How to temporarily install lighting fixtures

Abstract

To provide a temporary installation method capable of temporarily installing a lighting fixture of a ceiling continuously during a construction period, in a ceiling renewal construction.SOLUTION: A temporary installation method for a lighting fixture during ceiling renewal construction temporarily installing an existing lighting fixture, in which a base or a reflector panel is installed at a position of a ceiling surface of a ceiling board using a hanging bolt, at a position lower than the ceiling surface. Typically, the temporary installation method comprises: preparing a fully threaded bolt, a hanging bolt and a long nut to be screwed onto the fully threaded bolt; removing a lighting fixture from the hanging bolt; connecting a base end side of the fully threaded bolt to a tip of the hanging bolt using the long nut; and temporarily installing the lighting fixture on a tip side of the fully threaded bolt.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present disclosure relates to a method for temporarily installing a lighting fixture, and more particularly to a method for temporarily installing a lighting fixture on a ceiling in ceiling renovation work. [Background technology]

[0002] Patent Document 1 discloses a technology related to a lighting fixture installed on a ceiling. In this technology, the fixture body of a recessed lighting fixture, which is installed in a recessed opening in a ceiling panel, is attached to a pair of suspension bolts installed in a structure on the facility side, i.e., the floor slab on the upper floor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-82513 Summary of the Invention [Problem to be solved by the invention]

[0004] In renovations of existing office buildings, ceiling renovation work is sometimes carried out exclusively on weekends and other holidays when the office is not in operation, replacing or renovating the ceiling while the building is still occupied. Before the construction work on the existing ceiling, electrical work, such as the removal of lighting fixtures, must be performed as part of the facility-side work. This is because professional electricians must safely install the lighting fixtures. However, if the ceiling renovation work is not completed in a single weekend but is carried out over multiple weeks, the lighting fixtures must be temporarily restored at the end of each holiday in preparation for the office's operating days, i.e., weekdays. Even if the ceiling panels are removed and only the lightweight concrete base is left, as long as it is cleaned, the room can still be used as an occupied space as long as there is lighting. However, ceiling renovation is not a facility-side work, but rather a construction-side job performed primarily by carpenters, interior decorators, and painters, and electricians must work every weekend solely to temporarily restore the lighting fixtures. Thus, installing and removing lighting fixtures multiple times during the ceiling renovation work period increases manpower requirements and is inefficient.

[0005] The present disclosure has been made in consideration of the above-mentioned problems, and aims to provide a temporary installation method that enables continuous temporary installation of ceiling lighting fixtures during ceiling renovation work. [Means for solving the problem]

[0006] To solve the above problems, the first disclosure is applied to a temporary installation method for temporarily installing an existing lighting fixture, which has a base or a reflector parting installed at the ceiling surface of a ceiling board, at a position lower than the ceiling surface using a hanging bolt. The temporary installation method includes a preparation step of preparing a fully threaded bolt, a hanging bolt, and a long nut to be threaded onto the fully threaded bolt, a removal step of removing the lighting fixture from the hanging bolt, a connection step of connecting the base end of the fully threaded bolt to the tip end of the hanging bolt using the long nut, and a temporary installation step of temporarily installing the lighting fixture on the tip end of the fully threaded bolt.

[0007] The second disclosure further includes the following features in addition to the first disclosure. The fully threaded bolt has the same diameter and pitch as the suspension bolt.

[0008] The third disclosure is the first or second disclosure further including the following features. The length of the fully threaded bolt is such that the distance from the base of the temporarily installed lighting fixture or the edge of the reflector to the ceiling surface is 200 mm or more and 400 mm or less.

[0009] The fourth disclosure is any one of the first to third disclosures, further comprising the following features: The length of the fully threaded bolt is such that the distance from the bottom of the temporarily installed lighting fixture to the floor surface is at least 2 m.

[0010] The fifth disclosure is any one of the first to fourth disclosures, further comprising the following features: The temporary installation method for lighting fixtures is as follows: After the ceiling board installation is complete, the temporary lighting fixtures are removed from the fully threaded bolts. removing the fully threaded bolt and the long nut from the hanging bolt; installing the new lighting fixture using the hanger bolts; Further includes: [Effects of the Invention]

[0011] According to the method for temporarily installing a lighting fixture disclosed herein, ceiling work can be carried out during the construction period and office work can be carried out during the office operation period while the lighting fixture is continuously temporarily installed. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a perspective view of an example of a lighting device applied to an embodiment, as viewed from the office floor side. [Figure 2] FIG. 2 is a partial cross-sectional view of the lighting device taken along the −Y direction in the drawing. [Figure 3] 2 is a diagram for explaining the configuration of a temporary installation device 4. FIG. [Figure 4] FIG. 10 is a perspective view showing an example in which the temporary installation device 4 is applied to a lighting device. [Figure 5] 10 is a partial cross-sectional view showing a state in which a lighting device is temporarily installed using a temporary installation device 4, as viewed along the −Y direction in the figure. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. However, when the number, quantity, amount, range, etc. of each element is mentioned in the embodiments described below, this disclosure is not limited to the mentioned numbers unless otherwise specified or clearly specified in principle. Furthermore, the structures, etc. described in the embodiments described below are not necessarily essential to this disclosure unless otherwise specified or clearly specified in principle.

[0014] Embodiment 1. Configuration of the lighting device applied to the embodiment FIG. 1 is a perspective view of an example of a lighting device applied to an embodiment, seen from the office floor side. FIG. 2 is a partial cross-sectional view of the lighting device taken along the -Y direction in the figure. FIG. 1 shows a partial perspective view of the internal structure of the ceiling of an existing office building. The lighting device includes multiple existing lighting fixtures 10. The lighting fixtures 10 are ceiling-mounted fluorescent or LED lights. For example, recessed lighting fixtures are installed in rectangular openings 22 in ceiling boards 20 of the existing office building by joining the lighting fixture base or reflector trim (the reflector trim in the case of recessed lighting fixtures) to the edge of the opening. For example, V-shaped lighting fixtures are installed by joining the base trim to a predetermined position on the ceiling board. Each lighting fixture 10 is supported by a pair of suspension bolts 12 from the building's structural body, such as the floor slab of the upper floor. The pair of suspension bolts 12 are fully threaded bolts (also called threaded bolts) for suspending the lighting fixtures 10 from the building's ceiling slab 14. The base ends of a pair of hanging bolts 12 are fixed to ceiling slab 14, and the tip ends are fixed to lighting fixture 10. While FIG. 2 illustrates lighting fixture 10 embedded in ceiling board 20 (embedded lighting fixture), it may be a V-shaped lighting fixture or a single fixture that is installed on the ceiling surface of ceiling board 20. A plurality of such lighting fixtures 10 are installed at intervals on an office floor of an existing office building. In the figure, the X direction indicates the longitudinal direction of lighting fixture 10, the Y direction indicates the lateral direction of lighting fixture 10, and the Z direction indicates the height direction.

[0015] 2. Configuration of the temporary installation device according to the embodiment Ceiling renovation work may be carried out to repair and replace the ceiling boards 20 on the office floors of existing office buildings. Ceiling renovation work is carried out on specific days, such as weekends, when the office floors are closed. In ceiling renovation work, electrical work is first carried out to temporarily remove electrical equipment such as lighting fixtures, and then construction work to renovate the ceiling is carried out. However, if ceiling renovation work is carried out over multiple weeks, it is necessary to temporarily restore lighting fixtures that can achieve the specified illuminance required to allow work on the office floors during the weekday period leading up to the next weekend.

[0016] Here, consider the case where electrical work is carried out every weekend, with the electrical equipment removed at the beginning of the weekend during which construction work is carried out and temporarily restored at the end of the weekend. For example, if the construction period for ceiling renovation work is two months, a total of 16 days of electrical work will be required to remove and temporarily restore the electrical equipment.

[0017] Therefore, the temporary installation device 4 of this embodiment is designed to temporarily install a lighting fixture 10 in a location that will not interfere with ceiling construction work. A location that will not interfere with ceiling construction work is, for example, a location where the vertical distance from the ceiling surface of the ceiling board 20 is 200 mm to 300 mm. A distance of 200 mm or more between the ceiling board 20 and the lighting fixture base or the reflector edge allows for sufficient vertical distance between the ceiling board 20 and the newly installed lightweight framing support or new ceiling board, thereby not interfering with the construction workers' handling of tools and materials. Furthermore, the temporary installation location of the lighting fixture 10 is preferably at a height that will not be reached by people on the office floor. Such a height is, for example, a location where the vertical distance from the floor surface of the office floor to the bottom of the lighting fixture 10 is 2 m or more.

[0018] FIG. 3 is a diagram illustrating the configuration of the temporary installation device 4. FIG. 4 is a perspective view showing an example in which the temporary installation device 4 is applied to a lighting device. The temporary installation device 4 includes a fully threaded bolt 6 and a long nut 8. The thread diameter and thread pitch of the fully threaded bolt 6 are preferably the same as those of the suspension bolt 12. For example, the thread diameter of the fully threaded bolt 6 is W3 / 8. This is because the thread diameter of the fully threaded bolt used for the suspension bolt 12 of ceiling-mounted equipment is W3 / 8 unless the equipment is extremely heavy. The length of the fully threaded bolt 6 is a length that satisfies the above conditions for the temporary installation position, and is, for example, 200 mm or more and 300 mm or less.

[0019] The long nut 8 is a hexagonal nut having a thread diameter and thread pitch that threadably engages with the suspension bolt 12 and the fully threaded bolt 6. The tip of the suspension bolt 12 is screwed into one end of the long nut 8, and the base end of the fully threaded bolt 6 is screwed into the other end, thereby connecting the suspension bolt 12 and the fully threaded bolt 6. For example, the thread diameter of the long nut 8 is W3 / 8, and the length is 40 mm.

[0020] 3. Temporary installation method for lighting fixtures using temporary installation device for lighting fixtures Next, a detailed description will be given of the procedure for temporarily installing lighting fixture 10 using the temporary installation device for a lighting device according to the embodiment. Fig. 5 is a partial cross-sectional view of a lighting device temporarily installed using temporary installation device 4, viewed along the -Y direction in the figure. Below, the procedure for temporarily installing one lighting fixture 10 out of multiple lighting fixtures 10 will be illustrated, but the procedure for the other lighting fixtures 10 is similar.

[0021] 3-1. Preparation process: If the lighting fixtures 10 are installed on a pair of suspension bolts 12 suspended from a ceiling slab insert or the like, a temporary installation device 4 is provided for each lighting fixture 10, each including two fully threaded bolts 6 and two long nuts 8.

[0022] 3-2.Removal process: Lighting fixture 10 is bolted to hanging bolt 12. A worker removes lighting fixture 10 from hanging bolt 12 and also removes the electrical wiring of lighting fixture 10. This exposes the tip of hanging bolt 12 at opening 22 in ceiling board 20.

[0023] 3-3.Connection process: The worker screws one end of the long nut 8 onto the tip of the suspension bolt 12, and screws the other end onto the base end of the fully threaded bolt 6. This connects the tip of the suspension bolt 12 and the base end of the fully threaded bolt 6 in a straight line.

[0024] 3-4.Temporary installation process: The worker temporarily installs lighting fixture 10 on the tip of threaded bolt 6 using the bolt that was used to secure lighting fixture 10 to suspension bolt 12. This positions lighting fixture 10 at a position that is the length of threaded bolt 6 lower. As a result, the installation height h1 of the bottom end of lighting fixture 10 from the ceiling surface is, for example, 200 mm to 300 mm, and the installation height h2 of the bottom end of lighting fixture 10 from the office floor is, for example, 2 m or more. The worker also connects electrical wiring to lighting fixture 10. The existing electrical wiring has excess length in the attic, and is extended below ceiling level while still connected from the original distribution board. This allows lighting fixture 10 to be temporarily installed in a state where it can be used as temporary lighting.

[0025] After the lighting fixtures 10 are temporarily installed in the temporary installation process, ceiling construction work is carried out on the office floor on a day when the office is closed, and normal office work is carried out on an office day when the office is open. The temporarily installed lighting fixtures 10 are used as temporary lighting for the office floor.

[0026] 3-5. Removal process: Once the ceiling construction work is complete, workers remove the temporarily installed lighting fixtures 10 and temporary installation devices 4. Here, the lighting fixtures 10 and temporary installation devices 4 are removed in the reverse order of the temporary installation process and the connection process.

[0027] 3-6. Installation process for new lighting fixtures: The worker connects the electrical wiring to the new lighting fixture and secures the new lighting fixture to the suspension bolt 12. If the lighting fixture is of the same model, the lighting fixture's base or reflector edge will fit neatly into the new opening 22, which has the same dimensions as the existing opening 22. Also, to make it easier to change existing, old-style fluorescent lighting fixtures to highly energy-efficient LED lighting, lighting fixture manufacturers produce replacement LED lighting fixtures of the same shape to obtain the same illuminance, and with these replacement LED lighting fixtures, the lighting fixture's base or reflector edge will fit neatly into the new opening 22, which has the same dimensions as the existing opening 22.

[0028] 4. Function and effect of temporary installation method of lighting fixtures According to the temporary installation method using the temporary installation device 4 as described above, the following actions and effects can be obtained.

[0029] The lighting fixtures 10, temporarily installed below the ceiling surface using the temporary installation device 4, can function as temporary lighting during construction and while the office floor is in operation. This eliminates the need to remove and install the lighting fixtures 10 each time construction work on the ceiling overlaps with other office operating days. In particular, by temporarily installing the lighting fixtures 10 at a height 200 to 300 mm below the ceiling surface, it is possible to prevent interference with the ceiling construction work. This eliminates the need for temporary lighting specifically for the construction period, allowing existing equipment to be reused. Furthermore, by temporarily installing the lighting fixtures 10 so that the distance from the office floor surface to the bottom of the lighting fixtures 10 is at least 2 m, it is possible to prevent people on the office floor from coming into contact with the lighting fixtures 10.

[0030] The fully threaded bolts 6 of the temporary installation device 4 have the same thread diameter and thread pitch as the suspension bolts 12. This allows the lighting fixtures 10 to be fixed to the fully threaded bolts 6 in the same way as they are fixed to the suspension bolts 12. Furthermore, because existing lighting fixtures 10 that are scheduled to be discarded can be reused as lighting fixtures for temporary installation, there is no need to worry about dirt or scratches on the lighting fixtures 10 during the construction period.

[0031] The lighting fixture 10 temporarily installed by the temporary installation device 4 serves as a guide for a new opening for a new lighting fixture to be installed during ceiling construction work.

[0032] The fully threaded bolts 6 and long nuts 8 of the temporary installation device 4 can be reused in other construction work.

[0033] 5. Variations in temporary installation methods for lighting fixtures The lighting fixture temporary installation method according to the embodiment may be modified as follows.

[0034] There are no limitations on the dimensions of the fully threaded bolt 6 and the long nut 8 of the temporary installation device 4. In other words, the length of the fully threaded bolt 6 can be set appropriately depending on the height of the ceiling of the office building. Furthermore, the thread diameter or thread pitch of the fully threaded bolt 6 does not necessarily have to be the same as that of the suspension bolt 12. However, if the thread diameter or thread pitch of the fully threaded bolt 6 is different from that of the suspension bolt 12, the long nut 8 may be configured as a nut that combines two types of thread diameter or thread pitch so that one half of the nut from one end threads onto the fully threaded bolt 6 and the other half of the nut from the other end threads onto the suspension bolt 12.

[0035] Furthermore, the ceiling in this case is a light-weight ceiling, that is, openings and the like have been described assuming a conventional lightweight steel stud ceiling with rafters, rafter supports and board ceiling, but it is not limited to this, and it is also possible to similarly configure a system ceiling in which square ceiling panels are fitted into T-bar rafter supports. [Explanation of symbols]

[0036] 4 Temporary installation equipment 6 fully threaded bolts 8 long nuts 10 Lighting fixtures 12 Hanging bolt 14 Ceiling slab 20 Ceiling board 22 Opening

Claims

1. A temporary installation method for temporarily installing an existing lighting fixture, which has a base or a reflector panel parting installed at the ceiling surface of a ceiling board using a hanging bolt, at a position lower than the ceiling surface, A preparation process of preparing a fully threaded bolt and a long nut that is threaded onto the hanging bolt and the fully threaded bolt; a removal step of removing the lighting fixture from the suspension bolt; a connecting step of connecting the base end side of the fully threaded bolt to the tip end side of the hanging bolt using the long nut; a temporary installation step of temporarily installing the lighting fixture on the tip side of the fully threaded bolt; A method for temporarily installing a lighting fixture, comprising:

2. 2. The method for temporarily installing a lighting fixture according to claim 1, wherein the fully threaded bolt has the same diameter and pitch as the hanging bolt.

3. 3. A method for temporarily installing a lighting fixture as described in claim 1 or claim 2, characterized in that the length of the fully threaded bolt is such that the distance from the base or edge of the reflector of the temporarily installed lighting fixture to the ceiling surface is 200 mm or more and 400 mm or less.

4. 4. A method for temporarily installing a lighting fixture according to claim 1, wherein the length of the fully threaded bolt is such that the distance from the bottom end of the temporarily installed lighting fixture to the floor surface is 2 m or more.

5. After the installation of the ceiling board is completed, removing the temporarily installed lighting fixture from the fully threaded bolt; removing the fully threaded bolt and the long nut from the hanging bolt; installing a new lighting fixture using the hanger bolt; The method for temporarily installing a lighting fixture according to any one of claims 1 to 4, further comprising:

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