JPH0580961B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to an electronic tape measure and a dimension measuring device equipped with the electronic tape measure used for marking out or measuring the dimensions of an existing structure.

"Prior Art" Conventionally, as shown in FIG.
An electronic tape measure (so-called digital convex) 4 is known in which a main measuring tape 2 is housed inside the main body 1 so as to be freely wound, and a digital display section 3 is provided on the main body 1. This electronic tape measure 4 has a drawer opening 1 of the main body 1.
It is configured to numerically display the length of the main scale 2 pulled out from a on the digital display section 3, and is mainly used for measuring lengths of several meters with a minimum measurement unit of 1 mm.

To measure various lengths using the electronic tape measure 4, pull out the main measure 2 from the main body 1 using the metal fitting 5 attached to the tip of the main measure 2, and position the metal fitting 5 at one end of the point to be measured. The measurement is carried out by using this as a reference point and reading the numerical value shown on the digital display section 3 with the outlet 1a positioned at the other end of the measurement point.

By the way, conventionally, when high accuracy is required when marking out at a construction site, etc., instead of positioning the metal fitting 5 at one end of the area to be measured and measuring from this as a reference point, the main scale 2 is used. In the middle of the process, for example, pull out the main scale 2 using the part where the number 100mm is engraved as a reference point, measure the distance from this reference point to the outlet 1a, and then measure the distance from this number to 100mm.
The exact dimensions of the measured area were determined by subtracting the value of .

By the way, in the case of the electronic tape measure 4 having the above configuration,
A rod-shaped measurement guide 7 that can be raised and lowered is provided above the outlet 1a in preparation for measuring the outer surface. The electronic tape measure 4 is provided with a preset key 8 for measuring the outer edge. By pressing this preset key 8 before measuring the outer edge, the digital display section 3 displays the main scale 2 that has been pulled out.
The length of the measuring guide 7 is calculated from the length of the measuring guide 7 and is displayed.

That is, to measure the outer edge using the electronic tape measure 4, align the preset key 8 to the outer edge measurement position, fold down the measurement guide 7 so that it is aligned with the main scale 2 that has been pulled out, and press the metal fittings of the main measure 2. 5 on one end of the object to be measured, and the tip of the measurement guide 7 is positioned on the other end of the object to be measured.
Measurements are made by reading the display.

"Problems to be Solved by the Invention" However, as mentioned above, if the worker corrects the numerical value himself each time he takes a measurement, when measuring multiple points, the worker's calculations when making corrections are difficult. Due to a mistake or the like, the value displayed on the digital display section may be recorded as a measured value without being corrected, resulting in a problem of measurement errors.

In addition, when a worker measures the outside thickness at the site as described above, there is a risk that the worker may forget to press the preset key 8, and the length of the main scale 2 pulled out (the measurement guide 7 If the value (adding the length of

Furthermore, conventionally, when performing various measurements using the electronic tape measure 4, in order to process the measurement data, it is necessary to record the measurement data on a recording paper, etc., and then input the measured values into a separately prepared pocket computer, etc. However, there was a problem in that it took time to input the measured values into the pocket computer, and data processing was time-consuming. In addition, many conventional pocket computers operate on a 100V power supply.
Generally, these devices are not suitable for use outdoors, such as in the field, and therefore it has been difficult to quickly process measurement data recorded in the field.

The first invention was made in view of the above-mentioned circumstances, and it is possible to eliminate the above-mentioned measurement error when measuring with the middle part of the main scale as a reference point, and also to be able to perform measurements using an outside measurement guide. The purpose of the present invention is to provide an electronic tape measure that can eliminate measurement errors caused by manual measurement.

The second invention has been made in view of the above circumstances, and provides a dimension measuring device equipped with an electronic tape measure that can instantly aggregate and calculate data measured by the electronic tape measure and perform various data processing. With the goal.

"Means for solving the problem" The first invention, in order to solve the problem,
The main scale is stored in the main body so as to be freely wound up through a drawer opening formed on the side of the main body, and a digital display section is provided on the outside of the main body to display the length of the drawer of the main scale. The electronic tape measure is provided with an outer measurement guide that can be freely raised and lowered around a portion adjacent to the outlet, and has an output section for display data of the digital display section on the main body, wherein the digital display section is provided with an output section for displaying data from the main body. There is a function that always subtracts a certain length from the length of the main scale that has been pulled out and displays it, and when the outer measurement guide is tilted parallel to the main scale that has been unwound, the length of the main scale that has been pulled out from the main body is A function for subtracting and displaying the length of the outer measurement guide from the length is added, and the main body is provided with a preset key for subtracting the fixed length.

In order to solve the above-mentioned problems, the second invention has the following features:
A device comprising: the electronic tape measure of the first invention; a data logger that is connected to the electronic tape measure and processes data sent from the electronic tape measure; and a battery power supply unit that supplies power to the data logger. It is.

"Operation" According to the first invention, in order for the digital display section to display a value obtained by subtracting a certain value from the drawn-out length of the main scale, the measurement is performed with the middle of the main scale, for example, a 100 mm part as a reference point. If the operator exceeds 100mm, the digital display automatically displays the value after subtracting 100mm, without having to perform calculations that require the operator to subtract 100mm. This improves measurement reliability. Also, if you set the length of the measuring guide to be the value to be subtracted from the length of the main scale drawn out, when you fold the guide down and measure the outside distance, the digital display will automatically display the value after subtracting the length of the measuring guide. to display in
Calculation errors conventionally made by workers when measuring outsideness can be eliminated.

According to the second invention, the values measured with the electronic tape measure can be directly input into the data logger, and the data processing of the measured values can be executed immediately after the measurement, so that the data can be processed immediately.

"Embodiment" FIGS. 1 and 2 show an electronic tape measure according to an embodiment of the first invention, and FIG. 3 shows a dimension measuring device according to an embodiment of the second invention. In Figures 1 to 3, 10 is an electronic tape measure, 11 is a battery power supply, 12 is a data logger equipped with a printer 12a, 13 is a data processing device (microcomputer), 14 is a plug, and 15 is for importing external data. A switch (for example, a foot switch) is shown in each case.

The electronic tape measure 10 shown in FIG.
It is mainly composed of a main scale 21 that is housed inside the main body 20 so as to be freely wound up, and a digital display section 22 provided on the upper part of the main body 20.
One side of the main body 20 (left side in FIG. 1)
An outlet 23 for the main scale 20 is formed at the bottom of the main scale 20,
A measurement guide (50 mm in length in this embodiment) 24 for measuring the outside thickness is provided above the outlet 23 so as to be freely raised and lowered. Note that a metal fitting 21a having an L-shaped side surface is attached to the tip of the main scale 21.

Furthermore, a preset key 25 is provided on the side of the digital display section 22. The digital display section 22 enters the first display state by pressing the preset key 25 once, and in this first display state, the length of the main scale 20 pulled out from the drawer opening 23 of the main body 20 is 100 mm. The value after subtracting is displayed. Further, a side part of the measurement guide 24 provided above the outlet 23 is provided with a second display which operates when the measurement guide 24 is tilted parallel to the bottom surface of the main body 20 to display the digital display section 22. A switch (not shown) for setting the display state is provided, and when the second display state is entered, the digital display section 22 will be displayed 50 mm from the length of the main scale 20 pulled out from the drawer opening 23 (the length of the measuring guide). The value obtained by subtracting the

On the other hand, the electronic tape measure 10 is connected to a battery power source 11 via a connection cable 26 as shown in FIG.
is detachably connected to the battery power supply 11.
to the data logger 12 via the connection cable 27.
is detachably connected to the data logger 12, and a data processing device (microcomputer) 13 is detachably connected to the data logger 12 via a connection cable 28.

Note that the preset key 25 of the electronic tape measure 10
A data transfer key 30 is provided near the data logger 12. By pressing this data transfer key 30, the numerical value displayed on the digital display section 22 is transferred to the data logger 12.
It is now possible to transfer and record the data. In addition,
The aforementioned switch 1 provided on the data logger 12
5 has a function of sending the display data of the digital display section 22 to the data logger 12, and this switch 15
By operating the data transfer key 30, data can be transferred independently.

Next, a case will be described in which measurement is performed using the electronic tape measure 10 configured as described above, and various measurement data are analyzed using a dimension measuring device.

To measure a length using the electronic tape measure 10, first, the electronic tape measure 10, battery power source 11, and data logger 12 are connected to each other by connection cables 26 and 27 and transported to a measurement site. In this way, the electronic tape measure 10 and the data logger 12 can be transported to the measurement site all at once, and the data logger 12 can be driven by the battery power supply 11, so it can be used at sites such as outdoors where it is not possible to receive power from an external power source. It can be applied to measurements without any problems.

Next, after pressing the preset key 25 of the electronic tape measure 10 to set the digital display section 22 to the first display state, pull out the main measure 21 from the main body 20 and
1, where the 100 mm mark is written as the base point a shown in Figure 1, apply this base point a to one end of the object to be measured, pull out the main scale 21 along the object to be measured, and remove the other side of the object to be measured. This is done by placing the outlet 23 on the end and reading the numerical value on the digital display 22. At this time, by pressing the preset key 25, the value c is automatically subtracted from the length b of the main scale 21 as shown in Fig. 1 by subtracting 100 mm.
is displayed, so the worker does not have to subtract 100 mm to calculate the measured value himself, which has the effect of eliminating measurement errors.

In addition, when measuring the outer surface using the electronic tape measure 10, the measurement guide 24 is tilted down as shown in FIG. The numerical value on the digital display section 22 may be read by placing the tip of the guide 24 against the other end of the object to be measured. During this measurement, measure guide 2
4, the digital display section 22 automatically enters the second measurement state, and a value 50 mm less than the length of the main scale 21 is digitally displayed. The outsideness can be measured by reading the numerical value on the digital display section 22 without performing calculations to subtract values. Therefore, compared to the conventional electronic tape measure, which is used by pressing the preset key several times to switch to the outside display state, the outside distance can be measured without making measurement errors due to incorrect operation of the preset key.

By the way, the measurement data displayed on the digital display section 22 each time a measurement is performed is recorded in the data logger 12 by pressing the data transfer key 30. The data thus measured is sequentially recorded in the data logger 12, and upon completion of the measurement, the data logger 12 performs simple statistical processing such as averaging the measured values. In this way, after the measurement is completed, the data logger 12
If the data processing is performed in , the data processing can be carried out immediately upon completion of the measurement work. Further, in order to perform more detailed analysis and calculation of each data, a data processing device 29 can be connected to the data logger 12.

By the way, when measuring the internal thickness using the electronic tape measure 10, as shown in FIG. The side surface opposite to one side of the main body 20 is brought into contact with the side surface of the other existing object B, and the display on the digital display section 22 is read.

In this work, since the connecting cable 26 is pulled out from the bottom of the main body 10 as shown in FIG.
does not get in the way.

In this regard, in the conventional electronic tape measure 4, as shown in FIG. Although this connection cord 9 had a problem of getting in the way, this problem can be solved by attaching the connection cable 26 to the bottom surface of the main body 20 as in this embodiment.

Figure 5 shows the state in which the inward clearance between a short existing building C and the side of a tall existing building D facing this existing building C is being measured; This shows a state in which the inner distance between E and F is being measured. If the connecting cable 26 is drawn out from the bottom of the main body 20 as described above, inward measurement becomes possible in both cases shown in FIGS. 5 and 6. Note that the connection cable 26 is not limited to the bottom surface of the main body 20, and may be pulled out at any position other than the side surface facing the outlet 23. Therefore, as shown in FIG. 7, in the main body 20, a connection cable 26 may be provided on the lower side of the front surface of the main body where the digital display section 22 is provided.

"Effects of the Invention" As explained above, the first invention provides the following effects.

The electronic tape measure of the first invention is set so that the digital display section displays the value obtained by subtracting a certain value from the drawn-out length of the main measure, so that measurements can be taken from the middle of the main measure, for example, at a 100 mm point. In the event that
The digital display is done without the worker having to subtract 100 mm from the calculation, which allows the worker to measure without inducing calculation errors, which has the effect of improving the reliability of the measurement. Also, when measuring the outer layer,
When the outside measurement guide is tilted parallel to the main scale that has been pulled out, the digital display automatically displays the value obtained by subtracting the length of the outside measurement guide. It is possible to eliminate calculation errors. Furthermore, since it is equipped with a display data output section, it has the effect of allowing data processing to be performed immediately after measurement by connecting to a computing device such as a data logger.

Furthermore, the outer measurement guide is provided on the side of the main unit so that it can be raised and lowered around the area adjacent to the main scale drawer opening, so you can easily and reliably fold the outer measurement guide along with the main scale that has been pulled out. It is possible to measure the outer layer.

In addition, if the outside measurement guide is pulled out from the main body, a space is required to store the outside measurement guide inside the main body, and a sliding guide etc. to pull out the outside measurement guide along the main scale is required. must be installed inside the main body,
In this respect as well, space is required and the internal structure becomes complicated.

In contrast, in the present invention, since the outer measurement guide is provided on the side surface of the main body so as to be able to be raised and lowered, the electronic tape measure itself can be made compact and have a simple structure.

Further, according to the second invention, the following effects are achieved. Since the display data output of the electronic tape measure can be transferred to the data logger, the measured values can be processed immediately. Therefore, the conventional work in which an operator records measured values and inputs the recorded contents into a microcomputer can be omitted, and the data processing speed of measured values is improved.

[Brief explanation of the drawing]

Figures 1 and 2 show an embodiment of the first invention, where Figure 1 is a perspective view of an electronic tape measure, and Figure 2 is a perspective view of the electronic tape measure with the outer measurement guide folded down. , FIG. 3 is a configuration diagram showing an embodiment of the second invention, FIG. 4 is a cross-sectional schematic diagram showing a first example of a state in which the inner width is measured using an electronic tape measure, and FIG. 5 is a diagram showing the electronic tape measure. FIG. 6 is a schematic cross-sectional view showing a second state in which the inside distance is measured using an electronic tape measure, FIG. 7 is a cross-sectional diagram showing a third state in which the inside distance is measured using an electronic tape measure, and FIG. FIG. 8 is a perspective view showing a conventional electronic tape measure, and FIG. 9 is a perspective view showing a conventional internal measurement state. 10...Electronic tape measure, 11...Battery power supply, 1
2...Data logger, 20...Main body, 21...Main scale, 22...Digital display section, 23...Drawer opening,
24...Measurement guide, 25...Preset key,
26, 27... Connection cable, 29... Processing device.

Claims (1)

[Scope of Claims] 1. A main scale is stored in the main body so as to be freely wound up through a draw-out port formed on the side of the main body, and a digital display unit is provided outside the main body to display the length of the main scale to be drawn out. an electronic tape measure, further comprising: an external measuring guide provided on a side surface of the main body so as to be freely tiltable around a portion adjacent to the outlet; and an output section for display data of the digital display section on the main body;
The digital display section has a function that always subtracts a certain length from the length of the main scale pulled out from the main body and displays it. , a function is added to subtract and display the length of the outer measurement guide from the length of the main scale pulled out, and the main body is provided with a preset key to perform the function of subtracting the certain length. An electronic tape measure characterized by: 2. The electronic tape measure according to claim 1, wherein the display data output cable is drawn out from a portion of the main body excluding the side surface opposite to the side surface provided with the main tape outlet. 3 The main scale is stored in the main body so that it can be wound up freely, and a digital display section is provided on the outside of the main body to display the length of the main scale to be drawn out. It is equipped with an outer measurement guide that can be raised and lowered freely, and is equipped with a display data output function, and furthermore, the digital display section shows a screen that always subtracts a certain length from the length of the main scale pulled out from the main body. Added a function to display the difference, and a function to subtract and display the length of the outside measurement guide from the length of the pulled out main scale when the outside measurement guide is laid down parallel to the pulled out main scale. an electronic tape measure, a data logger connected to the electronic tape measure to process data sent from the electronic tape measure, and a battery power supply section for supplying power to the data logger. Dimension measuring device with tape measure.