Measuring jig and method for measuring tilt

Abstract

The present invention provides a measuring jig and a method for measuring the tilt of an object to be measured, which can suitably measure the tilt of the object being measured. [Solution] A measuring jig 1 used for measuring the tilt of an outer wall 2 using the coordinates of a target 50, comprising: a base member 10 installed so as to abut against the front surface 2a of the outer wall 2; and a plurality of rotating members 20 provided along the longitudinal direction of the base member 10 that support the target 50 and are connected so as to be rotatable relative to the base member 10, such that the posture of the target 50 remains constant in a first posture in which the longitudinal direction of the base member 10 is oriented horizontally and in a second posture in which the longitudinal direction of the base member 10 is oriented vertically.

Description

Technical Field

[0001] The present invention relates to a measuring jig used for measuring the fall of a measurement target and a method for measuring the fall.

Background Art

[0002] Conventionally, techniques for measuring the fall (tilt) of a measurement target are known. For example, it is as described in Patent Document 1.

[0003] Patent Document 1 discloses a technique for measuring the tilt of a steel column of a building using a surveying device capable of acquiring the coordinates of a target. In the measurement using the above surveying device, the coordinates of the targets installed at two locations, the upper and lower parts of the steel column, are acquired respectively, and the tilt of the steel column is measured using the acquisition results of each coordinate.

[0004] In the invention described in Patent Document 1, measurement is performed by a surveying device with a target support for supporting the target attached to the steel column. The target support is formed in a substantially L shape and includes a magnet, and is detachably formed by magnetic force with respect to the corner (outer corner) of the steel column. By using the target support, targets can be installed at two locations, the upper and lower parts, along the corner of the steel column.

[0005] Here, depending on the type of the structure to be measured, the use of the target support attached to the corner of the measurement target as described above may not be suitable. For example, a member such as a corner cover may be arranged at the corner of the outer wall of a building. Therefore, when the outer wall is the measurement target, it is assumed that the target support is attached to the corner cover to measure the fall of the outer wall. However, in this case, it is considered that the construction error of the corner cover affects the measurement result, making it difficult to suitably measure the fall of the measurement target.

Prior Art Documents

Patent Documents

[0006] [Patent Document 1] Japanese Patent Publication No. 2023-48302 [Overview of the project] [Problems that the invention aims to solve]

[0007] This invention was made in view of the above circumstances, and the problem it aims to solve is to provide a measuring jig and a method for measuring tilt that can suitably measure the tilt of an object to be measured. [Means for solving the problem]

[0008] The problems that this invention aims to solve are as described above, and the means for solving these problems will now be explained.

[0009] That is, claim 1 provides a measuring jig used for measuring the tilt of an object to be measured using the coordinates of a target, comprising: a base member installed so as to contact the surface on which the object to be measured is to be installed; and a plurality of rotating members provided along one direction of the base member, which support the target and are connected to the base member so as to be rotatable relative to the base member such that the orientation of the target remains constant in a first orientation in which the one direction of the base member is oriented horizontally and in a second orientation in which the one direction of the base member is oriented vertically.

[0010] In claim 2, the base member is provided with a restricting portion capable of restricting the relative rotation of the rotating member in the first position and the second position.

[0011] Claim 3 provides that the rotating member comprises: a non-contact portion formed in an arc shape along the rotational direction of the rotating member so as not to contact the restricting portion; a first contact portion formed to be continuous with one side of the non-contact portion in the rotational direction and to contact the restricting portion in the first position, thereby restricting the relative rotation of the rotating member with respect to the base member; and a second contact portion formed to be continuous with the other side of the non-contact portion in the rotational direction and to contact the restricting portion in the second position, thereby restricting the relative rotation of the rotating member with respect to the base member.

[0012] Claim 4 provides a positioning member that is detachably attached to the base member and, in each of the first and second positions, contacts an orthogonal plane perpendicular to the surface on which the measurement object is to be installed.

[0013] In claim 5, the base member is formed to be expandable and contractible in the one direction.

[0014] Claim 6 provides a method for measuring tilt using a measuring jig described in any one of Claims 1 to 5, comprising: a reference axis measurement step of obtaining the coordinates of the target supported by a plurality of rotating members while the base member in the first position is in contact with the surface to be installed, and measuring the reference axis of the object to be measured based on the coordinates of the target in the first position; and a tilt measurement step of obtaining the coordinates of the target supported by a plurality of rotating members while the base member in the second position is in contact with the surface to be installed, and measuring the tilt of the object to be measured based on the measurement result of the reference axis and the coordinates of the target in the second position. [Effects of the Invention]

[0015] The present invention provides the following effects:

[0016] In this invention, the tilt of the object being measured can be suitably measured.

Brief Description of the Drawings

[0017] [Figure 1] Perspective view showing a measuring jig according to an embodiment of the present invention. [Figure 2] (a) Enlarged front view showing the measuring jig in the first posture. (b) Side view showing the measuring jig. [Figure 3] Perspective view showing the state of the reference axis measurement process. [Figure 4] Side cross-sectional view showing the state where the measuring jig in the first posture is installed with respect to the outer wall. [Figure 5] Perspective view showing the measuring jig in the second posture. [Figure 6] Enlarged front view showing the measuring jig in the second posture. [Figure 7] Perspective view showing the state of the tilt measurement process. <​​​​​​​​​​​​​​​​The following will first describe the building's exterior wall 2 and foundation 3 using Figures 3 and 4. The exterior wall 2 is positioned with its out-of-plane direction (thickness direction) facing the front-to-back direction. The front surface 2a of the exterior wall 2 faces outwards from the building. The exterior wall 2 is provided on top of the building's foundation 3. The foundation 3 is formed to extend in the left-to-right direction. The front surface 2a of the exterior wall 2 is located in front of the front surface 3a of the foundation 3. As a result, a step is formed between the front surface 2a of the exterior wall 2 and the front surface 3a of the foundation 3. In the following, as shown in Figure 4, the downward-facing surface of the part where the above step is formed (the lower end of the exterior wall 2) will be referred to as the "step surface 4".

[0021] Next, an outline of the method for measuring the tilt of the exterior wall 2 will be described. In this embodiment, the tilt of the exterior wall 2 is measured using a surveying device 60 capable of acquiring the coordinates of a target 50. The surveying device 60 can acquire the three-dimensional coordinates of the object to be measured by irradiating it with laser light and detecting the reflected laser light. The surveying device 60 is set up roughly horizontally using a tripod or the like. The target 50 is equipped with a prism capable of reflecting the laser light from the surveying device 60. Figures 1, 3, 5, and 7 schematically show the target 50. The surveying device 60 can be remotely operated using a terminal such as a smartphone or a remote control.

[0022] In this embodiment, the tilt of the outer wall 2 is measured by obtaining the coordinates of the target 50 using the surveying device 60 while the target 50 is installed on the outer wall 2 using the measuring jig 1. A detailed explanation of the measurement method using the measuring jig 1 will be given later.

[0023] Next, the configuration of the measuring jig 1 will be described. The measuring jig 1 shown in Figures 1 to 4 is used to measure the tilt of the outer wall 2 in the out-of-plane direction (front-to-back direction). The measuring jig 1 is formed in a long shape. The measuring jig 1 is used by changing its orientation between a "first orientation" with its longitudinal direction facing left and right, as shown in Figures 1 and 3, and a "second orientation" with its longitudinal direction facing up and down, as shown in Figures 5 and 7. In the following description, the configuration of the measuring jig 1 will be explained with reference to the measuring jig 1 in the first orientation. The measuring jig 1 comprises a base member 10, a rotating member 20, a rotating mechanism 30, and an alignment member 40.

[0024] The base member 10 shown in Figures 1 to 3 is a member that is elongated in the left-right direction. The base member 10 is formed in a roughly L-shape when viewed from the side. The left-right dimensions of the base member 10 can be set to values ​​of, for example, about 3m. However, the left-right dimensions of the base member 10 are not limited to the example described above and can be set as appropriate according to the vertical dimensions of the outer wall 2, etc. The base member 10 comprises a main body portion 11 and a restricting portion 12.

[0025] The main body portion 11 is the primary structure of the base member 10. The main body portion 11 is elongated in the left-right direction and is formed in a substantially plate shape with the plate surface direction oriented in the front-rear direction. The main body portion 11 has a front surface 11a and a rear surface 11b. A rotating member 20, which will be described later, is rotatably connected to the front surface 11a side of the main body portion 11.

[0026] The restricting portion 12 is a part that can restrict the rotation of the rotating member 20 by contacting the rotating member 20, which will be described later. The manner in which the rotation of the rotating member 20 is restricted by the restricting portion 12 will be described later. The restricting portion 12 is formed to extend forward from the upper end of the main body portion 11. The restricting portion 12 is formed over the entire longitudinal direction of the main body portion 11. As described above, by forming the restricting portion 12 over the entire longitudinal direction of the main body portion 11, the restricting portion 12 can function as a rib, thereby increasing the rigidity of the base member 10.

[0027] The rotating member 20 supports the target 50 and is rotatably connected to the base member 10. More specifically, the rotating member 20 is rotatably connected to the base member 10 via a rotating mechanism 30, which will be described later, around a rotation axis (shaft portion 31, which will be described later) that faces in the front-rear direction. The manner in which the rotating member 20 is connected to the base member 10 will be described later. The rotating member 20 is formed in a substantially L-shape when viewed from the side. As shown in Figure 1, two rotating members 20 are provided so as to be located on both the left and right ends of the base member 10. The rotating member 20 comprises a connecting portion 21 and a support portion 22.

[0028] The connecting portion 21 shown in Figures 1 and 2 is a part that is rotatably connected to the base member 10. The connecting portion 21 is formed in a substantially plate shape with the plate surface direction facing the front-to-back direction. As shown in Figure 2(a), the connecting portion 21 is formed in a substantially quarter-circular shape when viewed from the front. The connecting portion 21 is positioned so that the arc is located on the upper right side when viewed from the front.

[0029] Hereinafter, the portion of the connecting portion 21 that forms an arc will be referred to as the curved surface portion 21a. On one side of the connecting portion 21 in the circumferential direction of the curved surface portion 21a (counterclockwise side in a front view), a first planar portion 21b is formed, which is continuous with the curved surface portion 21a and forms an upward-facing plane. On the other side of the connecting portion 21 in the circumferential direction of the curved surface portion 21a (clockwise side in a front view), a second planar portion 21c is formed, which is continuous with the curved surface portion 21a and forms a rightward-facing plane. As will be described later, the first planar portion 21b and the second planar portion 21c are formed so as to be able to abut against the restricting portion 12 of the base member 10. The curved surface portion 21a is formed so as not to abut against the restricting portion 12.

[0030] The connecting portion 21 is rotatably connected to the base member 10 via the shaft portion 31 of the rotating mechanism 30, which will be described later. The connecting portion 21 has a hole that penetrates in the front-rear direction and through which the shaft portion 31 is inserted. The hole is formed approximately in the center of the connecting portion 21 in the vertical and horizontal directions. In this embodiment, by forming a curved portion 21a between the first flat portion 21b and the second flat portion 21c of the connecting portion 21, the area of ​​the connecting portion 21 can be secured and the strength of the portion in which the hole is formed can be secured. Note that the shape of the portion between the first flat portion 21b and the second flat portion 21c is not limited to the example described above, and various shapes that cannot come into contact with the restricting portion 12 can be adopted.

[0031] The support portion 22 is the part that supports the target 50. The support portion 22 is formed to extend forward from the lower end of the connecting portion 21. The support portion 22 is formed in a substantially plate shape with its plate surface oriented vertically. The target 50 is attached to the upper surface of the support portion 22.

[0032] The rotating mechanism 30 shown in Figure 2 connects the rotating member 20 to the base member 10 so that it can rotate relative to it. The rotating mechanism 30 comprises a shaft portion 31 and a bearing 32.

[0033] The shaft portion 31 is the part that constitutes the axis of rotation of the rotating member 20 relative to the base member 10. The shaft portion 31 is positioned with its axial direction facing the front-rear direction. The shaft portion 31 is fixed to the main body portion 11 of the base member 10. For example, a bolt can be used as the shaft portion 31. The shaft portion 31 is inserted into a hole formed in the connection portion 21 of the rotating member 20 (see Figure 2(b)). A nut is provided at the tip of the shaft portion 31 to prevent the connection portion 21 from coming loose.

[0034] The bearing 32 shown in Figure 2(b) is the part that connects the connection portion 21 and the shaft portion 31. In this embodiment, a ball bearing is used as the bearing 32, in which balls are provided between the inner ring and the outer ring. Note that the individual parts constituting the bearing 32 (inner ring, outer ring, and balls) are not shown. The shaft portion 31 is inserted through the inner ring of the bearing 32, and the inner ring is fixed to the shaft portion 31 and the main body portion 11. The outer ring of the bearing 32 is fixed to the rear surface of the connection portion 21. By providing the bearing 32, the base member 10 and the rotating member 20 can be connected so that they can rotate smoothly. It is also possible to install the bearing 32 so as to be embedded in the connection portion 21 of the rotating member 20.

[0035] As described above, the rotating member 20 is connected to the base member 10 so as to be rotatable relative to it via the shaft portion 31 of the rotating mechanism 30. In the first position shown in Figure 2(a), the rotating member 20 is positioned so that the upper surface of the support portion 22 is approximately horizontal. This allows the target 50 to be supported on an approximately horizontal surface. In the first position, the first planar portion 21b of the rotating member 20 abuts against the restricting portion 12, thereby restricting the rotation of the rotating member 20 relative to the base member 10 in a clockwise direction when viewed from the front.

[0036] Furthermore, in this embodiment, the rotating member 20 is formed such that, with the target 50 supported by the rotating member 20, the center of gravity of the rotating member 20 and the target 50 is located below the center of rotation of the shaft portion 31. Also, the left-right positions of the center of gravity of the rotating member 20 and the target 50 and the axis of rotation of the shaft portion 31 are approximately the same.

[0037] As described above, when the rotating member 20 (first planar portion 21b or second planar portion 21c) is not in contact with the restricting portion 12, it rotates relative to the base member 10 due to gravity, so that its horizontal orientation remains approximately constant. In this embodiment, when the rotating member 20 is not in contact with the restricting portion 12, the rotating member 20 is formed such that the upper surface of the support portion 22 is approximately horizontal, similar to the first posture described above.

[0038] The alignment members 40 shown in Figures 1 and 4 are for aligning the base member 10 with respect to the outer wall 2. The alignment members 40 are formed in a substantially L-shape when viewed from the side. The alignment members 40 are detachably attached to the base member 10. As shown in Figure 3, multiple alignment members 40 (two in the illustrated example) are provided at intervals in the left-right direction at the middle of the longitudinal direction (left-right direction) of the base member 10. The alignment members 40 comprise a first piece 41 and a second piece 42.

[0039] The first piece 41 is a portion that extends in the vertical direction. The first piece 41 is formed in a substantially plate shape with the plate surface direction oriented in the front-to-back direction.

[0040] The second piece 42 is a portion that extends rearward from the lower end of the first piece 41. The second piece 42 is formed in a substantially plate shape with its plate surface direction oriented vertically.

[0041] In this embodiment, a configuration is adopted in which the alignment member 40 is attached to the base member 10 using magnetic force. In this embodiment, a magnet is provided on one of the base member 10 and the alignment member 40, and the other is made of a material that reacts to magnets (for example, iron).

[0042] As shown in Figure 4, when the alignment member 40 is attached to the base member 10, the rear surface of the first piece 41 of the alignment member 40 is in contact with the front surface 11a of the main body 11 of the base member 10. Also, the upper surface of the second piece 42 is in contact with the lower end of the main body 11. In the illustrated example, the upper end of the first piece 41 is shown in contact with the lower surface of the restricting portion 12 of the base member 10.

[0043] The configuration of the measuring jig 1 has been described above. Below, we will describe how to use the measuring jig 1 in the first and second positions.

[0044] First, the usage of the measuring jig 1 in the first position will be described. Figures 3 and 4 show the measuring jig 1 in the first position installed against the outer wall 2. In this embodiment, the measuring jig 1 is installed against the outer wall 2 by bringing the base member 10 (rear surface 11b of the main body 11), which is supported by the worker's hand, into contact with the front surface 2a of the outer wall 2, and bringing the second piece 42 of the alignment member 40 into contact with the stepped surface 4. In this state, the measuring jig 1 is positioned along the left-right direction of the outer wall 2. In this embodiment, the positioning member 40 is used to align the measuring jig 1 with respect to the outer wall 2.

[0045] As shown in Figure 2(a), in the first position of the measuring jig 1, the support portion 22 can support the target 50 in a generally horizontal position (on a generally horizontal plane). In addition, in the first position of the measuring jig 1, the first planar portion 21b of the rotating member 20 is in contact with the restricting portion 12 of the base member 10. In this state, the rotation of the rotating member 20 relative to the base member 10 (clockwise rotation when viewed from the front) is restricted, so that the target 50 can be supported stably.

[0046] Next, the usage of the measuring jig 1 in the second position will be explained using Figures 5 to 7. The operator can change the position of the measuring jig 1 in the second position by rotating the measuring jig 1 in the first position 90° clockwise when viewed from the front (see Figure 6).

[0047] As shown in Figure 5, the measuring jig 1 for the second position is positioned so that the longitudinal direction of the base member 10 is aligned with the vertical direction. In the second position, the rotating members 20 and the target 50 located at both ends of the base member 10 in the longitudinal direction are positioned with a gap between them in the vertical direction.

[0048] In the measuring jig 1 according to this embodiment, the position of the alignment member 40 is changed between the first and second positions. Specifically, when changing from the first position to the second position, the alignment member 40, which was located in the middle of the longitudinal direction of the base member 10, is removed and attached to the lower end (longitudinal end) of the base member 10.

[0049] As shown in Figure 6, when the alignment member 40 is attached to the lower end of the base member 10, the rear surface of the first piece 41 of the alignment member 40 is in contact with the front surface 11a of the main body 11 of the base member 10. Also, the upper surface of the second piece 42 is in contact with the lower end (longitudinal end) of the main body 11.

[0050] Figure 7 shows the measurement jig 1 in the second position, installed against the outer wall 2. In the second position as well, the measurement jig 1 is installed against the outer wall 2 by bringing the base member 10 (rear surface 11b of the main body 11), which is supported by the worker's hand, into contact with the front surface 2a of the outer wall 2, and bringing the second piece 42 of the alignment member 40 into contact with the stepped surface 4. In this state, the measurement jig 1 is positioned along the vertical direction of the outer wall 2. Thus, in this embodiment, a common alignment member 40 is used to align the measurement jig 1 with the outer wall 2 in the first and second positions.

[0051] As shown in Figure 6, in the second position, the rotating member 20 is positioned in much the same way as in the first position, such that the upper surface of the support portion 22 is generally horizontal. This allows the target 50 to be supported in a generally horizontal position. In the second position, the second planar portion 21c of the rotating member 20 is in contact with the restricting portion 12 of the base member 10. In this state, the rotation of the rotating member 20 relative to the base member 10 in a clockwise direction when viewed from the front is restricted, so that the target 50 can be supported stably.

[0052] Furthermore, as described above, in the measurement jig 1 according to this embodiment, the upper surface of the support portion 22 is generally horizontal even when the rotating member 20 (first flat portion 21b or second flat portion 21c) is not in contact with the restricting portion 12. Therefore, in the measurement jig 1 according to this embodiment, the state in which the target 50 is supported in a generally horizontal position is maintained even in a position intermediate between the first and second positions.

[0053] The usage of the measuring jig 1 has been described above. Next, the details of the method for measuring the tilt of the outer wall 2 using the measuring jig 1 will be described. As shown in Figure 8, the method for measuring the tilt of the outer wall 2 according to this embodiment includes a reference axis measurement step S10 and a tilt measurement step S20.

[0054] The reference axis measurement process S10 is a process of determining the reference axis (reference axis) that will serve as the reference for the coordinate system used to measure the tilt of the outer wall 2 using the surveying device 60. The reference axis includes the X-direction (left-right direction) axis and the Y-direction (front-back direction) axis.

[0055] In the reference axis measurement process S10, the worker installs the first posture measuring jig 1 on the outer wall 2, as shown in Figure 4. Next, the worker operates the surveying device 60 to acquire (measure) the coordinates of the targets 50 at both ends of the base member 10 in the longitudinal direction (left and right direction).

[0056] The surveying device 60 can determine the X-axis (left-right direction) based on the acquisition results of each of the above coordinates. That is, the surveying device 60 determines the axis passing through the coordinates of two points spaced apart in the left-right direction along the front surface 2a of the outer wall 2 as the X-axis. The surveying device 60 can also determine the Y-axis (front-back direction) as the horizontal axis perpendicular to the X-axis (left-right direction). Furthermore, the surveying device 60 can determine the Z-axis (up-down direction) as the axis perpendicular to both the X and Y directions. With the above, the determination of the reference axis using the surveying device 60 is completed.

[0057] The tilt measurement process S20 is a process in which the tilt of the outer wall 2 is measured using the surveying device 60. In the tilt measurement process S20, the worker sets the second posture measuring jig 1 on the outer wall 2, as shown in Figure 7. Next, the worker operates the surveying device 60 to obtain the coordinates of the targets 50 at both ends of the base member 10 in the longitudinal direction (up and down direction).

[0058] The surveying device 60 can measure the out-of-plane tilt (front-to-back direction) of the outer wall 2 by comparing the acquired coordinate results of the upper and lower targets 50 using the coordinate system (axis in each direction) of the reference axis determined in the reference axis measurement process S10. More specifically, if the values ​​along the Y-axis of the upper and lower targets 50 are different from each other, there is a possibility that the outer wall 2 is tilting out of plane (front-to-back direction). The surveying device 60 can measure the out-of-plane tilt of the outer wall 2 based on the difference in the Y-axis coordinates of the upper and lower targets 50. With this, the measurement of the tilt of the outer wall 2 using the surveying device 60 is completed.

[0059] In the example described above, the measurement of the tilt was performed using the surveying device 60. However, instead of the above configuration, it is also possible to measure the tilt using other equipment such as a personal computer, based on the coordinates acquired by the surveying device 60.

[0060] The above describes a method for measuring the tilt of an exterior wall 2 using a measuring jig 1. With the above configuration, the tilt of the building's exterior wall 2 can be suitably measured. Specifically, by changing one measuring jig 1 between a first and second position, the coordinates of two points on the left and right, and two points on the top and bottom of the front surface 2a of the exterior wall 2 can be easily obtained, and the tilt of the exterior wall 2 can be measured based on these coordinates. Furthermore, with the above configuration, since the measuring jig 1 is installed on the front surface 2a of the exterior wall 2, even when it is difficult to install the target 50 at the corner of the exterior wall 2, the coordinates of two points along the longitudinal direction of the measuring jig 1 can be obtained, and the tilt of the exterior wall 2 can be suitably measured.

[0061] Furthermore, in this embodiment, the rotating member 20 allows the target 50 to be supported on a generally horizontal plane in both the first and second positions. This makes it possible to acquire the coordinates of each target 50 under generally similar conditions, thereby improving the accuracy of measurements using the surveying device 60.

[0062] Furthermore, when acquiring the above coordinates, the worker can bring the measuring jig 1, which is supported by their own hand, into contact with the outer wall 2, and operate the surveying device 60 remotely. In this embodiment, one worker can perform each step of the process. In addition, by using the measuring jig 1 in the second position, the target 50 can be placed on the upper part of the outer wall 2 without the worker having to move to a high place using a stepladder or the like.

[0063] It should be noted that the method for measuring the tilt of the outer wall 2 is not limited to the above-described configuration, and the content of each step can be modified as appropriate. Specifically, in the above-described example, in the tilt measurement step S20, an example was shown in which the coordinates of each target 50 were obtained in a second posture in which the longitudinal direction of the measuring jig 1 was oriented in the vertical direction (generally vertical direction), but it is not limited to the above configuration. For example, in the tilt measurement step S20, it is also possible to position the measuring jig 1 so that its longitudinal direction is oriented diagonally without restricting the rotation of the rotating member 20 with the restricting part 12. Even in this case, the upper and lower rotating members 20 can support each target 50 in a generally horizontal position due to gravity. In this case, the measuring jig 1 is installed on the outer wall 2 without providing the alignment member 40.

[0064] Furthermore, the configuration of the measuring jig 1 is not limited to the above-described embodiment and can be modified as appropriate. For example, the base member 10 of the measuring jig 1 may be formed to be expandable and contractible in the longitudinal direction. Specifically, the base member 10 may be formed from multiple elongated members, and the relative position of each member in the longitudinal direction may be changed to create an expandable and contractible configuration. This allows the distance between the targets 50 to be changed to accommodate measuring objects of various sizes.

[0065] Furthermore, it is also possible to form the rotating member 20 so as to be slidable along the longitudinal direction of the base member 10. In this case, instead of providing a rail along the longitudinal direction of the base member 10 and directly providing the rotating mechanism 30 to the base member 10, it is possible to adopt a configuration in which the rotating mechanism 30 is provided via the rail and the rotating member 20 is connected via the rotating mechanism 30 which is provided so as to be movable on the rail.

[0066] As described above, the measuring jig 1 according to one embodiment of the present invention is A measuring jig 1 used for measuring the tilt of the outer wall 2 (measurement target) using the coordinates of the target 50, A base member 10 is installed so as to abut against the front surface 2a (the surface to be installed) of the outer wall 2, A plurality of rotating members 20 are provided along the longitudinal direction (one direction) of the base member 10 to support the target 50, and are connected to the base member 10 so as to be rotatable relative to the base member 10, such that the posture of the target 50 remains constant in a first posture in which the longitudinal direction of the base member 10 is oriented horizontally and in a second posture in which the longitudinal direction of the base member 10 is oriented vertically. It is equipped with the following features.

[0067] This configuration allows for the precise measurement of the tilt of the outer wall 2. Specifically, by using the measuring jig 1, multiple targets 50 can be supported on the front surface 2a of the outer wall 2, spaced apart in one direction (the longitudinal direction of the measuring jig 1). This allows for the precise measurement of the tilt of the outer wall 2 even when it is difficult to place the targets 50 at the corners of the outer wall 2. Furthermore, by changing one measuring jig 1 between a first and second position, the coordinates of two points on the left and right, and two points on the top and bottom of the front surface 2a of the outer wall 2 can be easily obtained, and the tilt of the outer wall 2 can be measured based on these coordinates.

[0068] Furthermore, the base member 10 is In the first and second positions, the device is equipped with a restricting unit 12 capable of restricting the relative rotation of the rotating member 20.

[0069] This configuration improves the accuracy of measurements. Specifically, by using the regulating unit 12, each target 50 can be stably supported in both the first and second positions, thereby improving the accuracy of measurements.

[0070] Furthermore, the rotating member 20 is A curved surface portion 21a (non-contact portion) is formed in an arc shape along the rotational direction of the rotating member 20 so as not to come into contact with the regulating portion 12, A first flat portion 21b (first contact portion) is formed to be continuous with one side of the curved portion 21a in the direction of rotation, and in the first position, it contacts the restricting portion 12 to restrict the relative rotation of the rotating member 20 with respect to the base member 10, A second flat portion 21c (second contact portion) is formed to be continuous with the curved portion 21a on the other side in the rotational direction, and in the second position, it contacts the restricting portion 12 to restrict the relative rotation of the rotating member 20 with respect to the base member 10, It is equipped with the following features.

[0071] This configuration allows for improved measurement accuracy while ensuring sufficient area (area in a front view) of the portion of the rotating member 20 where the rotation axis is provided (connection portion 21), thereby ensuring the strength of that portion.

[0072] Furthermore, the measuring jig 1 is The base member 10 is detachably provided with an alignment member 40 that, in both the first and second positions, contacts a stepped surface 4 (orthogonal surface) perpendicular to the front surface 2a of the outer wall 2.

[0073] This configuration allows for optimal alignment of the measuring jig 1 with respect to the outer wall 2.

[0074] Furthermore, the base member 10 is It is formed to be expandable and contractible in the longitudinal direction.

[0075] This configuration allows the distance between the targets 50 to be changed to accommodate exterior walls 2 of various sizes.

[0076] Furthermore, the method for measuring tilt according to one embodiment of the present invention is: A method for measuring tilt using a measuring jig 1, With the base member 10 in the first position in contact with the front surface 2a, the coordinates of the target 50 supported by the plurality of rotating members 20 are obtained, and the reference axis of the outer wall 2 is measured based on the coordinates of the target 50 in the first position (S10), With the base member 10 in the second position in contact with the front surface 2a, the coordinates of the target 50 supported by the plurality of rotating members 20 are obtained, and the tilt of the outer wall 2 is measured based on the measurement result of the reference axis and the coordinates of the target 50 in the second position, in a tilt measurement step (S20). It is equipped with the following features.

[0077] This configuration allows for efficient measurement of the tilt of the outer wall 2.

[0078] Furthermore, the exterior wall 2 according to this embodiment is one form of the object to be measured according to the present invention. Furthermore, the front surface 2a according to this embodiment is one form of the installation target surface according to the present invention. Furthermore, the stepped surface 4 according to this embodiment is one form of the orthogonal surface according to the present invention. Furthermore, the curved portion 21a according to this embodiment is one form of the non-contact portion according to the present invention. Furthermore, the first planar portion 21b according to this embodiment is one form of the first contact portion according to the present invention. Furthermore, the second planar portion 21c according to this embodiment is one form of the second contact portion according to the present invention.

[0079] Although embodiments of the present invention have been described above, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention as described in the claims.

[0080] For example, in this embodiment, the restricting portion 12 of the base member 10 is shown to be formed over the entire longitudinal direction of the main body portion 11, but the embodiment is not limited to this. For example, the restricting portion 12 can be provided only on the portion that contacts the rotating member 20.

[0081] Furthermore, the restricting portion 12 may be omitted from the base member 10. In this case, the rotation of the rotating member 20 is not restricted, but the rotating member 20 according to this embodiment rotates relative to the base member 10 due to gravity, so that its horizontal orientation remains generally constant regardless of the orientation of the base member 10. For this reason, even if the restricting portion 12 is not provided on the base member 10, the tilt of the outer wall 2 can be measured using the measuring jig 1 in a process that is generally similar to the measurement method described above.

[0082] Furthermore, although the outer wall 2 was used as the object of measurement for tilt in this embodiment, the configuration is not limited to this, and various structures can be used as the object of measurement. [Explanation of Symbols]

[0083] 1. Measuring jig 10 Base member 20 Rotating Member 30 Rotation mechanism 40 Alignment member

Claims

1. A measuring jig used for measuring the tilt of an object using the coordinates of the target, A base member is installed so as to contact the surface to be measured, Supporting the target, a plurality of rotating members are provided along one direction of the base member, and are connected to the base member so as to be rotatable relative to the base member such that the orientation of the target remains constant in a first orientation in which the one direction of the base member is oriented horizontally, and in a second orientation in which the one direction of the base member is oriented vertically. Equipped with, Measuring jig.

2. The base member is In the first and second positions, the system is equipped with a restricting part capable of restricting the relative rotation of the rotating member. The measuring jig according to claim 1.

3. The aforementioned rotating member is A non-contact portion is formed in an arc shape along the rotational direction of the rotating member so as not to come into contact with the regulating portion, A first contact portion is formed to be continuous with the non-contact portion on one side in the rotational direction, and in the first position, it contacts the restricting portion to restrict the relative rotation of the rotating member with respect to the base member, A second contact portion is formed to be continuous with the non-contact portion on the other side in the rotational direction, and in the second position, it contacts the restricting portion to restrict the relative rotation of the rotating member with respect to the base member, Equipped with, The measuring jig according to claim 2.

4. The base member is detachably provided with an alignment member that, in each of the first and second positions, contacts a perpendicular plane perpendicular to the surface on which the measurement object is to be installed. The measuring jig according to claim 1.

5. The base member is The above-mentioned, which is formed to be expandable and contractible in one direction, The measuring jig according to claim 1.

6. A method for measuring tilt using a measuring jig according to any one of claims 1 to 5, A reference axis measurement step in which, with the base member in the first position in contact with the surface to be installed, the coordinates of the target supported by the plurality of rotating members are obtained, and the reference axis of the object to be measured is measured based on the coordinates of the target in the first position, A tilt measurement step in which, with the base member in the second position in contact with the surface to be installed, the coordinates of the target supported by the plurality of rotating members are obtained, and the tilt of the object to be measured is measured based on the measurement result of the reference axis and the coordinates of the target in the second position, A method for measuring the degree of collapse, comprising the following:

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