JPH10134622A - lighting equipment - Google Patents

Abstract

(57) [Summary] [PROBLEMS] When attaching a shade (3) to an instrument main body (1), it is possible to grasp the engagement / disengagement state between an engaging portion (33) of the shade (3) and a support (22) of the instrument main body (1). SOLUTION: A tool body 1 is provided with an annular tool-side attachment portion 13, a shade 3 is provided with an annular shade-side attachment portion 32, and the shade-side attachment portion 32 can be engaged with the tool-side attachment portion 13. The support 22 is provided on the instrument-side mounting portion 13 and the engagement portion is provided on the shade-side mounting portion 32.
The engaging portion 33 is engaged with the support 22 by rotating the shade 3 in one direction, and the engagement is released by rotating the shade 3 in the other direction. There is provided a contact portion 35 with which the support 22 engaged with and disengaged from the engaging portion 33 is engaged so as to be able to climb over. In the process of engaging and disengaging the engaging portion 33 from the support 22, the contact portion 35 comes into contact with the support 22 and climbs over, and at this time, the engaging portion 33 and the support 22
You can grasp the disengagement state with.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, for example, a plurality of lamps and lighting devices are arranged on the lower surface of a disk-shaped appliance body, and these lamps and lighting devices are covered with a shade having an opening. There are lighting fixtures designed to be mounted on

[0003] In such a lighting device, the inside of the peripheral portion of the device main body or the like is used as an annular device-side mounting portion for mounting a shade, and a plurality of supports are provided along the inside of the device-side mounting portion. Further, an annular shade-side mounting portion fitted to the device-side mounting portion of the device main body is provided around the opening of the shade, and a plurality of engaging portions are protruded inside the shade-side mounting portion. .

[0004] Then, the shade is pushed up to fit the shade-side attachment portion into the instrument-side attachment portion of the instrument main body, and the shade is rotated in one direction while pushing up the shade, so that each engaging portion is placed on each support. When the shade is turned to the facing position, the shade is released from being pushed up, and each engaging portion is engaged with each support and hooked, so that the shade is attached to the instrument body.

[0005]

However, in the conventional lighting fixture, when the shade is attached to the fixture main body, the engaging portion of the shade and the engaging portion of the support of the fixture main body are covered with the shade and cannot be seen. Even when the shade is rotated, it is difficult to determine whether the engagement portion of the shade is engaged with the support. Therefore, if the lifting of the shade is released after the turning operation of the shade, the engaging portion of the shade is not engaged with the support, or the engaging portion of the shade is engaged with the support. There is a problem that the shade is forcibly turned to damage the shade.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a lighting fixture that can easily grasp the engagement / disengagement state between the engaging portion of the shade and the support of the fixture main body when the shade is attached to the fixture main body. The purpose is to provide.

[0007]

According to a first aspect of the present invention, there is provided a lighting apparatus including a fixture body having an annular fixture-side attachment portion, and an annular shade-side attachment detachable by turning the fixture body with respect to the fixture-side attachment portion. A shade having a portion, a plurality of supports provided on an instrument-side attachment portion of the instrument body, and a plurality of supports provided on the shade-side attachment portion of the shade corresponding to the respective supports, in one direction of the shade with respect to the instrument body. An engagement portion provided to correspond to the engagement portion of the shade, the engagement portion being supported by being engaged with the support by the rotation of the support member, and being disengaged by the rotation in the other direction; And a contact portion with which the support comes in contact with the support in a process of being disengaged from the support.

The shade-side attachment portion of the shade is fitted to the appliance-side attachment portion of the appliance body, and the shade is rotated in one direction so that the engagement portion of the shade engages with the support of the appliance body, To the instrument body. By rotating the shade attached to the instrument body in the other direction, the engaging portion of the shade is released from the support of the instrument body, and the shade can be removed from the instrument body. And, in the process where the engaging portion of the shade is disengaged from the support of the instrument main body, the contact portion of the shade comes in contact with the support and climbs over the support. It is possible to grasp the engagement / disengagement state between the engaging portion of the shade and the support of the instrument main body by the feeling and sound of the moderation.

According to a second aspect of the present invention, in the lighting apparatus according to the first aspect, the engaging portion has one end inclined in the rotating direction in which the support is disengaged and inclined to the fixture main body and the other end is shaded. It has a slope inclined to the side,
By engaging the engaging portion of the sail with the support, the shade is moved to the appliance body side via the inclined surface that engages with the support to enhance the adhesion.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a lighting device according to an embodiment of the present invention.

FIG. 1 is a perspective view of a part of a mounting structure of a lighting device main body and a shade, and FIG. 2A is a disengaged state of a part of a mounting structure of a lighting device main body and a shade. Bottom view, FIG. 2 (b) is a bottom view of the fitting state of the fixture body and the shade of the lighting fixture, and FIG. 3 is a cross-sectional view of part of the fixture body of the lighting fixture and the shade. FIG. 4 is a perspective view of the lighting fixture in an exploded state, and FIG. 5 is a sectional view of the lighting fixture.

Referring to FIGS. 4 and 5, the lighting fixture comprises a fixture main body 1, four lamps 2, and shades 3, and uses four ring-shaped fluorescent lamps 4 having the same lamp power (same diameter). It is configured as a ceiling-mounted lighting fixture.

The apparatus main body 1 has a disk-shaped substrate 11, which is bent downward from the peripheral edge of the substrate 11 to form an annular edge 12, and the shade 3 is fitted inside the edge 12. An annular instrument-side attachment portion 13 that is attached by rotating operation is formed.

At the center of the appliance body 1, a simple attachment type appliance attachment portion 14 which is attached to, for example, a hanging ceiling (not shown) installed on the ceiling surface is formed.
The lamp body 2 is attached to the peripheral portion of the instrument body 1 centered on the lamp body 2.

The lamp body 2 has a reflector 15, and this reflector 15
A lamp socket 16 and a lamp holder 17 are protruded from the lamp socket 16. The lamp socket 16 and the lamp holder 17 hold the ring-shaped fluorescent lamp 4, and the base of the ring-shaped fluorescent lamp 4 is connected to the lamp socket 16.

At three locations near the peripheral edge of the appliance body 1, shade support mechanisms 21 are provided facing the appliance side attachment portion 13, respectively. As shown in FIGS. 1 to 3, the sail support mechanism 21 has a support 22 and a case 23 in which the support 22 is engaged so as to advance and retreat. The support 22 is formed in a flat claw shape, has chamfers 24 on both sides of the distal end, and has a base end side slidably engaged in the case 23. Case 23
A guide shaft 25 for guiding the advancing and retreating of the support 22 is disposed on the inner side surface of the case 23 facing one side of the case 23 and facing the opening. Guide shaft 25
A coil spring 26 that urges the support 22 in a direction in which the support 22 moves out of the case 23 is mounted around the periphery. The position where the support 22 advances from the case 23 is regulated by a stopper (not shown) or the like.

The case 23 is mounted on a mounting frame 27 having a substantially U-shaped cross section. Both ends of the mounting frame 27 are mounted on the lower surface of the instrument body 1 by screws. The mounting frame 27 is mounted inside the device-side mounting portion 13 facing the inner surface of the edge portion 12 of the device main body 1, and is disposed at a position where the tip of the support 22 advances into the device-side mounting portion 13.

As shown in FIGS. 4 and 5, the shade 3 is made of, for example, a translucent milky white synthetic resin, and has a plurality of lamps 2 and a ring-shaped fluorescent lamp 4 attached to the fixture body 1. And is attached to the instrument body 1.
An opening 31 having a diameter slightly smaller than the diameter of the instrument body 1 is formed on the upper surface of the seed 3, and the edge of the instrument body 1 extends from the edge of the opening 31.
A shade-side mounting portion 32 is formed so as to be able to fit into the device-side mounting portion 13 inside the edge portion 12.

As shown in FIG. 1 to FIG. 3, on the inner surface side of the shade-side mounting portion 32, corresponding to the position of each support 22 of the instrument body 1, it is possible to engage with the support 22. The joint portion 33 is integrally formed so as to protrude (project). An engagement surface 34 is formed on the lower surface of the engagement portion 33 as an inclined surface that engages with the support 22. The engagement surface 34 is provided in the rotation direction in which the support 22 of the shade 3 is disengaged. One end side is formed on an inclined surface which is inclined upward to the instrument body 1 and the other end side is inclined downward toward the shade 3.

One end of the lower surface of the engaging portion 33, that is, the support 22
A contact portion 35 with which the support 22 comes in contact with the support 22 in a process of being disengaged from the support 22 is integrally bulged (projected) at a portion where the support 22 is disengaged. A stopper is formed on one end surface of the abutting portion 35 so as to make it easier for the support member 22 to climb over the support member 22. The surface 37 is formed.

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

To attach the shade 3 to the appliance body 1 attached to the ceiling surface or the like, the shade side attachment portion of the shade 3
32 is inserted and fitted from below into the device-side mounting portion 13 inside the edge portion 12 of the device main body 1, and the shade 3 is rotated in the mounting direction A. The mounting direction A is counterclockwise when viewed from above in FIG.
It is clockwise as viewed from below in FIG.

When the shade 3 rotates in the mounting direction A, the inclined surface 36 of the contact portion 35 comes into contact with the inclined surface 24 of the support 22, and the support 22 resists the urging of the coil spring 26 to the case. The contact portion 35 rotates while retreating into 23. When the contact portion 35 moves to a position where it comes off the support 22, that is, the contact portion 35
When the vehicle gets over the support 22, the support 22 advances by the bias of the coil spring 26, and the tip of the support 22 enters the lower side of the engaging portion 33.

For this reason, the engaging surface 34 of the engaging portion 33 is
Upwardly, the shade 3 is supported by the instrument body 1.

To remove the shade 3 attached to the instrument body 1, the shade 3 is rotated in a direction opposite to the attaching direction A. Due to the rotation of the seed 3 in the removal direction, the stopper surface 37 of the contact portion 35 comes into contact with the inclined surface 24 of the support 22, and the support 22 enters the case 23 against the bias of the coil spring 26. The contact portion 35 rotates while moving backward. When the contact portion 35 moves to a position where it comes off from the support 22, that is, when the contact portion 35 gets over the support 22, the support 22 advances by the bias of the coil spring 26, and the engaging portion 33 moves to the support 22. Get off. By moving the shade 3 downward as it is, the shade 3 is separated from the instrument body 1.

As described above, in the process of engaging and disengaging the engaging portion 33 of the shade 3 with the support 22 of the instrument body 1, the contact portion 35 of the shade 3
Abuts on the support 22 and gets over, so that the engaging part 33 of the shade 3 and the support 22 of the instrument body 1 are in contact with each other by the feeling and sound of the moderation when the abutment part 35 comes into contact with and gets over the support 22. The state of engagement and disengagement can be easily grasped, and the shade 3 can be securely attached to the instrument body 1.

In the state where the engaging portion 33 of the shade 3 is engaged with the support 22 of the instrument main body 1, even if the shade 3 moves in the removing direction due to vibration or the like, the stopper surface of the abutting portion 35 is not removed.
Since the movement of the shade 3 is restricted by contact with the 37, it is possible to prevent the shade 3 from being displaced with respect to the appliance body 1.

Further, since the engaging surface 34 of the engaging portion 33 is provided on the inclined surface, even when the engaging surface 34 of the engaging portion 33 is engaged with the support 22, the shade 3 is further moved in the mounting direction. A, the shade 3 is moved toward the instrument body 1 by the inclination of the engaging surface 34 that engages with the support 22, and the edge 12 of the instrument body 1 and the shade 12 are moved as shown in FIG. The adhesion to the upper surface of the shade 3 can be enhanced, and dust and pests can be prevented from entering the inside of the shade 3.

Since the edge 12 of the appliance body 1 and the upper surface of the shade 3 are in close contact with each other and the movement of the shade 3 toward the appliance body 1 is restricted, the movement of the shade 3 in the mounting direction A is prevented. Be regulated.

[0030]

According to the first aspect of the present invention, in the process in which the engaging portion of the shade is disengaged from the support of the fixture main body, the contact portion of the shade comes in contact with the support and gets over the support. The moderation feel and sound when the abutting part comes in contact with the support and gets over can easily grasp the disengagement state between the engagement part of the shade and the support of the appliance body, and securely attach the shade to the appliance body. be able to.

According to the luminaire of the second aspect, in addition to the effect of the luminaire of the first aspect, one end of the engaging portion in the rotation direction in which the support is disengaged is inclined toward the main body of the luminaire. In addition, since the other end side is provided with an inclined surface inclined toward the shade side, by engaging the engagement portion of the shade with the support,
The shade can be moved to the appliance body side through the inclined surface that engages with the support to improve the adhesion, and dust and pests can be prevented from entering the inside of the shade.

[Brief description of the drawings]

FIG. 1 is a perspective view of a part of a fixture main body and a shade mounting structure of a lighting fixture showing an embodiment of the present invention.

FIG. 2 is a bottom view of a part of a mounting structure portion of the lighting device with a fixture body and a shade, wherein (a) is a bottom view of a disengaged state;
(b) is a bottom view of the engagement state.

FIG. 3 is a cross-sectional view of a part of a mounting structure portion of the lighting device with the fixture body and the shade.

FIG. 4 is a perspective view of the lighting fixture in an exploded state.

FIG. 5 is a cross-sectional view of the lighting device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Instrument main body 3 Sed 13 Instrument side attachment part 22 Support body 32 Sade side attachment part 33 Engagement part 34 Engagement surface as an inclined surface 35 Contact part

Claims (2)

[Claims] 1. An appliance body having an annular appliance-side attachment portion, a shade having an annular shade-side attachment portion detachable by turning the appliance body with respect to the appliance-side attachment portion, and an appliance-side attachment of the appliance body A plurality of supports provided on the part; a plurality of supports provided on the shade side mounting portion of the shade corresponding to the respective supports; the support is engaged with the support by rotating the shade in one direction with respect to the appliance body. And an engaging portion that is disengaged by rotation in the other direction, and is provided corresponding to the engaging portion of the shade, and the support is disengaged from the support when the support is disengaged from the support. A lighting device, comprising: a contact portion that comes into contact with the vehicle so as to be able to get over the vehicle. 2. The engaging portion has an inclined surface in which one end in the rotation direction in which the support is disengaged is inclined toward the appliance body and the other end is inclined toward the shade. The lighting fixture according to claim 1.