JP2993368B2 - lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a luminaire in which a second reflector can be easily attached to and detached from a first reflector.

[0002]

2. Description of the Related Art As shown in FIG. 7, a description will be given of an example of a ceiling-mounted type multi-lamp lighting fixture in which two straight tube fluorescent lamps are arranged in parallel.

[0003] 1 is a support bar having a substantially I-shaped cross section.
Thus, a plurality is provided in parallel on the ceiling of the building structure in advance. Reference numeral 3 denotes an appliance body having a substantially U-shaped cross section. A lighting device such as a ballast 6 is attached to a lower surface of the appliance body, and a socket fixture 4 to which a lamp socket 5 is attached is provided at both ends of the lower surface. It is attached with screws (not shown). Further, support members 2 each having a substantially U-shaped cross section are attached to both ends of the upper surface with screws (not shown).

[0004] The socket cover 9 is placed inside the socket fixture 4 of the instrument body 3 so as to face each other.
The reflection plate 7 is placed on the socket cover 9, and the socket cover 9 and the first reflection plate 7 are fixed to the instrument body 3 together with the screws 15.

The first reflecting plate 7 has a concave reflecting surface forming a reflecting surface 7d on the inside, and is formed to have a substantially arc-shaped cross section and substantially the same length as the instrument body 3. At the lower end in the longitudinal direction of the first reflection plate 7, a mounting portion 7 mounted on the support bar 1 with a substantially U-shaped cross section.
a and a flat portion 7b having a substantially flat cross section is formed at the upper end in the longitudinal direction of the first reflection plate 7.
The flat portion 7b is provided with a plurality of tongue receiving portions 8 for supporting the second reflection plate 10. As shown in FIG. 8A, the tongue piece receiving portion 8 is formed so as to bulge integrally on the reflection surface 7d side, and has a slit-like opening 8a on the side facing the second reflection plate 10. .

A second reflector 10 has a V-shaped reflector 11 having a substantially V-shaped cross section at the center, a step 12a formed by bending both ends into an L-shape outward, and a horizontal portion extending from the step 12a. And a horizontal reflector 12 protruding from Second reflector 10
Has an outer surface serving as a reflection surface 10a and is formed to be elastic in the width direction.

An engaging tongue 13 is provided in the longitudinal direction of the horizontal reflector 12 so as to correspond to and engage with the tongue receiving portion 8. As shown in FIG. 8B, on both sides of the engagement tongue piece 13, a pair of slit-shaped notches 13a having an edge 12b opened.
Is formed. The notch 13a is provided for inserting and engaging the engaging tongue piece 13 with the tongue piece receiving portion 8.

After the pair of first reflectors 7 are attached to the socket fixture 4 by screws, the second reflector 10 is pinched with a finger and narrowed in the width direction to be elastically deformed inward, and the engaging tongue piece 13 is attached to the tongue. It is aligned with the single receiving portion 8. Next, when the force of the finger of the hand is released, the second reflection plate 10 is opened outward by the restoring force due to the elasticity of the second reflection plate 10, and the engagement tongue 13 is inserted into the tongue reception portion 8 as shown in FIG. Engaged. The second reflector 10 is located between the pair of first reflectors 7 and is mounted so as to protrude.

The support body 2, the socket cover 9, the first reflection plate 7, and the instrument main body 3 to which the second reflection plate 10 is attached are supported by the support bar-1.
It is inserted into an opening (not shown) formed in the ceiling surface between and is carried into the back of the ceiling, and the support 2 attached to the instrument body 3
Is placed on the support bar-1, and the instrument body 3 is fixed between the support bars-1.

[0010]

As described above, since the step 12a of the second reflector 10 abuts and engages with the edge 8b of the first reflector 7, as shown in FIG. Since the edge 12b of the second reflection plate 10 is exposed on the reflection surface side of the reflection plate 7, the appearance is deteriorated.

Further, in order to detachably attach the second reflector 10 to the first reflector 7, it is necessary to pinch the second reflector 10 with a finger and narrow it in the width direction. Has a substantially V-shaped cross section, and the work is easy to slip because the work is performed by grasping the inclined portion.

The present invention has been made in view of the above points, and the second reflector can be easily attached to and detached from the first reflector.
It is an object of the present invention to provide a multi-lamp lighting device having a good appearance without exposing the edge of the second reflector.

[0013]

In order to achieve the above object, a lighting fixture according to the present invention is a lighting fixture comprising a fixture main body and a reflector attached to a lower surface of the fixture main body. Comprises a first reflector having an open lower surface, and a second reflector having a substantially V-shaped cross section and detachably attached inside the first reflector.
A pair of substantially parallel rising portions are formed at the center of the reflecting plate, and a supporting portion including a support hole or a supporting projection is provided at each of the rising portions. The second reflecting plate has the rising portion at the upper portion thereof. Forming a pair of substantially parallel mounting portions overlapping the inner surface of each of these, and each of these mounting portions is provided with an engaging portion comprising an engaging convex portion or an engaging hole engaging and disengaging from the support portion,
In a state where the second reflector is attached to the first reflector, a lower portion of the attachment portion projects downward from a lower end of the rising portion.

[0014]

In the above construction, in order to attach the second reflector to the first reflector, a pair of attachment portions formed substantially in parallel with each other on the upper portion of the second reflector is gripped by one hand and narrowed in the width direction. The support portion of the second reflector having an engagement protrusion or an engagement hole is inserted between a pair of rising portions formed in a direction opposite to the reflection surface of the first reflection plate, and the engagement formed on the rising portion of the first reflection plate. The second reflector is attached to the first reflector by engaging the holes or the engagement projections. Therefore, the appearance is improved without exposing the edge of the second reflector. Also, a pair of mounting portions (portion C in FIG. 2) formed substantially parallel to the second reflector are pinched by a finger and narrowed in the width direction, so that the finger can be easily attached and detached without slipping.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 4 is a cross-sectional view showing an example of a multi-lamp lighting fixture. A support bar 1 having a substantially I-shaped cross section is provided on a ceiling of a building structure to which the lighting fixture can be attached. The opening 29 is provided in parallel on both sides on the back side. First
The reflecting end plate 20 to which the lamp socket 26 is attached is fixed to the opening at both ends of the reflecting plate 5, and the supporting device 2 is attached to the upper surface by screws (not shown), and the lighting device 27 is described later by screws 28. Convex part 8 of first reflector 5
Mounted on The second reflector 15 is detachably attached to the first reflector 5 by a method described later. The lighting fixture assembled as shown in FIG. 4 is carried into the ceiling from an opening provided in the ceiling, and the support device 2 attached to the upper surface of the first reflector 5 is placed between the support bars-1. And fix it.

FIG. 1 is an exploded perspective view showing a part of the first reflector and the second reflector. In FIG. 1, reference numeral 5 denotes a reflection recess 5b having a reflection surface 5a on the inner side of the instrument body. The first reflector is made of a metal material, and a side reflector 6 provided with a curved surface curved in an arc shape at both ends of the cross section, A mounting portion 10 having a substantially U-shaped cross section and an upper opening continuously provided at both lower ends and a reflector 6
Above the top plate portion 7 extending inward in a substantially horizontal shape, and the top plate portion 7 is bent or projected upward at the center of the cross section of the first reflection plate 5 continuously with the top plate portion 7, and has a cross section having an opening below. It is formed from a U-shaped convex portion 8. The projection 8 includes a rising portion 8a formed by bending or projecting upward and a horizontal upper surface portion 8b formed by connecting the rising portions. Further, a plurality of support portions 9 each having a rectangular support hole are provided on the pair of rising portions 8a so as to face each other. Note that the support holes formed in the support portion 9 may be support protrusions that protrude into the protrusion 8. In this case, the engaging portion 17a of the second reflector that engages with the support projection may be an engagement hole that engages with the support projection.

Reference numeral 15 denotes a second reflector, which is made of a metal material. The second reflector 15 has a V-shaped reflector 16 having a substantially V-shaped cross section formed by two continuous inclined surfaces. A pair of mounting portions 17 which are bent upward from both side edges of the upper end of the reflection plate 16 and are formed substantially in parallel,
The width between the gaps 7 is provided to such an extent that it can be grasped by one hand, and the pair of mounting portions 17 are provided with dimensions that overlap the inner surface of the rising portion 8a. , And a reflection convex portion 15b having an outer surface as a reflection surface 15a.

Further, on the upper end side of the mounting portion 17, there is provided an engaging portion 17a formed of an engaging projection which can be disengaged from the supporting portion 9. The engaging projections protrude outward in a substantially arc shape, and have a substantially semicircular projection 17b having an edge 17c with an open lower surface. The edge 17c engages with the lower edge 9a of the engagement hole 9. It becomes the locking surface 18. The lengths of the first reflector 5 and the second reflector 15 in the longitudinal direction are substantially the same.

Reference numeral 20 denotes a reflection end plate, which is attached so as to cover open portions at both ends of the first reflection plate 5 and the second reflection plate 15. The lower surfaces of the first reflection plate 5 and the reflection end plate 20 are open, and the inner surfaces are reflection surfaces. As shown in FIG. 3, the reflection end plate 20 is formed with a projection 21 projecting inward to mount the lamp socket 26 thereon. The projecting portion 21 has an inclined surface 21a which is inclined inward, and a flat portion 21b is provided on the upper surface. On the mounting surface side of the lamp socket 26, a not-shown concave portion similar to the projecting portion 21 is formed, and an engaging convex portion is provided in this concave portion. An engagement hole 21c is provided in the flat portion 21b at a position corresponding to the engagement protrusion. The protrusions 21 are provided by the number of lamps to be mounted.

Reference numeral 2 denotes a support device having a substantially U-shape. The support device 2 comprises a support 3 having a substantially U-shaped cross section, a support 4 fixed to both lower ends of the support 3, and a holding member. And a leaf spring 11. The support device 2 is supported by a support bar 1 having a substantially I-shaped cross section adjacent to the ceiling portion. The support bar-1 comprises an upper overhang portion 1a on which the support device 2 is mounted and a horizontal lower overhang portion 1c mounted on the ceiling panel 12. The support 4 includes a first plate portion 4a substantially perpendicular to the up-down direction and the first plate portion 4a.
a mounting piece 4b, which is located at the center of a and opened downward and bent outward in a substantially L-shaped cross section,
b is placed on the upper overhang portion 1a. The holding plate spring 11 is provided with a holding portion 11a formed by being bent outward in a substantially V-shaped cross section with an upper opening at the lower edge.

Next, a procedure for assembling the lighting fixture of the above embodiment into the ceiling will be described.

A lighting device 27 such as a ballast is mounted on the first reflector 5 with a screw 28, and the supporting device 2 is mounted on the upper surface of the first reflector 5 so as to face the upper end of the second reflector 15. Mounting part 17 (part C in FIG. 2) provided substantially in parallel
Is pinched with a finger to narrow the rising portion 8a of the convex portion 8 of the first reflecting plate 5.
A pair of mounting portions 17 provided on the second reflection plate 15 are inserted between the two, and when the force of the finger is loosened, the engaging portions 17 formed on the mounting portion 17 are formed.
The outer surface of a corresponds to the inner surface of the rising portion 8a formed on the projection 8 of the first reflecting plate 5. In this state, the second reflector 15
Is pushed upward, the arc 17b of the engaging projection 17a enters the engaging hole 9. Pushing it up further
The engaging surface 18 formed at the lower end of the engaging projection 17a and the lower edge 9a of the engaging hole 9 abut and engage. The lighting device 27 such as a ballast attached to the first reflection plate 5 includes the second reflection plate 15.
And is covered and hidden by the V-shaped reflection plate 16.

Next, after the lamp socket 26 is attached to the projection 21 of the reflection end plate 20, the reflection end plate 20 is attached to the first end.
The main reflector 5 and the second reflector 15 are mounted so as to cover the openings at both ends.

The lighting fixture assembled as shown in FIG. 4 is carried into the ceiling from the opening 29 provided in the ceiling, and the mounting piece 4b of the support device 2 attached to the upper surface of the first reflector 5 is mounted.
Is placed on the upper overhang portion 1a, the pressing leaf spring 11 spreads inward and rides over the middle overhang portion 1b, returns to the original direction by the restoring force due to elasticity, and is fixed while pressing the support bar-1. A straight tube fluorescent lamp 29 is mounted between the lamp tube 26 and the lamp socket 26.

When the second reflector 15 is removed in order to replace the lighting device 27 such as a ballast attached to the first reflector 5, the second reflector 15 is substantially parallel to the first reflector 5. When the mounting portion 17 provided on the base is pinched by a finger or the like and elastically deformed inward, the engaging projection 17a comes off the engaging hole 9. The second reflector 15 can be removed by grasping and moving it downward.

As described above, in order to attach the second reflector 15 to the first reflector 5, the square shape provided at the rising portion 8 a of the convex portion 8 projecting above the center of the first reflector 5 is required. The engagement hole 9 is engaged with the engagement projection 17a provided on the support plate 18 of the second reflection plate 15, so that this engagement member is provided in a portion (projection 8) that cannot be seen from the outside and the support plate Since the edge 18a of 18 is also inside the projection 8, it cannot be seen from the outside and the appearance does not deteriorate. The attachment and detachment of the second reflection plate 15 is performed by pinching the substantially parallel attachment portion 17 provided opposite to the upper portion of the second reflection plate 15 with a finger, so that the operation is not slippery and difficult.

[0028]

As described above in detail, according to the present invention, when the second reflector is attached to and detached from the first reflector, a pair of substantially parallel rising portions is provided at the center of the first reflector. Since a support portion comprising a support hole or a support protrusion is provided on each of the rising portions, and a pair of substantially parallel mounting portions overlapping the inner surface of the rising portion are provided on the upper portion of the second reflecting plate for mounting and dismounting. The appearance is good without exposing both side edges of the second reflector.

In the state where the second reflector is attached to the first reflector, the lower portions of a pair of substantially parallel attachment portions for narrowing in the width direction with one hand are projected downward from the lower end of the rising portion. Can be easily attached and detached without slipping.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a part of a first reflector and a second reflector according to an embodiment of the present invention.

FIG. 2 is a sectional view showing an engagement state between a support portion of a first reflector and a mounting portion of a second reflector in the embodiment.

FIG. 3 is a view showing the reflection end plate in the same embodiment as viewed from a lamp socket mounting direction.

FIG. 4 is an exemplary sectional view showing a state in which the lighting apparatus is mounted on a ceiling according to the embodiment;

FIG. 5 is a perspective view showing the entire lighting fixture in the embodiment.

FIG. 6 is a sectional view of a hooked state showing a method of attaching the second reflector to the first reflector in the embodiment.

FIG. 7 is an exploded perspective view showing the entire lighting device according to the related art.

FIG. 8A is a perspective view showing a part of a tongue piece receiving portion of a first reflection plate in the prior art. (B) A perspective view showing a part of the engaging tongue of the second reflector in the prior art. (C) Sectional drawing which shows the assembly state of the 1st reflector and the 2nd reflector in the same prior art.

[Explanation of symbols]

Reference numeral 5: first reflector, 7: top plate portion, 8: convex portion, 8a: rising portion, 8b: upper surface portion, 9: support portion, 15: second reflector plate, 1
7 mounting part, 17a engaging part.

Claims (1)

(57) [Claims] 1. A lighting device comprising a fixture body and a reflector attached to a lower surface of the fixture body, wherein the reflector has a first reflector having an open lower surface and a substantially V-shaped cross section. And a second reflector detachably attached to the inside of the first reflector. A pair of substantially parallel rising portions are formed at the center of the first reflector and supported by these rising portions. A support portion comprising a hole or a support protrusion is provided, respectively. A pair of substantially parallel mounting portions overlapping the inner surface of the rising portion are formed on the second reflector, and the mounting portions are provided on the support portion. An engaging portion including an engaging convex portion or an engaging hole to be engaged and disengaged is provided, respectively. In a state where the second reflector is attached to the first reflector, a lower portion of the attaching portion is moved from a lower end of the rising portion. Lighting fixture characterized by projecting downward .