JP2004170402A - Levelness/perpendicularity measuring instrument between two points - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a measuring instrument for basically combining a conventionally using leveling string and a level gauge for easily measuring levelness and perpendicularity between separate two points at a building site and a civil engineering work site. <P>SOLUTION: This levelness/perpendicularity measuring instrument between two points applies tension to the leveling string 3 by treating the leveling string 3 operated with one end of a measuring display line 2 arranged on a body 1 as the origin like a pulling feeling by gripping a gripping part 11 by stretching up to an optional measuring point, and is composed of the leveling string 3 operated with one end of the measuring display line 2 arranged on the body 1 as the origin and at least one bubble type level installed on the body 1 for displaying the horizontal with the leveling string 3 as an indicating string. One bubble type level 4 is arranged on a surface parallel to a surface provided with the measuring display line 2, and at least one bubble type level 5 is arranged on a surface substantially perpendicular to a surface for installing the bubble type level 4. <P>COPYRIGHT: (C)2004,JPO

Description

  The present invention relates to a measuring instrument for easily measuring horizontality and verticality between arbitrary two points.

  Usually, what is called a leveler is one in which a cylindrical glass tube having bubbles inside, called one or more bubble tubes, is attached to a rectangular parallelepiped main body. The purpose is to observe the position of the air bubble when placed on the installation surface of the structure and on the upper surface of the installed structure, and to examine the level. When trying to determine the level of horizontality between two distant points using the leveler described above, work is performed such that a horizontal level is applied to a waterline and then viewed. On the other hand, when obtaining the verticality from an arbitrary point, a work called a plumb bob, having a conical tip portion, is attached to the tip of the thread and hung.

On the other hand, Patent Literature 1 to Patent Literature 5 are cited as examples of prior art that can measure the horizontality between two distant points. First, Patent Literature 1 and Patent Literature 2 use a protractor as a display unit, and measure by moving a protractor or an index with a water thread. As an example of the prior art other than the above-mentioned 1 and 2, a technique is adopted in Patent Document 3 in which a special small level device is attached to a stretched water thread to measure the levelness. In Patent Literature 4, a reference line is provided in a measuring unit, and a horizontal line is measured by moving a water thread. In Patent Document 5, an angle including horizontality is measured using a protractor, a water thread, and a bubble level.
Japanese Utility Model Publication No. 57-13915 Japanese Utility Model Publication No. 58-13021 Japanese Utility Model Publication No. 6-53924 JP-A-2002-202131 JP 2003-28637 A

  When examining the levelness using a water thread and a level, it is necessary to apply a level on the water thread and then look at it.However, the water level sinks due to the weight of the level and incorrect measurement results are obtained. It is easy to invite, and the water thread itself may become loose while being stretched for a long time. In addition, it takes time and effort to stretch the water thread. On the other hand, even in the swinging-down operation, it takes time until the weight stops, or there is an influence of wind.

  On the other hand, in Patent Document 1 cited as a prior art, measurement cannot be performed unless the horizontality of the main body itself is determined. In Patent Document 2, it is questionable how to check the level without having a leveler. In Patent Document 3, the water thread is likely to sink slightly due to the weight of the measuring instrument, and it is likely to take time and effort to adjust the height of the water thread. In Patent Document 4, it seems to be used for a special purpose, and its versatility seems to be low. In Patent Document 5, the measurement accuracy is related to the radius dimension of the protractor.

  Considering the above, it seems that the problem of the conventional measurement method lies in the use of the water thread. In other words, the water thread originally used as the indicating thread for indicating the levelness between the measurement points is also used as the absolute reference line of the levelness between the measurement points. The thread has to play two contradictory roles, one that must move and one that must not, resulting in inaccurate, time-consuming and time-consuming measurements.

  On the other hand, in the example of the above-mentioned prior art, there is an attempt to give the water yarn a role as an indicator yarn as in Patent Document 4, but it is not considered to be so practical. However, in Patent Literature 5, the water yarn is shared as an indicator yarn. However, since the measurement display portion has only the radius of the protractor, the measurement accuracy depends on the diameter of the protractor. In other words, the larger the diameter of the protractor, the higher the measurement accuracy, but the larger the size of the measuring device itself.

  From the result of the study, the purpose of this application was to measure the horizontality and verticality between two distant points based on the basic combination of the conventionally used water thread and leveler. An object of the present invention is to provide a measuring instrument that can be easily performed.

  In order to achieve the above object, according to the first aspect of the present invention, a water thread 3 that is operated with one end of a measurement display line 2 provided on a main body 1 as a base point is stretched to an arbitrary measurement point, and a grip 11 is attached. This is a horizontal / vertical measurement device between two points which is designed to apply tension to the water thread 3 by grasping and handling it slightly, and operates with one end of a measurement display line 2 provided on the main body 1 as a base point. It is characterized by comprising a water thread 3 to be made, and at least one bubble level attached to the main body 1 to display the horizontal as the indication thread.

  As described above, this instrument stretches the water thread 3 between an arbitrary measuring point and adjusts the position of the air bubble of the bubble level so that the water thread 3 matches the measurement display line 2. When the bubble level of the bubble level is horizontal and the water line 3 matches the measurement display line 2, the water line 3 and the measurement display line 2 are in a parallel state between any measurement points. It becomes. Therefore, if the measurer confirms an arbitrary point on the stretched water thread 3, the measurement of the horizontality or the verticality is completed.

  In the level and vertical degree measuring device between two points according to claim 2, one bubble level 4 is provided on a surface parallel to the surface on which the measurement display line 2 is provided, and the bubble level 4 is provided. Is characterized in that at least one bubble level 5 is provided on a surface substantially perpendicular to the surface on which is attached. By incorporating these at least two bubble levels in the body, the bubble level 4 is used for measuring the level, the bubble level 5 is used for measuring the verticality upward, and the bubble level 6 is used for measuring the level. It can be used for measuring verticality downward.

  In the measuring device for horizontality and verticality between two points according to the third aspect, a water thread stopping device 14 is attached to the measuring section 13 of the main body 1.

  The horizontality and verticality measurement device between two points according to claim 4 is characterized in that a water thread guide 14 is provided in the measurement section 13 of the main body 1.

  The horizontal and vertical degree measuring device between two points according to claim 5 is characterized in that a reflecting mirror 16 is attached to the measuring section 13 of the main body 1.

  In the measuring device for horizontality and verticality between two points according to the sixth aspect, an attachment 17 for mounting a tripod 23 is attached to the main body 1.

  As described above, the measurement of the horizontality and the verticality between two points of the present application makes it possible to perform the measurement more easily than the conventional measurement method. Further, since it is not necessary to prepare separate measuring instruments for the measurement of the horizontality and the measurement of the verticality, the work efficiency can be greatly improved. In addition, by attaching the reflecting mirror, the burden on the measurer can be reduced and the visibility can be improved.

  The present invention provides a measuring instrument that can easily measure the horizontality and verticality between two distant points on the basis of a basic combination of a conventionally used water thread and a leveler. It is in.

  FIG. 1 is a perspective view showing an apparatus for measuring horizontality and verticality between two points according to an embodiment provided with claims 1 and 2 of the present application. The T-shaped main body 1 includes a rectangular grip 11 and a measuring section extending vertically from the grip, and a finger hole 10 is provided in the grip. Then, a measurement display line 2 which is an absolute reference line of the angle in the present instrument is drawn from the water thread passage hole 8 as a base point to the end of the measurement section at the center. A measurement auxiliary line 12 is drawn in the reverse direction with the water thread passing hole 8 as a base point.

  The bubble level 4 is provided on the upper surface orthogonal to the surface on which the measurement display line 2 is provided so as to be parallel to the surface of the measurement display line 2. The bubble level 5 and the bubble level 6 are attached to separate surfaces so as to be vertical. Then, the water thread 3 operates based on the water thread drawing hole 8 which is also one end of the measurement display line 2.

  FIG. 2 is a plan view of the main body 1 of FIG. 1 as viewed from above. The water thread 3 is taken up by a water thread take-up device 9 arranged on the back surface in FIG. 1, passes through a water thread passing hole 7, is pulled out from a water thread drawing hole 8, and is stretched to an arbitrary measurement point. To tie.

  Next, the features of the measuring instrument will be described. The instrument is provided with a bubble level 4 or a bubble level 5 or a bubble level 6 attached to the main body 1 to secure horizontality, and to measure at any measurement point. The horizontality and the verticality are measured by matching the water thread 3 as the indicating thread stretched to the measurement display line 2 which is an absolute reference line of the angle. At this time, the grip portion 11 including the finger hole 10 plays an important role. In other words, the gripper 11 is firmly grasped between five fingers and the palm of the hand, and the instrument is slightly pulled toward the measurer's hand. The operation of letting go is easy in a short time. Even when the point to be measured is in the air at a distance from the ground by applying tension to the water thread 3, the instrument can easily measure, and is not easily affected by a slight wind.

  As shown in FIG. 2 as an example of how to use the device, measurement of horizontality is shown in FIG. 2. First, the water thread 3 is pulled out of the water thread take-up device 9 through the water thread passage hole 7, and a little from the portion of the water thread draw-out hole 8. Therefore, the water thread 3 is further pulled out, and the tip of the water thread 3 is tied and fixed to an arbitrary measurement point x as shown in FIG. 3, and the water thread 3 is moved while moving the instrument to the other measurement point. I will go out in a row. When the device has been moved to the other measurement point, the water line winding device 9 is tightened, and the water line 3 is given tension by strongly gripping and pulling the grip portion 11. The horizontal level of the instrument is determined using the bubble level 4 among the three bubble levels attached to the instrument, and at the same time, the water thread 3 is matched with the measurement display line 2. When the bubble level 4 indicates horizontal and the water thread 3 matches the measurement display line 2, the measuring instrument and any measurement point are in a parallel state, so the end of the measurement auxiliary line 12 provided on the main body 1 The horizontality measurement is completed by confirming the position of y which is the portion or an arbitrary point z on the support 21 on the water thread 3.

  FIG. 4 is a diagram showing that the verticality of the wall 22 is measured in the upward direction with the measurement display line 2 in the upward direction. The horizontal level of the main body 1 is determined by the bubble level 5, and the water thread 3 is fixed to the arbitrary measurement point x and is aligned with the measurement display line 2. The measurement is completed by confirming the position of y or the middle z, which is the end of the measurement auxiliary line 12.

  FIG. 5 is a view showing that the verticality measurement is performed from the upper surface of the wall 22 to the lower direction with the measurement display line 2 in the downward direction. The horizontality of the main body 1 is determined by the bubble level 6, and the water thread 3 is tied to an arbitrary measurement point x and fixed, and is aligned with the measurement display line 2. The measurement is completed by confirming the position of y or the middle z, which is the end of the measurement auxiliary line 12.

  In the horizontality / verticality measuring device between two points of the present invention, the measurement accuracy is improved by making the length of the measurement display line as long as possible. It is also important to install the bubble level at a position where it is easy to see and to easily read the position of the water line. In addition, a design that pays attention to the setting of the grip portion for applying tension to the water thread is also necessary. In addition, by attaching the reflecting mirror, the burden on the measurer can be reduced and the visibility can be improved.

  FIG. 6 shows another embodiment, in which the T-shaped main body 1 comprises an elliptical gripper 11 and a measuring portion 13 extending vertically from the gripper, substantially similar to the first embodiment. The part 11 is provided with a finger hole 10. A measurement display line 2, which is an absolute reference line of the angle in the instrument, is drawn from the water line drawing hole 8 of the water line guide 15 to the end of the measuring section at the center. A measurement auxiliary line 12 is drawn on the grip 11 on an extension of the measurement display line 2.

  As in the first embodiment, a bubble level 4 is provided on the upper surface orthogonal to the surface on which the measurement display line 2 is provided so as to be parallel to the surface on which the measurement display line 2 is provided. An air bubble level 5 is provided in the main body 1 so as to be orthogonal. Further, on the surface on which the measurement display line 2 is drawn, a water line winding device 9, a water line stopping device 14, and a water line guide 15 are provided in this order in the drawing direction of the water line 3.

  The board of the water thread stopping device 14 provided between the water line winding device 9 and the water line guide 15 is fixed on the upper surface of the main body 1 and supports the stopping piece 14a by a hinge so as to be swingable. Then, when the knob 14b provided on the stop piece is released, the stop piece 14a comes into close contact with the surface of the measuring section 13, and the magnet arranged on the back surface of the knob 14b is attracted to the iron piece embedded in the main body to lock the water thread 3. It has become. Therefore, when the knob 14b is pulled, the water thread 3 is released. Further, the water thread guide 15 provided in the measuring section 13 in the longitudinal direction is fixed to the surface of the measuring section 13 such that the water thread passing hole 7 provided on the back thereof coincides with the measurement display line 2.

  The use of the device of the second embodiment will be described with reference to FIGS. First, after the water thread 3 has passed from the water thread take-up device 9 to the location provided with the water thread stopping device 14, the water thread 3 is slightly pulled out from the water thread draw-out hole 8 via the water thread guide 15, so that the water thread 3 7, the tip of the water thread 3 is tied and fixed at an arbitrary measurement point x as shown in FIG. 7, and the water thread 3 is continuously drawn out while moving the device to the other measurement point. Then, at the time when the instrument has been moved to the other measurement point, the water thread stopping device 14 is used to stop the water thread 3 from being further pulled out. Then, the water thread 3 is provided with tension by strongly gripping and pulling the grip portion 11. The horizontal level of the measurement display line 2 is determined using the bubble level 4 among the two bubble levels attached to the device, and at the same time, the water thread 3 is matched with the measurement display line 2. Go. Then, when the bubble level 4 indicates horizontal and the water thread 3 matches the measurement display line 2, the instrument and the measurement point on the support 21 installed at an arbitrary position are in an equilibrium state. The horizontality measurement is completed by confirming the position of y which is the terminal end of the measurement auxiliary line 12 or the position of point z on the support 21 installed in the middle on the water thread 3.

  FIG. 8 is a view showing that the verticality measurement in the upward direction of the wall 22 is performed with the measurement display line 2 in the upward direction. The horizontal level of the main body 1 is determined by the bubble level 5, and the water thread 3 is fixed to the arbitrary measurement point x and is aligned with the measurement display line 2. The measurement is completed by confirming the position of y or the middle z, which is the end of the measurement auxiliary line 12.

  FIG. 9 is a perspective view showing a state in which the reflecting mirror 16 of the third embodiment is attached to the measuring instrument of the second embodiment. The reflecting mirror 16 is attached to the lower end of the measuring section 13 of the main body 1 with an opening angle.

  FIG. 10 is a plan view of the state of FIG. In the case of the measuring device of Example 2 shown in FIG. 6, the line of sight of the measurer confirms that the water thread 3 matches the measurement display line 2 from an oblique lateral direction of the measuring unit 13, but the reflection shown in FIG. When the mirror 16 is provided, the eye of the measurer can be checked by observing the movement of the measurement display line 2 reflected on the reflecting mirror 16 and the virtual image 20 of the water thread 3 from above, so that the burden on the measurer is reduced and the measurement accuracy is reduced. improves.

  That is, the measurer can see the movement of the water thread 3 on the measurement display line 2 via the reflecting mirror 16, and the movement of the observer's line of sight can be reduced as compared with the case without the reflecting mirror 16, so that the observer can see the movement. And the measurement accuracy can be improved. Specifically, when the reflector 16 is not provided, the measurer checks the bubble position of the bubble level 4 from above, and observes the movement of the water thread 3 on the measurement display line 2 from an oblique lateral direction of the main body 1. In the case where there is a reflecting mirror 16 as compared with the case where the user sees, it becomes possible to see from the upper side as in the case of seeing the bubble type level 4 and the movement of the eye of the measurer can be reduced, so that the burden on the measurer , The visibility is improved, and the measurement accuracy is improved.

  As described above, according to this measuring instrument, the angle in the instrument is measured by the bubble level 4 attached to the main body 1 in the case of the levelness measurement, and by the bubble level 5 in the case of the verticality measurement. After securing the horizontality or verticality of the measurement display line 2, which is an absolute reference line, a water thread 3 as an indicator thread stretched from one end of the measurement display line 2 to an arbitrary measurement point is measured. , The horizontality and the verticality can be measured.

  The grip portion 11 including the finger hole 10 plays an important role in the levelness measurement. In other words, the gripping portion 11 is firmly grasped between the five fingers and the palm of the hand, and the water thread 3 is slightly pulled, so that the water thread 3 is adjusted to the measurement display line 2 while giving an appropriate tension. Easy to do in a short time. The role of the grip 11 is also important when measuring the verticality. Further, even if the point to be measured is in the air away from the ground by applying tension to the water thread 3, the instrument can easily measure, and is not easily affected by a slight wind.

  Further, as shown in FIG. 11, by attaching the attachment 17 to a commercially available tripod 23 or the like and fixing it with the tripod 23 as shown in FIG. 11, the measurement operation can be performed stably without pulling the grip portion 11.

It is a perspective view of the measuring instrument of the present invention, Example 1. FIG. 2 is a plan view of the measuring device of Example 1 as viewed from above. FIG. 4 is an explanatory diagram of horizontality measurement using the measuring device of the first embodiment. FIG. 5 is an explanatory diagram of verticality measurement in the upward direction using the measuring device of the first embodiment. FIG. 4 is an explanatory diagram of downward verticality measurement using the measuring device of the first embodiment. It is a perspective view of the measuring instrument of this invention, Example 2. FIG. 9 is an explanatory diagram of levelness measurement using the measuring device of the second embodiment. FIG. 8 is an explanatory diagram of verticality measurement in the upward direction using the measuring device of the second embodiment. It is a perspective view of the measuring device of the present invention, Example 3. FIG. 10 is a plan view of the measuring instrument of Example 3 as viewed from above. It is a perspective view of the measuring instrument of this invention, Example 4.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Main body 2 Measurement display line 3 Water line 4, 5, 6 Bubble level 7 Water line through hole 8 Water line draw-out hole 9 Water line take-up device 10 Finger through hole 11 Gripping part 12 Measurement auxiliary line 13 Measurement part 14 Water line Stop device 14a Stopping piece 14b Knob 15 Water thread guide 16 Reflector 17 Tripod attachment 20 Virtual image 21 Prop 22 Wall

Claims (6)

A water thread (3) operated from one end of the measurement display line (2) provided on the main body (1) as a base point is stretched to an arbitrary measurement point, and the gripping part (11) is gripped to handle the water. A horizontal / vertical measuring device for applying tension to the yarn (3) between two points, the water yarn (1) being operated with one end of a measurement display line (2) provided on the main body (1) as a base point. 3) and a horizontal and vertical level measuring device between two points, comprising at least one bubble level attached to the main body (1) for indicating horizontal by using the water thread (3) as an indicating thread. . One bubble level (4) is provided on a surface parallel to the surface on which the measurement display line (2) is provided, and is substantially perpendicular to the surface on which the bubble level (4) is mounted. 2. The measuring device according to claim 1, wherein at least one bubble level is provided on the surface. 3. The horizontal and vertical degree measuring device according to claim 1, wherein a water thread stopping device (7) is attached to the measuring portion (13) of the main body (1). The horizontality and verticality measuring device between two points according to claim 1 or 2, wherein a water thread guide (14) is provided in the measuring section (13) of the main body (1). 3. The measuring device according to claim 1, further comprising a reflector (16) attached to the measuring portion (13) of the main body (1). 3. The horizontal and vertical level measuring device according to claim 1, wherein an attachment (17) for attaching a tripod (23) is attached to the main body (1).

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