JPH05217411A - Ceiling luminaire - Google Patents

Abstract

PURPOSE:To provide a luminaire easily mounted on a ceiling by providing a rosette, the claws of which are protruded on the outer periphery, a main body having an opening, which is penetrated by the rosette, and a fixed member having a tilted groove on the peripheral side plate. CONSTITUTION:An opening 4 and a notch 4a of a fitting main body 3 are matched with right and left claws 2 of a rosette 1 fixed on the surface of a ceiling, and the main body 3 is pushed up and is turned to the right, and the fitting main body 3 is tentatively mounted on the rosette 1. A mounting ring 10 is abutted, rotated, and horizontal parts 2b of the claws of the rosette are inserted into grooves 11 from the upper end surface of a side plate 10a, and the ring is turned to the right and is fastened. Wedge parts 12 of the grooves 11 of the mounting ring 10 are put on horizontal parts 2a of the claws, and the main body 3 is pushed up and is fixed to the surface of the ceiling. Since there is no obstacle above the front end raised parts of the claws 2, even when there are gaps between the claws 2 and the surface of the ceiling, the ring 10 is pressed to the surface of the ceiling without tilting the main body 3, and the surface of the ceiling thus will not be injured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling lighting fixture mounted on a ceiling such as a room in a building, and more particularly to a ceiling lighting fixture directly mounted using a rosette with a hooking claw fixed to the ceiling.

[0002]

2. Description of the Related Art Generally, a direct-mounting type ceiling lighting fixture of this type is disclosed in, for example, Japanese Utility Model Publication No. 56-36010. An example of this is not shown,
A box is embedded in the ceiling surface in advance, and an embedded type rosette with a hook is fixed to the box so that it partially projects. on the other hand,
A substantially similar opening is formed in the center of the device body (chassis) through which the rosette and the hooking claw pass, and a rib is bent downward at the inner peripheral edge of the opening, and the rib height is rounded. The wedge shape is formed by tapering so that the height gradually increases in the circumferential direction. The appliance body is fitted into the rosette and applied to the ceiling surface, and the appliance body is rotated in this state, and the wedge portion of the rib at the inner peripheral edge of the opening is engaged so as to ride on the hooking claw of the rosette. By pushing up, a pushing force is obtained, and the instrument main body is fixed in a state of being pressed against the ceiling surface.

The fixture body thus installed is provided with necessary equipment such as mounting a lamp through a lamp socket, and the hook ceiling of the switch is inserted into the rosette for electrical connection. Finally, a shade (lighting cover) is provided. The ceiling lighting equipment has been completed.

As another example, as shown in FIGS. 7 and 8, the embedded rosette 1 is fixed to the box B previously embedded in the ceiling surface A and is attached so as to partially project downward as described above. .. The rosette 1 is provided with hooking claws 2 on both sides of the outer circumference. On the other hand, the instrument body (chassis)
A substantially similar opening 4 through which the rosette 1 and the hooking claw 2 penetrate is formed in the central portion of 3, and the device body 3 is fitted into the rosette 1 and applied to the ceiling surface A. In this state, the mounting ring 5 as a separately formed fixing member is turned from the lower side of the device body 3 to the hooking claw 2 of the rosette 1 and is retightened, whereby the device body 3 is pressed and fixed to the ceiling surface A.

That is, the attachment ring 5 is like a cap of a cylindrical container, and the instrument body 3 is provided at the center of the top plate 5a.
The same rosette insertion hole 6 as the opening 4 is formed, the rib 7 is bent downward at the inner peripheral edge of the insertion hole 6, and the height of this rib is set to the hook claw insertion hole portion 6a of the insertion hole 6. The taper shape is formed so as to gradually increase in the circumferential direction from the wedge portion 8. Such an attachment ring 5 is shown in FIG.
As shown in Fig. 5, the lower part of the instrument body 3 fitted in the rosette 1 is brought into contact with the lower part of the instrument body 3, and the mounting ring 5 is rotated in this state,
The wedge portion 8 of the rib 7 at the inner peripheral edge is engaged with the hooking claw 2 of the rosette 1 so as to ride up as shown in FIG. It is fixed in a state of being pressed against. In the same manner as described above, a lamp and other necessary equipment (not shown) are mounted on the fixture body 3 and a shade is provided to complete the ceiling lighting fixture.

[0006]

By the way, in the case of the above-mentioned conventional direct-mounting type ceiling lighting fixture, in the case where the former fixture body is integrally provided with a wedge portion for engaging with the hooking claw of the rosette, It is necessary to rotate the main body of the appliance largely, and at that time, due to the burial of the rosette or the bending of the hooking claws, there is variation in the gap between the hooking claws on both sides of the rosette and the ceiling surface. However, there is a problem that the instrument body is tilted and the instrument body is rubbed against the ceiling surface and damaged when the instrument body is rotated.

In the latter case of the type using the attachment ring 5 shown in FIGS. 7 and 8, the attachment ring 5 is a rib-shaped wedge portion that is downwardly directed to the inner peripheral edge of the rosette insertion hole 6 at the center of the top plate portion 5a. Since the mounting ring 5 is applied to the lower surface of the instrument body 3 and rotated to engage the wedge portion 8 with the hooking claw 2 of the rosette 1, the hooking claw of the rosette 1 is provided. The gap between the upper end of the tip rising portion of 2 and the ceiling surface A must be at least the sum of the plate thickness of the instrument body 3 and the plate thickness of the top plate portion 5a of the mounting ring 5. For this reason, as described above, there is often a variation in the gap between the hooking claw 2 and the ceiling surface A due to the burying construction or the bending of the hooking claws, etc., and the situation is such that the clearance cannot be attached due to the narrow gap. There are problems that often occur.

The present invention has been made in view of the above circumstances, and an object thereof is to worry about damage to the ceiling surface due to tilting of the instrument body even if there is some variation in the gap between the hooking claw of the rosette and the ceiling surface. It is to provide a ceiling lighting fixture which is free from the above and can be mounted if the gap is the thickness of the main body of the fixture, and which is easy to install on the ceiling.

[0009]

In order to achieve the above-mentioned object, a ceiling luminaire of the present invention has a rosette fixed to the ceiling surface and having hooking claws protruding from the outer periphery, and an opening through which the rosette and the hooking claws pass. And a peripheral side plate part having an inclined groove inclined downward from the upper end surface in the circumferential direction, and the horizontal part of the hooking claw of the rosette is inserted into the inclined groove to rotate. Therefore, a fixing member that pushes up the instrument body to the ceiling surface is provided.

[0010]

According to the ceiling luminaire having the above-mentioned structure, the instrument body is fitted into the rosette with the hooking claws fixed to the ceiling surface, and the rosette and the hooking claws are passed through the opening of the instrument body. A fixing member is applied from the lower side of the instrument body, and is rotated and tightened so that the horizontal portion of the hooking claw of the rosette enters the inclined groove from the upper end surface of the peripheral side plate portion of the fixing member. With this, the fixing member pushes up and fixes the instrument body to the ceiling surface. At this time, the upper part of the inclined groove of the fixing member only rides on the horizontal part of the hooking claw of the rosette, and there is nothing on the tip rising part of the hooking claw. Even if the gap between the upper end and the ceiling surface is small due to variations or the like, the fixing member can be rotationally tightened as long as the gap is the thickness of the instrument body. Further, even if there is some variation in the gap between the hooking claw and the ceiling surface, the fixture body can be pressed against the ceiling surface without tilting by the pushing up of the fixing member, and it is not necessary to rotate the fixture body largely. Therefore, there is no need to worry about damaging the ceiling surface.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. In the figure, the same components as those shown in FIGS. 7 and 8 are designated by the same reference numerals to simplify the description.

First, the basic structure of the ceiling lighting fixture of the present invention will be described with reference to FIGS. 1 and 2. Here, as shown in Figure 1,
An instrument main body having an embedded rosette 1 having hooking claws 2 projecting from both sides of the outer periphery, and an opening 4 with cutout recesses 4a, 4a of a substantially similar shape through which the rosette 1 and the hooking claw 2 penetrate in the central portion. A (chassis) 3 and a mounting ring 10 as a fixing member are provided. The mounting ring 10 is a rectangular cylindrical body, and has an appropriate length of inclination from the upper end surface toward the circumferential direction (counterclockwise when viewed from below) at two opposite positions of the cylindrical peripheral side plate portion 10a. The groove 11 is provided, and the upper side of each inclined groove 11 of the peripheral side plate portion 10a is a wedge portion 12.

As shown in FIG. 2 (a), however, the cutout recesses 4a of the opening 4 of the instrument body 3 are attached to the left and right hooking claws 2 of the rosette 1 which are fixed to the ceiling surface A in advance through the box B.
Then, the device main body 3 is pushed up so as to be fitted into the rosette 1, and the rosette 1 and the hooking claws 2 penetrate the opening 4 and each notch recess 4a of the device main body 3. Here, the instrument body 3 is turned slightly to the right, and the notch recess 4a is displaced from the hooking claw 2 so that the instrument body 3 is temporarily fixed so as not to fall out of the rosette 1.

Then, the mounting ring 10 as a fixing member is applied from the lower side of the instrument main body 1, and while rotating the mounting ring 10, the above-mentioned upper side of the peripheral side plate portion 10a is inserted into each of the slanted grooves 11. The horizontal part 2a of the hooking claw 2 of the rosette 1 is made to enter, and then it is rotated to the right and tightened until it stops. 2B, the upper wedge portion 12 of the inclined groove 11 of the mounting ring 10 rides on the horizontal portion 2a of the hook 2 and pushes and fixes the instrument body 3 on the ceiling surface A.

That is, the mounting ring 10 has the peripheral side plate portion 10a.
The upper wedge portion 12 of the inclined groove 11 of the hook is the hook 2 of the rosette 1.
Nothing exists on the tip rising part 2b of the hooking claw 2 only as it rides on the horizontal part 2a. For this reason, even if the gap between the upper end of the tip end rising portion 2b of the hook 2 and the ceiling surface A is small due to variations or the like, if the gap is the thickness of the instrument body 3, the mounting ring 10 can be rotationally tightened. Becomes Further, even if there is some variation in the gap between the hook 2 and the ceiling surface A, the fixture body 3 can be pressed against the ceiling surface A without tilting by pushing up the mounting ring 10, and the fixture body 3 can be enlarged. Since there is no need to rotate, there is no need to worry about damaging the ceiling surface A.

Next, a concrete embodiment of the ceiling lighting fixture of the present invention will be described with reference to FIGS. First, as shown in FIG. 3, an embedded type rosette 1 having hooking claws 2 projecting on both sides of the outer periphery and a notch recess 4a of a substantially similar shape through which the rosette 1 and the hooking claw 2 penetrate in the central portion, as shown in FIG. , 4a
An instrument body (chassis) 3 having an attached opening 4 and a mounting ring 20 as a fixing member are provided.

In the figure, 30 is a plastic outer frame which covers the upper surface of the instrument body 3, 31 is a push-button type shade attachment provided on the outer frame 30, and 32 is a drawstring stay. Reference numeral 33 is a lamp socket unit for mounting a plurality of fluorescent lamps (not shown), and 34 is a hook ceiling 35.
Is a pull switch unit, 36 is an inverter unit, and 37 is a shade (lighting cover).

Here, the embedded rosette 1 having the hooking claws 2 projecting on both outer sides is embedded and fixed to the ceiling surface A via the box B so as to partially project downward. The instrument body (chassis) 3 is formed from a single thin plate, and is formed by bending the central portion 3a so as to bulge into a circular shape, and the rosette 1 is attached to the central portion of the top plate portion of the central portion 3a. A circular opening 4 is formed therethrough, and notched recesses 4a through which the hooking claw 2 penetrates are formed at four equally spaced peripheral portions of the opening 4, and a peripheral portion 3b of the opening 4 is slightly cross-sectioned. It is bent in a Z shape and slightly lowered.

As shown in FIGS. 4 and 5, the mounting ring 20 serving as the fixing member is provided with a plurality of recessed operation flanges projecting in a brim shape on the outer periphery of the lower end of the peripheral side plate portion 21 having a rectangular cylindrical shape and having a relatively large thickness. A synthetic resin integrally molded product having a portion 22, which has an appropriate length that descends from the upper end surface in the circumferential direction (counterclockwise when viewed from below) at four equally spaced intervals on the peripheral side plate portion 21. The inclined groove 23 is formed, and the upper side of each inclined groove 23 of the peripheral side plate portion 21 is a wedge portion 24. That is, the peripheral side plate portion 21 is formed with a groove opening 23a which is deeply dug down from the upper end surface so as to divide the peripheral side plate portion 4 into four equal parts, and the inclined groove 23 is formed in the counterclockwise direction from each groove opening 23a.

Further, a slight claw retaining step portion 24a is formed at the tip lower edge portion of the wedge portion 24 which is an upper portion of each inclined groove 23 of the peripheral side plate portion 21. Also, the peripheral side plate 2
1, the upper end surface of the peripheral edge portion 3 of the opening 4 of the instrument body 3
A stepped portion 25 having an L-shaped cross section for forming and supporting b is formed. On the outer edge of the rising upper end of the L-shaped step portion 25, hooking edge portions 26 having a small triangular cross section like burrs are projected at two locations in the circumferential direction. The attachment ring 20 can be attached to the instrument body 3 in advance by elastically hooking it on the upper edge of the peripheral portion 3b of the opening 4. Also, the upper end L of the peripheral side plate portion 21
A large number of small semicircular recesses 27 are formed in a groove shape on the bottom surface of the character-shaped step portion 25 in the circumferential direction, and are formed in the bottom of the peripheral edge portion 3b of the opening 4 of the instrument body 3. By engaging a small protrusion (not shown) formed on the edge, the mounting ring 20 can be rotated with respect to the instrument main body 3 with a proper degree of moderation rather than completely free rotation.

As shown in FIG. 6 (a), while the rosette 1 with the hook 2 is fixed to the ceiling surface A through the box B in advance, the circumference of the mounting ring 20 is fitted to the opening 4 of the instrument body 3. The side plate portion 21 is pushed in from the lower side to be fitted, and the peripheral edge portion 3b of the opening 4 of the instrument body 3 is mounted and supported by the upper end L-shaped step portion 25 of the peripheral side plate portion 21, and at the same time, FIG.
The hooking edge portion 26 is elastically hooked to the upper edge of the peripheral edge portion 3b of the opening portion 4 of the instrument body 3 as shown in, and the attachment ring 20 is attached to the instrument body 3 in the opening portion 4. Also, turn the mounting ring 20 by grasping the operation flange portion 22 with a hand,
Four slots 23 of the peripheral side plate portion 21 of the mounting ring 20
a is a notch concave portion 4a at four places of the opening 4 of the instrument body 3
Match and face. In this state, the mounting ring 20 has a small protrusion at the lower edge of the peripheral edge portion 3b of the opening 4 of the instrument body 3 that engages with the recessed portion 27, so that the mounting ring 20 has an appropriate moderation in the rotation direction.
The mounting ring 20 does not rotate undesirably with respect to the instrument body 3 to cause positional displacement.

Then, the outer frame 30 shown in FIG. 3 is put on the instrument body 3, and the instrument body 3 is lifted in this state,
The two notched recesses 4a of the opening 4 are aligned with the left and right hooking claws 2 of the rosette 1, and the device body 3 is pushed up so as to fit into the rosette 1 as shown in FIG. 6B. As a result, the rosette 1 penetrates into the mounting ring 20 as the opening 4 of the instrument body 3 penetrates, and at the same time, the left and right hooking claws 2 penetrate the two notch recesses 4a of the opening 4 of the instrument body 3, The horizontal portion 2a of the hooking claw 2 penetrates into the two groove openings 23a of the peripheral side plate portion 21 of the mounting ring 20.

In this state, turn the instrument body 3 slightly to the right,
The notched concave portion 4a is displaced from the hook claw 2 to temporarily fix the instrument body 3 in a state where it does not fall out of the rosette 1. next,
Only the mounting ring 10 is rotated to the right. Then, the horizontal portion 2a of the hooking claw 2 slides into the inside of the inclined groove 23 from the groove opening 23a of the peripheral side plate portion 21 while sliding, and the mounting ring 20 is rotated rightward until it is stopped and tightened. As a result, as shown in FIG. 6C, the upper wedge portion 24 of the inclined groove 23 of the mounting ring 20 rides on the horizontal portion 2a of the hook 2 and pushes up and fixes the instrument body 3 to the ceiling surface A.

That is, in the mounting ring 20, only the upper wedge portion 24 of the inclined groove 23 of the peripheral side plate portion 21 rides on the horizontal portion 2a of the hook 2 of the rosette 1, and the upper end 2b of the hook 2 is raised. There is nothing in. For this reason, as shown in FIG. 6B, even if the gap between the upper end of the tip end rising portion 2b of the hook 2 and the ceiling surface A is small due to variations or the like, as long as the gap is equal to the plate thickness of the instrument body 3. Mounting ring 2
Zero rotation tightening is possible. Further, even if there is some variation in the gap between the hook 2 and the ceiling surface A, the fixture body 3 can be pressed against the ceiling surface A without tilting by pushing up the mounting ring 10, and the fixture body 3 can be enlarged. Since there is no need to rotate, there is no need to worry about damaging the ceiling surface A.

Further, in the case of this embodiment, the attachment ring 20 which is a fixture can be preliminarily attached to the opening 4 of the instrument body 3 so as not to drop off accidentally, and the instrument body 3 and the attachment ring 20 are mutually connected. It is possible to maintain the state in which the notch recess 4a of the opening 4 of the instrument body 3 and the groove 23a of the peripheral side plate portion 21 of the mounting ring 20 are matched and opposed to each other by stopping the rotation with an appropriate degree of moderation. The device body 3 and the attachment ring 20 can be fitted together and tightened and fixed to the rosette 1 with the hooking claw 2, and the workability thereof is greatly improved.

The left and right lamp socket units 33 shown in FIG. 3 are attached to the lower surface of the fixture main body 3 thus attached to the ceiling to attach a plurality of fluorescent lamps (not shown), and the pull switch unit 34 is attached. Then, the hook ceiling 35 is inserted into the rosette 1 for electrical connection, the inverter unit 36 is further attached, and finally the shade 37 is attached to complete the ceiling lighting fixture.

[0027]

Since the ceiling luminaire of the present invention is constructed as described above, even if there is some variation in the gap between the hooking claw of the rosette and the ceiling surface, the luminaire body tilts and damages the ceiling surface. There is no need to worry, and if the gap is the thickness of the instrument body, the fixing member can be attached by tightening, and the effect that the ceiling installation can be performed very easily and securely is obtained.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a basic structure showing an embodiment of a ceiling lighting fixture of the present invention.

2 (a) and 2 (b) are cross-sectional views of relevant parts showing, in order, the assembled and fixed state of the above basic structure.

FIG. 3 is an exploded perspective view showing a specific example of the ceiling lighting fixture of the present invention.

FIG. 4 is a plan view of a mounting ring alone as a fixture used in the above embodiment.

5A is a sectional view taken along line XX of FIG. 4, and FIG.
Is a cross-sectional view taken along the line YY of FIG. 4, and (c) is a line ZZ of FIG.
Sectional drawing which follows the line.

6 (a), (b) and (c) are sectional views of a main part showing the assembled and fixed state of the above embodiment in order.

FIG. 7 is an exploded perspective view showing a ceiling mounting structure portion of a conventional ceiling lighting fixture.

8A and 8B are partial cross-sectional views sequentially showing the assembled and fixed state of the conventional example.

[Explanation of symbols]

A ... Ceiling surface, 1 ... Rosette, 2 ... Hooking claw, 2a ... Horizontal part, 3 ... Instrument body, 4 ... Opening part, 10, 20 ... Fixing tool (mounting ring), 10a, 21 ... Peripheral side plate part, 11, 23
… Sloping grooves.

Claims (1)

[Claims] 1. A rosette fixed to a ceiling surface and having hooking claws protruding from the outer periphery, an instrument main body having an opening through which the rosette and the hooking claws pass, and a peripheral side plate portion facing from the upper end surface in the circumferential direction. Ceiling lighting fixture having an inclined groove that obliquely descends, and a fixing member that pushes up the fixture body to the ceiling surface by rotating so that the horizontal portion of the hooking claw of the rosette enters the inclined groove. ..