JP2000088570A - Level - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an accurate error-free level by applying the idea of level gauge. SOLUTION: A containing hole 53 is made in a transparent rectangular prism base 51. The containing hole 53 is a loop-like hole extending along the outer circumference of the base 51 and contains liquid 51 therein. Reference lines 47, 48, 49 are described on the base 51. When the measuring plane of the base 51 is correctly horizontal or vertical, two liquid level in the containing hole 53 have equal height with respect to the reference lines 47, 48, 49.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a level for measuring horizontality or verticality.

[0002]

2. Description of the Related Art In a construction site or the like, for example, when an interior of a building is constructed, it is necessary to check a horizontal standard. For example, draw a horizontal reference line to level the joints when applying tiles, check the horizontal reference to align the shelves horizontally when installing the middle shelf or upper shelf in a closet, provide a window in the room In such cases, there are various situations in which the horizontal reference must be confirmed, such as setting the upper and lower frames of the window to be exactly horizontal.

[0003] In addition to interior work, for example, when a shutter device is attached to the entrance of a garage, a door pocket for winding the shutter is arranged above the entrance, but this door pocket must be arranged horizontally. Therefore, it is necessary to check the horizontal reference so that the left and right mounting positions of the door pocket are at the same height. In the case of ALC or RC building interior work, a horizontal reference mark is placed at a height of, for example, 1 m from the floor base, the floor is lowered by several cm from the reference, and the floor is raised by several cm. It is necessary to accurately set the horizontal reference such as forming

[0004] Usually, when performing the foundation work of a building, the levelness of the building foundation is measured by using a surveying device called a level. There is a disadvantage that it is difficult to use in a narrow place. For this reason, a level gauge as shown in FIG. Briefly described with reference to FIG. 5, water is put into a bucket-shaped container 1 and water is taken out from a pipe 2 connected below the container 1.
Then, the water level at the distal end of the pipe 2 becomes equal to the water level in the container 1, so that two horizontal reference positions can be set by this device. For example, if you are constructing a room in a house where the building has been raised and you want to install windows on two sides of a room, hang the container 1 on one pillar and hold the end of the pipe 2 Moving to the other corners and other pillars forming walls, etc., and when the water level in the pipe 2 is stable, if the water level is marked along the water level, a plurality of columns constituting the room will have the same height. You can fill in the horizontal reference.

[0005]

By the way, a level is known as a tool for measuring horizontality and verticality, and is widely used. In general, a level has a configuration in which a short curved glass tube is attached to a rectangular parallelepiped base. Alcohol and ether are sealed inside the glass tube leaving one small bubble. When the base is horizontal, the air bubbles are centered on the glass tube.

However, when the conventional level is used for a long period of time or when an impact such as dropping the level is given, the mounting between the base and the curved glass tube is displaced, and the level is incorrect. There was a drawback that it did not show horizontal. Therefore, an object of the present invention is to provide an accurate level without deviation by applying the idea of a level gauge.
The invention also provides accurate horizontal and / or long-term use.
Another object is to provide a level indicating vertical. Another object of the present invention is to provide an accurate level that can be manufactured simply and at low cost.

[0007]

According to the first aspect of the present invention,
A base having a rectangular parallelepiped shape, at least one surface of which is a measurement plane, a storage hole formed to extend along the outer periphery of the base, and liquid and air stored in the storage hole. The liquid and the air in the receiving hole are divided into two regions, and when the measurement plane of the base is brought into contact with the object to be measured in order to measure the horizontality or the verticality, the liquid and the air are divided into two. The level is characterized in that the two boundaries are made visible.

According to a second aspect of the present invention, there is provided a level according to the first aspect, wherein the liquid is an antifreeze. The conventional level has a structure in which a glass tube is attached to the base in a short, slightly curved manner. Alcohol and ether are sealed in the glass tube and contain air bubbles. The horizontal or vertical is measured by the bubble coming to the center of the glass tube.

However, in the case of this device, if the mounting position of the glass tube mounted on the base is slightly deviated, the positional relationship between the position of the air bubble in the glass tube and the measurement surface is shifted.
There was a drawback that the correct horizontal and vertical could not be confirmed.
On the other hand, according to the configuration described above, when the measurement plane of the base is correctly horizontal or vertical, the two liquid levels in the accommodation holes provided in the base are equal to the reference line. To the height. Regardless of the position of the receiving hole with respect to the base, if the measuring plane of the base is horizontal or vertical, regardless of the position, the two liquid levels with respect to the reference line marked on the base. Are equal in height. Therefore, it is possible to provide an accurate level without any deviation even when used for a long time.

[0010] In the above configuration, if an antifreeze is used as the liquid to be filled in the storage hole, the liquid can be made inexpensively, and the liquid does not freeze even in winter, which is preferable for use in a construction site or the like.
However, the liquid is not limited to the antifreeze, but may be alcohol, ether, or the like. Alternatively, the liquid may be colored to make it easier to check the liquid level.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an illustrative view of a level gauge utilizing the idea of the present invention. The level gauge 10 has a tube 11 made of a flexible resin such as transparent vinyl chloride. Both ends of the tube 11 are connected and communicated, and are formed in a loop shape. Loop tube 1
The length of 1 may be, for example, 1 to 2 m, or 2 to 3 m. The length of the pipe 11 is appropriately determined according to the size of the building site where the level gauge 10 is used. The diameter of the pipe 11 is, for example, 1-2 c.
m is convenient for use. If the pipe 11 is too thick, it becomes difficult to handle it. Conversely, if the pipe 11 is too thin, the water in it becomes difficult to move.

The pipe 11 is filled with water 12 in an amount of about half in a length direction thereof. The inside of the pipe 11 not containing the water 12 is an air area 13 containing air.
Therefore, by dividing the inside of the pipe 11 into a water area 12 filled with water and an air area 13 filled with air, the pipe 1
1 has two water surfaces 14 and 15. And the water surface 1
The water surfaces 14 and 15 have the same height because the water surfaces 4 and 15 are communicated with each other through the air region 13 in the pipe 11.

This level gauge 10 is used to write a horizontal reference having the same height at two distant places at a construction site or the like using two water surfaces 14 and 15 having the same height. is there. In use, for example, two workers hold both sides of the level gauge 10 (the left and right sides in FIG. 1), and attach their grips to a pillar or the like on which a horizontal reference is to be written. Then, the water surfaces 14, 15 in the pipe 11 are balanced to the same height. In this case, since the water surfaces 14 and 15 are connected by the air region 13 as described above and are not connected to the outside air, the swing of the water surfaces 14 and 15 is stopped smoothly, and the water surfaces 14 and 15 have the same height. To balance.
Therefore, the two workers may write the horizontal reference on a pillar or the like.

The level gauge 10 also includes a magnet 1
A locking tool 17 including the hook 6 and a locking tool 19 including the hook 18 may be provided. Each of the fasteners 17 and 19 is a tube 11
May be fixed at any position. Such locking device 1
With the provision of 7 or 19, the tube 11 can be locked to a column or the like for writing a horizontal reference. Thus, there is an advantage that even one worker can easily use the level gauge 10.

Further, when the length of the tube 11 is long, for example, 5 to 6 m, it is easy to handle by locking a part of the tube 11 at a high position with the locking tool 17 or 19. There is also. In this level gauge 10, the pipe 1
The water 12 contained in 1 may be colored red or blue, for example. Then, the boundary between the colored water and the air region 13 becomes clear, and the water surfaces 14 and 15 become easy to see.

In the above description, the liquid to be put into the tube 11 is described as the water 12, but instead of the water 12, alcohol, ether, or the like may be sealed. The pipe 11
Any material may be used as long as it is not transparent and the inside can be seen. FIG. 2 is an illustrative view showing a configuration of another level gauge 20 utilizing the idea of the present invention.
The level gauge 20 has two straight measuring tubes 2.
There are a first connection pipe 23 that connects one end of each of the two measurement pipes 21 and 22 to each other, and a second connection pipe 24 that connects each other end of each of the two measurement pipes to each other. are doing. The measurement tubes 21 and 22 are made of a transparent resin such as polypropylene, for example, and are made of a material that does not bend. On the other hand, the first connecting pipe 23 and the second connecting pipe 24 are both flexible resin pipes such as vinyl chloride, and are made of opaque pipes in this embodiment. Of course, it may be a transparent tube. Further, the first connection pipe 23 and the second connection pipe 24 are bellows-shaped pipes.

The measuring tubes 21 and 22 and the first connecting tube 2
In the loop-shaped pipe formed by the third and second connection pipes 24, water 24 is filled into about half of the entire length of the pipe, and the rest is an air area 26. This level gauge 20
Are measuring tubes 21 and 22 made of straight hard resin.
Is provided, there is an advantage that when the water surfaces 27 and 28 come to this portion, the water surfaces 27 and 28 can be easily confirmed and used. Further, by forming the connecting pipes 23 and 24 in a bellows form, the portability is improved, and the connecting pipes 24 and 24 are easy to carry.
There is also an advantage that bubbles and the like are hardly generated in the water in the inside.

The level gauge 20 shown in FIG. 2 may be provided with the locking members 17 and 19 as described with reference to FIG. For example, if the stoppers 29 including, for example, magnets are provided at the upper and lower ends of the measuring tubes 21 and 22, there is an advantage that the measuring tubes 21 and 22 can be easily fixed to a steel frame or the like in the vertical direction. . FIG. 3 is a front view showing a configuration of a level according to the embodiment of the present invention.
FIG. 4 is a longitudinal sectional view along AA in FIG.

Referring to FIG. 3 and FIG. 4, the level 30 is provided with a substantially rectangular parallelepiped base 31.
A mounting groove 32 is formed on the outer periphery in the longitudinal direction of the base 31. A loop-shaped transparent tube 3 is provided in the concave groove 32.
3 are arranged. The tube 33 may be made of a soft resin such as vinyl chloride, or may be a hard tube such as glass. A liquid 34 such as water, alcohol, or ether is sealed in the tube 33. Liquid 34 is pipe 33
Is filled in an amount that occupies about half of the length, and the rest is an air space 35.

The base 31 has a top surface 36, a bottom surface 37, a right side surface 38, and a left side surface 39 serving as measurement planes.
By contacting any one of the surfaces 36 to 39 with the measured object, it is checked whether the measured object is horizontal or vertical. On the front surface 40 of the base 31, a horizontally long window 41 is formed along the upper edge. Through this window 41, a part of the tube 33 arranged in the groove 32 can be seen.
Similarly, a front side 40 is formed with a horizontally long window 42 substantially in the center along the lower edge, a vertically long window 43 along the right side edge, and a vertically long window 44 along the left side edge.
The tube 33 inside is also visible from 44.

A reference line 47 parallel to the top surface 36 and the bottom surface 37 is drawn on the front surface 40 of the base 31. Alternatively, a plurality of reference lines 48,
49 may be shown. Similarly, reference lines 47, 48, and 49 are described in association with the windows 41, 42. Therefore, when the bottom surface 37 of the base 31 is placed on, for example, a horizontal table, liquid levels 45 and 46 appear in the tube 33 which can be seen from the windows 43 and 44. And these liquid levels 45,
If the heights of 46 are equal, it can be measured that the table surface on which the base 31 is placed is correctly horizontal.

That is, the two water surfaces 45 and 46 in the pipe 33
However, if the heights are equal to certain reference lines 47, 48, and 49, the measured surface along the base 31 is correctly horizontal. However, reference line 4
If the positions of the water surface 45 and the water surface 46 are different with respect to 7, 48, and 49, the base 31 is not along the correct horizontal surface.

When measuring in the vertical direction, the windows 41 and 4
Water surfaces 45, 46 appear in a tube 33 visible from the second. In the level 30 described above, the mounting position of the pipe 33 with respect to the base 31 is slightly shifted, or
The tube 33 may be slightly loose, regardless of
Depending on whether the liquid levels 45, 46 in the inside are at the same position with respect to the reference lines 47, 48, 49, horizontal or vertical can be correctly confirmed.

FIG. 6 is a front view showing the structure of a level according to another embodiment of the present invention, and FIG.
FIG. Level 5 shown in FIGS. 6 and 7
The feature of O is that the base 51 is formed of, for example, a transparent acrylic resin, and the base 50 itself has an accommodation hole 53 for accommodating a liquid. That is, FIG.
4, the base 31 and the loop-shaped tube 33 are not formed separately from each other as in the level 30 described with reference to FIG. 4, but correspond to the loop-shaped tube 33 directly on the base 51. The receiving hole 53 is formed.

More specifically, a substantially rectangular parallelepiped base 51 is made of a transparent material such as an acrylic resin. Then, an accommodation hole 53 is formed in the base 51 along the outer peripheral surface in the longitudinal direction. The accommodation hole 53 extends along the outer periphery of the base 51 and is, for example, a circular hole having a circular cross-section. The cross-sectional shape of the hole 53 may be any shape. The accommodation hole 53 can be formed, for example, as follows.

That is, holes 53U and 53D are drilled from the right side along the upper and lower longitudinal surfaces of the base 51. Holes 53R and 53L extending vertically along the left and right side surfaces of the base 51 are drilled from the upper surface, for example. The four holes 53U, 53L, 53D, 53R are formed so as to communicate with each other. Thereafter, the other openings 54L, 54D and 54R are closed except for the opening 53O of the hole 53U, for example. And from the opening 53O to the accommodation hole 53,
That is, the liquid 51 such as water, antifreeze, alcohol, or ether is put into the holes 53U, 53L, 53D, and 53R, and the opening 53O is closed when the liquid 51 is about half filled with the liquid 51.

Reference lines 47, 48, 49, etc. are shown on the base 51, as in the embodiment of FIGS.
Then, with the upper surface 36, the bottom surface 37, the right side surface 38, or the left side surface 39, which is the measurement plane, in contact with the object to be measured, the heights of the two liquid surfaces 45, 46 in the accommodation hole 53 are matched. Can be determined. FIG. 8 shows FIGS. 6 and 7
FIG. 7 is a diagram for explaining another method of making the level having the configuration shown in FIG.
As shown in FIG. 8, the base 51 may be composed of two members, a first base 61 and a second base 62, and the two may be bonded to form the completed base 51. in this case,
The first base 61 and the second base 62 are preferably both made of a transparent material, for example, acrylic resin, but one base can be made of an opaque material.

Further, the first base 61 and the second base 62 may be formed in a symmetrical shape and may be bonded to each other. Alternatively, as shown in FIG. An accommodation hole 53 may be formed along the outer periphery of the base, and the second base 62 may have a flat plate configuration. An appropriate molding method may be adopted in consideration of the resin molding technique or the like in terms of how to make it. In short, a level having the structure described in the claims may be made.

The present invention is not limited to the embodiment described above, and various changes can be made within the scope of the claims.

[0030]

According to the present invention, it is possible to provide a level capable of confirming correct horizontal or vertical without deviation.

[Brief description of the drawings]

FIG. 1 is an illustrative view of a level gauge utilizing the concept of the present invention.

FIG. 2 is an illustrative view of a level gauge using the concept of the present invention;

FIG. 3 is a front view showing a configuration of a level according to the embodiment of the present invention.

FIG. 4 is a longitudinal sectional view along AA in FIG.

FIG. 5 is an illustrative view showing one example of a conventional level gauge used in a construction site or the like;

FIG. 6 is a front view showing a configuration of a level according to another embodiment of the present invention.

FIG. 7 is a longitudinal sectional view along BB in FIG. 6;

FIG. 8 is an illustrative perspective view for explaining a method for producing a level according to another embodiment of the present invention.

[Explanation of symbols]

 10, 20 Level gauge 30, 50 Leveler 31, 51 Base 32 Groove 34 Liquid 45, 46 Liquid level 53 Storage hole

Claims (2)

[Claims] 1. A base having a rectangular parallelepiped shape, at least one surface of which is a measurement plane, a storage hole formed to extend along the outer periphery of the base, and a liquid stored in the storage hole. Liquid and air in the receiving hole are divided into two areas, and when the measuring plane of the base is brought into contact with the object to be measured to measure the horizontality or the verticality In addition, the bisected 2
A level wherein two boundaries are made visible. 2. The level according to claim 1, wherein the liquid is an antifreeze.