JPH10106336A - Luminaire and appliance installation structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily insert a luminaire into T-bars from the lower side and install the luminaire by attaining at least one end of an installation tool, which is installed in the upper face of a luminaire main body movably in the longitudinal direction, to move backward in the width direction of the luminaire main body. SOLUTION: A pair of T-bars 2, 3 are bridged over a C channel 1 hung from a ceiling body and installation appliances 4 of a luminaire such a reflecting plate 10, lamps 11, etc., are installed in the luminaire main body 9 through an installation tool 14. In such a luminaire, both ends of the approximately reversely U-shaped luminaire main body 9 are slantingly formed as to be widened outward and the width size of the body is made smaller than the center gap of the T-bars 2, 3 and larger than the tip end gap of horizontal pieces 8 and the height is made lower than the height from the horizontal pieces 8 to the C channel 1. Moreover, the installation tool 14 is made movable in the longitudinal direction of the luminaire main body 9 through a screw 15 engaged with a slit 12 of the luminaire main body 9 and furthermore engaging tools 5 are installed in rotatable manner in both ends of the main body through knob screws 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture and a device mounting structure for equipment including the lighting fixture.

[0002]

2. Description of the Related Art In a conventional system ceiling, as shown in FIGS. 13 and 14, a C channel 50 is hung from a ceiling frame (not shown) via an insert bolt, and a pair of T bars 51, Suspension 52, T bar 5
Lighting equipment 53 is inserted between T and 5
The T-bars 51 and 52 were dropped from the upper side of the T-bars 51 and 52 and engaged with the horizontal pieces 54 at the lower ends.

For this reason, the spacing between the insert bolt and the C channel 50 is set to 1300 to 1400 mm, the length of the lighting fixture 53 is set to 1250 to 1350 mm, and the spacing between the C channels 50 is made longer than the length of the lighting fixture 53. When dropping the lighting fixture 53 as shown by the arrow shown in FIG. 14, the lighting fixture 53 did not interfere with the ceiling components. In addition, the lighting fixture 53 is connected to a pair of T bars 5.
T-bars 51, 5 to ensure that they rest between
The dimensions between the two are as tight as possible,
Is difficult to install from the floor side.

[0004]

However, in recent years, there has been a tendency to remove a conventional ceiling and replace it with a system ceiling, thereby shortening the construction period by shortening the construction time and suppressing noise by newly inserting insert bolts. Therefore, it is difficult to newly insert an insert because rock wool is sprayed on the lower surface of the skeleton, and thus there is a need to reuse a conventional ceiling insert bolt.

However, since the conventional ceiling is provided with 900 mm pitch insert bolts based on the conventional general construction method, the interval of the C channel becomes 900 mm, and the lighting fixture 53 must be dropped from above the T bars 51 and 52. Can not be done. For this reason, it is necessary to be able to construct the lighting fixture 53 even when the conventional ceiling insert bolt is reused.

[0006] For example, Japanese Utility Model Publication No. Sho 63-31295 and Japanese Utility Model Publication No. Sho 63-37015 have disclosed a lighting device inserted from below the T-bar. It has a height equal to or higher than the height from the horizontal piece to the C channel, and a locking member provided on the side surface of the instrument body is locked to the upper end of the T-bar, so that avoiding the C channel is considered. Therefore, this method cannot be applied to a case where a lighting fixture is arranged immediately below a C channel at 900 mm intervals, which is suspended by reusing existing ceiling insert bolts.

[0007] Also, with respect to conventional ceilings, with the recent renovation of ceilings, there has been an increasing need to employ recessed lighting instead of conventional exposure lighting. However, as shown in FIG. 15, when installing the embedded lighting fixture 65,
Insert 6 using bolts for hanging lighting fixture 65
1 had to be newly struck on the ceiling frame 62. In the case of renovation, rock wool was sprayed on the lower surface of the skeleton as described above, or ducts were already installed,
Insertion is often difficult or impossible. Reference numeral 60 denotes a channel, 63 denotes an M bar, and 64 denotes a ceiling material.

[0008] Therefore, it is necessary to be able to construct an embedded lighting fixture without inserting the insert. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a lighting fixture and a device mounting structure that can insert and lock a lighting fixture from below a T-bar without newly inserting and without impairing a channel. .

[0009]

A lighting device according to claim 1, wherein the lighting device is mounted between a pair of T-bars suspended on a horizontal member, and the horizontal-axis portion of the T-bar extends from a lower horizontal piece of the T-bar. An appliance body lower than the height to the lower end of the frame, and both ends of the T-bar mounted so as to be movable in the longitudinal direction of the upper surface of the appliance body so that the lower end of the appliance body is positioned above the lower end horizontal piece. With a fixture locked at the upper end of the
At least one end of the attachment is configured to be retractable toward the center in the width direction of the instrument body.

According to the luminaire of the first aspect, one end of the fixture is retracted to the center in the width direction of the fixture main body, and the fixture main body is inserted between the T-bars from the floor side so that the other of the fixture can be used. The end is locked to the upper end of the T-bar, and one end of the retracted fixture is advanced again to the outside of the instrument body and latched to the upper end of the T-bar, so that the fixture is in the way of the T-bar. Instead, the lighting fixture can be mounted between the pair of T-bars, and the height of the fixture body is lower than the height from the lower horizontal piece of the T-bar to the lower end of the horizontal member. , It can be attached even under the horizontal member, and there is no limitation due to the interval between the horizontal members unlike the conventional case. In addition, at the time of remodeling, 900mm of general conventional building structure
Since the pitch insert bolts can be reused, it is possible to reduce the construction period for remodeling and reduce noise by newly inserting insert bolts. Furthermore, since the mounting position of the lighting equipment can be set arbitrarily, even if the mounting pitch of the insert bolts supporting the horizontal member is set arbitrarily, the lighting equipment set between the pair of parallel T-bars can be set. The line can be easily secured.

According to a second aspect of the present invention, there is provided an equipment mounting structure having a horizontal member suspended from a ceiling frame, a ceiling having a pair of T-bars suspended on the horizontal member, and a lower end horizontal of the T-bar. Lower than the height from one piece to the lower end of the horizontal member, and the pair of T
It has a device main body with a width smaller than the bar interval, and is mounted so as to be movable in the longitudinal direction of the upper surface of the device main body, and both ends thereof are so positioned that the lower end of the device main body is located above the lower horizontal piece. It has a fixture that is locked to the upper end of the T-bar, and at least one end of the fixture includes equipment that is configured to be retractable toward the center in the width direction of the apparatus main body.

According to the device mounting structure of the second aspect, the same effect as that of the first aspect is obtained. According to a third aspect of the present invention, in the device mounting structure according to the second aspect, the T-bar is suspended from the horizontal member via a height adjusting mechanism. According to the device mounting structure of the third aspect, in addition to the same effects as those of the first aspect, the T-bar can be suspended on the horizontal member regardless of the specification of the conventional ceiling. Become.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. That is, the device mounting structure includes the channel 1, the T-bars 2 and 3, the facility device 4 such as a lighting device, and the mounting device 14. Channel 1
Is suspended by insert bolts 6 hanging down from a ceiling frame (not shown). In the embodiment, the channel 1 is a pair of C channels, which are attached to the insert bolts 6 and suspended.

The pair of T bars 2 and 3 are suspended from the channel 1 via a hanger 7. The equipment 4 is inserted and attached between the pair of T-bars 2 and 3, and has a height H ₁ from the lower end horizontal piece 8 of the pair of T-bars 2 and 3 to the lower end of the channel ₁ (FIG. 2A). ) The following height H ₂ (H ₁ > H)
₂ ) having The lighting equipment is applied to the equipment 4 of the embodiment. 9 is a fixture body having the height H _2, the lower end portions on both sides are inclined open outward at an approximately reverse U-shape, the lower end portion is turned-back example outwardly. Also, the width of the lower end, which is the maximum width of the lighting fixture, is smaller than the center distance between the T bars 2, 3 so that both sides of the lower end of the lighting fixture are located above the lower horizontal pieces 8 of the T bars 2, 3. However, it is larger than the interval between the front ends of the lower horizontal pieces 8. Reference numeral 10 denotes a Fuji-shaped reflector disposed at the center of the back surface of the instrument body 9, and reference numeral 11 denotes a pair of straight tube lamps, which are mounted on a lamp socket (not shown). 12 is an upper surface of the instrument body 9 and T-bars 2 and 3.
And a pair of slits formed in parallel with the longitudinal direction for guiding the locking tool, and has a length such that the mounting tool 14 can avoid the channel 1, for example, about 100 to 120 mm.

The fixture 14 is attached so as to be movable in the longitudinal direction of the upper surface of the instrument body 9, and both ends thereof can be retracted toward the center in the width direction of the instrument body 9. Both ends are locked to the upper ends of the T-bars 2 and 3 so as to be located above the lower horizontal piece 8. In the embodiment, the fixture 14 is placed on the upper surface of the instrument body 9, the screw 15 provided on the fixture 14 is movably inserted into the slit 12, and the screw 15 is located inside the instrument body 9. (Not shown) to prevent the screw 15 from being pulled out of the slit 12. By tightening the screw 15, the fixture 14 is fixed to the instrument body 9, and by loosening the screw 15, the fixture 14 can be moved along the slit 12, and the fixture 14 can be avoided from the channel 1. Further, both ends of the mounting member 14 are constituted by a locking member 5 having one end rotatably mounted by a thumb screw 16 using a thumb screw. A screw hole is formed at both ends of the mounting member 14, a screw insertion hole is formed in the locking member 5, and the thumb screw 16 is screwed into the screw hole through the screw insertion hole for attachment. FIG.
The solid line indicates the locked state where the upper ends of the T-bars 2 and 3 protrude outward from the instrument body 9, and from this state the thumbscrew 16 is loosened and rotated 90 degrees about the thumbscrew 16. The state of the line is a state of detachment from the T-bar 2 which has receded to the center side in the width direction of the instrument main body 9, and the T-bars 2, 3 are moved to the floor side without the stoppers 5 at both ends of the fixture 14 being in the way. Can be easily inserted from

As shown in FIG. 2A, the installation of the equipment 4 is performed by setting one of the locking tools 5 to a lockable state and retreating the other locking tool 5 onto the tool body 9. The tool body 9 is inserted between the T-bars 2 and 3, for example, directly below the channel 1 in an oblique posture from the floor side, and the locking tool 5 is locked on the upper end of the T-bar 3 and one of the tool bodies 9 is inserted. Is inserted above the lower horizontal piece 8. Next, as shown in FIG. 3B, the other side 9a of the instrument body 9 is inserted above the lower horizontal piece 8 of the T-bar 3, the instrument body 9 is set in a horizontal position, and the other locking member 5 is screwed. The T-bar 2 is rotated by 90 degrees about the T-bar 2 and locked to the upper end of the T-bar 2 and the screw 16 is tightened. When the instrument body 9 is inserted between the T-bars 2 and 3 and the fixture 14 is located immediately below the channel 1, the fixture 14 is moved along the slit 12 to avoid the channel 1. After fixing the thumbscrew 16, the ceiling material 13 is mounted on the lower horizontal pieces 8 on both outer sides of the T bars 2 and 3. 13a is a ceiling plate for an inspection port.

According to this embodiment, one end of the fixture 14 is retracted toward the center of the instrument body 9 in the width direction, and the instrument body 9 is inserted between the T bars 2 and 3 from the floor side and attached. The other end of the fixture 14 is locked to the upper end of the T bar 3, and the fixture 1 is retracted.
4 is again advanced to the outside of the instrument body 9 and is locked to the upper end of the T-bar 2 so that the fixture 14 is attached to the T-bar 2.
The lighting fixture can be mounted on the pair of T-bars 2 and 3 without disturbing the third fixture 3, and the height of the fixture body 9 is the height from the lower horizontal piece 8 of the T-bars 2 and 3 to the lower end of the channel 1. Since it is lower than that, and the fixture 14 is movable in the longitudinal direction, it can be attached even under the channel 1, and there is no limitation due to the interval between the channels 1 as in the conventional case. In addition, since 900 mm pitch insert bolts 6 of a general conventional building structure can be reused at the time of remodeling, noise reduction by shortening the construction period at the time of remodeling and newly hitting the insert bolts 6 can be achieved. Furthermore, since the mounting position of the lighting fixture can be set arbitrarily, even if the mounting pitch of the insert bolts 6 supporting the channel 1 is set arbitrarily, it is set between the pair of parallel T bars 2 and 3. Lighting equipment can be easily lined up.

FIGS. 4 to 7 show a second embodiment of the present invention. That is, in the first embodiment, the lighting fixture that is the equipment 4 is the locking fixture 1 of the fixture 14.
7 is rotatably attached to both ends of the mounting member 14 by a horizontal shaft 18, forms an inclined guide 17 a on the outer side of the locking member 17, and forms a concave contact portion 17 b at the lower end thereof. The locking member 17 is urged outward by a spring 19 using a torsion coil spring having a winding portion passed therethrough, and a predetermined protrusion amount of the mounting member 17 is regulated by a stopper portion (not shown). Further, in this embodiment, a stabilizer housing box 20 is movably attached to the upper end of the instrument body 9. That is, the length 1 is set in the longitudinal direction substantially at the center of the instrument body 9.
Forming a pair of slits 21 of about 50 to 200 mm,
A mounting screw 22 is slidably inserted into the slit 21 so as not to come off. Specifically, the mounting screw 22 is inserted into the ballast housing box 20 and the slit 21 and tightened to the nut means, or a screw hole is formed in the ballast housing box 20 so that the mounting screw 22 is threaded and the tip thereof is inserted into the slit 21. A retaining piece is provided at the tip of a mounting screw 22 that passes through the lower side of the slit 21. The stabilizer housing box 20 is mounted by the mounting screws 22. Thereby, the ballast housing box 20 can also avoid the channel 1, and the ballast housing box 20 can be mounted on the upper surface of the instrument body 9.

According to this lighting fixture, when the fixture main body 9 is inserted from the floor side between the pair of T bars 2 and 3, the locking fixture 17 is provided.
Is pressed against the side surfaces of the T-bars 2 and 3 and retreats against the spring 19, and when it moves upward, returns and returns to the upper and side surfaces of the upper end portions of the T-bars 2 and 3 to contact the upper and side surfaces.
b is locked. Therefore, unlike the first embodiment, the installation of the equipment 4 can be performed even after the ceiling plate 13 is inserted.

In addition, the same reference numerals are given to the parts common to the first embodiment, and the configuration, operation and effect are the same as those of the first embodiment. A third embodiment of the present invention will be described with reference to FIGS. That is, the lighting equipment, which is the equipment 4, has the upper end of the screw rod 25 welded to the center of the fixture 14 and hangs down, and the slit 12 in the short (width) direction of the fixture body 9 through which the screw rod 25 is passed. Are formed in the longitudinal direction of the instrument body 9 at intervals of, for example, 50 to 60 mm, and the threaded rod 25 passing through one of the slits 12 is formed.
And a wing nut 26 is screwed and fixed. The locking members 5a and 5b are integrally formed at both ends of the mounting member 14, and their tip ends hang down downward from a portion locked to the upper ends of the T-bars 2 and 3, and their tips are folded upward. Thus, the upper ends of the T-bars 2 and 3 can be locked to the neck below the head. Further, a plurality of slits 12 formed in the width direction of the instrument body 9 are opened in the longitudinal direction of the instrument body 9. Avoid the problem.

FIG. 9 shows a procedure for mounting the equipment. FIG.
(A), the locking tool 5a of the mounting tool 14 is shifted along the slit 12 in a direction of inserting one side of the tool main body 9 between the T-bars 2 and 3. At this time, the locking tool 5b retreats toward the center of the instrument body 9 in the width direction. The locking tool 5a is locked to the upper end of the T-bar 3, and the instrument body 9 is then moved to a pair of facing T-bars.
Put between bars 2 and 3. After being set, the locking device 5b is set to T
Locking to the upper end of the bar 2, the wing nut 26 is tightened to hold the instrument body 9 floating from the lower horizontal piece 8 of the T-bar 2, 3.

Finally, the V-shaped cover or Fuji-shaped reflector 10 and the fluorescent lamp 11 are mounted, and the process is completed. A fourth embodiment of the present invention will be described with reference to FIGS. That is, this equipment mounting structure is applied to a conventional ceiling. In the first embodiment, the T bars 2 and 3 are suspended from the channel 1 via the height adjustment mechanism 30. This height adjusting mechanism 30 bends a flat plate into an inverted U shape,
And a notch 3 near the center so that each piece forms an inverted U-shape.
0a and a locking piece 32 having the lower ends at both ends folded inwardly, and a hanging metal fitting 31 having a screw hole 33 at the center of the upper end, and the tip is threaded through the screw hole 33. And a thumbscrew 34. Notch 3 of a pair of hanging brackets 31
0a is hung on the channel 1, the lower end of each hanging bracket 31 is straddled over the upper end of the T-bar 2, 3, and the locking piece 32 is locked on the neck under the head of the T-bar 2, 3. The T-bars 2 and 3 are suspended from the channel 1 with the tip of the screw 34 applied to the upper end of the channel 1. Turn the thumbscrew 34 to turn the thumbscrew 3
Adjusting the screwing amount of channel 4 and channel 1 and T-bar 2
3 can be adjusted. In this case, the ceiling member 13 is engaged with the lower end inclined pieces 8a of the T bars 2 and 3, a predetermined M bar 35 is placed on the ceiling member 13, and the M bar 35 is pushed up until the M bar 35 comes into close contact with the lower surface of the channel 1. Thus, the total height Ha, which is the distance between the lower end inclined pieces 8a of the T bars 2 and 3 and the lower surface of the channel 1, is determined.

Other features are the same as those of the first embodiment.
The equipment 4 is mounted between the T-bars 2 and 3. When the fixture mounting structure as in the first embodiment is applied to a conventional ceiling, a problem unique to the conventional ceiling occurs. That is,
The conventional ceiling has several kinds of heights of the M bar 35 attached to the channel 1, and the ceiling material 13 is also attached by one sheet or two sheets, so that the total height Ha changes considerably. Therefore, in order to cope with the change of the total height Ha, channel 1 and T bar 2
It is necessary to make the height of the lower end inclined piece 8a variable. For this reason, if a height adjusting mechanism 30 using a long screw mechanism having a head as a thumbscrew 34 is added to a hanger for fastening the channel 1 to the T-bars 2 and 3, the range in which the thumbscrew 34 can be screwed is increased. If the length is equal to or greater than the difference between the maximum value and the minimum value of the total height Ha, the ceiling material 13 is located between the lower end inclined piece 8a and the lower end of the thumbscrew 34 with respect to all the ceilings from the maximum to the minimum of the total height Ha.
And the M bar 35 can be fastened and fixed. The total height Ha is minimum because the channel 1 is in contact with the upper ends of the T-bars 2 and 3, and the ceiling material 13 has a minimum thickness of one sheet.
This is the case when the bar 35 has the minimum height.

A fifth embodiment of the present invention will be described with reference to FIG. That is, this device mounting structure is different from the fourth embodiment in that the height of the M bar 35 is large, the number of the ceiling members 13 is two, and the lower surface of the channel 1 and the T bar A triangular wedge-shaped spacer 36 whose bottom and oblique sides are directed is inserted between the upper ends of the two or three. The distance between the lower surface of the channel 1 and the lower end inclined pieces 8a of the T-bars 2 and 3 is such that the height of the M-bar 35 is high and the number of the ceiling members 13 is plural, so that the total height Hb is set to the maximum value or its value Get closer.

Therefore, in this embodiment, the wedge-shaped spacer 36 is moved or the wedge-shaped spacer 36 is removed with respect to the difference between the minimum value of the conventional ceiling, for example, Ha and the maximum value, for example, Hb. Can accommodate all conventional ceilings. In the embodiment, the locking members 5 at both ends of the mounting member 14 are configured to be able to retreat, but only one of the locking members 5 may be configured to be able to retreat.

[0026]

According to the lighting apparatus of the first aspect, the fixture is retracted by moving one end of the fixture toward the center in the width direction of the fixture main body, and inserting the fixture main body between the T-bars from the floor side. The other end of T
Locking the upper end of the bar, one end of the retracted fixture is advanced again to the outside of the instrument body and latched to the upper end of the T-bar, so that the fixture does not interfere with the T-bar. The lighting fixture can be mounted between a pair of T-bars, and the height of the fixture body is lower than the height from the bottom horizontal piece of the T-bar to the lower end of the horizontal member, and the fixture can be moved in the longitudinal direction. Therefore, it can be attached even under the horizontal member, and there is no limitation due to the interval between the horizontal members unlike the related art. In addition, 900m of general conventional building structure at the time of remodeling
Since m-pitch insert bolts can be reused, noise reduction by shortening the construction period for remodeling and newly inserting insert bolts can be achieved. Furthermore, since the mounting position of the lighting equipment can be set arbitrarily, even if the mounting pitch of the insert bolts supporting the horizontal member is set arbitrarily, the lighting equipment set between the pair of parallel T-bars can be set. The line can be easily secured.

According to the device mounting structure of the second aspect, the same effect as that of the first aspect is obtained. According to the device mounting structure of the third aspect, in addition to the same effects as those of the first aspect, the T-bar can be suspended on the horizontal member regardless of the specification of the conventional ceiling. Become.

[Brief description of the drawings]

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

FIG. 2 is an explanatory diagram for explaining a procedure for installing equipment.

FIG. 3 is a partial perspective view of a system ceiling.

FIG. 4 is a partial cross-sectional view of the second embodiment.

FIG. 5 is a partially enlarged view of the locking tool.

FIG. 6 is a partial perspective view of the installation state of the equipment.

FIG. 7 is a partial perspective view showing an attached state of the ballast.

FIG. 8 is a partial perspective view of the second embodiment.

FIG. 9 is a cross-sectional view illustrating a construction state of the equipment.

FIG. 10 is a partial perspective view of the third embodiment.

11A and 11B show the height adjusting mechanism, wherein FIG. 11A is a front view and FIG. 11B is a cross-sectional view in a used state.

FIG. 12 shows a height adjusting mechanism according to a fourth embodiment,
(A) is a front view thereof, and (b) is a sectional view of a used state.

FIG. 13 is a partial perspective view of a conventional example of a state of installation of equipment on a system ceiling.

FIG. 14 is a sectional view thereof.

FIG. 15 is a cross-sectional view of a conventional example of a state of installation of existing ceiling equipment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Channel 2, 3 T bar 4 Equipment 5 Locking tool 5a, 5b Locking tool 6 Insert bolt 8 Lower horizontal piece 8a Lower inclined piece 9 Instrument body 12 Slit 14 Mounting tool 30 Height adjustment mechanism

Continued on the front page (72) Inventor Masahiro Inoue 1048 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Inventor Yasutaka Ono 1048 Kadoma Kadoma, Kadoma City, Osaka Matsushita Electric Works

Claims (3)

[Claims] 1. A lighting fixture attached between a pair of T-bars suspended on a horizontal member, wherein the device main body is lower than a height from a lower horizontal piece of the T-bar to a lower end of the horizontal member. A fixture that is movably mounted in the longitudinal direction of the upper surface of the instrument body and has both ends locked to the upper end of the T-bar such that the lower end of the instrument body is positioned above the lower horizontal piece; A lighting fixture, wherein at least one end of the fixture is configured to be retractable toward the center in the width direction of the fixture main body. 2. A ceiling having a horizontal member suspended from a ceiling frame, a ceiling having a pair of T-bars suspended from the horizontal member, and a lower end of the horizontal member from a lower horizontal piece of the T-bar. And has a width smaller than the interval between the pair of T-bars, and is mounted movably in the longitudinal direction of the upper surface of the device main body, and the lower end of the device main body is the lower end horizontal piece. A device having both ends locked to the upper end of the T-bar so as to be located at a higher position, at least one end of which is configured to be able to retreat to the center in the width direction of the device main body; Equipment mounting structure with. 3. The equipment mounting structure according to claim 2, wherein said T-bar is suspended from said horizontal member via a height adjusting mechanism.