JP2010163847A - Stepladder and working floor incorporating led luminaire and secondary battery - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stepladder and a working floor which are equipped with a means for securing illuminance in order to improve the safety of night work and work at a dark place. <P>SOLUTION: The stepladder comprises two leg columns 2 and rungs 3 installed between the columns 2 at regular intervals. Two sets of the leg columns are erected vertically, and a top board 1 is provided on the top, and the lower part is opened and closed by hand. An LED luminaire 4 is incorporated inside the leg column 2 or below the rung 3 to illuminate light onto the rung 3. The working floor comprises the stepladder which is provided with a switch 5 for lighting the LED luminaire 4 on the surface of the column leg 2 and incorporates a secondary battery 6 for a power source into the leg column 2, and scaffolding boards 9 which respectively have standing poles at four corners and are installed at regular intervals. The LED luminaire 4 is incorporated inside the standing pole 11 to illuminate light onto the scaffolding boards 9. The working floor is provided with an automatic light controller 7 for automatically lighting the LED luminaire 4 according to darkness, and incorporates the secondary battery 6 into the standing pole 11, thereby securing illuminance to improve the safety of work. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a function of a stepladder and a work floor that have improved safety by incorporating LED lighting in order to ensure illuminance when working in a dark place.

  Conventional stepladders and work floors used at construction sites do not have built-in lighting fixtures, and when using at night work or in places where the feet are dark, a method of securing illumination by installing a floodlight etc. is adopted. Has been.

Although it is not a stepladder or work floor, a technique that incorporates a lighting fixture in a ladder used indoors has been proposed.
JP 10-37641 A JP2002-242568

  In the case of the background art, a commercial power source is required to turn on the projector, etc., and any place where the power source can be easily secured is acceptable, but in other cases, measures are taken to secure the power source with a generator or the like. Yes. Further, when moving the work place, it is necessary to move both the stepladder and the projector, which is inefficient in work.

  Therefore, the present invention incorporates LED lighting and a secondary battery in the stepladder and the work floor, so that it can be used in any place such as a dark place. In this case, it is only necessary to move the stepladder, and to provide a stepladder and a work floor that improve work efficiency.

  According to the first aspect of the present invention, it is composed of pedestal columns provided on both the left and right sides, and a pedestrian bridge installed at regular intervals between the pedestal columns. A top plate is provided at the top, and the lower step is a stepladder that can be manually opened and closed.A lighting fixture is built inside the pedestal of the stepladder or at the bottom of the step pedestal. When light is irradiated and built in the lower part of the step rail, light is applied to the upper portion of the step rail that is one step below the step rail, and the switch for lighting the lighting fixture is either left or right or left or right. Provide on the surface of the pillar. Built-in lighting fixtures can ensure the illuminance of the feet by simply turning on the built-in lighting fixtures at night or in dark places at construction sites. In addition to the improvement, it is only necessary to move the stepladder when moving the work place, and the work efficiency is also improved.

  According to the second aspect of the present invention, there is a work floor made of scaffolding plates and the like that have building sites at four corners and are vertically erected at a certain interval, and the lighting fixtures are located inside the building floor of the work floor. Is built in, and the upper part of the scaffolding plate is irradiated with light, and an automatic flasher is provided on the building to automatically turn on the lighting fixture according to light and darkness. Built-in lighting fixtures can secure the illuminance of the feet just by turning on the built-in lighting fixtures during night work at construction sites or in dark places. improves.

  According to the third aspect of the present invention, charging can be performed by incorporating a chargeable / dischargeable secondary battery such as a lithium-ion battery in the pedestal, step pedestal, or building site for the power source of the lighting fixture. It has the characteristics that made it possible to use. A primary battery or other primary battery may be used for the power supply of the lighting fixture. However, in the case of a dry battery, it is necessary to replace it with a new one when the capacity is exhausted. Since it is not necessary to replace with a new battery, the system can be made easy to use.

  According to the fourth aspect of the present invention, the use of the LED lighting for the lighting fixture extends the usage time of the secondary battery and makes it unnecessary to replace the lamp for a long time. The lighting fixture may be a fluorescent lamp or an incandescent lamp, but a highly reliable system can be obtained by using LED lighting with low power consumption.

  According to the stepladder and work floor according to the present invention, it is possible to sufficiently secure the illuminance at the foot by the built-in LED lighting in the night work at the construction site or the work in the dark place, and the safety of the work is improved. In addition, when moving the work place, it is only necessary to move the stepladder, and the work efficiency is improved.

FIG. 1 is a schematic view of a stepladder showing an embodiment of the present invention. FIG. 2 is a schematic diagram of a work floor showing one embodiment of the present invention. FIG. 3 is a front view and an elevation view in the case where the LED lighting and the secondary battery are built in the pedestal in the stepladder. FIG. 4 is a bottom view and an elevational view of the case where the LED lighting and the secondary battery are built in the lower part of the step rail in the stepladder. FIG. 5 is a schematic diagram in the case where LED lighting and a secondary battery are built in the building on the work floor. FIG. 6 is a schematic diagram in the case of charging a secondary battery built inside the pedestal in the stepladder.

  Next, as the best mode for carrying out the present invention, FIG. 1 which is a schematic view of a stepladder, FIG. 2 which is a schematic view of a work floor, and LED lighting and a secondary battery are built in the pedestal in the stepladder. FIG. 3, which is a front view and an elevation view, and FIG. 4, which is a view seen from below when LED lighting and a secondary battery are built in the lower part of the step rail in the stepladder, and FIG. FIG. 5 is a schematic diagram when LED lighting and a secondary battery are built in the building floor on the work floor, and FIG. 6 is a schematic diagram when charging the secondary battery built inside the pedestal in the stepladder. Will be described in detail.

  FIG. 1 is a schematic view of a stepladder showing an embodiment of the present invention. FIG. 3 is a front view and an elevation view of the case where the LED illumination 4 and the secondary battery 6 are built in the pedestal 2. 4 is a view and an elevational view as seen from the bottom when the LED lighting 4 and the secondary battery 6 are built in the lower part of the step 3. The present embodiment is composed of a pedestal 2 provided on both the left and right sides, and a pedestal 3 installed between the pedestal 2 at a certain interval, and two of them are set up vertically, and a ceiling is placed on the top. The board 1 is provided, and the lower part is a stepladder that is manually opened and closed. The LED lighting 4 is built in the inside of the step column 2 or the lower part of the step frame 3, and when it is built in the inside of the step column 2, the step frame 3 When the light is irradiated on the upper part of the pedestal 3 and built in the lower part of the step pedestal 3, the light is applied to the upper part of the step pedestal 3 below the step pedestal 3, and the switch 5 for lighting the LED illumination 4 Is provided on the surface of either the left or right pedestal 2, and the secondary battery 6 is built in the pedestal 2 for powering the LED lighting 4, thereby improving work safety.

  More specifically, the stepladder of the present embodiment is used for high-altitude work in places where sufficient illuminance is not ensured, such as night work or places where the feet are dark, such as in a construction site. It is less than 2 m. When using it, the LED lighting 4 inside the step column 2 of the stepladder or the lower part of the step 3 is turned on by the switch 5 to irradiate the upper part of the step 3, thereby ensuring the illuminance at the foot. Move up and down after installing the stepladder at the place. When moving to another work place after the work is completed, move the LED lighting 4 inside the step column 2 or under the step 3 to keep it lit to ensure the illuminance at the foot during the movement. May be. When moving in a place where sufficient illuminance is secured, the LED illumination 4 is turned off by the switch 5 and moved, and when arriving at the work place, the LED illumination 4 is turned on again by the switch 5 to illuminate the foot. Secure and use for lifting.

  In this way, the illuminance of the feet is sufficiently secured by the LED lighting 4 built in the pedestal 2 or the lower part of the step pedestal 3, and the stepladder can be placed even in places where sufficient illuminance is not secured such as night work or where the feet are dark. It can be lifted and lowered safely. In addition, when moving to the next work place after the work is completed, the illuminance at the foot can be secured by the LED lighting 4 built in the pedestal 2 or under the step 3 so that the work safety is ensured. In addition to the improvement, only the stepladder needs to be moved at the time of movement, and there is no need to move another illumination device such as a projector, so that the work efficiency is improved.

  FIG. 2 is a schematic diagram of a work floor showing an embodiment of the present invention, and FIG. 5 is a schematic diagram when the LED lighting 4 and the secondary battery 6 are built in the building 11. The present embodiment is a work floor made up of scaffolding plates 9 and the like that have building sites 11 at four corners and are vertically erected at a certain interval. LED lighting 4 is built inside the building floor 11 of the work floor. In order to automatically illuminate the LED lighting 4 with light and darkness, an automatic flasher 7 is provided on the building 11, and a secondary battery 6 is used as a power source for the LED lighting 4. By incorporating it in the building 11, work safety is enhanced.

  More specifically, the work floor of the present embodiment is assembled to secure a height for work around a building such as a construction site. Once assembled, it remains in place for a certain period until the work is completed. The worker performs work at a high place using the work floor, but the work floor is also used for moving the work place, and is frequently used. When working at night, the illumination around the building is particularly difficult to secure, and the feet are difficult to see. At night, the LED lighting built into the building 11 is provided by the automatic flasher 7 provided on the building 11. When 4 is automatically turned on by light and dark, the illuminance of the foot is ensured by irradiating the scaffolding plate 9 with light.

  Thus, the illuminance at the foot is sufficiently secured by the LED illumination 4 built in the building 11, and the work can be performed more safely even at night work.

  FIG. 6 is a schematic diagram when charging the secondary battery 6 built in the pedestal 2, and when the battery capacity of the secondary battery 6 is insufficient, the charger 15 is inserted into the nearest outlet 14. Thus, the secondary battery 6 can be charged. When charging is completed, the charger 15 can be removed and the stepladder can be used again. Further, when there is an outlet 14 near the work place, the charger 15 may be used while being inserted into the outlet 14.

  As is clear from the above description, the stepladder and work floor according to the present embodiment include the LED lighting 4 and the secondary battery 6 so that it can be used in any place such as a dark place by ensuring illuminance. In addition to improving the safety of work, in the stepladder, only the stepladder needs to be moved when the work place is moved, and the work efficiency is also improved.

  The combination of the LED lighting and the secondary battery can be applied not only to a stepladder and a work floor but also to any one that is used in work in a dark place.

DESCRIPTION OF SYMBOLS 1 Top plate 2 Pedestal 3 Step rail 4 LED lighting 5 Switch 6 Secondary battery 7 Automatic blinker 8 Handrail 9 Scaffold plate 10 Bracing 11 Building 12 LED
13 Acrylic cover 14 Outlet 15 Battery charger

Claims (4)

  It consists of pedestal pillars provided on the left and right sides, and pedestals installed at regular intervals between the pedestal pillars. A stepladder that opens and closes, and has a built-in lighting fixture inside the pedestal of the stepladder or at the bottom of the step pedestal. When it is built in, it is configured to irradiate light on the upper part of the step below the step, and a switch for turning on the lighting fixture is provided on the surface of the left or right or left or right pedestal. Stepladder.   A work floor consisting of scaffolding boards that are built at four corners and are installed vertically at regular intervals. A lighting fixture is built inside the construction of the working floor, and the upper part of the scaffolding board is irradiated with light. A working floor characterized by having an automatic flasher on the building in order to automatically turn on the lighting fixture according to light and darkness.   By installing a rechargeable secondary battery such as a lithium-ion battery for the power supply of the lighting fixture in the pedestal or step pedestal or in the building, it is not necessary to replace the battery. The stepladder according to claim 1 and the work floor according to claim 2, which are usable.   3. The stepladder according to claim 1 and the work floor according to claim 2, wherein the use of LED lighting for the lighting fixture extends the use time of the secondary battery and eliminates the need for lamp replacement for a long period of time.

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