Adjustment jig and method for adjusting position

Abstract

To provide an adjustment jig, etc. capable of suitably adjusting positions of adjacent members including inclination thereof.SOLUTION: An adjustment jig 1 has a main body 2 arranged so as to straddle adjacent members 6, a plurality of mounting bolts 3 that passes through long holes 21 in the main body 2 and is screwed into inserts 7 provided in the respective members 6, and a plurality of adjustment bolts 4 that is screwed into nuts 22 provided in the main body 2 and has tips in contact with the respective members 6. When adjusting the position of the member 6, the axial position of the adjustment bolt 4 is adjusted for at least one member 6 by tightening or loosening the adjustment bolt 4 and the mounting bolt 3 from a state where the main body 2 is attached to the adjacent member 6 by the mounting bolt 3.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an adjustment jig or the like used for adjusting the positions of adjacent members. [Background technology]

[0002] When installing precast members (hereafter referred to as PCa members) for balconies, exterior walls, etc., side by side, it is sometimes necessary to correct misalignment or pitch misalignment of adjacent PCa members. Conventionally, in order to do this, both ends of a bolt that is passed through the joint space between adjacent PCa members is passed through jigs that are placed on the outer and inner sides of the PCa members so as to straddle both PCa members, and a nut is then tightened on the part of the bolt that protrudes from the jig to correct the misalignment or pitch misalignment.

[0003] Patent document 1 also describes how a fully threaded bolt that spans both concrete boxes is passed through both ends of fixing brackets fixed to each of the adjacent concrete boxes, and a nut is tightened onto the part of the fully threaded bolt that protrudes from the fixing brackets, thereby preventing the concrete boxes from shifting out of position or becoming gapped. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2009-114642 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, the above-mentioned conventional method aims to arrange adjacent members in a straight line, and it is difficult to precisely adjust the inclination of adjacent members (the inclination from the straight line). In addition, if adjacent members are arranged in a state of inclination to some extent, it is difficult to attach the jig. This is also the case with Patent Document 1, and the method of Patent Document 1 also has problems such as the difficulty of precisely adjusting the inclination of adjacent members.

[0006] In addition, in the conventional method described above, by placing a jig on the outer surface side of the PCa member, there was a risk that the jig would fall from a high place and damage the finished surface of the PCa member.

[0007] The present invention has been made in consideration of the above problems, and has an object to provide an adjustment jig or the like that can suitably perform position adjustment, including the inclination of adjacent components. [Means for solving the problem]

[0008] The first invention for solving the above-mentioned problems is an adjustment jig used to adjust the position of adjacent members, characterized in that it has a main body arranged to straddle the adjacent members, a plurality of mounting bolts for attaching the main body to the members, the plurality of mounting bolts passing through holes in the main body and screwing into female mounting portions provided on each member, and a plurality of adjustment bolts for adjusting the position of the members, the plurality of adjustment bolts screwing into female main body portions provided on the main body and having tips abutting each member.

[0009] The adjustment jig of the present invention is attached to one surface of an adjacent member, and the position of a member having any thickness or shape can be adjusted only by the adjustment jig attached to that surface. Therefore, it is not necessary to provide jigs on the inside and outside of the member, and the jig on the outer surface side of the member can be omitted. Furthermore, by adjusting the tightening amount of the adjustment bolt, etc., it is possible to adjust the position of the member in detail, including the inclination. Furthermore, due to the presence of the mounting bolt and the adjustment bolt, the jig body can be attached even if the adjacent members are arranged in a state of inclination to some extent.

[0010] The hole is desirably an elongated hole extending in the direction in which adjacent members are arranged. This makes it possible to mount the jig body on the member by absorbing any installation error of the member or any position error of the female screw portion for mounting with the long hole.

[0011] It is desirable that a nut into which the mounting bolt can be screwed is fixed to the main body. This allows the mounting bolt to be carried together with the jig body, preventing the mounting bolt from being lost.

[0012] The body female threaded portion is preferably a nut fixed to the body. This makes it possible to easily form the body female thread portion in the jig body.

[0013] The second invention is a position adjustment method using the adjustment jig of the first invention, characterized in that, after the main body is attached to an adjacent member by the mounting bolt, the axial position of the adjustment bolt for at least one of the members is adjusted by tightening or loosening the adjustment bolt and the mounting bolt. A second aspect of the present invention is a method for adjusting the position of a member using the adjustment jig of the first aspect of the present invention. Effect of the Invention

[0014] According to the present invention, it is possible to provide an adjustment jig or the like that can suitably perform position adjustment, including the inclination of adjacent members. [Brief description of the drawings]

[0015] [Figure 1] FIG. [Diagram 2] A diagram showing the main body 2. [Diagram 3] An example of adjusting the inclination of both components 6. [Figure 4] An example of fixing the mounting bolt 3 to the main body 2. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

[0017] (1. Adjustment jig 1) 1 is a diagram showing an adjustment jig 1 according to an embodiment of the present invention, showing a horizontal cross section of the adjustment jig 1 attached to two adjacent members 6. The members 6 are, for example, PCa concrete members used in balconies and exterior walls of buildings, and may also be half precast members (HPCa members). Both members 6 are installed side by side in the horizontal direction.

[0018] The adjustment jig 1 is used to adjust the positions of two adjacent members 6. As shown in Fig. 1, the adjustment jig 1 has a main body 2, a mounting bolt 3, an adjustment bolt 4, and the like.

[0019] The main body 2 is placed so as to straddle the faces A on the inner sides (the building interior sides) of both components 6. Fig. 2 is a diagram showing the main body 2. The main body 2 is, for example, a channel steel having a U-shaped cross section with flanges protruding from both ends of the web, and is placed with one face a of the web (the face where the flanges do not protrude) facing the component 6.

[0020] As shown in Fig. 1, the main body 2 is arranged with its longitudinal direction aligned with the direction in which adjacent members 6 are lined up (corresponding to the left-right direction in Fig. 1). Slots 21 and holes 23 are provided in the web of the main body 2. The slots 21 are holes that extend in the longitudinal direction of the main body 2, i.e., the direction in which adjacent members 6 are lined up, and are formed in pairs on both sides of the longitudinal direction of the main body 2. The holes 23 are provided on both sides of each slot 21 in the extension direction.

[0021] A nut 22 (main body internal thread portion) is fixed to the other surface b (the surface from which the flange protrudes) of the web of the main body 2 at a position corresponding to the hole 23. The internal thread hole of the nut 22 communicates with the hole 23. The nut 22 is welded to the surface b, but can be fixed by other methods. Also, as shown in Fig. 2, a nut 24 for temporarily fixing the mounting bolt 3 is fixed to the surface b by welding or the like. The situations in which the nut 24 is used will be described later.

[0022] The mounting bolts 3 are bolts for attaching the main body 2 to each member 6, and a plurality of them (two in the example of FIG. 1) are used in this embodiment. The mounting bolts 3 are headed bolts, and their shanks pass through the elongated holes 21 and screw into the female threaded hole of the insert 7 (female threaded mounting portion) that is embedded in advance on the inner surface A of the member 6. The width of the head of the mounting bolt 3 is larger than the width of the elongated holes 21, and by tightening the shank of the mounting bolt 3 into the insert 7, the main body 2 is pressed against the member 6 and fixed.

[0023] The adjustment bolt 4 is a bolt for adjusting the position of each member 6, and a plurality of bolts (four in the example of FIG. 1) are used in this embodiment. The adjustment bolt 4 is also a headed bolt, but its shaft is screwed into a nut 22, and the tip of the shaft passes through a hole 23 and comes into contact with the inner surface A of the member 6.

[0024] (2. Position adjustment method using adjustment jig 1) To adjust the position of adjacent members 6, the adjustment bolt 4 and the mounting bolt 3 are tightened or loosened from the state shown in Fig. 1 to adjust the position of at least one of the members 6 in the axial direction of the adjustment bolt 4 (corresponding to the up and down direction in Fig. 1). This makes it possible to correct misalignment of the members 6.

[0025] For example, the member 6 advances outward by loosening the mounting bolt 3 passed through the long hole 21 of the main body 2 and tightening the adjustment bolts 4 passed through the holes 23 on both sides of the long hole 21. Conversely, the member 6 retreats inward by loosening the adjustment bolts 4 while tightening the mounting bolts 3.

[0026] Furthermore, in this embodiment, the inclination of each member 6 can be adjusted for each member 6 by tightening and loosening the adjustment bolt 4. Fig. 3 shows an example in which, from the state in which both members 6 are aligned in a straight line as shown in Fig. 1 (shown by a chain line), one of the adjustment bolts 4 passed through holes 23 on both sides of the long hole 21 is loosened and the other is tightened to adjust the axial position of the adjustment bolt 4 of the member 6 as shown by the arrow c, and the inclination (inclination with respect to the above straight line) is set so that both members 6 are arranged in a V-shape in plan view. The tightening amount of the mounting bolt 3 is adjusted so that the main body 2 is pressed against the member 6 arranged at an angle.

[0027] Furthermore, the adjustment jig 1 of this embodiment can be attached to both adjacent components 6 even if the components 6 are arranged at a certain angle as shown in Figure 3, and by adjusting the position of the component 6 in the direction opposite to the arrow c described above, it is also possible to correct the state so that both components 6 are aligned in a straight line as shown in Figure 1.

[0028] After adjusting the positions of the members 6 in this manner, a filler material (not shown) such as concrete is filled into the gaps between adjacent members 6. The adjustment jig 1 can then be removed from the members 6 and carried to another location for reuse.

[0029] The nut 24 is used to carry the main body 2 and the mounting bolt 3 of the adjustment jig 1 as a unit. That is, when the adjustment jig 1 is not in use, the mounting bolt 3 can be fixed (temporarily fixed) to the main body 2 by screwing the shaft of the mounting bolt 3 into the female threaded hole of the nut 24 as shown in Fig. 4, and can be carried together with the main body 2, thereby preventing the mounting bolt 3 from being lost. Two nuts 24 are provided in accordance with the number of mounting bolts 3, but their positions are not particularly important. The adjustment bolt 4 can be carried together with the main body 2 as long as it is left screwed into the nut 22.

[0030] As described above, the adjustment jig 1 of this embodiment is attached to one surface A of an adjacent member 6, and the position of the member 6 having any thickness or shape can be adjusted only by the adjustment jig 1 attached to the surface A. Therefore, there is no need to provide jigs on the inside and outside of the member 6, and a jig on the outer surface side of the member 6 can be omitted.

[0031] Furthermore, in this embodiment, by adjusting the amount of tightening of the adjustment bolts 4, etc., it is possible to adjust the position of the member 6 in detail, including the inclination. Also, due to the presence of the mounting bolts 3 and the adjustment bolts 4, the main body 2 can be attached even if the adjacent member 6 is arranged in a state of being tilted to some extent.

[0032] In addition, by passing the mounting bolt 3 through the long hole 21 and screwing it into the insert 7 of the member 6, the installation error of the member 6 and the position error of the insert 7 are absorbed by the long hole 21, making it possible to attach the main body 2 of the adjustment jig 1 to the member 6.

[0033] In this embodiment, the nut 24 that screws onto the mounting bolt 3 is fixed to the main body 2, so that the mounting bolt 3 can be carried together with the main body 2, preventing the mounting bolt 3 from being lost.

[0034] Furthermore, in this embodiment, the nut 22 fixed to the main body 2 makes it possible to easily form in the main body 2 a female thread portion (main body female thread portion) into which the adjustment bolt 4 is screwed.

[0035] However, the present invention is not limited to the above embodiment. For example, in the adjustment jig 1 of this embodiment, a channel steel is used for the main body 2, but the main body 2 is not limited to this, and an angle material having an L-shaped cross section can also be used, and materials other than steel can also be used as long as they have sufficient strength and rigidity. In addition, it is sufficient that at least one mounting bolt 3 and one adjustment bolt 4 are provided for each member 6, and the number of bolts is not particularly limited.

[0036] In this embodiment, the long hole 21 is used to absorb installation errors of the member 6 and attach the main body 2 to the member 6, but if the errors are not a problem or can be absorbed by a different method, a normal hole (a circular hole having about the same diameter as the shaft of the mounting bolt 3) can be used instead of the long hole 21. Furthermore, in this embodiment, the nut 22 is fixed to the main body 2 and the adjustment bolt 4 is screwed into it, but a tapped hole may be formed in the main body 2 and the adjustment bolt 4 may be screwed into the female thread of the tapped hole (the female threaded portion of the main body).

[0037] In addition, in this embodiment, the insert 7 is embedded in the member 6 to form a female threaded portion (female threaded portion for mounting) into which the mounting bolt 3 is screwed, but this is not limited to this, and for example, the female threaded portion may be formed by fixing a nut to the surface A of the member 6 on the side of the adjustment jig 1.

[0038] In this embodiment, the two members 6 to be adjusted in position are concrete PCa members or HPCa members, but this is not limited thereto, and one member 6 may be a newly constructed or existing structure made of cast-in-place concrete, in which case it is sufficient to adjust the position of only the other member 6. Furthermore, the member 6 to be adjusted in position is not limited to being made of concrete.

[0039] In addition, in this embodiment, the two members 6 to be adjusted in position are arranged horizontally, but the adjustment jig 1 of the present invention can also be applied to adjusting the positions of two members 6 arranged vertically by arranging the main body 2 in the vertical direction.

[0040] Although the preferred embodiment of the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to the above examples. It is clear that a person skilled in the art can come up with various modified or altered examples within the scope of the technical ideas disclosed in this application, and it is understood that these also naturally belong to the technical scope of the present invention. [Explanation of symbols]

[0041] 1: Adjustment jig 2: Main unit 3: Mounting bolts 4: Adjustment bolt 6: Materials 7: Insert (female thread for mounting) 21: Long hole 22: Nut (main body female thread part) 24: Nut 23: Hole

Claims

1. An adjustment jig used to adjust the position of adjacent members, A main body disposed so as to straddle adjacent members; a plurality of mounting bolts for mounting the main body to the members, the mounting bolts passing through holes in the main body and screwing into female threaded portions provided on each member; A plurality of adjustment bolts for adjusting the positions of the members, the adjustment bolts being screwed into female threaded portions of the main body and having tips that abut against the respective members; An adjustment jig comprising:

2. 2. The adjustment jig according to claim 1, wherein the hole is an elongated hole extending in a direction in which adjacent members are arranged.

3. 2. An adjustment jig as claimed in claim 1, wherein a nut into which the mounting bolt can be screwed is fixed to the body.

4. 2. The adjustment jig according to claim 1, wherein the body female thread portion is a nut fixed to the body.

5. A position adjustment method using the adjustment jig according to any one of claims 1 to 4, comprising the steps of: A position adjustment method characterized by adjusting the axial position of the adjustment bolt for at least one of the members by tightening or loosening the adjustment bolt and the mounting bolt after the main body is attached to an adjacent member by the mounting bolt.

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