JP2020112513A - Dimension measuring device and bar arrangement inspecting method - Google Patents

Abstract

To provide an inexpensive dimension measuring device capable of easily measuring the dimension of a bar arrangement pitch or the like, and a bar arrangement inspecting method.SOLUTION: A dimension measuring device comprises: a long leveling rod body 12; a plurality of markers 14 provided on the leveling rod body 12, slidable along the longitudinal direction of the leveling rod body 12 and capable of being fixed to the leveling rod body 12 at a position after sliding; measuring means 16 of measuring a distance from a reference position P0 set to the leveling rod body 12 to the marker 14 or a distance between the markers 14; and recording means 18 of recording the measured distance.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a dimension measuring device and a reinforcing bar inspection method suitable for automatically measuring an arrangement interval (rear bar pitch) of reinforcing bars in a reinforcing bar inspection during construction of a reinforced concrete structure.

Conventionally, in reinforcing bar inspection during the construction of reinforced concrete structures, markers (for example, color magnets and color hose scraps) are attached to the reinforcing bar to confirm that the diameter and pitch of the reinforcing bar are suitable for the design. Along with the attachment, a staff is installed near the rebar, a picture is taken of these on one screen, and the diameter and pitch of the rebar are measured by reading the staff on the site or the scale of the staff from the picture. The inspection was carried out by converting into numerical data. At this time, the field engineer struck back the measurement data on a personal computer or the like to create an inspection list, which was used for the inspection. However, since such a method is analog, it takes a lot of time and labor for a field engineer.

As a device for reducing such trouble, for example, a bar arrangement measuring device described in Patent Document 1 is known. This device puts a rectangular white plate and rebar on one screen and shoots it with a camera, measures the distance from the camera to the white plate with a laser range finder, specifies the positional relationship between the camera and the white plate, and then the positional relationship The diameter and pitch of the reinforcing bars included in the image are measured based on the above.

On the other hand, as a ruler that does not require reading of the scale and can easily measure the length and the like with high accuracy, for example, a digital display type ruler described in Patent Document 2 is known. This ruler has a graduation part having a graduation on the ruler body, a guide is formed along the graduation direction of the graduation part, and a slider is movably mounted along the guide, and the slider is attached to the slider. A digital display for displaying the amount of movement and a baseline plate having a baseline are provided. When the base line of the base plate is aligned with the start end and the end of the measurement target portion, the length between them is digitally displayed on the digital display.

JP, 2017-15455, A JP-A-8-184427

However, the conventional bar arrangement measuring device described in Patent Document 1 requires a high-precision rangefinder such as a laser rangefinder and involves complicated and advanced image processing, resulting in high device cost. However, there was a problem that it was difficult to handle. Further, the above-mentioned conventional digital display type ruler described in Patent Document 2 is not convenient because it is not possible to measure the dimensions of a plurality of sections such as bar arrangement pitch at one time or record the measurement results. There was a problem. Therefore, in order to reduce the labor of the bar arrangement inspection, an inexpensive device that can easily measure the bar arrangement pitch and the like has been demanded.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an inexpensive size measuring device and a bar arrangement inspection method capable of easily measuring a size such as a bar arrangement pitch.

In order to solve the above problems and to achieve the object, the dimension measuring apparatus according to the present invention is a dimension measuring apparatus for measuring a distance dimension, and is provided with a long staff body and a staff body, Set the multiple markers that can be slid along the length of the staff and can be fixed to the staff at the slide position, and the distance from the reference position set on the staff to the marker or the distance between each marker. It is characterized by comprising a measuring means for measuring and a recording means for recording the measured distance.

Further, another dimension measuring device according to the present invention is characterized in that, in the above-mentioned invention, it is further provided with a monitor provided on the staff main body and displaying a measured distance.

Further, another dimension measuring device according to the present invention is the above-mentioned invention, wherein the monitor is a digital display unit for digitally displaying the measured distance and a two-dimensional bar code display unit for displaying the measured distance by a two-dimensional bar code. And having.

Further, another dimension measuring device according to the present invention is, in the above-mentioned invention, the staff main body is for reinforcing bar inspection for measuring at least one of a reinforcing bar pitch and a reinforcing bar diameter between a plurality of reinforcing bars arranged. It is characterized by

Further, a bar arrangement inspection method according to the present invention is a method of performing a bar arrangement inspection using the above-described dimension measuring device, in which a bar staff main body having a scale is arranged near a bar where the bar is arranged, After sliding the marker along the main unit to align the marker with the position of the reinforcing bar, measure the distance from the reference position to the marker or the distance between each marker, record the measured distance, and measure the main body and the marker. It is characterized by taking a picture of the screen and rebar on one screen.

The dimension measuring device according to the present invention is a dimension measuring device for measuring a distance dimension, which is provided on a long rod main body and the rod main body, and is slidable along the longitudinal direction of the rod main body. In addition, a plurality of markers that can be fixed to the staff body at the slide-moved position, measuring means for measuring the distance from the reference position set on the staff body to the markers or the distance between the markers, and the measured distance are recorded. Since it is equipped with a recording means, for example, after placing the staff body in the bar arrangement position as in the conventional case, it is possible to record the distance from the reference position to the marker or the distance between each marker only by aligning the marker with the position of the reinforcing bar. You can Therefore, it is possible to easily measure the dimensions such as the bar arrangement pitch and the diameter of the reinforcing bar, and it is possible to measure the dimensions of multiple sections such as the bar arrangement pitch at one time. There is an effect that can reduce.

Further, according to another dimension measuring device of the present invention, since it is further provided with a monitor that is provided in the staff body and displays the measured distance, for example, the staff body, the marker, the reinforcing bar to be inspected, and the monitor are displayed on one screen. Taking the photograph stored in (1) has the effect of making the inspection result easy to understand, as in the case of conventional inspection by photography.

Further, according to another dimension measuring apparatus of the present invention, the monitor has a digital display unit that digitally displays the measured distance and a two-dimensional bar code display unit that displays the measured distance by a two-dimensional bar code. Therefore, for example, if an inspection photograph in which the display of the monitor and the inspection target are contained in one screen is taken, it becomes possible to embed the information of the measured distance in the photograph. Further, the embedded information has an effect that it can be relatively easily loaded into a terminal such as a personal computer by using a barcode reader or the like.

Further, according to another dimension measuring device of the present invention, since the staff body is for bar arrangement inspection for measuring at least one of bar arrangement pitch and bar diameter between the rebars arranged, The muscle pitch and the diameter of the reinforcing bar can be easily measured, and the labor of the bar arrangement inspection can be reduced.

Further, according to the bar arrangement inspection method according to the present invention, it is a method of performing a bar arrangement inspection using the above-described dimension measuring device, in which the staff main body having a scale is arranged near the bar that has been arranged. After sliding the marker along the staff body to align the marker with the position of the reinforcing bar, measure the distance from the reference position to the marker or the distance between each marker, and record the measured distance. Since it takes a picture of the marker and the reinforcing bar on one screen, it reduces the labor of the bar arrangement inspection and, like the inspection by the conventional photography, has the effect that the inspection result is easy to understand. Play.

FIG. 1 is a diagram showing an embodiment of a dimension measuring device and a bar arrangement inspection method according to the present invention. FIG. 2 is a bar arrangement inspection image diagram showing an embodiment of the dimension measuring apparatus and the bar arrangement inspection method according to the present invention. FIG. 3 is a bar arrangement inspection image diagram showing another embodiment of the dimension measuring apparatus and the bar arrangement inspection method according to the present invention.

Hereinafter, an embodiment of a dimension measuring device and a bar arrangement inspection method according to the present invention will be described in detail with reference to the drawings, taking a case where it is applied to a bar arrangement inspection of a reinforcing bar as an example. The present invention is not limited to this embodiment.

(Dimension measuring device)
First, an embodiment of a dimension measuring device according to the present invention will be described.
As shown in FIG. 1, the dimension measuring device 10 according to the present embodiment is for automatically measuring at least one of the bar arrangement pitch and the diameter of the reinforcing bar (dimension). The dimension measuring device 10 includes a plastic rod main body 12 formed in a long strip having a constant width, a plurality of markers 14 mounted on the rod main body 12 so as to be slidable in the longitudinal direction, and a measuring unit 16. The recording means 18 and the monitor 20 are provided. For the staff body 12, the marker 14, and the measuring means 16, for example, the constituent elements of a digital display type ruler described in Patent Document 2 can be used.

On the staff main body 12, a scale portion 22 is formed at the center in the width direction, and a guide (not shown) is formed on one side edge side along the longitudinal direction. The scale portion 22 is provided with scales at predetermined intervals (for example, 5 mm) along the longitudinal direction. Further, a main scale (not shown) in which a plurality of electrodes are arranged in the longitudinal direction at regular pitch intervals is attached to the staff main body 12. Although the scale portion 22 is not an essential component of the present invention, it is preferable that the scale portion 22 be formed on the staff main body 12 to enable a conventional bar arrangement inspection by photography.

The marker 14 is slidably mounted on a guide (not shown) of the staff body 12. The marker 14 can be fixed so as not to move due to a frictional force with the guide or the like at the position where the marker 14 is slid. The marker 14 has a triangular shape with a conspicuous color, and the scale can be designated by the apex 24 that is sharp in the direction perpendicular to the longitudinal direction of the staff main body 12. The shape of the marker 14 is not limited to the triangular shape, but may be any shape such as a circle or a quadrangle.

The measuring unit 16 is provided inside the marker 14 and includes a displacement detector that detects a movement amount (distance) of the marker 14 from a predetermined reference position (for example, the left end P0 of the staff main body 12). This displacement detector includes an index scale having an electrode (not shown) that is attached to the staff body 12 and that can be electrostatically coupled to an electrode of a main scale (not shown), and a capacitance signal that changes according to the relative movement of both scales. A signal processing circuit that processes the signal and outputs an electric signal (pulse) corresponding to the amount of displacement of the marker 14, and a counter that counts the number of pulses from this signal processing circuit and records it in the recording means 18 as measurement data. It consists of

The recording means 18 is composed of a memory or the like for recording the measurement data by the measuring means 16, and is provided on the staff main body 12. The monitor 20 is a digital display (digital display unit) for digitally displaying measurement data and data for bar arrangement inspection, and is provided on the staff main body 12. Note that the monitor 20 can also digitally display the inspection reference value and the like input from an input means such as a keyboard (not shown).

The operation and action of the above configuration will be described.
As shown in FIG. 2, the scale main body 12 is placed along the site of the bar arrangement inspection consisting of a plurality of reinforcing bars S arranged substantially in parallel, and each of the markers 14 is moved so that the apex 24 thereof is located at the reinforcing bar S position. (For example, rebar axis C). By doing so, the distance L from the reference position P0 to each marker 14 is automatically measured by the measuring means 16 and the measurement data is automatically recorded in the recording means 18. After that, a field engineer connects the recording means 18 to a personal computer (not shown), reads the measurement data recorded in the recording means 18 with the personal computer, and calculates the length between the adjacent markers 14 from the measurement data. Then, the bar arrangement pitch M is obtained. By using the obtained bar arrangement pitch M as a list, the inspection list can be easily created.

According to the present embodiment, it is possible to record the distance L from the reference position P0 to the marker 14 simply by aligning the marker 14 with the position of the reinforcing bar S after the staff body 12 is arranged at the bar arrangement position as in the conventional case. it can. Therefore, it is not necessary to read the scale on the spot or the scale from the photographed photograph, and the bar arrangement pitch M can be surely and easily measured with high accuracy. Further, by using the measurement data automatically recorded in the recording means 18, the inspection list can be created more easily than the conventional method, and the labor of the field engineer can be reduced. As a result, productivity at the construction site can be improved. The present embodiment is inexpensive because of the simple configuration of the staff main body 12, the marker 14, the measuring means 16, the recording means 18, etc., and is easy to handle.

Further, as in the conventional inspection by taking a photograph, if the photograph in which the dimension measuring device 10 and the reinforcing bar S are contained in one screen is taken, the inspection result can be easily understood as in the conventional case. In this case, each measurement data is digitally displayed on the monitor 20, and a photograph in which the monitor 20, the staff main body 12, the marker 14, and the reinforcing bar S are contained in one screen is taken. By doing so, it is possible to visually judge whether or not the measurement data conforms to the predetermined inspection reference value from the taken photograph.

Alternatively, instead of this, the inspection reference value may be digitally displayed on the monitor 20 in advance, and a photograph including the monitor 20, the staff main body 12, the marker 14, and the reinforcing bar S in one screen may be taken. In the example of FIG. 2, “250” (unit: mm) is displayed as a digital value on the monitor 20 as a reference value of the bar arrangement pitch M. By doing so, it is possible to visually judge whether or not the bar arrangement pitch M conforms to the inspection reference value from the photographed image.

Further, based on a predetermined operation (for example, button operation attached to the staff main body 12 or the like), the inspection reference value and the bar arrangement pitch M are compared with each other, and if there is a difference, the fact is changed, for example, voice or numerical value color change, etc. May be notified. By doing so, the inspection labor can be further reduced.

Further, based on a predetermined operation (for example, button operation attached to the staff main body 12 or the like), the display content of the monitor 20 can be switched to an inspection reference value, a two-dimensional bar code, measurement data, bar arrangement pitch, or the like. May be. With this, convenience can be further improved.

In the above embodiment, the field engineer connects the recording means 18 to a personal computer (not shown) or the like, reads out the measurement data recorded in the recording means 18 with the personal computer or the like, and reads the adjacent markers 14 from the measurement data. Although the description has been given by taking the case where the length of the gap is calculated and the bar arrangement pitch M is obtained as an example, the present invention is not limited to this. For example, the dimension measuring device 10 may be provided with a calculating means, and this calculating means may calculate the length between the adjacent markers 14 from the measurement data to obtain the bar arrangement pitch M. Further, the numerical value of the bar arrangement pitch M calculated in this way may be displayed on the monitor 20. By doing so, the labor of calculating the bar arrangement pitch M can be reduced. Further, in the above embodiment, the measuring means 16 may measure the distance between the markers 14. In that case, in order to measure the dimensions such as the bar arrangement pitch M in a plurality of sections, it is preferable that the number of markers 14 is three or more, and one of them is preferably arranged at the reference position P0.

Further, the measurement data recorded in the recording means 18 may be transmitted to a terminal such as a personal computer or a tablet by a wireless communication standard such as a wireless LAN or Bluetooth (registered trademark). With this, convenience can be further improved.

Further, the recording means 18 may be configured to be able to record only one measurement data, or may be capable of recording a plurality of measurement data. When recording a plurality of measurement data, it is better to record the identification information in association with each measurement data. In this case, the identification information is the date and time at the time of shooting, the position data of the shooting position by GNSS, etc. Unique IDs may be used, and any input method such as voice input, keyboard input, input from a smartphone or the like may be used.

Further, although cases have been described with the above embodiment as examples where the bar arrangement pitch M is automatically measured, the present invention is not limited to this, and the diameter D of the reinforcing bar S may be automatically measured. In this case, for example, the distance L is measured by aligning the marker 14 with the left outer edge and the right outer edge of the reinforcing bar S, and the diameter D is measured by obtaining the difference between the two. As a result, the labor of the bar arrangement inspection can be reduced.

In addition, in the above-described embodiment, the monitor 20, in addition to the digital display section 20B (digital display) that digitally displays each measurement data, as shown in FIG. For example, you may have the two-dimensional barcode display part 20A displayed by QR code (trademark). By taking an inspection photograph in which the display of the monitor 20 and the inspection object are contained in one screen, it is possible to embed the information of each measurement data in the photograph. The embedded information can be relatively easily loaded into a terminal such as a personal computer by using a barcode reader or the like, so that the measurement data can be processed by the terminal.

(Reinforcement inspection method)
Next, an embodiment of the bar arrangement inspection method according to the present invention will be described.
The reinforcing bar inspection method according to the present embodiment is a method of performing a reinforcing bar inspection using the dimension measuring device 10 described above. In this method, as shown in FIG. 2, the railroad rod main body 12 having a scale portion 22 is arranged near the reinforced bar S, and the marker 14 is slid along the railroad rod main body 12 to move the marker 14. After aligning with the position of the reinforcing bar S, the distance L from the reference position P0 to the marker 14 is measured, the measured distance L is recorded, and the rod body 12, the marker 14, and the reinforcing bar S are put on one screen. Is to shoot. By doing so, as described above, in addition to reducing the labor of the bar arrangement inspection, it is possible to obtain an easy-to-understand inspection result as in the case of the conventional inspection by photography.

Note that the present invention is not limited to this, and as described above, each measurement data or inspection reference value is digitally displayed on the monitor 20, and the monitor 20, the staff main body 12, the marker 14, and the reinforcing bar S are displayed on one screen. You may also take a picture of.

As described above, the dimension measuring device according to the present invention is a dimension measuring device for measuring a distance dimension, and is a long scale main body and is provided in the scale main body, and the length direction of the scale main body is provided. A plurality of markers that can be slid along and can be fixed to the staff of the staff at the slide position, and a measuring unit that measures the distance from the reference position set on the staff to the marker or the distance between the markers, Since it is equipped with a recording means for recording the measured distance, for example, after arranging the staff body at the bar arrangement position as in the conventional case, the distance from the reference position to the marker or between the markers can be simply adjusted by aligning the marker with the position of the reinforcing bar. The distance can be recorded. Therefore, it is possible to easily measure the dimensions such as the bar arrangement pitch and the diameter of the reinforcing bar, and it is possible to measure the dimensions of multiple sections such as the bar arrangement pitch at one time. Can be reduced.

Further, according to another dimension measuring device of the present invention, since it is further provided with a monitor that is provided in the staff main body and displays the measured distance, for example, the staff main body, the marker, the reinforcing bar to be inspected, and the monitor are on one screen. Taking the photograph stored in the table makes it easier to understand the inspection result as in the case of the conventional inspection by photography.

Further, according to another dimension measuring apparatus of the present invention, the monitor has a digital display unit that digitally displays the measured distance and a two-dimensional bar code display unit that displays the measured distance by a two-dimensional bar code. Therefore, for example, if an inspection photograph in which the display of the monitor and the inspection target are contained in one screen is taken, it becomes possible to embed the information of the measured distance in the photograph. Moreover, the embedded information can be comparatively easily taken into a terminal such as a personal computer by using a barcode reader or the like.

Further, according to another dimension measuring device of the present invention, since the staff body is for bar arrangement inspection for measuring at least one of bar arrangement pitch and bar diameter between the rebars arranged, The muscle pitch and the diameter of the reinforcing bar can be easily measured, and the labor of the bar arrangement inspection can be reduced.

Further, according to the bar arrangement inspection method according to the present invention, it is a method of performing a bar arrangement inspection using the above-described dimension measuring device, in which the staff main body having a scale is arranged near the bar that has been arranged. After sliding the marker along the staff body to align the marker with the position of the reinforcing bar, measure the distance from the reference position to the marker or the distance between each marker, and record the measured distance. Since a photograph in which the marker and the reinforcing bar are contained in one screen is taken, in addition to reducing the labor of the bar arrangement inspection, it is possible to obtain an easy-to-understand inspection result as in the case of the inspection by the conventional photography.

As described above, the dimension measuring device and the bar arrangement inspection method according to the present invention are useful for automatically measuring the bar arrangement pitch of the reinforcing bar in the bar arrangement inspection during the construction of the reinforced concrete structure, and particularly, easily. It is also suitable for inexpensive measurement.

10 Dimension Measuring Device 12 Railing Main Body 14 Marker 16 Measuring Means 18 Recording Means 20 Monitor 22 Scale Section 24 Apex C C-axis Center D Diameter L Distance M Rebar Pitch P0 Reference Position S Reinforcing Bar

Claims (5)

A dimension measuring device for measuring a distance dimension,
A long rod main body, a plurality of markers provided on the rod main body, which can be slid along the longitudinal direction of the rod main body, and which can be fixed to the rod main body at the slide-moved position, and standards set on the rod main body. A dimension measuring device comprising: a measuring unit that measures a distance from a position to a marker or a distance between each marker; and a recording unit that records the measured distance. The dimensional measuring device according to claim 1, further comprising a monitor provided on the staff body and displaying a measured distance. The dimensional measurement device according to claim 2, wherein the monitor has a digital display unit that digitally displays the measured distance, and a two-dimensional barcode display unit that displays the measured distance by a two-dimensional barcode. The staff body is for reinforcing bar inspection for measuring at least one of a reinforcing bar pitch and a reinforcing bar diameter between a plurality of arranged reinforcing bars, The reinforcing bar body according to any one of claims 1 to 3, wherein Dimension measuring device. A method for performing a bar arrangement inspection using the dimension measuring device according to claim 1, wherein a bar staff main body having a scale is arranged near the bar where the bar is arranged, and the bar staff main body. After sliding the marker along the to align the marker with the position of the reinforcing bar, measure the distance from the reference position to the marker or the distance between each marker, record the measured distance, and measure the distance between the standard body and the marker. A bar arrangement inspection method characterized by taking a photograph of a reinforcing bar and a single screen.

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