JPH0541018U - Construction lighting - Google Patents

Abstract

(57) [Abstract] [Purpose] To simplify the installation of the construction lighting fixture 13 to the ceiling. [Structure] First, the fastening nut 12 is mounted on the mounting bolt 10. Next, from below the mounting bolt 10, the mounting hole 9 of the instrument body 2 formed to have a diameter larger than that of the fastening nut 12 is inserted to the top of the nut 12, and then slidable around the mounting hole 9 of the instrument body 2. The instrument mounting plate 14 disposed on the mounting plate 14 is slid, and the mounting bolt 16 is called into the engaging groove 16 formed in the mounting plate 14 to temporarily hold the instrument main body 2 on the instrument mounting plate 14, and finally the nut 12 is attached. To conclude. [Effect] It is not necessary to tighten the screws while supporting the heavy lighting fixture 13, and the lighting fixture 13 can be easily attached.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention provides a mounting hole on the top plate of the instrument body, inserts this mounting hole into a mounting bolt suspended from a beam on the ceiling surface, and tightens a fastening nut from the lower surface side of the top plate to suspend it. The present invention relates to the improvement of the mounting structure of the construction lighting device.

[0002]

[Prior Art]

 As shown in FIGS. 4 and 5, for example, the lighting fixture 1 for this type of construction accommodates the lighting circuit component 3 in the fixture body 2 formed in the shape of a rectangular box made of an iron plate, and at the bottom of the fixture body 2. It has a structure in which a straight tube fluorescent lamp 5 is mounted between a pair of mounted lamp sockets 4 and 4. Since it is straight and has a bright and excellent light distribution, it is often used as a building or office lighting.

By the way, in order to mount the construction lighting fixture 1 on the ceiling surface 6, the mounting holes 9 provided in the top plate 8 of the fixture body 2 are planted at predetermined intervals in the beams 7 of the ceiling 6 or the like. After being inserted into the mounting bolt 10, the washer 11 is inserted from the lower surface side of the top plate 8 and the fastening nut 12 is screwed to be fastened and fixed.

[0004]

[Problems to be solved by the device]

 However, the mounting work of the construction lighting fixture 1 for fastening and fixing the fixture main body 2 with the nut 12 in this way is a difficult work as described below. First, the two mounting bolts 10 with a constant pitch are picked up by the mounting holes 9 with a constant pitch provided on the top plate 8 of the instrument body 2 and are inserted therethrough. However, if it is misaligned, it is difficult to pick it up, and during this time, the worker needs to support the heavy lighting fixture 1 at a high place, which puts a considerable burden on the worker. Further, in the case of a ceiling-embedded luminaire, when the nut is tightened, the luminaire 1 may be pulled by the mounting bolt 10 and the nut 12, and the luminaire main body 2 may be bent.

Therefore, the present invention has been made in view of the above, and even if the pitch of the mounting bolt 10 is slightly deviated, it can be easily picked up by the mounting hole 9 and the bending of the instrument body 2 can be dealt with. The purpose is to obtain a structure for mounting the possible construction lighting fixture 1 to the ceiling surface.

[0006]

[Means for Solving the Problems]

 Therefore, according to the present invention, in the construction lighting fixture in which the mounting holes provided in the top plate of the fixture body are inserted into the mounting bolts and the nuts are fixed from the bottom side of the top plate, the bottom face of the top plate of the fixture body is fixed. An instrument mounting plate having an engaging groove into which a mounting bolt is inserted from the side is slidably arranged on the periphery of the mounting hole. Further, the device mounting plate is slidably arranged by selecting two mounting holes in a slide groove provided in the vicinity of the two mounting holes arranged corresponding to the pitch intervals of the mounting bolts. .. Furthermore, if necessary, the instrument mounting plate has three-dimensionally arranged wing portions that come into contact with the side plates of the instrument body on both sides. Further, in the construction lighting device of the present invention, the mounting hole has a diameter larger than the outer shape of the fastening nut, and the device mounting plate is inserted between the nut and the top plate of the device body.

[0007]

[Action]

 According to the construction structure of the construction luminaire having the above structure, the mounting hole has a diameter larger than the outer shape of the fastening nut, and the fastening nut is preliminarily mounted on the mounting bolt when the luminaire is mounted. Then, insert the mounting bolt with the fastening nut into the mounting hole of the instrument body from below to the upper side of the fastening nut, and then slide the instrument mounting plate to insert the mounting bolt into the engagement groove from the side. The device body is temporarily held on the fastening nut via the device mounting plate. After that, the fastening nut may be screwed and fastened. Further, when the wing portions that come into contact with the side plates of the instrument body are arranged on both sides of the instrument mounting plate, both sides of the instrument body are supported by the instrument mounting plate and can be used as a reinforcing metal fitting.

[0008]

【Example】

 An 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 construction lighting fixture 13 according to the present invention. As with the conventional construction lighting fixture 1, a top plate 8 of an iron plate rectangular box-shaped fixture main body 2 includes: A pair of mounting holes 9 and 9 are provided at positions corresponding to the mounting bolts 10. The mounting holes 9 and 9 correspond to two types of arrangement pitches of the mounting bolts 10. Normally, as shown in FIG. 2, two kinds of predetermined pitches A and B are provided, and two pieces 9A and 9B are provided. It is designed to be arranged at both ends of the device.

This construction lighting fixture 13 differs from the above-mentioned conventional construction lighting fixture 1 only in the structure of the attachment portion of the fixture main body 2 to the mounting bolt 10, and the lower surface side of the top plate 8 of the fixture main body 2 is different. The instrument mounting plate 14 is slidably arranged on the periphery of the mounting hole 9, and the mounting hole 9 has a diameter larger than the outer shape of the fastening nut 12, and the other structure is the same. The same functional parts are designated by the same reference numerals, and the description thereof is omitted for simplicity.

The instrument mounting plate 14 is a rectangular strip made of an iron plate, and is engaged with the two slide grooves 15 provided between the two mounting holes 9A and 9B of the top plate 8 and provided on the body portion. The projection 14A is slidably locked. Engaging grooves 16A and 16B into which the mounting bolt 10 is inserted from the side are provided on opposite sides facing the mounting holes 9A and 9B, respectively. Further, the openings of these engaging grooves 16A, 16B are formed in an expanded shape, and when the mounting plate 14 is slid to the mounting bolt 10 side, even if the mounting bolt 10 is slightly displaced, Configured for easy picking up.

FIG. 3 is a drawing for explaining a mounting process of the construction lighting fixture 13. First, prior to mounting the fixture 13, a fastening nut 12 is mounted on a mounting bolt 10 at a predetermined position. .. Next, the instrument main body 2 is lifted from below the mounting bolt 10 having the fastening nut 12 mounted thereon and inserted into the mounting bolt 10, and a mounting hole 9 having a diameter larger than that of the fastening nut 12 is provided. After being positioned above 12, the instrument mounting plate 14 is slid onto the fastening nut 12. Then, the mounting bolt 10 is inserted from the side and is called into the engagement groove 16 of the instrument mounting plate 14, and the instrument body 2 is temporarily held on the fastening nut 12 via the instrument mounting plate 14. After that, the fastening nut 11 may be screwed and fastened.

The instrument mounting plate 14 is formed in a flat plate shape along the top plate of the instrument body 2, but the present invention is not limited to this, and for example, both edges are extended to form a side plate of the instrument body 2. By arranging the wings so as to contact with the parts, the strength of both side plates of the fixture body 2 is obtained, and the fixture body 2 may be bent even when the lighting fixture 13 is pulled by the nut 12 when the nut is tightened. It can also be used as a reinforcing metal fitting. Further, the engaging grooves 16 of the device mounting plate 14 are formed on both the left and right sides, but it is also possible to configure the engaging grooves 16 only on one side so that the mounting grooves 9A and 9B can be mounted in different directions when used. ..

[0013]

[Effect of the device]

 As described above, according to the present invention, the device mounting plate is slidably arranged around the mounting hole on the lower surface of the device body, and the mounting bolt is picked up in the engaging groove of the device mounting plate. It is extremely easy to fasten and fasten, and it is possible to easily install the construction lighting fixture on the ceiling surface. Therefore, the worker is less likely to support heavy lighting equipment at a high place, and the burden on the worker is reduced. Also, since the device mounting plate is configured so that the sliding direction can be changed, it is possible to immediately accommodate bolts of two different mounting pitches during mounting work. In addition, if the fixture plate has the function of a reinforcing metal fitting, the function of the lighting fixture can be improved without increasing the product cost.

[Brief description of drawings]

FIG. 1 is a sectional view showing a mounting structure of a construction lighting device of 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 construction lighting fixture of FIG.

FIG. 4 is a cross-sectional view showing a conventional mounting structure for a construction lighting fixture.

5 is a side sectional view showing a mounting structure of the construction lighting device of FIG.

[Explanation of symbols]

 2 Fixture body 8 Top plate 9 Mounting hole 10 Mounting bolt 12 Fastening nut 13 Lighting fixture for construction 14 Fixture mounting plate 15 Slide groove for fixing fixture mounting plate 16 Engagement groove for fixing bolt

Claims (4)

[Scope of utility model registration request] 1. A lighting fixture for construction in which a mounting bolt is inserted into a mounting hole provided in a top plate of a fixture main body, and a nut is fixed from a lower surface side of the top plate. A lighting fixture for construction, wherein a fixture mounting plate having an engagement groove having a width smaller than at least the nut diameter is slidably disposed on a side facing the mounting bolt. 2. The two mounting holes are arranged at two kinds of pitch intervals, and the instrument mounting plate is slidably locked in a slide groove arranged in the vicinity of the two mounting holes. The construction lighting device according to claim 1, wherein the two mounting holes are selected. 3. The ceiling-hung type lighting fixture according to claim 1, wherein the fixture mounting plate has wing portions on both sides which come into contact with the side plates of the fixture body, and also has a function as a reinforcing metal fitting of the fixture body. 4. The mounting hole has a diameter larger than the outer shape of the nut,
The luminaire for construction according to claim 1, wherein the fixture mounting plate is inserted between the nut and the top plate of the fixture body.