JP6898787B2 - Tatami size display device and tatami size display program - Google Patents

Description

An embodiment of the present invention relates to a method for measuring a tatami mat laying area, a tatami size display device, and a tatami size display program.

Tatami is a traditional Japanese technique, and even today, the size of tatami mats and the size of the room for laying tatami mats are still used in units of scale by the shakkanho method. Specifically, conventionally, when measuring the size of a tatami mat or a room, an operator uses a tatami mat scale 80 as shown in FIG. The tatami mat 80 has a scale attached in 1-minute increments based on the shakkanho method, but the scale is not provided with a numerical value indicating a specific value for the scale. Such a tatami mat scale 80 shows a reference system such as "Gohachi", "Saburoku", and "Honken" instead of the numerical value indicating the value of the scale. Symbols 81, 82 and 83 are provided.

"58", "36", and "Honma" are standard systems commonly used in the tatami industry. In each of these reference systems, as shown in FIG. 22, the ratio of the long side dimension L and the short side dimension W of the tatami mat is set to L: W = 2: 1. The symbols 81, 82, and 83 shown in FIG. 21 indicate the long side dimension L of each reference system. In this case, the symbol 81 of "58" shown in FIG. 21 is provided at a position of 5 shakuhachi 8 inches from the end portion which is the base point of the tatami mat 80. The symbol 82 of "36" is provided at a position 6 shaku from the end portion which is the base point of the tatami mat 80. The symbol 83 of "Honma" is provided at a position of 6 shaku 3 inch from the end portion which is the base point of the tatami mat 80. Although details are not shown, similarly, for the short side dimension W, symbols 81 and 82 are located at positions 2 shaku 9 inch, 3 shaku, 3 shaku 1 inch 5 minutes from the end point which is the base point of the tatami mat 80. 83 is provided.

When measuring the size of a room, the operator determines the reference system to be used in advance, and as shown in FIG. 23, the two reference lines 91 and 92 extending in the vertical and horizontal directions of the room to be measured and orthogonal to each other. To set. Reference lines 91 and 92 are, for example, threads, laser beams, and the like. The operator puts the end of the tatami mat 80 as the base point of the room against the edge of the room, and arranges the tatami mat 80 so that the tatami mat 80 intersects either of the reference lines 91 and 92. Then, the operator reads the position where the tatami mat 80 and the reference line 91 or the reference line 92 intersect as the difference from the symbols 81, 82, 83 of the adopted reference system.

After that, the operator records the read value as shown in FIG. 23. For example, in FIG. 23, "○" written at the corner of the room on the upper left side of the paper is read as "maru", and the straight line distance from the edge of the room located on the upper side of the paper in FIG. 23 to the reference line 91 is It means that there is no difference with respect to the short side dimension W of the adopted reference system. Also, for example, "one small" written to the right of "○" mentioned above is read as "Ichibusho", and the straight line distance from the edge of the room located on the upper side of the paper to the reference line 91 is adopted. It means that it is 1 minute smaller than the short side dimension W of the reference system. Then, for example, the "three majors" written in the corner of the room on the upper left side of the paper are read as "sanbudai", and the straight line distance from the edge of the room located on the left side of the paper to the reference line 92 is It is shown that it is 3 minutes larger than the long side dimension L of the adopted reference system.

However, there are many problems with the conventional method using the size unit. For example, in the conventional expression using the scale unit, the dimension is expressed relatively as a difference from the standard, so the notation is complicated and difficult to understand at first glance. Therefore, for example, it takes a long time for young people and foreign workers who are newly engaged in the tatami industry to become accustomed to the method using this size unit. Further, as shown in FIG. 22, the adopted standard system differs depending on the region and the craftsman. Therefore, for example, even if the notation is the same, if there is a misunderstanding in the recognition of the reference system, the size of the room will be different, and the size of the tatami mat to be manufactured will be significantly different. Furthermore, since the shakkanho method does not comply with international standards, it is difficult to measure the size of rooms in foreign countries and to produce them locally, which makes it difficult to expand tatami mats overseas.

Japanese Unexamined Patent Publication No. 2000-266502

Therefore, we provide a method for measuring the tatami mat laying area, a tatami size display device, and a tatami size display program that can directly express the size of a room or tatami mat by the metric system without the intervention of the shakkanho method.

The method for measuring the tatami laying area of the embodiment is a reference line setting step of installing a linear reference line in the tatami laying area in the tatami laying area surrounded by the inner frame of the room in the area where the tatami is laid. It is performed using a ruler that is formed in an inflexible elongated shape and has a scale in mm units by the metric method with the elongated end as a base point, and is divided by the reference line in the tatami mat laying area. In the step of measuring the dimension of the region on one side, the end portion of the ruler, which is the base point, is applied to the inner frame on the one side, and the ruler is arranged so as to be orthogonal to the reference line. By acquiring the position where the reference line passes on the ruler in the state, the one-sided region measuring step of measuring the dimension from the inner frame on the one side to the reference line in an absolute value in mm units, and It is a step of measuring the dimension of the other side region of the tatami mat laying area divided by the reference line, which is performed using the ruler, and the end portion serving as the base point of the ruler is the other side. By acquiring the position on the ruler through which the reference line passes in a state where the ruler is placed so as to be orthogonal to the reference line while being applied to the inner frame, the reference line is obtained from the inner frame on the other side. It is provided with a other side region measuring step of measuring the dimensions up to by an absolute value in mm units.

Further, the tatami-sized display device of the embodiment includes a display unit capable of displaying figures and numerical values, and a control unit for controlling the display contents of the display unit. The control unit is located at a position separated by a certain distance from one end of a first axis passing through the long side on the upper front side of the tatami mat to be displayed and one end of the long side on the upper front side along the first axis. The axis setting processing unit that virtually sets the second axis orthogonal to one axis, and the distance dimension from the first axis to the long side on the lower front side of the tatami mat are displayed as absolute values in mm. It has a numerical display processing unit that displays the distance dimension from the second axis to the left and right short sides of the tatami mat in absolute values in mm units.

Further, the tatami-sized display program of the embodiment is a program executed on a computer including a display unit capable of displaying figures and numerical values and a control unit for controlling the display contents of the display unit. This program is provided to the computer at a position separated by a certain distance from one end of the long side of the upper front side of the tatami mat to be displayed and one end of the long side of the upper front side along the first axis. The axis setting process for virtually setting the second axis orthogonal to the first axis and the distance dimension from the first axis to the long side on the lower front side of the tatami are displayed in absolute values in mm. At the same time, a numerical display process of displaying the distance dimension from the second axis to the left and right short sides of the tatami mat in absolute values in mm is executed.

A diagram schematically showing the shape of a room to be measured in the method for measuring a tatami mat laying area according to an embodiment. A flowchart showing a series of steps from room measurement to tatami mat laying for one embodiment. A diagram conceptually showing an example of a reference line setting process for one embodiment. A perspective view showing an example of a ruler used in the method for measuring a tatami mat laying area according to an embodiment. A development view showing an example of a ruler used in the method for measuring a tatami mat laying area according to an embodiment. A diagram conceptually showing an example of a one-sided region measurement process for one embodiment (No. 1). The figure which conceptually shows an example of the other side area measurement process about one Embodiment (the 1). A diagram conceptually showing an example of a one-sided region measurement process for one embodiment (Part 2). The figure which conceptually shows an example of the other side area measurement process about one Embodiment (the 2). The figure which shows an example of the recorded content of the measurement result about one Embodiment. A block diagram showing an example of the configuration of a tatami-sized display device according to an embodiment. A diagram conceptually showing the contents of the axis setting process executed by the control unit of the display device for one embodiment. A diagram showing an example of display contents displayed on a display unit of a display device for one embodiment (No. 1). A diagram showing an example of display contents displayed on a display unit of a display device for one embodiment (No. 2). A diagram showing an example of display contents displayed on a display unit of a display device for one embodiment (No. 3). A diagram showing an example of display contents displayed on a display unit of a display device for one embodiment (No. 4). A diagram showing an example of display contents displayed on a display unit of a display device for one embodiment (No. 5). A diagram showing an example of display contents displayed on a display unit of a display device for one embodiment (No. 6). A diagram showing an example of display contents displayed on a display unit of a display device for one embodiment (No. 7). A diagram showing another example of a ruler used in a method for measuring a tatami mat area for one embodiment. A diagram showing an example of a tatami mat, showing a conventional example. A diagram showing a conventional example and showing a tatami reference system as a table. A diagram showing a conventional example and showing an example of a method of describing a room size.

Hereinafter, one embodiment will be described with reference to the drawings.
First, with reference to FIGS. 1 and 2, an outline of a series of steps until the tatami mats are laid in the room 10 of FIG. 1 will be described. FIG. 1 shows a room 10 in which tatami mats are laid, and assumes a general 6 tatami mat room. The room 10 has an inner frame 11 made of a building material such as wood. The area surrounded by the inner frame 11 is the tatami laying area 12 on which tatami mats A to F are laid. The room 10 is not limited to 6 tatami mats.

In the present embodiment, as shown in FIG. 2, first, the measurement step of the tatami mat laying area is performed in step S11. As a result, the size of the area where tatami mats are laid, that is, the tatami mat laying area 12 in the room 10 shown in FIG. 1 is measured. Next, the allocation step is executed in step S12. As a result, the sizes of the tatami mats A to F laid in the room 10 are assigned based on the size of the room 10 measured in step S11. This allocation may be performed manually by a person, or may be performed automatically by a computer using an allocation device. Next, in step S13, the tatami manufacturing process is executed. As a result, each tatami mat A to F is manufactured according to the size of each tatami mat A to F allocated in step S12. Then, in step S14, the tatami mat laying step is executed. As a result, the tatami mats A to F manufactured in step S13 are laid at a predetermined position in the room 10.

Here, the basic shape of the tatami mat is an accurate rectangle in which the ratio of the long side dimension L and the short side dimension W is 2: 1 and each corner portion is a right angle. Therefore, when the tatami mats A to F are arranged as shown in FIG. 1, the shape of the room 10, that is, the shape of the tatami mat laying area 12, is the four corners of the inner frame 11 as shown by the two-dot chain line in FIG. Ideally, the portions should be formed at right angles and the ratio of the long side to the short side of the inner frame 11 should be an accurate rectangle of 4: 3. If the room 10 is formed in an accurate rectangle as shown by the alternate long and short dash line in FIG. 1, all the tatami mats A to F can be manufactured in the basic shape. Therefore, the tatami mats A to F can be mass-produced uniformly in the same basic shape, and the installation positions of the tatami mats A to F are not limited, so that the productivity and workability related to the installation are good.

However, in reality, the shape of the room 10, that is, the shape of the tatami mat laying area 12, is affected by the expansion and contraction of the inner frame 11 and the error during construction of the room 10, so that it may be distorted as shown by the solid line in FIG. It is extremely rare for it to undulate into an accurate rectangle. Therefore, the sizes of the tatami mats A to F that are actually manufactured are slightly different in size according to the distortion of the room 10, and the installation position is also limited to a specific position. Therefore, although the tatami mats A to F seem to have the same size at first glance, in reality, they are individually and delicately adjusted according to the shape of the room 10.

Here, in FIG. 2, each step of steps S11 to S14 may be performed by the same worker, but is often performed by different workers and businesses. For this reason, it is very important for manufacturing tatami mats to accurately measure the size of the tatami mat laying area 12 and accurately convey the measured dimensions to the subsequent process without misunderstanding.

Incidentally, in the production of tatami mats, the sides in contact with other tatami mats are usually formed in a straight line, and the sides in contact with the inner frame 11 are adjusted according to the distortion of the inner frame 11. Therefore, in the example of FIG. 1, since all four sides of tatami mat A are in contact with other tatami mats B to F, all four sides of tatami mat A are formed in a straight line. That is, the tatami mat A is formed into an accurate rectangle in which the ratio of the basic shape, that is, the long side dimension L and the short side dimension W is 2: 1 and each corner portion is a right angle. On the other hand, in tatami mats B to F, the sides in contact with other tatami mats are formed in a straight line, but the sides in contact with the inner frame 11 are adjusted according to the distortion of the inner frame 11.

(Measurement of tatami mat laying area)
Next, a measurement method in the measurement step of the tatami mat laying area shown in step S11 of FIG. 2 will be described with reference to FIGS. 3 to 10. In the present embodiment, the measurement step of the tatami mat laying area includes a reference line setting step, a one-side area measurement step, and a other-side area measurement step. The operator first executes the reference line setting step prior to the execution of the one-sided region measurement step and the other-side region measurement step. As shown in FIG. 3, the reference line installation step is a step of installing linear reference lines 21 and 22 in the tatami mat laying area 12.

As shown in FIG. 3, in the present embodiment, the reference lines 21 and 22 are composed of two reference lines extending in the vertical direction and the horizontal direction of the room 10 and orthogonal to each other. It is desirable that the reference lines 21 and 22 are parallel to the floor surface of the tatami mat laying area 12. In this embodiment, the reference lines 21 and 22 are configured by a laser beam. That is, in the present embodiment, the reference lines 21 and 22 are installed using the reference device 20. The reference device 20 irradiates two orthogonal laser beams. The reference lines 21 and 22 are not limited to the laser beam, and a linearly stretched thread may be used.

The reference device 20 can be installed at any position and in any orientation in the room 10. However, in order to facilitate the measurement, the reference device 20 should be installed near the point S (E) shown in FIG. 1, that is, on the upper front side of the tatami mat A and near the point where the corners of the tatami mat E and the tatami mat F meet. Is preferable. Further, in this case, it is preferable to install the reference device 20 in a posture in which the reference lines 21 and 22 are as parallel as possible to the long side and the short side of the room 10, respectively.

Next, the operator executes the one-sided region measuring step and the other-sided region measuring step. The one-sided area measuring step is a step of measuring the dimensions of the one-sided area divided by the reference lines 21 and 22 in the tatami mat laying area 12. The other side area measurement step is a step of measuring the dimensions of the other side area of the tatami mat laying area 12 divided by the reference lines 21 and 22.

That is, when the reference line 21 in FIG. 3 is used as a reference, of the tatami mat laying area 12, for example, the area on the lower side of the paper surface is one side of the reference line 21, and the area on the upper side of the paper surface is the other. It becomes the area on the side. In this case, the operator measures the distance dimension from the inner frame 11 to the reference line 21 in the area below the paper surface of the tatami mat laying area 12 by executing the one-side area measurement step. Further, in this case, the operator measures the distance dimension from the inner frame 11 to the reference line 21 in the area above the paper surface of the tatami mat laying area 12 by executing the other side area measurement step.

When the reference line 22 in FIG. 3 is used as a reference, the area on the left side of the paper surface of the tatami mat laying area 12 is on one side, and the area on the right side of the paper surface is on the other side. It becomes an area. In this case, the operator measures the distance dimension from the inner frame 11 to the reference line 21 in the area on the left side of the paper surface of the tatami mat laying area 12 by executing the one-side area measurement step. Further, in this case, the operator measures the distance dimension from the inner frame 11 to the reference line 21 in the area on the right side of the paper surface of the tatami mat laying area 12 by executing the other side area measurement step. The expressions of the one-sided area and the other-sided area are expressions used for convenience in order to distinguish the specific areas of the tatami mat laying area 12, and may be set in reverse to those described above.

As a result, the operator measures the distance dimension from the inner frame 11 to each of the reference lines 21 and 22. In this case, the measurement location preferably includes at least the vicinity of the four sides of the room 10, that is, the vicinity of the outer peripheral edge portion, and the central portion of the room 10, as shown by the straight lines of the arrows at both ends in FIG. The measurement location can be appropriately changed according to the size of the room 10.

The one-side region measurement step and the other-side region measurement step are performed using the ruler 30 shown in FIGS. 4 and 5. The ruler 30 is long and non-flexible. In this case, "non-bending" means that the ruler does not bend or bend to the extent that it does not bend or bend at least in a state where a force other than the weight of the ruler 30 is not acting. The bending and distortion of the ruler 30 are allowed as long as they do not interfere with the measurement.

The length dimension of the ruler 30 is 2000 mm or more, and is set to 2100 mm in this embodiment. As shown in FIG. 4, the ruler 30 has a polygonal cross section in a direction perpendicular to the longitudinal direction, and has at least one first surface 31 and one second surface 32. In the case of the present embodiment, the ruler 30 has a quadrangular cross section in the longitudinal direction, in this case a square. The ruler 30 has two first surfaces 31 and two second surfaces 32.

In this case, the first surface 31 is set to two opposing surfaces among the four surfaces of the ruler 30. Further, the second surface 32 is two surfaces facing each other among the four surfaces of the ruler 30, and is set to a surface different from the first surface 31. That is, in the present embodiment, as shown in the developed view of the ruler 30 in FIG. 5, the first surface 31 and the second surface 32 are adjacent to each other. The ruler 30 is not limited to a quadrangle in cross section, and may be a triangle or a polygon having a pentagon or more.

As shown in FIG. 5, the first surface 31 has a first scale 311. The first scale 311 is a scale in millimeters based on the metric system, not in units of scale. The first scale 311 is a scale that increases in mm units from one end P1 of both ends P1 and P2 of the long ruler 30 toward the other end P2. In this case, the first surface 31 is not provided with a scale in units of size and size.

The second surface 32 has a second scale 321. The second scale 321 is also a scale in millimeters based on the metric system, not in units of size and size, like the first scale 311. The second scale 321 is a scale that increases in mm units toward one end P1 with the other end P2 of both ends P1 and P2 of the long ruler 30 as a base point. In this case, the second surface 32 is not provided with a scale in units of scale. That is, the ruler 30 does not have a scale in units of size.

The first scale 311 and the second scale 321 are provided at intervals wider than the thickness dimension of the reference lines 21 and 22. In the case of the present embodiment, since the thickness dimensions of the reference lines 21 and 22 are about 1 mm, the scales 311 and 321 are provided in increments of 2 mm, respectively.

On the first surface 31 and the second surface 32, numbers indicating the values of the first scale 311 and the second scale 321 are provided at predetermined intervals, respectively. In this case, as shown in FIG. 5, of the two first surfaces 31, the numbers on the first scale 311 provided on one first surface 31 and the first scale provided on the other first surface 31. The numbers 311 are configured so that they can be read from different directions with the longitudinal direction of the ruler 30 in between. That is, the numbers on the first scale 311 provided on one of the first surfaces 31 are configured to be readable from the direction of the arrow X1 in FIG. Further, the numbers on the first scale 311 provided on the other first surface 31 are configured to be readable from the direction of the arrow X2 in FIG.

Similarly, of the two second surfaces 32, the numbers on the second scale 321 provided on one second surface 32 and the numbers on the second scale 321 provided on the other second surface 32 are rulers. It is configured so that it can be read from different directions across the longitudinal direction of 30. That is, the numbers on the second scale 321 provided on one of the second surfaces 32 are configured to be readable from the direction indicated by the arrow X1 in FIG. Further, the numbers on the second scale 321 provided on the other second surface 32 are configured to be readable from the direction of the arrow X2 in FIG.

When the worker executes the one-sided region measurement step and the other-side measurement step execution with reference to the reference line 21 of FIG. 3, the worker first makes the longitudinal direction of the ruler 30 perpendicular to the reference line 21. The ruler 30 is arranged so as to. Then, the operator executes the one-sided region measurement step. In the one-sided region measurement step, as shown in FIG. 6, the operator uses the end portion P1 and P2 of both ends P1 and P2 of the ruler 30 on one side with respect to the reference line 21 as the measurement base point. Set to.

Next, the operator arranges the ruler 30 so that the surface having the scale increasing from the end set as the base point is the upper surface. In the example of FIG. 6, the operator arranges the ruler 30 so that the first surface 31 faces the upper surface so that the first scale 311 increasing from the end P1 as a base point can be easily read. Then, the operator applies the end portion P1 set as the base point to the inner frame 11, arranges the ruler 30 so as to be orthogonal to the reference line 21, and in that state, the position where the reference line 21 passes on the ruler 30. To get. In this case, the operator reads the value of the first scale 311 at the position where the reference line 21 passes on the first surface 31. As a result, the operator measures the dimension from the inner frame 11 on one side of the reference line 21 to the reference line 21 in an absolute value in mm units.

The operator then performs the other side measurement step. Switching from the one-side region measurement process to the other-side region assumption process shifts the measurement base point from one end P1 without reversing the relative positional relationship between one end P1 and the other end P2. This is done by switching to the other end P2. That is, the switching from the one-sided region measurement step to the other-side region measurement step is performed by rotating the ruler 30 in the direction of arrow Ja about the axis J1 extending in the longitudinal direction as shown in FIG. This is done by sliding the ruler 30 in the longitudinal direction, as shown over 7. That is, in switching between the one-sided region measurement step and the other-side region measurement step, the ruler 30 is rotated with the axis J1 extending in the longitudinal direction of the ruler 30 as the rotation axis, and the surface located on the upper side is designated as the first surface 31. This is done by switching between the second surface 32 and the second surface 32. In this case, switching from the one-sided region measuring step to the other-sided region measuring step does not require rotation in the arrow Jb direction about the axis J2 orthogonal to the longitudinal direction of the ruler 30 shown in FIG.

When the operator executes the other-side region measurement step, the operator sets the end P2 on the other side of the reference line 21 among the both ends P1 and P2 of the ruler 30 as the measurement base point. Then, as shown in FIG. 7, the operator applies the end portion P2 set as the base point to the inner frame 11 on the opposite side of the reference line 21, and arranges the ruler 30 so as to be orthogonal to the reference line 21. Then, in that state, the position on the ruler 30 through which the reference line 21 passes is acquired. In this case, the operator reads the value of the second scale 321 at the position where the reference line 21 passes on the second surface 32. As a result, the operator measures the dimension from the inner frame 11 on the other side of the reference line 21 to the reference line 21 in an absolute value in mm units.

Then, when the one-sided region measurement step and the other-side measurement step with reference to the reference line 21 are completed, the operator performs the one-sided region measurement step with reference to the reference line 22 as shown in FIGS. 8 and 9. And the other side measurement step is performed. In this case, the operator rotates the ruler 30 from the one shown in FIGS. 6 and 7 by 90 ° as shown in FIGS. 8 and 9, and then performs the same procedure as the above-mentioned procedure for the one-sided region. Perform the measurement step and the other side measurement step.

The operator records the measurement results of the one-sided region measurement step and the other-sided region measurement described above, for example, as shown in FIG. In the example shown in FIG. 10, for example, in the center of the recording paper, a figure 40 schematically showing the room 10 and tatami mats A to F is drawn. The figure 40 may be written by the operator himself or may be written in advance on a recording sheet or the like. Then, the operator describes a numerical value indicating the measurement result of the one-side region measurement step and the other-side region measurement in an absolute value in mm at a position corresponding to each measurement point on the outside of the figure 40.

For example, in FIG. 10, the numerical value of "900" described near the corner of the figure 40 located on the upper left side of the paper surface is the reference line 21 from the left end portion of the long side on the upper side of the paper surface in the room 10 shown in FIG. It means that the straight line distance to is 900 mm. Similarly, the numerical value of "1800" described near the corner of the figure 40 located on the upper left side of the paper surface is from the upper end of the short side on the left side of the paper surface to the reference line 22 in the room 10 shown in FIG. It means that the linear distance is 1800 mm. The operator may electromagnetically record the measurement result on a personal computer, another electronic device, or the like. Then, the worker conveys the recorded contents to a later process.

(Display of tatami size)
Next, a method of displaying the sizes of the tatami mats A to F will be described with reference to FIGS. 11 to 19. The size of each tatami mat A to F shown in FIG. 1 is displayed by the display device 50 shown in FIG. The display device 50 includes an allocation device used in the allocation process shown in step S12 of FIG. 2 and a tatami manufacturing device used in the tatami manufacturing process shown in step S13, for example, a stile cutting machine, a stile sewing machine, and a flat stab. It is incorporated in sewing machines, reverse stitching machines, etc.

As shown in FIG. 11, the display device 50 includes an input unit 51, a display unit 52, and a control unit 53. The input unit 51 is configured to be able to input numerical data regarding the size of the room 10 and tatami mats. The input unit 51 is composed of, for example, a mechanical key, a key virtually provided on a touch panel, or a communication interface capable of receiving data from an external device. In this case, the communication interface may be either wired or wireless. The display unit 52 is composed of, for example, a liquid crystal panel, and can display figures, numerical values, and characters. The control unit 53 calculates and processes the numerical data input by the input unit 51 and controls the display contents of the display unit 52.

The control unit 53 is mainly composed of a microcomputer having a storage area 532 such as a CPU 531, a ROM, a RAM, and a rewritable flash memory. The storage area 532 stores a tatami-sized display program. The control unit 53 implements the axis setting processing unit 533, the graphic display processing unit 534, the numerical display processing unit 535, and the like by software by executing the tatami-sized display program in the CPU 531. The axis setting processing unit 533, the graphic display processing unit 534, the numerical display processing unit 535, and the like may be realized in hardware as, for example, an integrated circuit integrated with the control unit 53.

By executing the axis setting process, the axis setting processing unit 533 displays the shapes 60 of the tatami mats A to F to be displayed and the first axis 71 and the second axis 72 in the computer as shown in FIG. Set virtually in. The corners S of the shape 60 shown in FIG. 12 correspond to the corners S (A) to (F) of the tatami mats A to F shown in FIG. In the example of FIG. 12, among the shapes 60 of tatami mats A to F, the long side on the upper side of the paper surface in FIG. 12 is the upper front, and the long side on the lower side of the paper surface is the lower front. The first axis 71 is a linear axis passing through the long side 61 on the upper front side in the shapes 60 of tatami mats A to F to be displayed. The second axis 72 is a linear axis orthogonal to the first axis 71 at a position separated by a certain distance along the first axis 71 from one end S of the long side 61 on the upper front side.

In this case, the constant distance is set to a sharp value with no fraction, such as 500 mm and 1000 mm. For example, if the tatami mat to be displayed is one tatami mat size, that is, the length dimension of the long side is 1000 mm or more, the constant distance is set to 1000 mm. Further, for example, if the tatami mat to be displayed is a half tatami mat size, that is, a size in which the length dimension of the long side is 500 mm or more and less than 1000 mm, the constant distance is set to 500 mm.

By executing the graphic display processing, the graphic display processing unit 534 displays the tatami graphic 60 that schematically represents the tatami mats A to F to be displayed on the display unit 52, as shown in FIGS. 13 to 18. .. The graphic display processing unit 534 displays each tatami graphic 60 on the screen of the display unit 52 so that the upper front of the tatami graphic 60 of each tatami A to F is located above the display unit 52, that is, above the paper surface of FIGS. 13 to 18. Place inside. In this case, the corners S (A) to (F) of the tatami mats A to F shown in FIG. 1 are located on the upper left side in the screen of the display unit 52. In each figure and the following description, the tatami figure 60 (A) means the schematic view of the tatami A shown in FIG. 1, and the tatami figure 60 (B) means the schematic view of the tatami B. It shall mean. The same applies to the other tatami mats C to F.

Note that the rectangular figure 601 shown by the alternate long and short dash line in FIGS. 14 to 18 is a model of a tatami mat having a basic shape formed into an accurate rectangle in which the ratio of the long side dimension L to the short side dimension W is 2: 1. It is shown as a target. This basic shape 601 is a reference shape for each tatami mat A to F. The graphic display processing unit 534 may or may not display the basic shape 601 on the display unit 52. When displaying the basic shape 601 on the display unit 52, it is preferable to display the basic shape 601 and the tatami figure 60 in an overlapping manner.

By executing the numerical display processing, the numerical display processing unit 535 performs the numerical display processing, and as shown in FIGS. 13 to 18, for each tatami A to F, from the first axis 71 shown in FIG. 12 to the lower front side of each tatami A to F. The distance dimensions W1 to W3 to the long side of are displayed as absolute values in mm. In this case, the numerical display processing unit 535 displays each distance dimension W1 to W3 for each tatami mat A to F on the outside of the long side on the lower front side of the tatami figure 60, that is, on the lower side of the tatami figure 60.

Further, the numerical display processing unit 535 executes the numerical display processing, and as shown in FIGS. 13 to 18, for each tatami mat A to F, from the second axis 72 shown in FIG. 12 to each tatami mat A to F. Each distance dimension LL1, LL2, LR1, LR2 to the left and right short sides is displayed as an absolute value in mm units. In this case, the numerical display processing unit 535 displays each distance dimension LL1, LL2, LR1, and LR2 on the outside of the left and right short sides of the tatami figure 60, that is, on the left and right outside of the tatami figure 60.

Further, in the present embodiment, the numerical display processing unit 535 executes the numerical display processing to obtain the upper front dimension LT1 and the upper front dimension LT1 for each tatami mat A to F, as shown in FIGS. 13 to 18. The dimension LT2 of the lower side, which is the lower front, is displayed in the tatami figure 60. In this case, the upper side dimension LT1 = LL1 + LR1 and the lower side dimension LT2 = LL2 + LR2.

The distance dimension, that is, the constant distance from the end portion S shown in FIG. 12 to the second axis 72 is not limited to the above-mentioned 500 mm and 1000 mm, and may be 0 mm. According to this, as shown in FIG. 19, each numerical value LL1, LL2, LR1, LR2, W1 to W3 can be expressed as two-dimensional coordinates with respect to the end portion S.

According to the embodiment described above, the one-side region measurement step and the other-side region measurement step are formed in an inflexible elongated shape, and the elongated ends P1 and P2 are used as base points in mm units by the metric system. This is done using a ruler 30 with scales 311 and 321. In the one-side region measurement step, for example, the end P1 which is the base point of the ruler 30 is applied to the inner frame 11 on one side, and the ruler 30 is arranged so as to be orthogonal to the reference lines 21 and 22, and the reference line on the ruler 30 is arranged. By acquiring the positions through which 21 and 22 pass, the dimensions from the inner frame 11 on one side to the reference lines 21 and 22 are measured in absolute values in mm units. In the other-side region measurement step, for example, the reference line on the ruler 30 is in a state where the end P2, which is the base point of the ruler 30, is applied to the inner frame 11 on the other side and the ruler 30 is arranged so as to be orthogonal to the reference lines 21 and 22. By acquiring the positions through which 21 and 22 pass, the dimensions from the inner frame 11 on one side to the reference lines 21 and 22 are measured in absolute values in mm units.

According to this, the worker can measure the size of the room by the metric system without the intervention of the shakkanho method. For this reason, for example, young people and foreign workers who are newly engaged in the tatami industry can measure and record the size of the room in the familiar mm unit without handling the unfamiliar small size unit. it can. Further, each measured dimension is not expressed as a relative difference from the reference, but as an absolute value. For this reason, the numerical notation is simple and easy to see at first glance. In addition, according to the present embodiment, unlike the conventional method using the scale unit, a plurality of reference systems do not exist, but are unified into a single reference system called the metric system. Therefore, even if the area or craftsman is different, the size reading error due to the misunderstanding of the reference system does not occur.

As a result, workers such as young people and foreign workers can learn the room measurement work faster than the conventional method using the scale unit. Furthermore, the metric system is an international system of units. For this reason, it is possible to measure the size of a room in a foreign country and to produce it locally, which is much easier than before, and as a result, it is possible to promote the overseas expansion of tatami mats.

The ruler 30 of the present embodiment is configured to have a length of 2000 mm or more. Here, in the conventional tatami mat 80, the base point of measurement is set only at one end. Therefore, assuming that the tatami mat 80 having the conventional configuration is used for the one-side region measurement step and the other-side region measurement step, the measurement base point is changed when switching between the one-side region measurement step and the other-side region measurement step. Therefore, it is necessary to rotate the tatami mat 80 around the axis Z orthogonal to the longitudinal direction of the tatami mat 80 shown in FIG. Then, when the long tatami mat 80 is rotated in the room 10, the tatami mat 80 hits the wall, ceiling, furniture, etc. of the room 10, and damages the wall, ceiling, furniture, etc. of the room 10. There is a risk.

Therefore, the ruler 30 of the present embodiment has a first scale 311 that increases in mm units from one end P1 of the long end portions P1 and P2 as a base point and the other end P2. It has a second scale 321 that increases in mm units from the end portion P2 of the above and toward one end portion P1. Then, switching between the one-side region measurement step and the other-side region measurement step sets the measurement base point at one end without reversing the relative positional relationship between one end P1 and the other end P2. This is done by switching between P1 and the other end P2.

According to this, the operator switches between the one-sided region measurement step and the other-side region measurement step without rotating in the arrow Jb direction about the axis J2 orthogonal to the longitudinal direction of the ruler 30. be able to. In this case, the operator slides the ruler 30 in the longitudinal direction of the ruler 30 so that the ruler 30 is not rotated in the direction of the arrow Jb about the axis J2 as shown in FIG. It is possible to switch between the region measurement step and the other side region measurement step. Therefore, since it is not necessary to rotate the long ruler 30 in the room 10, it is possible to prevent the ruler 30 from hitting the wall, ceiling, furniture, or the like of the room 10 and damaging it.

Further, the ruler 30 of the present embodiment has a quadrangular cross section in the direction perpendicular to the longitudinal direction. Here, it is conceivable that the first scale 311 with the end P1 as the base point and the second scale 321 with the end P2 as the base point are provided on the same surface. However, in this case, since the space for describing the scales 311 and 321 is limited, the characters on the scales 311 and 321 become smaller, and as a result, it becomes difficult to see. Further, since the scales 311 and 321 with the two ends P1 and P2 as the base points are mixed, the operator is confused as to which one should be read, and the possibility of erroneous writing / measurement is increased.

Therefore, the ruler 30 has a first surface 31 having a first scale 311 and a second surface 32 having a second scale 321 which is different from the first surface 31. To switch between the one-side area measurement process and the other-side area measurement process, the ruler 30 is rotated with the longitudinal direction of the ruler 30 as the rotation axis J1 and the surface located on the upper side is formed by the first surface 31 and the second surface 32. It is done by switching.

According to this, the operator can switch the surfaces 31 and 32 provided with the scales 311 and 321 simply by rotating the ruler 30 about the axis J1 in the longitudinal direction. Therefore, the operator can more easily switch between the one-sided region measurement step and the other-side region measurement step. In this embodiment, it is not excluded that the first scale 311 with the end P1 as the base point and the second scale 321 with the end P2 as the base point are provided on the same surface.

Further, the scales 311 and 321 may be in a digital format. That is, the ruler 30 may be a digital measuring device, for example, as shown in FIG. In this case, the ruler 30 has, for example, a digital measuring instrument 35. The digital measuring instrument 35 has a first scale 311 and a second scale 321 built-in as digital scales, and measures and displays a distance with either one of the base points P1 and P2 as the base point. The operator can switch the base points P1 and P2 by operating the base point changeover switches 36 and 37. In this case, when the switch 36 is operated, the measurement reference becomes the base point P1, and when the switch 37 is operated, the measurement reference becomes the base point P2. According to this, it is possible to further reduce the error in reading the scale by the operator.

Further, the tatami-sized display device 50 of the present embodiment includes a display unit 52 capable of displaying figures and numerical values, and a control unit 53 for controlling the display contents of the display unit 52. The control unit 53 includes an axis setting processing unit 533 and a numerical display processing unit 535. The axis setting processing unit 533 is located at a position separated by a certain distance from the first axis 71 passing through the long side on the upper front side of the tatami mat to be displayed and one end S on the long side on the upper front side along the first axis 71. The second axis 72, which is orthogonal to the first axis 71, is virtually set. The numerical display processing unit 535 displays the distance dimensions W1 to W3 from the first axis 71 to the long side on the lower front side of the tatami in absolute values in mm, and from the second axis 72 to the left and right short sides of the tatami. The distance dimensions LL1, LL2, LR1, and LR2 are displayed as absolute values in mm.

According to this, the size of tatami mats can also be directly expressed in the metric system without the intervention of the shakkanho method. Therefore, as in the method of measuring the tatami mat laying area, for example, young people and foreign workers can grasp the size of tatami mats in the familiar mm unit without handling the unfamiliar scale unit. .. Furthermore, the expressed tatami size is not expressed as a relative difference from the standard, but as an absolute value. For this reason, the numerical notation is simple and easy to see at first glance. In addition, according to the present embodiment, unlike the conventional method using the scale unit, a plurality of reference systems do not exist, but are unified into a single reference system called the metric system. Therefore, even if the area or craftsman is different, the size reading error due to the misunderstanding of the reference system does not occur.

Further, the control unit 53 of the present embodiment further includes a graphic display processing unit 534. The graphic display processing unit 534 displays a tatami graphic 60 that imitates a tatami mat to be displayed on the display unit 52. Then, the numerical display processing unit 535 displays the distance dimensions W1 to W3 from the first axis 71 to the long side on the lower front side of the tatami on the outside of the long side on the lower front side of the tatami figure 60, and from the second axis 72. The distance dimensions LL1, LL2, LR1, and LR2 to the left and right short sides of the tatami are displayed outside the left and right short sides of the tatami figure 60, respectively.

According to this, it becomes easy to grasp at a glance which part of the target tatami the dimensions W1 to W3, LL1, LL2, LR1 and LR2 correspond to. As a result, it is possible to more effectively suppress the occurrence of misreading or misunderstanding of numerical values.

It should be noted that the embodiment of the present invention is not limited to the embodiments described above and in the drawings, and various modifications and extensions can be made without departing from the gist thereof.

In the drawing, 10 is a room, 11 is an inner frame, 12 is a tatami mat laying area, 20 is a reference device, 21 and 22 are reference lines, 30 is a ruler, 31 is the first surface, 311 is the first scale, and 32 is the second. The surface, 321 is the second scale, 50 is the display device, 52 is the display unit, 53 is the control unit, 533 is the axis setting processing unit, 534 is the graphic display processing unit, 535 is the numerical display processing unit, and 71 is the first axis. 72 indicates the second axis.

Claims (4)

A display unit that can display figures and numerical values,
A control unit that controls the display content of the display unit is provided.
The control unit
The first axis passing through the long side on the upper front side of the tatami mat to be displayed is orthogonal to the first axis at a position separated by a certain distance from one end of the long side on the upper front side along the first axis. The axis setting processing unit that virtually sets the second axis,
The distance dimension from the first axis to the long side on the lower front side of the tatami is displayed as an absolute value in mm, and the distance dimension from the second axis to the left and right short sides of the tatami is absolute in mm. Numerical display processing unit that displays by value and
A tatami-sized display device that has. The control unit further includes a graphic display processing unit that displays a tatami figure imitating a tatami mat to be displayed on the display unit.
The numerical display processing unit displays the distance dimension from the first axis to the long side on the lower front side of the tatami on the outside of the long side on the lower front side of the tatami figure, and from the second axis to the left and right of the tatami. The distance dimension to the short side of is displayed on the outside of the left and right short sides of the tatami figure, respectively.
The tatami-sized display device according to claim 1. A program executed on a computer including a display unit capable of displaying figures and numerical values and a control unit for controlling the display contents of the display unit.
On the computer
The first axis passing through the long side on the upper front side of the tatami mat to be displayed is orthogonal to the first axis at a position separated by a certain distance from one end of the long side on the upper front side along the first axis. Axis setting process that virtually sets the second axis,
The distance dimension from the first axis to the long side on the lower front side of the tatami is displayed as an absolute value in mm, and the distance dimension from the second axis to the left and right short sides of the tatami is absolute in mm. Numerical display processing to display by value and
A tatami-sized display program that can be executed. It is possible to cause the computer to execute a graphic display process for displaying a tatami graphic that imitates a tatami mat to be displayed on the display unit.
In the numerical display processing, the distance dimension from the first axis to the long side on the lower front side of the tatami is displayed on the outside of the long side on the lower front side of the tatami figure, and from the second axis to the left and right of the tatami. It includes a process of displaying the distance dimension to the short side outside the left and right short sides of the tatami figure, respectively.
The tatami size display program according to claim 3.

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