JP3130861B2 - Fixing device for ceiling-mounted lighting fixtures - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for mounting a ceiling-mounted lighting fixture.

[0002]

2. Description of the Related Art Conventionally, an arc-shaped blade insertion hole is formed on the lower surface of a hook-and-wall ceiling outlet attached to a ceiling surface, and a blade is protruded from an upper surface of a substantially rectangular body of a hook plug. Is equipped with a stopper integrally formed with a lock part, a push button, and a spring part, and at the position where the blade is introduced into the blade insertion port, the lock part is inserted into the blade insertion port, and the rotation that removes the body from the hooking ceiling outlet can be performed. The hooking plug is designed to prevent the hooking plug from dropping off and to easily remove the hooking plug in one operation by matching the rotation direction of removing the body from the hooking ceiling outlet and the direction of applying stress to the push button. Lock structure is 5-50
No. 112 has been proposed.

[0003] When a hanging-type lighting device is mounted using this device, the device body is mounted on the tip of a cord extending from the hook plug, so that the device can be mounted relatively easily regardless of the shape of the hook plug. be able to. However, in the case of a direct-attached lighting fixture, since it is very close to the ceiling surface, a hook plug protruding from the ceiling surface is fitted into a hole formed on the upper surface of the fixture body, and the outer surface of the hook plug is fitted. And the engaging portion provided on the inner periphery of the hole of the instrument body is engaged with the male and female, or the instrument body is fixed using a fixing tool such as a bolt.

Therefore, unless the tool main body is arranged at an accurate mounting position with respect to the hook plug, the hook having a flat rectangular shape can not be inserted into the square hole as in the above-described conventional device.

[0005] Further, it is impossible to engage the engaging portions together or screw the bolts together. It is very difficult.

[0006]

SUMMARY OF THE INVENTION According to the present invention, the upper body and the lower adapter can be easily attached to the upper adapter regardless of the direction in which the appliance body is arranged in the plane direction. An object of the present invention is to provide a mounting device for a lighting device directly mounted on a lower ceiling, in which an engagement releasing operation is simple.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, a mounting device for a ceiling-mounted lighting fixture of the present invention removably mounts a flat circular upper adapter to a ceiling outlet fixed to a ceiling surface. The lower adapter is attached to the top plate of the instrument body whose upper surface is in contact with the ceiling outlet, a circular hole is formed in the lower adapter to fit the upper adapter, and a step is formed around the inner periphery of the circular hole of the lower adapter. A plurality of locking claws are slidably mounted on the upper adapter in the radial direction so as to be slidable in a radial direction, and a stepped portion is detachably engaged with the stepped portion at an outer peripheral end of the locking claw. A locking portion is provided, and a lever for sliding operation of the locking claw protrudes from a lower surface of the upper adapter.

[0008] By making the upper adapter and the hole for fitting the same into a plane circular shape, the upper adapter is fitted into the circular hole of the lower adapter irrespective of the horizontal orientation of the instrument body, and By forming a step on the circumference along the circumferential direction and providing a plurality of locking claws on the outer periphery of the upper adapter, the locking claw is locked to the step at an arbitrary position in the circumferential direction. In addition, since the locking claw levers are located close to each other, they are held down with one finger and pulled toward each other, and only by sliding and retracting the locking claw, the stepped portion and the locking claw are disengaged, and the instrument body is removed. Removed from upper adapter.

The locking claw may be urged to the outer peripheral side so that the tip end surface of the stepped locking portion is inclined downward and inward. In this way, by simply aligning the circular holes of the upper adapter and the lower adapter and pushing up the instrument body from below, the locking claw is pushed by the step portion and once protrudes again by the urging force after being retracted,
As a result, the step and the locking claw are automatically engaged. It is also possible to form two upper and lower step locking portions at the outer peripheral end of the locking claw. This allows the lower adapter to be engaged with the upper adapter, whose projection height from the ceiling surface changes, regardless of whether the ceiling outlet is an embedded type or an exposed type.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1 , a lighting fixture A is mounted on a ceiling outlet 2 fixed to a ceiling surface 1, an upper adapter 4 detachably mounted on the ceiling outlet 2, and an upper surface 1 on the ceiling surface. That is, it includes an appliance body 8 which is in contact with the ceiling outlet 2 and is supported by the upper adapter 4, and a lower adapter 9 provided on the upper surface of the appliance body 8 and engaged with the upper adapter 4. An arc-shaped insertion port 1 is provided on the lower surface of the ceiling outlet 2.
2 are provided, a wide portion 13 is formed at one end of the insertion port 12, and a connection terminal (not shown) is provided behind the narrow portion 14 of the insertion port 12.

The upper adapter 4 is formed in a circular shape when viewed from the top, and as shown in FIGS.
Are provided as a pair. When the upper adapter 4 is rotated after the terminal plate 3 is inserted into the wide portion 13 of the insertion opening 12 of the ceiling outlet 2, the terminal plate 3 is inserted.
2, the connection terminal of the ceiling outlet 2 and the terminal plate 3 are electrically and mechanically connected, and the upper adapter 4 is attached to the ceiling outlet 2.

Also, as shown in FIG.
The cord 15 connected to the terminal plate 3 extends from the lower surface of the cord 15 and one connector 6 is attached to the tip of the cord 15 as shown in FIG. Further, as shown in FIG. 3, a push button 5 for unlocking the connection terminal of the ceiling outlet 2 and the terminal plate 3 is provided on a part of the outer peripheral surface of the upper adapter 4. When the adapter 4 is rotated, the terminal plate 3 reaches the wide portion 13 of the insertion slot 12 so that the upper adapter 4 can be removed from the ceiling outlet 2.

On the outer peripheral surface of the upper adapter 4, locking claws 10 are respectively provided at both ends of the diameter so as to be able to protrude and retract, and as shown in FIG. A spring 22 is arranged along the line. The locking claw 10 is slidably disposed in the radial direction, and has a step locking portion 23 provided at an outer peripheral end thereof and a lever 11 protruding from the lower surface. The distal end surface of the step locking portion 23 is inclined downward and inward. Under normal conditions, the step locking portion 23 of the locking claw 10 protrudes from the outer peripheral surface of the upper adapter 4 by being pressed by a spring. ing.

The lever 11 of the locking claw 10 projects downward through a guide hole 25 formed in the bottom surface of the upper adapter 4. When the lever 11 is pinched and moved toward the center, the locking claw 10 slides against the urging force of the spring 22, and as a result, the step locking portion 23 retreats into the upper adapter 4. It has become.

A light source (not shown) is provided on the appliance body 8, and a cord 15 'connected to the light source is provided on the upper surface of the appliance body 8, as shown in FIG.
The other connector 7 detachably engaged with one connector 6 of the upper adapter 4 is attached to the tip of 5 '. A hole for inserting the upper adapter 4 is formed in the center of the top plate of the instrument body 8, and the lower adapter 9 is attached so as to match the hole.

The lower adapter 9 has a mounting plate 18 superposed on the top plate of the instrument body 8 and a projection 19 mounted on the lower surface thereof. As shown in FIG.
A circular hole 20 corresponding to the hole formed in the center of the top plate of the instrument body 8 is formed in the center of the protruding portion 19. Also,
The flange 16 is formed on the inner circumferential surface of the circular hole 20 over the entire length in the circumferential direction.
Are provided, and a flat step 17 is formed on the lower surface of the flange 16. As described above, when the locking claw 10 is provided on the upper adapter 4 and the step 17 is formed on the lower adapter 9,
The height of the lower adapter 9 can be reduced because no spring is disposed therein.

The lighting fixture A is mounted as follows.
One connector 6 of the upper adapter 4 is connected to the other connector 7 of the instrument body 8, and the terminal plate 3 of the upper adapter 4 is inserted into the wide portion 14 of the insertion port 12 of the ceiling outlet 2 attached to the ceiling surface 1. After that, the upper adapter 4 is rotated to attach the upper adapter 4 to the ceiling outlet 2.

Next, when the circular hole 20 of the lower adapter 9 is aligned with the upper adapter 4 and the instrument main body 8 is pushed up, the step portion 23 of the locking claw 10 of the upper adapter 4 is inserted into the step portion 23 of the lower adapter 9. 17 approaches from below, the tip side surface of the step locking portion 23 is pushed by the step 17, and the locking claw 10 retreats into the upper adapter 4. When the step 17 passes above the step locking section 23, the locking claw 10 is pushed by the spring and moves in the outer peripheral direction again. As a result, as shown in FIG. The step locking portion 23 is engaged with the step 17, and the instrument body 8 is attached to the upper adapter 4.

In order to remove the instrument body 8 when exchanging the light source, the lever 11 of the locking claw 10 is picked with one finger and pulled toward the center along the guide hole 25.
0 compresses the spring, and the step locking portion 23 retreats into the upper adapter 4, the engagement between the step locking portion 23 and the step 17 is released, and the instrument body 8 is released from the upper adapter 4. When removing the upper adapter 4, the push button 5 is pressed down and the upper adapter 4 is rotated in the opposite direction to the mounting, and when the terminal plate 3 reaches the wide portion 13 of the insertion slot 12, the upper adapter 4 is removed from the ceiling outlet 2. Just pull it out.

[0020] the outer peripheral side end portion of the locking claw 10 to form a stepped portion engaging portion 23,23' of upper and lower stages (see FIG. 8). By doing so, even if the distance from the ceiling surface 1 to the lower surface of the upper adapter 4 changes depending on the type of the ceiling outlet 2, the lower adapter 9 can be attached without difficulty. That is, when the ceiling outlet 2 is an exposed type and the upper adapter 4 protrudes greatly from the ceiling surface 1, the step 17 of the lower adapter 9 is engaged with the upper step locking portion 23. When the ceiling outlet 2 is a recessed type and the upper adapter 4 does not protrude much from the ceiling surface 1, the step 17 of the lower adapter 9 is connected to the lower step locking portion 23.
′.

[0021]

[Effect of the Invention] After attaching a small and easy-to-handle upper adapter to the ceiling outlet mounted on the ceiling surface,
When the upper adapter is aligned with the circular hole of the lower adapter and the instrument body is pushed up, the locking claw of the lower adapter is locked at any position on the step of the upper adapter, so the upper adapter and the instrument body are strictly There is no need for alignment, and therefore, the instrument body can be easily attached directly to the ceiling surface regardless of its horizontal orientation.

By simply pushing up the instrument body, the stepped portion of the engaging claw is automatically engaged with the stepped portion, so that the attachment of the instrument body is further simplified. Also , the lower adapter can be engaged when the upper adapter is attached to any of the embedded and exposed ceiling outlets. Furthermore, a small locking claw that is separate from the lower adapter
Since it is sufficient to form the stepped portion locking portion, the processing is simpler as compared with the case where the two stepped portions are formed over the entire outer peripheral length of the upper adapter.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a mounting device for a ceiling-mounted lighting fixture according to a first embodiment of the present invention.

FIG. 2 is a top view of the upper adapter according to the first embodiment of the present invention.

FIG. 3 is a side view of the above.

FIG. 4 is a bottom view of the above.

FIG. 5 is a sectional view of a main part of the above.

FIG. 6 is a bottom view of the lower adapter according to the first embodiment of the present invention.

FIG. 7 is a partially cutaway side view of the mounting device for a ceiling-mounted lighting fixture showing the first embodiment of the present invention.

FIG. 8 is a partially broken side view of the upper adapter according to the second embodiment of the present invention.

[Description of Signs] A Lighting fixture 1 Ceiling surface 2 Ceiling outlet 3 Terminal board 4 Upper adapter 5 Push button 6 One connector 7 The other connector 8 Tool body 9 Lower adapter 10 Locking claw 11 Lever 12 Insertion opening 13 Wide part 14 Narrow part 15, 15 'Cord 16 Flange 17 Step part 18 Mounting plate 19 Projection part 20 Circular hole 22 Spring 23, 23' Step part locking part 24 Hollow convex part 25 Guide hole

Claims (1)

(57) [Claims] 1. A flat circular upper adapter is detachably attached to a ceiling outlet fixed to a ceiling surface, and a lower adapter is attached to a top plate of an instrument body whose upper surface is in contact with the ceiling outlet, and the lower adapter is attached to the lower adapter. A circular hole for fitting the upper adapter is formed, a step is formed on the inner periphery of the circular hole of the lower adapter over the entire length in the circumferential direction, and a plurality of locking claws are slidable in the upper adapter in the radial direction. At the outer peripheral end of the locking claw, the distal end surface detachably engaged with the stepped portion is inclined downward and inward.
The lower two steps are provided, and the locking claws are provided on the outer periphery.
A mounting device for a ceiling-mounted lighting fixture, characterized in that a lever urged to the side and slidingly operating a locking claw protrudes from a lower surface of the upper adapter.