Warpage measuring apparatus

Abstract

To improve workability for measuring warpage of a measuring surface.SOLUTION: A warpage measuring apparatus 1 comprises: a horizontal direction warpage measurement unit 2 including joint support pins 22, 23 with prescribed projection dimension near both ends of a horizontal long-sized material 21 in a longer direction and a first laser displacement meter 24 on an intermediate part in the longer direction; and a vertical direction warpage measurement unit 3 including laser displacement meters 32, 33 near both ends of a vertical long-sized material 31 in a longer direction. Distance to a joint bottom is measured by the laser displacement meters 24, 32, 33 while joint support pins 22, 23 are brought into contact with a joint bottom of an outer wall as reference joint. Warpage of the outer wall in a horizontal direction is measured by projection dimension of the joint support pins 22, 23 and measurement result of the first laser displacement meter 24, and warpage of the outer wall in a vertical direction is measured by an average value of distances to the outer wall respectively measured by the laser displacement meters 32, 33 and distance to the outer wall measured by the first laser displacement meter 24.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a warp measurement device for measuring the warp of a measurement surface. In particular, the present invention relates to measures for improving workability in measuring the warp of a measurement surface.

Background Art

[0002] For example, as disclosed in Patent Document 1, the outer wall of a house may warp due to aging deterioration. The degree of progress of the warp of this outer wall depends greatly on the material of the outer wall panel constituting the outer wall and the support structure of the outer wall panel. Therefore, since it is difficult to uniformly estimate the warp of the outer wall (outer wall panel), warp measurement using a warp measurement jig has been performed until now.

[0003] FIG. 7 is a diagram for explaining the warp measurement of the outer wall OW using a conventional warp measurement jig a. FIG. 7(a) shows a part (outer wall panel) of the outer wall OW of a house that is the object of warp measurement, and FIG. 7(b) is a schematic diagram showing the state of implementation of the warp measurement of the outer wall OW using the warp measurement jig a (a schematic diagram of the state of implementation of the warp measurement as seen from above).

[0004] The outer wall OW illustrated in FIG. 7(a) is composed of outer wall panels provided with a concavo-convex pattern on the surface to enhance the design. The concave portions in the concavo-convex pattern of this outer wall OW serve as joints extending in the horizontal and vertical directions, respectively, and among these joints, the joints at predetermined intervals are used as reference joints. Since this reference joint is a portion with relatively small concavo-convexities (for example, concavo-convexities within 1 mm in the thickness direction of the outer wall OW) and high flatness in both the vertical and horizontal directions, it is a portion used for the warp measurement of the outer wall OW using the warp measurement jig a.

[0005] The warpage measurement jig a is configured such that the joint support pins c1 and c2 are disposed near both ends of a long member (aluminum bar) b made of metal (for example, aluminum). Each of the joint support pins c1 and c2 projects in a horizontal direction orthogonal to the extending direction of the long member b, and the protruding dimensions from the long member b are the same as each other. Further, the interval dimension between the joint support pins c1 and c2 (the interval dimension in the direction along the longitudinal direction of the long member b) is the same as the interval dimension between a pair of reference joints in the outer wall OW (for example, a pair of reference joints located at both side portions of the outer wall panel and extending in the vertical direction).

[0006] And, as the operation for measuring the warpage of the outer wall OW in the horizontal direction using this warpage measurement jig a, as shown in Fig. 7(b), the long member b is set in a posture extending in the horizontal direction, and one operator presses one joint support pin c1 against the joint bottom of one reference joint (for example, the A position in Fig. 7(a)), and another operator presses the other joint support pin c2 against the joint bottom of the other reference joint (for example, the B position in Fig. 7(a)). Then, another operator uses a measuring tape d to measure the interval between the central portion in the longitudinal direction of the long member b and the outer wall OW (the interval between the joint bottom of the reference joint facing the central portion in the longitudinal direction of the long member b (for example, the C position in Fig. 7(a))). In this case, when there is no warpage in the outer wall OW, the interval between the long member b measured by the measuring tape d and the joint bottom C of the reference joint will be the same as the protruding dimensions of the joint support pins c1 and c2. Further, as shown in Fig. 7(b), when the outer wall OW is warped outward (outdoor side), the interval between the long member b measured by the measuring tape d and the joint bottom C of the reference joint will be shorter than the protruding dimensions of the joint support pins c1 and c2. Conversely, when the outer wall OW is warped inward (indoor side), the interval between the long member b measured by the measuring tape d and the joint bottom of the reference joint will be longer than the protruding dimensions of the joint support pins c1 and c2.

[0007] Also, when performing the warpage measurement of the outer wall OW in the vertical direction using this warpage measurement jig a, the long member b is set in a posture extending in the vertical direction, and the warpage in the vertical direction is measured by the same operation as described above.

Prior Art Documents

Patent Document

[0008]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0009] However, in the operation of measuring the warp of the outer wall OW using the conventional warp measuring jig a, the workability was poor and there was room for improvement.

[0010] In addition, such problems related to warp measurement occur not only when measuring the warp of the outer wall OW of a house as the measurement surface, but also when performing warp measurement on various measurement surfaces by the same principle as when using the above - mentioned warp measuring jig a.

[0011] The present invention has been made in view of such points, and its object is to provide a warp measurement device capable of improving the workability when measuring the warp of a measurement surface.

Means for Solving the Problems

[0012] The solution means of the present invention for achieving the above object is directed to a warp measurement device for measuring the warp of a measurement surface. And this warp measurement device includes a long member having a predetermined length, a pair of abutting means respectively disposed at predetermined intervals in the longitudinal direction of the long member and having the same protruding dimension from the long member, and being respectively abutted against a reference portion on the measurement surface when measuring the warp of the measurement surface, and at least one distance measuring means disposed between the positions where the pair of abutting means are disposed in the longitudinal direction of the long member and capable of non - contact measurement of the distance to the measurement surface.

[0013] Due to this specific matter, in the measurement operation of the warpage of the measurement surface using the warpage measurement device, each contact means disposed on the long member is brought into contact with the reference portion on the measurement surface respectively. In this state, the distance to the measurement surface is measured non - contact by the distance measurement means. Since this distance measurement means is disposed between the arrangement positions of the pair of contact means in the longitudinal direction of the long member, the distance to the measurement surface measured by the distance measurement means will change according to the magnitude of the warpage of the measurement surface. That is, when there is no warpage on the measurement surface, the distance to the measurement surface measured by the distance measurement means is a pre - defined length. On the contrary, when there is warpage on the measurement surface, the distance to the measurement surface measured by the distance measurement means does not match the defined length. That is, when the central portion of the warpage measurement range of the measurement surface warps toward the front side (the side closer to the distance measurement means), the distance to the measurement surface measured by the distance measurement means is shorter than the defined length, and this distance becomes shorter as the warpage is larger. Conversely, when the central portion of the warpage measurement range of the measurement surface warps toward the back side (the side farther from the distance measurement means), the distance to the measurement surface measured by the distance measurement means is longer than the defined length, and this distance becomes longer as the warpage is larger. Thus, the measurement operation of the warpage of the measurement surface using the warpage measurement device only requires distance measurement by the distance measurement means with each contact means in contact with the reference portion on the measurement surface respectively. Thereby, it is possible to improve the workability of warpage measurement compared to the case of using the warpage measurement jig in the prior art.

[0014] Another solution means of the present invention for achieving the above object is directed to a warpage measurement device for measuring the warpage of a measurement surface. And this warpage measurement device includes a long member having a predetermined length, a pair of reference distance measurement means respectively disposed at positions having a predetermined interval in the longitudinal direction of the long member and each capable of measuring the distance to the reference portion on the measurement surface non - contact, and at least one target position distance measurement means disposed between the arrangement positions of the pair of reference distance measurement means in the longitudinal direction of the long member and capable of measuring the distance to the measurement surface non - contact.

[0015] Due to this specific matter, in the measurement operation of the warp of the measurement surface using the warp measurement device, with each reference distance measuring means and the target position distance measuring means facing the measurement surface, the distance from each reference distance measuring means to the reference part on the measurement surface is measured non - contact, and the distance from the target position distance measuring means to the measurement surface (measurement target position on the measurement surface) is measured non - contact. Since this target position distance measuring means is arranged between the arrangement positions of the pair of reference distance measuring means in the longitudinal direction of the long member, when it is assumed that there is no warp in the measurement surface, the distance from the target position distance measuring means to the measurement surface (for example, the average value of the distance from the reference part measured by one reference distance measuring means and the distance from the reference part measured by the other reference distance measuring means: hereinafter referred to as the specified distance) will change according to the magnitude of the warp of the measurement surface. That is, when there is no warp in the measurement surface, the distance from the target position distance measuring means to the measurement surface measured by the target position distance measuring means will coincide with the specified distance. In contrast, when there is warp in the measurement surface, the distance from the target position distance measuring means to the measurement surface measured by the target position distance measuring means will not match the specified distance. That is, when the central part of the warp measurement range of the measurement surface warps toward the front side (the side approaching the target position distance measuring means), the distance from the target position distance measuring means to the measurement surface measured by the target position distance measuring means will be shorter than the specified distance, and this distance will be shorter as the warp is larger. Conversely, when the central part of the warp measurement range of the measurement surface warps toward the back side (the side moving away from the target position distance measuring means), the distance from the target position distance measuring means to the measurement surface measured by the target position distance measuring means will be longer than the specified distance, and this distance will be longer as the warp is larger. Thus, in the measurement operation of the warp of the measurement surface using the warp measurement device, it is only necessary to perform distance measurement by each distance measuring means with each distance measuring means facing the measurement surface. Thereby, it is possible to improve the workability of warp measurement compared to the case of using the warp measurement jig in the prior art.

[0016] Another solution means of the present invention for achieving the above object is directed to a warp measuring device for measuring the warp of a measurement surface. And this warp measuring device includes a first elongate member having a predetermined length, a second elongate member having a predetermined length and extending in a direction intersecting the extending direction of the first elongate member, and a pair of abutting means respectively disposed at positions having a predetermined interval in the longitudinal direction of the first elongate member and having the same protruding dimension from the first elongate member, and each being abutted against each reference portion at a position having a predetermined distance in the longitudinal direction of the first elongate member on the measurement surface when measuring the warp of the measurement surface; a pair of reference distance measuring means respectively disposed at positions having a predetermined interval in the longitudinal direction of the second elongate member and capable of non-contact measurement of the distances to each reference portion at a position having a predetermined distance in the longitudinal direction of the second elongate member on the measurement surface; and at least one target position distance measuring means disposed between the arrangement positions of the pair of abutting means in the longitudinal direction of the first elongate member and between the arrangement positions of the pair of reference distance measuring means in the longitudinal direction of the second elongate member and capable of non-contact measurement of the distance to the measurement surface.

[0017] Due to this specific matter, in the measurement operation of the warp of the measurement surface using the warp measuring device, each abutting means disposed on the first elongate member is abutted against each reference portion (each reference portion at a position having a predetermined distance in the longitudinal direction of the first elongate member) on the measurement surface. In this state, the distances to each reference portion (each reference portion at a position having a predetermined distance in the longitudinal direction of the second elongate member) on the measurement surface are measured non-contactly by each reference distance measuring means, and the distance to the measurement surface (the measurement target position on the measurement surface) is measured non-contactly by the target position distance measuring means.

[0018] In this case, when measuring the warp of the measurement surface in the direction along the longitudinal direction of the first long member, the distance to the measurement surface measured by the target position distance measuring means changes according to the magnitude of the warp of the measurement surface (the warp of the measurement surface in the direction along the longitudinal direction of the first long member). That is, when there is no warp in the measurement surface, the distance to the measurement surface measured by the target position distance measuring means is a predefined length. On the contrary, when there is a warp in the measurement surface, the distance to the measurement surface measured by the target position distance measuring means does not match the predefined length. That is, when the central portion of the warp measurement range of the measurement surface warps toward the near side (the side approaching the target position distance measuring means), the distance to the measurement surface measured by the target position distance measuring means becomes shorter than the predefined length, and this distance becomes shorter as the warp becomes larger. Conversely, when the central portion of the warp measurement range of the measurement surface warps toward the far side (the side moving away from the target position distance measuring means), the distance to the measurement surface measured by the target position distance measuring means becomes longer than the predefined length, and this distance becomes longer as the warp becomes larger.

[0019] On the other hand, in the measurement of the warp of the measurement surface in the direction along the longitudinal direction of the second long member, when it is assumed that there is no warp in the measurement surface (warp of the measurement surface in the direction along the longitudinal direction of the second long member), the distance from the target position distance measuring means to the measurement surface (for example, the average value of the distance to the reference part measured by one reference distance measuring means and the distance to the reference part measured by the other reference distance measuring means: hereinafter referred to as the specified distance) The actual measured distance with respect to will change according to the magnitude of the warp of the measurement surface. That is, when there is no warp in the measurement surface, the distance from the target position distance measuring means to the measurement surface measured will coincide with the specified distance. On the contrary, when there is a warp in the measurement surface, the distance from the target position distance measuring means to the measurement surface measured will not match the specified distance. That is, when the central part of the warp measurement range of the measurement surface is warped toward the front side (the side approaching the target position distance measuring means), the distance from the target position distance measuring means to the measurement surface measured will be shorter than the specified distance, and this distance will be shorter as the warp is larger. Conversely, when the central part of the warp measurement range of the measurement surface is warped toward the back side (the side moving away from the target position distance measuring means), the distance from the target position distance measuring means to the measurement surface measured will be longer than the specified distance, and this distance will be longer as the warp is larger.

[0020] Thus, in this solution means, it is possible to simultaneously measure the warp of the measurement surface in the direction along the longitudinal direction of the first long member and the warp of the measurement surface in the direction along the longitudinal direction of the second long member. In the warp measurement using the warp measurement jig in the prior art, it was necessary to individually perform the warp measurement in the horizontal direction and the warp measurement in the vertical direction of the measurement surface. However, in this solution means, since the warp measurement in each direction can be performed simultaneously, it is possible to improve the workability of the warp measurement.

[0021] Specifically, as an application form of each of the above-described solution means, the measurement surface is the outer wall of a house, and the reference part is the base line on the outer wall.

[0022] Generally, the base part of the outer wall of a house has relatively small unevenness (unevenness in the thickness direction of the outer wall) and is a highly flat part. In the measurement operation of the warp of the measurement surface using the warp measurement device according to this solution, by using this highly flat base part as the reference part on the measurement surface, and bringing a pair of contact means into contact or measuring the distance non-contact by a pair of reference distance measurement means, it becomes possible to measure the warp of the outer wall of a house with high accuracy.

[0023] Further, the first long member is arranged in a posture extending in the horizontal direction, and the second long member is arranged in a posture extending in the vertical direction, and is configured to measure the warp in the horizontal direction and the warp in the vertical direction of the measurement surface respectively.

[0024] Thereby, it is possible to simultaneously measure the warp in the horizontal direction and the warp in the vertical direction of the measurement surface, and it is possible to shorten the time required for measuring the warp of the measurement surface in each direction.

[0025] Further, it is provided with a telescopic pole for enabling measurement of the warp of the measurement surface located at a high place.

[0026] According to this, an operator can position the long member at a high place using the telescopic pole, and it becomes possible to measure the warp of the measurement surface located at the high place. For example, it becomes possible to easily measure the warp of the outer wall of the second floor or the third floor of a house without using a stepladder or a ladder.

Effect of the Invention

[0027] In the present invention, by using distance measurement means capable of measuring the distance to the measurement surface non-contact, it is possible to measure the warp of the measurement surface. Therefore, it is possible to improve the workability of measuring the warp of the measurement surface compared to the case of using a warp measurement jig in the prior art.

Brief Description of the Drawings

[0028]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Mode for Carrying Out the Invention

[0029] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, a case where the present invention is applied as a warpage measurement device capable of simultaneously measuring the warpage in the horizontal direction and the warpage in the vertical direction on the outer wall of a house (the surface of the outer wall: measurement surface) will be described. Further, in this embodiment, it will be described as measuring the warpage of the outer wall OW of the house shown in FIG. 7(a). As described above, the outer wall OW of the house shown in FIG. 7(a) is composed of outer wall panels with a concavo-convex pattern provided on the surface to enhance the design quality. The concave portions in the concavo-convex pattern of this outer wall OW serve as joints extending in the horizontal direction and the vertical direction respectively. And among these joints, the joints at predetermined intervals are used as reference joints. Since this reference joint is a portion with relatively small unevenness (for example, unevenness within 1 mm) in the vertical direction and the horizontal direction (unevenness in the thickness direction of the outer wall OW) and has a high flatness, it is a portion used for the warpage measurement of the outer wall OW by the warpage measurement device according to the present embodiment.

[0030] -Configuration of the Warpage Measurement Device- FIG. 1 is a rear view of the warpage measurement device 1 according to this embodiment. In this FIG. 1, a part of the telescopic pole 4 described later is shown broken. Further, FIG. 2 is a side view of the warpage measurement device 1 according to this embodiment (a view seen from the direction of arrow II in FIG. 1).

[0031] As shown in these figures, the warpage measurement device 1 according to this embodiment has a configuration in which a horizontal warpage measurement unit 2, a vertical warpage measurement unit 3, and a telescopic pole 4 are connected to each other by a connecting fitting 5. The connecting fitting 5 includes a substantially rectangular horizontal plate portion 51 to which the horizontal warpage measurement unit 2 is connected, a substantially trapezoidal first vertical plate portion 52 to which the vertical warpage measurement unit 3 is connected, and a substantially rectangular second vertical plate portion 53 to which the telescopic pole 4 is connected. The connection structure of each warpage measurement unit 2, 3 and the telescopic pole 4 is not limited to this.

[0032] (Horizontal Warpage Measurement Unit) The horizontal warpage measurement unit 2 is a unit for measuring the warpage of the outer wall OW of a house in the horizontal direction. This horizontal warpage measurement unit 2 includes a horizontally extending horizontal long member (first long member) 21, a pair of joint support pins (contact means) 22, 23, and one first laser displacement meter (distance measurement means, target position distance measurement means) 24.

[0033] The horizontal long member 21 is made of metal (for example, made of aluminum), and is formed of, for example, a bar having a rectangular cross-section, and is connected to the horizontal plate portion 51 of the connecting fitting 5 by means such as bolting. The length dimension of this horizontal long member 21 substantially coincides with the horizontal length dimension of the outer wall panel constituting the outer wall OW to be measured (the horizontal length dimension of one outer wall panel). For example, the length dimension of this horizontal long member 21 is 1000 mm.

[0034] As the target support pins 22 and 23, there are a first target support pin 22 attached via an attachment bracket 22a near the end on one side in the longitudinal direction of the horizontal long member 21 (the left side in FIG. 1), and a second target support pin 23 attached via an attachment bracket 23a near the end on the other side in the longitudinal direction of the horizontal long member 21 (the right side in FIG. 1). Each of the target support pins 22 and 23 projects in a horizontal direction orthogonal to the extending direction of the horizontal long member 21, and the protruding dimensions from this horizontal long member 21 are the same as each other. Also, the spacing dimension between the target support pins 22 and 23 (the spacing dimension in the direction along the longitudinal direction of the horizontal long member 21) is the same as the spacing dimension between a pair of reference targets on the outer wall OW (for example, a pair of reference targets located on both side portions of the outer wall panel and extending in the vertical direction) (the spacing dimension between position A and position B in FIG. 7(a)). Thus, in a state where the first target support pin 22 is brought into contact with position A of the reference target, it is possible to bring the second target support pin 23 into contact with position B of the reference target.

[0035] Incidentally, as the attachment structure of the target support pins 22 and 23 to the horizontal long member 21 by the attachment brackets 22a and 23a, the attachment brackets 22a and 23a disposed so as to hang down from the front surface (the surface facing the left side in FIG. 2) near both end portions in the longitudinal direction of the horizontal long member 21 are attached. Bolt holes (not shown in the drawing for the pin body of the second target support pin 23) provided in the back portion of the pin body 22b of the target support pins 22 and 23 are aligned with holes (not shown) formed in the attachment brackets 22a and 23a, and bolts 22c and 23c are screwed in from the back through these holes and the bolt holes, whereby each pin body 22b is supported by the attachment brackets 22a and 23a respectively. Incidentally, the attachment structure of the target support pins 22 and 23 is not limited to this.

[0036] The first laser displacement meter 24 is attached to the central portion in the longitudinal direction of the horizontal long member 21 via an L-shaped mounting bracket 24a, and is arranged so as to enable distance measurement in the horizontal direction (the direction along the protruding directions of the joint support pins 22 and 23). Note that the mounting structure of the first laser displacement meter 24 is not limited to this.

[0037] Specifically, as the arrangement position of the first laser displacement meter 24 in the extending direction (horizontal direction) of the horizontal long member 21, it is set at an intermediate position between the respective joint support pins 22 and 23 in this horizontal direction and at a position equidistant from each of the joint support pins 22 and 23. Note that the arrangement position of the first laser displacement meter 24 in the extending direction of the horizontal long member 21 is not limited to this, and it may be an intermediate position between the respective joint support pins 22 and 23 and a position closer to the first joint support pin 22, or a position closer to the second joint support pin 23. However, as will be described later, since the first laser displacement meter 24 measures the distance to the bottom of the reference joint on the outer wall OW (for example, position C in FIG. 7(a)), the first laser displacement meter 24 needs to be arranged at a position facing the bottom of any reference joint on the outer wall OW in a state where each of the joint support pins 22 and 23 is in contact with the bottom of the reference joint (positions A and B in FIG. 7(a): corresponding to the reference portion on the measurement surface).

[0038] Further, specifically, as the arrangement position of the first laser displacement meter 24 in the vertical direction (a direction orthogonal to the extending direction of the horizontal long member 21), it is set at the same height position as each of the joint support pins 22 and 23. In the present embodiment, each of the mounting brackets 22a and 23a that support the respective joint support pins 22 and 23 extends downward from the horizontal long member 21, and each of the joint support pins 22 and 23 is located below the height position of the horizontal long member 21. Further, the mounting bracket 24a that supports the first laser displacement meter 24 also extends downward from the horizontal long member 21, and the first laser displacement meter 24 is located below the height position of the horizontal long member 21. Then, by making the mounting height position of each of the joint support pins 22 and 23 in each of the mounting brackets 22a and 23a coincide with the mounting height position of the first laser displacement meter 24 in the mounting bracket 24a, the distance from the lower surface of the horizontal long member 21 to each of the joint support pins 22 and 23 and the distance from the lower surface of the horizontal long member 21 to the first laser displacement meter 24 are set to be substantially the same, and the arrangement height positions of each of the joint support pins 22 and 23 and the first laser displacement meter 24 in the vertical direction are substantially coincident. Thereby, when each of the joint support pins 22 and 23 is in contact with the bottom of the reference joint (reference joints extending in the horizontal direction) (positions A and B in FIG. 7(a)), the first laser displacement meter 24 is configured to face the bottom of the reference joint (position C in FIG. 7(a)).

[0039] In addition, as shown in FIG. 2, in the present embodiment, the position of the first laser displacement meter 24 in the direction along the protruding direction of the joint support pins 22 and 23 is a position slightly retracted from the rear end position of the joint support pins 22 and 23 (the position of the right end in FIG. 2) (the position on the right side in FIG. 2).

[0040] (Vertical warp measurement unit) The vertical warp measurement unit 3 is a unit for measuring the warp in the vertical direction of the outer wall OW of the house. This vertical warp measurement unit 3 includes a vertical long member (second long member) 31 extending in the vertical direction, a second laser displacement meter (reference distance measuring means) 32, and a third laser displacement meter (reference distance measuring means) 33.

[0041] The vertical long member 31 is made of metal (for example, aluminum), like the horizontal long member 21, and is formed of a bar having a rectangular cross-section, for example, and is connected to the first vertical plate portion 52 of the connecting fitting 5 by means such as bolting. The length dimension of this vertical long member 31 substantially matches the vertical length dimension of the outer wall panel constituting the outer wall OW to be measured (the vertical length dimension of one outer wall panel). For example, the length dimension of this vertical long member 31 is 1000 mm.

[0042] The second laser displacement meter 32 is attached by an attachment bracket 32a near an end on one side in the longitudinal direction of the vertical long member 31 (the upper side in FIGS. 1 and 2).

[0043] The third laser displacement meter 33 is attached by an attachment bracket 33a near an end on the other side in the longitudinal direction of the vertical long member 31 (the lower side in FIGS. 1 and 2).

[0044] In addition, as the attachment structure of the laser displacement meters 32 and 33 to the vertical long member 31 by the attachment brackets 32a and 33a, the attachment brackets 32a and 33a are arranged to extend horizontally from the side surfaces (the surfaces facing the left side in FIG. 1) near both ends in the longitudinal direction of the vertical long member 31 and are attached to the vertical long member 31, and the laser displacement meters 32 and 33 are respectively supported by these attachment brackets 32a and 33a. Note that the attachment structure of each of the laser displacement meters 32 and 33 is not limited to this.

[0045] Specifically, as the arrangement positions of the laser displacement gauges 32 and 33 in the extending direction (vertical direction) of the vertical long member 31, each of the laser displacement gauges 32 and 33 is set to be at an equal distance from the first laser displacement gauge 24. Note that the arrangement positions of the laser displacement gauges 32 and 33 in the extending direction of this vertical long member 31 are not limited to this. The distance from the first laser displacement gauge 24 to the second laser displacement gauge 32 may be set to be longer than the distance from the first laser displacement gauge 24 to the third laser displacement gauge 33, or conversely, the distance from the first laser displacement gauge 24 to the third laser displacement gauge 33 may be set to be longer than the distance from the first laser displacement gauge 24 to the second laser displacement gauge 32.

[0046] Also, specifically, as the arrangement positions of the laser displacement gauges 32 and 33 in the horizontal direction (a direction orthogonal to the extending direction of the vertical long member 31), the positions in the horizontal direction are set to be the same as the positions in the horizontal direction of the first laser displacement gauge 24. In the present embodiment, the mounting brackets 32a and 33a that support the laser displacement gauges 32 and 33 respectively extend in the horizontal direction from the vertical long member 31. By making the mounting positions (positions in the horizontal direction) of the laser displacement gauges 32 and 33 on the mounting brackets 32a and 33a coincide with the positions in the horizontal direction of the first laser displacement gauge 24, the distance from the side surface of the vertical long member 31 to each of the laser displacement gauges 32 and 33 is set to be substantially the same as the distance from the side surface of the vertical long member 31 to the first laser displacement gauge 24, and the arrangement positions of the laser displacement gauges 32 and 33 in the horizontal direction and the arrangement position of the first laser displacement gauge 24 are substantially coincident. That is, the laser displacement gauges 32 and 33 and the first laser displacement gauge 24 are arranged on the same straight line in the vertical direction. As a result, when each of the laser displacement gauges 32 and 33 is in a state of facing the bottom of the reference joint (the reference joint extending in the vertical direction), the first laser displacement gauge 24 is also configured to face the bottom of the reference joint.

[0047] (Telescopic pole) The telescopic pole 4 is made of metal (for example, aluminum) and is connected to the second vertical plate portion 53 of the connecting fitting 5. As this connection structure, U-shaped connecting fittings 54, 54 fastened to the second vertical plate portion 53 of the connecting fitting 5 are wound around the telescopic pole 4.

[0048] The telescopic pole 4 includes a first pole portion 41 connected to the second vertical plate portion 53, a second pole portion 42 that can slide relative to the first pole portion 41 (slide along the longitudinal direction of the telescopic pole 4) and can accommodate the lower portion of the first pole portion 41, a locking portion 43 that locks the relative position between the first pole portion 41 and the second pole portion 42, and a grip 44 provided at the lower end portion of the second pole portion 42. Thereby, by loosening the locking portion 43 and relatively sliding the first pole portion 41 and the second pole portion 42, and locking by the locking portion 43, the length dimension of the entire telescopic pole 4 can be made variable.

[0049] In the warp measurement device 1 of the present embodiment, by providing such a telescopic pole 4, by increasing the length of the telescopic pole 4, it becomes possible to easily measure the warp of the outer wall OW at a high place such as the second floor portion or the third floor portion of a house.

[0050] - Configuration of the control system of the warp measurement device - Next, the configuration of the control system of the warp measurement device 1 will be described. FIG. 3 is a block diagram showing the configuration of the control system of the warp measurement device 1 according to the present embodiment.

[0051] As shown in FIG. 3, the control system of the warp measurement device 1 includes a measurement switch 200, each laser displacement meter 24, 32, 33, a control device 100, and a display device 300.

[0052] The measurement switch 200 is disposed, for example, on the grip 44 of the telescopic pole 4 and is a switch that is pressed by an operator when starting the warpage measurement by the warpage measurement device 1. When the measurement switch 200 is pressed by the operator, it transmits a measurement command signal to each of the laser displacement meters 24, 32, and 33. As a result, the distance to the bottom of the reference target point is measured by each of the laser displacement meters 24, 32, and 33.

[0053] When each of the laser displacement meters 24, 32, and 33 receives the measurement command signal from the measurement switch 200, it projects a laser beam toward the bottom of the reference target point and measures the distance to the bottom of the reference target point by receiving the reflected light. The measurement results of the distances to the bottoms of the reference target points by each of the laser displacement meters 24, 32, and 33 are transmitted to the control device 100.

[0054] The control device 100 includes, for example, a processor such as a CPU, a ROM that stores a control program, a RAM that temporarily stores data, and an input / output port, etc. The control device 100 includes a horizontal warpage calculation unit 110 and a vertical warpage calculation unit 120 as functional units realized by the control program.

[0055] Before explaining the principle of the warpage measurement of the outer wall OW in these horizontal warpage calculation units 110 and vertical warpage calculation units 120, the implementation state of the warpage measurement operation will be explained. FIG. 4 is a diagram showing the implementation state of the warpage measurement operation using the warpage measurement device 1 according to the present embodiment. As shown in this FIG. 4, in the warpage measurement operation using the warpage measurement device 1, the operator U grips the grip 44 of the telescopic pole 4, and each target support pin 22, 23 of the horizontal warpage measurement unit 2 abuts against the bottom of the reference target on the outer wall OW (for example, positions A and B in FIG. 7(a)), respectively. Also, each laser displacement meter 24, 32, 33 is opposed to the bottom of the reference target extending vertically on the outer wall OW. In this state, when the operator U presses the measurement switch 200, the distances to the bottom of the reference target are measured non - contact by the respective laser displacement meters 24, 32, 33. When these distance information are input into the control device 100, the horizontal warpage of the outer wall OW is measured by the horizontal warpage calculation unit 110 and the vertical warpage of the outer wall OW is measured by the vertical warpage calculation unit 120.

[0056] The warpage information of the outer wall OW obtained by each calculation unit 110, 120 is output to the display device 300 and will be displayed on the display device 300. This display device 300 may be disposed near the grip 44 of the telescopic pole 4, or the information may be displayed by an application installed in a terminal device (for example, a smartphone, etc.) carried by the operator U, and the terminal device may function as the display device 300.

[0057] (Principle of Warpage Measurement by Horizontal Warpage Calculation Unit) Based on the information received from the first laser displacement meter 24 (measurement information of the distance to the bottom of the reference target), the horizontal warpage calculation unit 110 calculates the horizontal warpage of the outer wall OW and outputs the calculation result (warpage information) to the display device 300.

[0058] Using FIG. 5, a method for calculating the warp in the horizontal direction in the horizontal warp calculation unit 110 will be described. This FIG. 5 is a view from above showing the positional relationship between one joint support pin (first joint support pin) 22 and the first laser displacement meter 24. As described above, the position of the first laser displacement meter 24 in the direction along the protruding directions of the joint support pins 22 and 23 is slightly retracted from the rear end positions of the joint support pins 22 and 23. For this reason, as shown in FIG. 5(a), the protruding dimension t1 of the first joint support pin 22 (the protruding dimension in the horizontal direction orthogonal to the extending direction of the horizontal long member 21, which is the same dimension in the second joint support pin 23: in FIG. 5, the protruding dimension of the pin body 22b from the mounting bracket 22a), the difference between the protruding dimension t1 and the dimension t2 from the tip position of the first joint support pin 22 to the tip position of the first laser displacement meter 24 (hereinafter, this dimension difference is referred to as the offset dimension t3), and the distance from the first laser displacement meter 24 to the joint bottom of the reference joint are used to calculate the warp in the horizontal direction of the outer wall OW. Incidentally, when the rear end positions of the joint support pins 22 and 23 and the tip position of the first laser displacement meter 24 are made to coincide in the horizontal direction, the offset dimension t3 becomes zero. Therefore, the warp in the horizontal direction of the outer wall OW is calculated using the protruding dimension t1 of the first joint support pin 22 and the distance from the first laser displacement meter 24 to the joint bottom of the reference joint.

[0059] The solid line in FIG. 5(b) is a view showing the state of horizontal warp measurement when there is no warp in the outer wall OW. As shown in FIG. 5(b), when there is no warp in the outer wall OW, the distance from the first laser displacement meter 24 to the joint bottom of the reference joint coincides with the sum of the protruding dimension t1 of the first joint support pin 22 and the offset dimension t3 (t2 = t1 + 13). In this case, the horizontal warp calculation unit 110 outputs information indicating that there is no warp in the horizontal direction of the outer wall OW to the display device 300. As a result, information indicating that there is no warp in the horizontal direction of the outer wall OW is displayed on the display device 300.

[0060] On the other hand, when the distance from the first laser displacement meter 24 to the bottom of the reference target is shorter than the sum of the protruding dimension t1 of the first target support pin 22 and the offset dimension t3 (refer to the position of the outer wall OW indicated by the dashed line in FIG. 5(b)), the horizontal warp calculation unit 110 determines that the outer wall OW is warped outward (the side approaching the first laser displacement meter 24), and outputs information on the direction of this warp and information on the amount of warp based on this shortened distance to the display device 300. As a result, information on the direction and amount of warp is displayed on the display device 300. Also, when the distance from the first laser displacement meter 24 to the bottom of the reference target is longer than the sum of the protruding dimension t1 of the first target support pin 22 and the offset dimension t3 (refer to the position of the outer wall OW indicated by the chain double-dashed line in FIG. 5(b)), the horizontal warp calculation unit 110 determines that the outer wall OW is warped inward (the side moving away from the first laser displacement meter 24), and outputs information on the direction of this warp and information on the amount of warp based on this lengthened distance to the display device 300. As a result, information on the direction and amount of warp is displayed on the display device 300.

[0061] (Principle of warp measurement by the vertical warp calculation unit) The vertical warp calculation unit 120 calculates the vertical warp of the outer wall OW based on the respective information (measurement information on the distance to the bottom of the reference target) received from the first laser displacement meter 24, the second laser displacement meter 32, and the third laser displacement meter 33, and outputs the calculation result to the display device 300.

[0062] The method of calculating the vertical warp in the vertical warp calculation unit 120 will be described with reference to FIG. 6. This FIG. 6 is a side view of the positional relationship among the first laser displacement meter 24, the second laser displacement meter 32, and the third laser displacement meter 33.

[0063] In the warp measurement operation shown in FIG. 4, since the operator U only brings each of the target support pins 22 and 23 into contact with the bottom of the reference target on the outer wall OW, the posture of the warp measurement device 1 around the vertical axis (particularly the extending direction of the horizontal long member 21) is parallel to the extending direction of the bottom of the target (the bottom of the target extending along the horizontal direction). However, the posture of the warp measurement device 1 around the horizontal axis (particularly the extending direction of the vertical long member 31) may not be parallel to the extending direction of the bottom of the target (the bottom of the target extending along the vertical direction). That is, as shown in FIG. 6, although each of the first laser displacement meter 24, the second laser displacement meter 32, and the third laser displacement meter 33 faces the bottom of the target on the outer wall OW, the laser displacement meters 24, 32, and 33 do not necessarily line up vertically. Even in such a situation, in order to accurately measure the warp in the vertical direction, as the arithmetic processing in the vertical warp arithmetic unit 120, the average value of the distance t4 to the bottom of the target measured by the second laser displacement meter 32 and the distance t5 to the bottom of the target measured by the third laser displacement meter 33 is calculated, and this average value is compared with the distance t6 to the bottom of the target measured by the first laser displacement meter 24. Then, as shown by the solid line in FIG. 6, when there is no warp in the outer wall OW, the average value and the distance t6 to the bottom of the target measured by the first laser displacement meter 24 will match. This is because when the first laser displacement meter 24 is at the intermediate position between the second laser displacement meter 32 and the third laser displacement meter 33 (when the distance between the first laser displacement meter 24 and the second laser displacement meter 32 and the distance between the first laser displacement meter 24 and the third laser displacement meter 33 are the same), the distance (distance TA in FIG. 6) between the second laser displacement meter 32 and the first laser displacement meter 24 in the horizontal direction orthogonal to the extending direction of the outer wall OW and the distance (distance TB in FIG. 6) between the first laser displacement meter 24 and the third laser displacement meter 33 in the same horizontal direction are the same. And when the average value and the distance t6 to the bottom of the target measured by the first laser displacement meter 24 match, the vertical warp arithmetic unit 120 outputs information indicating that there is no warp in the vertical direction of the outer wall OW to the display device 300. As a result, the display device 300 displays information indicating that there is no warp in the vertical direction of the outer wall OW.

[0064] On the other hand, when the distance to the bottom of the ground surface measured by the first laser displacement meter 24 is shorter than the average value (refer to the position of the outer wall OW indicated by the dashed-dotted line in FIG. 6), the vertical warp calculation unit 120 determines that the outer wall OW is warped outward (the side approaching the first laser displacement meter 24), and outputs information on the direction of this warp and information on the amount of warp based on this shortened distance to the display device 300. As a result, the display device 300 displays information on the direction and amount of warp. Also, when the distance to the bottom of the ground surface measured by the first laser displacement meter 24 is longer than the average value (refer to the position of the outer wall OW indicated by the double-dashed line in FIG. 6), the vertical warp calculation unit 120 determines that the outer wall OW is warped inward (the side moving away from the first laser displacement meter 24), and outputs information on the direction of this warp and information on the amount of warp based on this lengthened distance to the display device 300. As a result, the display device 300 displays information on the direction and amount of warp.

[0065] - Effects of the Embodiment - In the measurement of the warpage of the outer wall using a conventional warpage measuring jig, three or more workers were required (a worker who presses one joint support pin against the bottom of one reference joint, a worker who presses the other joint support pin against the bottom of the other reference joint, and a worker who measures the distance between the central portion in the longitudinal direction of the long member and the outer wall using a steel tape). Also, it was necessary to separately perform the warpage measurement in the horizontal direction and the warpage measurement in the vertical direction. Further, since the measurement was performed using a steel tape, measurement variations depending on the skill level of the worker were a concern, and the reliability of the measurement could not be sufficiently ensured. Furthermore, in order to measure the warpage of the outer wall in the second floor portion, third floor portion, etc. of a house, each worker had to perform the above work using a step ladder, a ladder, etc. On the other hand, in the warpage measuring device 1 according to the present embodiment, a single worker can simultaneously perform the warpage measurement in the horizontal direction and the warpage measurement in the vertical direction. Also, since the measurement is performed by the laser displacement meters 24, 32, 33, the warpage can be measured with high accuracy. In addition, by extending the telescopic pole 4, the worker can position each warpage measurement unit 2, 3 at a high place, so that it becomes possible to easily measure the warpage of the outer wall OW located at a high place. Also, since a single worker can perform the warpage measurement, it is possible to easily measure the warpage of the outer wall OW even if the working space (the space for entering to perform the warpage measurement) is narrow. Thus, according to the warpage measuring device 1 according to the present embodiment, a significant improvement in the workability of the warpage measurement can be achieved.

[0066] -Other Embodiments- Note that the present invention is not limited to the above-described embodiment, and all modifications and applications included in the scope of the claims and the scope equivalent thereto are possible.

[0067] For example, in the above-described embodiment, the case where the present invention is applied to the warp measurement device 1 that can simultaneously measure the warp in the horizontal direction and the warp in the vertical direction on the outer wall OW of the house was described. The present invention is not limited to this, and it can also be applied to a warp measurement device that measures the warp of a measurement surface other than the outer wall OW of the house. Further, each warp measurement unit 2, 3 is configured to be rotatable about a horizontal axis (a horizontal axis perpendicular to the extending direction of the elongated members 21, 31 of each warp measurement unit 2, 3), and the present invention can also be applied to a warp measurement device that can measure the warp in various directions.

[0068] Further, the direction for measuring the warp is not limited to the horizontal direction and the vertical direction, and the present invention can also be applied to a warp measurement device that measures the warp in a direction (diagonal direction) inclined by a predetermined angle with respect to each of the horizontal direction and the vertical direction.

[0069] Further, as the technical idea of the present invention, it is not necessarily required to include both the horizontal warp measurement unit 2 and the vertical warp measurement unit 3, and it is not necessarily required to include the telescopic pole 4. That is, the warp measurement device 1 is constituted only by the horizontal warp measurement unit 2, the warp measurement device 1 is constituted only by the vertical warp measurement unit 3, the warp measurement device 1 is constituted only by the horizontal warp measurement unit 2 and the telescopic pole 4, and the warp measurement device 1 is constituted only by the vertical warp measurement unit 3 and the telescopic pole 4 are also within the scope of the technical idea of the present invention.

[0070] Furthermore, in the above-described embodiment, the warpage in the horizontal direction of the outer wall OW of the house is measured by a unit (horizontal warpage measurement unit 2) including a horizontally long member 21, a pair of joint support pins 22 and 23, and one first laser displacement meter 24. The present invention is not limited to this, and the warpage in the vertical direction of the outer wall OW of the house may be measured by a unit having this configuration. Also, in the above-described embodiment, the warpage in the vertical direction of the outer wall OW of the house is measured by a unit (vertical warpage measurement unit 3) including a vertically long member 31, a second laser displacement meter 32, and a third laser displacement meter 33. The present invention is not limited to this, and the warpage in the horizontal direction of the outer wall OW of the house may be measured by a unit having this configuration.

[0071] Also, in the above-described embodiment, only one first laser displacement meter 24 as the target position distance measuring means is provided, and the measurement target position of the warpage of the outer wall OW of the house is set to one location. The present invention is not limited to this, and a plurality of laser displacement meters serving as the target position distance measuring means may be provided at a plurality of locations, and a plurality of locations on the outer wall OW of the house may be set as the measurement target positions of the warpage. For example, laser displacement meters may be provided at a plurality of locations in the extending direction of the horizontally long member 21 in the horizontal warpage measurement unit 2, or laser displacement meters may be provided at a plurality of locations in the extending direction of the vertically long member 31 in the vertical warpage measurement unit 3. According to this, when the warpage state of the outer wall OW of the house has a wavy shape at a plurality of locations, it is possible to measure the presence or absence and the amount of warpage at each location.

[0072] Also, in the above-described embodiment, the first laser displacement meter 24 is made to serve both as the target position distance measuring means for measuring the warpage in the horizontal direction and as the target position distance measuring means for measuring the warpage in the vertical direction. This is to reduce the number of laser displacement meters required for the warpage measuring device 1, but the present invention is not limited to this, and a laser displacement meter functioning as the target position distance measuring means for measuring the warpage in the horizontal direction and a laser displacement meter functioning as the target position distance measuring means for measuring the warpage in the vertical direction may be separately provided.

[0073] In addition, in the above-described embodiment, a laser displacement meter is adopted as each distance measuring means. The present invention is not limited to this, and other distance measuring means (for example, distance measuring means using ultrasonic waves, etc.) may be adopted.

[0074] In addition, the embodiments and other matters disclosed in this specification can also be grasped as the technical ideas shown in the following supplementary notes.

[0075] (Supplementary Note 1) A warp measuring device for measuring the warp of a measurement surface, A long member having a predetermined length, A pair of contact means that are respectively disposed at positions having a predetermined interval in the longitudinal direction of the long member and have the same protruding dimension from the long member, and are respectively brought into contact with a reference portion on the measurement surface when measuring the warp of the measurement surface; At least one distance measuring means disposed between the arrangement positions of the pair of contact means in the longitudinal direction of the long member and capable of non-contact measurement of the distance to the measurement surface, characterized in that the warp measuring device comprises the same.

[0076] (Supplementary Note 2) A warp measuring device for measuring the warp of a measurement surface, A long member having a predetermined length, A pair of reference distance measuring means that are respectively disposed at positions having a predetermined interval in the longitudinal direction of the long member and capable of non-contact measurement of the distance to a reference portion on the measurement surface, At least one target position distance measuring means disposed between the arrangement positions of the pair of reference distance measuring means in the longitudinal direction of the long member and capable of non-contact measurement of the distance to the measurement surface, characterized in that the warp measuring device comprises the same.

[0077] (Supplementary Note 3) A warp measuring device for measuring the warp of a measurement surface, A first long member having a predetermined length, A second long member having a predetermined length and extending in a direction intersecting the extending direction of the first long member, A pair of contact means that are respectively disposed at positions having a predetermined interval in the longitudinal direction of the first long member, and the protruding dimensions from the first long member are the same as each other, and are respectively abutted against each reference portion at a position having a predetermined distance in the longitudinal direction of the first long member on the measurement surface when measuring the warp of the measurement surface; A pair of reference distance measuring means that are respectively disposed at positions having a predetermined interval in the longitudinal direction of the second long member, and can respectively measure the distances to each reference portion at a position having a predetermined distance in the longitudinal direction of the second long member on the measurement surface in a non-contact manner; At least one target position distance measuring means that is disposed between the arrangement positions of the pair of contact means in the longitudinal direction of the first long member and between the arrangement positions of the pair of reference distance measuring means in the longitudinal direction of the second long member, and can measure the distance to the measurement surface in a non-contact manner. A warp measuring device characterized by comprising:

[0078] (Appendix 4) In the warp measuring device according to Appendix 1, 2 or 3, The measurement surface is an outer wall of a house, and the reference portion is a plaster base on the outer wall. A warp measuring device characterized by this.

[0079] (Appendix 5) In the warp measuring device according to Appendix 3, The first long member is in a posture extending in the horizontal direction, the second long member is in a posture extending in the vertical direction, and is configured to measure the warp in the horizontal direction and the warp in the vertical direction of the measurement surface respectively. A warp measuring device characterized by this.

[0080] (Appendix 6) In the warp measuring device according to any one of Appendices 1 to 5, A warp measuring device characterized by comprising a telescopic pole for measuring the warp of the measurement surface located at a high place.

Industrial Applicability

[0081] The present invention is applicable to a warp measurement device for measuring the warp of the outer wall of a house.

Explanation of Signs

[0082] 1 Warp measurement device 21 Horizontal long member (long member, first long member) 22 First joint support pin (contact means) 23 Second joint support pin (contact means) 24 First laser displacement meter (distance measurement means, target position distance measurement means) 31 Vertical long member (long member, second long member) 32 Second laser displacement meter (reference distance measurement means) 33 Third laser displacement meter (reference distance measurement means) 4 Telescopic pole OW Outer wall (measurement surface)

Claims

1. A warp measurement device for measuring the warp of a measurement surface, comprising: a long member having a predetermined length; a pair of contact means respectively disposed at positions spaced apart by a predetermined interval in the longitudinal direction of the long member, the protruding dimensions from the long member being the same as each other, and each being brought into contact with a reference portion on the measurement surface when measuring the warp of the measurement surface; at least one distance measuring means disposed between the pair of contact means in the longitudinal direction of the long member and capable of non-contact measurement of the distance to the measurement surface, characterized in that the warp measurement device is provided with the above.

2. A warp measurement device for measuring the warp of a measurement surface, comprising: a long member having a predetermined length; a pair of reference distance measuring means respectively disposed at positions spaced apart by a predetermined interval in the longitudinal direction of the long member and each capable of non-contact measurement of the distance to a reference portion on the measurement surface; at least one target position distance measuring means disposed between the pair of reference distance measuring means in the longitudinal direction of the long member and capable of non-contact measurement of the distance to the measurement surface, characterized in that the warp measurement device is provided with the above.

3. A warp measurement device for measuring the warp of a measurement surface, comprising: a first long member having a predetermined length; a second long member having a predetermined length and extending in a direction intersecting the extending direction of the first long member; a pair of contact means respectively disposed at positions spaced apart by a predetermined interval in the longitudinal direction of the first long member, the protruding dimensions from the first long member being the same as each other, and each being brought into contact with each reference portion at a position having a predetermined distance in the longitudinal direction of the first long member on the measurement surface when measuring the warp of the measurement surface; a pair of reference distance measuring means respectively disposed at positions spaced apart by a predetermined interval in the longitudinal direction of the second long member and each capable of non-contact measurement of the distance to each reference portion at a position having a predetermined distance in the longitudinal direction of the second long member on the measurement surface; at least one target position distance measuring means disposed between the pair of contact means in the longitudinal direction of the first long member and between the pair of reference distance measuring means in the longitudinal direction of the second long member and capable of non-contact measurement of the distance to the measurement surface, characterized in that the warp measurement device is provided with the above.

4. In the warp measurement device according to claim 1, 2 or 3, The measurement surface is an outer wall of a house, and the reference part is a ground base of the outer wall. A warp measurement device characterized by this.

5. In the warp measurement device according to claim 3, the first long member is in a posture extending in the horizontal direction, the second long member is in a posture extending in the vertical direction, and the warp in the horizontal direction and the warp in the vertical direction of the measurement surface are respectively measured. A warp measurement device characterized by being configured to do so.

6. In the warp measurement device according to claim 1, 2 or 3, A warp measurement device characterized by including a telescopic pole for measuring the warp of the measurement surface located at a high place.

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