses ring-shaped fluorescent lamps having different W numbers.

[Prior Art] FIG. 10 shows a lighting device disclosed in, for example, Japanese Patent Laid-Open No. 61-195503. In the figure, (1) is a fixture main body having a built-in lighting device, which is composed of a case (3) having a flange (2) on the outer periphery and a reflector (4). (5) is the collar part (2)
And a lamp socket attached to the main body of the fixture (6) for mounting a large W lamp connecting part (7) and a small W under the large W lamp connecting part (7).
The lamp connecting part (8) is integrally provided. (9) is a large W
It is a base engaging portion integrally formed with each of the lamp connecting portion (7) and the small W lamp connecting portion (8). (10) is a lamp support spring attached to the fixture body (1) on the side opposite to the lamp socket (6), and (11) is a large W lamp connecting portion (7) and is connected to the lamp support spring (10). Supported large W lamp, (12) is also small W lamp connection (8)
It is a small W lamp that is connected to and held by.

The conventional luminaire is configured as described above, the luminaire main body is made common, and the shape of the shade (5) to be combined is changed to diversify the type. And since this kind of lighting equipment tends to be more bright in recent years,
In order to effectively irradiate a wide area, the lower surface is opened as shown in the figure, and the shade of the shape that expands downward is increasing.

[Problems to be Solved by the Invention] In the conventional lighting fixture as described above, the lamp socket (6) is integrally provided with the large W lamp connection portion (7) and the small W lamp connection portion (8), and therefore, the lamp. Although there is an advantage that the target W number of the socket (6) can be easily distinguished, the shade (5) and the large W lamp (11) are close to each other and the shade (5) and the small W are small.
Since the lamp (12) is widely separated, only the light of the large W lamp (11) appears strongly on the surface of the shade (5), and the shade (5) does not have a uniform brightness. Further, since the outer diameter of the portion corresponding to the large W lamp (11) in the shade (5) is made larger than the large W lamp (11) by a certain size, the lower surface of the shade (5) has a larger outer diameter dimension. However, there was a problem that the whole shade (5) was unnecessarily large.

The present invention has been made in order to solve such a problem, and has a light distribution characteristic of easily illuminating a wide range in which the number of lamp socket objects W is easy to distinguish, and a shade with uniform brightness. An object of the present invention is to provide a luminaire that can reduce the size of a glow and a shade, can be easily attached to and detached from a lamp, can securely hold the lamp, and has a clean design on the lower surface.

[Means for Solving the Problems] A lighting fixture according to the present invention is provided with a fixture main body having a reflecting plate on a lower surface, and an upper end portion fixed to the fixture main body and a lower end portion extending obliquely outward. Lamp socket, and a large concave W provided outward at the tip of the lamp socket
A lamp cap engaging portion, a concave small W lamp cap engaging portion which is located at an intermediate portion of the lamp socket and is provided outward or inward, and a lamp connection provided in each of the cap engaging portions. Portion, large W and small W ring-shaped fluorescent lamps connected to the respective lamp connecting portions while being held by the base engaging portion, and a shade attached to the fixture body and having a shape expanding downward. It is equipped with and.

A notch for inserting the lamp socket is provided in a peripheral portion of the reflector, and a cover portion for closing the notch is integrally formed with the lamp socket.

A lamp holding spring for pressing the lamp base to the lamp connecting portion is attached to the base engaging portion of the large W lamp.

A lamp holding spring for pressing the lamp base to the lamp connecting portion is attached to the base engaging portion of the small W lamp.

[Operation] In the lighting device configured as described above, the large W lamp connecting portion and the small W lamp connecting portion are integrally provided in the lamp socket, and they are close to each other.
It is easy to distinguish the numbers. Further, since the large W lamp is located below the small W lamp and the shade surrounding the small W lamp has a shape that widens downward, it is not necessary to separate the large W lamp and the small W lamp from each other. .
Further, the outer dimensions of the lower surface of the shade are larger than the large W lamp by a certain size and become smaller as going upward. Also,
Since the base engaging portion of the large W lamp connecting portion and the small W lamp connecting portion are connected by the connecting portion, the width of the lamp socket is approximately the same as the lamp diameter plus the width of the connecting portion. In addition, in the case where the reflector is provided with a notch for inserting the lamp socket and the lamp socket is provided with a notch cover part, the lamp socket does not get in the way when the reflector is assembled to the case, Is closed by the notch cover. Further, the small W lamp holding spring provided on the upper portion of the large W lamp connecting portion and the large W lamp holding spring provided on the lower portion surely hold the lamp elastically.

[Embodiment] FIGS. 1 to 6 show an embodiment of the present invention.
(1) to (3) are the same as the conventional one. In (4), a reflector is used to make the lamp as close to each other as possible so that the outer circumference of the lamp is inclined in order to miniaturize the lighting fixture. (5) is a shade placed on the collar portion (2) and spreads downward as in the conventional case, but the cross section is not a straight line but a curved line. (6)
Is a lamp socket fixed to the case (3), and the large W lamp connecting portion (7) is located below the small W lamp connecting portion (8). The large W lamp connecting portion (7) and the small W lamp connecting portion (8) each have a contact piece (13) built therein corresponding to a base pin insertion hole that faces obliquely downward.
(9) is a base engaging portion. (10) is a support spring in which the small W lamp support portion is provided above and the large W lamp support portion is provided below. (11) and (12) are the same as the conventional ones, in this case, 32W and 40W ring fluorescent lamps. (14) passes through the inside of the small W lamp (12), and the connecting portion (15) for connecting the base engaging portion (9) of the large W lamp connecting portion (7) and the small W lamp connecting portion (8) is formed. Internal wiring connected to the contact piece (13) of the small W lamp connecting portion (7), passing through the connecting portion (14) and connected to the contact piece (13) of the large W lamp connecting portion (8). Together with (15), it is led out of the lamp socket (6) near the base. (16) is a spring locking protrusion that is formed so as to project above the small W lamp connecting part (7), and has a partition wall (17) in the center, locking grooves (18) on both sides of the partition wall (17), and locking grooves ( A locking step (19) is provided on the upper part of (18). (20) is a small W lamp holding spring, a base portion (21), an engagement notch (22) at the center of the base portion (21), and a locking claw (23) bent upward on both sides of the engagement notch (22). have. (24) is a rising portion that obliquely rises from the base portion, and (25) is a holding portion formed by bending the tip of the rising portion (24). In the small W lamp holding spring (20), the base (21) is inserted into the locking groove (18) and the partition wall is engaged with the cutout (22).
The locking claw (23) is locked to the locking step (19) and locked to the locking projection (16). (25) is an L-shaped spring locking projection formed by projecting two inside the base engaging section (9) following the large W lamp connecting section (7), and (26) is a spring locking projection on the tip side. The locking step portions are formed on both sides of the raised portion (25). (2
A large W lamp holding spring 7 is composed of a base portion (28), and a holding portion (29) formed by bending from the base portion (28). Base (2
8) The engaging hole (30) is formed in the center, the holding portions (29) are formed on both sides, and the locking claws (31) bent in the opposite direction are formed.
Reference numeral (32) is a mounting portion provided above the small W lamp connecting portion (8), and has an L-shaped positioning protrusion (33) and a positioning protrusion (3).
4) A nut (35) is provided on each side of the positioning protrusion (33) to engage each protrusion (33) (34) with the case (3),
It is fixed by screwing a screw into the nut (35) from the back of the case (3). Incidentally, (38) is a lamp mounting space formed by opening the side opposite to the connecting portion (14). Then, when the large W lamp holding spring (27) engages the engaging hole (30) with the spring locking projection (25) on the tip side and pushes it in, the tip of the base (28) projects inside the spring locking projection. The spring engaging protrusion (25) on the tip side engages with the edge of the engaging hole (30) and the engaging step (26) engages the engaging claw (31). It is stopped and fixed in the amplifier socket (6).

Next, a lamp mounting method will be described. First, the small W lamp holding spring (2) is passed through the base of the small W lamp (12) from the outside of the lamp socket (6) through the lamp mounting space (38).
(0) is pressed and attached, and the base pin (not shown) is connected to the contact piece (13). In this state, the small W lamp holding spring (20) is in pressure contact with the base portion. Then, the opposite side is supported by the support spring (10). Next, the large W lamp (11) is attached to the large W lamp connecting portion (7) while expanding the large W lamp holding spring (27) from the outside of the lamp socket (6), and the base pin is attached to the contact piece ( 13) Connect to. Then, the opposite side is supported by the support spring (10). When removing the lamp, reverse the installation procedure and first remove the large W lamp (11) and then the small W lamp (12).

In the luminaire configured as described above, the small W lamp connection part (8) and the large W lamp connection part (7) are integrally provided,
Moreover, since the distance from the center of the appliance body (1) is completely different, the two can be easily distinguished from each other, and the number of lamps W is not mistakenly connected. Also, the large W lamp (11) is replaced by the small W lamp (1
It is located on the lower side of 2), and since the shade (5) has a shape that spreads downward, it has a large W
Since the distance between the lamp (11) and the small W lamp (12) is approximately the same, the shade (5) shines uniformly, uneven brightness is not possible, and the light reflected by the shade (5) is wide. Since the light is emitted from the opening, it is possible to effectively brighten a wide range. Further, since the connecting portion (14) is positioned inside the small W lamp (12) and the large W lamp connecting portion (7) and the base engaging portion (9) of the small W lamp connecting portion (8) are connected, The socket width is about the sum of the lamp diameter and the width of the connecting part (14), so it looks neat when viewed from below and is aesthetically pleasing. Also, the connecting part (14) is shaded and shade ( 5) It does not come out on the surface, and the small W lamp (12) base part can be attached and detached by operating in a substantially horizontal direction from the outside of the lamp socket (6). Short the distance of the large W lamp connection (7),
That is, the lamp socket can be shortened. Also, a small W lamp holding spring (20) and a large W lamp holding spring (2
7) are attached by the spring locking protrusions (16) and (2
5) All you have to do is insert it in the part. After the lamp is attached, the small W lamp holding spring (20) presses the base of the small W lamp (12) against the small W lamp connecting portion (8), and the large W lamp holding spring (27) turns the large W lamp. The cap of (11) is pressed against the large W lamp connecting portion (7) to prevent the connection from loosening.

FIGS. 7 and 8 show an embodiment in which the reflector plate (4) of the instrument body (1) is larger than the small W lamp (12). This is used when the fixture body (1) cannot be made small due to the size of the built-in lighting device or when the reflector (4) is made large to improve the reflection efficiency. Small W
A vane-shaped notch cover (36) is integrally formed outward from the upper part of the lamp connection part (8), and a notch (37) for inserting the lamp socket (6) into the reflector (4) is extended to the outer periphery. It is a complete cutout. Lamp socket (6)
Is fixed to the case (3) and the reflector (4) is attached to the notch (3
Fix the lamp socket (6) to the case (3) by inserting it into 7). Then, cover the remaining portion of the notch (37) filled with the lamp socket (6) with the notch cover (36).
Block with. Since the notch (37) of the reflection plate (4) is completely cut out to the outer periphery, it suffices to move the reflection plate (4) unilaterally, which facilitates the assembling and at the same time as the device body (1) in the assembled state. Since there are no unnecessary holes, it is preferable for safety and aesthetics.

FIG. 9 shows that the connecting portion (14) is arranged on the outside of the small W lamp (12) and between the large W lamp connecting portion (7) and the base engaging portion (9) of the small W lamp connecting portion (8). The lamp installation space (3
8) is formed. The small W lamp (12) can be attached / detached from the inside of the lamp socket (6) in the lamp mounting space (3
8) through. In this embodiment, since the large W lamp connecting portion (7) does not interfere when the small W lamp (12) is attached and detached, the small W lamp and the large W lamp can be attached and detached.

[Effect] Since the present invention is configured as described above, it is possible to hold two ring-shaped fluorescent lamps at the tip portion and the middle portion of the lamp socket, which simplifies the structure as a lamp socket component and increases W By arranging the lamp below the small W lamp, not only the outer dimensions of the shade can be reduced, but also the light unevenness of the shade is reduced, and a wide space can be effectively illuminated.

Further, in the case where the base engaging portion for the small W lamp is arranged outside the lamp socket, the design of the lower surface is neat, the shade of the lamp socket does not appear at all, and the socket dimension can be shortened.

Further, in the case where the base engaging portion for the small W lamp is arranged inside the lamp socket, it is possible to attach / detach to / from the lamp socket from either of the lamps even if the large W lamp is arranged below. is there.

Furthermore, even if the reflector is made larger than the diameter of the small W lamp in order to increase the reflection efficiency, the assembly is easy and the safety and aesthetics are excellent.

Further, since the lamp is securely held by the lamp connecting portion, the looseness of the connection between the lamp and the lamp socket can be prevented.

[Brief description of drawings]

1 to 6 show an embodiment of the present invention. FIG. 1 is a sectional view, FIG. 2 is a front view of a lamp socket, and FIG.
FIG. 4 is a front view showing the small W lamp holding spring portion, FIG. 4 is a side view showing the small W lamp holding spring of FIG. 3 taken away from the direction A, and FIG. 5 is a perspective view showing the small W lamp holding spring. , Sixth
FIG. 7 is an exploded perspective view showing a W-lamp holding spring portion. FIGS. 7 and 8 show another embodiment of the present invention. FIG. 7 is a sectional view and FIG. 8 shows an assembling method of a lamp socket portion. It is a side view shown. FIG. 9 is a sectional view showing another embodiment of the present invention. FIG. 10 is a cross-sectional view showing a conventional lighting fixture. In the figure, (1) is an instrument main body, (3) is a case,
(4) a reflector, (5) a shade, (6) a lamp socket, (7) a large W lamp connecting part, (8) a small W lamp connecting part, (9) a base engaging part, ( 10) is a lamp support spring, (11) is a large W lamp, (12) is a small W lamp, (14)
Is a connecting part, (20) is a small W lamp holding spring, (27) is a large W
It is a lamp holding spring. In the drawings, the same reference numerals indicate the same or corresponding parts.

Front page continuation (72) Inventor Yuji Fukudome 5-1-1, Ofuna, Kamakura-shi, Kanagawa Mitsubishi Electric Corporation Ofuna Works (72) Inventor Masanori Mu, 5-1-1, Ofuna, Kamakura-shi, Kanagawa Mitsubishi Electric Corporation Company Ofuna Works (72) Inventor Shingo Naganuma 1-1 1-1 Ofuna, Kamakura City, Kanagawa Mitsubishi Electric Co., Ltd. Ofuna Works (56) Reference JP 61-195503 (JP, A) Actual development Sho 60- 136411 (JP, U)

Claims (4)

[Claims] 1. An instrument main body having a reflection plate on the lower surface, a lamp socket having an upper end fixed to the instrument main body and a lower end extending obliquely outward, and a tip end of the lamp socket. A concave large W lamp cap engaging portion provided outward, a concave small W lamp cap engaging portion provided at an intermediate portion of the lamp socket facing outward or inward, and each of these caps. A lamp connecting portion provided on each of the engaging portions, each large W and small W ring-shaped fluorescent lamp connected to each lamp connecting portion while being held by the base engaging portion, and attached to the fixture body. A luminaire, comprising: a shade having a shape that widens downward. 2. A luminaire according to claim 1, wherein a notch for inserting the lamp socket is provided in a peripheral portion of the reflection plate, and a cover portion for closing the notch is integrally formed with the lamp socket. . 3. The luminaire according to claim 1, wherein a lamp holding spring for pressing the lamp base to the lamp connecting portion is attached to the base engaging portion of the large W lamp. 4. The luminaire according to claim 1, wherein a lamp holding spring for pressing the lamp base to the lamp connecting portion is attached to the base engaging portion of the small W lamp.