JP2000266502A - Dimensional measuring tool for tatami mat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dimensional measuring tool for a tatami mat with a light weight that is easily handled and also capable of measuring a deviation value in plus and minus to a standard dimension of the tatami mat of a measuring object until a scale in a unit below 'Rin'. SOLUTION: The measuring tool comprises a measuring rule 2A having marks 21 indicating types of tatami mat such as 'Five-eight', 'Three-six' and 'Honma' at each position of 2-shaku and 9-sun, 3-shaku, 3-shaku and 1-sun and 5-bu from a top end with a scale 22 marked with 'Japanese-shaku, Japanese-sun, Japanese-bu', a cursor 1B fitting a slidable measuring object along the rule 2A, and attaches a vernier scale 13 for reading a reference line 11 on the cursor 1B and a scale in a unit below 'Rin' with the line 11 as a starting point.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dimension measuring tool for tatami mats, and more particularly to a tatami mat measuring instrument for accurately measuring a deviation value of a standard size of a tatami mat to a unit of a unit or less.

[0002]

2. Description of the Related Art As shown in FIG. 11, a conventional measuring instrument for tatami mats uses a three-meter, four-meter ruler 28 and a three-meter, six-meter ruler 29 as a single unit or a 7-meter ruler by joining them together. are doing.

[0003] The standard sizes of tatami mats are "58 (5 m 8 x 2 m 9 m)", "36 (6 m x 3 m)", "Honma (6 m
3 × 3 × 1 × 5).

In the conventional measurement of the dimensions of tatami mats, the scales are measured on the basis of the "shaku". Two
Put a mark indicating the type of tatami mats such as "58", "36", "Honma" at each position of 2 shaku 9 shaku, 3 shaku, 3 shaku 1 shaku 5 shaku from the tip of 8, 29, Furthermore, when the two rulers 28 and 29 are spliced together to form a 7-meter ruler, the five rulers 8
"58", "36", "6", "6", "3"
A mark indicating the type of tatami, such as "Honma", is attached.

[0005] In the dimension measurement performed for processing a tatami mat, particularly necessary data is positive and negative values of the standard dimension of one type of tatami mat selected from "58", "36" and "Honma". It is a deviation value. Therefore, using such rulers 28 and 29, the positive and negative deviation values from the standard dimensions marked with the type of tatami mats such as "58", "36", "Honma" are read. .

The minimum unit of the scale based on the “scale” attached to such conventional rulers 28 and 29 is “minute (about 3 mm)” corresponding to one tenth of “dimension”.

On the other hand, a tatami processing device for cutting and sewing a tatami mat is a high-performance tatami mat using numerical control.
"Half of the rin (about 0.3m
m) ”, the machining accuracy is improved to the dimensions below.

[0008]

Therefore, in order to input an accurate finished dimension to a tatami processing device,
Since it is necessary to input a unit of “Rin” corresponding to one tenth of “Min”, the tatami dimension measuring tool must be able to read at least the unit of “Rin”.

In addition, three types of standard tatami mats, “58”, “36”, and “Honma”, are employed. The data are positive and negative deviations from the standard dimensions of one type of tatami mat selected from “58”, “36”, and “Honma”. .3 mm) "is desired.

The conventional caliper reads the value of 1/10 or 1/20 of the minimum unit scale when measuring the object, but the readable value is the minimum unit scale close to the size of the object. It was not possible to read a positive deviation greater than and less than the standard dimensions of the object.

Accordingly, the present invention satisfies such a demand, is lightweight and easy to handle, and is capable of measuring a positive / negative deviation value with respect to a standard size of a tatami mat to be measured at least to a unit of "min" or less. It was conceived to provide a tool for measuring dimensions.

[0012]

The tatami size measuring instrument according to the first aspect of the present invention is provided with a graduation 22 in "scale, dimension, minute" and 2 to 9 dimensions, 3 to 3 dimensions from the tip. A ruler 2A with a mark 21 indicating the type of tatami, such as "58", "36", "Honma", etc. at each position of 3 shaku, 1 inch, 5 minutes, and a measurement that can slide along this ruler 2A And a cursor for matching the object.
The cursor is provided with a reference line 11 and a vernier scale 13 for reading units below the "R".

The tatami dimension measuring instrument according to the second aspect of the present invention is provided with a regular scale 23 having only a "minute" unit, and two, nine, three, and one dimension from the end. A ruler 2B with a mark 21 indicating the type of tatami, such as "58", "36", "Honma", etc., at each position such as 5 minutes, and a measuring object slidable along this ruler 2B. The cursor is provided with a reference line 11 and a vernier scale 13 for reading units below "R" and a regular scale 12 for "size, minute" units.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The tatami size measuring instrument of the present invention comprises a ruler provided with a regular scale and a cursor provided with a vernier scale which slides along the ruler.

There are two types of rulers used in the tatami dimension measuring tool of the present invention, and the first ruler 2A is shown in FIG.
Along the length of the surface, as shown in
The second ruler 2B is provided with a regular scale 22.
As shown in FIG. 1 (b), "minutes"
Only with a regular scale 23, both rulers 2A,
In both 2B, the mark 21 indicating the type of tatami mat, such as "58", "36", "Honma", is attached to each position of 2 shaku, 9 shaku, 3 shaku, 3 shaku, 1 shaku, 5 min from the tip. I have.

When the two rulers are spliced into the rulers 2A and 2B to form a 7-meter ruler, five meters are measured from both ends.
Marks indicating the types of tatami mats, such as "58,""36," and "Honma," are also attached to the respective positions of the shaku, 8 shaku, 6 shaku, and 6 shaku, 3 shaku (see FIG. 11).

In the tatami dimension measuring instrument of the present invention, there are four types of transparent cursors to be slid along the ruler, and the first cursor 1A is located at the center as shown in FIG. A reference line 11 is attached, and “19 minutes” is set on one side (upper side in the figure) of the cursor 1A symmetrically with respect to the center part.
A vernier scale 13 equally divided into 0 is provided, and positive and negative numerical values are provided on both right and left sides along the vernier scale 13.

As shown in FIG. 2 (b), the second cursor 1B is provided with a reference line 11 at one side (for example, left side) and a reference line 11 at one side (upper side in the figure) of the cursor 1B. Vernier scale 13 that divides "19 minutes" into 20 equal parts on the right side based on line 11
Are attached to the vernier scale 13, and positive and negative numerical values are divided into upper and lower stages.

As shown in FIG. 2 (c), the third cursor 1C has a reference line 11 at the center, and is symmetrical on one side (upper side in the figure) of the cursor 1C with the center at the center. "19
A subscale graduation 13 obtained by dividing the "minute" into 20 equal parts is attached, and the other side (the lower side in the figure) of the cursor 1C is symmetrical with the "dimension, minute" in the right and left scales with respect to the center line 11 in the center. Numeral 12 is attached, and positive and negative numerical values are attached on both right and left sides along the vernier scale 13.

As shown in FIG. 2D, the fourth cursor 1D is provided with a reference line 11 at the center thereof, and is positioned on one side (upper side in the figure) of the cursor 1D on the right side with respect to the reference line 11. "19
The scale "13" obtained by dividing the minute "20" into equal parts is attached, and positive and negative numbers are attached to the scale "13" in two upper and lower stages.
On the other side (lower side in the figure) of the 1D, a regular scale 12 is attached in “dimensions, minutes” symmetrically with respect to the center line 11.

Next, one of the two types of scales 2A and 2B configured as described above and four types of cursors 1A, 1B and 1
Four embodiments combining one of C and 1D and a measurement procedure thereof will be described.

Before measuring the dimensions of the tatami mat,
It is necessary to determine which of “36” and “Honma” is to be measured. In the case of a new construction, the designer usually specifies on which basis the tatami is to be made, but when there is no designation and when the tatami has been laid and the years have passed, it was measured with a tape measure etc. After deciding which standard to measure based on the dimensions of the room and the number of tatami mats in the room, the measurement is performed.

(First Embodiment) As shown in FIG. 3, a first embodiment of a tatami dimension measuring instrument according to the present invention is a
Of the ruler 2A and the first cursor 1A.

Next, a procedure for measuring the size of the tatami mat using the tatami mat dimension measuring tool of the first embodiment will be described.

The ruler 2A is placed on the tatami mat to be measured, the tip (left side in the figure) of the ruler 2A is placed on one end of the tatami mat, the cursor 1A is moved, and the reference line 11 of the cursor 1A is moved to the other end of the tatami mat. Adjust to

For example, when measuring a tatami mat on the basis of "36", the reference line 11 of the cursor 1A is on the right side of the mark 21 of "36". Based on the interval, it is found that the standard "36" tatami mat is 6-7 minutes larger than the standard "36" tatami mat, and the graduation that matches the graduation 22 of the ruler 2A and the right graduation (positive graduation) of the vernier graduation 13 By reading "8", it can be seen that the dimensions of the standard "36" tatami mat are 6/8 larger than the standard.

If the type of tatami mat is "Honma", the reference line 11 of the cursor 1A is on the left side of the "Honma" mark 21. Of the standard "Honma" tatami mat is 8 to 9 minutes smaller than that of the standard tatami mat, and the scales on the left side of the regular scale 22 of the ruler 2A and the vernier scale 13 of the cursor 1A ( By reading the scale "-2" that matches the negative scale), it can be seen that the size of the standard "Honma" tatami mat is smaller than the standard tatami mat by 8/2.

(Second Embodiment) As shown in FIG. 4, a second embodiment of the tatami dimension measuring tool according to the present invention
The first ruler 2A and the second cursor as in the embodiment of FIG.
1B and 1B.

Next, a procedure for measuring the size of a tatami mat using the tatami mat dimension measuring tool according to the second embodiment will be described.

The ruler 2A is placed on the tatami mat to be measured, the tip (left side in the figure) of the ruler 2A is placed on one end of the tatami mat, the cursor 1B is moved, and the reference line 11 of the cursor 1B is moved to the other end of the tatami mat. Adjust to

For example, when measuring a tatami mat on the basis of "36", the distance from the reference line 11 of the cursor 1B to the mark 21 of "36" on the ruler 2B is checked, and the standard "36" is measured. It turns out that it is 6-7 minutes larger than the size of the tatami mats
By reading the scale "8" which coincides with the "positive scale" of the cursor 22 and the vernier scale 13 of the cursor 1B, it can be seen that the size of the standard "36" tatami mat is 8/6 larger.

If the type of tatami mat is "Honma", the mark 21 of "Honma" on the ruler 2A moves from the reference line of the cursor 1B to the reference line.
Based on the interval up to 11, it was found that the size of the standard "Honma" tatami mat was 8 to 9 minutes smaller, and the "negative scale" of the scale 2 of the ruler 2A and the vernier scale 13 of the cursor 1B By reading the scale "-2" which coincides with the above, it can be seen that the size of the standard "Honma" tatami mat is smaller than the standard tatami mat by 8/2.

(Third Embodiment) As shown in FIG. 5, a third embodiment of the tatami dimension measuring instrument according to the present invention
Is combined with the third cursor 1C.

Next, a procedure for measuring the size of a tatami mat using the tatami mat dimension measuring tool according to the third embodiment will be described.

The ruler 2B is placed on the tatami to be measured, the tip (left side in the figure) of the ruler 2B is placed on one end of the tatami, the cursor 1C is moved, and the reference line 11 of the cursor 1C is moved to the other end of the tatami. Adjust to

For example, when measuring the tatami mat on the basis of "36", the cursor 1C is set based on the normal scale 12 of the cursor 1C.
Looking at the distance from the reference line 11 of the ruler 2 to the mark 21 of the "36" of the ruler 2B, it can be seen that it is 6 to 7 minutes larger than the standard "36" tatami mat. By reading the scale “8” which matches the scale (positive scale) on the right side of the vernier scale 23 of the cursor 1C and the vernier scale 13 of the cursor 1C, it is 6 / 8th smaller than the standard “36” tatami size. You can see that it is large.

If the type of tatami mat is "Honma", the mark 21 of "Honma" on the ruler 2B is moved to the reference line of the cursor 1C.
Based on the interval up to 11, it can be seen that it is 8 to 9 minutes smaller than the standard "Honma" tatami mat, and the scale on the left of the regular scale 23 of the "minute" of the ruler 2B and the vernier scale 13 of the cursor 1C By reading the scale "-2" that matches the (negative scale),
It can be seen that the size of the standard "Honma" tatami mat is smaller than that of the standard tatami mat by 8/2.

(Fourth Embodiment) As shown in FIG. 6, a fourth embodiment of the tatami dimension measuring device of the present invention is a third embodiment.
This is a combination of the same ruler 2B as in the first embodiment and a transparent cursor 1D sliding along the ruler 2B.

Next, a procedure for measuring the dimensions of a tatami mat using the tatami mat dimension measuring instrument of the fourth embodiment will be described.

The ruler 2B is placed on the tatami to be measured, the tip (left side in the figure) of the ruler 2B is placed on one end of the tatami, the cursor 1D is moved, and the reference line 11 of the cursor 1D is moved to the other end of the tatami. Adjust to

For example, when measuring a tatami mat on the basis of "36", the cursor 1D is measured based on the scale 12 of the cursor 1D.
Based on the distance from the reference line 11 of the ruler 2B to the mark 21 of "36" on the ruler 2B, it can be seen that the dimension is 6-7 minutes larger than the standard "36" tatami mat. By reading the positive numerical value “8” on the scale where the full scale graduation 23 of the cursor and the vernier graduation 13 of the cursor 1D match, it is 6/8 larger than the standard “36” tatami size I understand.

If the type of the tatami mat is "Honma", the mark 21 of the "Honma" of the ruler 2B is moved to the reference line of the cursor 1D.
Based on the interval up to 11, it was found that it was 8 to 9 minutes smaller than the standard "Honma" tatami mat, and the scale 2 of the "minute" of the ruler 2B coincided with the vernier scale 13 of the cursor 1D. By reading the negative value "-2" on the scale, it can be seen that the size of the standard "Honma" tatami mat is smaller by 8/2.

(Fifth Embodiment) A fifth embodiment of a tatami dimension measuring instrument according to the present invention uses the same ruler 2A or 2B as the first to fourth embodiments, and is shown in FIG. In this manner, the transparent cursor 1E that straddles the ruler 20 and slides along the ruler.

The vertical plane of the cursor 1E straddling the rulers 2A and 2B
16 is suspended to the vicinity of the bottom of the ruler 20, and the vertical surface 16
The reference line 15 is attached to the bottom surface of. Then, at least the reference line 11 and the vernier scale are provided on the transparent upper surface of the cursor 1E.
13 is attached.

The procedure for measuring the dimensions of the tatami mat using the tatami mat dimension measuring instrument of the fifth embodiment is as follows: the ruler 20 is placed on the tatami mat to be measured, and the tip of the ruler 20 is attached to the tatami mat. By placing the cursor 1E on one end and moving the cursor 1E so that the reference line 15 on the bottom surface of the vertical surface 16 of the cursor 1E is aligned with the other end of the tatami mat, measurement can be performed in the same manner as in the first to fourth embodiments. it can.

(Sixth Embodiment) A sixth embodiment of the tatami dimension measuring instrument of the present invention uses the same ruler 2A or 2B as the first to fourth embodiments, and is shown in FIG. Thus, the cursor 1F that straddles the ruler 20 and slides along the ruler 20.

The cursor 1F has a transparent window 18, forms a slope 14 on two sides in the longitudinal direction, and attaches a reference line 15 to the slope 14. The transparent window 18 is provided with at least the reference line 11 and the vernier scale 13.

The procedure for measuring the size of a tatami mat using the tatami mat dimension measuring tool of the sixth embodiment is as follows. The ruler 20 is placed on the tatami mat to be measured, and the tip of the ruler 20 is attached to the tatami mat. The cursor 1F is moved to the first end by moving the cursor 1F so that the reference line 15 attached to the slope 14 of the cursor 1F is aligned with the other end of the tatami mat.
The measurement can be performed in the same manner as in the fourth to fourth embodiments.

(Seventh Embodiment) The first embodiment described above
In the sixth to sixth embodiments, the tip portions of the scales 2A, 2B, and 20 and the cursors 1A to 1F are not provided with claw pieces that match the measurement object, but as shown in the perspective view of FIG.
A claw 27 may be provided at the tip of 20, and a claw 17 may also be provided on the cursor 10 to make the measurement more convenient.

The claw pieces 27 at the tip of the ruler 20 include:
As shown in the perspective view of FIG. 10, it is more convenient to provide a nail piece 27R for measuring with the nail piece of the ruler 20 as an internal reference and a nail piece 27Z for measuring with the nail piece of the ruler 20 as an external reference.

(Other Embodiments) In each of the above embodiments, "58", "36",
Although “Honma” is displayed, a graphic indicating the type of tatami mat may be displayed instead of this display.

[0052]

As is clear from the description based on the above embodiment, according to the tatami size measuring instrument of the present invention, the standard size of the tatami mat is lightweight, easy to handle, and requires no skill. At least "Rin"
It is possible to measure with high accuracy up to the unit.

[Brief description of the drawings]

FIG. 1 is a plan view showing a ruler used in a tatami dimension measuring instrument of the present invention;

FIG. 2 is a plan view showing a cursor used in the tatami dimension measuring instrument of the present invention;

FIG. 3 is a plan view showing a first embodiment of the tatami dimension measuring tool according to the present invention;

FIG. 4 is a plan view showing a second embodiment of the tatami dimension measuring tool according to the present invention;

FIG. 5 is a plan view showing a third embodiment of the tatami dimension measuring tool according to the present invention;

FIG. 6 is a plan view showing a fourth embodiment of the tatami dimension measuring tool according to the present invention;

FIG. 7 is a perspective view showing a fifth embodiment of the tatami dimension measuring instrument according to the present invention;

FIG. 8 is a perspective view showing a sixth embodiment of the tatami dimension measuring instrument of the present invention;

FIG. 9 is a perspective view showing a seventh embodiment of the tatami dimension measuring instrument of the present invention;

FIG. 10 is a perspective view showing a modification of the seventh embodiment of the tatami dimension measuring tool of the present invention;

FIG. 11 is a diagram illustrating a conventional ruler for measuring tatami dimensions.

[Explanation of symbols]

 1A to 1F Cursor 2A, 2B Ruler 11 Reference line 13 Vernier scale 14 Slope 17, 27 Nail piece 12, 22 Regular scale

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takehiko Kumagashi 190 Hikai, Tatsuno-cho, Tatsuno-shi, Hyogo Prefecture Far East Production Machinery Co., Ltd. (72) Inventor Yasuaki Matsui 190 Hikai, Tatsuno-cho, Tatsuno-shi, Hyogo Far East Inside the Machine Co., Ltd.

Claims (7)

[Claims] 1. A scale with a unit of “scale, dimension, minute” is attached, and “58”, “3”, “3”, “1”, 5 minutes, etc. are placed at each position from the end, such as 9 ”, 3”, 3 ”, 1” and 5 minutes. (6), a ruler with a mark indicating the type of tatami such as "Honma", and a cursor that can be slid along the ruler to match a measurement object. A dimensional measurement tool for tatami mats, which has a vernier scale for reading a unit. 2. Attach a regular scale in units of “minutes”,
A ruler with a mark indicating the type of tatami, such as "58", "36", "Honma", etc. at each position such as 2 shaku 9 shaku, 3 shaku, 3 shaku 1 shaku 5 min from the end, and the scale A cursor that can be slid along the cursor, and has a reference line and a vernier scale for reading units below “R” and a regular scale for “dimension, minute” units. A dimension measuring tool for tatami mats. 3. The method according to claim 1, wherein a positive or negative deviation value from a mark indicating a type of tatami such as “58”, “36”, “Honma” can be read. The dimension measurement tool for tatami described. 4. The cursor according to claim 1, wherein the bottom of the cursor slidable on the ruler is flat, and is aligned with or near the rear surface of the ruler, and a reference line is provided on the bottom surface of the cursor. The dimension measuring device for tatami according to claim 1 or 2. 5. The tatami dimension measuring instrument according to claim 1, wherein a slope is formed on a longitudinal side surface of the cursor slidable on the ruler, and the slope is provided with a reference line. . 6. The tatami dimension measuring instrument according to claim 1, wherein a claw piece is provided at the tip of the ruler and at the cursor to be applied to the object to be measured. 7. The tatami mat according to claim 6, wherein the claw pieces provided at the tip of the ruler include an outer reference claw piece that abuts on the measurement object and an inner reference claw piece that sandwiches the measurement object. Dimension measuring tool.