JP2023174315A - Ruler, method for using ruler, ruler set, and method for using ruler set - Google Patents

Abstract

To provide a ruler that has improved portability and easily stored, a method for using a ruler, a ruler set, and a method for using a ruler set.SOLUTION: A ruler 1 includes a plate-like body unit 2 having a predetermined total length and provided with the total of two rows of scales having numerical values 11, 12 of the same unit along a length direction on one surface or both surfaces. One end 2a in a longitudinal direction of the body unit 2 has an end face perpendicular to the longitudinal direction. The scale has the numerical value 11 indicating the length from the one end 2a in the longitudinal direction of the body unit 2 and the numerical value 12 indicating a value obtained by adding the length from the one end 2a in the longitudinal direction to the entire length of the body unit 2.SELECTED DRAWING: Figure 1

Description

The present invention relates to a ruler, a method of using a ruler, a set of rulers, and a method of using a set of rulers.

To record the growth of children and family members, marks indicating their height along with their names and dates are sometimes engraved or engraved on pillars of houses. However, it is difficult to maintain these records because the marks recorded on the pillars may not be moved or may disappear due to moving or home renovation.

Therefore, as described in Patent Documents 1 to 3 below, it has been proposed that a scale or ruler having graduations can be attached to a pillar or wall. By recording marks indicating height on these scales or rulers, unlike the case of directly marking a pillar or the like, it is possible to preserve a record of the child's growth even if the child moves.

Publication No. 48-41091 Utility model registration No. 3116411 Japanese Patent Application Publication No. 2016-182804

Human height varies from infants to adults by around 1 meter or more, and if you want to record it over many years, you will need a ruler with a total length of about 200 cm. In Patent Documents 2 and 3, the ruler is made foldable or divided/assembled to make it easier to carry.

However, if you try to measure the height of an adult by placing the end of the ruler on the floor, the ruler, which has a total length of about 200 cm even when folded or split, is heavy, so it is not necessarily easy to carry. is not limited. Further, when a ruler is folded or divided, a plurality of plates constituting the ruler are stacked on top of each other and become thicker, requiring a thicker space for storage. These problems become particularly noticeable when the ruler is made of wood or a thick board.

Furthermore, in the case of a split/assembly type, care must be taken during storage to ensure that each board does not fall apart or lose even one board.

The present invention has been made in view of these circumstances, and provides a ruler, a method for using the ruler, a ruler set, and a method for using the ruler set that can further improve portability and are easy to store. The purpose is to provide

In order to solve the above problems, the ruler, the method of using the ruler, the ruler set, and the method of using the ruler set of the present invention employ the following means.
That is, the ruler according to the present invention includes a plate-shaped main body having a predetermined overall length and provided with a scale having a total of two or more rows of numerical values in the same unit along the length direction on one or both sides, One end in the length direction of the main body has an end face perpendicular to the length direction, and the scale has a first numerical value indicating the length from the one end of the main body in the longitudinal direction, and and a second numerical value indicating a value obtained by adding the length from one end in the longitudinal direction to the total length of the section.

According to this configuration, in the plate-shaped main body having a predetermined overall length, a scale having a total of two or more rows of numerical values in the same unit is provided along the length direction on one or both sides, and the scale is The first numerical value indicates the length from one end in the longitudinal direction of the body part, and the second numerical value indicates the value obtained by adding the length from one end in the longitudinal direction to the total length of the main body part. Moreover, since one lengthwise end of the main body has an end face perpendicular to the length direction, the main body can be easily installed perpendicular to the floor.

When the main unit is installed perpendicular to the floor, it is possible to measure the height (stature) of the object (person) from the floor to the other end of the main unit in the length direction (up to one full length). . Further, when one longitudinal end of the main body is installed on the floor, the other longitudinal end of the main body is set as the reference position, and when one longitudinal end of the main body is installed at the reference position, that is, When the installation position of the main body is shifted from the floor by one full length of the main body, the height of the object to be measured can be measured by one to two full lengths of the main body. At this time, the main body is provided with a second numerical value, and since the second numerical value indicates the sum of the total length of the main body and the length from one end of the main body in the longitudinal direction, the measurer can You can quickly find out the height of the object from the floor.

In the above invention, a plurality of holes may be formed in the main body.
According to this configuration, by using the plurality of holes formed in the main body part, it is possible to hook and attach a metal fitting (such as a hook) along the surface of the ruler while the ruler is installed along the wall surface.

The method for using the ruler according to the present invention includes the steps of: installing one longitudinal end of the main body on the floor; and measuring the height of the object along the main body installed on the floor. Be prepared.

According to this configuration, since one lengthwise end of the main body is installed perpendicular to the floor, the height of the object to be measured from the floor surface to the other lengthwise end of the main body (up to one full length) can be measured.

A method of using the ruler according to the present invention is such that when one longitudinal end of the main body is installed on the floor, the other end of the main body in the longitudinal direction is set as a reference position, and the ruler of the main body is set at the reference position. The measuring method includes the step of installing one end in the length direction, and the step of measuring the height of the object to be measured along the installed main body portion based on the reference position.

According to this configuration, when one longitudinal end of the main body is installed on the floor, the other longitudinal end of the main body is set as a reference position, and one longitudinal end of the main body is installed at the reference position. , the height of the object to be measured can be measured by one to two total lengths of the main body.

A ruler set according to the present invention is a ruler set including the above-described ruler and a support for supporting an end portion of the main body portion in the longitudinal direction, the ruler set in the longitudinal direction of the main body portion. A notch is formed at one end or the other end in the length direction of the main body according to the shape of the support, and the support is formed on one side and fixed to a pillar or wall. and a support part capable of supporting the main body in contact with the notch, the other longitudinal end of the main body, or one longitudinal end of the main body.

According to this configuration, the ruler set includes the above-described ruler and a support, and the support supports the longitudinal end of the main body of the ruler. The ruler has a notch cut out according to the shape of the support at one end in the length direction of the main body or the other end in the length direction of the main body. The support has a fixing part and a support part, one side of the support is fixed to the wall by the fixing part, and the main body of the ruler is supported by the support part. The support part supports the main body while being in contact with a notch formed at one longitudinal end of the main body or the other longitudinal end of the main body, It supports the main body while being in contact with one end in the direction.

A method of using the ruler set according to the present invention is to set the other longitudinal end of the main body part as a reference position when one longitudinal end of the main body part is installed on the floor, and set the main body part at the reference position. installing the notch of the ruler or the one lengthwise end of the main body part on the support such that the one lengthwise end is installed; and measuring the height of the object to be measured.

According to this configuration, when the notch of the ruler is installed in the support, one lengthwise end of the main body is set on the floor and the other longitudinal end of the main body is set as the reference position, and the ruler is placed in the reference position. One lengthwise end of the main body is installed. As a result, the height of the object to be measured can be measured by one to two total lengths of the main body.

According to the present invention, two or more rows of numbers are provided on the scale, and even if the total length of the ruler is shorter than the height required to measure the height of an adult, it is possible to measure the height of a child and an adult. It can be used for any height measurement. Therefore, the ease of transportation can be further improved, and storage can be facilitated.

FIG. 1 is a front view showing a ruler according to a first embodiment of the present invention. FIG. 2 is a rear view showing the ruler according to the first embodiment of the present invention. FIG. 3 is an explanatory diagram showing how to use the ruler according to the first embodiment of the present invention. It is a front view showing a modification of the ruler according to the first embodiment of the present invention. FIG. 7 is an explanatory diagram showing how to use a ruler set according to a second embodiment of the present invention. FIG. 7 is a front view showing a ruler according to a second embodiment of the present invention. It is a longitudinal cross-sectional view showing a ruler set according to a second embodiment of the present invention. FIG. 7 is a partially enlarged perspective view showing a ruler set according to a second embodiment of the present invention. FIG. 7 is a partially enlarged perspective view showing a ruler set according to a second embodiment of the present invention. It is a front view which shows the modification of the ruler based on 2nd Embodiment of this invention. It is a longitudinal cross-sectional view showing a modification of the ruler set according to the second embodiment of the present invention.

<First embodiment>
Hereinafter, a ruler 1 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 4.
As shown in FIGS. 1 and 2, the ruler 1 according to this embodiment includes a plate-shaped main body portion 2 having a predetermined overall length that is long in one direction. FIG. 1 is a front view of the ruler 1, and FIG. 2 is a rear view of the ruler 1. The total length of the main body portion 2 is, for example, 100 cm. In this case, as shown in FIG. 3(A), when the main body part 2 is installed perpendicularly to the floor 20, a person (measurement target) from the floor surface 0 cm to 100 cm, which is one full length of the main body part 2. The height (height) of a person can be measured. In addition, as shown in FIG. 3(B), if the installation position of the main body 2 is shifted upward by 100 cm, which is one full length of the main body 2, with respect to the floor, It is possible to measure the height of a person whose total length is 200cm or more, which is 100cm or more.

As shown in FIGS. 1 and 2, the main body 2 has a scale on one or both sides of the board, and can record marks indicating the measured height, name, date, etc. on the board. There is a lot of space. The material of the main body portion 2 is, for example, wood. Note that the material of the main body portion 2 is not limited to wood, and may be a synthetic resin material, a metal material, or the like.

Further, one longitudinal end 2a of the main body 2 has an end face perpendicular to the longitudinal direction of the main body 2. Thereby, when the lengthwise one end 2a of the main body part 2 is installed on the floor 20, the main body part 2 is likely to be installed perpendicularly to the floor 20.

As shown in FIG. 1, for example, the main body part 2 is provided with a scale having, for example, two rows of numerical values 11 and 12 in the same unit along the length direction on one side. Each column has numerical values in the same unit, so if the numerical values in one column are in metric units, the numerical values in the other columns are also in metric units. The numerical value 11 (first numerical value) in one of the two columns indicates the length from the end surface, which is one end 2a in the length direction of the main body portion 2. The numerical value 12 (second numerical value) in the other of the two columns indicates the value obtained by adding the length from the end surface, which is one end 2a in the length direction, to the total length of the main body portion 2. For example, when the total length of the main body portion 2 is 100 cm, the first column has a numerical value 11 between 0 and 100 cm, and the second column has a numerical value 12 between 100 cm and 200 cm. The number 12 in the second column indicates the total length of the main body 2 plus the length from the end surface of one end 2a in the length direction, so the installation position of the main body 2 is determined by adjusting the installation position of the main body 2 with respect to the floor. 2, the measurer can quickly determine the height of the person standing on the floor.

Note that the scales provided on the main body portion 2 may be provided in one row on one side and two rows in total on both surfaces, or may be provided in three or more rows in total on one or both surfaces. In the example shown in FIGS. 1 and 2, two rows of scales are provided on the front surface, and one row of scales is provided on the back surface.

As shown in FIGS. 1 and 2, the main body 2 is pre-formed with a through hole 7 through which a screw 8 (see FIG. 3) or a nail can be inserted for installing the main body 2 on a wall or pillar. may be done. The length of the main body portion 2 in the width direction, that is, in the direction perpendicular to the length direction, is not particularly limited. If the main body part 2 is wide, the number of people whose heights can be recorded can be increased, and by providing multiple rows of areas on the board surface, the heights of each person can be recorded in each area.

Moreover, the main body part 2 may be a perforated board in which a plurality of holes 9 are formed, as shown in FIG. The plurality of holes 9 are provided, for example, at equal intervals. By using the plurality of holes 9 formed in the main body part 2, a metal fitting (such as a hook) can be hooked and attached along the surface of the ruler 1 while the ruler 1 is installed along the wall surface.

In addition, in order to attach the metal fittings to the holes 9 of the perforated board, it is preferable that the main body part 2 be installed parallel to the wall surface with a predetermined gap from the wall surface, rather than being installed closely to the wall. .

A method of using the ruler 1 according to the embodiment described above will be explained.
Ruler 1 has a scale, so it can be used as a regular ruler, for example by using the surface shown in the example in Figure 2, but it can also be used for measuring height by being installed vertically along a pillar or wall. Can be used as a ruler.

First, as a first height measurement method, one lengthwise end 2a of the main body 2 is placed on the floor 20, as shown in FIG. 3(A). At this time, the main body part 2 is installed perpendicularly to the floor 20. Then, the height of the person is measured along the main body part 2 installed on the floor 20. If the total length of the main body part 2 is 100 cm, by installing the main body part 2 perpendicularly to the floor 20, the ruler 1 can be used to measure the height of a person from 0 cm on the floor to 100 cm, which is one full length of the main body part 2. You can measure your height.

In addition, as a second height measurement method, the height of the other longitudinal end 2b of the main body 2 when one longitudinal end 2a of the main body 2 is installed on the floor 20 as shown in FIG. The reference position P1 is set, and as shown in FIG. 3(B), one longitudinal end 2a of the main body portion 2 is installed at the reference position P1. Then, the height of the person is measured along the main body 2 installed based on the reference position P1.

When the total length of the main body 2 is 100 cm, the reference position P1 is the position of the other longitudinal end 2b of the main body 2 when one longitudinal end 2a of the main body 2 is installed on the floor 20, that is, the floor surface. The position (height) is 100 cm from Then, as shown in FIG. 3(B), one end 2a in the length direction of the main body part 2 is installed at a position 100 cm from the floor surface. Therefore, the main body part 2 is installed so as to be shifted upward by 100 cm, which is one full length of the main body part 2, with respect to the floor surface. Thereby, the height of a person can be measured using the ruler 1 from 100 cm, which corresponds to one total length of the main body portion 2, to 200 cm, which corresponds to two total lengths of the main body portion 2.

After the height is measured, a mark indicating the height, a name, and a date may be recorded on the board surface of the main body 2. Note that a mark, name, birthday, weight, etc. may be recorded on the plate surface of the main body 2 at a position corresponding to the child's height at the time of birth. Thereby, the ruler 1 can be used as a record of the child's growth from the time of birth.

In the above embodiment, a case has been described in which the total length of the main body portion 2 is 100 cm, but the total length is not limited to this example. For example, the total length of the main body portion 2 may be 70 cm. When the main body part 2 is installed perpendicularly to the floor 20, the height (height) of a person (measurement target) can be measured from 0 cm on the floor to 70 cm, which is one full length of the main body part 2. In addition, if the installation position of the main body part 2 is shifted upward by 70 cm, which is one full length of the main body part 2, with respect to the floor, the distance is between 70 cm, which is one full length of the main body part 2, and 140 cm, which is two full lengths. The height of a person can be measured. Furthermore, if the installation position of the main body part 2 is shifted upward by 140 cm, which is two total lengths of the main body part 2, with respect to the floor surface, the total length of the main body part 2 is 140 cm or more, which is two total lengths, and no more than 210 cm, which is three total lengths. The height of a person can be measured.

In this case, in the main body part 2, scales having numerical values in the same unit, for example, in a total of three columns, are provided along the length direction on one or both sides. The numerical values in the first and second columns are the same as in the embodiment described above. The numerical value in the third column indicates the value obtained by adding the length from one end 2a in the length direction to twice the total length of the main body portion 2. The first column contains values between 0 and 70cm, the second column contains values between 70cm and 140cm, and the third column contains values between 140cm and 210cm. .

<Second embodiment>
Next, a ruler set 10 according to a second embodiment of the present invention will be described with reference to FIGS. 5 to 11.
The ruler 1 is not limited to the case where the main body part 2 is fixed to a wall or a column with screws 8 or nails, but may be fixed to a wall or a column via a support 3 as shown in FIG. The ruler set 10 includes, for example, a ruler 1 and a support 3.

As shown in FIG. 6, the ruler 1 has a notch corresponding to the shape of the support 3 at one end 2a in the length direction of the main body 2, that is, at the lower end when the ruler 1 is installed along a pillar or wall. A rounded notch 4 is formed. The cutout portion 4 is formed at the center of the main body portion 2 in the width direction. The configuration of the scale and the like on the main body 2 of the ruler 1 is the same as in the first embodiment described above, and therefore detailed explanation will be omitted. Note that, as shown in FIG. 10, the notch 4 is formed by cutting out the other end 2b in the length direction of the main body 2, that is, the upper end when the ruler 1 is installed along a pillar or wall. Good too.

As shown in FIG. 7, the support 3 has a fixing part 5 and a support part 6 that are integrally formed. The support 3 is formed of, for example, a plate-like member, and has two bent portions each having an L-shaped cross section.

The fixing part 5 is formed on one side of the support 3 and is fixed to a column or wall with a screw 13 or the like. The fixing part 5 is installed so that the plate surface of the fixing part 5 is parallel to the column or wall surface when the support 3 is fixed to the column or wall.

The support part 6 includes a plate part 6a which is continuously provided at one end of the fixing part 5 and is perpendicular to the plate surface of the fixing part 5, and a plate part 6a which is perpendicular to the plate surface of the plate part 6a and which is perpendicular to the plate surface of the fixing part 5. It has a plate portion 6b parallel to the plane. When the support 3 is fixed to a pillar or wall, the plate part 6a of the support part 6 is parallel to the floor surface, and the plate part 6b of the support part 6 is parallel to the pillar surface or wall surface. .

In addition, although the case where the support tool 3 was formed by the plate-shaped member was demonstrated in this embodiment, this invention is not limited to this example. That is, as long as the ruler 1 can be supported and the member that supports the ruler 1 can be fixed to a pillar or a wall, the support may have other shapes and other materials may be used. For example, the support may have a frame structure in which rod-like members are combined.

As shown in FIG. 7, the length in the depth direction of the plate part 6a of the support part 6, that is, the distance between the fixed part 5 and the plate part 6b of the support part 6, which are parallel to each other, is the thickness of the main body part 2 of the ruler 1. almost equal to. Thereby, the ruler 1 is sandwiched between the plate portion 6b and the pillar or wall, and the ruler 1 is securely fixed without loosening.

A through hole for a screw 13 that fixes the fixing part 5 is formed in the center of the support 3 in the width direction. As shown in FIGS. 7 to 9, the support 3 is rotatable around the axis of a screw 13 inserted into the through hole. Thereby, the installation direction of the support part 6 can be changed to the lower side or the upper side with respect to the fixing part 5. When the installation direction of the support 3 is adjusted and the support part 6 is on the lower side with respect to the fixed part 5 as shown in FIGS. 5(A), 7(A), and 8, the support 3 is , supports the upper end of the ruler 1 installed on the floor. Further, as shown in FIG. 5(B), FIG. 7(B), and FIG. The lower end of the ruler 1 is supported.

As shown in FIG. 6, when the notch 4 is formed at the lower end of the main body 2 of the ruler 1, as shown in FIGS. 5(A), 7(A), and 8, The support 3 is provided on a pillar or wall so that the plate portion 6a of the support portion 6 located on the lower side is in contact with the upper end of the ruler 1 installed on the floor surface. In this case, by slightly loosening the fixation of the support 3 with the screws 13, the ruler 1 can be removed from or attached to the support 3 while sliding the main body 2 along the wall surface.

As shown in FIG. 5(B), FIG. 7(B), and FIG. 9, when the plate portion 6a of the support portion 6 is positioned above the fixing portion 5, the bottom surface of the cutout portion 4 is placed on the plate portion 6a. When placed, the main body 2 is cut out to form a notch 4 such that the lower end of the main body 2 is located at the reference position P1 (the upper end of the ruler 1 installed on the floor).

On the other hand, when the notch 4 is formed at the upper end of the main body 2 of the ruler 1 as shown in FIG. On the other hand, when the cutout part 4 is fixed to the plate part 6a while being positioned on the lower side, the main body part 2 is cut out so that the plate part 6a is located inside the cutout part 4, and the cutout part 4 is fixed to the plate part 6a. It is formed. As shown in FIG. 11(B), the plate part 6a of the support part 6 located above the fixed part 5 is the other longitudinal end 2b of the main body part 2 of the ruler 1 installed at the reference position P1. A support 3 is provided on a pillar or wall so as to be in contact with the pillar or wall.

A method of using the ruler set 10 according to the present embodiment described above will be explained.
First, as a first height measurement method, one lengthwise end 2a of the main body 2 is placed on the floor 20, as shown in FIG. 5(A). At this time, the main body part 2 is installed perpendicularly to the floor 20 along a pillar or wall.

As shown in FIGS. 7A and 8, the support 3 is installed on a pillar or wall so that the plate portion 6a of the support portion 6 is positioned below the fixing portion 5. As shown in FIG. 6, when the cutout part 4 is formed at the lower end of the main body part 2 of the ruler 1, the plate part 6a of the support part 6 This is the position in contact with the end 2b). On the other hand, when the notch 4 is formed at the upper end of the main body 2 of the ruler 1 as shown in FIG. located inside. Thereby, the ruler 1 installed on the floor 20 is fixed to the pillar or wall via the support 3.

Then, the height of the person is measured along the main body part 2 installed on the floor 20. At this time, the height of a person can be measured from the floor to one full length of the main body section 2.

In addition, as a second height measurement method, as shown in FIG. is set as a reference position P1, and one longitudinal end 2a of the main body portion 2 is installed at the reference position P1.

As shown in FIGS. 7(B) and 9, the support 3 is installed on a pillar or wall so that the plate portion 6a of the support portion 6 is located above the fixing portion 5. As shown in FIG. 6, when the cutout 4 is formed at the lower end of the main body 2 of the ruler 1, the bottom surface of the cutout 4 of the main body 2 is placed on the plate 6a of the support 6. On the other hand, when the notch 4 is formed at the upper end of the main body 2 of the ruler 1 as shown in FIG. The lower end (the other end 2b in the length direction) is placed. At this time, in either case, the other longitudinal end 2b of the main body 2 is located at the reference position P1 (the height of the one longitudinal end 2a of the main body 2 installed on the floor). Further, the upper end of the main body 2 installed based on the reference position P1 is fixed to a pillar or wall with another support 3 or a screw or the like, as shown in FIG. 5(B).

From the above, as shown in FIG. 5(B), FIG. 7(B), and FIG. Fixed. Thereby, the height of the person is measured along the main body section 2 installed based on the reference position P1. At this time, the height of a person whose height is equal to or more than one total length of the main body part 2 and equal to or less than two total lengths can be measured.

By using the support 3 according to this embodiment, the upper end of the main body 2 of the ruler 1 installed on the floor 20 can be supported without changing the fixed height of the support 3, and the lower end of the ruler 1 can be used as a reference. The lower end of the main body 2 of the ruler 1 located at the position P1 can be supported. Furthermore, by forming the notch 4 in the ruler 1, by simply adjusting the installation direction of the support 3, the main body 2 of the ruler 1 can be attached to the support 3 so that the lower end of the ruler 1 is at the reference position P1. Can be installed. Therefore, when installing so that the lower end of the ruler 1 is at the reference position P1 (when installing it by shifting it upward by one full length of the main body 2), it is not necessary to take the trouble of measuring the reference position P1 with a tape measure or the like to determine the position. Therefore, it is possible to save time and effort when installing the ruler 1.

As described above, according to the ruler 1 according to the first embodiment and the ruler set 10 according to the second embodiment, after the height is measured, the mark indicating the height, the name, and the date are printed on the board surface of the main body 2. By being recorded, the ruler 1 can be used as a growth record of children and families.

Since the ruler 1 according to the present embodiment is portable, it is possible to keep a growth record for many years even if a person moves or remodels, unlike the case where height is recorded on a pillar of a house.

The ruler 1 according to the present embodiment has at least two rows of numbers on the scale, and the total length of the ruler 1 is shorter than the height required for measuring the height of an adult. It can be used for any height measurement.

The numbers in the first column on the scale indicate the length from one end 2a in the length direction of the main body 2, so when the main body 2 of the ruler 1 is installed on the floor, it is especially difficult for children. The height of can be measured. In addition, the numbers in the second column on the scale indicate the total length of the main body 2 plus the length from one end 2a in the longitudinal direction of the main body 2, so A person's height can be measured by installing the main body part 2 upward by one full length. When the main body 2 is shifted upward by one full length, the lower end position of the main body 2 matches the upper end of the main body 2 when the main body 2 is installed on the floor. is easy.

Further, according to this embodiment, not only is there no need for a ruler with a total length of about 200 cm, but there is also no need for the plate material constituting the ruler to be foldable or assembleable. Therefore, the overall weight can be reduced and it is easy to carry. Furthermore, since the ruler is made up of one plate, the thickness during storage is reduced and the storage space is reduced compared to when the ruler is folded or divided. Furthermore, unlike in the case of a split/assembly type, there is no risk of each board falling apart or being lost, making it easy to store.

In addition, since the scale has a distinctive appearance with two or more rows of numbers, it is possible to create a ruler by carefully selecting the material for the main body 2 of the ruler 1, or by using a perforated board for the main body 2. 1 can also be used as part of the interior. Furthermore, when the main body part 2 is made of wood, the ruler 1 can be made of cypress wood, which has excellent antibacterial action and durability. Furthermore, by using thinned wood for the main body portion 2, it is possible to create a product that takes forest conservation and natural environment conservation into consideration.

Ruler 1 and Ruler Set 10 can be used as growth records, so they are not only suitable for children's products, baby products, baby gifts, and hobby products, but also for design proposals in the construction industry (new construction and renovation), and for DIY. It is also suitable as an interior decoration item at home centers, etc.

1 : Ruler 2 : Main body part 2a : One lengthwise end 2b : Other lengthwise end 3 : Supporter 4 : Notch part 5 : Fixing part 6 : Supporting part 6a, 6b : Plate part 7 : Through hole 8 : Screw 9 : Hole 10 : Ruler set 11 : Numerical value (first numerical value)
12: Numerical value (second numerical value)
13: Screw 20: Floor P1: Reference position

Claims (6)

comprising a plate-shaped main body having a predetermined overall length and provided with a scale having a total of two or more rows of numerical values in the same unit along the length direction on one or both sides,
One lengthwise end of the main body has an end face perpendicular to the lengthwise direction,
The scale is
a first numerical value indicating the length of the main body from the one end in the longitudinal direction;
a second numerical value indicating a value obtained by adding a length from one end in the length direction to the total length of the main body;
A ruler with a The ruler according to claim 1, wherein a plurality of holes are formed in the main body. A method of using the ruler according to claim 1 or 2, comprising:
installing the one lengthwise end of the main body on the floor;
Measuring the height of a measurement target along the main body installed on the floor;
How to use a ruler with. A method of using the ruler according to claim 1 or 2, comprising:
setting the other longitudinal end of the main body part as a reference position when the one longitudinal end of the main body part is installed on the floor, and installing the one longitudinal end of the main body part at the reference position;
measuring the height of the measurement target along the main body installed based on the reference position;
How to use a ruler with. The ruler according to claim 1 or 2,
a support that supports the longitudinal end of the main body;
A ruler set comprising:
The ruler has a notch cut out according to the shape of the support at one lengthwise end of the main body or the other lengthwise end of the main body,
The support device is
a fixing part formed on one side and fixed to a pillar or wall;
a support part capable of supporting the main body in contact with the notch, the other longitudinal end of the main body, or one longitudinal end of the main body;
A set of rulers. A method of using the ruler set according to claim 5, comprising:
When the one longitudinal end of the main body is installed on the floor, the other longitudinal end of the main body is a reference position, and the one longitudinal end of the main body is installed at the reference position. , installing the notch of the ruler or the one lengthwise end of the main body on the support;
Measuring the height of a measurement target along the main body installed on the support;
How to use a ruler set with.