Alignment jig

Abstract

To provide an alignment jig capable of precisely executing alignment of building material hole sections.SOLUTION: An alignment jig comprises: a jig body that includes an extension portion extending in a specified direction, a first protruding portion protruding from the extension portion, a second protruding portion protruding from the extension portion so that the second protruding portion is aligned with the first protruding portion in the specified direction with a plurality of building materials in between, and a first screw hole provided in the first protruding portion; a first bolt that is screwed into the first screw hole; a first insertion rod that is connected to the first bolt and extends in the specified direction and is inserted into a building material hole from one side in the specified direction; and a second insertion rod that is connected to the second protruding portion and extends in the specified direction and is inserted into the building material hole from the other side in the specified direction. The first insertion rod includes a first inclined surface that is inclined with respect to the specified direction, and the second insertion rod includes a second inclined surface that faces and contacts the first inclined surface. When the first insertion rod moves in the specified direction by rotation of the first bolt, the first inclined surface slides against the second inclined surface.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to an alignment jig that aligns building material holes provided in each of a plurality of building materials that constitute a building structure. [Background technology]

[0002] In order to bolt together multiple building materials that make up a steel frame or the like at a construction site, it is necessary to align the holes in the building materials in advance. Conventionally, alignment was achieved by inserting ball cores into multiple misaligned building material holes and driving the ball cores into them using a tool. However, because the noise generated when driving the ball cores can have a negative impact on the neighborhood, the above work had to be avoided during certain times of the day, such as at night, which resulted in a longer construction period.

[0003] In order to reduce noise during alignment work, Patent Document 1 proposes an alignment jig that includes a pair of inclined surface sliding members arranged coaxially and a rod-shaped member inserted into each of the pair of inclined surface sliding members. When one of the pair of inclined surface sliding members inserted into the building material hole is pressed against the other, the pair of inclined surface sliding members slide against each other to slide the building material hole, thereby performing alignment. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-031897 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the above-mentioned alignment jig, since the rod-shaped member is inserted into each of the pair of inclined surface sliding members, each inclined surface sliding member can only slide the building material hole portion to a position where it abuts against the rod-shaped member, so there is a risk that the alignment of the multiple building material holes cannot be performed with high precision.

[0006] An object of the present disclosure is to provide an alignment jig that can accurately align holes in building materials. [Means for solving the problem]

[0007] 1) An alignment jig according to at least one embodiment of the present disclosure includes: An alignment jig for aligning a building material hole provided in each of a plurality of building materials constituting a building, a jig body including an extension portion extending in a specified direction, a first protruding portion protruding from the extension portion, a second protruding portion protruding from the extension portion so as to be aligned with the first protruding portion in the specified direction with the plurality of building materials therebetween, and a first screw hole portion provided in the first protruding portion; A first bolt that is screwed into the first screw hole; A first insertion rod that is connected to the first bolt, extends in the specified direction, and is inserted into the building material hole from one side in the specified direction; A second insertion rod that is connected to the second protrusion, extends in the specified direction, and is inserted into the building material hole from the other side of the specified direction; Equipped with the first insertion rod includes a first inclined surface inclined with respect to the specified direction, the second insertion rod includes a second inclined surface that faces and abuts against the first inclined surface, When the first insertion rod moves in the specified direction due to rotation of the first bolt, the first inclined surface is configured to slide against the second inclined surface.

[0008] According to the above configuration 1), when the first bolt is tightened while the first insertion rod is sandwiched between the second inclined surface and one of the building material holes, the first insertion rod slides the first inclined surface against the second inclined surface and moves toward the other side in the specified direction while pushing aside the building material hole. This causes the building material hole to slide, so that the building material hole can be aligned. The extent to which the first insertion rod slides the building material hole can be freely adjusted by the tightening amount of the first bolt, so that the sliding amount of the building material hole can also be freely adjusted. This allows the building material hole to be aligned with high precision.

[0009] 2) In some embodiments, the alignment jig described in 1) above is The first bolt includes a first shaft portion extending in the specified direction, A first shaft end surface, which is an end surface of the first shaft portion on the first insertion rod side, has a convex or concave curved shape, A first insertion rod end face, which is an end face of the first insertion rod on the first bolt side, has a concave or convex curved shape that faces and abuts against the first shaft end face.

[0010] According to the configuration of 2), when the first bolt is fastened, the first shaft end face and the first insertion rod end face slide against each other, so that the first insertion rod is unlikely to rotate together. As a result, only the linear force of the rotational force and linear force of the first bolt is easily transmitted to the first insertion rod, and the first insertion rod can move without changing its rotational position and push away the building material hole. Therefore, when aligning the building material hole, it is possible to prevent the building material hole from rotating. Even if a force is generated that tries to make the axis of the first insertion rod eccentric with respect to the axis of the first bolt when sliding the building material hole, the first insertion rod end face slides against the first shaft end face, so that the first insertion rod can tilt with respect to the specified direction, and the above force acting on the first insertion rod can be released. This reduces the load on the first insertion rod, and prevents damage to the first insertion rod.

[0011] 3) In some embodiments, the alignment jig described in 2) above, A first connecting member that connects a first bolt and the first insertion rod so that the first shaft end surface and the first insertion rod end surface can slide relative to each other, The first connecting member is releasably attached to the first bolt and the first insertion rod.

[0012] According to the above configuration 3), before starting the alignment work, the first insertion rod can be connected to the first bolt screwed into the first screw hole portion by using the first connecting member. This makes it unnecessary to insert the first bolt connected to the first insertion rod into the first screw hole portion, and therefore makes it easier to perform the alignment work.

[0013] 4) In some embodiments, the alignment jig according to 1) or 3) above, The first insertion rod further includes a first curved surface that is convex toward a side opposite to the first inclined surface when viewed along the specified direction.

[0014] According to the above configuration 4), the first curved surface can come into surface contact with the hole portion of the building material, so that the force for sliding is easily transmitted to the hole portion of the building material, and the alignment work can be performed smoothly.

[0015] 5) In some embodiments, the alignment jig described in 4) above, The first insertion rod further includes a first connecting surface connecting the first curved surface and the first inclined surface, When viewed along the specified direction, the first connection surface is located inside a first virtual circle whose radius, centered on the axis of the first insertion rod, is the same as the radius of curvature of the first curved surface.

[0016] According to the above configuration 5), since the first insertion rod can be made thinner by the amount that the first connection surface is located inside the first imaginary circle, the first insertion rod does not get caught in the building material holes when being inserted into the misaligned building material holes, and therefore the work of aligning the building material holes can be performed smoothly.

[0017] 6) In some embodiments, the alignment jig according to any one of 1) to 5) above, The first inclined surface has a plurality of first vertical grooves formed therein and extending along the specified direction.

[0018] According to the above configuration 6), the resistance caused by the unevenness of the groove between the first and second inclined surfaces can suppress the slippage, so that the first inclined surface can be prevented from slipping in the width direction relative to the second inclined surface, and the force transmitted to the hole in the building material for sliding can be prevented from escaping. This allows the positioning work of the hole in the building material to be performed smoothly.

[0019] 7) In some embodiments, the alignment jig according to any one of 1) to 6) above, The jig body further includes a second screw hole portion provided in the second protrusion, The alignment jig further includes a second bolt screwed into the second screw hole portion, The second insertion rod is connected to the second bolt, When the second insertion rod moves in the specified direction due to rotation of the second bolt, the second inclined surface is configured to slide against the first inclined surface.

[0020] According to the configuration of 7) above, when the second bolt is tightened, the second insertion rod can slide the second inclined surface against the first inclined surface and move to one side in the specified direction while pushing aside the building material hole portion. The extent to which the second insertion rod slides in the building material hole portion can be freely adjusted by the tightening amount of the second bolt, so the sliding amount of the building material hole portion can also be freely adjusted. Therefore, the positioning of the building material hole portion can be performed with high precision.

[0021] 8) In some embodiments, the alignment jig described in 7) above, The second bolt includes a second shaft portion extending in the specified direction, A second shaft end surface, which is an end surface of the second shaft portion on the second insertion rod side, has a convex or concave curved shape, A second insertion rod end face, which is an end face of the second insertion rod on the second bolt side, has a concave or convex curved shape that faces and abuts against the second shaft end face.

[0022] According to the configuration 8) above, the same technical advantages as those in 2) above can be obtained.

[0023] 9) In some embodiments, the alignment jig described in 8) above, A second connecting member that connects a second bolt and the second insertion rod so that the second shaft end surface and the second insertion rod end surface can slide relative to each other, The second connecting member is releasably attached to the second bolt and the second insertion rod.

[0024] According to the configuration 9) above, the same technical advantages as those in 3) above can be obtained.

[0025] 10) In some embodiments, the alignment jig according to any one of 7) to 9) above, The second insertion rod further includes a second curved surface that is convex toward the side opposite to the second inclined surface when viewed along the specified direction.

[0026] According to the configuration 10) above, the same technical advantages as those in 4) above can be obtained.

[0027] 11) In some embodiments, the alignment jig described in 10) above, The second insertion rod further includes a second connecting surface connecting the second curved surface and the second inclined surface, When viewed along the specified direction, the second connection surface is located inside a second imaginary circle whose radius, centered on the axis of the second insertion rod, is the same as the radius of curvature of the second curved surface.

[0028] According to the configuration 11) above, the same technical advantages as those in 5) above can be obtained.

[0029] 12) In some embodiments, the alignment jig according to any one of 7) to 11) above, The second inclined surface has a plurality of second longitudinal grooves formed therein and extending along the specified direction.

[0030] According to the configuration 12) above, the same technical advantages as those in 6) above can be obtained. Effect of the Invention

[0031] According to the present disclosure, it is possible to provide an alignment jig that can accurately align a hole in a building material. [Brief description of the drawings]

[0032] [Figure 1] FIG. 1 is a schematic overall view of an alignment jig 1. [Figure 2A] 1 is a schematic diagram of a hole 8 in a building material that has been displaced. [Figure 2B] FIG. 13 is a schematic diagram of another misaligned building material hole 8. [Diagram 3] 1 is a schematic diagram of a building material hole 8 after alignment. [Figure 4] 2 is a schematic enlarged view of a first bolt 21 and a first insertion rod 110. FIG. [Diagram 5] 1 is a schematic diagram showing the state when the first shaft end surface 25 and the first insertion rod end surface 111 start to slide against each other. [Figure 6] 2 is a schematic diagram of a first insertion rod 110. FIG. [Figure 7] 7 is a schematic cross-sectional view of the first insertion rod 110 taken along the line AA in FIG. 6. [Figure 8] 7 is a schematic cross-sectional view of the first insertion rod 110 taken along the line BB in FIG. 6. [Figure 9] 13 is a schematic diagram of a first insertion rod 110 according to another embodiment. FIG. [Figure 10] 2 is a schematic enlarged view of a second bolt 22 and a second insertion rod 220. FIG. [Figure 11] 2 is a schematic diagram of a second insertion rod 220. FIG. [Figure 12]12 is a schematic cross-sectional view of the second insertion rod 220 taken along the line AA in FIG. 11. FIG. [Figure 13] 13 is a schematic diagram of a second insertion rod 220 according to another embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0033] Hereinafter, some embodiments of the present disclosure will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of components described as the embodiments or shown in the drawings are merely illustrative examples and are not intended to limit the scope of the present disclosure. For example, expressions expressing relative or absolute configuration, such as "in a certain direction," "along a certain direction," "parallel," "orthogonal," "center," "concentric," or "coaxial," not only strictly express such a configuration, but also express a state in which there is a relative displacement with a tolerance or an angle or distance to the extent that the same function is obtained. For example, expressions indicating that things are in an equal state, such as "identical," "equal," and "homogeneous," not only indicate a state of strict equality, but also indicate a state in which there is a tolerance or a difference to the extent that the same function is obtained. For example, expressions describing shapes such as a rectangular shape or a cylindrical shape do not only refer to rectangular shapes, cylindrical shapes, etc. in the strict geometric sense, but also refer to shapes that include uneven portions, chamfered portions, etc., to the extent that the same effect is obtained. On the other hand, the expressions "comprise", "include", or "have" a certain element are not exclusive expressions excluding the presence of other elements. In addition, the same components are denoted by the same reference numerals and the description thereof may be omitted.

[0034] <Outline of Alignment Jig 1> In the example of FIG. 1, a building material 9A and a pair of building materials 9B arranged to sandwich the building material 9A are arranged as the building material 9 for which hole alignment is to be performed. As an example, the building material 9A is a flange portion of an H-shaped steel that constitutes a frame structure. The pair of building materials 9B are splice plates, and can slide along the building material 9A before being bolted to the building material 9A. The alignment jig 1 of this example is used to align the building material hole portion 8A of the building material 9A with the building material hole portion 8B of the building material 9B. Hereinafter, the building materials 9A and 9B may be collectively referred to simply as "building material 9", and the building material holes 8A and 8B may be collectively referred to simply as "building material hole portion 8".

[0035] The alignment jig 1 includes an extension 15 extending in a specified direction, a first protruding portion 11 protruding from the extension 15, a second protruding portion 12 arranged to be aligned with the first protruding portion 11 in the specified direction with the building material 9 therebetween, a first screw hole portion 13 provided in the first protruding portion 11, and a second screw hole portion 14 provided in the second protruding portion 12. When the alignment jig 1 is in a state for use, the specified direction is a direction parallel to the center line of the building material hole portion 8. The first screw hole portion 13 and the second screw hole portion 14 are screw holes whose axial direction is the specified direction, and are arranged so as to be coaxial with each other.

[0036] The alignment jig 1 further includes a first bolt 21, a second bolt 22, a first insertion rod 110, and a second insertion rod 220, all of which are coaxially arranged and extend in a specified direction. A first shaft portion 23 which is the shaft portion of the first bolt 21 is screwed into the first screw hole portion 13 and protrudes toward the second screw hole portion 14. Similarly, a second shaft portion 24 which is the shaft portion of the second bolt 22 is screwed into the second screw hole portion 14 and protrudes toward the first screw hole portion 13.

[0037] The first insertion rod 110 is connected to the first shaft portion 23, and is inserted into the building material hole 8 from one side in the specified direction. The second insertion rod 220 is connected to the second shaft portion 24, and is inserted into the building material hole 8 from the other side in the specified direction. The first insertion rod 110 and the second insertion rod 220, which are arranged coaxially with each other, have symmetrical shapes in the specified direction, and are both solid shaft members.

[0038] The first insertion rod 110 includes a first inclined surface 31 (see FIG. 2A) inclined with respect to a specified direction, and the second insertion rod 220 includes a second inclined surface 32 that faces and abuts against the first inclined surface 31. Due to the provision of the first inclined surface 31 and the second inclined surface 32, the first insertion rod 110 and the second insertion rod 220 have a shape that becomes sharper toward the tip side. The longitudinal directions of the first inclined surface 31 and the second inclined surface 32 are both along the specified direction, and the short side direction (width direction) is a direction perpendicular to the longitudinal direction.

[0039] In this embodiment, when the first insertion rod 110 moves in a specified direction by the rotation of the first bolt 21, the first inclined surface 31 slides against the second inclined surface 32. For example, as shown in FIG. 2A, an operator inserts the first insertion rod 110 and the second insertion rod 220 into the building material hole portions 8 that are misaligned with each other. At this time, it is assumed that the first insertion rod 110 is sandwiched between the second inclined surface 32 and the two building material hole portions 8B. When the operator tightens the first bolt 21, the first insertion rod 110 moves to the other side in the specified direction while sliding the first inclined surface 31 against the second inclined surface 32 (arrow D). At this time, at least the tip of the first insertion rod 110 is displaced in the direction of the arrow A so as to widen the hole due to the reaction force received from the second inclined surface 32 of the second insertion rod 220. At the same time, as the first bolt 21 is tightened, the first insertion rod 110 slides on the second inclined surface 32 to the other side in the specified direction. As a result, the first insertion rod 110 pushes aside the pair of building materials 9B, causing the building material hole 8B to slide (arrows R1 and R2). If tightening of the first bolt 21 is stopped when the two building material holes 8B become coaxial with the building material hole 8A, the alignment of the building material hole 8 is completed as shown in FIG.

[0040] Similarly, when the second insertion rod 220 moves in the specified direction by the rotation of the second bolt 22, the second inclined surface 32 is configured to slide against the first inclined surface 31. For example, as shown in FIG. 2B, an operator inserts the first insertion rod 110 and the second insertion rod 220 into the building material hole portions 8 that are misaligned with each other. At this time, it is assumed that the second insertion rod 220 is sandwiched between the first inclined surface 31 and the two building material holes 8B. When an operator tightens the second bolt 22, the second insertion rod 220 moves to the other side in the specified direction while sliding the second inclined surface 32 against the first inclined surface 31 (arrow U). At this time, at least the tip of the second insertion rod 220 is displaced so as to incline toward the direction of arrow B due to the reaction force received from the first inclined surface 31 of the first insertion rod 110. At the same time, the second insertion rod 220 slides on the first inclined surface 31 to one side in the specified direction as the second bolt 22 is tightened. As a result, the second insertion rod 220 pushes aside the pair of building materials 9B, causing the building material hole 8B to slide (arrows L1 and L2). When the two building material holes 8B become coaxial with the building material hole 8A, the tightening of the second bolt 22 is stopped, and the alignment of the building material hole 8 is completed as shown in FIG.

[0041] In this manner, in this embodiment, since the driving of a ball core is not required when aligning the building material hole 8, the alignment work can be made quieter. Furthermore, the degree to which the building material hole 8B slides can be freely adjusted by adjusting the tightening amount of the first bolt 21 and the tightening amount of the second bolt 22. This allows the sliding amount of the building material hole 8B to be freely adjusted, so that the alignment of the building material holes 8A and 8B can be performed with high precision.

[0042] <Details of First Bolt 21 and First Insertion Rod 110> As shown in FIG. 4, the first shaft portion 23 of the first bolt 21 includes a threaded shaft portion 231 on which a screw thread is formed, and an abutment shaft portion 232 connected to the tip of the threaded shaft portion 231 and abutting against the first insertion rod 110. The abutment shaft portion 232 has a smaller diameter than the threaded shaft portion 231. A ring groove 232c is formed in a portion of the abutment shaft portion 232 on the threaded shaft portion 231 side. The ring groove 232c is formed over the entire length in the circumferential direction centered on the axis of the first bolt 21. A first shaft end surface 25, which is the end surface of the abutment shaft portion 232 on the first insertion rod 110 side, has a curved shape recessed toward the first screw hole portion 13.

[0043] On the other hand, the first insertion rod end face 111, which is the end face of the first insertion rod 110 on the first bolt 21 side, has a curved shape that faces and abuts against the first axial end face 25 of the first bolt 21. The first insertion rod end face 111 illustrated in FIG. 4 is curved convexly toward the first screw hole portion 13. Furthermore, a ring groove 110c is formed in the portion of the first insertion rod 110 on the first bolt 21 side. The depth of the ring groove 110c is the same as the depth of the ring groove 232c of the first bolt 21. In addition, the bottom surface of the ring groove 110c and the bottom surface of the ring groove 232c have the same outer diameter. The depth of the ring groove 110c is the radial dimension of the ring groove 110c based on the axis of the first insertion rod 110, and the depth of the ring groove 232c is the radial dimension of the ring groove 232c based on the axis of the first bolt 21.

[0044] The alignment jig 1 illustrated in Fig. 4 further includes a first connecting member 41. The first connecting member 41 connects the first bolt 21 and the first insertion rod 110 such that the first shaft end surface 25 and the first insertion rod end surface 111 are slidable relative to each other. The first connecting member 41 is releasably attached to the first bolt 21 and the first insertion rod 110, and more specifically, is releasably attached to the ring grooves 232c, 110c. In this example, the first connecting member 41 can be attached from the outside in the radial direction based on the first insertion rod 110 and the first bolt 21.

[0045] The technical advantages obtained by adopting the above-mentioned configuration will be described with reference to Figs. 2A, 4, and 5. When the first bolt 21 is fastened, the first shaft end surface 25 and the first insertion rod end surface 111 slide against each other, so that the first insertion rod 110 is unlikely to rotate with the first bolt 21 even if the first bolt 21 rotates. As a result, only the linear force of the rotational force and linear force of the first bolt 21 is easily transmitted to the first insertion rod 110, and the first insertion rod 110 can move in a specified direction without changing the rotational position and push away the building material hole 8. Therefore, it is possible to prevent the building material 9B from rotating around the first insertion rod 110 when performing alignment.

[0046] 2A moves in a specified direction while pushing aside the building material hole 8 (arrow D), a force is generated that tends to offset the axis of the first insertion rod 110 with respect to the axis of the first bolt 21. As one example, a reaction force that causes an inclination from the second inclined surface 32 acts on the tip of the first insertion rod 110 as described above. As another example, if the force in the specified direction by the first bolt 21 is applied deviated from the center of the first insertion rod 110, the first insertion rod 110 may be subjected to a bending force due to the deviation, causing it to buckle.

[0047] In this regard, in this embodiment, as shown in Fig. 5, the first insertion rod end surface 111 slides against the first shaft end surface 25, and the first insertion rod 110 can tilt with respect to the specified direction (this tilt occurs in the first insertion rod 110 over the specified direction). This allows the above-mentioned force acting on the first insertion rod 110 to be released, thereby reducing the load on the first insertion rod 110 and preventing damage to the first insertion rod 110.

[0048] The first shaft end surface 25 according to another embodiment may have a curved shape that is convex in the direction away from the first screw hole portion 13. In this case, the first insertion rod end surface 111 has a curved shape that is concave in the direction away from the first screw hole portion 13, but the first shaft end surface 25 and the first insertion rod end surface 111 can still slide against each other, and both of the above-mentioned advantages of being able to suppress rotation of the first insertion rod 110 and being able to release the reaction force generated by the first insertion rod 110 can be obtained.

[0049] Furthermore, by providing the first connecting member 41 which is detachable from the first bolt 21 and the first insertion rod 110, the first bolt 21 screwed into the first screw hole portion 13 can be connected to the first insertion rod 110 using the first connecting member 41 before starting the alignment work of the building material hole portion 8. In other words, since it is possible to eliminate the need to insert the first bolt 21 connected to the first insertion rod 110 into the first screw hole portion 13, the alignment work can be performed more easily.

[0050] In addition, the first insertion rod 110 and the second insertion rod 220 can be inserted into the building material hole 8 while being separated from the first bolt 21 and the second bolt 22, respectively, and then the first insertion rod 110 and the first bolt 21 can be attached, and the second insertion rod 220 and the second bolt 22 can be attached. Therefore, the amount of rotation of the first bolt 21 and the second bolt 22 when aligning the building material hole 8 (i.e., the amount of movement of the first insertion rod 110 and the second insertion rod 220 in the specified direction) can be reduced. Therefore, the length in the specified direction of the movable parts constituting the alignment jig 1, including the first insertion rod 110 and the second insertion rod 220, can be shortened, and the alignment jig 1 can be made smaller in size.

[0051] 6 to 8, the first insertion rod 110 will be described in detail. When viewed along the specified direction, the first insertion rod 110 further includes a first curved surface 112 that is convex toward the opposite side to the first inclined surface 31. The first curved surface 112 is disposed at least in the specified directional range in which the first inclined surface 31 is disposed. The radius of curvature of the first curved surface 112 is approximately the same as the radius of the building material hole portion 8.

[0052] According to the above configuration, the first curved surface 112 can come into surface contact with the building material hole 8B having a length in the specified direction (see FIG. 2A). This makes it easier for the force for sliding to be transmitted to the building material hole 8B, allowing for smooth alignment work.

[0053] Furthermore, the first insertion rod 110 further includes a pair of first connection surfaces 113 that connect the first curved surface 112 and the first inclined surface 31. When viewed along the specified direction, the pair of first connection surfaces 113 are located inside the first virtual circle 91. Here, the first virtual circle 91 is a virtual circle whose radius centered on the axis of the first insertion rod 110 is the same as the curvature radius of the first curved surface 112. In the illustrated example, the first connection surface 113 is a flat surface, but the present invention is not limited to this and may have a curved shape. For example, the first connection surface 113 may be a concave curved surface that is recessed toward the axis of the first insertion rod 110, or a convex curved surface that is convex toward the direction away from the axis.

[0054] According to the above configuration, the first insertion rod 110 can be made thinner by the amount of the first connection surface 113 located inside the first virtual circle 91, so that when the first insertion rod 110 is inserted into a plurality of misaligned building material holes 8, the first insertion rod 110 does not get caught in the building material hole 8B. For example, when inserting the first insertion rod 110, the tip of the first insertion rod 110 shown in Fig. 8 is inserted first, but since the tip can be made thinner by the amount of the first connection surface 113 located inside the first virtual circle 91 and the tip can be prevented from getting caught in the building material hole 8B, the alignment work can be performed smoothly.

[0055] 9 is a schematic diagram showing a first insertion rod 110 according to some embodiments. A plurality of first vertical grooves 115 extending along a specified direction are formed in the first inclined surface 31. The extension direction of the first vertical grooves 115 is parallel to the longitudinal direction of the first inclined surface 31. The plurality of first vertical grooves 115 are also arranged at intervals along the width direction of the first inclined surface 31.

[0056] According to the above configuration, since the resistance caused by the unevenness of the groove between the first inclined surface 31 and the second inclined surface 32 can suppress the slippage, when the first insertion rod 110 moves to the other side in the specified direction, the first inclined surface 31 can be suppressed from slipping in the width direction relative to the second inclined surface 32, and the force transmitted to the building material hole 8B for sliding can be prevented from escaping. This allows the positioning work of the building material hole 8B to be performed smoothly.

[0057] <Details of the Second Bolt 22 and the Second Insertion Rod 220> As shown in Fig. 10, the second shank 24 of the second bolt 22 includes a threaded shank 241 on which a screw thread is formed, and an abutment shank 242 connected to the tip of the threaded shank 241 and abutting against the second insertion rod 220. The abutment shank 242 has a smaller diameter than the threaded shank 241. A ring groove 242c is formed in a portion of the abutment shank 242 on the threaded shank 241 side. The ring groove 242c is formed over the entire length in the circumferential direction centered on the axis of the second bolt 22. A second shank end surface 26, which is the end surface of the abutment shank 242 on the second insertion rod 220 side, has a curved shape recessed toward the second screw hole 14.

[0058] On the other hand, the second insertion rod end face 221, which is the end face of the second insertion rod 220 on the second bolt 22 side, has a curved shape that faces and abuts against the second shaft end face 26 of the second bolt 22. The second insertion rod end face 221 illustrated in FIG. 10 is curved convexly toward the second screw hole portion 14. Furthermore, a ring groove 220c is formed in the portion of the second insertion rod 220 on the second bolt 22 side. The depth of the ring groove 220c is the same as the depth of the ring groove 242c of the second bolt 22. In addition, the bottom surface of the ring groove 220c and the bottom surface of the ring groove 242c have the same outer diameter. However, the outer diameters of both bottom surfaces do not have to be the same, and the outer diameter of one of the bottom surfaces may be larger than the outer diameter of the other bottom surface. The depth of the ring groove 220c is the radial dimension of the ring groove 220c based on the axis of the second insertion rod 220, and the depth of the ring groove 242c is the radial dimension of the ring groove 232c based on the axis of the second bolt 22.

[0059] The alignment jig 1 illustrated in Fig. 10 further includes a second connecting member 42. The second connecting member 42 connects the second bolt 22 and the second insertion rod 220 such that the second shaft end surface 26 and the second insertion rod end surface 221 are slidable relative to each other. The second connecting member 42 is releasably attached to the second bolt 22 and the second insertion rod 220, and more specifically, is releasably attached to the ring grooves 242c, 220c. In this example, the second connecting member 42 can be attached from the outside in the radial direction based on the second insertion rod 220 and the second bolt 22.

[0060] The technical advantages obtained by adopting the above-mentioned configuration will be described with reference to Fig. 2B and Fig. 10. When the second bolt 22 is tightened, the second shaft end surface 26 and the second insertion rod end surface 221 slide against each other, so that the second insertion rod 220 is unlikely to rotate with the second bolt 22 even if the second bolt 22 rotates. As a result, only the linear force of the rotational force and linear force of the second bolt 22 is easily transmitted to the second insertion rod 220, and the second insertion rod 220 can move in the specified direction without changing the rotational position and push away the building material hole 8. Therefore, it is possible to prevent the building material 9B from rotating around the second insertion rod 220 when performing alignment.

[0061] 2B moves while pushing aside the building material hole 8 (arrow U), a force acts to make the axis of the second insertion rod 220 eccentric with respect to the axis of the second bolt 22. The details of this force are similar to those of the first insertion rod 110, and therefore will not be described here.

[0062] In this embodiment, the second insertion rod end surface 221 slides against the second shaft end surface 26, allowing the second insertion rod 220 to tilt with respect to the specified direction (though detailed illustration is omitted, a tilt phenomenon similar to that of the first insertion rod 110 shown in FIG. 5 occurs.) This allows the force that tends to make the axis of the second insertion rod 220 eccentric with respect to the axis of the second bolt 22 to be released, thereby reducing the load on the second insertion rod 220 and preventing damage to the second insertion rod 220.

[0063] The second shaft end surface 26 may have a curved shape that is convex in the direction away from the second screw hole portion 14. In this case, the second insertion rod end surface 221 has a curved shape that is concave in the direction away from the second screw hole portion 14, but the second shaft end surface 26 and the second insertion rod end surface 221 can still slide against each other, and both of the above-mentioned advantages of being able to suppress rotation of the second insertion rod 220 and being able to release the force that tends to make the second insertion rod 220 eccentric can be obtained.

[0064] Furthermore, by providing the second connecting member 42 which is detachable from the second bolt 22 and the second insertion rod 220, the second bolt 22 screwed into the second screw hole portion 14 can be connected to the second insertion rod 220 using the second connecting member 42 before starting the alignment work of the building material hole portion 8. In other words, since the work of inserting the second bolt 22 connected to the second insertion rod 220 into the second screw hole portion 14 is no longer necessary, the alignment work can be performed more easily.

[0065] 11 and 12, the second insertion rod 220 further includes a second curved surface 222 that is convex toward the opposite side to the second inclined surface 32 when viewed along the specified direction. The second curved surface 222 is disposed at least in the specified directional range in which the second inclined surface 32 is disposed. The radius of curvature of the second curved surface 222 is approximately the same as the radius of the building material hole 8.

[0066] According to the above configuration, the second curved surface 222 can come into surface contact with the building material hole portion 8B having a length in the specified direction (see FIG. 2B). This makes it easier for the force for sliding to be transmitted to the building material hole portion 8B, and allows for smooth alignment work.

[0067] Furthermore, the second insertion rod 220 further includes a pair of second connection surfaces 223 that connect the second curved surface 222 and the second connection surface 223. When viewed along the specified direction, the pair of second connection surfaces 223 are located inside the second virtual circle 92. Here, the second virtual circle 92 is a virtual circle whose radius is centered on the axis of the second insertion rod 220 and whose radius of curvature is the same as the radius of curvature of the second curved surface 222. In the illustrated example, the second connection surface 223 is a flat surface, but the present invention is not limited to this and may have a curved shape. For example, the second connection surface 223 may be a curved surface that is recessed toward the axis of the second insertion rod 220, or may be a curved surface that is convex toward the direction away from the axis.

[0068] According to the above configuration, the second insertion rod 220 can be made thinner by the amount that the second connection surface 223 is located inside the second imaginary circle 92, so that when the second insertion rod 220 is inserted into the misaligned building material holes 8, the second insertion rod 220 does not get caught in the building material hole 8B. Therefore, the alignment work can be performed smoothly.

[0069] 13 is a schematic diagram showing a second insertion rod 220 according to some embodiments. A plurality of second vertical grooves 225 extending along a specified direction are formed in the second inclined surface 32. The extension direction of the second vertical grooves 225 is parallel to the longitudinal direction of the second inclined surface 32. The plurality of second vertical grooves 225 are also arranged at intervals along the width direction of the second inclined surface 32.

[0070] According to the above configuration, the frictional force generated between the second inclined surface 32 and the first inclined surface 31 can be increased, so that when the second insertion rod 220 moves to the other side in the specified direction, the second inclined surface 32 can be prevented from shifting in the width direction relative to the first inclined surface 31, and the force transmitted to the building material hole 8B for sliding can be prevented from escaping. This allows the positioning operation of the building material hole 8B to be performed smoothly.

[0071] <Modification> The alignment jig 1 shown in FIG. 1 may not include the second screw hole portion 14 and the second bolt 22, and the second insertion rod 220 may be formed integrally with the second protrusion portion 12. Even in this case, if the first bolt 21 is tightened, the first insertion rod 110 can move while sliding the first inclined surface 31 against the second inclined surface 32, so that the building material hole portion 8 can be aligned. Instead of connecting the first bolt 21 and the first insertion rod 110 via the first connecting member 41 so that they can slide relative to each other, the first connecting member 41 may connect the first bolt 21 and the first insertion rod 110 so that the first insertion rod 110 can rotate relative to the first bolt 21 with a specified direction and angle. A similar modification may be applied to the second connecting member 42. [Explanation of symbols]

[0072] 1: Alignment jig 8,8A,8B: Building material hole 9,9A,9B: Building materials 10: Jig body 11: 1st protrusion 12:Second protrusion 13:First screw hole 14:Second screw hole 15: Extension part 21: First bolt 22: Second bolt 23: First shaft 24: Second shaft 25: 1st shaft end face 26: 2nd shaft end face 31: 1st slope 32:Second slope 41: First connecting member 42: Second connecting member 91: First imaginary circle 92: Second imaginary circle 110: First insertion rod 110c: Ring groove 111: End face of first insertion rod 112: First curved surface 113: First connection surface 115: First vertical groove 220: Second insertion rod 220c: Ring groove 221: End face of second insertion rod 222: Second curved surface 223: Second connection surface 225: Second vertical groove 231: Screw shaft 232: Contact shaft part 232c: Ring groove 241: Screw shaft 242: Contact shaft part 242c: Ring groove

Claims

1. An alignment jig for aligning a building material hole provided in each of a plurality of building materials constituting a building, a jig body including an extension portion extending in a specified direction, a first protruding portion protruding from the extension portion, a second protruding portion protruding from the extension portion so as to be aligned with the first protruding portion in the specified direction with the plurality of building materials therebetween, and a first screw hole portion provided in the first protruding portion; A first bolt that is screwed into the first screw hole portion; A first insertion rod that is connected to the first bolt, extends in the specified direction, and is inserted into the building material hole from one side in the specified direction; A second insertion rod that is connected to the second protruding portion, extends in the specified direction, and is inserted into the building material hole from the other side in the specified direction; Equipped with The first insertion rod includes a first inclined surface inclined with respect to the specified direction, the second insertion rod includes a second inclined surface that faces and abuts against the first inclined surface, When the first insertion rod moves in the specified direction due to rotation of the first bolt, the first inclined surface slides against the second inclined surface. Alignment jig.

2. The first bolt includes a first shaft portion extending in the specified direction, A first shaft end surface, which is an end surface of the first shaft portion on the first insertion rod side, has a convex or concave curved shape, The first insertion rod end surface, which is the end surface of the first insertion rod on the side of the first bolt, has a concave or convex curved shape that faces and abuts against the first shaft end surface. The alignment jig according to claim 1 .

3. a first connecting member that connects a first bolt and the first insertion rod so that the first shaft end surface and the first insertion rod end surface are slidable relative to each other; The first connecting member is releasably attached to the first bolt and the first insertion rod. The alignment jig according to claim 2 .

4. The first insertion rod further includes a first curved surface that is convex toward a side opposite to the first inclined surface when viewed along the specified direction. The alignment jig according to claim 1 .

5. The first insertion rod further includes a first connection surface connecting the first curved surface and the first inclined surface, When viewed in the specified direction, the first connection surface is located inside a first imaginary circle having a radius about an axis of the first insertion rod and the radius of curvature of the first curved surface. The alignment jig according to claim 4 .

6. The first inclined surface has a plurality of first longitudinal grooves extending along the specified direction. The alignment jig according to claim 1 or 2.

7. The jig body further includes a second screw hole portion provided in the second protrusion, The alignment jig further includes a second bolt screwed into the second screw hole portion, The second insertion rod is connected to the second bolt. When the second insertion rod moves in the specified direction due to rotation of the second bolt, the second inclined surface slides against the first inclined surface. The alignment jig according to claim 1 or 2.

8. The second bolt includes a second shaft portion extending in the specified direction, A second shaft end surface, which is an end surface of the second shaft portion on the second insertion rod side, has a convex or concave curved shape, The second insertion rod end surface, which is the end surface of the second insertion rod on the second bolt side, has a concave or convex curved shape that faces and abuts against the second shaft end surface. The alignment tool according to claim 7.

9. A second connecting member is provided to connect the second bolt and the second insertion rod so that the second shaft end surface and the second insertion rod end surface are slidable relative to each other. The second connecting member is releasably attached to the second bolt and the second insertion rod. The alignment jig according to claim 8 .

10. The second insertion rod further includes a second curved surface that is convex toward a side opposite to the second inclined surface when viewed along the specified direction. The alignment tool according to claim 7.

11. The second insertion rod further includes a second connecting surface connecting the second curved surface and the second inclined surface, When viewed in the specified direction, the second connection surface is located inside a second imaginary circle having a radius about an axis of the second insertion rod and the radius of curvature of the second curved surface is the same. The alignment tool according to claim 10.

12. The second inclined surface has a plurality of second longitudinal grooves formed thereon and extending along the specified direction. The alignment tool according to claim 7.

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