JP2000131062A - Level and arranging method for pipe material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a level superior in practicality and workability capable of exhibiting left, right and center line positions by simply mounting on a pipe material by making a recess extending in the breadthwise direction and opening to the opposite side faces of a case in a reference face and disposing a measuring part at the left/right center line position of the recess. SOLUTION: The level 31 has a horizontalness measuring section 2, and a reference face 4 on the bottom of a case 1 abutting against a measuring face 3. A recess 5 extending in the breadthwise direction and opening to the opposite side faces of the case 1 I made in the reference face 4 and a measuring part 2 is disposed at the left/ right center line positions thereof. A bubble tube 2 having a bubble 8 in he water is employed as the measuring section 2 and a reference part 6 indicating the central position of the bubble 8 is disposed at the left/right object positions of the recess 5. Gradations 7 are provided at a specified interval (e.g. 1 mm unit) on the left and right of the reference part 6. The recess 5 of the level 31 is fitted over a tube material 32 and made to finely move along the outer circumferential surface thereof. When the bubble 8 in the bubble tube 2 is brought into a state indicating horizontal reference face 4, the bubble 8 is located at the left/right center line position of the tube material 32.

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 the levelness of a measuring surface by a measuring unit such as a bubble tube and a method for disposing a tube.

[0002]

2. Description of the Related Art Conventionally, a level provided with various functions has been proposed.

[0003] In the case where a pipe is connected to a pipe over a long distance, such as a drain, the pipe is disposed (the connection source may be a joint or a manhole). It is necessary to arrange the tubing at the exact left and right positions. This is because, if the left and right positions of the pipes are shifted, if a number of pipes are connected, an error occurs in the total extension of the connected pipes.

[0004] In this regard, in the conventional piping work, for example, a level is provided in a pipe material, and the left and right center positions of the pipe material are determined by using bubbles of a bubble tube provided at the left and right center of the level as a mark. Further, a hanging pendulum is hung from a thread provided as an installation reference line on the pipe material, and the pipe material is set so that the installation reference line indicated by the down pendulum coincides with the bubbles in the bubble tube of the level. A method of arranging the pipe material by finely moving it, or using a measuring instrument such as transit or theodolite used for civil engineering surveying, etc. A method of finely moving the tube material so as to match them and disposing the tube material is adopted.

However, the conventional piping method has the following problems.

[0006] The bubble tube of the spirit level is originally used to measure the level and the degree of inclination. Even though the bubble tube is provided at the center on the left and right of the level, the bubble tube is not accurately positioned. It is not clear whether or not the bubble in the bubble tube indicates the exact left and right center, not the right and left center. Therefore, it is not known whether or not the pipes provided are exactly along the reference line, and there is a possibility that an error may occur in the total extension of the pipes to be connected.

As a matter of course, the above piping method can be adopted only for a pipe having a diameter in which a level can be disposed inside.

The present invention has been made to solve the above problems, and has a practicality and a workability level capable of accurately indicating the right and left center positions of a pipe simply by being put on the pipe, and a method of positioning the pipe. Is provided.

[0009]

The gist of the present invention will be described with reference to the accompanying drawings.

[0010] A level 31 provided with a measuring unit 2 for measuring the levelness on a body 1 and a reference surface 4 abutting on a measurement surface 3 on the bottom surface of the body 1. A concave portion 5 is provided which is extended to the side of the body 1 and is opened on both side surfaces of the body 1, and the measuring section 2 is provided at a center line position of the concave portion 5 in the left-right direction.

Further, in the spirit level according to the first aspect, the concave portion 5 is set to be symmetrical when viewed from the side of the body 1.

Further, in the level according to any one of claims 1 and 2, the concave portion 5 is provided at a substantially right and left center portion of the body 1 according to the level.

[0013] Further, the level according to any one of claims 1 to 3, wherein a bubble tube 2 is employed as the measuring section 2.

Further, in the level according to the fourth aspect, the center position of the bubble 8 in the bubble tube 2 when the measuring surface 3 is horizontal is shown at the left and right center line positions of the concave portion 5 in the bubble tube 2. The present invention relates to a level wherein a reference portion 6 is provided.

The level according to claim 5, wherein scales 7 are provided on the left and right sides of the reference portion 6 in the bubble tube 2 at predetermined intervals from the reference portion 6. Pertains to vessels.

Further, in the spirit level according to any one of claims 1 to 6, the instrument body 1 is provided with a central member 10 having the measuring portion 2 and the concave portion 5, and removably provided on the left and right sides of the central member 10. And a left and right member 11, 11 'having a reference surface 4.

Also, in the method of disposing the pipe material, the first pipe material is positioned and disposed by an appropriate means, and when the other pipe material 32 is disposed at the distal end of the first pipe material, the other pipe material 32 is disposed. The level of the level 31 according to any one of claims 1 to 7, wherein the recess 5 of the level 31 is fitted to another tube 32 and the level is provided.
The tube 31 is disposed so as to be orthogonal to the other tube 32, the left and right center positions of the other tube 32 are confirmed by the measuring unit 2 of the level 31, and the center position of the other tube 32 is determined in advance. The present invention relates to a method of arranging a tube material, characterized by slightly moving another tube material 32 so as to match the arranged reference line.

Further, in the method for arranging a pipe according to the eighth aspect, when positioning the first pipe, the first to seventh aspects may be used.
The level according to any one of claims 1 to 3, wherein the recess 5 of the level 31 is fitted to the first tube and the level 31 is orthogonal to the first tube. The left and right center positions of the first tube material are confirmed by the measuring unit 2 of the vessel 31, and the first tube material is slightly moved so as to match this center position with a predetermined arrangement reference line. It is related to the arrangement method.

Also, in the method of disposing a pipe, the first pipe is positioned and disposed by an appropriate means, and when the other pipe 32 is disposed at the tip of the pipe, the first pipe is placed near the first pipe. Install a surveying instrument 33 such as transit or theodolite,
7. The level according to claim 6, wherein a reference line for arranging the other tube material (32) is set by the surveying instrument (33).
31 is disposed such that the recess 5 of the level 31 is fitted to another tube 32 and the level 31 is orthogonal to the other tube 32;
The left and right center positions of the other tube materials 32 are confirmed by the bubbles 8 of the bubble tube 2 of the level 31, and the deviation between this center position and the arrangement reference line is confirmed by the scale 7 provided on the bubble tube 2. The other tube material 32 is finely moved by this known
In accordance with the arrangement reference line.

[0020]

Operation and effect of the present invention For example, a level 31 employing a bubble tube 2 is used as the measuring section 2, and this level 31 is used as a tube material 32.
And the concave portion 5 of the level 31 is brought into contact with the tube 32. The bubbles 8 of the bubble tube 2 of the level 31
When the reference surface 4 is in a state indicating that it is horizontal, the bubble 8 of the bubble tube 2 is necessarily located at the center line position of the left and right of the tube material 32.

Therefore, for example, when the pipe 32 for sewage is provided, since the center of the right and left of the pipe 31 is known by the position of the bubble 8 of the level 31, the central position of the left and right of the pipe 31 is determined by the thread 9 or the like. By finely adjusting the length of the pipe 31 so as to match the predetermined reference line by a surveying instrument 33 such as a transit, the pipe 31 can be easily and reliably disposed on the accurate reference line. The level 31 can normally be used as a normal level.

Since the present invention is constructed as described above, the levelness can be confirmed by the measuring unit like an ordinary level, and the right and left center positions of the tube can be determined by the measuring unit simply by placing the tube on the tube. This is a method of arranging a spirit level and a pipe with excellent practicality and workability that can be easily and accurately known.

[0023]

1 to 3 show a first embodiment of the present invention.
FIG. 4 illustrates the second embodiment, and FIG. 5 illustrates the third embodiment, which will be described below.

The first embodiment is a level 31 provided with a measuring unit 2 for measuring the level of the body 1 and a reference surface 4 abutting on the measuring surface 3 on the bottom surface of the body 1, A concave portion 5 is provided on the reference surface 4 and extends in the width direction and is opened on both side surfaces of the container 1, and the measuring section 2 is provided at the center line of the concave portion 5 on the left and right sides.

The concave portion 5 is set to be symmetrical when viewed from the side of the body 1. The illustrated portion has a first inclined surface 12 slightly inwardly inclined from the reference surface 4 and a first inclined surface 12. It has a second inclined surface 13 inclined inward in comparison with the left and right. Note that, even if the concave portion 5 has a U-shape or a configuration in which the concave portion 5 is cut out in a mountain shape, the same operation and effect as those illustrated can be exerted.

The recess 5 is provided substantially at the center of the body 1 on the left and right sides.

As the measuring section 2, a bubble tube 2 provided with bubbles 8 in water is employed. In addition, other than the bubble tube 2, for example, a measuring unit having a configuration in which a float is provided in water can be adopted.

In the bubble tube 2, a reference portion 6 is provided at the left and right center line position of the concave portion 5 to indicate the center position of the bubble 8 in the bubble tube 2 when the measurement surface 3 is horizontal. . The reference portion 6 does not need to be located at the center of the bubble tube 2, but may be located at the center line between the left and right of the recess 5.

A predetermined distance (for example, in units of 1 mm) from the reference portion 6 is provided on the left and right of the reference portion 6 in the bubble tube 2.
And a scale 7 is provided.

The reference surface 4 is provided with a concave groove 14 extending in the longitudinal direction and opening at both ends of the body 1. When measuring the gradient (gradient) of the tube 32 by abutting parallel to the
The abutment between the reference surface 4 of the body 1 and the tube member 32 is stabilized by the contact between the left and right side edges of the tube 14 and the tube member 32.

A shock absorbing member 15 made of synthetic resin is provided in the vicinity of the left and right ends of the container 1 and in the vicinity of the measuring section 2, and the shock absorbing member 15 allows the container 1 to be accidentally dropped. The setting is made so as to prevent the accuracy of the reference surface 4 of the body 1 and the measuring unit 2 from being damaged and the measuring unit 2 from being damaged.

In the figure, reference numeral 16 denotes a vertical measurement bubble tube used when measuring the verticality using the container 1.

Hereinafter, a method of disposing a pipe for sewage will be described in detail as an example of a method of disposing a pipe 32 having a circular shape in cross section using the level 31 of the first embodiment.

A cut-out portion 17 provided on the ground by known means
The thread 9 is disposed on the upper side, and a down swing 34 is hung from the thread 9 to set a reference line for disposing the pipe 32. Also, tubing 32
First, the base end is connected to a manhole or an existing pipe, and the base end is first positioned.

Subsequently, a level 31 is arranged at the tip of the tube 31 so as to be orthogonal to the tube 32, and the recess 5 of the level 31 is fitted with the tube 32.

Subsequently, the level 31 is slightly moved along the outer peripheral surface of the tube 32 so that the bubbles 8 in the bubble tube 2 of the level 31 indicate that the reference surface 4 of the level 31 is horizontal. I do. When this operation is performed, the bubbles 8 in the bubble tube 2 of the level 31 are removed from the tube material 32.
The reference part 6 of the bubble tube 2 is
The position of the left and right center lines of 32 will surely be shown (see FIG. 2).

Therefore, the pipe member 32 is adjusted so that the arrangement reference line indicated by the plunger 34 coincides with the reference portion 6 of the bubble tube 2.
Is slightly moved to the left and right, the pipe member 32 is disposed at an accurate left and right position with respect to the intended arrangement reference line.

Subsequently, the base end of the other tube material of the tube material 32 is connected, and the distal end of the other tube material is arranged on an accurate arrangement reference line by the arrangement method using the level 31. By repeating the operation, the tube material can be
32 can be arranged at the exact left and right positions.

Since the first embodiment is configured as described above,
The bubble tube 2 allows the level to be ascertained, and the bubble tube 2 provides a level with excellent practicality and workability in which the right and left central positions of the tube material 32 can be easily and accurately known.

Further, since the concave portion 5 is set to be symmetrical when viewed from the side of the body 1, the first inclined portion 12 or the second inclined portion 12 with respect to the center position of the concave portion 5 can be formed even for pipes 32 having different diameters. A level that is excellent in practicability and versatility in which the equidistant portion of the inclined portion 13 can abut on the pipe 32.

Further, since the concave portion 5 is provided substantially at the center of the left and right of the body 1, the concave portion 5 of the body 1 is fitted to the tube 32 and the body 1 is disposed orthogonal to the tube 32. In this case, the vessel 1 is stably disposed on the pipe 32 in a well-balanced manner, and the level becomes more excellent in practicality and stability.

Since the first inclined portion 12 and the second inclined portion 13 forming the concave portion 5 are inclined slightly inward from the reference surface 4, the boundary between the concave portion 5 and the reference surface 4 is formed at an obtuse angle. When the boundary portion abuts against the tube 32, the vessel 1 is stabilized on the tube 32, and when the tube 32 abuts on the first inclined portion 12 or the second inclined portion 13, Since the inclined portion 12 or the second inclined portion 13 has an inclination close to the outer peripheral shape of the tube 32, the level 1 is similarly stabilized on the tube 32, which is more practical.

Further, since the bubble tube 2 used as an inexpensive and general measuring unit is adopted as the measuring unit 2, the manufacturing cost is low and there is no sense of incongruity in the usual method of measuring the levelness. It is a level with excellent practicality, workability, and low cost.

Further, since the bubble tube 2 is provided with the reference portion 6, when the tube 32 is made to conform to the arrangement reference line indicated by the swing 34, the reference portion 6 is used instead of the vague reference such as the bubble 8. By finely moving the plunger 34 so that it coincides with the plunger 34, the pipe 32 can be arranged at extremely accurate left and right positions, resulting in a more practical level.

Further, since the bubble tube 2 is provided with the scale 7, it is possible to easily know how much the tube member 32 should be moved when the tube member 32 is finely moved. Container. It should be noted that the scale 7 particularly exerts the function and effect in the second embodiment described later.

The second embodiment shown in FIG. 4 is another example of the method of disposing pipes using the level 31 of the first embodiment, and is an optical arrangement using a transit 33 without using the line thread 9. An installation reference line is set, and the pipe 32 is matched with the installation reference line. Note that a surveying instrument for civil engineering surveying, such as theodolite, may be used instead of the transit 33. Further, in the second embodiment, the operator using the transit 33 and the operator slightly moving the
Perform the installation work.

A cut-out portion 17 provided on the ground by known means
The pipe material 32 is provided, and connected to the base side manhole or the existing pipe material of the pipe material 32, and the base end portion is first positioned, and further,
The transit 33 is disposed near the base end of the pipe member 32 or at a desired position of the reference line for disposing the pipe member 32.

Subsequently, as in the first embodiment, a level 31 is disposed at the tip of the tube 32 so as to be orthogonal to the tube 32, and the recess 5 of the level 31 is covered with the tube 32. Then, the reference portion 6 of the bubble tube 2 surely indicates the position of the center line between the left and right of the tube 32.

Subsequently, except for the transit 33, the deviation between the optical arrangement reference line indicated by the transit 33 and the reference portion 6 of the bubble tube 2 is accurately determined by the scale 7 of the bubble tube 2 seen from the transit 33. For example, when the scale 7 is provided in units of 1 mm and the scale 7 is displaced from the reference line for distributing the three scales 7 to the worker who uses the transit 33 to slightly move the pipe 32, "3 mm
Give instructions such as "Left".

Subsequently, the worker arranging the tubing 32 finely moves the tubing 32 in accordance with the concretely digitized instruction, and aligns the left and right center positions of the tubing 32 with the arranging reference line indicated by the transit 33. .

In the second embodiment, as described above, the work of arranging the warp yarn 9 does not have to be performed, and even if the tubing 32 is to be arranged over a long distance, the tubing 32 can be easily arranged by remote instruction. 32 can be arranged, and
The tube material 32 can be moved to an accurate position by a single fine movement according to an instruction quantified by the scale 7, thereby providing a tube material more excellent in practicality and workability.

The rest is the same as in the first embodiment.

FIG. 5 shows a third embodiment, in which a container 1 is provided with a synthetic resin central member 10 having a measuring portion 2 and a concave portion 5 and detachably provided on the left and right sides of the central member 10. Metal (aluminum) left and right members 11 and 11 'having a reference surface 4
It consists of and.

According to this configuration, for example, when the body 1 is too long to be disposed in the cutout portion 17, the left and right members 11 ・ 1
1 'is removed and used only with the central member 10, or a central member in which the shape of the concave portion 5 is changed depending on the diameter of the tube material 32 and the like.
It becomes possible to replace the damaged member and use it, or to replace only the damaged member when a part is damaged.

The measuring section 2 of the central member 10 is also
If the measuring unit 2 is configured to be detachable from the unit 10, the measuring unit 2 can be replaced with a different measuring unit 2 having a different scale 7 or the measuring unit 2 can be easily replaced when the measuring unit 2 is damaged. And it becomes even more preferable.

The rest is the same as in the third embodiment.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view of a first embodiment.

FIG. 2 is an explanatory diagram of a main part of the first embodiment.

FIG. 3 is an explanatory view of a method of disposing a pipe according to the first embodiment.

FIG. 4 is an explanatory diagram of a second embodiment.

FIG. 5 is an explanatory diagram of a third embodiment.

[Explanation of symbols]

 1 Instrument 2 Measuring part, bubble tube 3 Measuring surface 4 Reference surface 5 Recess 6 Reference portion 7 Scale 8 Bubbles 31 Level 32 Tube material 33 Surveying instrument

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[Procedure amendment]

[Submission date] December 20, 1999 (1999.12.
20)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] A method for disposing a spirit level and a pipe material

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a level for measuring the levelness of a measuring surface by a measuring unit such as a bubble tube and a method for disposing a tube.

[0002]

2. Description of the Related Art Conventionally, a level provided with various functions has been proposed.

[0003] In the case where a pipe is connected to a pipe over a long distance, such as a drain, the pipe is disposed (the connection source may be a joint or a manhole). It is necessary to arrange the tubing at the exact left and right positions. This is because, if the left and right positions of the pipes are shifted, if a number of pipes are connected, an error occurs in the total extension of the connected pipes.

[0004] In this regard, in the conventional piping work, for example, a level is provided in a pipe material, and the left and right center positions of the pipe material are determined by using bubbles of a bubble tube provided at the left and right center of the level as a mark. Further, a hanging pendulum is hung from a thread provided as an installation reference line on the pipe material, and the pipe material is set so that the installation reference line indicated by the down pendulum coincides with the bubbles in the bubble tube of the level. A method of arranging the pipe material by finely moving it, or using a measuring instrument such as transit or theodolite used for civil engineering surveying, etc. A method of finely moving the tube material so as to match them and disposing the tube material is adopted.

However, the conventional piping method has the following problems.

[0006] The bubble tube of one level is originally for measuring the horizontality and the inclination, and even though the bubble tube is provided at the center on the left and right of the level, the bubble tube is located at the center of the level. It is not clear whether the bubbles in the bubble tube indicate the exact center right and left instead of the exact center right and left. Therefore, it is not known whether or not the pipes provided are exactly along the reference line, and there is a possibility that an error may occur in the total extension of the pipes to be connected.

2 Naturally, the above-mentioned piping method can be adopted only for a pipe having a diameter in which a level can be disposed inside.

The present invention has been made to solve the above problems, and has a practicality and a workability level capable of accurately indicating the right and left center positions of a pipe simply by being put on the pipe, and a method of positioning the pipe. Is provided.

[0009]

The gist of the present invention will be described with reference to the accompanying drawings.

[0010] A level 31 provided with a measuring unit 2 for measuring the levelness on a body 1 and a reference surface 4 abutting on a measurement surface 3 on the bottom surface of the body 1. Provided on the both sides of the container body 1 are provided .
The part 5 is set to be symmetrical in the side view of the container 1,
The recess 5 is provided substantially at the center of the body 1 on the left and right sides.
The bubble tube 2 is provided at the center line position of the left and right of the concave portion 5 of
The measurement surface 3 is horizontal at the center line of the concave 5
Indicating the center position of the bubble 8 in the bubble tube 2 when
A part 6 is provided.
Is provided with a scale 7 at a predetermined interval from the reference portion 6.
The synthetic tree is located near the left and right ends of the vessel 1 and near the bubble tube 2.
A shock absorbing member 15 made of fat is provided.
And a central member 10 having a concave portion 5 and left and right of the central member 10.
Right and left members 11 which are detachably mounted on the
・ This is related to a level characterized by being composed of 11 ′ .

Also, in the method of disposing the pipe material, the first pipe material is positioned and disposed by an appropriate means, and when the other pipe material 32 is disposed at the distal end of the first pipe material, the other pipe material 32 is disposed. The level 31 according to claim 1 is disposed at the tip so that the recess 5 of the level 31 is fitted to another tube 32 and the level 31 is orthogonal to the other tube 32. The left and right center positions of the other tube material 32 are confirmed by the bubble tube 2 of the level 31, and the other tube material 32
The present invention relates to a method of arranging a tube material, characterized in that another tube material 32 is slightly moved so that the center position of the tube material coincides with a predetermined arrangement reference line.

In the method for disposing a pipe according to the second aspect, when the first pipe is positioned, the level of the level of the first level is replaced with the concave portion of the level. The level 31 is fitted to the tube and is disposed so as to be orthogonal to the first tube. The left and right center positions of the first tube are confirmed by the bubble tube 2 of the level 31. Is finely moved so as to match a predetermined arrangement reference line.

[0013] Also, in the method of disposing a pipe, the first pipe is positioned and disposed by an appropriate means, and when the other pipe 32 is disposed at the tip of the pipe, the first pipe is positioned near the first pipe. Install a surveying instrument 33 such as transit or theodolite,
2. The level according to claim 1 , wherein a reference line for arranging the other tube material is set by the surveying instrument, and further, a level is provided at a tip end of the other tube material.
31 is disposed such that the recess 5 of the level 31 is fitted to another tube 32 and the level 31 is orthogonal to the other tube 32;
The left and right center positions of the other tube materials 32 are confirmed by the bubbles 8 of the bubble tube 2 of the level 31, and the deviation between this center position and the arrangement reference line is confirmed by the scale 7 provided on the bubble tube 2. The other tube material 32 is finely moved by this known
In accordance with the arrangement reference line.

[0014]

Operation and effect of the present invention For example, a level 31 employing a bubble tube 2 is used as the measuring section 2, and this level 31 is used as a tube material 32.
And the concave portion 5 of the level 31 is brought into contact with the tube 32. The bubbles 8 of the bubble tube 2 of the level 31
When the reference surface 4 is in a state indicating that it is horizontal, the bubble 8 of the bubble tube 2 is necessarily located at the center line position of the left and right of the tube material 32.

Therefore, for example, when arranging a pipe 32 for sewage, since the center of the right and left of the pipe 31 is known by the position of the bubble 8 of the level 31, the left and right center position of the pipe 31 is determined by the thread 9 or the like. By finely moving the tube 31 so as to match a predetermined arrangement reference line with a surveying instrument 33 such as a transit, the tube 31 can be easily and reliably arranged on an accurate arrangement reference line .

The level 31 can be used as an ordinary level.

Since the present invention is constructed as described above, the levelness can be confirmed by the measuring unit like an ordinary level, and the right and left center positions of the tube can be determined by the measuring unit simply by placing the tube on the tube. This is a method of arranging a spirit level and a pipe with excellent practicality and workability that can be easily and accurately known.

[0018]

1 to 3 show a first embodiment of the present invention.
FIG. 4 illustrates the second embodiment, and FIG. 5 illustrates the third embodiment, which will be described below.

The first embodiment is a level 31 provided with a measuring unit 2 for measuring the level of the body 1 and a reference surface 4 abutting on the measuring surface 3 on the bottom surface of the body 1, A concave portion 5 is provided on the reference surface 4 and extends in the width direction and is opened on both side surfaces of the container 1, and the measuring section 2 is provided at the center line of the concave portion 5 on the left and right sides.

The concave portion 5 is set to be symmetrical when viewed from the side of the body 1, and the illustrated portion has a first inclined surface 12 inclined slightly inward from the reference surface 4 and a first inclined surface 12 It has a second inclined surface 13 inclined inward in comparison with the left and right. Note that, even if the concave portion 5 has a U-shape or a configuration in which the concave portion 5 is cut out in a mountain shape, the same operation and effect as those illustrated can be exerted.

The recess 5 is provided substantially at the center of the body 1 on the left and right sides.

As the measuring section 2, a bubble tube 2 in which bubbles 8 are provided in water is employed. In addition, other than the bubble tube 2, for example, a measuring unit having a configuration in which a float is provided in water can be adopted.

In this bubble tube 2, a reference portion 6 is provided at the center line of the left and right of the concave portion 5 to indicate the center position of the bubble 8 in the bubble tube 2 when the measurement surface 3 is horizontal. . The reference portion 6 does not need to be located at the center of the bubble tube 2, but may be located at the center line between the left and right of the recess 5.

A predetermined distance (for example, in units of 1 mm) from the reference portion 6 is provided on the left and right of the reference portion 6 in the bubble tube 2.
And a scale 7 is provided.

The reference surface 4 is provided with a concave groove 14 extending in the longitudinal direction and opening at both ends of the body 1. The reference surface 4 of the body 1 has a length corresponding to the length of a tubular member 32 having a circular cross section. When measuring the gradient (gradient) of the tube 32 by abutting parallel to the
The abutment between the reference surface 4 of the body 1 and the tube member 32 is stabilized by the contact between the left and right side edges of the tube 14 and the tube member 32.

A shock absorbing member 15 made of synthetic resin is provided in the vicinity of the left and right ends of the container 1 and in the vicinity of the bubble tube 2, and the shock absorbing member 15 allows the container 1 to be accidentally dropped. The setting is made so as to prevent the accuracy of the reference surface 4 of the body 1 and the bubble tube 2 from being damaged and the measurement section 2 from being damaged.

In the figure, reference numeral 16 denotes a vertical measurement bubble tube used for measuring the verticality using the container 1.

Hereinafter, a method of disposing a pipe for sewage will be described in detail as an example of a method for disposing a pipe 32 having a circular cross section using the level 31 of the first embodiment.

A cut-out portion 17 provided on the ground by known means
The thread 9 is disposed on the upper side, and a down swing 34 is hung from the thread 9 to set a reference line for disposing the pipe 32. Also, tubing 32
First, the base end is connected to a manhole or an existing pipe, and the base end is first positioned.

Subsequently, a level 31 is disposed at the tip of the tube 31 so as to be orthogonal to the tube 32, and the recess 5 of the level 31 is fitted with the tube 32.

Subsequently, the level 31 is slightly moved along the outer peripheral surface of the tube 32 so that the bubbles 8 in the bubble tube 2 of the level 31 indicate that the reference surface 4 of the level 31 is horizontal. I do. When this operation is performed, the bubbles 8 in the bubble tube 2 of the level 31 are removed from the tube material 32.
The reference part 6 of the bubble tube 2 is
The position of the left and right center lines of 32 will surely be shown (see FIG. 2).

Therefore, the pipe member 32 is adjusted so that the arrangement reference line indicated by the plunger 34 coincides with the reference portion 6 of the bubble tube 2.
Is slightly moved to the left and right, the pipe member 32 is disposed at an accurate left and right position with respect to the intended arrangement reference line.

Subsequently, the base end of the other tube material of the above-mentioned tube material 32 is connected, and the tip end of this other tube material is arranged on an accurate arrangement reference line by the arrangement method using the level 31. By repeating the operation, the tube material can be
32 can be arranged at the exact left and right positions.

Since the first embodiment is configured as described above,
The bubble tube 2 allows the level to be ascertained, and the bubble tube 2 provides a level with excellent practicality and workability in which the right and left central positions of the tube material 32 can be easily and accurately known.

Further, since the concave portion 5 is set to be symmetrical when viewed from the side of the body 1, the first inclined portion 12 or the second inclined portion 12 with respect to the center position of the concave portion 5 can be formed even for pipes 32 having different diameters. A level that is excellent in practicability and versatility in which the equidistant portion of the inclined portion 13 can abut on the pipe 32.

Since the concave portion 5 is provided substantially at the center of the left and right of the body 1, the concave portion 5 of the body 1 is fitted to the tube 32 and the body 1 is disposed orthogonal to the tube 32. In this case, the vessel 1 is stably disposed on the pipe 32 in a well-balanced manner, and the level becomes more excellent in practicality and stability.

Since the first inclined portion 12 and the second inclined portion 13 forming the concave portion 5 are inclined slightly inward from the reference surface 4, the boundary between the concave portion 5 and the reference surface 4 has an obtuse angle. When the boundary portion abuts against the tube 32, the vessel 1 is stabilized on the tube 32, and when the tube 32 abuts on the first inclined portion 12 or the second inclined portion 13, Since the inclined portion 12 or the second inclined portion 13 has an inclination close to the outer peripheral shape of the tube 32, the level 1 is similarly stabilized on the tube 32, which is more practical.

In addition, since the bubble tube 2 which is inexpensive and is used as a general measuring unit is adopted as the measuring unit 2, the manufacturing cost is low and there is no sense of incongruity in the usual method of measuring the levelness. It is a level with excellent practicality, workability, and low cost.

Further, since the bubble tube 2 is provided with the reference portion 6, when the tube 32 is made to conform to the arrangement reference line indicated by the swing 34, the reference portion 6 is used instead of the vague reference like the bubble 8. By finely moving the plunger 34 so that it coincides with the plunger 34, the pipe 32 can be arranged at extremely accurate left and right positions, resulting in a more practical level.

Further, since the bubble tube 2 is provided with the scale 7, it is possible to easily know how much the tube member 32 should be moved when finely moving the tube member 32. Container. It should be noted that the scale 7 particularly exerts the function and effect in the second embodiment described later.

The second embodiment shown in FIG. 4 is another example of the method of arranging the tubing using the level 31 of the first embodiment. An installation reference line is set, and the pipe 32 is matched with the installation reference line. Note that a surveying instrument for civil engineering surveying, such as theodolite, may be used instead of the transit 33. Further, in the second embodiment, the operator using the transit 33 and the operator slightly moving the
Perform the installation work.

A cut-out portion 17 provided on the ground by known means
The pipe material 32 is provided, and connected to the base side manhole or the existing pipe material of the pipe material 32, and the base end portion is first positioned, and further,
The transit 33 is disposed near the base end of the pipe member 32 or at a desired position of the reference line for disposing the pipe member 32.

Subsequently, similarly to the first embodiment, a level 31 is disposed at the tip of the tube 32 so as to be orthogonal to the tube 32, and the concave portion 5 of the level 31 is covered with the tube 32. Then, the reference portion 6 of the bubble tube 2 surely indicates the position of the center line between the left and right of the tube 32.

Subsequently, except for the transit 33, the deviation between the optical arrangement reference line indicated by the transit 33 and the reference portion 6 of the bubble tube 2 is accurately determined by the scale 7 of the bubble tube 2 seen from the transit 33. For example, when the scale 7 is provided in units of 1 mm and the scale 7 is displaced from the reference line for distributing the three scales 7 to the worker who uses the transit 33 to slightly move the pipe 32, "3 mm
Give instructions such as "Left".

Subsequently, the worker arranging the tubing 32 finely moves the tubing 32 in accordance with the specific digitized instructions, and aligns the left and right central positions of the tubing 32 with the arranging reference line indicated by the transit 33. .

In the second embodiment, as described above, the work of arranging the warp yarn 9 does not have to be performed, and even if the tubing 32 is arranged over a long distance, the tubing 32 can be easily arranged by remote instruction. 32 can be arranged, and
The tube material 32 can be moved to an accurate position by a single fine movement according to an instruction quantified by the scale 7, thereby providing a tube material more excellent in practicality and workability.

The rest is the same as in the first embodiment.

FIG. 5 shows a third embodiment, in which a container 1 is provided with a synthetic resin central member 10 having a measuring portion 2 and a concave portion 5 and detachably provided on the left and right sides of the central member 10. Metal (aluminum) left and right members 11 and 11 'having a reference surface 4
It consists of and.

According to this configuration, for example, when the body 1 is too long to be disposed in the cutout portion 17, the left and right members 11 ・ 1
1 'is removed and used only with the central member 10, or a central member in which the shape of the concave portion 5 is changed depending on the diameter of the tube material 32 and the like.
It becomes possible to replace the damaged member and use it, or to replace only the damaged member when a part is damaged.

The measuring section 2 of the central member 10 is also
If the measuring unit 2 is configured to be detachable from the unit 10, the measuring unit 2 can be replaced with a different measuring unit 2 having a different scale 7 or the measuring unit 2 can be easily replaced when the measuring unit 2 is damaged. And it becomes even more preferable.

The rest is the same as in the third embodiment.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view of a first embodiment.

FIG. 2 is an explanatory diagram of a main part of the first embodiment.

FIG. 3 is an explanatory view of a method of disposing a pipe according to the first embodiment.

FIG. 4 is an explanatory diagram of a second embodiment.

FIG. 5 is an explanatory diagram of a third embodiment.

[Description of Signs] 1 Body2 bubble tube  3 Measurement surface 4 Reference surface 5 Recess 6 Reference portion 7 Scale 8 Bubbles15 Shock absorbing material  31 Level 32 Tube material 33 Surveying instrument

Claims (10)

[Claims] 1. A measuring unit for measuring horizontality is provided on a body,
A level provided with a reference surface on the bottom surface of the body, which is in contact with the measurement surface. A level provided with a measuring unit. 2. The level according to claim 1, wherein the concave portion is set symmetrically in a lateral view of the body. 3. The level according to claim 1, wherein the recess is provided substantially at the center on the left and right sides of the body. 4. The level according to claim 1, wherein a bubble tube is employed as the measuring unit. 5. A level according to claim 4, wherein a reference portion is provided at a center line between the left and right sides of the recess in the bubble tube to indicate the center position of bubbles in the bubble tube when the measurement surface is horizontal. Level. 6. The level according to claim 5, wherein scales are provided on the left and right sides of the reference portion at predetermined intervals from the reference portion in a bubble tube. 7. The level according to any one of claims 1 to 6, wherein the body is provided with a central member having a measuring portion and a concave portion, and is detachably provided on the left and right sides of the central member, and has a reference surface. And a left and right member. 8. A method of arranging a pipe material, comprising: positioning and arranging a first pipe material by an appropriate means; and, when arranging another pipe material at a tip portion of the pipe material, a tip portion of the other pipe material. The level according to any one of claims 1 to 7, wherein the level of the level is fitted in another tube and the level is orthogonal to the other tube. The left and right center positions of the other pipes are ascertained by the measuring unit of the vessel, and the other pipes are slightly moved so that the center position of the other pipes matches the predetermined arrangement reference line. Arrangement method. 9. The method for arranging tubing according to claim 8, wherein when the first tubing is positioned, the level according to any one of claims 1 to 7 is replaced by the recess of the level. The level is disposed so as to be fitted to the pipe and the level is orthogonal to the first pipe, and the left and right center positions of the first pipe are ascertained by the measuring unit of the level, and this center is determined in advance. A first pipe member is slightly moved so as to conform to the provided installation reference line. 10. A method of arranging a tube, wherein a first tube is positioned and arranged by an appropriate means, and when another tube is arranged at a tip portion of the tube, a transit is provided near the first tube. A surveying instrument such as or theodolite is installed, and the surveying instrument sets a reference line for arranging other pipes.
7. The level according to claim 6, wherein the level of the level is fitted on the other pipe and the level is orthogonal to the other pipe at the tip of the other pipe. The left and right center positions of the other tube material are determined by the bubbles in the bubble tube, and the deviation between the center position and the reference line is determined by the scale provided on the bubble tube. The other pipe material is made to conform to the above-mentioned installation reference line.