JP3135560U - Sliding scale - Google Patents

Abstract

Provided is a slide scale that enables an operator to read a measurement value in an easy posture without changing the posture even if the measurement height changes. Further, the present invention provides a slide-type scale in which a scale plate (scale) can be easily put in and taken out and the burden on the operator at the time of measurement can be further reduced.
A mark 21 as a scale reading position is attached to the outer box 10 at a predetermined distance a from the closed end side. On the scale plate 60 inserted into the outer box 10, a numerical value corresponding to the length b of the outer box 10 is attached as a minimum scale 61 at a position corresponding to the scale reading position. The value gradually increases toward the side. A movable pulley member 50 that is movable and fixed along the longitudinal direction of the outer box 10 is provided, and the lower end of the scale plate 60 is connected to the movable pulley member 50 via an operating string 37, and the movable pulley member 50 is pulled down. The scale plate 60 slides upward from the outer box 10 and jumps out.
[Selection] Figure 1

Description

  The present invention relates to a slide-type scale, but is not limited thereto, and relates to a slide-type scale particularly suitable for measuring plant culm length (plant height).

  A plant growth survey (characteristic survey) is performed in a field or the like. One of the most frequent trait surveys is plant culm length (plant height), which is usually measured using a 2 m scale. There is no particular problem with crops whose length does not exceed 2m, but for long crops such as sorghum, there are those whose length exceeds 2m, making measurement difficult at a scale of 2m. . If a longer scale (3 m or 4 m) is used, stable heel length measurement is possible. However, it is not appropriate to work with such a long scale in a place such as a field for test and research where other types of plants are cultivated and equipped with a bird net.

  Therefore, conventionally, in the field for test research, the culm length is measured using a 2 m scale even for crops having a culm length of 2 m or more. In that case, an appropriate part of the crop is pressed, and it is measured twice as a mark, and the two measured values are summed up. This method requires careful work because there is a risk of damaging the plant (folding a cocoon, etc.) when pressing the plant. In addition, since the measurement is performed twice, the work efficiency is poor, and when two numbers are added and entered, work without mistakes is required.

  As a measuring instrument for measuring the length, a slide type (nested type) scale is known. For example, a unit scale of 1 m is made into three slide types (nested type), and a slide type whose maximum length is 3 m. There is a scale.

  When measuring the length of a plant using a conventionally known slide-type scale, it is not necessary to measure the length of the plant in two parts by pressing the plant even if it is a crop of more than 2 m. Inconvenience such as doing is solved. However, since the nested scale needs to be expanded and contracted according to the measured value, it cannot be said that the working efficiency is sufficient. In addition, since the position of the scale for reading the measurement value is low and a posture such as bending is required at the time of measurement, it is inevitable that the load imposed on the operator when measuring a large number of samples is increased. In general, since the scale is divided into three stages, it is necessary to change the reading position in accordance with the length, and the measurement becomes complicated.

  In addition, the nested scale for general measurement has good holdability between the scales and can be measured stably regardless of the measurement direction, but this is different in many plant heights as in the case of the growth survey in the field. When it is required to handle samples, the high holdability between the scales, which should be an advantage, becomes “stiffness” at the time of operation, which is a burden on the operator. In addition, since the scale is taken in and out by directly holding the scale, there are cases where it becomes difficult to put in and out the scale because the soil is caught during work in the field.

  The present invention has been made in view of the above-described problems. Even though the measurement height changes, it is easy to read the measurement value without changing the posture of the operator even though it is a slide-type scale. It is an object of the present invention to provide a more improved sliding scale that can be performed as it is. It is another object of the present invention to provide an improved slide scale that allows easy entry / exit of a scale plate (scale) and that can further reduce the burden on the operator during measurement.

  The sliding scale according to claim 1 for solving the above-mentioned problem is such that an outer box whose length is b with one end opened and the other end closed is protruded from the open end side into the outer box. And a scale plate that is slidably inserted into the outer box, and a mark as a scale reading position is attached to the outer box at a predetermined distance a (however, a <b) from the closed end side. The scale attached to the inserted scale plate can be read from the outside at least at the position where the mark is attached, and the lower end of the scale plate has a lower end of the outer box. A numerical value corresponding to the length b is attached as a minimum scale at a position corresponding to the scale reading position in contact with the bottom surface, and the scale is a scale in which the numerical value gradually increases toward the lower end side. It is characterized by becoming.

  To measure the cocoon length of a plant using the above slide scale, with the slide scale in a vertical position, pull the scale plate upward from the outer box, and align the upper end of the scale plate with the upper end of the object to be measured. Let the state be In this state, by reading the scale on the scale plate that appears at the mark position, which is the scale reading position attached to the outer box, the operator can know the length of the measurement object. Regardless of the height of the operator, the mark as the scale reading position attached to the outer box is set to an appropriate height position, so that the operator will be able to Measurement values can be read without changing the position.

  The sliding scale according to claim 2 is characterized in that, in the sliding scale, the predetermined distance a is a distance in a range of 150 cm to 180 cm. The distance a is a value determined on the basis of the average height of the worker, and is preferably 150 cm to 180 cm, but is not limited to this range. If the distance (the length of the outer box) b = 200 cm and the distance a is 160 cm, a scale plate having a scale of 2 m can be inserted into the outer box, and a maximum length of 3.6 m can be obtained. Measurement is possible.

  The sliding scale according to claim 3, wherein in the sliding scale, a movable pulley that is movable and fixed along a longitudinal direction of the outer box, and an operating string having one end fixed in the vicinity of a lower end of the scale plate, The operating string passes through the open end side of the outer box and the movable pulley, and then the other end side is fixed at an upper position of the outer box.

  In this sliding scale, the scale plate can be moved in the vertical direction with respect to the outer box by moving the movable pulley in the vertical direction along the outer box by a distance twice as long as the moving distance. That is, in order to slide the scale plate relative to the outer box, the operator does not need to touch the scale plate directly, and the scale plate can be easily moved.

  5. The slide scale according to claim 4, wherein in the slide scale, the outer box further includes a magnetic metal plate on a side surface on which the movable pulley is disposed, and the movable pulley is magnetically coupled with a magnetic force. It can be fixed to a metal plate. With this slide type scale, the moving pulley can be moved and fixed very easily, and the moving pulley can be reliably fixed at an arbitrary position, so that the burden on the operator at the measurement degree is further reduced.

  The sliding scale according to claim 5, wherein in the sliding scale described above, at least a side surface with the mark of the outer box is made of a transparent resin plate, and the movable pulley has a side surface with the mark. It is characterized by being arranged so as to be movable and fixed on the side surface opposite to the above. By making at least the side surface with the mark of the outer box a transparent resin plate, the scale plate can be easily read, and the scale plate can slide smoothly.

  The sliding scale according to claim 6 is characterized in that the sliding scale is a sliding scale for measuring plant culm length. The slide-type scale according to the present invention is particularly preferably used for measuring plant culm length, but is not limited thereto, and can also be used as a general device for measuring length. In such a case, in addition to the usage mode in which the sliding scale is used in the vertical posture as described above, there are naturally usage modes in which the sliding scale is used in an inclined posture or a horizontal posture. Of course, can be measured.

  Since the slide type scale according to the present invention can read the measured value without changing the posture of the operator even if the measurement height changes, the burden on the operator can be greatly reduced. In addition, since the scale plate (scale) can be easily taken in and out, the burden on the operator at the time of measurement can be reduced. The slide-type scale according to the present invention is not limited, but can be used effectively for measuring the plant length of a plant in a field for test and research.

  Hereinafter, the slide type scale according to the present invention will be described in more detail with reference to the embodiments referring to the drawings. FIG. 1 is a perspective view showing an embodiment of a slide scale according to the present invention, FIG. 2 is an exploded perspective view thereof, and FIG. 3 is a perspective view showing the slide scale as viewed from the back. FIG. 4 shows an example of the usage state.

  As shown in FIG. 1, the sliding scale A basically includes an outer box 10 and a scale plate 60. The outer box 10 has a rectangular parallelepiped shape in which the upper end side is open and the lower end side is closed, and includes a front member 20, an intermediate member 30, and a rear member 40. In the illustrated example, the vertical length b of the outer box 10 is 200 cm, the lateral width c is 5 cm, and the thickness d is 2.8 cm. However, the dimensions of the outer box 10 are not limited thereto.

  The front material 20 is made of a transparent material (for example, a transparent acrylic resin or glass material), and reads a scale at a distance a from the bottom (in this example, a = 160 cm, but not limited to this). A position mark 21 is provided. As will be described later, at least the periphery of the mark 21 only needs to be transparent, and in this case, only the portion is made of a transparent material, and the other portion is made of wood or metal. It can also be made from materials.

  The intermediate member 30 has a first notch 31 having a depth e and a lateral width f on the side facing the front member 20. The upper end of the first notch 31 is open and the lower end is closed by the bottom 32. Further, a narrow through hole 33 penetrating from the lower end to the upper end to the back surface is formed at a substantially central position in the width direction of the portion corresponding to the first notch 31. The depth e of the first notch 31 is preferably about several mm. Further, the intermediate material 30 can be made of any material such as wood, resin material, metal material, and the first notch 31 is formed by attaching angle materials and square materials on both sides of the flat plate. You can also.

  The back material 40 is provided with a second notch 41 that is substantially the same in length in the vertical direction as the through-hole 33 but has a slightly larger lateral width at a location facing the through-hole 33 formed in the intermediate material 30. Have. The upper side of the second notch 41 is opened to the upper end of the back material 40 through a narrow third notch 42, and the side of the third notch 42 is separated from the back material by a cut groove 43. 40 is open to the back side. The back material 40 can be made of an arbitrary material such as wood, a resin material, a metal material, etc., like the intermediate material 30.

  Each member as shown in FIG. 3 is attached to the back surface side of the back material 40. That is, the pulley 44 is attached in the above-described kerf 43 so as to freely rotate by an appropriate means, and a pair of guide pulleys 45 and 46 are attached to the lower position thereof. Further below that, a magnetic metal plate (for example, an iron plate) 47, preferably about 100 cm in length, is attached so as to cover a substantially lower half region of the back member 40. A pin 48 is attached in the vicinity of the pulley 44 described above. Reference numeral 50 denotes a moving pulley member. The moving pulley member 50 includes a frame 51, a moving pulley 52 rotatably supported on the frame 51, and a magnet plate 53 fixed to one surface of the frame 51. It consists of The movable pulley member 50 can be positioned and fixed at an arbitrary position of the magnet plate 53 by magnetically joining the iron plate 47 and the magnet plate 53.

  The scale plate 60 is made of a material such as a bamboo material, a resin material, or a metal material, and a scale 61 is attached to the surface. The thickness of the scale plate 60 is equal to or slightly thinner than the depth e of the first notch 31 formed in the intermediate member 30, and the lateral width is equal to or slightly smaller than the lateral width f of the first notch 31. The length is arbitrary, but in this example, it is equal to the length of the first notch 31 in the vertical direction. How to attach the scale 61 of the scale plate 60 will be described later.

  The slide type scale A composed of the above members is assembled as follows. First, the scale plate 60 is put into the first notch 31 formed in the intermediate material 30. In this state, as shown in FIG. 2, an appropriate bar 35 such as a wood screw is inserted from the back surface of the intermediate member 30 into a through-hole 33 formed therein via a washer 36 for retaining the The tip is fixed near the lower end of the scale plate 60. Further, one end of the operating string 37 is fixed to the rear end portion of the bar 35.

  Next, the front member 20 is fixed to the front surface of the intermediate member 30 by appropriate means. In this example, the front member 20 is a transparent acrylic plate as a whole, and the scale 61 of the scale plate 60 can be read through the front member 20.

  Next, the intermediate member 30 and the back member 40 are fixed together by appropriate means in a posture in which the operating string 37 is pulled upward. At that time, as shown in FIG. 3, the free end side of the working string 37 was attached to the second cutout 41, the third cutout 42, and the cut groove 43 formed in the back material 40. Pull it out through the pulley 44. Finally, the drawn operating string 37 is hung on the pair of guide pulleys 45 and 46 via the pulley 44 and is further fixed to an appropriate position on the iron plate 47. Then, the other end is fixed to the pin 48 described above. In FIG. 3, reference numeral 49 denotes a scraper for preventing the operating string 37 spanned in this way from being removed.

  In this state, when the sliding scale A is raised to a vertical posture, the scale plate 60 faces the lower end of the cavity formed by the first notch 31 between the front member 20 and the intermediate member 30. Then, the robot stops in a posture in which the lower end thereof is in contact with the bottom 32 of the first cutout 31. The posture is shown in the left diagram of FIG. As shown in the figure, the scale plate 60 is in the stopped state as described above, and the outer box 10 (sliding scale A) is placed at a position corresponding to the mark 21 for the scale reading position attached to the front member 20. A numerical value corresponding to the length b of the length b) (that is, b = 200 cm in this example) is attached as the minimum scale 61, and the scale 61 is gradually directed toward the lower end side of the scale plate 60. The scale is larger. Moreover, the length of the operating string 37 is adjusted so that the above-described movable pulley member 50 is positioned in the vicinity of the upper end of the iron plate 47 in this posture.

  In measuring the plant culm length in the field, the sliding scale A is placed in the posture shown on the left side of FIG. 4, that is, the vertical posture along the plant B to be measured. If the culm length of the plant B (that is, the length to the neck) is just 200 cm, the measured value 200 cm appears as a scale 61 of the scale plate 60 at the position of the mark 21 attached to the front material 20. Therefore, the operator can read the value in a posture in which the slide scale A is held as it is.

  In the case of a plant having a cocoon length exceeding 200 cm, the operator moves the movable pulley member 50 attached to the back face downward. The movement is transmitted to the scale plate 60 via the operating string 37, and the scale plate 60 slides upward by a distance twice as long as the moving pulley member 50 moves. When the tip of the scale plate 60 reaches the position of the head of the plant B to be measured, the operator stops the movement of the movable pulley member 50 and fixes the movable pulley member 50 to the iron plate 47. This state is shown in the diagram on the right side of FIG. In the illustrated example, the saddle length is 260 cm, and the scale plate 60 is pulled out 60 cm from the upper end of the outer box 10 by the operator moving the movable pulley member 50 downward by 30 cm. In this state, the measured value (the length value) 260 cm appears as the scale 61 of the scale plate 60 at the position of the mark 21 attached to the front member 20 in the same manner as when the length of the eyelid is 200 cm. However, the operator can read the value in a posture that holds the slide scale A as it is.

  That is, regardless of the plant length of the plant to be measured, the worker can take a stable posture, in other words, can read the measured value at the same position, so the burden on the worker is greatly reduced. Further, in the illustrated slide type scale A, although it is a two-type slide type scale having a length of 200 cm, a maximum of 360 cm (= 200 cm (length b of the slide type scale A) +160 cm (the mark 21 attached to the front material 20) Can be measured up to position a)). Further, since the scale plate 60 can be slid by moving the movable pulley member 50, the operation is extremely easy.

  In the above description, the scale plate 60 having the same length as that of the outer box 10 is used. However, a scale plate having a longer length is used, or another scale plate is joined to the scale plate 60. By adding, it is possible to measure to a higher position. In any form, since the scale reading position can be performed at the position of the mark 21, the front material 20 can be used as a sliding scale A if the vicinity of the mark 21 is transparent. It will also be understood that can be achieved. In addition, by using a lightweight and high-strength material such as an aluminum material as the material of each member, it is possible to obtain a sliding scale that is thin and lightweight and easy to handle with high rigidity. Furthermore, if the operating string 37 can be guided to the movable pulley member 50 in a stable state, the guide pulleys 45 and 46 or the squirrel 49 may be omitted. In order to prevent the leaves of the plant from becoming tangled in the pulleys 44, 45, 46, the operating string 37, etc. when the actual measurement work is performed using the slide type scale A, FIG. As indicated by the lines, it is desirable to attach the protective cover 70 in a position that does not interfere with the movement of the movable pulley member 50 so as to be detachable.

The perspective view which shows one Embodiment of the slide-type scale by this invention. The perspective view which decomposes | disassembles and shows the slide type scale shown in FIG. The perspective view which shows the slide type scale shown in FIG. 1 seeing from a back surface. The figure explaining an example of the use condition of the slide type scale shown in FIG.

Explanation of symbols

  A ... Sliding scale, B ... Plant for measuring cocoon length, 10 ... Outer box, 20 ... Front material, 21 ... Mark to be a scale reading position, 30 ... Intermediate material, 31 ... First notch, 32 ... Bottom part 33 ... through hole 35 ... bar material 36 ... washer 37 ... operating string 40 ... back material 41 ... second notch 42 ... third notch 43 ... groove 44 ... pulley , 45, 46 ... a pair of guide pulleys, 47 ... magnetic metal plate (for example, iron plate), 48 ... pin, 49 ... squirrel, 50 ... moving pulley member, 51 ... frame, 52 ... moving pulley, 53 ... magnet plate 60 ... scale plate, 61 ... scale, 70 ... protective cover

Claims (6)

A sliding scale comprising an outer box whose length is b with one end open and the other end closed, and a scale plate slidably inserted into the outer box so as to protrude from the open end side. And
The outer box is provided with a mark as a scale reading position at a predetermined distance a (where a <b) from the closed end side, and at least at the position where the mark is attached, The attached scale can be read from the outside, and the scale plate has a length b at a position corresponding to the scale reading position in a state where its lower end is in contact with the bottom surface of the outer box. The slide type scale is characterized in that a numerical value corresponding to is attached as a scale of the minimum value, and the scale is a scale in which the numerical value gradually increases toward the lower end side.   The sliding scale according to claim 1, wherein the predetermined distance a is a distance in a range of 150 cm to 180 cm.   And a movable pulley that is movable and fixed along a longitudinal direction of the outer box, and an operating string having one end fixed in the vicinity of a lower end of the scale plate, the operating string including the open end side of the outer box and the moving string. The sliding scale according to claim 1 or 2, wherein the other end side is fixed at an upper position of the outer box after passing through the pulley.   4. The outer box further includes a magnetic metal plate on a side surface on which the movable pulley is disposed, and the movable pulley can be fixed to the magnetic metal plate by a magnetic force. The sliding scale described in 1.   At least the side surface with the mark of the outer box is made of a transparent resin plate, and the movable pulley is arranged to be movable and fixed on the side surface opposite to the side surface with the mark. The sliding scale according to claim 3 or 4.   The sliding scale according to any one of claims 1 to 5, wherein the sliding scale is a sliding scale for measuring plant culm length.

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