JPH084567Y2 - Level - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a level that is easy to adjust and has high accuracy.

[Conventional technology]

Generally, a spirit level is formed by enclosing a liquid containing air bubbles in a cylindrical closed container in which an indicator is appropriately formed on the upper surface of the container,
In many cases, the level is set when the bubble is located at the center of the index by placing the level on a horizontal surface.

[Problems to be solved by the device]

However, such level air cannot move bubbles finely and smoothly due to the surface tension of the liquid, the adhesive resistance between the liquid and the container, etc., and it is difficult to obtain the level state in a strict sense. If the bubbles are not in the level state apart from the center of the index, even if you try to adjust the level by moving the object on which the level is placed, the movement and behavior of the bubbles are not smooth and stable. It is difficult to do.

SUMMARY OF THE INVENTION In view of the above points, the present invention has been made with the object of developing a spirit level with a simple structure that is capable of highly accurately detecting a level condition and making adjustments to bring it into the level condition.

[Means for solving the problem]

The configuration of the present invention made to solve the above-mentioned problem is as follows.
The entire lower surface of the canopy attached to the container having a flat circular shape or an appropriately polygonal shape is formed into a downward convex spherical surface, while the entire upper surface of the container is formed into a concave spherical surface having the same curvature as the spherical surface and the upper surface of the container. On the side, a passage passing through the center of the concave spherical surface is provided as a recess, and a liquid having a different color from the gas is put into the passage together with the gas in the passage, and the canopy is attached to the container so that the liquid is stored in the container. At the center, the air is made visible on the outer peripheral side of the container from the upper surface side of the container.

[Action]

The upper part of the passage, which is concave in the container with the concave spherical surface, is covered with the downward convex spherical surface by the canopy, so that the liquid is located in the center of the container on the passage and the liquid is not level. Since it moves in each state, it is easy to observe level and non-level states.

〔Example〕

 Next, an embodiment of the present invention will be described with reference to the drawings.

1 is a front sectional view of an example of the spirit level of the present invention, and FIG. 2 is a plan view of the spirit level of FIG.

In FIGS. 1 and 2, 1 is a concave spherical surface having a gentle upper surface 2
The container body 3X, 3Y formed in the shape of a circular shallow dish is a concave spherical surface 2 of the container body 1 which is two passages formed so as to be orthogonal to each other on the diameter thereof.

Reference numeral 4 denotes a translucent canopy member that is capped on the upper surface of the container body 1, and is entirely formed as a downward convex spherical surface 5 that matches the concave spherical surface 2 of the container body 1.

Then, in the grooves 3X, 3Y of the container body 1, for example, liquid Li such as water colored with an appropriate color together with the air Ai is put,
By attaching the canopy member 4, an example of the spirit level of the present invention is formed.

When this level is placed on a flat surface and the canopy member 4 is observed from above, the liquid Li in the passages 3X, 3Y has a portion in contact with the convex spherical surface 5 of the canopy member 4 in the passages 3X, 3Y.
It appears dark at the intersection of 3X and 3Y, and the air Ai is in contact with the convex spherical surface 5 on the outer peripheral side of the container in the passages 3X and 3Y.
Appears to be light in color or barely visible. Therefore, if the plane is on a horizontal plane, the liquid Li is in a level state, and the liquid Li passes through the canopy member 4 into a substantially even cross shape when viewed from the top as shown in FIG. Looks like

However, if the plane on which the level is placed is tilted, for example, in the direction in which the right side of FIG.
Is displaced to the right side of the figure, the shape of the liquid Li having the above-mentioned uniform cross shape that is visible through the canopy member 4 is deformed, so that it is possible to immediately visually confirm that it is in a non-level state. .

In the above embodiment, the passages 3X, 3Y are formed so as to be orthogonal to each other on the diameter of the container body 1, but in the present invention,
Any one of the passages 3X and 3Y may be provided, and the container body 1
With respect to the center of the, the passages may be radially formed at appropriate intervals such as 120 degrees.

[Effect of device]

The present invention is as described above, wherein the entire lower surface of the canopy mounted on the container body in which the gas and liquid in the level are enclosed is formed into a downward convex spherical surface, while the entire upper surface of the container has the same curvature as the spherical surface. Is formed into a concave spherical surface of, and a passage passing through the center of the concave spherical surface is provided on the upper surface side of the container,
A liquid of a color different from that of the gas is appropriately enclosed together with the gas in the passage of the container so that the gas can be seen on the outer peripheral side of the container and the liquid can be seen from the upper surface of the container at the center of the container. The liquid appears in the shape of a cross in the center of the container, and in a non-leveled state, the liquid appears in a shape close to the center of the container in a shape that collapses the cross, so it is easy to visually confirm the level and non-leveled states. be able to.

Further, when the non-level state is adjusted to the level state, when the level state is reached, the liquid and gas are displaced on the passage, so that the degree of level adjustment can be visually recognized quickly and easily.

Therefore, the present invention is extremely useful as a spirit level with a simple structure and high accuracy.

[Brief description of drawings]

FIG. 1 is a front sectional view of an example of the spirit level of the present invention, and FIG.
It is a top view of the electronic level of the figure. 1 ... container main body, 2 ... bottom concave spherical surface, 3X, 3Y ... passage, 4 ... canopy member, 5 ... canopy member downward convex spherical surface,
Li ... Liquid, Ai ... Gas

Claims (2)

[Scope of utility model registration request] 1. A canopy mounted on a container having a plane circular shape or a polygonal shape is formed on the entire lower surface to be a convex spherical surface facing downward, while the entire upper surface of the container is formed to be a concave spherical surface having the same curvature as the spherical surface. By forming a passage through the center of the concave spherical surface on the upper surface side of the container and applying the canopy to the container by putting a liquid having a different color from the gas together with gas into the passage, A spirit level, wherein the liquid is visible in the center of the container and the air is visible from the upper surface side of the container on the outer peripheral side of the container. 2. The spirit level according to claim 1, wherein the passages are formed on the diameter of the container in a perpendicular or radial direction.