JPH0736251Y2 - Vertical indicator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a tool for measuring the verticality of an instrument such as a pillar or a wall, as a surveying pillar.

[Prior Art] In many conventional surveying standard columns, a weight with a sharp tip is hung on a thread, and the tip is aligned with the measuring point, and the position is used as the setting point for the standard column and equipment. . However, in such a conventional conventional method of detecting verticality, the thread hanging the weight sways due to the wind blown from the outside, it takes time and effort for observation, and the efficiency in setting the measuring point was poor.

As a means for improving this, a bulging portion for accommodating the float is formed in the upper portion of the tubular body supported by the upper and lower legs, and liquid is filled in the inside thereof, and the upper end portion is made a transparent display portion. By the measurement case, the float with the pointer protruding upward, and the connecting member configured to pivotally support the float at the lower end of the measurement case and expose the pointer protruding from the float to the display portion of the measurement case. , Using the buoyancy of the float, the connecting member is freely swung in the liquid around the pivot point, and the movement of the connecting member accompanied by the uprightness allows the pointer on the float and the display line of the display unit to A vertical gage was proposed to measure verticality from alignment.

In addition, a hollow spherical transparent head container for accommodating floats is provided at the upper end of a cane-shaped long tube with a tapered tip.
The connecting thread fixed to the inner lower end of the cane-shaped long tube is tied to the floating ball in the head container, the inside of the cane-shaped long tube and the head container are filled with water, and the floating thread is anchored by the connecting thread. In addition, a method of confirming the position of a floating ball floating in the head container via a convex lens provided on the top surface of the transparent head container was also proposed.

Of these methods that utilize the buoyancy of the levitating body, the former is
Since the connecting member supporting the float is pivotally supported at the lower end of the measurement case, the rocking motion in the liquid filled in the measurement case is slow, and the resilience of the float is inferior. Since the case itself is not formed in a straight tube shape and is supported by the upper and lower legs, the measurement case can be directly brought into contact with the test object for verticality measurement and used for the desired measurement and detection. If the measurement target is different,
There was a defect that it lacked responsiveness, and the latter is said to connect floating floats with connecting threads, so whether the float is correctly positioned in the center of the spherical transparent head container However, there is the inconvenience of having to collimate from directly above the spherical transparent head container, and for collimation from the side, collimating the connecting thread with a separate collimator equipped with a reflecting mirror. Since it is complicated in structure and the hollow spherical head container at the upper end projects sideways from the tapered cane-shaped long tube body, it itself cannot be directly connected to a pillar or wall surface. There was an inconvenience in the application that it could not detect the verticality of the objects by touching them.

[Problems to be solved by the invention] Conventionally, when a series of work includes both work of surveying and verticality inspection, it has been necessary to prepare both a pillar and a verticality inspection tool and use them properly.

The present invention has been made in order to improve the drawbacks in the above-mentioned conventional examples utilizing buoyancy, and enables the use of both the standard pillar and the verticality inspection with an integrated instrument, and further, each work is performed. It is an object of the present invention to provide a vertical indicator that can be efficiently and easily performed.

[Means for Solving the Problems] In order to achieve the above object, the vertical indicator of the present invention has a lower end of a yarn 2 at the center 1 of the lower end bottom of a straight tubular sealed container body 4 in which water is enclosed. The floating body 3 having a smaller specific gravity than water is fixed to the upper end of the yarn 2, and the floating body 3 is suspended in the water enclosed under the connection of the yarn 2 so as to be swingable.
Vertical guide lines on transparent opposite wall surfaces of the straight tubular sealed container body 4
5, 5 are provided, and the vertical axis line due to the buoyancy of the levitated body 3 and the vertical reference lines 5, 5 are collimated from outside to abut the vertical standing state of the straight tubular sealed container body 4 or its side surface. The vertical state of objects such as pillars and walls was detected.

[Operation] In the vertical indicator of the present invention having the above-described configuration, when the fixed center 1 side of the lower end of the yarn 2 that anchors the float 3 is made to face downward, the straight tubular sealed container body 4 is erected. The filament 2 or the float 3 forms a vertical line.

Further, when the outer surface of the straight tubular sealed container body 4 is brought into contact with a vertical column or wall surface, the vertical line provided by the buoyancy of the levitation body 3 and the vertical lines provided on the mutually opposing side surfaces of the straight tubular sealed container body 4. The reference lines 5 and 5 coincide with each other with the same vertical line.

Further, the yarn 2 is not tangled even when the straight tubular sealed container body 4 is carried sideways as in the case of carrying.

[Embodiment] Hereinafter, a vertical indicator of the present invention will be described based on an embodiment shown in the drawings. In addition, in these drawings, the diameter of the straight tubular sealed container body 4 is expressed larger than its length for easy understanding.

FIG. 1 shows that a straight tubular sealed container body 4 is formed by a transparent body having a straight tubular shape in cross section, and the lower end of the yarn 2 is fixed to the center 1 of the lower end bottom portion of the container body 4, A floater 3 having a smaller specific gravity than water is connected to the upper end of 2. This levitator 3
Is commonly called "float". The container body 4 is filled with water, and the head of the container body 4 is
A lid 6 is attached to prevent water leakage, and the container body 4 is hermetically sealed.

As a result, the levitation body 3 is connected to the container body 4 via the yarn 2 and floats in the enclosed water so that it can swing.

Further, on the opposite side walls of the container body 4, vertical reference lines 5 and 5 are provided at mutually opposing positions by dividing the circumference of the container body into four equal parts.

FIG. 2 shows a straight tubular sealed container body 4 in FIG. 1 which is a straight pipe having a rectangular cross section, and vertical reference lines 5 and 5 are similarly provided at the opposite positions of each side surface of the same container body 4. Has been.

3 and 4 are cross-sectional views taken along the line III-III in FIG. 1 and the line IV-IV in FIG. 2, respectively, which show the setting positions of the vertical reference lines 5, 5. I am doing it.

FIG. 5 shows that the levitation body 3 of the embodiment shown in FIG. 1 is used as a plurality of hollow spherical bodies, and these are connected in a chain in the straight tubular sealed container body 4 along the longitudinal direction thereof to form a space between the spherical bodies. The connecting portion such as a yarn connecting the above and the vertical reference lines 5, 5 are the target of the alignment work. These spheres are filled with helium gas in their hollow interiors and have a specific gravity lighter than that of water.

FIG. 6 shows an example in which, in place of the levitation body 3 of the embodiment shown in FIG. 2, a plurality of elongated levitation bodies 3 are connected in a chain in a straight tubular sealed container body 4 along the longitudinal direction thereof. It is shown.

Next, the operation of the vertical indicator of the present invention according to these embodiments will be described.

The levitation body 3 that is swingably provided inside the straight tubular sealed container body 4 floats up due to its own buoyancy force, and the yarn 2 rises accordingly, and together with the levitation body 3, the center 1 of the bottom of the container body. Form a vertical line with the base point as. The levitation body 3 acts so as to always maintain the vertical line formation state even when the container body 4 is tilted, and works toward the restoration direction.

When the side surface of the container body 4 is brought into contact with the side surface of an article such as a building or a wall surface, the vertical line formed by the levitation body 3 together with the yarn 2 and the vertical reference line 5,5 provided on the wall surface of the container body 4 The verticality at the contact surface is detected by the relative position with respect to.

Further, even if the vertical indicator according to the present invention is placed horizontally or overturned, the levitation body 3 is connected to the levitation body 3 because its movement is suppressed by the inner surface of the container body 4. When the container body 4 is erected without causing the yarn 2 to be entangled, the yarn 2 and the levitation body 3 immediately form a vertical line in response to this.

Next, a method of using the vertical indicator of the present invention will be described.

First, when used as a pillar for civil engineering and construction surveying, as shown in FIG. 7, the position of the center 1 of the bottom bottom of the straight tubular sealed container body 4 is aligned with the measurement point position, and the container body 4 is Erect the container body 4 so that the inner wall of the container does not come into contact with the float body 3,
To support.

In this case, as shown in FIG. 8, a commercially available tripod may be used as a support for the straight tubular sealed container body 4, and a tripod may be attached to the tripod to stand at the measuring point.

Next, in order to inspect the verticality of pillars and wall surfaces in a building, as shown in FIG. 9, the vertical indicator itself of the present invention used as a standard pillar is used as it is, and the side surface of the container body 4 is covered. Contact the specimen. Thereby, the vertical line and the vertical reference line indicated by the yarn 2 and the levitation body 3 which anchor the levitation body 3
By observing the relative positional relationship with 5 and 5, it is possible to inspect the verticality of columns and walls.

[Effects of the Invention] As described above, in the vertical indicator according to the present invention, the yarn is provided in the center 1 of the bottom end of the straight tubular sealed container body 4 inside the container body 4 along the longitudinal direction thereof. 2 and the levitation body 3 are tethered, and these can be rocked in the water. Therefore, due to the buoyancy of the levitation body 3, the vertical line formed by the yarn 2 and the levitation body 3 and the container body The relative position to the vertical reference lines 5, 5 provided on the side of 4 can be collimated from the outside, and it can be used as a standard pillar during civil engineering construction survey and the verticality indicating the finished condition of pillars and wall surfaces in buildings. It can be used both as an inspection tool.

Further, when used as a verticality inspection tool, it is not affected by wind and can be used by contacting the object to be inspected, so that stable and quick inspection can be performed.

Furthermore, even if you carry the vertical indicator itself horizontally,
Further, even if the yarn 2 that suspends the float 3 is not entangled even when it is rolled over while being carried, if the straight tubular sealed container body 2 is erected from any state, the yarn 2 and the float 3 are immediately Since it forms a vertical line, it exhibits high responsiveness in both surveying work and vertical inspection work.

[Brief description of drawings]

FIGS. 1, 2, 5, and 6 are front views showing an embodiment of a vertical indicator according to the present invention, and FIG. 3 is II of FIG.
FIG. 4 is a sectional view taken along line I-III, FIG. 4 is a sectional view taken along line IV-IV in FIG. 2, and FIGS. 7, 8 and 9 are explanatory views showing a usage state. . 1 ... Center of bottom of bottom of container body, 2 ... Thread, 3 ... Floating body 4 ... Straight tubular sealed container body, 5 ... Vertical reference line, 6 ... Lid

Claims (8)

[Scope of utility model registration request] 1. A floater having a specific gravity smaller than that of water at the upper end of the thread 2 by fixing the lower end of the thread 2 to the center 1 of the lower end bottom of a straight tubular sealed container body 4 in which water is enclosed. Connect 3
This floating body 3 is floatably suspended in the water enclosed under the connection of the yarns 2, and vertical reference lines 5, 5 are provided on the transparent opposing wall surfaces of the straight tubular sealed container body 4 to make it a floating leash. The vertical axis line due to the buoyancy of the body 3 and the vertical reference lines 5 and 5 are seen through from the outside, and the vertical standing state of the straight tubular sealed container body 4 or the vertical state of objects such as pillars and wall surfaces abutting the side surface thereof is determined. A vertical indicator characterized by detecting. 2. The vertical indicator according to claim (1), wherein the floating body 3 is formed as an elongated “float” along the longitudinal direction of the straight tubular sealed container body 4. 3. The vertical indicator according to claim 1, wherein the levitation body 3 has a plurality of hollow spherical bodies connected in a chain. 4. The utility model registration claim (1), wherein the levitation body 3 has an elongated shape and a plurality of the levitation bodies 3 are connected in a chain along the longitudinal direction of the straight tubular sealed container body 4. Vertical indicator described. 5. The utility model registration claim (1) to (4), wherein the straight tubular sealed container body 4 is formed of a circular tube body, and the lower end thereof is configured as a spear-shaped protruding end. The vertical indicator according to any one of 1. 6. The vertical indicator according to any one of claims (1) to (4), wherein the straight tubular sealed container body 4 is formed in a quadrangular prism shape. 7. The utility model registration claim (1) to (6), wherein the straight tubular sealed container body 4 is kept in a sealed state by a lid 6 provided on the upper portion thereof. Vertical indicator described in paragraph. 8. The vertical indicator according to claim 3, wherein the levitation body 3 is formed of a balloon filled with helium gas therein.