JPH076616A - Luminaire - Google Patents

Abstract

PURPOSE:To facilitate attachment of a reflecting plate without using another fitting member and parts control, retain the reflecting plate by fixed holding power, and improve mounting/demounting workability. CONSTITUTION:An apparatus main body 18 provided with a fitting member 37 and a positioning body 22 is fitted in the fitting opening 17 of a ceiling board 16 by an anchor bolt 11. A reflecting plate 28 is inserted in the fitting opening 17 and the knob part 42 of the operating body 38 of the fitting member 37 is inserted through the fitting hole 35 of the reflecting plate 28. The knob part 42 is rotated, and the longitudinal direction of the knob part 43 is made orthogonal to that of the fitting hole 35. A hook part 43 is rotated to be positioned on a second rotary position where the hook part 42 of the longitudinal direction is insertable along the longitudinal direction of the insertion hole 24 of the positioning body 22. By energizing a coil spring 39, the hook part 43 is inserted in the insertion hole 24 to be moved into the coil spring 39 and the operating body 38 moves upward. The reflecting plate 28 together with the knob part 42 is moved upward, and the edge part 32 of the reflecting plate 28 abuts on the edge of the fitting opening 17 to retain the reflecting plate 28 for fitting the plate 28 to the apparatus main body 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture that holds and fixes a reflector plate with a mounting member.

[0002]

2. Description of the Related Art As a conventional luminaire of this type, for example, a structure as shown in FIG. 6 is adopted.

The lighting fixture shown in FIG. 6 has a fixture main body 54 in which lamp sockets 53 for mounting straight tube type fluorescent lamps (not shown) are provided at both ends of the mounting opening 52 of the ceiling plate 51 in the longitudinal direction. Then, the U-shaped positioning body 55 provided in the width direction on the lower surface near both ends in the longitudinal direction of the instrument body 54 is locked to the edge of the mounting opening 52 of the ceiling plate 51 to position the instrument body 54. , The anchor bolt 56 protruding toward the mounting opening 52,
The instrument body 54 is attached using the nut 57. Then, a reflection plate 58 that expands downward is attached to the positioning body 55 by means of a decorative screw 59 or the like so as to include the fluorescent lamp to be attached to the instrument body 54.

[0004]

However, in the luminaire having the conventional structure shown in FIG. 6, since the reflector 58 is attached by the separate decorative screw 59, the attaching work and the component management are complicated. There is. Also, this cosmetic screw
When attaching the reflection plate 58 by screwing the 59, the screwing strength varies depending on the worker.If the screwing strength is weak, the reflection plate 58 does not adhere to the lower surface of the ceiling plate 51, and a gap is created to create a beautiful appearance. If it is damaged and the screwing strength is strong, the reflector 58
There is a problem that it is difficult to remove the decorative screw 59 when removing the.

The present invention has been made in view of the above-mentioned problems, and provides a lighting fixture which can easily mount a reflector without using a separate mounting member and holds the reflector with a constant holding force. The purpose is to

[0006]

A lighting fixture according to the present invention comprises a fixture main body having an insertion hole, a reflection plate having a mounting hole facing the insertion hole, and the reflection plate provided on the fixture main body. A mounting member mounted on the main body, wherein the mounting member is rotatable through the insertion hole and the mounting hole and is provided on one end side of the rotating shaft, and the rotating shaft is at a first predetermined position. An attachment portion that can be inserted into the attachment hole when rotated, an urging means that is provided on the other end side of the rotation shaft and urges the attachment portion in a pulling direction, and a substantially intermediate portion in the axial direction of the rotation shaft. And a hooking portion that can be inserted into the insertion hole when the rotation shaft is rotated to a second predetermined position different from the first predetermined position where the attachment portion is inserted into the attachment hole. It is a thing.

[0007]

In the lighting apparatus of the present invention, when the reflector is attached to the main body of the apparatus, the rotary shaft is rotated to the second predetermined position and the latching portion is urged without being inserted into the insertion hole of the main body of the apparatus. The device main body is positioned between the means and the hooking portion of the rotary shaft, the mounting portion of the reflection plate is inserted into the mounting portion of the rotary shaft, and the rotary shaft is rotated in this state to bring the rotary shaft to the first predetermined position. The hook is inserted into the insertion hole of the instrument body by rotating, and the attaching part is urged toward the instrument body by the urging means while the attaching part is locked to the reflecting plate. Position the instrument body and reflector in between and attach the reflector to the instrument body.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of the lighting equipment of the present invention will be described below with reference to the drawings.

In FIGS. 1, 2 and 5, reference numeral 11 denotes an anchor bolt as a long-axis member to be attached. The anchor bolt 11 has one end embedded in a ceiling slab (not shown) at predetermined intervals and faces downward. It is provided so as to droop. The lower end of each of the anchor bolts 11 has a male screw portion.
12 are formed. Further, a washer 13 is inserted into the male screw portion 12 and a nut 14 is screwed onto it.

The anchor bolt 11 is provided with a ceiling plate 16 supported by supporting legs (not shown) from a ceiling slab, and male screw portions are provided near both ends in the longitudinal direction of a mounting opening 17 formed in the ceiling plate 16. It is provided so that 12 is located.

On the other hand, 18 is an instrument body, and this instrument body 18
Is a hollow elongated rectangular tube and accommodates a lighting device (not shown). Further, through holes (not shown) through which the anchor bolts 11 are inserted are formed on the upper surface of the instrument body 18 near both ends in the longitudinal direction. Further, lamp sockets 20 are attached to the lower surfaces of both ends of the instrument body 18 in the longitudinal direction so that the socket portions 19 to which the caps of a straight tube type fluorescent lamp (not shown) are mounted face each other.

A positioning body 22 is attached to the lower surface of the instrument body 18 near both ends in the longitudinal direction. The positioning body 22 is in the shape of a rectangular flat plate, and has both ends in the longitudinal direction bent downward substantially vertically, and has a U-shaped cross section. In addition, an L-shaped claw portion 23 is formed by cutting and raising in opposite directions in the substantially center of the positioning body 22 on the side opposite to the direction in which both longitudinal ends are bent. Further, an elongated insertion hole 24 is formed along the width direction of the positioning body 22 between the claw portions 23 at the substantially center of the positioning body 22.

The positioning body 22 is integrally attached such that the claw portion 23 is locked to the instrument body 18 and the longitudinal direction is along the width direction of the instrument body 18. Further, abutting portions 25 that are bent substantially vertically outward are formed at both ends of the positioning body 22 in the longitudinal direction, and the abutting portions 25 contact the lower surface of the edge of the mounting opening 17 of the ceiling plate 16. And the instrument body 18 is positioned.

Reinforcing portions 26 are formed on both sides of the positioning body 22 in the longitudinal direction by bending so as to be substantially perpendicular to the direction in which both ends bend.

On the other hand, 28 is a reflector, and this reflector 28 has
Side plates 30 are formed on both sides of the rectangular top plate 29 in the longitudinal direction and are bent downward and expanded, and reflecting surfaces 31 are formed on the inner surface side. Further, on the reflector plate 28, the lower end edge of the side plate portion 30 is bent outward in an L-shape, and the contact portion 25 of the positioning body 22 is formed.
And an edge portion 32 that is in contact with the lower surface of the edge of the mounting opening 17 of the ceiling plate 16 is formed.

A bulging portion 34 bulging upward in a truncated cone shape is formed on the reflecting plate 28 at a position corresponding to the positioning body 22 in the vicinity of both ends in the longitudinal direction of the top plate portion 29. Bulge
34 is elongated in the same direction as the insertion hole 24 of the positioning body 22,
A mounting hole 35 having a diameter larger than that of the insertion hole 24 is formed.

On the other hand, the instrument body 18 to which the positioning body 22 is integrally mounted is provided with a mounting member 37 located substantially at the center of the positioning body 22. And this mounting member 37,
It is composed of an operating body 38 and a coil spring 39 as a biasing means.

Further, the operation body 38 is provided with a rotary shaft 41 whose lower end projects below the instrument body 18 in an insertion hole 24 of the positioning body 22 integrally attached to the instrument body 18.
Then, an elongated knob portion 42 as a mounting portion is formed at the lower end of the rotary shaft 41 projecting downward from the instrument body 18, and the lower end edge is formed in an arc shape in the orthogonal direction, and this knob portion 42 is formed.
Is dimensioned so that it can be inserted into the attachment hole 35 of the reflection plate 28 and cannot be inserted into the insertion hole 24 of the positioning body 22.

Further, a slender rod-shaped latching portion 43 is formed at a substantially central portion of the rotary shaft 41 in a direction orthogonal to the longitudinal direction of the knob portion 42 and in a direction orthogonal to the rotary shaft 41. The portion 43 is formed so that it can be inserted into the insertion hole 24 of the positioning body 22.

The operating body 38 rotates the knob portion 42 to rotate the rotary shaft 41, and when the latch portion 43, which is the second rotation position, is positioned to be insertable into the insertion hole 24, The portion 42 is orthogonal to the mounting hole 35 of the reflection plate 28 so that it cannot be inserted, and
When the knob portion 42, which is the rotational position of, is positioned so that it can be inserted into the mounting hole 35, the hooking portion 43 is orthogonal to the insertion hole 24 so that it cannot be inserted.

Further, a pin 45 is provided in the orthogonal direction at the upper end of the rotary shaft 41 located inside the instrument body 18.
Then, between the pin 45 and the upper surface of the positioning body 22, a coil spring is pulled so that the operating body 38 is pulled upward.
39 is provided, and the hooking portion 43 is inserted through the insertion hole 24 and
38 is pulled upward by the restoring force of the coil spring 39, which is the urging direction, and by the upward movement of the operating body 38,
The reflector 28 locked to the knob 42 and the edge 32 of the ceiling plate 16
Is attached and held in contact with the lower surface of the edge of the mounting opening 17.

The length of the latching portion 43 in the longitudinal direction is smaller than the inner diameter of the coil spring 39, so that the latching portion 43 can be inserted through the coil spring 39.

Next, the mounting operation of the above embodiment will be described.

First, the positioning member 22 is integrally attached to the instrument body 18 together with the attachment member 37, the instrument body 18 is inserted into the attachment opening 17 of the ceiling plate 16, and the anchor bolt 11 is inserted through the instrument body 18 not shown. Insert into the hole. Then, the washer 13 is inserted into the male threaded portion 12 and the nut 14 is screwed until the abutting portion 25 of the positioning body 22 is locked to the edge of the mounting opening 17, and the instrument body 18 is attached to the ceiling.

As shown in FIGS. 2 to 4, the mounting member 37 is pressed by the pin 45 against the urging direction so as to crush the coil spring 39, so that the hooking portion 43 of the operating body 38 is released. It comes into contact with the lower surface of the positioning body 22 and is orthogonal to the insertion hole 24,
Keep 38 in the first rotational position so that it does not move upwards. Then, in this state, a predetermined gap is formed between the lower surface of the positioning body 22 and the knob portion 42 of the operation body 38, and the knob portion 42 can be easily inserted into the mounting hole 35 of the reflection plate 28. There is.

Next, the reflection plate 28 is inserted through the mounting opening 17 of the ceiling plate 16, and as shown in FIGS. 2 and 3, the knob portion 42 of the operating member 38 of the mounting member 37 is inserted into the mounting hole 35 of the reflection plate 28. Through. Then, the knob portion 42 is rotated about a quarter turn, and the knob portion 42 is rotated in the longitudinal direction of the mounting hole 35, which is the second rotation position.
So that the longitudinal direction of is orthogonal.

Due to the rotation of the knob portion 42, the latching portion 43 also rotates together with the rotary shaft 41, so that the longitudinal direction of the latching portion 43 can be inserted along the longitudinal direction of the insertion hole 24 of the positioning body 22. Located in the rotating position. Then, by the restoring force of the crushed coil spring 39, the hooking portion 43 is inserted into the insertion hole 24 and moved into the coil spring 39, and the operating body 38
Moves upward, and this upward movement causes the knob portion 42
The reflection plate 28 that is locked to is moved upward, the edge portion 32 of the reflection plate 28 contacts the edge of the mounting opening 17 of the ceiling plate 16, and the reflection plate 28 is held and attached to the instrument body 18.

When the reflector 28 is removed for maintenance or the like, the knob portion 42 is pulled downward so that the hook portion
43 is inserted into the insertion hole 24 of the positioning body 22 and pulled out below the instrument main body 18, and in this pulled state, the knob portion 42 is rotated about a quarter, and the longitudinal direction of the knob portion 42 is attached to the reflection plate 28. The hole 35 is located at a first rotational position where it can be inserted along the longitudinal direction. Then, due to the weight of the reflector 28, the mounting hole
The knob 42 is removed from 35, and the reflector 28 is removed.

Therefore, it is not necessary to attach the reflector 28 with a separate decorative screw or the like as in the conventional case, and the instrument body 18
The knob 42 of the operating body 38 of the mounting member 37 provided on the
Simply insert it through the mounting hole 35 and rotate the knob 42,
The reflector 28 can be easily attached, and the workability of attaching the reflector 28 can be improved. Further, the reflecting plate 28 can be easily removed by simply rotating the pulling portion 42 while pulling the knob portion 42.

Further, since the mounting member 37 is provided on the instrument body 18 without using a separate decorative screw or the like, the number of parts is reduced, the decorative screw or the like is not lost, and the parts can be easily managed.

Further, since the reflecting plate 28 can be held with a constant holding force by the restoring force of the coil spring 39, the variation in the screwing strength of the decorative screw or the like depending on the installation builder, for example, the weakening of the screwing causes the reflection. A gap is created between the edge portion 32 of the plate 28 and the lower surface of the ceiling plate 16, and the aesthetic appearance is impaired.The strong screws make it difficult to remove the decorative screw, and the removal of the reflector plate 28 for maintenance management is complicated. Can also be prevented.

In the above embodiment, the instrument main body 18 is described as being supported and fixed by the anchor bolts 11, but it is also supported by screwing, locking by a hooking ceiling or the like attached to the lower surface of the ceiling plate 16. A fixing means may be used. Further, the same effect can be obtained not only in the instrument main body 18 in which the straight tube type fluorescent lamp is mounted but also in any one in which the reflection plate 28 is mounted.

Further, although the positioning body 22 is attached to the instrument main body 18 and the mounting member 37 is positioned and provided on the positioning body 22, the positioning body 22 is not used and the mounting member is directly attached to the instrument main body 18.
37 may be provided.

Further, the operating body 38 has been described by providing the rod-shaped hooking portion 43 and the knob portion 42 on the rotating shaft 41 in the direction orthogonal to each other. However, the hooking portion 43 is inserted into the insertion hole 24 of the instrument body 18. At this time, any shape may be used as long as the knob portion 42, which is a mounting portion, is formed so that the mounting hole 35 of the reflection plate 28 cannot be inserted therethrough. Further, although the coil spring 39 is used as the biasing means in the description, any means such as one utilizing an elastic force may be used.

[0035]

According to the luminaire of the present invention, when the reflector is not attached to the luminaire body, the luminaire body is located between the biasing means and the hooking portion of the rotary shaft, and the mounting member is provided on the luminaire body. Since the mounting member is not separated from the instrument body, the mounting workability is improved, and the instrument body and the reflection plate are positioned between the urging means and the attachment portion and urged by the urging means. Since the reflector is attached to the instrument body in this state,
The reflector can be securely held and fixed to the instrument body with a constant holding force.

[Brief description of drawings]

FIG. 1 is a front sectional view showing an embodiment of a lighting fixture of the present invention.

FIG. 2 is a front sectional view showing a mounting state of the same reflector.

FIG. 3 is a perspective view of the same.

FIG. 4 is a side sectional view showing a state of a mounting member before the same reflector is mounted.

FIG. 5 is a plan view in which a part is cut away after the same reflector is attached.

FIG. 6 is a partially cutaway front view showing an embodiment of a conventional lighting fixture.

[Explanation of symbols]

 18 Instrument main body 24 Insertion hole 28 Reflector plate 35 Mounting hole 37 Mounting member 39 Coil spring as biasing means 41 Rotating shaft 42 Knob part as mounting part 43 Locking part

Claims (1)

[Claims] 1. An attachment main body having an insertion hole, a reflection plate having an attachment hole facing the insertion hole, and an attachment member attached to the attachment main body for attaching the reflection plate to the attachment main body. The member has a rotating shaft that is inserted into the insertion hole and the mounting hole and is rotatable, and a member that is provided at one end of the rotating shaft and that can be inserted into the mounting hole when the rotating shaft is rotated to a first predetermined position. An attaching portion, an urging means provided on the other end side of the rotating shaft for urging the attaching portion in a pulling direction, and the attaching portion which is provided substantially in the middle in the axial direction of the rotating shaft and is inserted into the attaching hole. A lighting fixture having a hooking portion that can be inserted into the insertion hole when the rotation shaft is rotated to a second predetermined position different from the first predetermined position.