JPH10275519A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the generation of hanging of a cord of an adapter at an intermediate part thereof between the adapter and a connector, which is provided in a luminaire. SOLUTION: An adapter 1 to be installed in a hook ceiling has a cord 6 provided with a connector 7 in the tip thereof. A reflector 21 is provided under a luminaire main body 11, and the luminaire main body 11 and the reflector 21 are provided with an opening part 16 to be engaged with the reflector 21. A connector 32 provided in the luminaire, to which the connector 7 provided in the cord 6 of the adapter is to be connected, and a cord locking part 33 for locking the cord 6 at an intermediate part thereof freely to be disconnected are provided under the reflector 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture using an adapter which is mounted on a hooking ceiling.

[0002]

2. Description of the Related Art Conventionally, an adapter is electrically and mechanically connected to a hooking ceiling installed on a ceiling surface, an instrument main body is mechanically attached to the adapter, and a leading end of a cord pulled out of the adapter is located on the adapter side. 2. Description of the Related Art There is known a lighting fixture in which a connector is electrically connected to a fixture-side connector. As described above, by using the adapter, the appliance body can be installed at a fixed position on the ceiling surface in correspondence with both the embedded hooking ceiling having a low protruding height and the rectangular hooking ceiling having a high protruding height. .

An opening for engaging the adapter is formed in the instrument body. When the opening is engaged with the adapter, the cord of the adapter is pulled out to the lower surface of the instrument body through the opening, and the adapter of the cord is The side connector is connected to an instrument-side connector arranged on the lower surface side of the instrument body.

[0004] The length of the cord of the adapter is made longer than the distance from the position of the adapter engaged with the opening to the connector on the instrument side in order to allow a margin for connection.

[0005]

However, in the conventional luminaire, the connection of the adapter cord is performed on the lower surface side of the luminaire main body, and the length of the cord of the adapter has to be taken into consideration to allow a margin for the connection. Therefore, since it is formed longer than the distance from the position of the adapter engaged with the opening to the instrument-side connector, the middle part of the adapter cord hangs between the adapter and the instrument-side connector, for example, the lower surface of the instrument body There is a problem that the shade of the code is reflected on the shade when the shade is covered with the shade.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and prevents an intermediate portion of a cord of an adapter from hanging down between an adapter and a connector on a device side, for example, when covering a lower surface of a device body with a shade. It is an object of the present invention to provide a lighting device that can prevent a shadow of a code from being reflected on a shade.

[0007]

According to a first aspect of the present invention, there is provided a lighting apparatus, wherein a cord having an adapter-side connector at its tip is led out, and has an adapter to be attached to a hooking ceiling and an opening to be engaged with the adapter. And a fixture body on which a lamp is arranged on the lower surface side, and a lamp body arranged on the lower surface side of the fixture body,
A reflector in which the opening of the instrument body is formed in communication with the reflector, an instrument-side connector disposed on the lower surface of the reflector, to which an adapter-side connector of the cord is connected, and a reflector disposed on the lower surface of the reflector; And a cord engaging portion for detachably engaging an intermediate portion of a cord connected to the appliance-side connector.

In order to install a lighting fixture, an adapter is attached to the hooking ceiling, the opening of the fixture body and the reflector is engaged with the adapter, and the cord of the adapter is pulled out through the opening to the lower surface of the reflector. The adapter-side connector is connected to the appliance-side connector provided on the lower surface side of the reflector, and the middle portion of the cord is locked to the cord locking portion. Therefore, the middle part of the cord of the adapter does not hang down between the adapter and the connector on the appliance side. For example, even when the lower surface of the appliance body is covered with the shade, the shadow of the cord does not appear on the shade.

According to a second aspect of the present invention, in the lighting apparatus according to the first aspect, the fixture-side connector is disposed near an edge of the opening of the reflector, and the cord locking portion is located near the fixture-side connector. The cord is connected to the connector on the device side and can be easily locked to the cord locking portion.

According to a third aspect of the present invention, in the lighting apparatus according to the first or second aspect, a pair of cord locking portions are respectively provided on both sides of the connector on the side of the apparatus.
The cord can be locked to the cord locking portion regardless of the position where the cord is led out from the adapter in either side of the appliance-side connector.

According to a fourth aspect of the present invention, there is provided the lighting apparatus according to any one of the first to third aspects, wherein the cord locking portion is formed integrally with the reflector. Manufacturability is improved as compared with such a case.

According to a fifth aspect of the present invention, in the lighting apparatus according to any one of the first to fourth aspects, the cord locking portion has a pair of locking pieces opposed to each other with a gap for accommodating the cord. A pair of locking claws protruding from the tip of each locking piece to face each other and facing each other with a smaller interval than the width of the cord, and passing the cord between the pair of locking claws. Can be easily locked.

According to a sixth aspect of the present invention, there is provided the lighting device according to the fifth aspect, wherein the lighting device is formed in a curved shape from the locking piece to the inner surface of the locking claw. Easy to remove from between the locking claws.

According to a seventh aspect of the present invention, in the lighting apparatus according to any one of the first to sixth aspects, the lamp is a ring-shaped fluorescent lamp having a tube diameter of about 15 to 20 mm to prevent the cord from sagging. In addition, the apparatus can be made thinner in the height direction.

According to an eighth aspect of the present invention, there is provided the lighting apparatus according to any one of the first to seventh aspects, further comprising a shade surrounding the lower surface of the apparatus main body, wherein a shadow of the cord is reflected on the shade. To prevent

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a lighting fixture according to the present invention will be described below with reference to FIGS.

FIG. 1 is a bottom view of the lighting fixture, FIG. 2 is an enlarged sectional view of a cord locking portion, and FIG. 3 is a side view of the lighting fixture with a part cut away.

The luminaire has an adapter 1 which is used to electrically and mechanically attach various kinds of embedded ceilings such as a rectangular hanging ceiling 3 and an embedded hanging ceiling, which are installed on a ceiling surface 2. It is connected detachably. A pair of engaging claws 4 are respectively protruded from the cylindrical case side surface of the adapter 1 by urging of a spring (not shown), and a removal button 5 for retreating the pair of engaging claws 4 into the case is arranged on the lower surface of the case. Have been.

A cord 6 is led out from the lower edge of the adapter 1, and an adapter-side connector 7 is attached to the tip of the cord 6. The length of the cord 6 is longer than a distance from a position of the adapter 1 engaged with the opening 16 described later to an appliance-side connector 32 described later in consideration of providing a margin for connection. As the cord 6, a covered electric wire in which a two-core electric wire 8 is covered with a covering 9 is used.

The rectangular hooking ceiling 3 is box-shaped and has a high protruding height, and the embedded hooking ceiling is disk-shaped and has a low protruding height.

The metal fixture main body 11 of the lighting fixture includes:
It has a disk-shaped substrate portion 12, and an edge portion 13 is bent downward from the periphery of the substrate portion 12. A flat portion 14 is formed in a central region of the substrate portion 12, and a concave portion 15 which is recessed downward is formed in a peripheral portion.

In the center of the flat portion 14, an opening 16 having an inner diameter dimension into which the adapter 1 and the rectangular hooking seal 3 can be inserted.
Are formed. A plurality of dowels 17 are formed in the recess 15 so as to protrude upward, and these dowels 17 come into contact with the ceiling surface 2 when the instrument body 11 is installed on the rectangular hooking ceiling 3. Further, the concave portion 15 has an annular elastic body made of sponge, rubber, or the like.
18 is attached over the entire circumference of the instrument body 11, and when the instrument body 11 is
18 is pressed against the ceiling surface 2 to achieve adhesion and insect repellency.

A reflector 21 made of synthetic resin is attached to the lower surface of the instrument body 11. On the lower surface of the reflector 21, a reflection surface 22 is formed in a curved convex shape, and in the center, a cylindrical portion 23 to which the opening 16 of the instrument body 11 is communicated is formed. 3 and an upper second engaging portion which engages with the engaging claw 4 of the adapter 1 which is connected to the embedded hooking ceiling. 25 are provided.

At a symmetrical position on the circumference of the reflector 21, a lamp holder 27 for mounting a ring-shaped fluorescent lamp 26 as a lamp and a lamp socket 28 are provided. As the ring-shaped fluorescent lamp 26, a type having a tube diameter of about 16.5 mm (about 15 to 20 mm), which is thinner than a general tube diameter of about 29 mm, is used.

A lighting device 29 for lighting the annular fluorescent lamp 26 is housed inside the reflector 21. The lighting device 29 has a printed circuit board 30 on which an inverter circuit is mounted, and the printed circuit board 30 is disposed substantially parallel to the appliance main body 11 and around the opening 16 (the cylindrical portion 23). The lamp socket 28 is electrically connected to the output side of the lighting device 29.

A recess 31 is formed in the reflection surface 22 of the reflector 21 at the edge of the opening 16. The recess 31 has an appliance-side connector 32 electrically connected to the power input side of the lighting device 29. Are arranged. The adapter-side connector 7 of the cord 6 of the adapter 1 is connected to the appliance-side connector 32.

Further, on the reflecting surface 22 of the reflector 21, near the both sides of the concave portion 31, there are provided cord locking portions 33 for detachably locking the intermediate portion of the cord 6. Cord locking part 33
Has a pair of locking pieces 34 and a pair of locking claws 35 protruding from the tip of each of the locking pieces 34 so as to face each other. It is integrally molded with. A cord storage space 36 is formed between the pair of locking pieces 34 with a gap allowing the cord 6 to be accommodated,
A cord attaching / detaching port 37 is formed between the pair of locking claws 35 so as to be opposed to each other with an interval smaller than the width of the cord 6. Locking piece
A curved surface 38 is formed from 34 to the inner surface of the locking claw 35,
An inclined surface 39 is formed on the outer surface of the distal end of the locking claw 35.
An opening for die cutting is provided on the reflector 21 side of the pair of locking pieces 34.
Forty are formed.

Also, on the lower surface of the instrument body 11,
Cover the annular fluorescent lamp 26, etc.
41 is installed. The shade 41 is made of, for example, a translucent milky white synthetic resin, and is detachably attached by a shade attachment fitting 42 arranged on the periphery of the instrument body 11.

Next, the operation of the present embodiment will be described.

First, the appliance main body 11 is connected to the square hooking seal 3.
In the case of mounting the device, the opening 16 of the instrument body 11 is engaged with the adapter 1 mounted on the rectangular hooking seal 3. Since the rectangular hooking ceiling 3 has a high protruding height, the lower first engaging portion 24 is engaged with the engaging claw 4 of the adapter 1 mounted on the rectangular hooking ceiling 3. At this time, the cord 6 of the adapter 1 is drawn out below the reflector 21 through the opening 16.

When the lower first engaging portion 24 is engaged with the engaging claw 4 of the adapter 1, the upper surface of the instrument main body 11 comes into contact with the ceiling surface 2, and the instrument main body 11 contacts the ceiling surface 2. Supported. Further, the elastic body 18 is pressed against the ceiling surface 2 to achieve the adhesion and the insect repellency.

The adapter-side connector 7 of the cord 6 of the adapter 1 is connected to the appliance-side connector 32 provided in the concave portion 31 of the reflector 21.
Connect to The middle part of the cord 6 is engaged with the cord engaging part 33. At this time, according to the position of the lead-out from the adapter 1,
The cord 6 is locked to one of the two cord locking portions 33. In order to lock the cord 6 to the cord locking portion 33, the cord 6 is pressed into the cord attaching / detaching port 37 between the pair of locking claws 35 and passes through the cord storage space 36. Since the locking claw 35 has the inclined surface 39, the cord 6 can be easily pressed into the cord attachment / detachment port 37 between the pair of locking claws 35. The cord 6 passed through the cord storage space 36 has a cord attaching / detaching opening 37 smaller than the width of the cord 6.
It is kept without falling off.

The cord 6, the intermediate portion of which is locked by the code locking portion 33, is disposed along the reflecting surface 22 of the reflector 21 without hanging between the adapter 1 and the device-side connector 32. You. Therefore, the lower surface of the instrument body 11 is
, The shadow of the code 6 does not appear on the shade 41.

When the main body 11 is detached from the rectangular hooking seal 3 for maintenance or cleaning, the adapter connector 7 is detached from the appliance connector 32 and the cord 6 is detached from the cord engaging portion 33. , Instrument body 11
From adapter 1.

To remove the cord 6 from the cord locking portion 33,
The cord 6 is detached from the cord attachment / detachment opening 37 while pushing the gap between the pair of locking claws 35. At this time, since the curved surface 38 is formed on the inner surface of the locking claw 35, the cord 6 can be easily removed without being caught.

As described above, in order to dispose the device side connector 32 at the edge of the opening 16 of the reflector 21 and to dispose the cord locking portion 33 near the device side connector 32, the adapter 1 The code 6 of the adapter 1 between the device side connector 32
Can be prevented from hanging down, and the shadow of the cord 6 can be prevented from appearing on the shade 41.

Since the device-side connector 32 is disposed near the edge of the opening 16 of the reflector 21 and the cord locking portion 33 is disposed near the device-side connector 32, Connection to the connector 32 and locking to the cord locking portion 33 can be easily performed.

Further, since a pair of cord locking portions 33 are provided on both sides of the appliance-side connector 32, the cord 6 can be extended from the adapter 1 regardless of the position where the cord 6 is led out from either side of the appliance-side connector 32. 6 can be locked to the cord locking portion 33.

Further, since the cord locking portion 33 is formed integrally with the reflector 21, the manufacturability can be improved as compared with a case where the cord locking portion 33 is formed separately and assembled, for example.

The cord locking portion 33 has a pair of locking pieces 34 opposed to each other with a gap capable of accommodating the cord 6, and projects from the tip of each locking piece 34 so as to face each other. Since it has a pair of locking claws 35 facing each other at an interval smaller than the width of 6, the cord 6 can be easily locked simply by passing the cord 6 between the pair of locking claws 35.

Further, since the curved surface 38 is formed from the locking piece 34 to the inner surface of the locking claw 35, the locked cord 6 can be easily removed from between the pair of locking claw 35.

The opening 16 on the lower surface side of the instrument body 11
Since the ring-shaped fluorescent lamp 26 is disposed around the lighting device, a thin-shaped lighting device can be provided. Furthermore, by using the ring-shaped fluorescent lamp 26 having a thin tube diameter of about 16.5 mm (about 15 to 20 mm), it is possible to make the apparatus thinner in the height direction.

[0043]

According to the first aspect of the present invention, a cord locking portion for detachably locking an intermediate portion of a cord of an adapter connected to the fixture side connector is provided on the lower surface side of the reflector. Therefore, it is possible to prevent the middle part of the cord of the adapter from hanging down between the adapter and the connector on the appliance side. For example, when the lower surface of the appliance body is covered with a shade, the shadow of the cord can be prevented from being reflected on the shade.

According to the lighting device of the second aspect, in addition to the effect of the lighting device of the first aspect, the fixture-side connector is disposed near the edge of the opening of the reflector, and the cord locking portion is provided. Since the cord is disposed near the instrument-side connector, the connection of the cord to the instrument-side connector and the engagement with the cord engaging portion can be easily performed.

According to the lighting device of the third aspect, in addition to the effects of the lighting device of the first or second aspect, a pair of cord locking portions are provided on both sides of the connector on the device side, respectively, so that the adapter from the adapter can be used. The cord can be locked to the cord locking portion regardless of where the cord is led out in either side of the appliance-side connector.

According to the lighting device of the fourth aspect, in addition to the effects of the lighting device of the first to third aspects, since the cord locking portion is formed integrally with the reflector, for example, it is provided separately. Manufacturability can be improved as compared with the case of forming and assembling.

According to the luminaire of the fifth aspect, in addition to the effects of the luminaire of any one of the first to fourth aspects, in addition to the effects of the luminaire of the first to fourth aspects, the cord locking portion is formed by a pair of opposing gaps for accommodating the cord. Since it has a locking piece, and has a pair of locking claws which are protruded from the tip of each locking piece to face each other and are opposed at an interval smaller than the width of the cord,
It can be easily locked simply by passing the cord between the pair of locking claws.

According to the lighting device of the sixth aspect, in addition to the effect of the lighting device of the fifth aspect, since the lighting device is formed in a curved shape from the locking piece to the inner surface of the locking claw, the lighting device is locked. The cord can be easily removed from between the pair of locking claws.

According to the luminaire of the seventh aspect, in addition to the effect of the luminaire of any one of the first to sixth aspects, the lamp is a ring-shaped fluorescent lamp having a tube diameter of about 15 to 20 mm. In addition to being able to prevent sagging, it is possible to reduce the thickness of the device in the height direction.

According to the lighting device of the eighth aspect, in addition to the effects of the lighting device of any one of the first to seventh aspects, even if the device has a shade surrounding the lower surface of the device main body, the shadow of the cord can be reduced. It can be prevented from being reflected in the shade.

[Brief description of the drawings]

FIG. 1 is a bottom view of a lighting fixture showing an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of the same cord locking portion.

FIG. 3 is a side view in which a part of the lighting fixture is cut away.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Adapter 3 Square hooking ceiling as hooking ceiling 6 Cord 7 Adapter side connector 11 Instrument body 16 Opening 21 Reflector 26 Ring-shaped fluorescent lamp as lamp 32 Instrument side connector 33 Cord locking section 34 Locking piece 35 Locking claw 41 Sade

Claims (8)

[Claims] A cord having an adapter-side connector at its tip is led out, and an adapter attached to a hooking seal; an appliance body having an opening engaged with the adapter and having a lamp disposed on a lower surface side; A reflector disposed on the lower surface side of the appliance body and having an opening of the appliance body formed in communication therewith; an appliance connector arranged on the lower surface side of the reflector and connected to the adapter connector of the cord And a cord locking portion disposed on a lower surface side of the reflector and detachably locking an intermediate portion of a cord connected to the fixture-side connector. 2. The lighting fixture according to claim 1, wherein the fixture-side connector is disposed near an edge of the opening of the reflector, and the cord locking portion is disposed near the fixture-side connector. . 3. The lighting fixture according to claim 1, wherein a pair of cord locking portions are provided on both sides of the fixture-side connector. 4. The lighting apparatus according to claim 1, wherein the cord locking portion is formed integrally with the reflector. 5. The cord locking portion has a pair of locking pieces opposed to each other with a gap capable of accommodating the cord, and protrudes from the tip of each locking piece toward each other and is narrower than the width of the cord. The lighting device according to claim 1, further comprising a pair of locking claws opposed to each other at an interval. 6. The luminaire according to claim 5, wherein the luminaire is formed in a curved shape from the locking piece to the inner surface of the locking claw. 7. The luminaire according to claim 1, wherein the lamp is a ring-shaped fluorescent lamp having a tube diameter of about 15 to 20 mm. 8. The lighting fixture according to claim 1, further comprising a shade surrounding a lower surface of the fixture main body.