Jig Unit

Abstract

To provide a jig unit for easily and accurately measuring a distance between corner parts opposed to each other of a frame by using a laser measuring device.SOLUTION: A jig unit 10 used when measuring a distance between a first corner part 102 and a second corner part 104 opposed to the first corner part of a frame 100 by a laser measuring device comprises: a first jig 12 which is arranged at the first corner part 102; and a second jig 30 which is arranged at the second corner part 104. The first jig 12 comprises: a first wall 14 which is arranged along one of two first extension parts intersecting each other at the first corner part 102; a second wall 16 which is arranged along the other; and a placement table 18 which is supported by the first wall 14 and the second wall 16 and on which the laser measuring device is placed. The second jig 30 comprises: a third wall 32 which is arranged along one of two second extension parts intersecting each other at the second corner part 104; and a fourth wall 34 which is arranged along the other. Light is emitted to an intersecting portion between the third wall 32 and the fourth wall 34.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a jig unit, and more particularly to a jig unit used when measuring the distance between opposing corners of a frame that constitutes the skeleton of a building using a laser measuring device. [Background technology]

[0002] Conventionally, the diagonal dimensions of the outer shapes of frames and other components used in so-called system buildings, which are constructed using standardized components, and the diagonal dimensions of openings have been measured using a tape measure (convex). Summary of the Invention [Problem to be solved by the invention]

[0003] However, when measuring with a convex, one person must hook the convex claws on one corner of the frame and then move to the opposite corner to take the measurement. This can cause problems, such as the convex claws coming off while the person is moving, requiring the measurement to be redone. Furthermore, when measuring the diagonal dimensions of an opening, the convex claws cannot be hooked onto the frame. Therefore, to avoid these problems, two people are required to perform the measurement.

[0004] Furthermore, when there is a warp in the material of the part where the diagonal is being measured, when the diagonal dimension is long and the convex tape bends, or when measurements are taken outdoors and the convex tape cannot be applied due to the influence of wind, it is difficult to measure accurately using the convex method, and there is also the problem that measurements vary depending on the operator.

[0005] Furthermore, when multiple frames are stacked, the top frame is about 1.6 to 2.0 m high, making convex measurement difficult. Also, convex measurement is difficult when there is no space on all four sides of the frame for people to pass through.

[0006] At construction sites, laser measuring devices are used to measure distances, but the diagonal dimensions of frames have not been measured using laser measuring devices.

[0007] Therefore, the present invention has been made in consideration of the above-mentioned problems, and its object is to provide a jig unit for easily and accurately measuring the distance between opposing corners of a frame using a laser measuring device. [Means for solving the problem]

[0008] The above-mentioned problem is solved by a jig unit of the present invention, which is a jig unit used when measuring the distance between a first corner of a frame that constitutes the main body of a building and a second corner of the frame that is located opposite the first corner using a laser measurement device, and which has a first jig that is arranged at the first corner and on which the laser measurement device is placed, and a second jig that is arranged at the second corner and on which light from the laser measurement device is irradiated, wherein the first jig has a first wall that is arranged along one of two first extension portions that intersect with each other at the first corner, a second wall that is arranged along the other of the two first extension portions, and a mounting table that is supported by the first wall and the second wall and on which the laser measurement device is placed, and the second jig has a third wall that is arranged along one of two second extension portions that intersect with each other at the second corner, and a fourth wall that is arranged along the other of the two second extension portions, and light is irradiated onto the intersection of the third wall and the fourth wall.

[0009] With the jig unit of the present invention configured as described above, the first jig and the second jig can be easily installed on the corners of the frame. This allows a single operator to easily and accurately position the laser measurement device. It also reduces variations in measurement results depending on the operator.

[0010] In the jig unit, it is preferable that the first jig has a protrusion on the top surface of the mounting base, the protrusion being fitted into a recess provided in the case of the laser measurement device. According to the above configuration, it is possible to position the laser measurement device with high precision relative to the first jig, thereby more effectively demonstrating the effects of the jig unit of the present invention.

[0011] In the jig unit described above, it is more preferable that the top surface of the mounting table is a horizontal surface when the first jig is disposed at the first corner portion. According to the above configuration, the laser measurement device can be stably installed on the mounting table. Also, it is possible to reliably irradiate the laser light from the laser measurement device installed on the mounting table onto the second jig. Therefore, the effects of the jig unit of the present invention are more effectively exhibited.

[0012] Furthermore, in the jig unit described above, it is even more preferable that the mounting base of the first jig is engaged with the two first extension portions and the first jig is disposed at the first corner portion. According to the above configuration, the first jig can be easily and reliably installed at the first corner portion, which allows the jig unit of the present invention to exhibit its effects more effectively.

[0013] Furthermore, in the jig unit described above, it is even more preferable that a first jig recess is provided at the intersection of the first wall and the second wall of the first jig. According to the above configuration, the first jig recess allows the first jig to be positioned while avoiding the protrusions caused by the weld beads at the corners of the frame, thereby more effectively demonstrating the effects of the jig unit of the present invention.

[0014] Furthermore, in the jig unit described above, it is even more preferable that a sheet-shaped magnet is provided on a main surface of at least one of the first wall and the second wall of the first jig. According to the above configuration, it is possible to stabilize the first jig installed at the corner of the frame, thereby more effectively demonstrating the effects of the jig unit of the present invention.

[0015] Furthermore, in the above jig unit, it is preferable that each of the third wall and fourth wall of the second jig has an abutting portion that abuts against the second extension portion and an irradiated portion onto which light from the laser measurement device is irradiated. According to the above configuration, the surface that contacts the second extending portion and the surface that is irradiated with light are on the same plane, which allows the laser measurement device to measure the diagonal dimension with greater accuracy, thereby more effectively demonstrating the effects of the jig unit of the present invention.

[0016] Furthermore, it is preferable that the above-mentioned jig unit has a flange portion between the abutment portion and the irradiated portion that extends in a direction intersecting the third wall and the fourth wall, and that the flange portion is engaged with the two second extension portions so that the second jig is positioned at the second corner portion. According to the above configuration, the second jig can be easily and reliably installed at the second corner portion, which allows the jig unit of the present invention to exhibit its effects more effectively.

[0017] In the jig unit, it is preferable that a second jig-side recess is provided at the intersection of the third wall and the fourth wall of the abutting portion. According to the above configuration, the second jig recess allows the second jig to be positioned while avoiding the protrusions caused by the weld beads at the corners of the frame, thereby more effectively demonstrating the effects of the jig unit of the present invention.

[0018] In the jig unit described above, it is preferable that the second jig is white. According to the above-described configuration, the irradiated laser light can be reflected appropriately, and therefore the effects of the jig unit of the present invention can be more effectively exhibited.

[0019] In the jig unit, it is preferable that a sheet-shaped magnet is provided on a main surface of at least one of the third wall and the fourth wall of the second jig. According to the above configuration, it is possible to stabilize the second jig installed at the corner of the frame, thereby more effectively demonstrating the effects of the jig unit of the present invention.

[0020] In the jig unit, the first jig and the second jig are preferably resin molded products. According to the above-described configuration, the jig unit can be manufactured easily and inexpensively, and therefore the effects of the jig unit of the present invention can be more effectively exhibited. [Effects of the Invention]

[0021] According to the jig unit of the present invention, it is possible to provide a jig unit for easily and accurately measuring the distance between opposing corners of a frame using a laser measuring device. [Brief explanation of the drawings]

[0022] [Figure 1] FIG. 1 is a perspective view showing an example of a jig unit of the present invention. [Figure 2] 10A and 10B are diagrams for explaining a frame diagonal to be measured using the jig unit of the present invention. [Figure 3] 10A and 10B are conceptual diagrams for explaining a method for measuring a frame diagonal using the jig unit of the present invention. [Figure 4] 2 is a perspective view of a first jig included in the jig unit shown in FIG. 1. FIG. [Figure 5] 5 is a perspective view of the first jig shown in FIG. 4, seen from a different angle. [Figure 6] 5 is a perspective view of the first jig shown in FIG. 4, seen from a different angle. [Figure 7] 1. FIG. 4 is a perspective view of a second jig included in the jig unit shown in FIG. [Figure 8] FIG. 8 is a top view of the second jig shown in FIG. 7. [Figure 9] FIG. 8 is a bottom view of the second jig shown in FIG. 7. [Figure 10] 10A and 10B are diagrams for explaining a state in which the jig unit of the present invention is installed. [Figure 11] 10A and 10B are diagrams for explaining another example of a state in which the jig unit of the present invention is installed. DETAILED DESCRIPTION OF THE INVENTION

[0023] <<Regarding a jig unit according to one embodiment of the present invention>> Hereinafter, one embodiment of the present invention (hereinafter referred to as the present embodiment) will be described with reference to the accompanying drawings. In the drawings, each component is shown somewhat simplified and schematic to make the explanation easier to understand, and the size (dimensions) of each component and the spacing between components shown in the drawings may differ from the actual ones.

[0024] The following explanation will be about measuring the diagonal dimensions of frames used in system buildings, which are buildings that standardize and systematize components that make up buildings such as factories, warehouses, logistics facilities, and store buildings. However, the present invention can also be applied to frames that make up buildings other than system buildings.

[0025] FIG. 1 is a perspective view showing an example of a jig unit of the present invention. As shown in FIG. 1, jig unit 10 of the present invention includes first jig 12 and second jig 30. Jig unit 10 of the present invention is a jig unit for measuring, using a laser measurement device, the diagonal dimensions between opposing corners of the exterior of frame 100 constituting the skeleton of a building, as well as the diagonal dimensions between opposing corners of opening 110 in frame 100, as shown in the plan view of FIG. 2. As shown in FIG. 2, the diagonal dimensions between the opposing corners of frame 100 are distance c1 between corner 102 and corner 104 and distance c2 between corner 106 and corner 108. Furthermore, the diagonal dimensions between the opposing corners of opening 110 in frame 100 are distance h1 between corner 112 and corner 114 and distance h2 between corner 116 and corner 118. In the present invention, the terms "1st" and "2nd" in the first corner and second corner are used for convenience to distinguish between the corner where the first jig 12 is placed and the corner where the second jig 30 is placed. Therefore, the terms "1st" and "2nd" in the present invention have no technical meaning, and the first corner and the second corner may be any of the four corners (102 to 108) in Fig. 2 as long as they are opposite each other.

[0026] As an example, when measuring the diagonal dimension of the outer shape of frame 100, that is, the dimension between opposing outer corners, as shown in Fig. 3, a first jig 12 is placed at a corner (corresponding to an outer corner, first corner) of frame 100, a second jig 30 is placed at a corner (corresponding to a second corner) opposite the corner where first jig 12 is placed, a laser measuring device LM is placed on first jig 12, and the diagonal dimension between the opposing corners is measured by irradiating laser light from laser measuring device LM to second jig 30. At this time, the orientation of laser measuring device LM is changed as appropriate to measure the longest distance, as shown in Fig. 3.

[0027] Fig. 4 shows a perspective view of the first jig 12 included in the jig unit 10 of the present invention as seen from above, and Fig. 5 shows a perspective view of the first jig 12 as seen from below. Also, Fig. 6 shows a perspective view of the first jig 12 as seen from the opposite side to that of Fig. 5.

[0028] As shown in Figures 4 to 6, the first jig 12 has a first wall 14, a second wall 16, a mounting base 18, a protrusion 20, a first jig side recess 22, a first jig side recess 24, and a magnet sheet 26.

[0029] The first wall 14 is a substantially rectangular plate-like portion, and is disposed along one of the two first extension portions that intersect with each other at the first corner when the first jig 12 is installed at the first corner. That is, the first wall 14 is disposed along one of the two frame side surfaces that form the first corner (see FIG. 10).

[0030] The second wall 16 is a generally rectangular plate-like portion, and is disposed along the other of the two first extension portions that intersect with each other at the first corner when the first jig 12 is installed at the first corner. That is, the second wall 16 is disposed along the other of the two frame side surfaces that form the first corner (see FIG. 10).

[0031] The first wall 14 and the second wall 16 are connected at their ends and are arranged so that their main surfaces (largest surfaces) are perpendicular to each other. In other words, the first wall 14 and the second wall 16 form a substantially L-shape when viewed in a direction parallel to the main surfaces of the first wall 14 and the second wall 16 (a direction parallel to the ridge line where the first wall 14 and the second wall 16 intersect).

[0032] The mounting table 18 is a substantially rectangular plate-like portion on which the laser measurement device LM is placed.

[0033] The mounting base 18 is connected to one end of the first wall 14 and the second wall 16 so that its main surface is perpendicular to the main surfaces of the first wall 14 and the second wall 16. In other words, the mounting base 18 is disposed at the end where the first wall 14 and the second wall 16 form a substantially L-shape. The mounting base 18 can also be said to be a portion that extends in a direction intersecting the first wall 14 and the second wall 16.

[0034] In the illustrated example, the mounting table 18 protrudes beyond the first wall 14 and the second wall 16 in a direction perpendicular to each of the two main surfaces of the first wall 14 and in a direction perpendicular to each of the two main surfaces of the second wall 16. Because the mounting table 18 protrudes beyond the first wall 14 and the second wall 16, the mounting table 18 functions as a flange, and when the first jig 12 is placed at the first corner, the mounting table 18 is engaged with the first extension at the first corner. In other words, the mounting table 18 abuts against a surface of the frame 100 that is perpendicular to the two frame side surfaces along which the first wall 14 and the second wall 16 extend.

[0035] The first jig 12 has a first wall 14 and a second wall 16 formed in a substantially L-shape, so that the first wall 14 can be arranged along one side surface that forms a corner of the frame 100, and the second wall 16 can be arranged along the other side surface that forms the corner of the frame 100, as shown in Fig. 10. This allows the first jig 12 to be arranged at the first corner easily and accurately. Furthermore, the presence of the mounting table 18 allows the laser measurement device LM to be arranged at the first corner easily and accurately.

[0036] In the illustrated example, as a preferred embodiment, the upper surface of the mounting table 18 is horizontal when the first jig 12 is placed at the first corner of the frame 100 placed flat. By making the upper surface of the mounting table 18 horizontal, the laser measurement device LM can be stably installed. Furthermore, it becomes possible to reliably irradiate the second jig 30 with laser light from the laser measurement device LM installed on the mounting table 18.

[0037] In the illustrated example, as a preferred embodiment, a convex protrusion 20 is provided on the upper surface of the mounting table 18, i.e., the surface opposite to the first wall 14 and second wall 16. The protrusion 20 has a size and shape that allows it to fit into a recess provided in the case of the laser measurement device LM.

[0038] When viewed from a direction perpendicular to the top surface of the mounting table 18, the protrusion 20 is formed at the intersection of the first wall 14 and the second wall 16.

[0039] Generally, a laser measurement device has a case with a screw hole (corresponding to a recess) for fixing to a tripod or the like, and measurements can be made using the position of the screw hole as the measurement reference point. When placing the laser measurement device on the upper surface of the mounting table 18, the recess provided in the case of the laser measurement device is fitted into the protrusion 20, thereby enabling accurate and easy positioning of the laser measurement device.

[0040] In the illustrated example, as a preferred embodiment, the intersection on the inside of the first wall 14 and the second wall 16 has a groove-shaped first jig-side recess 22 extending along the ridge line where the first wall 14 and the second wall 16 intersect. That is, the first jig-side recess 22 extends in a direction parallel to the main surfaces of the first wall 14 and the second wall 16, respectively, and has a concave cross-sectional shape perpendicular to the main surfaces of the first wall 14 and the second wall 16, respectively.

[0041] The corners of the frame 100 may have raised portions due to weld beads. If raised portions exist at the corners, it may be impossible to position the first wall 14 and second wall 16 of the first jig 12 along the side surface of the frame. In contrast, as shown in Figure 10, by providing a first jig-side recess 22 at the intersection of the first wall 14 and the second wall 16, it becomes possible to position the first jig 12 accurately, avoiding the raised portions due to weld beads that exist at the corners.

[0042] In the illustrated example, as a preferred embodiment, the outer intersection of the first wall 14 and the second wall 16 has a first jig-side recess 24 that extends along the ridge where the first wall 14 and the second wall 16 intersect. In the illustrated example, the outer intersection of the first wall 14 and the second wall 16 is C-chamfered, and the C-chamfered portion corresponds to the first jig-side recess 24.

[0043] As shown in FIG. 11 , when measuring the diagonal dimension of an opening 110 in a frame 100, the first jig 12 is placed at a corner (inner corner) of the opening 110. At this time, the corner of the opening 110 may have a raised portion due to a weld bead. If a raised portion exists at the corner, it may be impossible to position the first wall 14 and the second wall 16 of the first jig 12 along the side surface of the frame. In contrast, by providing a first jig-side recess 24 at the intersection of the first wall 14 and the second wall 16, it becomes possible to position the first jig 12 accurately, avoiding the raised portion due to the weld bead that exists at the corner.

[0044] In the illustrated example, as a preferred embodiment, the inner main surfaces of the first wall 14 and the second wall 16, i.e., the surfaces that come into contact with the side surfaces of the frame when the first jig 12 is installed at the outer corner of the frame 100, are provided with magnet sheets 26. Also, the outer main surfaces of the first wall 14 and the second wall 16, i.e., the surfaces that come into contact with the side surfaces of the frame when the first jig 12 is installed at the inner corner of the opening 110 of the frame 100, are provided with magnet sheets 26.

[0045] Generally, the frame 100 is made of a ferromagnetic material such as steel. Therefore, by providing the magnet sheet 26 to the first jig 12, it becomes possible to fix and stabilize the first jig 12 installed at the corners (external corners) of the frame 100 or the corners (internal corners) of the opening 110 by magnetic force. Furthermore, fixation using the magnet sheet 26 makes it easy to attach and detach.

[0046] There are no limitations on the magnet sheet 26, and various known magnet sheets can be used as appropriate. This also applies to the magnet sheet 46 described below.

[0047] Next, the second jig 30 will be described. FIG. 7 shows a perspective view of the second jig 30 included in the jig unit 10 of the present invention, viewed from above, FIG. 8 shows a top view of the second jig 30, and FIG. 9 shows a bottom view of the second jig 30.

[0048] As shown in FIGS. 7 to 9, the second jig 30 has a third wall 32, a fourth wall 34, a flange portion 36, a second jig-side recess 38, a second jig-side recess 40, and a magnet sheet 46.

[0049] The third wall 32 is a substantially rectangular plate-like portion, and is disposed along one of the two second extension portions that intersect with each other at the second corner when the second jig 30 is installed at the second corner. That is, the third wall 32 is disposed along one of the two frame side surfaces that form the second corner (see FIG. 10).

[0050] The fourth wall 34 is a generally rectangular plate-like portion, and is disposed along the other of the two second extension portions that intersect with each other at the second corner when the second jig 30 is installed at the second corner. That is, the fourth wall 34 is disposed along the other of the two frame side surfaces that form the second corner (see FIG. 10).

[0051] The third wall 32 and the fourth wall 34 are connected at their ends and are arranged so that their main surfaces (largest surfaces) are perpendicular to each other. In other words, the third wall 32 and the fourth wall 34 form a substantially L-shape when viewed in a direction parallel to the main surfaces of the third wall 32 and the fourth wall 34 (a direction parallel to the ridge line where the third wall 32 and the fourth wall 34 intersect).

[0052] The flange 36 is a generally rectangular plate-like portion that extends in a direction intersecting the third wall 32 and the fourth wall 34. In other words, the flange 36 is a plate-like portion whose main surface is perpendicular to the main surfaces of the third wall 32 and the fourth wall 34. The flange 36 is formed at a position that divides the ridge line where the third wall 32 and the fourth wall 34 intersect into two in a direction perpendicular to the main surfaces of the third wall 32 and the fourth wall 34 (i.e., a direction parallel to the ridge line where the third wall 32 and the fourth wall 34 intersect).

[0053] In the illustrated example, the flange 36 protrudes beyond the third wall 32 and the fourth wall 34 in a direction perpendicular to both main surfaces of the third wall 32 and in a direction perpendicular to both main surfaces of the fourth wall 34. Because the flange 36 protrudes beyond the third wall 32 and the fourth wall 34, when the second jig 30 is placed at the second corner, the flange 36 is engaged with the second extension of the second corner. In other words, the flange 36 abuts against a surface of the frame 100 that is perpendicular to the two frame side surfaces along which the third wall 32 and the fourth wall 34 extend.

[0054] 7, the areas below the flanges 36 of the third wall 32 and the fourth wall 34 are contacting portions 42 that contact the second extending portion of the frame 100, and the areas above the flanges 36 of the third wall 32 and the fourth wall 34 are irradiated portions 44 that are irradiated with light from the laser measurement device LM. The irradiated portions 44 include the intersections of the third wall 32 and the fourth wall 34.

[0055] 10 , the second jig 30 has the third wall 32 and the fourth wall 34 formed in a substantially L-shape, and therefore, as shown in FIG. 10 , the area corresponding to the abutting portion 42 of the third wall 32 can be arranged along one side surface that forms a corner of the frame 100, and the area corresponding to the abutting portion 42 of the fourth wall 34 can be arranged along the other side surface that forms the corner of the frame 100. Furthermore, the third wall 32 and the fourth wall 34 have an irradiated portion 44 that is irradiated with light from the laser measurement device LM. Therefore, the irradiated portion 44 that is irradiated with light from the laser measurement device LM can be easily and accurately arranged at the second corner.

[0056] As shown in FIG. 3, when measuring the diagonal dimension of the outer shape of the frame 100, the intersection between the third wall 32 and the fourth wall 34 of the second jig 30 placed at a corner of the frame 100 approximately coincides with the corner (external corner) of the frame 100 in a plan view. Therefore, when measuring the diagonal dimension by irradiating the irradiated portion 44 with light from the laser measurement device LM placed on the first jig 12, the light is irradiated onto the intersection between the third wall 32 and the fourth wall 34 (see symbol P in FIG. 7). This allows the diagonal dimension to be measured with high accuracy. The distance measured by irradiating the intersection is longer than when irradiating other parts of the third wall 32 or the fourth wall 34 with light. Therefore, as shown in FIG. 3, the direction of the laser measurement device LM can be appropriately changed to measure the distance, and the longest distance can be used as the diagonal dimension.

[0057] In the illustrated example, as a preferred embodiment, the abutting portion 42 has a groove-shaped second jig-side recess 38 at the inner intersection of the third wall 32 and the fourth wall 34, extending along the ridge where the third wall 32 and the fourth wall 34 intersect. That is, the second jig-side recess 38 extends in a direction parallel to the main surfaces of the third wall 32 and the fourth wall 34, respectively, and has a concave cross-sectional shape perpendicular to the main surfaces of the third wall 32 and the fourth wall 34, respectively.

[0058] The corners of the frame 100 may have raised portions due to weld beads. If raised portions exist at the corners, it may be impossible to position the third wall 32 and the fourth wall 34 of the second jig 30 along the side surface of the frame. In contrast, as shown in Figure 10, by providing a second jig-side recess 38 at the intersection of the third wall 32 and the fourth wall 34, it becomes possible to position the second jig 30 accurately, avoiding the raised portions due to weld beads that exist at the corners.

[0059] In the illustrated example, as a preferred embodiment, the outer intersection of the third wall 32 and the fourth wall 34 of the abutting portion 42 has a second jig-side recess 40 extending along the ridge line where the third wall 32 and the fourth wall 34 intersect. In the illustrated example, the outer intersection of the third wall 32 and the fourth wall 34 is C-chamfered, and the C-chamfered portion corresponds to the second jig-side recess 40.

[0060] As shown in Fig. 11, when measuring the diagonal dimension of an opening 110 of a frame 100, the second jig 30 is placed at a corner (inner corner) of the opening 110. At this time, the corner of the opening 110 may have a raised portion due to a weld bead. If a raised portion exists at the corner, it may be impossible to position the third wall 32 and the fourth wall 34 of the second jig 30 along the side surface of the frame. In contrast, by providing a second jig-side recess 40 at the intersection of the third wall 32 and the fourth wall 34, it becomes possible to position the second jig 30 accurately, avoiding the raised portion due to the weld bead that exists at the corner.

[0061] In the illustrated example, as a preferred embodiment, the inner main surfaces of the third wall 32 and the fourth wall 34, i.e., the surfaces that come into contact with the side surfaces of the frame when the second jig 30 is installed at an outer corner of the frame 100, are provided with magnet sheets 46. In addition, the outer main surfaces of the third wall 32 and the fourth wall 34, i.e., the surfaces that come into contact with the side surfaces of the frame when the second jig 30 is installed at an inner corner of the opening 110 of the frame 100, are provided with magnet sheets 46.

[0062] Generally, the frame 100 is made of a ferromagnetic material such as steel. Therefore, by providing the magnetic sheet 46 to the second jig 30, it becomes possible to stabilize the second jig 30 installed at the corner (external corner) of the frame 100 or the corner (internal corner) of the opening 110. Furthermore, fixation using the magnetic sheet 46 makes it easy to attach and detach.

[0063] In a preferred embodiment, at least the inner surfaces of the third wall 32 and the fourth wall 34 of the irradiated portion 44 are white.

[0064] By making the inner surfaces of the third wall 32 and the fourth wall 34 of the irradiated portion 44 white, the irradiated light is more easily reflected, and measurement can be performed with higher accuracy.

[0065] There are no particular restrictions on the materials from which the first jig 12 and the second jig 30 are made, but they are preferably resin molded products made from PLA (polylactic acid) resin, ABS (acrylonitrile butadiene styrene) resin, etc. This allows the first jig 12 and the second jig 30 to be manufactured easily and inexpensively.

[0066] When the jig unit 10 of the present invention having the first jig 12 and second jig 30 described above is used to measure the diagonal dimension between opposing corners (external corners) of the outer shape of the frame 100, as shown in Figure 10, the first jig 12 is placed at one of the opposing corners (first corner), and the first wall 14 and second wall 16 are placed along the outer side surfaces of the two first extension portions that intersect with each other at the first corner, and the second jig 30 is placed at the other opposing corner (second corner), and the third wall 32 and fourth wall 34 are placed along the outer side surfaces of the two second extension portions that intersect with each other at the second corner, and a laser measuring device LM is placed on the mounting table 18 of the first jig 12 to irradiate laser light onto the second jig 30 to measure the diagonal dimension.

[0067] Furthermore, when measuring the diagonal dimension between opposing corners (inner corners) of an opening 110 in the frame 100, as shown in FIG. 11, a first jig 12 is placed at one of the opposing corners (first corner), with the first wall 14 and the second wall 16 each positioned along the inner side surfaces of the two first extension portions that intersect with each other at the first corner, a second jig 30 is placed at the other opposing corner (second corner), with the third wall 32 and the fourth wall 34 each positioned along the inner side surfaces of the two second extension portions that intersect with each other at the second corner, and a laser measuring device LM is placed on the mounting table 18 of the first jig 12 to irradiate laser light onto the second jig 30 and measure the diagonal dimension.

[0068] The jig unit 10 of the present invention allows the first jig 12 and the second jig 30 to be installed at the corners of the frame easily and accurately. Therefore, even a single worker can easily and accurately position the laser measurement device. This allows for highly accurate measurements, and also eliminates the need for redoing, allowing for efficient measurements.

[0069] Furthermore, because the measurement is performed using the laser measurement device LM, it is possible to reduce measurement variability even when the material at the diagonal measurement site is warped, the diagonal dimension is long, or the measurement is performed outdoors and is affected by wind. It is also possible to reduce measurement variability between operators. Furthermore, it is easier to perform measurements than convex measurements even when multiple frames are stacked or when there is no space for people to pass around on all four sides of the frames.

[0070] <<Other embodiments>> While one embodiment of the jig unit of the present invention has been described above, the above embodiment is merely an example for facilitating understanding of the present invention and is not intended to limit the present invention. In other words, the present invention can be modified and improved without departing from the spirit and scope of the present invention. Furthermore, the present invention naturally includes equivalents thereof.

[0071] In the above embodiment, the first wall 14 and the second wall 16 in the first jig 12 are arranged so that their main surfaces are perpendicular to each other, but this is not limited to this, and the angle formed by the main surfaces of the first wall 14 and the second wall 16 may be set to match the angle of the corner of the frame to be measured.

[0072] Similarly, in the above embodiment, the third wall 32 and the fourth wall 34 in the second jig 30 are arranged so that their main surfaces are perpendicular to each other, but this is not limited to this, and the angle formed by the main surfaces of the third wall 32 and the fourth wall 34 may be set to match the angle of the corner of the frame to be measured.

[0073] In the above embodiment, the main surfaces of the walls (first wall 14 to fourth wall 34) of the first jig 12 and the second jig 30 are generally rectangular, but the shape is not limited to this as long as they can be arranged along the extensions of the frames. For example, the main surfaces of the walls may have other shapes, such as polygons such as triangles.

[0074] Furthermore, in the above embodiment, the first jig 12 is configured to have the protrusion 20 on the top surface of the mounting table, which fits into the recess provided in the case of the laser measurement device LM, but it may be configured without the protrusion 20. However, as described above, the configuration with the protrusion 20 is preferable in that it allows the positioning of the laser measurement device LM to be performed with higher precision.

[0075] In the above embodiment, the upper surface of the mounting table 18 in the first jig 12 is a horizontal plane, but this is not limiting. However, as described above, a configuration in which the upper surface of the mounting table 18 is a horizontal plane is preferable in that the laser measuring device LM can be stably installed and the laser light from the laser measuring device LM installed on the mounting table 18 can be reliably irradiated onto the second jig 30.

[0076] In the above embodiment, the mounting table 18 is configured to protrude beyond the first wall 14 and the second wall 16 in the direction perpendicular to each of the main surfaces of the first wall 14 and in the direction perpendicular to each of the main surfaces of the second wall 16, and to function as a flange, but this is not limiting, and the mounting table 18 may not function as a flange. However, as described above, a configuration in which the mounting table 18 functions as a flange is preferable because it allows the first jig 12 to be easily and reliably installed at a corner.

[0077] Furthermore, in the above embodiment, the shape of the main surface of the mounting table 18 is approximately rectangular, but this is not limited to this as long as it is possible to mount the laser measurement device LM thereon, and it may be of other shapes, such as a polygonal shape such as a triangle.

[0078] In the above embodiment, the first jig-side recess (22, 24) or the second jig-side recess (38, 40) is provided at the intersection of the first wall 14 and the second wall 16 of the first jig 12 and the intersection of the third wall 32 and the fourth wall 34 of the abutting portion 42 of the second jig 30, but this is not limiting. A first jig-side recess or a second jig-side recess may be provided at at least one of the inner and outer intersections of the first wall 14 and the second wall 16 of the first jig 12 and the inner and outer intersections of the third wall 32 and the fourth wall 34 of the abutting portion 42 of the second jig 30. Alternatively, the first jig 12 and the second jig 30 may not have a first jig-side recess or a second jig-side recess. However, as described above, a configuration having a first jig side recess or a second jig side recess is preferable in that the first jig side recess or the second jig side recess makes it possible to position the first jig 12 and the second jig 30 while avoiding the raised portions caused by the weld beads at the corners of the frame.

[0079] In the above embodiment, the first jig 12 and the second jig 30 are configured to have magnet sheets (26, 46) on both main surfaces of the walls (first wall to fourth wall), but this is not limited thereto. A magnet sheet may be provided on at least one of the main surfaces of the walls (first wall to fourth wall). For example, the first jig 12 may have a magnet sheet only on the first wall 14, or only on the second wall 16. Alternatively, a magnet sheet may be provided on one main surface of the first wall 14 and one main surface of the second wall 16. Similarly, the second jig 30 may have a magnet sheet only on the third wall 32, or only on the fourth wall 34. Alternatively, a magnet sheet may be provided on one main surface of the third wall 32 and one main surface of the fourth wall 34. Alternatively, the walls of the first jig 12 (the first wall 14 and / or the second wall 16) may have magnetic sheets, while the second jig 30 may not have magnetic sheets. Alternatively, both the first jig 12 and the second jig 30 may not have magnetic sheets. However, as described above, a configuration having magnetic sheets is preferable because it makes it possible to stabilize the first jig 12 and / or the second jig 30 installed at the corners of the frame.

[0080] Furthermore, in the above embodiment, the second jig 30 has a flange 36 that extends in a direction intersecting the third wall 32 and the fourth wall 34 between the contact portion 42 and the irradiated portion 44, and the flange 36 is engaged with the two second extension portions so that the second jig 30 is disposed at the second corner portion, but this is not limiting, and the second jig 30 may have a configuration that does not have the flange 36. However, as described above, a configuration that has the flange 36 is preferable in that it enables the second jig 30 to be easily and reliably disposed at the second corner portion.

[0081] In the above embodiment, the second jig 30 is configured such that at least the inner surfaces of the third wall 32 and the fourth wall 34 of the irradiated portion 44 are white, but this is not limited to this. The second jig 30 may have the entire third wall 32 and / or the entire fourth wall 34 white, or the entire second jig 30 may be white. [Explanation of symbols]

[0082] 10 Jig unit 12 First jig 14 1st wall 16 Second wall 18 Mounting table 20 Protrusion 22, 24 First jig side recess 26, 46 magnetic sheets 30 Second jig 32 Third wall 34 4th wall 36 Tsuba 38, 40 Second jig side recess 42 Contact part 44 Irradiated area 100 frames 102~108, 112~118 Corner 110 Opening c1, c2, h1, h2 diagonal dimensions LM laser measurement device P Laser beam irradiation point

Claims

1. A jig unit used when measuring a distance between a first corner of a frame constituting a skeleton of a building and a second corner of the frame that is located at a position opposite to the first corner, using a laser measurement device, a first jig disposed at the first corner portion and on which the laser measurement device is placed; a second jig that is disposed at the second corner portion and that is irradiated with light from the laser measurement device; The first jig is a first wall disposed along one of the two first extension portions that intersect with each other at the first corner portion; a second wall disposed along the other of the two first extension portions; a mounting table supported by the first wall and the second wall and on which the laser measurement device is placed, The second jig is a third wall disposed along one of the two second extension portions that intersect with each other at the second corner portion; a fourth wall disposed along the other of the two second extension portions, wherein the light is irradiated onto an intersection portion between the third wall and the fourth wall, The jig unit has a first jig-side recess at an intersection between the first wall and the second wall of the first jig.

2. A jig unit used when measuring the distance between a first corner of a frame that constitutes the skeleton of a building and a second corner of the frame that is located opposite the first corner, using a laser measuring device, a first jig disposed at the first corner portion and on which the laser measurement device is placed; a second jig that is disposed at the second corner portion and that is irradiated with light from the laser measurement device; The first jig is a first wall disposed along one of the two first extension portions that intersect with each other at the first corner portion; a second wall disposed along the other of the two first extension portions; a mounting table supported by the first wall and the second wall and on which the laser measurement device is placed, The second jig is a third wall disposed along one of the two second extension portions that intersect with each other at the second corner portion; a fourth wall disposed along the other of the two second extension portions, wherein the light is irradiated onto an intersection portion between the third wall and the fourth wall, each of the third wall and the fourth wall of the second jig includes a contact portion that contacts the second extension portion and an irradiated portion that is irradiated with light from the laser measurement device; The jig unit has a second jig-side recess at an intersection of the third wall and the fourth wall of the abutment portion.

3. 3. The jig unit according to claim 1, wherein a protrusion that fits into a recess provided in a case of the laser measurement device is provided on an upper surface of the mounting table of the first jig.

4. 4. The jig unit according to claim 1, wherein an upper surface of the mounting table is a horizontal surface when the first jig is disposed at the first corner portion.

5. The jig unit according to any one of claims 1 to 4, wherein the mounting base of the first jig is engaged with the two first extension portions, and the first jig is positioned at the first corner portion.

6. The jig unit according to any one of claims 2 to 5, further comprising a first jig-side recess at an intersection between the first wall and the second wall of the first jig.

7. The jig unit according to any one of claims 1 to 6, wherein a sheet-shaped magnet is provided on a main surface of at least one of the first wall and the second wall of the first jig.

8. A jig unit as described in any one of claims 1, 3 to 7, wherein each of the third wall and the fourth wall of the second jig has an abutment portion that abuts against the second extension portion and an irradiated portion that is irradiated with light from the laser measuring device.

9. a flange portion extending in a direction intersecting the third wall and the fourth wall is provided between the contact portion and the irradiated portion, The jig unit according to claim 2 or 8, wherein the flange portion is engaged with the two second extension portions, and the second jig is disposed at the second corner portion.

10. The jig unit according to claim 8 or 9, further comprising a second jig-side recess at an intersection between the third wall and the fourth wall of the abutting portion.

11. The jig unit according to any one of claims 8 to 10, wherein the irradiated portion is white.

12. The jig unit according to any one of claims 1 to 11, wherein a sheet-shaped magnet is provided on a main surface of at least one of the third wall and the fourth wall of the second jig.

13. The jig unit according to any one of claims 1 to 12, wherein the first jig and the second jig are resin molded products.

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