Lighting fixture

The present invention relates to a luminaire and is particularly suitable as a luminaire installed between two pairs of T-bars arranged at a ceiling position.

The T-bars arranged at the ceiling position are suspended in pairs or substantially parallel to each other on a horizontal member made of, for example, lip channel steel (C channel). The T-bar is a strip-shaped lower end horizontal piece that is continuous in one direction of the ceiling position and is horizontal or almost horizontal, and is projected upward from the center of the lower end horizontal piece in the width direction, in the same direction as the lower end horizontal piece. It is composed of a vertically continuous vertical piece or a substantially vertical strip-shaped vertical piece. The fixture body of the luminaire is located above the lower end horizontal pieces of these T-bars and between the vertical pieces of the pair of T-bars, to which the illuminant is attached. As such a lighting device, for example, there is one described in Patent Document 1 below. This lighting fixture is a fixture that can be moved in the longitudinal direction of the fixture body on the upper surface of the fixture body with the fixture body placed above the horizontal piece at the lower end of the T-bar and between the vertical pieces of the pair of T-bars. , And one pair of locking tools that lock to the upper end of the vertical piece of the T-bar is provided at each of the outer ends of the fixture body in the width direction. Then, at least one of these locking tools is fixed to the mounting tool by a knob screw, and the locking tool is rotated around the knob screw with the knob screw loosened so that the locking tool becomes an instrument. It is designed so that it can be retracted inward in the width direction of the main body. In this luminaire, the fixture body can be inserted between two pairs of T-bars with at least one of the pair of locking fixtures retracted inward in the width direction of the fixture body, and the T-bar of the fixture body. After inserting into the space, the locking tool in the retracted position is rotated outward in the width direction of the device body, so that two pairs of locking tools are locked to the vertical piece of the T bar and the device body is locked to the T bar. Can be installed in between.

<p num="0003"><patcit num="1"><text>Japanese Patent No. 3812034</text></patcit></p>

<p num="0004"> However, in the lighting fixture described in Patent Document 1, after the fixture body is inserted between the T-bars, the locking tool in the retracted position is rotated outward in the width direction of the fixture body, or after the locking tool is rotated. Since the operation of rotating and tightening the corresponding knob screw must be performed on the upper side of the instrument body inserted between the T-bars, there is room for improvement in workability. The present invention has been made by paying attention to the above-mentioned problems, and an object of the present invention is to provide a lighting fixture capable of improving the workability of mounting the fixture body between T-bars.</p>

<p num="0005"> In order to solve the above problems, according to one aspect of the present invention, a strip-shaped lower end horizontal piece that is continuous and horizontal or almost horizontal in one direction of the ceiling position and a lower end horizontal piece that is upward from the center in the width direction. Two pairs of T-bars, which are projecting in a direction and are composed of a vertical or almost vertical strip-shaped vertical piece which is continuous in a longitudinal direction in one direction, are arranged in a pair in parallel or almost in parallel at a ceiling position, and a pair thereof. A lighting fixture installed between T-bars, located above the lower horizontal piece of the T-bar and between the vertical pieces of a pair of T-bars, to which a illuminant is attached, and which is longitudinal in the longitudinal direction of the T-bar. Two pairs of slide members that are attached to the main body and at least both ends in the longitudinal direction of the instrument body and slide at the upper end of the instrument body and slide in the width direction of the instrument body, and of each of the slide members, the instrument body A luminaire is provided that is provided at the lateral outer tip and has an engaging portion that engages the upper end of a vertical piece of T-bar.</p>

<p num="0006"> In the lighting fixture of the present invention, the slide member can be slid and fixed from below the fixture body while the fixture body is arranged between the T-bars, so that the fixture body can be easily attached between the T-bars. Can be improved.</p>

<figref num="1">It is an exploded view which shows the 1st Embodiment of the luminaire of this invention.</figref><figref num="2">It is a perspective view of the state in which the instrument main body of FIG. 1 is arranged between two pairs of T-bars.</figref><figref num="3">It is a front view of the state where the instrument body of FIG. 1 is attached between two pairs of T-bars.</figref><figref num="4">It is a perspective view of the state in which the lighting fixture of FIG. 1 is attached between two pairs of T-bars.</figref><figref num="5">It is an exploded view which shows the 2nd Embodiment of the luminaire of this invention.</figref><figref num="6">It is explanatory drawing of the same shape slide member of the luminaire of FIG.</figref><figref num="7">It is explanatory drawing in the case of combining two slide members of the same shape of FIG. 6 in a pair.</figref><figref num="8">It is a front view of the state where the instrument body of FIG. 5 is attached between two pairs of T-bars.</figref><figref num="9">It is a perspective view of the state in which the lighting fixture of FIG. 5 is attached between two pairs of T-bars.</figref>

The embodiments shown below exemplify devices and methods for embodying the technical idea of the present invention, and the technical idea of the present invention includes materials, shapes, structures, arrangements, etc. of components. Is not specified as the following. The technical idea of the present invention may be modified in various ways within the technical scope specified by the claims stated in the claims. Next, the first embodiment of the luminaire of the present invention will be described with reference to the drawings. FIG. 1 shows an exploded view of the luminaire of this embodiment, and FIG. 2 shows a perspective view of the luminaire main body 1 of FIG. 1 arranged between two pairs of T-bars T. As shown in FIG. 2, two pairs of T-bars T are suspended on a horizontal member M such as lip channel steel (C channel). Since the layout of the horizontal member M and the T-bar T is described in detail in Patent Document 1 described above, detailed description thereof will be omitted here. Any number of pairs of T-bars may be arranged at the ceiling position. Further, when a plurality of pairs of T-bars are arranged at the ceiling position, the directions of the pairs do not have to match each other.

As described above, the T-bar T is provided so as to have a strip-shaped lower end horizontal piece H that is continuous and horizontally or almost horizontal in one direction of the ceiling position and a lower end horizontal piece H that projects upward from the center in the width direction. , A vertical or almost vertical strip-shaped vertical piece V that is continuous in the same direction as the lower end horizontal piece H. The T-bars T are arranged in pairs in parallel or substantially parallel to each other at the ceiling position, and the fixture body 1 of the luminaire of this embodiment is placed between the pair of T-bars T. Therefore, the instrument body 1 is longitudinal in the longitudinal direction of the T-bar T. In addition, below this, a state in which the instrument body 1 is arranged between a pair of T-bars T as shown in FIG. 2, more specifically, the instrument body 1 is placed above the lower end horizontal piece H of the T-bar T and a pair. As explained in the state of being arranged between the vertical pieces V of the T bar T, the vertical direction in the text coincides with the vertical direction in the figure, and the longitudinal direction of the instrument body 1 and the width direction of the instrument body 1 are orthogonal to each other in the horizontal plane. Use as a reference for direction. Further, the longitudinal direction of the instrument body 1 is simply described as the longitudinal direction of the instrument body, and the width direction of the instrument body 1 is simply described as the width direction of the instrument body.

The fixture body 1 of the lighting fixture of this embodiment is a straight tube type light emitting diode (hereinafter referred to as LED (Light Emitting)). Diode)) Two lamps F are attached and used as light emitters. Therefore, the isosceles trapezoidal cross section having an upwardly narrowed shape in the width direction of the instrument body is continuous in the longitudinal direction of the instrument body 1 to form the main body 2 of the instrument body 1. Therefore, the main body 2 of the fixture main body 1 has an open lower end and is long in the longitudinal direction of the fixture main body, and the longitudinal direction of the main body 2 and the longitudinal direction of the straight tube LED lamp F are matched with each other. Straight tube LED lamps F are arranged and stored in the width direction of the pair of fixtures. Among the lower openings of the main body 2, a reflection branch member 52 for dividing the LED lamp accommodating portion and reflecting the light emitted from the straight tube LED lamp F is provided between the two straight tube LED lamps F. It is attached. Further, a peripheral edge portion 3 is formed on the lower peripheral edge of the main body portion 2. Further, the upper surface portion 4 of the main body portion 2 is provided with a circular hole 51 for wiring. The instrument body 1 is formed by bending a metal plate material or joining / connecting by spot welding or the like. Incidentally, even if the instrument body 1 of this embodiment is arranged between the pair of T-bars T, the instrument body 1 is configured so as not to interfere with the horizontal member M.

Of the main body 2 of the instrument main body 1, the upper surface 4 forming the upper side of the isosceles trapezoidal cross section is formed with elongated holes 5 elongated in the width direction of the instrument body at both ends in the longitudinal direction of the instrument body. There is. The slotted hole 5 is inserted with a screw portion of a set screw screwed into a slide member described later. In this embodiment, the elongated holes 5 are formed above the mounting portions of the two light emitters composed of the straight tube LED lamps F, that is, above the accommodating portions of the two straight tube LED lamps F. .. Therefore, two pairs of elongated holes 5 are formed at one end of the main body 2 in the longitudinal direction of the instrument main body. The longitudinal end of the instrument body 1 includes not only a complete longitudinal end but also a portion corresponding to the longitudinal end. Further, as shown by the alternate long and short dash line in FIG. 1 or 4, a plurality of pairs of elongated holes 5 may be formed at both ends of the main body 2 in the longitudinal direction of the instrument main body. Further, the elongated hole 5 may be formed in a portion of the main body portion 2 other than both ends in the longitudinal direction of the instrument main body, whereby it can be used properly depending on the arrangement state of the T bar T. That is, it is possible to arrange the slide member while avoiding the portion where the T bar T is significantly deformed and the portion where the T bar T interferes with the slide member described later.

Two pairs of slide members 6 and 7 are arranged above the portion where the elongated hole 5 is formed in the main body 2 of the instrument main body 1. The pair of two slide members 6 and 7 slide in the width direction of the instrument body, respectively, and in this embodiment, the pair of slide members 6 and 7 is composed of a combination of the first slide member 6 and the second slide member 7. Of these, the first slide member 6 is a rectangular first slide member base 6a arranged on one outside in the width direction of the instrument body, and the other outside in the width direction of the instrument body from the first slide member base 6a. A rectangular flat plate-shaped slide surface portion 9 projecting toward the surface, and a slide member side elongated hole 10 formed on the slide surface portion 9 and elongated in the width direction of the instrument body, and a first slide member base portion 6a. It is configured with a screw hole 11 and a screw hole 11. The first slide member 6 is arranged in direct contact with the upper surface of the upper surface portion 4 of the main body portion 2 of the instrument main body 1.

On the other hand, the second slide member 7 is composed of the upper surface of the slide surface portion 9 of the first slide member 6, that is, the second slide member base portion 7a in a plan view mounted on the slide surface. Therefore, the second slide member 7 is arranged on the outside of the first slide member base 6a of the first slide member 6 in the width direction of the instrument body. Further, a screw hole 11 is also formed in the second slide member base portion 7a. The first slide member 6 and the second slide member 7 are fixed to the main body 2 by a set screw 12 in which the screw portion 12b is inserted into the slot 5 from below the main body 2 of the instrument main body 1. The set screw 12 has a screw portion 12b and a knob portion 12a, and is used with the screw portion 12b facing upward and the knob portion 12a facing downward.

When fixing the first slide member 6 to the main body 2 of the instrument main body 1, the threaded portion 12b of the set screw 12 is passed through the elongated hole 5 from below the main body 2 of the instrument main body 1 and the first slide member base. The first slide member 6 is fixed to the main body 2 of the instrument main body 1 by screwing and tightening the screw hole 11 of 6a. Further, when the second slide member 7 is fixed to the main body 2 of the instrument main body 1, the screw portion 12b of the set screw 12 inserted into the slot 5 from below the main body 2 of the instrument main body 1 is further added to the second slide member 7. 1 Insert the slide member 6 into the long hole 10 on the slide member side, screw the insertion portion into the screw hole 11 of the second slide member base 7a, and tighten it so that the second slide member 7 also becomes the main body 2 of the instrument body 1. It is fixed.

Further, if the set screw 12 for fixing each of the first slide member 6 and the second slide member 7 is loosened, each of the first slide member 6 and the second slide member 7 is slid in either the width direction of the instrument body. be able to. In this case, the slotted hole 5, the slotted hole 10 on the slide member side, and the threaded portion 12b of the set screw 12 inserted through them form an instrument for each of the paired first slide member 6 and second slide member 7. It serves as a slide guide in the width direction of the main body. Further, the rotation operation of the set screw 12 and the slide operation of the first slide member 6 and the second slide member 7 in the width direction of the instrument body are performed by pinching the knob portion 12a of the set screw 12 and lowering the instrument body 1, that is, the chamber. It can be done from the inside.

The first slide member base 6a of the first slide member 6 and the second slide member base 7a of the second slide member 7 are each provided with an engaging portion 13 having the same shape. The engaging portion 13 engages with the upper end portion of the vertical piece V of the T bar T, and is the outer tip portion in the width direction of each of the first slide member 6 and the second slide member 7, that is, the first slide member 7. It is provided on the slide member base 6a and the second slide member base 7a. The engaging portion 13 projects from the first slide member base 6a and the second slide member base 7a toward the outside in the width direction of the instrument body, and is mounted on the upper end surface of the vertical piece V of the T bar T. When the first slide member base 6a and the second slide member base 7a are projected outward in the width direction of the instrument body, and the first slide member and the second slide member 7 are slid outward in the width direction of the instrument body. It is provided with a contact portion 15 that abuts on the inner side surfaces of the vertical pieces V of the pair of T bars T facing each other.

Further, in this embodiment, the retaining portion 16 is formed downward from the protruding tip portion of the mounting portion 14. When the first slide member 6 and the second slide member 7 are slid inward in the width direction of the instrument body, the retaining portion 16 easily falls off from the upper end surface of the vertical piece V of the T bar T. It is for regulating. The first slide member 6, the second slide member 7, and the engaging portion 13 are formed by bending a metal plate material or joining / connecting by spot welding or the like.

When the fixture body 1 of the lighting fixture of this embodiment is attached between two pairs of T-bars T, the pair of first slide members 6 and the second slide member 7 are retracted inward in the width direction of the fixture body. Insert the instrument body 1 between the pair of T-bars T while in the state. At this time, the outer end portion of the first slide member 6 and the second slide member 7 retracted inward in the width direction of the instrument body in the width direction of the instrument body, that is, the mounting portion 14 of the engaging portion 13 and the tip portion of the contact portion 15 Since it is located at the outer end of the instrument body 1 in the width direction of the instrument body, that is, inside the peripheral portion 3 in the width direction of the instrument body, the first slide member 6 and the second slide member 7 interfere with the T bar T. There is no.

After inserting the instrument body 1 between the pair of T-bars T, lift the instrument body 1 slightly, pinch the set screw 12 knob 12a with the set screw 12 loose, and each set screw 12 knob 12a. Is moved outward in the width direction of the instrument body, and each of the first slide member 6 and the second slide member 7 is slid outward in the width direction of the instrument body. When each of the first slide member 6 and the second slide member 7 is slid outward in the width direction of the instrument body, as shown in FIG. 3, the contact portion 15 of the engaging portion 13 is a vertical piece V of a pair of T bars T. Since it abuts on the inner side surfaces facing each other, in that state, rotate the knob portion 12a to screw and tighten the set screw 12, and fix the first slide member 6 and the second slide member 7 to the main body portion 2 of the instrument main body 1. To do. As a result, the instrument body 1 is positioned between the pair of T-bars T.

At this time, if the building in which the lighting equipment is installed has been built for a long time, the pair of T-bars T may not be parallel to each other. In the lighting fixture of this embodiment, when the fixture body 1 is positioned, the first slide member 6 and the second slide member 7 freely slide in the width direction of the fixture body, so that the fixture body 1 is slid into a pair of T-bars T. It can be freely arranged between the instruments in the width direction of the instrument body, and as a result, the instrument body 1 can be positioned at an appropriate position. Then, if the instrument body 1 is lowered in this state, the mounting portion 14 of the engaging portion 13 is mounted on the upper end surface of the vertical piece V of the T bar T, and as shown in FIG. 4, the instrument body 1 is paired. It is installed between T bars and T. When the fixture body 1 is attached between the pair of T-bars T, the straight tube LED lamp F and the reflection branch member 52, which are light emitters, are attached to the fixture body 1, and the installation of the lighting fixture is completed.

When the straight tube LED lamp F is housed in the LED lamp housing of the main body 2 of the fixture body 1 and installed, the slotted hole 5 and the set screw 12 are located above the straight tube LED lamp F, so from below, that is, in the room. From the inside, the slotted hole 5 and the set screw 12 are hidden behind the straight tube LED lamp F and cannot be seen, and the appearance is good. If a plurality of pairs of elongated holes 5 formed in the main body 2 of the main body 1 are formed at both ends in the longitudinal direction of the main body 2 of the main body 2, the interfering object and the first slide member 6 and the second slide member 7 can be formed. The first slide member 6 and the second slide member 7 can be arranged at appropriate positions while avoiding the interference of the first slide member 6 and the second slide member 7.

As described above, in the luminaire of this embodiment, two T-bars T including the lower end horizontal piece H and the vertical piece V are arranged in a pair in parallel or substantially parallel to each other at the ceiling position, and the pair of Ts. When a lighting fixture can be attached between the bars T, at least two pairs of sliding members 6 and 7 that slide in the width direction of the fixture body are attached to the upper ends of both ends of the fixture body 1 in the longitudinal direction. .. Further, an engaging portion 13 that engages with the upper end portion of the vertical piece V of the T bar T is provided at the tip end portion of each of the slide members 6 and 7 in the width direction of the instrument body. As a result, the slide members 6 and 7 can be slid in the width direction of the instrument body and fixed to the instrument body 1 from below the instrument body 1 while the instrument body 1 is arranged between the T bars T. Therefore, the workability of mounting the instrument body 1 between the T bars and T can be improved.

Further, an elongated hole 5 elongated in the width direction of the instrument body is formed at the upper end of the instrument body 1, and a set screw 12 through which the elongated hole 5 is passed is screwed into the slide members 6 and 7. As a result, the slide members 6 and 7 can be slid in the width direction of the instrument body and fixed to the instrument body 1 from below with the set screw 12 pinched, and the instrument body 1 between the T bars and T can be used. It is possible to surely improve the mounting workability of the.

Further, by forming a long hole 5 above the mounting portion of the straight tube LED lamp (light emitting body) F in the fixture body 1, after mounting the light emitting body, the long hole 5 and the set screw 12 are the straight tube LED lamp (light emitting body). Light emitter) Hidden in F and cannot be seen from the inside of the room. Further, the engaging portion 13 includes a mounting portion 14 which is projected from the slide members 6 and 7 toward the outside in the width direction of the instrument body and is mounted on the upper end surface of the vertical piece V of the T bar T, and the slide member 6. A contact portion 15 is provided which is projected from 7 toward the outside in the width direction of the instrument body and abuts on the inner side surfaces of the vertical pieces V of the pair of T bars T facing each other. As a result, the instrument body 1 can be easily and appropriately positioned between the T-bars T, and the instrument body 1 can be easily mounted between the T-bars T to further improve the mounting workability.

Further, two pairs of slide members are composed of a first slide member 6 that directly contacts the upper end portion of the instrument body 1 and a second slide member 7 mounted on the first slide member 6. 2 On the slide surface portion 9 of the first slide member 6 on which the slide member 7 is mounted, a slide member side elongated hole 10 elongated in the width direction of the instrument body for inserting the set screw 12 screwed into the second slide member 7 is provided. Formed. As a result, the elongated hole 5 on the instrument body 1 side, the elongated hole 10 on the slide member side, and the set screw 12 serve as guides to each other, and the slide of the first slide member 6 and the second slide member 7 in the instrument body width direction is stable. To do.

Next, a second embodiment of the luminaire of the present invention will be described with reference to the drawings. FIG. 5 shows an exploded view of the luminaire of this embodiment. Since the layout of the horizontal member M such as the pair of T-bars T and the lip channel steel (C channel) in this embodiment is the same as that in the first embodiment, detailed description thereof will be omitted. As in the first embodiment, the description of the second embodiment describes the state in which the instrument body 1 is arranged between the pair of T-bars T, and more specifically, the instrument body 1 is placed on the lower end horizontal piece of the T-bar T. The explanation shall be made with the device placed on the upper side of H and between the vertical pieces V of the pair of T-bars T. It is used as a reference in two directions orthogonal to each other.

The fixture body 1 of the lighting fixture of this embodiment is used by attaching one line-type LED unit E as a light emitting body. Therefore, as in the first embodiment, the isosceles trapezoidal cross section having a cross-sectional shape orthogonal to the longitudinal direction of the instrument body and having an upward recess and the square cross section connected above the isosceles trapezoid are continuously formed in the longitudinal direction of the instrument body. It constitutes the main body 2 of the instrument main body 1. The main body 2 has an open lower end and is long in the longitudinal direction of the instrument main body, and one line LED unit E is formed by matching the longitudinal direction of the main body 2 with the longitudinal direction of the line LED unit E. Place and store in the center of the instrument body in the width direction. A peripheral edge portion 3 is formed on the lower peripheral edge of the main body portion 2 as in the first embodiment. Further, the upper surface portion 4 of the main body portion 2 is provided with a circular hole 51 for wiring. The instrument body 1 is formed by bending a metal plate material or joining / connecting by spot welding or the like. Incidentally, even if the instrument body 1 of this embodiment is arranged between the pair of T-bars T, the instrument body 1 is configured so as not to interfere with the horizontal member M.

Of the main body 2 of the instrument main body 1, the upper surface 4 forming the upper side of the square cross section is formed with elongated holes 5 elongated in the width direction of the instrument body at both ends in the longitudinal direction of the instrument body. However, in the figure, it is hidden by a guide member 17 described later, and is formed at the same position as the guide member side elongated hole 18 formed in the guide member 17. The slotted hole 5 is through which the threaded portion 12b of the set screw 12 screwed into the slide member described later is inserted. In this embodiment, the elongated hole 5 is formed above the mounting portion of the light emitter composed of the line LED unit E, that is, above the accommodating portion of the line LED unit E. Further, the elongated holes 5 are formed in pairs in the longitudinal direction of the instrument body at one end of the main body 2 in the longitudinal direction of the instrument body. The longitudinal end of the instrument body 1 includes not only a complete longitudinal end but also a portion corresponding to the longitudinal end. Further, as shown by the alternate long and short dash line in FIG. 5 or 9, a plurality of pairs of elongated holes 5 may be formed at both ends of the main body 2 in the longitudinal direction of the instrument main body, as in the first embodiment. Further, the elongated holes 5 may be formed in a portion of the main body 2 other than both ends in the longitudinal direction of the instrument main body.

A guide member 17 is joined to the upper surface portion 4 of the portion where the elongated hole 5 is formed in the main body portion 2 of the instrument main body 1, and two pairs of slide members 8 are above the guide member 17. Have been placed. Of these, the guide member 17 is formed by bending a relatively thin rectangular metal plate material into a bridge shape, and its leg portion 17a is joined to both ends of the peripheral portion 3 of the instrument body 1 in the width direction of the instrument body, and the leg portion 17a is formed. The connecting portion 17b between them is joined to the upper surface portion 4 of the main body portion 2. Further, a guide member side elongated hole 18 similar to the elongated hole 5 of the main body 2 is formed in the connecting portion 17b of the guide member 17, and both ends of the connecting portion 17b in the longitudinal direction of the instrument body are bent upward to guide the guide member. The side guide portion 19 is configured. As will be described later, the guide member 17 stably guides the slide of the slide member 8 in the width direction of the fixture body, but the lighting fixture of this embodiment is established without the guide member 17. To do. On the other hand, by interposing the guide member 17, the slide member can be easily arranged even on the instrument body whose upper surface is not flat.

The two pairs of slide members 8 slide in the width direction of the instrument body, respectively, and in this embodiment, they are composed of a combination of two slide members 8 having the same shape. FIG. 6A shows a plan view of the isomorphic slide member 8, and FIG. 6B shows a bottom view of the isomorphic slide member 8. The isomorphic slide member 8 is formed from a plan-viewing rectangular isomorphic slide member base 8a arranged on both outer sides in the width direction of the instrument body and an isomorphic slide member base 8a having the same height in the vertical direction as the isomorphic slide member base 8a. The same as the projecting portion 20 from the isomorphic slide member base 8a so as to be adjacent to the projecting portion 20 at a position higher in the vertical direction than the flat plate-shaped projecting portion 20 projecting in the width direction of the instrument body and the isomorphic slide member base 8a. It is configured to include a rectangular flat plate-shaped regulating portion 21 in a plan view that protrudes in the direction and is discontinuous with the protruding portion 20.

In this embodiment, the isomorphic slide member base 8a and the projecting portion 20 are formed of the same metal plate material, and the regulation portion 21 of another member also formed of the metal plate material is spot welded to the upper surface of the isomorphic slide member base 8a. The same-shaped slide member 8 is formed by being joined by such means. Further, in this embodiment, the slide member side guide portion 22 is formed by bending both ends of the same-shaped slide member base portion 8a and the protrusion 20 in the longitudinal direction of the instrument body upward. The outer surface of the slide member side guide portion 22 in the longitudinal direction of the instrument body slides into contact with the inner surface of the guide member side guide portion 19 in the longitudinal direction of the instrument body, and the slide of the slide member 8 having the same shape in the width direction of the instrument body is guided.

Further, a screw hole 11 is formed in the protruding portion 20 of the slide member 8 having the same shape, and a long hole 10 on the slide member side is formed in the regulating portion 21. Of these, the screw hole 11 formed in the protruding portion 20 of the slide member 8 having the same shape is the one in which the screw portion 12b of the set screw 12 inserted into the elongated hole 5 is screwed from below the main body portion 2 of the instrument main body 1. Is. This set screw 12 has a screw portion 12b and a knob portion 12a, and is used with the screw portion 12b facing upward and the knob portion 12a facing downward. Therefore, if the threaded portion 12b of the set screw 12 inserted into the slotted hole 5 is screwed into the screw hole 11 formed in the protruding portion 20 of the isomorphic slide member 8 and tightened, the isomorphic slide member 8 becomes the main body portion of the instrument body 1. Fixed to 2. Then, the screw portion 12b of the set screw 12 screwed into the mating slide member 8 on the mating side forming the pair is inserted into the slide member side elongated hole 10 formed in the regulation portion 21 of the same shape slide member 8.

When these two slide members 8 having the same shape are combined to form a pair, as shown in FIG. 7, the protruding portion 20 and the regulating portion 21 face each other so that the regulating portion 20 is above the protruding portion 20. Insert 21. As a result, since the regulating portion 21 is superposed on the protruding portion 20 of the paired pair of the same-shaped slide members 8, the screw of the set screw 12 screwed into the screw hole 11 of the protruding portion 20. The protruding portion of the portion 12b penetrates the elongated hole 10 on the slide member side of the regulating portion 21. Therefore, as described above, the set screw 12 in which the screw portion 12b is inserted into the elongated hole 5 from below the main body portion 2 of the instrument main body 1 is screwed into the screw hole 11 of the protruding portion 20 of the slide member 8 of the same shape and tightened. For example, the two isomorphic slide members 8 are fixed to the instrument body 1 respectively.

Further, by loosening the set screw 12 for fixing each of the isomorphic slide members 8, each of the isomorphic slide members 8 can be slid in any direction in the width direction of the instrument body. In this case, the elongated hole 5, the elongated hole 10 on the slide member side, and the threaded portion 12b of the set screw 12 inserted therein are also slide guides in the width direction of the instrument body with respect to each of the paired isomorphic slide member 8. It becomes. Further, the rotation operation of the set screw 12 and the slide operation of the slide member 8 having the same shape in the width direction of the instrument body can be performed by pinching the knob portion 12a of the set screw 12 from below the instrument body 1, that is, from the indoor side. In this embodiment, two pairs of slide members 8 having the same shape can be slid in the same direction. Then, depending on the installation location, it may be easier to install by sliding two slide members 8 having the same shape in the same direction.

An engaging portion 13 is provided on the isomorphic slide member base 8a of the isomorphic slide member 8. The engaging portion 13 engages with the upper end portion of the vertical piece V of the T bar T as in the first embodiment, and is the outer tip portion in the width direction of each instrument body of the slide member 8 having the same shape, that is, the same shape. It is provided on the slide member base 8a. The engaging portion 13 is projected from the same-shaped slide member base 8a toward the outside in the width direction of the instrument body, and is mounted on the upper end surface of the vertical piece V of the T-bar T from the same-shaped slide member base 8a. A contact portion 15 that is projected outward in the width direction of the instrument body and abuts on the inner side surfaces of the vertical pieces V of the pair of T bars T facing each other when the slide member 8 having the same shape is slid outward in the width direction of the instrument body. And have.

Further, in this embodiment, as in the first embodiment, the retaining portion 16 is formed downward from the protruding tip portion of the mounting portion 14. The retaining portion 16 is for regulating the mounting portion 14 from easily falling off from the upper end surface of the vertical piece V of the T bar T when the slide member 8 having the same shape is slid inward in the width direction of the instrument body. Is. The engaging portion 13 is formed by bending a metal plate material or joining / connecting the metal plate material by spot welding or the like, as in the case of the isomorphic slide member 8. In particular, the contact portion 15 is formed by the isomorphic slide member base 8a. It is made of the same plate material as.

When the fixture body 1 of the lighting fixture of this embodiment is attached between two pairs of T-bars T, the fixture body 1 is retracted inward in the width direction of the fixture body with two pairs of slide members 8 having the same shape. Insert between a pair of T-bars T. At this time, the outer end portion of the same-shaped slide member 8 retracted inward in the width direction of the instrument body in the width direction of the instrument body, that is, the tip portion of the mounting portion 14 and the contact portion 15 of the engaging portion 13 is the instrument body of the instrument body 1. Since the outer end portion in the width direction, that is, the peripheral portion 3 is located inside in the width direction of the instrument body, the isomorphic slide member 8 does not interfere with the T bar T.

After inserting the instrument body 1 between the pair of T-bars T, lift the instrument body 1 slightly, pinch the set screw 12 knob 12a with the set screw 12 loose, and each set screw 12 knob 12a. Is moved outward in the width direction of the instrument body, and each of the two isomorphic slide members 8 is slid outward in the width direction of the instrument body. When each of the two isomorphic slide members 8 is slid outward in the width direction of the instrument body, as shown in FIG. 8, the abutting portions 15 of the engaging portions 13 are the inner surfaces of the vertical pieces V of the pair of T bars T facing each other. In that state, the knob portion 12a is rotated to screw and tighten the set screw 12, and each of the two isomorphic slide members 8 is fixed to the main body portion 2 of the instrument main body 1. As a result, the instrument body 1 is positioned between the pair of T-bars T.

At this time, if the building in which the lighting equipment is installed has been built for a long time, the pair of T-bars T may not be parallel to each other. In the lighting fixture of this embodiment, when the fixture body 1 is positioned, the two isomorphic slide members 8 slide freely in the width direction of the fixture body, as in the first embodiment. It can be freely arranged between the pair of T-bars T in the width direction of the instrument body, and as a result, the instrument body 1 can be positioned at an appropriate position. Then, if the instrument body 1 is lowered in this state, the mounting portion 14 of the engaging portion 13 is mounted on the upper end surface of the vertical piece V of the T bar T, and as shown in FIG. 9, the instrument body 1 is paired. It is installed between T bars and T. When the fixture body 1 is attached between the pair of T-bars T, the line LED unit E, which is a light emitter, is attached to the fixture body 1, and the installation of the lighting fixture is completed.

When the line LED unit E is housed in the line LED unit housing of the main body 2 of the fixture body 1 and attached, the slotted hole 5 and the set screw 12 are located above the line LED unit E, so from below, that is, on the indoor side. From here, the slotted hole 5 and the set screw 12 are hidden behind the line LED unit E and cannot be seen, and the appearance is good. If a plurality of pairs of elongated holes 5 formed in the main body 2 of the instrument main body 1 are formed at both ends of the instrument main body in the longitudinal direction of the main body 2, interference between the interfering object and the slide member 8 having the same shape can be avoided and the same shape can be avoided. The slide member 8 can be arranged at an appropriate position.

As described above, the luminaire of this embodiment has the same effect as that of the first embodiment. Further, two pairs of slide members are composed of a combination of two isomorphic slide members 8 having the same shape, and each of the isomorphic slide members 8 has a flat plate-shaped isomorphic slide member base 8a on which the engaging portion 13 is formed. , At the same height as the isomorphic slide member base 8a in the vertical direction, and at a position higher in the vertical direction than the planar flat plate-shaped projecting portion 20 projecting from the isomorphic slide member base 8a in the width direction of the instrument body. A rectangular flat plate-shaped regulating portion 21 that protrudes from the same-shaped slide member base 8a so as to be adjacent to the protruding portion 20 in the same direction as the protruding portion 20 and is discontinuous with the protruding portion 20 is provided. In 21, a long hole 10 on the side of the slide member, which is long in the width direction of the instrument body, is formed to insert the set screw 12 screwed into the slide member 8 having the same shape on the mating side forming the pair. As a result, the long hole 5 on the instrument body 1 side, the long hole 10 on the slide member side, and the set screw 12 serve as guides to each other, and the slide of the same-shaped slide member 8 in the width direction of the instrument body is stabilized, and two slides are made. By making the members the same shape, the number of parts can be reduced.

In each of the above-described embodiments, the LED lamp or the LED unit is used as the light emitting body, but a fluorescent lamp can be used instead. It goes without saying that the present invention includes various embodiments not described herein. Therefore, the technical scope of the present invention is defined only by the matters specifying the invention described in the reasonable claims from the above description.

1 Instrument body 2 Main body 3 Periphery 4 Top surface 5 long holes 6 1st slide member (slide member) 6a 1st slide member base 7 2nd slide member (slide member) 7a 2nd slide member base 8 Same-shaped slide member (slide member) 8a Same shape slide member base (base) 9 Slide surface 10 Slide member side slot 11 Screw holes 12 Set screw 12a knob 12b screw part 13 Engagement part 14 Mounting part 15 Contact part 16 Retaining part 17 Guide member 18 Guide member side slot 19 Guide member side guide part 20 Overhang 21 Regulatory Department 22 Slide member side guide 51 Circular hole for wiring 52 Reflective branch member M horizontal material TT bar H lower end horizontal piece V vertical piece F straight tube LED lamp (light emitter) E-line LED unit (light emitter)