JPH0673801U - Lighting stand for construction work - Google Patents

Abstract

(57) [Abstract] [Purpose] It is possible to easily obtain the desired illuminance according to the type of job and process, and even if an overload current flows through the concrete driven F cable by using an electric tool, the worker can temporarily There is no need to go to the electric board in the darkness to improve work efficiency and ensure work safety. [Structure] An outlet 16 with an earth leakage breaker is provided on a column 13 standing upright on a base 11, and an illumination device having a plurality of lighting fixtures 21 and a cylindrical lamp guard 22 surrounding the lighting fixtures 21 is supported on the column 13. A projector 25 is mounted above the lighting device via a swing mechanism 24.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lighting stand used for construction work such as temporary construction work.

[0002]

[Prior art]

 For example, in order to supply electricity to the work site 1 at a temporary construction site, as shown in FIG. 6, a temporary stand 3 with a temporary distribution board 2 attached is placed on the floor of the work site 1, and The F cable 4 connected to the switchboard 2 is extended along the floor surface, the drum outlet 5 is connected to the F cable 4, and the F cable 4a connected to the temporary distribution board 2 is connected to the concrete support part 6 or the ceiling. This is performed by supporting the base portion 7. Then, in order to illuminate the work site 1 with the incandescent lamp or the fluorescent lamp 8, the wiring to which the incandescent lamp or the fluorescent lamp 8 is attached is hung from the ceiling of the work space in the shape of a paper clip, and the work is performed. When using the electric tool 9 in the field 1, the plug provided on the cord of the electric tool 9 is attached to the drum outlet 5.

[0003]

[Problems to be solved by the device]

 However, the illumination method of hanging incandescent lamps and fluorescent lamps from the ceiling of the work space in a rectangular shape is because the construction materials hit the incandescent lamps or fluorescent lamps when they are brought into the work site. Lamps and fluorescent lamps may be damaged, and there are many problems in safety management.In addition, the installation position of incandescent lamps and fluorescent lamps must be sequentially changed according to the progress of the work site. Construction cannot respond promptly to the progress of the work site. In addition, the installation position of the temporary distribution board will be further away from the work site as the work site progresses. Therefore, the use of an electric tool will cause an overload current to flow through the F cable, and the temporary distribution board will be installed. If the breaker is turned off and de-energized, it is necessary for an operator to go to the temporary distribution board in the dark without illumination and operate the breaker in the on state. However, if the temporary distribution board is installed far away from the work site, it will increase the labor of the workers who move when the breaker is activated, resulting in poor work efficiency and increased safety risk. There are difficulties.

Further, a stand having a conventional structure equipped with an incandescent lamp or a fluorescent lamp can cope with movement of a work space, but since a required illuminance is constant, a desired illuminance according to a job type and a process is obtained. However, if an overload current flows through the F-cable and the breaker installed on the temporary distribution board is activated, a temporary worker is installed each time, as in the case of incandescent lamps and fluorescent lamps. There is a drawback that the work efficiency becomes poor because it is necessary to go to the distribution board.

The present invention has been made in view of the above points, and it is possible to easily obtain a desired illuminance according to a job type and a process, and it is not necessary to visit a temporary distribution board of a worker. The purpose is to provide a lighting stand for construction work that improves work efficiency and safety management.

[0006]

[Means for Solving the Problems]

 The lighting stand for construction work of the present invention comprises a base equipped with casters, a pillar standing on the base, an outlet with an earth leakage breaker arranged on the pillar, and a plurality of vertically arranged lighting fixtures. A lighting device having a lamp guard that surrounds these lighting fixtures and supported by the support, a projector mounted above the lighting device through a swing mechanism, and a cord winding drum fixed to the base or support. It consists of and.

[0007]

[Action]

 The lighting stand for construction work of the present invention can be easily moved to the installation position by the caster provided on the base, and the worker can walk to the temporary distribution board by using the outlet equipped with the earth leakage breaker installed on the column. It is possible to easily obtain the desired illuminance according to the type of job and the process by eliminating the need to carry the light, and by collaborating with the plurality of lighting fixtures provided in the lighting device and the projector mounted through the swing mechanism.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a lighting stand 10 for construction work applied to temporary construction work according to the present invention. A base 11 of the lighting stand 10 for construction work is made by forming a steel plate into a rectangular column shape. The base 11 is designed to prevent the lighting stand 10 from tipping over by making the entire space heavy by filling the interior space with concrete, and by setting the center of gravity of the lighting stand 10 itself at a lower position. The size of the base 11 is determined according to the weight and height of the lighting stand 10. The base 11 has casters 12 attached to respective corners of the lower surface thereof to facilitate the movement of the lighting stand 10. If the caster 12 provided with a stopper is used, the position of the lighting stand 10 can be securely fixed. This stopper is provided on part or all of the caster 12 as required. Further, a square columnar support 13 formed of a steel plate is integrally connected to the center of the upper surface of the base 11 by welding means. A winding drum 15 around which a cord 14 is wound is attached to a lower portion of a column 13 standing upright on the base 11, and an outlet 16 with an earth leakage breaker is provided on a side surface of the column 13 above the winding drum 15. The switch 17 and the emergency power supply 27 are fixedly installed. The emergency power supply device 27 is, for example, a CADNICA battery having a compact shape.

On the other hand, as shown in FIG. 2, a flange portion 18 is formed integrally with the support column 13 at the upper end of the support column 13. The flange portion 18 is for supporting the support pillar 13 in the shape of a quadrangular prism formed of an impact resistant plastic material. That is, the flange portion 20 formed corresponding to the flange portion 18 at the lower end portion of the square columnar column 19 made of impact-resistant plastic material is joined to the flange portion 18 of the column 13 and the joined flange portion 18 is formed. The pillar 13 and the pillar 19 are integrally joined by fixing the flange portion 20 and the flange portion 20 to each other with a normal fixing tool.

On the other hand, a fluorescent lamp 21 is arranged on each side surface of the pillar 19 so as to extend in the vertical direction. Since the number of these fluorescent lamps 21 corresponds to the number of side surfaces of the support column 19, it is four in FIG. Further, in order to protect these fluorescent lamps 21, a cylindrical lamp guard 22 is attached so as to surround these fluorescent lamps 21. The cylindrical lamp guard 22 is formed of a transparent plastic material having excellent impact resistance, but may be formed of a metal mesh. The lower end of the cylindrical lamp guard 22 is fitted or fixed to the bottom cover 23 sandwiched between the flange portion 18 and the flange portion 20 by a screw step. At an appropriate position of the bottom cover 23, an opening for discharging heat generated from the fluorescent lamp 21 and other electric parts to the outside can be provided.

Further, a projector 25 is attached to the upper end of the column 19 via a swinging mechanism 24, and the upper end of the cylindrical lamp guard 22 is detachably attached to the upper end of the cylindrical lamp guard 22 via a screw portion. 26 are arranged. As shown in FIG. 3, the upper lid 26 has a waterproof structure with a shape that covers the open end of the cylindrical lamp guard 22. The projector 25 has a base 24a of the swinging mechanism 24 fixed to a fixing portion 19a formed at the upper end of the support column 19 by bolt means, and is provided on a cord 27 extending through the inside of the swinging mechanism 24. The plug 28 is attached to an outlet 29 provided on the upper side surface of the column 19. In this way, by screwing the upper lid 26 to the cylindrical lamp guard 22, the fluorescent lamp 21 is replaced by removing the upper lid 26 from the cylindrical lamp guard 22 and pulling the cylindrical lamp guard 22 upward. be able to. The upper lid 26 may be fitted to the cylindrical lamp guard 22.

The switch 17 provided on the support column 13 turns on the four fluorescent lamps 21 and the projector 25 and turns on only one of the four fluorescent lamps 21. It is controlled in three stages when it is turned on. When only one fluorescent lamp 21 is turned on, it works as a night light.

In the above-mentioned embodiment, the fluorescent lamp is used as the lighting fixture, but it goes without saying that it may be an incandescent lamp, a halogen lamp or a mercury lamp.

FIG. 4 shows a place where the lighting stand for construction work according to the present invention is used. In this case, the concrete driving F cable 30 connected to the temporary distribution board 2 is placed at a position where it does not interfere with the work of the work site 1. For example, by burying it in the concrete surface 31 (Fig. 5) of the work site 1 so as to extend to the corner of the room and connecting the outlet 5 to this concrete driven F cable 30, this outlet 5 can be electrically connected. Connect tools and lighting equipment.

Therefore, it is easy to move the lighting stand 10 for construction work to the work site by means of the casters 12 provided on the base 11, and the moving distance of the lighting stand 10 is wound around the winding drum 15. It is possible within the range of the length of the cord 14, and the lighting of the work site is made possible by the cooperation of the plurality of fluorescent lamps 21 and the projector 25 mounted through the swing mechanism 24, depending on the type of job and process. A desired illuminance can be easily obtained, and the projector 25 can be directed in a desired direction by the movement of the swing mechanism 24. In addition, when an overload current flows through the concrete driving F cable 30 due to the use of the electric tool, the earth leakage breaker of the outlet 16 with the earth leakage breaker operates, so that the worker goes to the temporary distribution board 2. No need. Further, the replacement of the fluorescent lamp 21 can be easily performed by removing the upper lid 26 from the cylindrical lamp guard 22.

In addition, when a power failure or an earth leakage breaker of the outlet 16 with an earth leakage breaker is activated to cut off the electricity supply to the lighting stand 10 for construction work, the electricity from the emergency power supply device 27 energizes the night light which also serves as an emergency light. By turning on the emergency light, work safety will be further improved.

[0017]

[Effect of device]

 As described above, according to the present invention, it is possible to easily obtain a desired illuminance according to the type of job and process, and the use of an electric tool causes an overload current to flow into the concrete-driving F-cable to turn off the illumination. However, since it is not necessary for workers to go to the temporary distribution board in the darkness, work efficiency can be improved and construction safety can be secured. Moreover, if an extraordinary power supply is attached, the emergency light will turn on even when the power to the lighting stand for construction work is cut off, so workers do not have to go in the dark.

[Brief description of drawings]

FIG. 1 is a perspective view of a lighting stand for construction work according to the present invention.

FIG. 2 is a sectional view showing a part of a lighting stand for construction work according to the present invention in a partially broken state.

FIG. 3 is a view showing a floodlight portion of a lighting stand for construction work according to the present invention.

FIG. 4 is a view showing a work site of temporary construction work using the lighting stand for construction work according to the present invention.

FIG. 5 is a view showing an outlet attached to a concrete driving F cable.

FIG. 6 is a view showing a work site of conventional temporary construction work.

[Explanation of symbols]

 10 Lighting stand 11 Base 13 Support 16 Outlet with earth leakage breaker 21 Fluorescent lamp 22 Cylindrical lamp guard 24 Swing mechanism 25 Floodlighter 26 Top lid 27 Emergency power supply device

Claims (1)

[Scope of utility model registration request] 1. A base provided with casters, a pillar standing on the base, an outlet equipped with an earth leakage breaker arranged on the pillar, a plurality of vertically arranged lighting fixtures, and surrounding these lighting fixtures. Construction work including a lighting device having a lamp guard and supported by the pillar, a floodlight mounted above the lighting device via a swing mechanism, and a cord winding drum fixed to the base or the pillar Lighting stand.