JP3306574B2 - Recessed lighting fixture - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recessed lighting fixture in which a lighting fixture main body is embedded and mounted in a mounting opening hole provided in a ceiling, and more particularly, to a one-touch operation simply by inserting the lighting fixture main body into the mounting opening hole. The present invention relates to a low-installation embedded lighting fixture which can be installed with a light source.

[0002]

2. Description of the Related Art FIG.
FIG. 1 is a partial perspective view of a conventional recessed lighting device disclosed in Japanese Patent Application Laid-Open Publication No. H11-209,837. In the figure, reference numeral 10 denotes a ceiling plate to which an embedded lighting fixture is attached, 11 denotes an upper surface thereof, and 12 denotes a lower surface thereof. Reference numeral 13 denotes a mounting opening hole provided in the ceiling plate 10. 31 is the instrument body, 32 is the instrument body 31
A guide slit is provided on the side wall of the device and guides a mounting bracket 33 described later in the vertical direction. Reference numeral 33 denotes a corrugated portion formed over the guide slit 32 and formed at predetermined intervals in the vertical direction so as to be uneven. It is an outward flange provided on the outer periphery of the lower end. Reference numeral 35 denotes a mounting bracket for attaching the apparatus main body 31 to the ceiling plate 10, and includes an operation knob 35a, a locking piece 35b, and a ceiling surface contact portion 35c.

[0003] Next, a description will be given of a method of mounting the conventional recessed lighting fixture having the above structure. First, the operation knob 35a is placed inside the appliance main body 31, and the ceiling surface contact portion 35
The mounting bracket 35 is inserted into the guide slit 32 in a state where c is positioned outside the appliance main body 31, respectively.
Is set on the instrument body 31. At this time, a sufficient distance is provided between the ceiling upper surface contact portion 35c and the flange portion 34 in accordance with the thickness of the ceiling plate 10 on which the appliance body 31 is to be mounted.

[0004] Next, the instrument body 31 is inserted into the mounting opening hole 13. When the mounting bracket 35 comes into contact with the peripheral wall of the mounting opening 13, the mounting bracket 35 is deformed toward the appliance body 31 according to the opening by spring elasticity. In this state, the fixture main body 31 is pushed up, and when the mounting bracket 35 exceeds the ceiling upper surface 11, the mounting bracket 35 is restored to the original state.

Next, the flange portion 34 of the appliance body 31 is brought into close contact with the lower surface 12 of the ceiling, and the operation knob 35a is operated from the inside of the appliance body 31 while maintaining this state, so that the ceiling upper surface contact portion 35c contacts the ceiling upper surface 11. Mounting bracket 3 until contact
Press 5 down. Thereby, the flange portion 34 and the ceiling upper surface contact portion 35c sandwich the ceiling plate 10, and the fixture body 31 is fixed to the ceiling surface. At this time, the fitting 35 is fixed at a predetermined position by the engagement between the locking piece 35b and the wavy portion 33.

[0006]

In the conventional recessed lighting fixture constructed as described above, it is necessary to put a hand inside the fixture main body 31 to operate a small part called the operation knob 35a. There was a problem that it was difficult to mount due to poor performance. In addition, parts to be mounted inside the apparatus main body 31, such as a light source and a light reflecting mirror, are obstructive when mounting the lighting apparatus, so they must be removed in advance and re-mounted after the mounting of the lighting apparatus is completed. However, there is also a problem that it takes time and workability is poor.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide an embedded lighting device having good operability and workability at the time of mounting.

[0008]

According to the present invention, there is provided a recessed type luminaire having a ceiling plate formed by an outward flange provided on an outer peripheral edge of a lower end of the luminaire main body and a mounting device installed on the luminaire main body. In a recessed lighting device for mounting the lighting fixture body in the mounting opening hole by sandwiching a peripheral portion of a mounting opening hole provided in the lighting device body, the mounting device is provided on an outer peripheral edge of a lower end of the lighting fixture body. Arm and
A press fitting that is detachably attached to the arm and that is vertically movably attached to the arm; and a biasing means that urges a lower end of the press fitting in a direction away from the arm and in a direction to move the press fitting below the arm. And a holding means for holding the holding member close to the arm above the arm, and a releasing means for releasing the holding of the holding means.

Further, the urging means and the holding means are constituted by V-shaped springs whose intersections are attached near the lower end of the arm.

Further, the release means is constituted by a pull-down fitting having an engaging portion on the upper end side for engaging with the presser fitting and a projecting portion projecting outward on the lower end side.

[0011] Further, a projection protruding toward the arm is provided at a lower end portion of the presser fitting, and a guide hole through which the projection can be inserted is provided in the arm.

Further, the holding member is formed of a substantially rectangular plate-like body, and the upper part thereof is bent outward to form a substantially rectangular shape.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. FIG. 1 is a perspective view of an embedded lighting device according to one embodiment of the present invention. In the drawing, reference numeral 1 denotes a lighting fixture main body, and 2 denotes an outward flange provided on an outer peripheral edge of a lower end of the lighting fixture main body. Reference numeral 3 denotes a mounting device for mounting the lighting fixture main body 1 on the ceiling, and one mounting device is provided at each symmetrical position with respect to the lighting fixture main body 1. The mounting device 3 includes an arm 4 having one end fixed to the flange portion 2 of the lighting fixture main body 1, a V-shaped spring 5 having an intersection at the lower end of the arm 4,
A holding member 6 engaged with the arm 4 and the V-shaped spring 5 so as to be vertically movable along the arm 4 and a pull-down member 7 engaging with the holding member 6 to pull the holding member 6 downward. It is configured.

The arm 4 is formed in a rectangular shape.
a is bent inward (toward the lighting fixture main body 1 when the arm 4 is attached to the lighting fixture main body 1) and formed in a U-shaped cross section. Slits 4b are provided in the edges 4a on both sides of the arm 4. The arm 4 stands upright at a right angle to the flange 2.

Next, the shape of the holding member 6 will be described. The holding member 6 includes a rectangular holding member 6a, a guide member 6b formed on both upper sides of the holding member 6a, an engagement member 6c provided immediately below the two guide members 6b and engaging with the V-shaped spring 5, and a holding member. There is a pressing piece 6d formed on both lower sides of 6a. The guide piece 6b engages with both edges 4a provided on the arm 4, and guides the holding member 6 so that the arm 4 can move in the vertical direction.

Next, the shape of the pull-down fitting 7 will be described. The pull-down fitting 7 is formed by bending a wire into a U-shape, and includes an arm portion 7a and a connecting portion 7b that connects the two arm portions 7a. And arm 7
The distal end of “a” is bent inward, and the distal end is bent toward the lighting fixture body 1. The base ends of the arms 7a are bent in a direction away from the lighting fixture body 1 and protrude outward.

FIG. 2 is a perspective view showing a state where the V-shaped spring 5 is assembled to the arm 4. The shape of the V-shaped spring 5 will be described based on FIG. The V-shaped spring 5 is formed by bending a single spring wire, and has two legs 5 a, a coil-shaped portion 5 b formed in a coil shape at an intersection of the two legs 5 a, and both legs 5.
It is composed of a ring portion 5c formed at the front end of a. Then, the position slightly closer to the tip than the center of the two legs 5a is bent outward (in the direction away from the lighting fixture body 1 when the arm 4 is attached to the lighting fixture body 1) and in a direction in which the two legs 5a approach. A bent portion 5e is formed.

FIG. 3 is a side view showing a state where a V-shaped spring 5 is assembled to the arm 4. As can be seen from this figure, the leg 5b of the V-shaped spring 5 and the arm 4 are mounted at a predetermined angle α.

Next, the assembled state of the arm 4, the V-shaped spring 5, the holding member 6, and the pull-down member 7 configured as described above will be described with reference to FIG. 1 again. As shown in FIG. 1, both legs 5 a of the V-shaped spring 5 are pressed and narrowed, and the bent end portions 5 e thereof are gripped from outside by the guide pieces 6 b of the holding member 6. At this time, the V-shaped spring 5 has a shape in which the bent end portions 5e on both sides thereof are substantially parallel and extend outward. Therefore, the holding piece 6b is held on the upper part of the arm 4 in a state of being in close contact with the arm 4 side.
The tip of the pull-down metal fitting 7 is inserted into the slit 4 b of the arm 4 and the guide piece 6 b of the holding metal fitting 6.
It is attached to the arm 4 while engaging with the upper part.
At this time, although the V-shaped spring 5 is about to expand due to its elasticity, the downward bent portion 5e is substantially parallel, so that no downward force is exerted on the holding member 6. The state shown in FIG. 1 is a setting state before the lighting fixture main body 1 is mounted on the ceiling.

Next, a method of mounting the lighting fixture main body 1 set as shown in FIG. 1 on the ceiling and the operation of the mounting device 3 at that time will be described. The lighting fixture body 1 in the setting state is inserted into the mounting opening hole 13 provided in the ceiling.
Then, the connecting portion 7b of the drop-down metal fitting 7 comes into contact with the lower surface 12 of the ceiling, and when the lighting fixture body 1 is further pushed up, the connecting portion 7b
b is pushed down by the ceiling lower surface 12. When the connecting portion 7b is pushed down, the tip of the pull-down fitting 7 engaging with the upper part of the guide piece 6b of the holding fixture 6 pulls down the holding fixture 6.

When the holding member 6 is pulled down, the engaging piece 6c of the holding member 6 passes through the bent end portion 5e of the V-shaped spring 5 and V
When reaching the shape portion, the force of the V-shaped spring 5 trying to spread exerts a downward force on the engagement piece 6c of the holding member 6. In this V-shaped portion, since the leg 5a of the V-shaped spring 5 forms a predetermined angle α with the arm 4, the engaging pieces 6c of the presser fitting 6 engaged with the leg 5a are both ends thereof. The upper side of the portion 6g is pushed inward (toward the lighting fixture main body 1) by the V-shaped spring 5. As a result, the lower end of the holding piece 6 b of the holding metal 6 rises from the arm 4. That is, when the engagement piece 6c of the holding member 6 reaches the V-shaped portion of the V-shaped spring 5, the V-shaped spring 5 urges the lower end of the holding member 6b in a direction away from the arm 4 and simultaneously holds the holding member 6 in place. Will also be urged in the direction to move.

The retainer 6 is lowered along the arm 4 with the lower end of the retainer 6b raised from the arm 4 by the urging force of the V-shaped spring 5, and the lower end of the retainer 6b is placed on the upper surface 11 of the ceiling. Upon contact, the ceiling plate 10 is sandwiched between the lower end of the holding piece 6b and the flange 2 of the lighting fixture main body 1 as shown in FIG. 4, and the lighting fixture main body 1 is attached to the ceiling.

As described above, according to this embodiment, the luminaire main body 1 can be mounted on the ceiling surface only by inserting the luminaire main body 1 into the mounting opening hole 13, and the embedded luminaire having good operability and workability in mounting. Can be obtained.

In this embodiment, the V-shaped spring 5 is used as a means for urging the lower end of the holding piece 6b away from the arm 4 and also for urging the holding metal 6 downward. Although an example is shown, the present invention is not limited to this, and may be other means. Just V
When the mold spring 5 is used, the structure is simple, and the biasing force can be easily adjusted by the degree of opening of the legs 5a and the degree of curvature of the spring material, which is convenient.

Further, in this embodiment, the holding portion 6 is released from the bent portion 5e of the V-shaped spring 5 by pushing down the connecting portion 7b of the pull-down fitting 7 by the lower surface 12 of the ceiling. With this configuration, the lighting fixture main body 1 can be mounted on the ceiling surface only by inserting the lighting fixture main body 1 into the mounting opening hole 13, so that an embedded lighting fixture having good mounting operability and workability can be obtained.

Next, a method of removing the embedded lighting fixture attached to the ceiling surface as described above and the operation of the attachment device 3 at that time will be described. To remove the embedded lighting fixture, the lighting fixture body 1 is pulled down. At this time, the holding member 6 moves upward on the arm 4 with the lower end of the holding piece 6b abutting on the ceiling upper surface 11. Then, when the engaging piece 6c of the holding member 6 passes through the bent portion of both legs 5a of the V-shaped spring 5 and reaches the tip bent portion 5e, the C of the holding member 6
The mold portion moves outward along the bent front end portion 5e, and the holding piece 6b comes into close contact with the arm 4 as shown in FIG. In such a state, the embedded lighting fixture can be pulled downward from the mounting opening hole 13.

As described above, according to the present embodiment, it is possible to remove the embedded lighting fixture with good operability and workability.

Embodiment 2 FIG. FIG. 5 is a perspective view of the present embodiment. In the present embodiment, a flange 6e is provided substantially at the center of the lower portion of the holding piece 6b, a rectangular guide hole 4c is provided at a position near the lower end in the center of the arm 4, and a lower peripheral edge of the guide hole 4c is further provided. Is provided with a guide piece 4d formed by cutting and raising the inside.

According to the present embodiment, when the holding piece 6b is pulled down by the drop-down fitting 7 and descends along the arm 4, the collar 6e abuts on the guide piece 4d and is guided outward, so that the holding member is held down. The lifting of the lower end of the piece 6b is performed smoothly. In the present embodiment, the example in which the guide piece 4d is provided has been described. However, even if only the guide hole 4c is provided without providing the guide piece 4d, substantially the same effect can be obtained.

Embodiment 3 FIG. 6 is a perspective view of another embodiment of the present invention. In the present embodiment, the upper portion of the holding piece 6a of the holding metal member 6 is bent outward. According to the present embodiment, when the holding piece 6a is pulled down by the pull-down metal fitting 7 and descends along the arm 4, the holding metal fitting 6 rotates about the bent portion as a rotation axis. This has the effect that the rising of the surface becomes smooth.

Embodiment 4 FIG. FIG. 7 is a perspective view of another embodiment of the present invention. In the present embodiment, a leaf spring 20 is used as a means for bringing the presser piece 6b closer to the arm 4 when the presser 6 is positioned above the arm 4. Hereinafter, the configuration of the present embodiment will be described with reference to FIG. In FIG. 7, the same portions as those shown in FIGS. 1 to 6 are denoted by the same reference numerals, and description thereof will be omitted. 8
1 is a V-shaped spring, which is different from that shown in the first to third embodiments in that it has no bent end portions 5e (see FIG. 2) at the distal end portions of both legs and the legs 8a are straight except for those shown in FIGS. Has the same configuration as that shown in FIG. Reference numeral 9 denotes a holding member, and a holding piece 9a and a bent portion 9b obtained by bending an upper portion of the holding piece 9a outward.
It has. At substantially the center of the bent portion 9b, a locking hole 9c for locking a projection 20a of a leaf spring 20, which will be described later, is provided. The holding member 9 has an engaging piece 9d and a pressing piece 9e, like the one shown in FIG.

Numeral 20 denotes a leaf spring mounted on the upper part of the arm 4, the lower end of which is fixed to the arm 4 and is bent inwardly in the shape of a letter. A projection 20 a is provided on the surface of the leaf spring 20.

Next, the operation of the present embodiment configured as described above will be described. When setting the presser fitting 9, the presser fitting 9 is moved to the upper part of the arm 4. At this time, the upper end of the bent portion 9b is pushed outward by the leaf spring 20. As a result, the holding metal 9 is bent
b and the pressing piece 9a,
a is close to the arm 4 as shown in FIG. When the presser fitting 9 is further pushed upward, the leaf spring 2 is pressed.
0 is provided on the bent portion 9b and the projection 20a is provided on the bent portion 9b.
, Whereby the presser fitting 9 is held on the upper part of the arm 4. Thus, the holding member 9 can hold the holding piece 9a on the upper portion of the arm 4 with the holding piece 9a approaching the arm 4 without bending the V-shaped spring. The other operation of the presser fitting 9 is the same as that shown in FIG.

Embodiment 5 FIG. 8 is a perspective view of another embodiment of the present invention. In the present embodiment, the pull-down fitting 7 formed of a wire in the first embodiment is formed of a plate. In the drawing, reference numeral 21 denotes a drop-down fitting formed of a rectangular plate material, and upper and lower ends thereof are bent outward at substantially right angles to form an upper bent portion 21a and a lower bent portion 21b. Upper bent part 21
a is engaged with the upper end of the holding piece 9a.

When the lighting device main body 1 is mounted on the ceiling, the lower bent portion 21b abuts on the lower surface of the ceiling and is pushed down, so that the upper bent portion 21a pulls down the holding piece 9a. As a result, the holding member 6 is pulled down in the same manner as in the first embodiment, and the holding member 6 is lowered along the arm 4 by the force of the V-shaped spring 5 to expand, so that the holding piece 6 b
The ceiling plate 10 is sandwiched between the lower end of the lighting device 1 and the flange 2 of the lighting fixture body 1. In the present embodiment, since the pull-down fitting 21 is formed of a plate material, the pull-down fitting 21 is rugged, and the reliability of the operation can be secured.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment of the present invention.

FIG. 2 is a perspective view of a component of the present embodiment.

FIG. 3 is a side view of the component of the embodiment.

FIG. 4 is an explanatory diagram illustrating the operation of the present embodiment.

FIG. 5 is a perspective view of another embodiment (Embodiment 2) of the present invention.

FIG. 6 is a perspective view of another embodiment (Embodiment 3) of the present invention.

FIG. 7 is a perspective view of another embodiment (Embodiment 4) of the present invention.

FIG. 8 is a perspective view of another embodiment (Embodiment 5) of the present invention.

FIG. 9 is a perspective view of a conventional recessed lighting device.

[Explanation of symbols]

1 lighting equipment main body, 2 outward flange, 3 mounting device, 4 arm, 4c guide hole, 4d guide piece, 5
V-shaped spring, 5a both legs, 5e bent part, 6,9 presser fitting, 6a engaging part, 6b presser piece, 6e collar part,
7, 21 Pull-down fitting, 20 leaf spring.

Continued on the front page (72) Inventor Hiroshi Miyazaki 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Corporation (56) References JP-A-7-29411 (JP, A) JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) F21V 21/04

Claims (5)

(57) [Claims] 1. An outer flange portion provided on an outer peripheral edge of a lower end of a lighting fixture main body and a mounting device provided on the lighting fixture main body, by clamping a peripheral edge of a mounting opening hole provided in a ceiling plate. An embedded lighting device for mounting the lighting device main body in the mounting opening hole, wherein the mounting device includes an arm erected on an outer peripheral edge at a lower end of the lighting device main body; A holding member movably attached; an urging means for urging the holding member in a direction in which a lower end of the holding member is separated from the arm and in a direction in which the holding member is moved below the arm; A recessed lighting device comprising: holding means for holding a holding metal close to the arm; and releasing means for releasing the holding of the holding means. 2. An embedded lighting device according to claim 1, wherein said urging means and said holding means are constituted by V-shaped springs whose intersections are mounted near the lower end of said arm. 3. The pull-down fitting according to claim 1, wherein the releasing means is a pull-down fitting having an engaging portion on the upper end side for engaging with the presser fitting and a projecting portion projecting outward on the lower end side. 3. The embedded lighting device according to 1 or 2. 4. The arm according to claim 1, wherein a protrusion protruding toward the arm is provided at a lower end portion of the holding metal, and a guide hole is provided in the arm so that the protrusion can be inserted. An embedded lighting device according to any one of the above. 5. An embedding device according to claim 1, wherein said holding member is formed of a substantially rectangular plate, and an upper part thereof is bent outward to form a substantially rectangular shape. Built-in lighting equipment.