JPH07234125A - Level vial for oblique surface - Google Patents

Abstract

PURPOSE:To decide whether inclining degrees of a plurality of oblique surfaces are constant or not by rotatably providing a rotor at a predetermined position of a base body, and providing a bubble tube which can indicates a horizontal state by bubbles at the rotor. CONSTITUTION:A circular rotor 3 is rotatably pivotally secured to a base body 2 at one side surface of the body 2. A long hole 5 is formed at an upper surface of the rotor 3, a bubble tube 6 which can indicate a horizontal state by bubbles is embedded in the hole 5, and the hole 5 is sealed by a transparent horizontal plate 7. When whether a plurality of oblique surfaces inclined at a certain angle at a predetermined interval are constant or not with the one of the oblique surfaces as a reference and the other oblique surfaces are constant or not with the reference oblique surface are checked, the inclined horizontal surface of the body 2 is used for the oblique surface to be the reference, the rotor 3 is rotated, and the rotor 3 is clamped by a winged screw 8 at a position where the bubbles 5a in the tube 6 are moved to a center of the tube 6. Then, this level vial 1 is sequentially brought into contact with the other oblique surfaces, and whether inclining degrees of the oblique surfaces to the oblique surface to be the reference are constant or not is checked.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leveling device for an inclined surface for checking the levelness of a plurality of inclined surfaces of various objects such as building, civil engineering related formwork, machinery and the like.

[0002]

2. Description of the Related Art As a conventional level, for example, Jitsuko Sho 5
There are those disclosed in 2-43330 and Jitsuko 15-1531. In these spirit levels, holes are formed in one side of the thickness direction part of the slender base body and in the width direction part, and bubble tubes with parallel lines drawn at predetermined intervals are internally provided so as to show a horizontal state in the holes. Further, the bubble tube is configured to be protected by a transparent protective cover.

When the above-mentioned level is used, the level is applied to a desired surface for checking the horizontal state, and whether or not the bubbles in the bubble tube at that time are located in the parallel lines described in the bubble tube. Was visually observed to check the horizontal state of the surface.

[0004]

However, in the conventional spirit level as described above, when the spirit level is applied to an inclined surface, bubbles are not located in the parallel lines. It has been difficult to accurately determine whether or not all the surfaces inclined by a certain angle have a constant angle.

The present invention was developed in order to solve the above-mentioned problems, and the object of the present invention is not only to have a horizontal plane but also to have a constant degree of inclination of a plurality of inclined surfaces inclined at a certain angle. It is an object to provide a spirit level for an inclined surface, which can be easily checked whether it is present or not.

[0006]

In order to achieve the above object, the present invention has the following construction. In other words, the rotary body is rotatably provided at a predetermined position of the base body, and the rotary body is provided with a bubble tube for indicating a horizontal state by bubbles.

In addition, a rotary body is rotatably provided at a predetermined position of the base body, and the rotary body can be fixed to the base body at an arbitrary rotation angle position. A bubble tube as shown is provided, and a graduation plate is arranged around the rotating body, and the graduation plate is fixed to the base body. As a matter of course, the level surface for an inclined surface of the present invention may be one in which only the rotating body provided with the bubble tube is provided on the base body, or the level body provided with the bubble tube is attached to the ready-made level. It may be.

[0008]

With the above structure, when it is checked whether or not each of the surfaces inclined at a certain angle with a certain interval is constant with reference to one of the inclined surfaces, the predetermined surface of the base body is The rotating body is rotated against the inclined surface serving as the reference, and the rotating body is fixed at a position where the bubbles in the bubble tube come to the center of the bubble tube. After this state, this level is sequentially applied to other inclined surfaces to check whether or not the inclination of each inclined surface with respect to the reference inclined surface is constant.

Further, in the spirit level provided with a graduation plate,
Similar to the level, first, the horizontal surface of the base body is applied to the inclined surface serving as a reference, and then the rotating body is rotated to fix the rotating body at a position where the bubbles in the bubble tube come to the center of the bubble tube. After this state, the level is sequentially applied to the other inclined surfaces, and the inclination of each surface with respect to the reference inclined surface is examined. By providing the graduation plate, the inclination of each inclined surface can be more accurately and easily examined.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 is an electronic level for an inclined surface according to an embodiment of the present invention, and 2 is a long wooden base body having a rectangular cross section and a parallelogram front surface. Of course, the base body 2 may be formed of a metal member.
In the case of using a metal member, it is preferable to provide a plurality of openings in the base body in consideration of weight and the like. Each side portion 2a of the base body 2 is formed in a horizontal plane shape so that it can be brought into close contact with the surface of various objects whose horizontality is to be examined.

A circular rotating body 3 is rotatably attached to the table body 2 on one surface 2b of the table body 2. The rotating body 3 can be freely rotated in the right rotation direction or the left rotation direction with a finger. The upper surface of the rotating body 3 may be provided so as to be flush with the base body 2, or may be slightly protruded from the surface of the base body 2 so that the outer peripheral edge of the rotating body 3 can be grasped by a finger. An elongated hole 5 is formed in the upper surface portion 4 of the rotating body 3, and a bubble tube 6 that shows a horizontal state by bubbles is embedded in the elongated hole 5, and the elongated hole 5 is sealed with a transparent horizontal plate 7. is there. The portion of the rotating body 3 on which the bubble tube 6 is provided is formed by bulging,
A hole for accommodating the bubble tube 6 may be formed in this raised portion, and the hole may be covered with a transparent plate. In this case, the rotating body 3 can be rotated by the raised portion. Further, the rotating body 3 is provided with a thumbscrew 8 so that it can be fixed at a desired rotation position. By screwing the thumbscrew 8 to the base body 2, the rotating body 3 can be fixed at a desired position. .

In order to fix the rotating body 3 at a desired angular position without fixing the rotating body 3 with the thumbscrew 8, the rotating body 3 is mounted on the base body 2 by a ratchet mechanism (not shown). It is stopped (the stopped state becomes a mechanically fixed state) by stopping the rotation at a desired position by arbitrarily angularly displacing each time, or every angle of 1 degree or less or 1 degree or more. The position may be fixed. In addition, the rotating body 2 may be fixed at an arbitrary displacement angle by various means.

Further, a scale plate 9 is fixed to the base body 2 around the rotary body 3. The scale 9 has an angle scale of 360 degrees. Of course, it is also possible to write a desired scale frequency on the scale 9 by changing the design. Further, the dial 9 may be rotatable.

Further, in the base body 2 of this embodiment, openings 10a and 10b are formed in the central portion of the long side portion 2c and in the position opposite to the rotating body 3 of the base body 2, respectively. Bubble tube 1 which can show a horizontal state by bubbles in 10a and 10b
2a and 12b are buried, and the open surfaces are transparent plates 11a and 11b.
It is sealed with. By using these bubble tubes 12a and 12b respectively, the horizontal plane of the object can be examined in the same manner as the conventional level. Of course, the rotary body 3 provided with the bubble tube 6 and the graduation plate 9 may be provided in the table body 2 without providing the bubble tubes 12a and 12b in the table body 2. In addition, the base tube 2 is provided with the bubble tubes 12a, 1
It is also possible to provide either one of 2b.

With the above-mentioned structure, for example, a plurality of inclined surfaces inclined at a certain angle with a certain interval are set such that one inclined surface is a reference and the other inclined surfaces are constant with respect to the reference inclined surface. When checking whether or not, the inclined horizontal surface A of the base body 2 is applied to the inclined surface (not shown) serving as a reference, and the rotating body 3 is rotated so that the bubbles 6a in the bubble tube 6 are located at the center of the bubble tube 6. The rotating body 3 is fixed by the thumbscrew 8 at the position where it comes. After this state, the level 1 is sequentially applied to other inclined surfaces to check whether or not the inclination of each inclined surface with respect to the reference inclined surface is constant.

The horizontal plane A of the base body 2 is brought into contact with the inclined surface serving as a reference, and the rotary body 3 is rotated to fix the rotary body 3 at a position where the bubble 6a in the bubble tube 6 is located at the center of the bubble tube 6. Then, the angle numerical value of the graduation plate 9 indicated by the position of the horizontal line 6b of the bubble tube 6 at this position is read, and after this state is applied, this level is sequentially applied to the other inclined surfaces to the reference inclined surface. Check the slope of each surface. In this case, since the 360 degree dial 9 is provided, the level 1
The movement of the bubble 6a in the bubble tube 6 when the bubble is applied is visually observed, and the rotating body 3 is rotated so that the bubble 6a is positioned at the center of the bubble tube 6. By reading the angular displacement of the rotating body 3 at this time on the scale of the scale 9, it is possible to check how many times this inclined surface is displaced with respect to the reference inclined surface. By providing the graduation plate 9 in this manner, it is possible to more accurately and easily check the inclination of each inclined surface.

[0017]

As is apparent from the above description, in the leveling device for an inclined surface of the present invention, the rotary body is rotated by contacting the horizontal surface of the table main body with a certain inclined surface which is a reference of the plurality of inclined surfaces, and the inside of the bubble tube. The rotating body is fixed at the position where the bubbles in the center of the bubble tube come into contact, and this state is used as a reference to sequentially apply this level to other inclined surfaces, and the inclination of each inclined surface is constant with respect to the reference inclined surface. Thus, it is possible to easily and accurately check the inclination of the plurality of inclined surfaces.

Further, since the graduation plate is provided around the rotating body, the horizontal surface of the level for the inclined surface is brought into contact with the reference inclined surface, and the rotating body is rotated so that the bubbles in the bubble tube are centered in the bubble tube. After fixing the rotating body at the position where it comes in, apply this level to the other inclined surface, and if the bubble moves to the left or right, rotate the rotating body slightly so that the bubble comes to the center and adjust it. By confirming the rotation angle with the numbers on the scale, it is possible to accurately check how much the displacement is relative to the reference inclined surface.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment according to the present invention.

[Explanation of symbols]

 1 Level for inclined surface 2 Main unit 3 Rotating body 9 Scale board

Claims (2)

[Claims] 1. A spirit level for an inclined surface, wherein a rotary body is rotatably provided at a predetermined position of a base body, and a bubble tube for indicating a horizontal state by bubbles is provided on the rotary body. 2. A rotating body is rotatably provided at a predetermined position of the table body, and the rotating body can be fixed to the table body at an arbitrary rotation angle position. A level gauge for an inclined surface, characterized in that a bubble tube as shown is provided, a scale plate is arranged around the rotating body, and the scale plate is fixed to the base body.