JP2566395Y2 - Mounting bolt fixed lighting fixture - Google Patents

Description

[Detailed description of the invention]

[0001]

This invention is based on the idea that a mounting hole is provided in a top plate of an instrument body, the mounting hole is inserted into a mounting bolt suspended from a ceiling surface or the like, and a fastening nut is provided from a lower surface of the top plate. The present invention relates to an improvement in a mounting bolt-fixed lighting fixture that is fastened by a bolt and suspended from a ceiling or the like.

[0002]

2. Description of the Related Art This type of fixing bolt-fixed lighting fixture 1 is disclosed.
As shown in FIG. 6 and FIG. 7, for example, the lighting circuit components 3, 3 are housed in an appliance body 2 formed in the shape of a rectangular box made of iron plate, and a pair of lamps which are exposed and mounted on both lower surfaces are mounted. It has a structure in which a straight tube-type fluorescent lamp 5 is mounted between the sockets 4 and 4. Since it is straight, bright and excellent in light distribution, it is often used as a building or office lighting.

[0003] The mounting bolt-fixed lighting fixture 1 is mounted on the ceiling surface 6 by mounting mounting holes 8 provided on a top plate 7 of the fixture main body 2 at predetermined intervals in a ceiling or a beam. After passing through the mounting bolts 9, the washer 10 is passed through the lower surface of the top plate 7, and the fastening nut 11 is screwed and fastened and fixed.

[0004]

However, as described above, the mounting work of the fixing fixture 1 to which the fixture body 2 is fastened and fixed by the nut 11 to the ceiling surface 6 is as follows.
It was a difficult task as follows. First, two mounting bolts 9 having a constant pitch are inserted into the mounting holes 8 having a constant pitch arranged in the fixture main body 2. If the pitches of the mounting bolts 9 are different , the mounting of the lighting fixture 1 is not performed. difficult, operator mount heavy luminaire 1 at altitude bolt 9
It had to be supported until it was fixed to the work, which put a considerable burden on the workers. Further, in this case, when the nut 11 is tightened, the lighting fixture 1 is pulled by the mounting bolt 9 and the nut 11, and the fixture main body 2 may be bent, so that a reinforcing bracket is required.

Accordingly, the present invention has been made in view of the above, even with different pitch of the mounting bolts 9, irradiation
It is an object of the present invention to obtain a mounting structure for fixing the lighting fixture 1 to a ceiling surface, which can temporarily hold the lighting fixture 1 and can cope with bending of the fixture main body 2.

[0006]

According to the present invention, a mounting hole provided on a top plate of an instrument body is suspended from a ceiling or the like.
The lighting fixture is inserted into the mounting bolt, and is fixed to the mounting bolt by fixing the nut to the mounting bolt with a nut from the lower side of the top plate . The lighting fixture can rotate around the periphery of the mounting hole on the lower surface of the top plate of the fixture body. Are formed with a plurality of engagement grooves for engaging with the mounting bolts on the instrument mounting plate provided in the apparatus . Further, both sides of the instrument mounting plate are bent, and a wing portion which comes into contact with the side plate of the instrument main body is formed three-dimensionally. The mounting bolt fixation luminaire of the present invention in advance nut to the mounting bolts
Attach the top plate of the instrument body from below the nut.
Insert the mounting hole to the position above the nut,
The fixture mounting plate is inserted between the top plates of the fixture body and supported.
is there.

[0007]

According to the mounting structure having the above-described structure, when mounting the lighting fixture, the pitch of the mounting bolts is different.
Also, temporary holding of heavy lighting equipment can be done with one fixture mounting plate.
You . Further, when the wings which contact the side plate of the instrument main body are three-dimensionally arranged on both sides of the instrument mounting plate, both sides of the instrument main body are supported by the instrument mounting plate, and can be used as reinforcing metal fittings.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a mounting structure of a mounting bolt-fixed lighting device 12 according to the present invention. Like the conventional mounting bolt-fixed lighting device 1, the top plate of a rectangular box-shaped device main body 2 made of an iron plate. At both ends of 7, mounting bolts 9, 9
A pair of mounting holes 8, 8 are provided at positions corresponding to. In addition, these mounting holes 8 and 8 are usually provided with two types 8A and 8B at two ends of the tool at two predetermined pitches A and B, respectively, as shown in FIG. It is standardized as follows.

[0009] The mounting bolt-fixed lighting fixture 12 differs from the conventional mounting bolt-fixed lighting fixture 1 only in the structure of the mounting portion of the fixture main body 2 to the mounting bolt 9. 7 is attached to an instrument mounting plate 13 that is rotatably disposed on the periphery of the mounting hole 8 on the lower surface side of
A plurality of engaging grooves for engaging with the bolts 9 , and abutting the side plates of the instrument body 2 on both sides of the instrument mounting plate 13.
Wings (not shown) are three-dimensionally arranged , and the other structures are the same. The same functional components are denoted by the same reference numerals, and the description thereof will be omitted for simplicity.

FIG. 2 is a view showing an arrangement structure of the instrument mounting plate 13. Two types of pitches A and B are provided on one end of the top plate 7.
Two mounting holes 8A and 8B are provided at intervals. The right mounting hole 8B is arranged in a knockout state so as to be used as appropriate. The device mounting plate 13 is a rectangular strip made of an iron plate, and has two mounting holes 8 of the top plate 7.
A pivot 14 is provided between A and 8B, and is attached to be rotatable left and right along the lower surface of the top plate 7. Engagement grooves 15A, 15B into which the mounting bolts 9 are inserted from the sides are provided on opposite sides of the instrument mounting plate 13 facing the mounting holes 8A, 8B. The engagement grooves 15A and 15B are set on a rotation locus such that the mounting bolt 9 is inserted from the side when the mounting plate 13 is rotated left and right around the support shaft 14. Further, the openings of the engagement grooves 15A and 15B are formed in an expanded shape, so that when the mounting plate 13 is rotated toward the mounting bolt 9, even if the mounting bolt 9 is slightly displaced, this can be easily performed. It is configured to pick up.

FIG. 3 is a view for explaining a process of mounting the lighting fixture 12 to which the fixing bolt is fixed. First, a fastening nut 11 is attached to a mounting bolt 9 at a predetermined position prior to the mounting of the lighting apparatus 12. . Next, the instrument body 2 is lifted up from below the mounting bolt 9 on which the fastening nut 11 is mounted, and is inserted through the mounting bolt 9. After that, the instrument mounting plate 13 is rotated around the support shaft 14 to the left. Then, the mounting bolt 9 is inserted from the side, and the engaging groove 1 of the instrument mounting plate 13 is inserted.
5A, the instrument body 2 is temporarily held on the fastening nut 11 via the instrument mounting plate 13. Then, the fastening nut 11 may be screwed and fastened.

FIGS. 4 and 5 show another embodiment of the present invention, in which the appliance mounting plate 13 of FIG. 2 is constituted by a cross-shaped appliance mounting plate 16 and an arc-shaped appliance mounting plate 17, respectively. is there. These instrument mounting plates 16 and 17 also
The lower surface of the top plate 7 is mounted between the mounting holes 8A and 8B by a support shaft 14 so as to be rotatable left and right.
On the opposite side facing B, engaging grooves 15A and 15B into which the mounting bolts 9 are inserted from the side are disposed, respectively.
4, the mounting bolt 9 is engaged with the engagement groove 15.
A and 15B are configured to be easily picked up.

Even when the cross-shaped instrument mounting plate 16 and the arc-shaped instrument mounting plate 17 are used, the mounting can be easily performed similarly to the rectangular strip-shaped instrument mounting plate 13. In addition, the above-mentioned instrument mounting plates 13, 16, 17 are all formed in a flat plate shape along the top plate of the instrument main body 2, but the present invention is not limited to this, and for example, by extending both sides. When the wings are extended and formed three-dimensionally so as to be in contact with the side plate portions of the fixture body 2, the strength of the fixture body 2 is obtained.
Even if the device main body 2 is pulled by the nut 11, the device main body 2 does not bend, and the reinforcing metal fitting can also be used.

[0014]

[Effects of the Invention] As described above, the present invention provides a device mounting plate that is rotatably disposed on the periphery of the mounting hole on the lower surface of the device body.
The engaging groove of the mounting bolt from the plural number, the mounting board
Heavy lighting fixtures, even if the pitch of the
Since the fixture can be temporarily held by one fixture mounting plate , the fixture of the fixture main body by the nut is extremely easy, and the installation work of the lighting fixture to which the fixing bolts are fixed to the ceiling can be simplified. Therefore, the workers have different mounting bolt pitches.
Even so, it is less likely to support heavy lighting equipment at a high place, and the burden on the operator is reduced. Also, the instrument mounting plate
The wings that come into contact with the side plate of the lighting fixture body on both sides of the
It was installed to prevent bending of the lighting equipment,
Adjustment work when installing the lighting fixture is reduced, and the burden on the operator is reduced.
It is reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a mounting structure of a lighting fixture with a mounting bolt according to the present invention.

FIG. 2 is a partial plan view showing the arrangement structure of the instrument mounting plate of FIG.

FIG. 3 is a cross-sectional view for explaining a mounting process of the mounting bolt-fixed lighting fixture of FIG. 1;

FIG. 4 is a partial plan view showing an arrangement structure of an instrument mounting plate according to another embodiment of the present invention.

FIG. 5 is a partial plan view showing an arrangement structure of an instrument mounting plate according to still another embodiment of the present invention.

FIG. 6 is a cross-sectional view showing a mounting structure of a conventional lighting fixture to which mounting bolts are fixed.

FIG. 7 is a side sectional view showing a mounting structure of the lighting fixture to which the mounting bolt is fixed in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 2 Device main body 7 Top plate 8 Mounting hole 9 Mounting bolt 11 Fastening nut 12 Mounting bolt fixed lighting fixture 13, 16, 17 Tool mounting plate 14 Support shaft 15A, 15B Engagement groove

Claims (3)

(57) [Scope of request for utility model registration] 1. A lighting device in which a mounting hole provided on a top plate of an instrument body is inserted into a mounting bolt suspended from a ceiling or the like, and is fixed to a mounting bolt by fastening a nut from a lower surface side of the top plate. In the lighting device, the lighting device is a lighting device that is rotatably disposed on a periphery of a mounting hole on a lower surface of a top plate of the lighting device body.
A mounting bolt-fixed luminaire , wherein a plurality of engagement grooves for engaging with mounting bolts are formed in a mounting plate . 2. The instrument mounting plate is bent on both sides, so that the instrument
The wing part which contacts with a side plate of a body was formed three-dimensionally.
The mounting bolt fixed lighting fixture according to the above. 3. A nut is previously mounted on the mounting bolt, and
From the bottom of the nut of
Between the nut and the top plate of the instrument body.
2. The mounting bolt according to claim 1, wherein an instrument mounting plate is interposed in the mounting bolt.
Fixed lighting equipment.