JP3006750U - Leveling device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an improved leveling device capable of easily and reliably performing horizontal / vertical alignment without requiring external illumination even in a narrow and insufficiently illuminating place. . A horizontal bubble tube 20 for measuring horizontal and a vertical bubble tube 30 for measuring vertical are arranged on a part of a plate-like body 11 having a flat surface 12, and these bubble tubes 20,
The light bulbs 50, 50, which are light emitters, are arranged on the back side to which the 30 is attached, and further, a battery 60 is built in the device and is connected through a switch 70 provided in a part of the plate-like body to form the bubble tube. Turn on the light bulbs 50, 50 located behind the 20, 30
It can be controlled off, and depending on the worker's need, the light bulb 50, 5
The light from 0 irradiates the bubble tubes 20 and 30 from the back side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a leveling device equipped with a so-called bubble tube, which is used when performing horizontal or vertical alignment at a construction site or the like.

[0002]

[Prior art]

 Conventionally, leveling devices used for horizontal or vertical alignment at a construction site are generally called level or wooden level, and are commercially available. A bubble tube containing bubbles together with a liquid is placed inside a transparent tube horizontally or vertically with respect to the flat reference surface (the surface that comes into contact with the surface to be measured) of the plate. When the leveling device is used for leveling or verticalizing the surface to be measured, the bubbles in the bubble tube are placed in the central part of the bubble tube with the reference surface in contact with the surface to be measured. (Marked on the outside of the vial) and check this.

[0003]

[Problems to be solved by the device]

 By the way, with the conventional leveling device, there is no particular problem when it is used in a sufficiently bright place, but for example, in a narrow and dark work site where the circumference is surrounded by walls, horizontal / vertical alignment is required. It is difficult to confirm the position of the bubbles in the bubble tube for performing the operation.To perform such work, while the other worker illuminates the leveling device with an electric light, the It was common to do However, in this case, the work efficiency of the work is lowered because the work required by one person is originally required to illuminate the leveling device with the light, and yet another worker is required.

In view of the above-mentioned problems in the prior art, the present invention does not require external illumination even in a narrow and insufficiently illuminating place, and simply and reliably performs horizontal / vertical alignment. It is an object of the present invention to provide an improved leveling device capable of performing the above.

[0005]

[Means for Solving the Problems]

 The above-mentioned object of the present invention is to irradiate the bubble tube from the back side in a leveling device having a bubble tube arranged horizontally or vertically with respect to the flat surface on a part of a plate having a flat surface. And a switch for opening and closing a circuit between the battery and the light emitter, the light emitter being built in the main body, a battery that is built in the main body and causes the light emitter to emit light, and a leveling device. It

[0006]

[Action]

 That is, according to the leveling device according to the present invention, for example, by attaching a light-emitting body such as a battery-powered light bulb to the back side of the bubble tube, it is possible to irradiate light from the back side of the bubble tube. Allows use in small, poorly lit areas. Furthermore, by constructing a structure in which the light bulb, which is the light-emitting body, is connected to the battery built into the device by a switch provided in a part of the device, a worker performing horizontal / vertical alignment using this leveling device It can be turned on and off as needed.

[0007]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, FIG. 1 shows a leveling device 10 according to an embodiment of the present invention. Reference numeral 11 in the drawing is a plate-like body that constitutes this leveling device. Although a plate-shaped member is used, the plate-shaped member is not limited to this and may be made of synthetic resin or aluminum. . The plate-shaped body 11 has a flat surface 12, which is a surface that comes into contact with the surface to be measured that is horizontal or vertical.

The plate-shaped body 11 is provided with so-called bubble tubes 20 and 30 horizontally and vertically with respect to the flat surface 12 and enclosing colored bubbles in a transparent tube such as a glass tube. Has been done. That is, the bubble tube 20 is a horizontal bubble tube arranged horizontally with respect to the flat surface 12. Reference numeral 21 in the drawing is a protective case made of transparent plastic that surrounds the outside of the horizontal bubble tube 20. The bubble tube 20 and the protective case 21 are semicircular formed on the upper surface of the plate-like body 11. It is housed in a recess 23 formed together with the notch 22 and reference numerals 24 and 24 denote screws for housing and fixing the protective case 21 in the recess 23.

Further, a circular opening 25 is formed on the right side of the plate-shaped body 11 in the drawing, and a vertical bubble tube 30 arranged perpendicularly to the flat surface 12 is formed inside the opening 25. It is housed and fixed in a state of being surrounded by a protective case 31 made of transparent plastic.

Further, according to the present invention, as shown in a partial cross-sectional view of FIG. 2, on the back side where the bubble tube is attached, that is, on the side opposite to the position where the operator sees the bubble tube, Specifically, in the case of the horizontal bubble tube 20, on the side opposite to the upper surface 13 side of the plate-like body 11 shown in FIG. 1, on the other hand, in the case of the vertical bubble tube 30, the plate-like body 11 of the figure is shown. A so-called light emitting body 50 is arranged on the opposite side of the right side surface 14. In this embodiment, so-called electric bulbs 50 and 50 are used as the light emitter, but it is possible to provide a common light source for the horizontal bubble tube 20 and the vertical bubble tube 30. Further, instead of the light bulb 50 described above, it is possible to use, for example, a fluorescent lamp or a planar light emitter.

Further, a power supply for supplying electric power for light emission to the light bulbs 50, 50 which are the above-mentioned light emitters is provided at a part of the plate-like body 11 (on the left side of FIG. 1 in this embodiment). The so-called battery 60, which constitutes the A switch 70 is provided on a part of the plate-like body 11 (in this embodiment, the upper surface 12 of FIG. 1), and the light bulbs 50, 50 are electrically connected to the battery 60 via the switch 70. Connected to each other. As a result, by opening / closing (turning on / off) the switch 70, the electric power from the battery 60 is supplied to the light bulbs 50, 50 through the wiring shown by the dotted line in the figure. They emit light so that they can be turned on and off. It is easier to see if the liquid sealed in the bubble tubes 20 and 30 is colored with a fluorescent dye or the scale lines attached to the tube are formed with fluorescent paint.

FIG. 3 shows how the leveling device 10 according to the embodiment of the present invention performs horizontal or vertical alignment. That is, in the horizontal alignment of FIG. 3 (a), the horizontal measurement is performed using the horizontal bubble tube 20, and in the vertical alignment of FIG. 3 (b), the vertical measurement is performed using the vertical bubble tube 30. To do. Even when such an operation is performed in a narrow and insufficient lighting place, the switch 70 is turned to the closed (ON) side so that the light bulbs 50, 50, which are light emitters, emit light. It becomes possible to perform vertical alignment easily and surely.

In the above embodiment, the switch 70 for controlling the light emission of the light bulbs 50, 50, which are the light emitters, is provided in common, but the present invention is not limited to such a configuration. Alternatively, the switch 70 may be provided for each light bulb 50, 50.

[0014]

[Effect of device]

 As is clear from the above detailed description, the leveling device according to the present invention can be used even in places where it was difficult to perform work by one person in the past, such as a narrow and dark work site in a construction site. It is possible to easily and reliably perform horizontal / vertical placement without the need for lighting from the ground, and therefore it is possible to prevent the work efficiency of horizontal / vertical placement, which would reduce the work efficiency of construction. That is, it has an excellent practical effect.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating a structure of a leveling device according to an exemplary embodiment of the present invention, including a partially developed portion.

2 is a partially enlarged cross-sectional view showing an internal structure of a characteristic portion of the leveling device of FIG.

FIG. 3 is an explanatory diagram of a method of use for explaining how a horizontal / vertical alignment operation is performed using the above leveling device.

[Explanation of symbols]

 10 Leveling Device 11 Plate 12 Flat Surface 20 Horizontal Bubble Tube 30 Vertical Bubble Tube 50 Light Emitting Body (Light Bulb) 60 Battery 70 Switch

Claims (1)

[Scope of utility model registration request] 1. A leveling device having a bubble tube arranged horizontally or vertically with respect to the flat surface in a part of a plate-like body having a flat surface, wherein the main body is irradiated with the bubble tube from the back side. A leveling device comprising: a built-in light emitting body, a battery built in the main body for causing the light emitting body to emit light, and a switch for opening and closing a circuit between the battery and the light emitting body.