JP2002140918A - Illuminating equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide illuminating equipment capable of improving assembly workability and reducing cost while maintaining airtightness. SOLUTION: This illuminating equipment is provided with an equipment body 10, a fluorescent lamp La, an electronic stabilizer 20 attached to the equipment body 10 to light the fluorescent lamp La by supplying electric power, a reflecting plate 30 arranged between the fluorescent lamp La and the equipment body 10 so as to cover the electronic stabilizer 20, and a globe 40 introducing the fluorescent lamp La through an opening part, storing it therein, and attached by substantially opposing a peripheral fringe of the opening part to the equipment body 10 to differ a distance between the peripheral fringe of the opening part of the globe 40 and a section substantially opposing to the peripheral fringe of the opening part in the equipment body 10 in accordance with a position along the peripheral fringe of the opening part. By merely bonding a buffer material to only the peripheral fringe of the opening part in the vicinity of a position where the distance becomes the shortest, airtightness can be maintained, assembly workability can be improved, and cost can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture.

[0002]

2. Description of the Related Art Conventionally, an instrument body, a fluorescent lamp,
An electronic ballast that is attached to the fixture body and supplies electric power to the fluorescent lamp to light the lamp; a reflector disposed between the fluorescent lamp and the fixture body so as to cover the electronic ballast; The board is introduced from the opening and housed inside,
There is provided a ceiling-mounted lighting device including a light-transmitting glove that is mounted with the periphery of the opening substantially opposed to the device body.

The glove and the appliance main body are thermally contracted or thermally expanded in accordance with their respective thermal expansion coefficients by heat generated from a fluorescent lamp or the like. A squeak sound is generated between the respective components due to the difference in the thermal expansion coefficient between the device and the instrument body. Therefore, in order to prevent the generation of the squeak noise, a cushioning material such as packing is attached between the periphery of the opening of the glove and the instrument body.

[0004]

However, in the above-mentioned conventional luminaire, the glove is in contact with the fixture body substantially all around the periphery of the opening. Must be pasted over a wide area,
There is a problem that the assembling workability is reduced and the cost is increased.

In order to prevent the above-mentioned squeak noise from occurring, a glove having a gap between the glove and the appliance body over substantially the entire periphery of the opening is already provided. By providing a gap around substantially the entire periphery of the opening, the airtightness is remarkably lost, and there is a problem that insects and the like enter the inside surrounded by the glove and the instrument body from the outside via the gap. Was.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to provide a lighting fixture which has improved air-tightness and improved assembling workability to reduce costs.

[0007]

In order to achieve the above object, an invention according to claim 1 includes an appliance main body, a lamp, a ballast mounted on the appliance main body, for supplying power to the lamp and lighting the lamp. A reflector disposed between the lamp and the appliance body so as to cover the ballast, and a translucent light that is mounted with at least the lamp being introduced through the opening and housed therein, with the periphery of the opening substantially opposed to the appliance body. A glove, and a distance between a periphery of the opening of the glove and a portion of the device main body substantially opposed to the periphery of the opening,
It is characterized in that it is made different according to the position along the periphery of the opening, and only the periphery of the opening near the position where the distance is the shortest is brought into contact with the instrument body via a cushioning material to achieve airtightness. And a gap is provided between the periphery of the opening and the instrument body at a position other than the vicinity of the position, so that the glove extends over substantially the entire periphery of the opening as in the conventional example. Without sticking the cushioning material, preventing the generation of squeak noise only by sticking the cushioning material only to the periphery of the opening near the position where the distance becomes the shortest,
It is possible to improve the assembly workability and reduce the cost.

According to a second aspect of the present invention, in the first aspect of the present invention, a locking portion for locking on a plane to a locked portion provided on the glove side is provided on the instrument main body, and the locked portion is provided on the locked portion. When the locking portion is locked and the glove is attached to the device main body, a plane along a portion of the device main body substantially opposed to the periphery of the opening portion of the glove is one of the portions where the locking portion is locked to the locked portion. It is arranged substantially parallel to the plane and is not arranged substantially parallel to the plane along the periphery of the opening of the glove, and the plane along the periphery of the opening of the glove is substantially parallel to the plane along the part of the instrument body. , The distance between the peripheral edge of the opening of the glove and the portion of the instrument body is gradually changed according to the position along the peripheral edge of the opening, and the assembly workability is improved while maintaining airtightness. As a result, cost can be reduced.

According to a third aspect of the present invention, in the first aspect of the present invention, a locking portion for locking on a plane to a locked portion provided on the glove side is provided on the instrument body, and the locked portion is provided on the locked portion. When the locking portion is locked and the glove is attached to the device main body, a plane along the periphery of the opening of the glove is arranged substantially parallel to a plane where the locking portion is locked to the locked portion, The glove is characterized in that it is not arranged substantially in parallel with a plane along a portion substantially opposite to a periphery of the opening of the glove in the device body, and a plane along the periphery of the opening of the glove is substantially parallel to a plane along the portion of the device main body. , The distance between the peripheral edge of the opening of the glove and the portion of the instrument body is gradually changed according to the position along the peripheral edge of the opening, and the assembly workability is improved while maintaining airtightness. As a result, cost can be reduced.

According to a fourth aspect of the present invention, in the first aspect of the present invention, one or more projections are provided along the periphery of the opening of the glove so as to project toward the instrument body. The distance between the peripheral edge of the opening of the glove and the portion of the appliance body that is substantially opposed to the peripheral edge of the opening is made different depending on the position along the peripheral edge of the opening.
The airtightness can be maintained by bringing only the plurality of protrusions into contact with the instrument body via the cushioning material, and the opening periphery and the instrument body at positions where one or more protrusions are not provided. Since there is a gap between them, the cushioning material is attached only to the tips of one or more protrusions without attaching the cushioning material over substantially the entire periphery of the opening of the glove as in the conventional example. Only the occurrence of squeaking noise can be prevented, the workability of assembly can be improved, and the cost can be reduced.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the shape of the opening of the glove is substantially circular. Play.

According to a sixth aspect of the present invention, in any one of the first to fourth aspects of the present invention, the shape of the opening of the glove is substantially rectangular. Play.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) A lighting fixture of the present embodiment is of a ceiling-mounted type, as shown in FIGS. 1 and 2, for example, a fixture main body 10 made of a metal member or the like, and a fluorescent lamp La. And an electronic ballast 20 attached to the apparatus main body 10 to supply electric power to the fluorescent lamp La and light it.
And a reflector 30 disposed between the fluorescent lamp La and the instrument body 10 so as to cover the electronic ballast 20, and the fluorescent lamp La, the reflector 30 and the like are introduced from the opening and housed therein. And a translucent glove 40 that is attached so that the periphery of the part is substantially opposed to the instrument body 10.

The fluorescent lamp La is ring-shaped, and two types of large and small fluorescent lamps (for example, FCL40 / 38 and FCL32 / 30) having different rated outputs and different tube diameters are used.

The electronic ballast 20 includes a rectifier for rectifying a commercial power supply, an inverter circuit, and the like, and has a conventionally well-known configuration for converting a low-frequency commercial power supply to a high frequency and lighting the fluorescent lamp La at a high frequency. The circuit components constituting the inverter circuit and the like are mounted on a substantially U-shaped circuit board 22 made of a printed wiring board. here,
In addition to the above components such as the inverter circuit, on the circuit board 22, a bean ball socket 23 into which a bean ball as a night light is detachably mounted, and power supply to the fluorescent lamp La from the electronic ballast 20 is turned on / off. And a switch 24 for turning on and off.

The instrument body 10 has a circular opening 1 substantially at the center.
1, and a peripheral wall 12 is provided upright at the peripheral edge over the entire periphery. In addition, a cylindrical portion 13 into which the later-described mounting adapter 1 is inserted and fixed is coupled to the lower surface side of the periphery of the opening 11 of the instrument body 10. Further, in the vicinity of the lower peripheral edge of the instrument body 10, four fixing portions 14 provided on the glove 40, which will be described later, are locked and fixed in a detachable manner, substantially along the circumferential direction of the instrument body 10. They are integrally protruded from the instrument body 10 at equal intervals. These fixing portions 14 are substantially L-shaped in cross section, open outward, and have an insertion portion 14 a having a larger gap with the lower surface of the instrument body 10, and an engaging portion 14 b having a smaller gap with the insertion portion 14 a. One end of the portion 14a along the circumferential direction is open. In addition, the gap dimensions between the four locking portions 14b and the lower surface of the instrument body 10 are substantially equal to each other. The above-described appliance body 10 may be formed of a non-conductive synthetic resin (for example, a thermoplastic resin such as polycarbonate).

The mounting adapter 1 has a substantially cylindrical main body 1a,
Wiring device connection portion provided on the upper surface of the main body 1a and attached to a wiring device (not shown) such as a hooking ceiling 2 or a buried rosette disposed on the ceiling to simultaneously perform mechanical coupling and electrical connection. 1b, a pair of locking pieces 1c that protrude from the outer peripheral surface of the main body 1a so as to be able to advance and retreat and engage with and engage with an engaging projection 13a (described later) of the instrument main body 10;
and a pair of operation knobs 1d which slide freely from the lower surface of a and advance and retract the respective locking pieces 1c. An electronic ballast 2 is provided from the mounting adapter 1 via a power line.
0 or the like is supplied with commercial power.

When the above-described tool body 10 is mounted on a ceiling or the like using the mounting adapter 1, the engaging projection 13a is provided on the inner peripheral surface of the cylindrical portion 13 of the tool body 10 over the entire circumference. Opening 1a from the top side of the instrument body 10
Through which the mounting adapter 1 attached to the hooking ceiling 2 is inserted, and the pair of locking pieces 1c which have been retracted into the main body 1a of the mounting adapter 1 at the time of insertion are advanced to the engaging projections 13a of the cylindrical portion 13. Engage. Thereby, the instrument main body 10 is mechanically connected to the mounting adapter 1 and fixed. By operating the operating knob 1d of the mounting adapter 1 to retract the locking piece 1c into the main body 1a, the engaging projection 13
The device body 10 can be removed from the mounting adapter 1 by releasing the engagement state between the a and the locking piece 1c.

The reflecting plate 30 is formed in a substantially bowl shape by a plate-shaped metal member, and four outer flanges 31 are provided to protrude over the entire periphery of the opening end. A substantially circular exposure hole 32 for exposing the mounting adapter 1 located in the cylindrical portion 13 is provided substantially at the center on the flat bottom surface of the reflection plate 30, and the periphery thereof is attached to the bead ball socket 23. An insertion hole 33 through which a bean ball is inserted is provided. A pair of support springs 34 for supporting the fluorescent lamp La are attached to the slope of the reflection plate 30.

Here, the circuit board 22 and the cylindrical portion 13 are housed inside, and the fixing portion 14 is interposed between each of the four outer flanges 31.
Is disposed on the lower surface side of the instrument body 10 so that the
Is attached to the fixture body 10, the lamp socket 21 mounted on the circuit board 22 projects out of the reflection plate 30 from the insertion groove (not shown), and is mounted on the lamp socket 21 and supported by the support spring 34. The reflection plate 30 is arranged between the lamp La and the device main body 10. The reflection plate 30 is fixed to the instrument body 1 by screws and caulking.
Fixed to 0.

The glove 40 is formed of a translucent synthetic resin such as an acrylic resin and formed in a substantially dome shape having a substantially circular opening on the upper surface. The glove body 4 is formed integrally with a peripheral wall 42 erected over the circumference and a flange 43 projecting outward from the tip of the peripheral wall 42.
As in the case of the first embodiment, it has a substantially circular opening. The surrounding wall 4
On the inner peripheral surface of the two, four locked portions 44 having a substantially mountain shape in plan view are protruded at substantially equal intervals. The thickness of these four locked portions 44 is substantially equal to the height from the periphery of the opening of the glove body 41 on the peripheral wall 42 on which the locked portions 44 are formed,
The lower end surface of each locked portion 44 is arranged on a plane A along the opening of the glove body 41.

When the glove 40 is attached to the instrument body 10, the fluorescent lamp La and the reflector 30 introduced from the opening of the glove 40 are accommodated in the glove 40 and the flange 43 is provided inside the peripheral wall 12 of the instrument body 10.
The glove 40 is disposed on the instrument body 10 with the tip of the peripheral wall 42, which is the periphery of the opening of the glove 40, substantially facing the lower surface side of the instrument body 10 so that the glove 40 is accommodated. When the glove 40 is rotated from this state, the locked portion 44 is inserted and locked in the locking portion 14b through the insertion portion 14a of the fixed portion 14, so that the glove 40 is attached to the lower surface of the instrument body 10. . Here, the four locking portions 14b are respectively locked to the respective locked portions 44 on the plane A along the opening of the glove body 41, and the four locking portions 14b are in contact with the lower surface of the instrument body 10 respectively. Since the gap dimensions between them are substantially equal to each other, the plane A and the plane B along a portion substantially opposing the distal end of the peripheral wall 42 of the instrument body 10 are arranged substantially in parallel. If the glove 40 is rotated in the direction opposite to the direction in which the glove is attached, the locked portion 44 comes off from the fixing portion 14 and the glove 40 can be removed from the instrument body 10.

In this embodiment, as shown in FIG. 1, the peripheral wall 42 of the glove 40 is formed such that the height from the periphery of the opening of the glove body 41 goes from one end in the radial direction of the opening of the glove body 41 to the other end. The four locking portions 14b are formed so as to be gradually higher.
It is formed so that the gap size between the lower surface and the lower surface is equal to the largest thickness of the four locked portions 44.

Therefore, when the glove 40 is attached to the instrument body 10, the plane B is disposed substantially in parallel with the plane A as described above, but the plane B along the peripheral edge of the peripheral wall 42 which is the peripheral edge of the opening of the globe 40. C will not be arranged substantially parallel. Thereby, in the present embodiment, the glove 4
The distance between the peripheral edge of the opening 0 and a portion of the instrument body 10 that is substantially opposed to the peripheral edge of the opening is gradually changed according to the position along the peripheral edge of the opening.

As a result, as described above, the four locking portions 14
The gap dimension of b is adjusted to the largest thickness dimension of the four locked parts 44, and only the tip of the peripheral wall 42 near the position where the distance becomes shortest is interposed via the cushioning material.
By making contact with 0, airtightness can be maintained as compared with the conventional example, in which a gap is provided between the glove and the instrument main body over the entire periphery of the opening edge of the glove. Further, since a gap is left between the distal end of the peripheral wall 42 and the instrument body 10 at a position other than the vicinity of the above-described position, the cushioning material is attached over substantially the entire periphery of the opening of the glove as in the conventional example. Without damping noise, it is possible to prevent the generation of squealing noise only by adhering the cushioning material only to the tip of the peripheral wall 42 near the position where the distance becomes the shortest, thereby improving the assembly workability and reducing the cost.
(Embodiment 2) Since the basic configuration in this embodiment is common to Embodiment 1, the same reference numerals are given to the common parts, and the description thereof will be omitted, and only the characteristic parts of this embodiment will be described in detail. I do.

In the present embodiment, as shown in FIG. 3, each of the opening of the instrument body 10, the reflector 30 and the globe 40 has a substantially rectangular shape.

The glove body 41 has a substantially rectangular box shape.
The peripheral wall 42 of the glove 40 has side walls 42 substantially opposite to each other.
a, 42a and side walls 42b, 4 which are also substantially opposite to each other.
2b. The one side wall 42a protrudes higher from the periphery of the opening of the glove body 41 than the other side wall 42a, and the height of the side walls 42b, 42b gradually decreases from the one side wall 42a toward the other side wall 42a. It is formed as follows.

Further, the fixture body 10 is provided with two fixing portions 14 consisting of only the locking portions 14b.
The gap dimension between the lower surface of the glove 40 and the lower side of the instrument body 10 is adjusted to the height of the higher side wall 42 a of the glove 40.

Therefore, when the locking portions 14b are locked on the inner surface around the opening of the substantially rectangular box-shaped glove main body 41 and the glove 40 is attached to the equipment main body 10, the same as in the first embodiment, Is substantially parallel to the plane in which the two locking portions 14b are locked to the inner surface around the opening of the glove body 41, and is the periphery of the opening of the glove 40. It is not arranged substantially parallel to a plane along the peripheral edge of the peripheral wall 42. Thus, in the present embodiment, as in the first embodiment, the distance between the periphery of the opening of the glove 40 and the portion of the instrument body 10 that is substantially opposed to the periphery of the opening is set to a position along the periphery of the opening. It is gradually changing according to.

As a result, as described above, the two locking portions 14
The gap dimension of b is adjusted to the height of one of the side walls 42a that protrude, and only the tip of the side wall 42a is brought into contact with the instrument body 10 via the cushioning material, thereby opening the glove as in the conventional example. Airtightness can be maintained more than providing a gap between the device main body and the substantially entire periphery of the peripheral edge. Further, since there is a gap between the distal ends of the other side walls 42a, 42b, 42b and the apparatus main body 10, only a cushioning material is stuck to only the distal end of one of the side walls 42a protruding high, thereby preventing generation of squeaking noise. It is possible to improve the assembly workability and reduce the cost. (Embodiment 3) Since the basic configuration in this embodiment is common to Embodiment 1, the same parts are denoted by the same reference numerals and the description thereof will be omitted, and only the characteristic parts of this embodiment will be described in detail. I do.

In the present embodiment, as shown in FIG. 4, unlike the first embodiment, the height of the peripheral wall 42 of the glove 40 from the periphery of the opening of the glove body 41 is substantially uniform along the periphery of the opening. It is formed so that it becomes. This gives 4
A plane A on which the lower end surfaces of the two locked portions 44 are arranged and a plane C along the peripheral edge of the peripheral wall 42 that is the peripheral edge of the opening of the globe 40 are arranged substantially in parallel.

Further, in the present embodiment, the instrument body 1
The gap between the four locking portions 14b and the lower surface of the instrument body 10 is formed so as to gradually increase or decrease from one end in the radial direction of the instrument body 10 toward the other end, and the minimum value is set. The thickness is adjusted to the thickness of the locking portion 44.
For example, assuming that the clearance dimension of the locking portion 14b located at one radial end (left side in FIG. 4) of the instrument body 10 is the minimum value h1, the locking portion 14b at the other end (right side in FIG. 4). Is a maximum value h2 larger than h1.

Therefore, when the glove 40 as described above is attached to the instrument body 10, the plane C along the periphery of the opening of the glove 40 is locked by the four locking portions 14b to the locked portions 44. The plane C is substantially opposed to the distal end of the peripheral wall 42 of the instrument body 10 by being arranged substantially parallel to the plane A and having different gap sizes between the four locking portions 14b and the lower surface of the instrument body 10. It will not be arranged substantially parallel to the plane B along the site. Thus, similarly to the first and second embodiments, the distance between the periphery of the opening of the glove 40 and the portion of the device main body 10 that is substantially opposed to the periphery of the opening gradually increases according to the position along the periphery of the opening. They are different.

As a result, as described above, the four locking portions 14
b, the minimum gap dimension is adjusted to the thickness dimension of the locked portion 44, and only the tip of the peripheral wall 42 near the position where the above distance becomes the shortest is brought into contact with the instrument body 10 via the cushioning material. Thus, the airtightness can be maintained more than the conventional example in which a gap is provided between the glove and the instrument body over the entire periphery of the opening edge of the glove. Furthermore, since there is a gap between the distal end of the peripheral wall 42 and the instrument body 10 at a position other than the vicinity of the position, the peripheral wall 42 near the position where the distance is shortest
It is possible to prevent the generation of squeak noise only by sticking the cushioning material only to the tip, to improve the assembling workability and to reduce the cost. (Embodiment 4) Since the basic configuration in this embodiment is common to Embodiment 1 or 2, the same reference numerals are given to the common parts, and the description thereof will be omitted, and only the characteristic parts of this embodiment will be described in detail. Will be described.

In this embodiment, as shown in FIG. 5, similarly to the third embodiment, the height of the peripheral wall 42 of the glove 40 from the periphery of the opening of the glove body 41 is substantially uniform along the periphery of the opening. As described above, the glove 40 is formed, and similarly to the first embodiment, the appliance main body 10 is formed such that the gaps between the four locking portions 14b and the lower surface of the appliance main body 10 are substantially equal to each other. Further, in the present embodiment, a plurality of protrusions 45 protruding toward the instrument main body 10 along substantially the entire periphery of the distal end of the peripheral wall 42 of the glove 40 are provided.

Therefore, when the glove 40 as described above is attached to the instrument body 10, the plurality of projections 45 allow the distance between the periphery of the opening of the glove 40 and a portion of the instrument body substantially opposite to the periphery of the opening. Are made different depending on the position along the periphery of the opening.

As a result, airtightness can be maintained by bringing only the plurality of protrusions 45 into contact with the instrument body 10 via the cushioning material, and the above-mentioned position at a position where the plurality of protrusions 45 are not provided is provided. Since a gap is opened between the periphery of the opening and the device main body 10, only a cushioning material is stuck to the tip of the plurality of projections 45 to prevent generation of squeak noise, improve assembly workability, and reduce cost. Can be achieved.

When the glove body 41 has a substantially rectangular box shape and the opening of the globe 40 has a substantially rectangular shape as in the second embodiment, as shown in FIG. Of the other side walls 42a, 42b, 42
By protruding higher than b, a configuration in which one protrusion protruding toward the instrument body 10 as described above may be provided on the periphery of the opening of the glove 40 may be adopted.

[0039]

According to the first aspect of the present invention, there is provided an appliance main body, a lamp, a ballast attached to the appliance main body, for supplying power to the lamp and lighting the lamp, and a lamp and the appliance main body covering the ballast. A lighting apparatus comprising: a reflecting plate disposed between the light-transmitting gloves; Since the distance between the peripheral edge of the opening of the glove and the portion of the instrument body that is substantially opposed to the peripheral edge of the opening is made different depending on the position along the peripheral edge of the opening, the position where the distance becomes the shortest The airtightness can be maintained by abutting only the periphery of the opening portion in the vicinity to the instrument main body via the cushioning material, and the gap between the opening periphery and the appliance body at a position other than the vicinity of the position can be maintained. Because there is a gap between Unlike the conventional example, the cushioning material is not attached over substantially the entire periphery of the opening portion of the glove, and only the cushioning material is attached on the periphery of the opening portion near the position where the distance is shortest. To prevent the occurrence of
There is an effect that the assembly workability can be improved and the cost can be reduced.

According to a second aspect of the present invention, a locking portion for locking on a plane is provided on the locked portion provided on the glove side, and the locking portion is locked on the locked portion. When the glove is attached to the instrument body, a plane along a portion of the instrument body that is substantially opposed to a peripheral edge of the opening of the glove is disposed substantially parallel to a plane where the locking portion is locked to the locked portion. Since it is not arranged substantially parallel to the plane along the opening peripheral edge of the glove, the distance between the opening peripheral edge of the glove and the part of the appliance body gradually varies according to the position along the opening peripheral edge. In addition, there is an effect that it is possible to improve the assembling workability while maintaining the airtightness and to reduce the cost.

According to a third aspect of the present invention, a locking portion for locking on a plane is provided on the locked portion provided on the glove side, and the locking portion is locked on the locked portion. When the glove is attached to the instrument body, the plane along the periphery of the opening of the glove is arranged substantially parallel to a plane where the engaging portion is engaged with the locked portion, and the opening of the glove in the instrument body is provided. Since it is not arranged substantially parallel to a plane along a portion substantially opposed to the periphery, the distance between the periphery of the opening of the glove and the portion of the appliance body is gradually different according to the position along the periphery of the opening. In addition, there is an effect that it is possible to improve the assembling workability while maintaining the airtightness and to reduce the cost.

According to the fourth aspect of the present invention, since one or a plurality of projections are provided to protrude toward the instrument body along the periphery of the opening of the glove, the periphery of the opening of the glove and the periphery of the opening of the instrument body are provided. The airtightness is maintained by making the distance between the substantially opposed parts different according to the position along the periphery of the opening, and bringing only one or a plurality of protrusions into contact with the instrument body via the cushioning material. And a gap is provided between the periphery of the opening at a position where one or a plurality of protrusions are not provided and the instrument main body. Without sticking the cushioning material across, only the cushioning material is stuck to the tips of the one or more protruding portions, so that the generation of squeak noise can be prevented, the assembling workability can be improved, and the cost can be reduced. This has the effect.

According to the fifth aspect of the present invention, since the shape of the opening of the glove is substantially circular, the same effects as those of the first to fourth aspects of the invention can be obtained.

According to the sixth aspect of the present invention, since the shape of the opening of the glove is substantially rectangular, the same effects as those of the first to fourth aspects of the invention can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic side sectional view showing a state in which a glove according to a first embodiment is removed.

FIG. 2 is a schematic exploded perspective view of the same.

FIG. 3 is a schematic exploded perspective view showing a second embodiment.

FIG. 4 is a schematic side cross-sectional view showing a third embodiment with a glove removed.

FIG. 5 is a schematic side sectional view showing a state where a glove is removed according to the fourth embodiment.

FIG. 6 is a perspective view of another glove of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Instrument main body 14 Fixed part 14b Locking part 20 Electronic ballast 30 Reflector 40 Globe 41 Glove main body 42 Perimeter wall 44 Locked part La Fluorescent lamp

Claims (6)

[Claims] 1. An appliance main body, a lamp, a ballast mounted on the appliance main body and supplying power to the lamp to light the lamp, and a reflector disposed between the lamp and the appliance main body so as to cover the ballast. And a light-transmitting glove attached at least with the lamp introduced from the opening and housed therein, with the periphery of the opening being substantially opposed to the device main body, and a light-transmitting glove, A lighting apparatus characterized in that a distance between a part of the apparatus main body and a part substantially opposite to the periphery of the opening is changed according to a position along the periphery of the opening. 2. The apparatus main body is provided with a locking portion for locking on a plane to a locked portion provided on the glove side, and locking the locking portion to the locked portion. When attached to the device body, a plane along a portion of the device main body that substantially faces the periphery of the opening of the glove is disposed substantially parallel to a plane where the locking portion is locked to the locked portion, and the opening of the glove is formed. The lighting fixture according to claim 1, wherein the lighting fixture is not arranged substantially parallel to a plane along the periphery. 3. The device main body is provided with a locking portion for locking on one plane to a locked portion provided on the glove side, and the locking portion is locked by the locked portion. When attached to the glove, the plane along the periphery of the opening of the glove is arranged substantially parallel to a plane where the locking portion is locked to the locked portion, and substantially faces the periphery of the opening of the glove in the instrument body. 2. The lighting device according to claim 1, wherein the lighting device is not arranged substantially parallel to a plane along the part. 4. The luminaire according to claim 1, wherein one or a plurality of protrusions projecting toward the luminaire main body are provided along the periphery of the opening of the glove. 5. The lighting device according to claim 1, wherein the shape of the opening of the glove is substantially circular. 6. The lighting device according to claim 1, wherein the shape of the opening of the glove is substantially rectangular.