Fixing elements and fixing element sets for anchor bolts

Abstract

To provide an anchor bolt fixing member that can be easily attached to an anchor bolt with sufficient strength.SOLUTION: An anchor bolt fixing member 100 is provided with: a first clamp part 11 including a first curved part curved along a circumferential direction of an anchor bolt to clamp an outer peripheral surface of the anchor bolt; a second anchor clamp part 12 including a second curved part curved along the circumferential direction to clamp the outer peripheral surface of the anchor bolt; a third clamp part 13 positioned between the first clamp part 11 and the second clamp part 12 along a specific alignment direction and including the third curved part curved along the circumferential direction to clamp the outer peripheral surface of the anchor bolt; a first connection part 21 connecting one end of the first clamp part 11 to one end of the third clamp part 13; a second connection part 22 connecting one end of the second clamp part 12 to the other end of the third clamp part 13; a first protruding part 41 protruding from the other end of the first clamp part 11 so as to go away from a reference straight line orthogonal to the alignment direction; and a second protruding part 42 protruding from the other end of the second clamp part 12 so as to go away from the reference straight line.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a fixing member for fixing an anchor bolt. [Background technology]

[0002] In various architectural structures such as bridges, tunnels, dams, buildings, and factories, anchor bolts are used to connect other members to concrete skeletons. For example, anchor bolts are used when attaching fall prevention brackets and earthquake dampers to concrete skeletons in earthquake-resistance reinforcement work, and when attaching machines, piping equipment, etc. to concrete skeletons. In these cases, first, holes are drilled in the concrete skeleton and the anchor bolts are fixed in the holes.

[0003] For example, a metal anchor method has been proposed for fixing an anchor bolt, in which the bottom of the anchor bolt inserted into the hole is mechanically expanded to bite into the hole wall. However, in repair and reinforcement work on existing building structures, sufficient concrete strength cannot be expected due to deterioration of the concrete over time. Therefore, there is a possibility that the metal anchor method will not be able to fix the anchor bolt with sufficient strength.

[0004] Therefore, an adhesive method has been proposed in which an anchor bolt is fixed in a borehole in a concrete structure with an adhesive. Specifically, in the adhesive method, a borehole is formed in the concrete, and an adhesive (e.g., polymer adhesive such as epoxy, acrylic, or polyester adhesive, or cement-based inorganic adhesive) is filled in the borehole, and then the anchor bolt is inserted. The adhesive is then cured to fix the anchor bolt in the concrete structure. In the adhesive method, a borehole is generally formed to a depth of about 7 to 15 times the diameter of the anchor bolt, so that the fixing force of the anchor bolt is sufficiently ensured.

[0005] Here, in the adhesive method, the diameter of the anchor bolt is 2.0 to 10.0 mm. mmA drilling hole is formed with a clearance of about 1 mm. However, this clearance may cause the anchor bolt to be improperly fixed. For example, when forming a drilling hole in the horizontal direction (when performing construction facing sideways), the anchor bolt may move downward due to its own weight before the adhesive hardens and come into contact with the wall surface of the hole, so that the adhesive is not filled around the entire circumference of the anchor bolt, and the adhesive may not be sufficiently secured to provide a sufficient adhesive area between the anchor bolt and the adhesive. Similarly, when forming a drilling hole in the vertical direction (when performing construction facing upward), the adhesive may move downward due to its own weight before the adhesive hardens and the adhesive may not be sufficiently secured to provide a sufficient adhesive area between the anchor bolt and the adhesive. If the adhesive area is not sufficiently secured, the anchor bolt will not be secured with sufficient strength. As described above, the anchor bolt moves downward before the adhesive hardens, which causes a problem that the anchor bolt is not properly secured.

[0006] Therefore, various techniques have been proposed to prevent the anchor bolt from moving before the adhesive hardens. For example, in the case of horizontal construction, there is a technique of pushing a camber to hold the anchor bolt in place at the bottom of the drilled hole. In the case of upward construction, there is a technique of temporarily holding the anchor bolt in place on the concrete frame with a wire or the like before the adhesive hardens, thereby preventing the anchor bolt from moving downward under its own weight. However, these techniques have the problem of being very time-consuming and inefficient.

[0007] Therefore, a technology has been proposed in which a fixing member is attached to the anchor bolt to prevent movement before the adhesive hardens. For example, Patent Document 1 discloses a fixing member for an anchor bolt that includes one fixing part that grips the circumferential direction of the anchor bolt and two arms that protrude from both ends of the fixing part. The anchor bolt is inserted into a borehole with the solid member for the anchor bolt attached. The anchor bolt inserted into the borehole is firmly fixed in the borehole by the tips of the two arms of the fixing member for the anchor bolt biting into the hole wall. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Patent Application No. 2021-071046 Summary of the Invention [Problem to be solved by the invention]

[0009] However, although the fixing member for an anchor bolt in Patent Document 1 can be easily attached to an anchor bolt, there is room for improvement in terms of attaching it to the anchor bolt with sufficient strength. If it cannot be attached to the anchor bolt with sufficient strength, there is a problem that the fixing member for an anchor bolt may shift in position when inserted into a drilled hole, or the fixing member for an anchor bolt may come off. These problems are particularly noticeable in the case of deformed reinforcing bars such as deformed steel bars and threaded reinforcing bars. In consideration of the above circumstances, the object of the present invention is to provide a fixing member for an anchor bolt that can be attached to an anchor bolt with sufficient strength. [Means for solving the problem]

[0010] The anchor bolt fixing member according to the present invention is a member made of a series of wire rods and attached to an outer peripheral surface of an anchor bolt, the member including a first curved portion curved along a circumferential direction of the anchor bolt and one end and the other end, a first gripping portion that grips the outer peripheral surface of the anchor bolt, a second curved portion curved along the circumferential direction and one end and the other end, a second gripping portion that grips the outer peripheral surface of the anchor bolt, a third curved portion curved along the circumferential direction and one end and the other end, which is located between the first gripping portion and the second gripping portion along a predetermined arrangement direction, and which grips the outer peripheral surface of the anchor bolt, and a third gripping portion that connects one end of the first gripping portion and one end of the third gripping portion. a first connecting portion connecting the other end of the second gripping portion and the other end of the third gripping portion; a first protruding portion protruding from the other end of the first gripping portion in a direction away from a reference straight line that passes through a midpoint of a line segment passing between one end and the other end of the third gripping portion and is perpendicular to the arrangement direction; and a second protruding portion protruding from one end of the second gripping portion in a direction away from the reference straight line, wherein the one end of the first gripping portion and the one end of the second gripping portion are on the same side as the one end of the third gripping portion with respect to the reference straight line when viewed from the arrangement direction, and the other end of the first gripping portion and the other end of the second gripping portion are on the same side as the other end of the third gripping portion with respect to the reference straight line when viewed from the arrangement direction.

[0011] The anchor bolt fixing member according to the present invention is a member made of a series of wire rods and attached to an outer circumferential surface of an anchor bolt, the member including a first curved portion curved along the circumferential direction of the anchor bolt and one end and the other end, a first gripping portion for gripping the outer circumferential surface of the anchor bolt, a second curved portion curved along the circumferential direction and one end and the other end, a second gripping portion for gripping the outer circumferential surface of the anchor bolt, and a first gripping portion for gripping the outer circumferential surface of the anchor bolt along a predetermined arrangement direction. a third gripping portion located between the first gripping portion and the second gripping portion, the third gripping portion including a third curved portion curved along the circumferential direction and one end and the other end, the third gripping portion gripping an outer peripheral surface of the anchor bolt; a first connecting portion connecting one end of the first gripping portion to one end of one of the (2N-1) third gripping portions adjacent to the first gripping portion; a second connecting portion connecting one end of the first gripping portion to the other end of the third gripping portion; (N-1) third connecting portions connecting one ends of two adjacent third gripping portions to each other; (N-1) fourth connecting portions connecting the other ends of two adjacent third gripping portions to each other; a first protruding portion protruding from the other end of the first gripping portion in a direction away from a reference line that passes through a midpoint of a line segment that passes through one end and the other end of the third gripping portion and is perpendicular to the arrangement direction; the third connecting portion and the fourth connecting portion are positioned alternately along the arrangement direction, one end of the first gripping portion and one end of the second gripping portion are on the same side as one ends of the third gripping portions with respect to the reference straight line as a center when viewed from the arrangement direction, and the other end of the first gripping portion and the other end of the second gripping portion are on the same side as the other ends of the third gripping portions with respect to the reference straight line as a center when viewed from the arrangement direction.

[0012] The fixing member set of the present invention comprises a plate-shaped retaining member having N through holes formed therein, and N anchor bolt fixing members, and the N anchor bolt fixing members are held by the retaining member by fitting portions of the N anchor bolt fixing members between the other end of the first gripping portion and one end of the second gripping portion in the overall length direction thereof into each of the N through holes. Effect of the Invention

[0013] The anchor bolt fixing member according to the present invention can be attached to the anchor bolt with sufficient strength. [Brief description of the drawings]

[0014] [Figure 1] FIG. 2 is a front view of the anchor bolt with the anchor bolt fixing member according to the first embodiment attached thereto. [Diagram 2] FIG. 2 is a rear view of the anchor bolt with the fixing member attached according to the first embodiment. [Diagram 3] FIG. [Figure 4] 13 is a diagram of the fixing member as viewed from the X direction. [Diagram 5] 13 is a view of the fixing member as viewed from the Z direction. [Figure 6] 13 is a view of the fixing member as viewed from the Y direction. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. [Figure 10] 1 is a photograph of an anchor bolt with a fixing member attached thereto. [Figure 11] FIG. 13 is an explanatory diagram (before casting) of the process of casting an anchor bolt with a fixing member attached. [Figure 12] FIG. 11 is an explanatory diagram of the process of casting an anchor bolt with a fixing member attached thereto (after casting). [Figure 13] 13 is a view of a fixing member according to the second embodiment as viewed from the Z direction. FIG. [Figure 14] FIG. 11 is a front view of the anchor bolt with the anchor bolt fixing member according to the second embodiment attached thereto. [Figure 15] 13 is a view of a fixing member according to a third embodiment as viewed from the Z direction. FIG. [Figure 16]13 is a photograph of an anchor bolt with an anchor bolt fixing member according to a third embodiment attached thereto. [Figure 17] 13 is a view of a fixing member according to a fourth embodiment as viewed from the Z direction. FIG. [Figure 18] FIG. 13 is a front view of a fixing member set according to a fifth embodiment. [Figure 19] FIG. 13 is a rear view illustrating the fixing member set according to the fifth embodiment. [Figure 20] 13 is a side view illustrating a fixing member set according to the fifth embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] First Embodiment The fixing member for an anchor bolt according to the first embodiment (hereinafter referred to as "fixing member 100") is a member used for fixing an anchor bolt B in a borehole formed in a concrete building.

[0016] 1 and 2 are a front view and a rear view of an anchor bolt B with a fixing member 100 attached thereto. As illustrated in Fig. 1 and Fig. 2, the fixing member 100 is a structure that is attached to the outer circumferential surface of the anchor bolt B. Note that Fig. 1 illustrates a deformed anchor bolt B (deformed steel bar) with a protrusion (node) on its outer circumferential surface. The anchor bolt B with the fixing member 100 attached thereto is inserted after an adhesive is filled into a borehole formed in a concrete member.

[0017] In the following description, the direction parallel to the axial direction of anchor bolt B is referred to as the X direction, the direction perpendicular to the X direction is referred to as the Y direction, and the direction perpendicular to both the X direction and the Y direction is referred to as the Z direction.

[0018] FIG. 3 is a perspective view of fixing member 100, FIG. 4 is a view of fixing member 100 when viewed from the X direction, FIG. 5 is a view of fixing member 100 when viewed from the Z direction, and FIG. 6 is a view of fixing member 100 when viewed from the Y direction.

[0019] 3 to 6, the fixing member 100 is a member made of a series of wires (linear metal material). The fixing member 100 of the first embodiment includes a first gripping portion 11, a second gripping portion 12, a third gripping portion 13, a first connecting portion 21, a second connecting portion 22, a first protruding portion 41, and a second protruding portion 42. Each element (11, 12, 13, 21, 22, 41, 42) constituting the fixing member 100 is formed continuously without breaks.

[0020] The first gripping portion 11, the second gripping portion 12, and the third gripping portion 13 are portions that grip the outer peripheral surface of the anchor bolt B. The first gripping portion 11, the second gripping portion 12, and the third gripping portion 13 are arranged along the X direction. The third gripping portion 13 is located between the first gripping portion 11 and the second gripping portion 12. In other words, the X direction can be said to be the direction in which the first gripping portion 11, the second gripping portion 12, and the third gripping portion 13 are arranged (an example of an "arrangement direction").

[0021] In the following description, when there is no need to distinguish between the first gripping portion 11, the second gripping portion 12, and the third gripping portion 13, they will simply be referred to as "grip portions."

[0022] Each of the gripping portions (11, 12, 13) is formed so as to be able to firmly grip the outer circumferential surface of the anchor bolt B in a wound state. Each of the gripping portions in the first embodiment is formed into a shape that follows the circumferential direction of the anchor bolt B as a whole. The gripping portions are arranged in the X direction at predetermined intervals from each other. Each of the gripping portions will be described in detail below.

[0023] Fig. 7 is a view focusing on the third gripping portion 13 of the fixing member 100 in Fig. 4. As illustrated in Fig. 5 to Fig. 7, the third gripping portion 13 in the first embodiment is a portion that extends in the same plane (in a plane parallel to the YZ plane in the first embodiment) over its entire length.

[0024] 7, the third gripping portion 13 of the first embodiment includes a third curved portion 131, a first straight portion 132, a second straight portion 133, and a first end (an example of "one end") Tc1 and a second end (an example of "the other end") Tc2 located opposite each other. In other words, the first end Tc1 and the second end Tc2 are end portions located opposite each other in a portion (i.e., the third gripping portion 13) formed into a shape along the circumferential direction in the same plane.

[0025] The third curved portion 131 is a portion of the third gripping portion 13 that is curved to follow the circumferential direction of the anchor bolt B. The third curved portion 131 in the first embodiment is formed in an arc shape. It is preferable that the diameter of an imaginary circle S3 determined inside the third curved portion 131 when viewed from the X direction is smaller than the diameter of the anchor bolt B. It is preferable that the length (arc length) of the third curved portion 131 is longer than the circumferential length of the semicircle of the circle S3.

[0026] In the first embodiment, the third gripping portion 13 is formed in a shape that is symmetrical with respect to a line L3 that passes through the center P of the circle S3 and is parallel to the Z direction when viewed from the X direction. Fig. 7 illustrates a line (hereinafter referred to as a "reference line") L0 that passes through the midpoint of a line segment J that passes through the first end Tc1 and the second end Tc2 of the third gripping portion 13 and is perpendicular to the X direction. Although the reference line L0 in the first embodiment is illustrated as coinciding with the line L3, it may not coincide with the line L3 depending on the shape of the third gripping portion 13.

[0027] As illustrated in FIG. 7, the first straight line portion 132 and the second straight line portion 133 are located on opposite sides of the third curved portion 131 and are linear portions formed continuously from the third curved portion 131. In the example illustrated in FIG. 7, the first straight line portion 132 is formed from the end of the third curved portion 131 on the negative side in the Y direction, and the second straight line portion 133 is formed from the end of the third curved portion 131 on the positive side in the Y direction. In the first embodiment, the first straight line portion 132 and the second straight line portion 133 are formed so as to incline toward the reference line L0. The first straight line portion 132 and the second straight line portion 133 are formed to have the same length. However, the lengths of the first straight line portion 132 and the second straight line portion 133 may be different.

[0028] In the first embodiment, the end of the first straight portion 132 opposite to the third curved portion 131 is the first end Tc1, and the end of the second straight portion 133 opposite to the third curved portion 131 is the second end Tc2. The first end Tc1 and the second end Tc2 are spaced apart by a predetermined distance.

[0029] The first end Tc1 and the second end Tc2 are located on the positive side in the Z direction of the portion of the circumference of the circle S3 that is located on the most positive side in the Z direction (the intersection of the circle S3 and the reference line L0 on the positive side in the Z direction). The first end Tc1 and the second end Tc2 in the first embodiment are located symmetrically with respect to the reference line L0.

[0030] Fig. 8 is a view focusing on the first gripping portion 11 of the fixing member 100 in Fig. 4. Fig. 8 also illustrates the reference line L0. As illustrated in Figs. 5, 6, and 8, the first gripping portion 11 in the first embodiment is a portion that extends in the same plane (in a plane parallel to the YZ plane in the first embodiment) over its entire length.

[0031] 8, the first gripping portion 11 of the first embodiment includes a first curved portion 111, a straight portion 112, and a first end (an example of "one end") Ta1 and a second end (an example of "the other end") Ta2 located opposite each other. In other words, the first end Ta1 and the second end Ta2 are end portions located opposite each other in a portion (i.e., the first gripping portion 11) formed into a shape along the circumferential direction in the same plane.

[0032] The first curved portion 111 is a portion of the first gripping portion 11 that is curved to follow the circumferential direction of the anchor bolt B. The first curved portion 111 of the first embodiment is formed in an arc shape. It is preferable that the diameter of an imaginary circle S1 determined inside the first curved portion 111 when viewed from the X direction is smaller than the diameter of the anchor bolt B. It is preferable that the length (arc length) of the first curved portion 111 is greater than the circumferential length of the semicircle of the circle S1. The diameter of the circle S1 is equal to the diameter of the circle S3.

[0033] The straight line portion 112 is a straight line portion that is continuously formed from one end (the end on the negative side in the Y direction) of the first curved portion 111. In the first embodiment, a case is illustrated in which a straight line that passes through the center P of the circle S1 and is parallel to the Z direction coincides with the reference straight line L0 when viewed from the X direction.

[0034] The straight line portion 112 is formed so as to be inclined toward the reference straight line L0. For example, the straight line portion 112 is inclined so as to overlap with the first straight line portion 132 of the third gripping part 13 when viewed from the X direction. Note that in the first embodiment, a configuration in which the length of the straight line portion 112 is equal to the length of the first straight line portion 132 is exemplified.

[0035] In the first embodiment, the end of the straight portion 112 opposite to the first curved portion 111 is the first end Ta1, and the end of the first curved portion 111 opposite to the straight portion 112 is the second end Ta2. The first end Ta1 and the second end Ta2 are located on opposite sides of the reference straight line L0.

[0036] The second end Ta2 of the first gripping portion 11 is located closer to a portion U where the reference line L0 and the first gripping portion 11 intersect than one end of the first gripping portion 11 when viewed from the X direction.

[0037] Fig. 9 is a view focusing on the second gripping portion 12 of the fixing member 100 in Fig. 4. Fig. 9 also illustrates the reference line L0. As illustrated in Figs. 5, 6, and 9, the second gripping portion 12 in the first embodiment is a portion that extends in the same plane (in a plane parallel to the YZ plane in the first embodiment) over its entire length.

[0038] 9, the second gripping portion 12 of the first embodiment includes a second curved portion 121, a straight portion 122, and a first end (an example of "one end") Tb1 and a second end (an example of "the other end") Tb2 located opposite each other. In other words, the first end Tb1 and the second end Tb2 are end portions located opposite each other in a portion (i.e., the second gripping portion 12) formed into a shape along the circumferential direction in the same plane.

[0039] The second curved portion 121 is a portion of the second gripping portion 12 that is curved to follow the circumferential direction of the anchor bolt B. The second curved portion 121 in the first embodiment is formed in an arc shape. It is preferable that the diameter of an imaginary circle S2 determined inside the second curved portion 121 when viewed from the X direction is smaller than the diameter of the anchor bolt B. It is preferable that the length (arc length) of the second curved portion 121 is greater than the circumferential length of the semicircle of the circle S2. The diameter of the circle S2 is equal to the diameters of the circles S3 and S1.

[0040] The straight line portion 122 is a straight line portion that is continuously formed from one end (the end on the positive side in the Y direction) of the second curved portion 121. In the first embodiment, a case is illustrated in which a straight line that passes through the center P of the circle S2 and is parallel to the Z direction coincides with the reference straight line L0 when viewed from the X direction.

[0041] The straight line portion 112 is formed so as to be inclined toward the reference line L0. For example, the straight line portion 122 is inclined so as to overlap with the second straight line portion 133 of the third gripping portion 13 when viewed from the X direction. Note that the first embodiment illustrates a configuration in which the length of the straight line portion 122 is equal to the length of the second straight line portion 133. In other words, the first gripping portion 11 and the second gripping portion 12 have a relationship in which the left and right (positive and negative sides in the X direction) are inverted.

[0042] In the first embodiment, the end of the straight portion 122 opposite to the second curved portion 121 is the second end Tb2, and the end of the second curved portion 121 opposite to the straight portion 112 is the first end Tb1. The first end Tb1 and the second end Tb2 are located on opposite sides of the reference line L0. When viewed from the X direction, the first end Tb1 of the second gripping portion 12 is located closer to a portion U where the reference line L0 and the second gripping portion 12 intersect than the second end Tb2 of the second gripping portion 12.

[0043] 3 to 6, the first gripping portion 11 and the second gripping portion 12 are typically provided so as to overlap the third gripping portion 13 when viewed from the X direction. In other words, the first gripping portion 11, the second gripping portion 12, and the third gripping portion 13 are provided so that the center P of the circle S1, the center P of the circle S2, and the center P of the circle S3 coincide when viewed from the X direction. Note that the first gripping portion 11, the second gripping portion 12, and the third gripping portion 13 do not need to completely overlap as long as they are each capable of gripping the outer circumferential surface of the anchor bolt B, and there may be cases where their positions are misaligned within the range of manufacturing error.

[0044] As illustrated in Figures 7 to 9, when viewed from the X direction, the first end Ta1 of the first gripping portion 11 and the first end Tb1 of the second gripping portion 12 are located on the same side as the first end Tc1 of the third gripping portion 13 with respect to the reference line L0, and the second end Ta2 of the first gripping portion 11 and the second end Tb2 of the second gripping portion 12 are located on the same side as the second end Tc2 of the third gripping portion 13 with respect to the reference line L0.

[0045] 5, the distance D1 between the first gripping portion 11 and the third gripping portion 13 is constant in the circumferential direction. Similarly, the distance D2 between the second gripping portion 12 and the third gripping portion 13 is constant in the circumferential direction. The distances D1 and D2 are set according to the width of the nodes of the anchor bolt B.

[0046] In addition, in the present invention, when the terms "constant," "match," "equivalent (the same)," and "overlap" are used, this not only refers to the strict cases of "constant," "match," "equivalent (the same)," and "overlap," but also includes the cases of "constant," "match," "equivalent (the same)," and "overlap" within the range of manufacturing error.

[0047] 5 and 6, the first connecting portion 21 is a portion that connects the first end Ta1 of the first gripping portion 11 and the first end Tc1 of the third gripping portion 13. Specifically, the first connecting portion 21 is a portion that extends along the X direction (the axial direction of the anchor bolt B).

[0048] 6, the first connecting portion 21 of the first embodiment is formed in a curved shape. Specifically, the first connecting portion 21 is formed so as to be curved in the opposite direction to the third curved portion 131 when viewed from the Y direction (an example of "a direction perpendicular to the arrangement direction and the reference straight line").

[0049] 5 and 6, the second connecting portion 22 is a portion that connects the second end Tb2 of the second gripping portion 12 and the second end Tc2 of the third gripping portion 13. Specifically, the first connecting portion 21 is a portion that extends along the X direction (the axial direction of the anchor bolt B).

[0050] 6, the second connecting portion 22 in the first embodiment is formed in a curved shape. Specifically, the second connecting portion 22 is formed so as to be curved in the opposite direction to the third curved portion 131 when viewed from the Y direction.

[0051] In other words, the first end Tc1 of the third gripping portion 13 is a boundary portion between the third gripping portion 13 extending in a plane parallel to the YZ plane and the first connecting portion 21 extending in a direction intersecting the plane. Similarly, the second end Tc2 of the third gripping portion 13 is a boundary portion between the third gripping portion 13 extending in a plane parallel to the YZ plane and the second connecting portion 22 extending in a direction intersecting the plane.

[0052] As illustrated in FIG. 2, the length (length in the X direction) of the first connecting portion 21 and the length (length in the X direction) of the second connecting portion 22 are set, for example, so that when the fixing member 100 is attached to the anchor bolt B, it can be positioned between two nodes (ribs) adjacent to each other in the X direction.

[0053] 1 and 2, the first gripping portion 11, the second gripping portion 12, the third gripping portion 13, the first connecting portion 21, and the second connecting portion 22 as a whole (the portion between the second end Ta2 of the first gripping portion 11 and the first end Tb1 of the second gripping portion 12 in the overall length direction of the fixing member 100) function as elements for attaching the fixing member 100 to the outer circumferential surface of the anchor bolt B. The fixing member 100 is attached to the anchor bolt B by fitting the anchor bolt B through the space (opening) between the first connecting portion 21 and the second connecting portion 22.

[0054] The first protrusion 41 and the second protrusion 42 in Figures 1 and 2 are elements that fix the anchor bolt B within the borehole by coming into contact with the inner wall of the borehole when the anchor bolt B is inserted into the borehole.

[0055] As illustrated in FIG. 8, the first protrusion 41 is a portion that protrudes from the second end Ta2 of the first gripping portion 11 in a direction away from the reference line L0. The first protrusion 41 in the first embodiment is linear. The first protrusion 41 protruding in a direction away from the reference line L0 refers to a state in which the first protrusion 41 is inclined at an angle θ11 when viewed from the X direction. The angle θ11 can also be said to be the angle between the reference line L0 and the first protrusion 41. The angle θ11 is the angle between the first protrusion 41 and the reference line L0 on the side opposite to the first curved portion 111.

[0056] Specifically, the angle θ11 is greater than 0° and equal to or less than 90°. The angle θ11 in the first embodiment is, for example, equal to or greater than 10° and equal to or less than 88°, and preferably equal to or greater than 20° and equal to or less than 85°.

[0057] 5, when viewed from the Z direction (i.e., a direction parallel to the reference line L0), the first protrusion 41 of the first embodiment is inclined at an angle θ12 from the second end Ta2 of the first gripping portion 11 toward the third gripping portion 13. The angle θ12 is, for example, greater than 0° and equal to or less than 60°, and preferably equal to or greater than 20° and equal to or less than 50°. Setting the angle θ12 within the above range has the advantage that the anchor bolt B becomes easier to insert into the drilled hole and is less likely to fall out.

[0058] Note that the state where the angle θ12 is 0° means that the first protrusion 41 exists in a plane (a plane parallel to the YZ plane) on which the first gripping portion 11 exists. In other words, the angle θ12 is the angle between the first protrusion 41 and the plane on which the first gripping portion 11 exists.

[0059] As illustrated in FIG. 9, the second protrusion 42 is a portion that protrudes from the first end Tb1 of the second gripping portion 12 in a direction away from the reference line L0. The second protrusion 42 in the first embodiment is linear. The second protrusion 42 protruding in a direction away from the reference line L0 refers to a state in which the second protrusion 42 is inclined at an angle θ21 when viewed from the X direction. In other words, the angle θ21 is the angle between the reference line L0 and the second protrusion 42. The angle θ21 is the angle between the second protrusion 42 and the reference line L0 on the side opposite to the second curved portion 121.

[0060] Specifically, the angle θ21 is greater than 0° and equal to or less than 90°. The angle θ21 in the first embodiment is, for example, equal to or greater than 10° and equal to or less than 88°, and preferably equal to or greater than 20° and equal to or less than 85°.

[0061] 5, when viewed from the Z direction (i.e., a direction parallel to the reference line L0), the second protrusion 42 is inclined at an angle θ22 from the first end Tb1 of the second gripping portion 12 to the opposite side to the third gripping portion 13. The angle θ22 is, for example, greater than 0° and equal to or less than 60°, and preferably equal to or greater than 20° and equal to or less than 50°. Setting the angle θ22 within the above range has the advantage that the anchor bolt B becomes easier to insert into the drilled hole and is less likely to fall out.

[0062] Note that the state where the angle θ22 is 0° means that the second protrusion 42 is present in a plane (a plane parallel to the YZ plane) on which the second gripping portion 12 is present. In other words, the angle θ22 is the angle between the plane on which the second gripping portion 12 is present and the second protrusion 42.

[0063] In the first embodiment, a configuration in which the angle θ12 and the second angle θ22 are the same is illustrated as an example, but they may be different.

[0064] Fig. 10 is a photograph of the anchor bolt B with the fixing member 100 attached. Fig. 10(a) is a photograph of the anchor bolt B taken from the Z direction, and Fig. 10(b) is a photograph of the anchor bolt B taken from the X direction.

[0065] 10(b), it is preferable to set the angles θ11 and θ21 so that the first protrusion 41 and the second protrusion 42 protrude in parallel directions when viewed from the X direction in a state where they are attached to the anchor bolt B. By adopting the above configuration, it becomes possible to dispose the anchor bolt B at the center of the borehole even when inserting the anchor bolt B into a borehole formed in a direction other than the vertical direction with respect to the ground (a direction inclined from the horizontal or vertical direction).

[0066] The lengths of the first protrusion 41 and the second protrusion 42 are appropriately set according to the diameter of the borehole so that the tip of the anchor bolt B can contact the inside of the borehole when it is inserted into the borehole. For example, a configuration in which the first protrusion 41 and the second protrusion 42 are formed to a length that exceeds the difference between the radius of the anchor bolt B and the radius of the borehole is preferable. The length of the first protrusion 41 and the second protrusion 42 is, for example, 0.45 to 2.30 times the diameter of the circle S3 (FIG. 7). By adopting the above configuration, the first protrusion 41 and the second protrusion 42 can firmly contact the inner wall of the borehole.

[0067] 7 illustrates an angle θ3 formed by a line passing through the center P of circle S3 and the tip of first connecting part 21 and a line passing through the center P of circle S3 and the tip of second connecting part 22 when viewed from the X direction. The tip of first connecting part 21 is the part closest to second connecting part 22 when viewed from the X direction (the part closest to the positive side of the Y direction). Similarly, the tip of second connecting part 22 is the part closest to first connecting part 21 when viewed from the X direction (the part closest to the negative side of the Y direction).

[0068] The angle θ3 is set, for example, in the range of 30° to 180°, and preferably in the range of 45° to 120°. By setting the angle θ3 within the above range, the anchor bolt B can be easily fitted into the space between the first connecting portion 21 and the second connecting portion 22.

[0069] Hereinafter, a bonding method using the anchor bolt B equipped with the fixing member 100 according to the first embodiment will be described.

[0070] Figures 11 and 12 are explanatory diagrams illustrating the process of driving the anchor bolt B with the fixing member 100 attached into a drilled hole H. Figure 11 is a diagram before the anchor bolt B is inserted into the drilled hole H, and Figure 12 is a diagram after the anchor bolt B has been inserted into the drilled hole H. Figures 11 and 12 illustrate the case where two fixing members 100 are attached to the anchor bolt B. Note that the number of fixing members 100 attached to the anchor bolt B is arbitrary.

[0071] As illustrated in Fig. 11, an anchor bolt B is inserted after an adhesive Q is injected into a bore hole H formed in a concrete body W. The adhesive Q injected into the bore hole H is not particularly limited, but examples thereof include polymer organic resins such as epoxy, acrylic, and polyester, or cement-based inorganic adhesives. An amount of adhesive Q sufficient to fill the space between the bore hole H and the inserted anchor bolt B is injected into the bore hole H.

[0072] 12, the anchor bolt B is inserted into the borehole H before the adhesive Q hardens. The anchor bolt B is inserted into the borehole H so that the second protruding portion 42, which is inclined away from the third gripping portion 13, is located on the opening side of the borehole H, and the first protruding portion 41, which is inclined toward the third gripping portion 13, is located on the bottom side of the borehole H. The anchor bolt B is also inserted so that the first protruding portion 41 and the second protruding portion 42 of each fixing member 100 contact the inner wall surface of the borehole H.

[0073] Here, in a method of inserting the anchor bolt B without using the fixing member 100 (hereinafter referred to as "Comparative Example 1"), the anchor bolt B is not fixed before the adhesive hardens and moves within the drilled hole. If the anchor bolt B moves, a problem occurs in that the anchor bolt B is not properly fixed.

[0074] In contrast, in the anchor bolt B equipped with the fixing member 100 of the first embodiment, the first protruding portion 41 and the second protruding portion 42 of the fixing member 100 come into contact with the inner wall surface of the bored hole, so the anchor bolt B is fixed in the bored hole more firmly than in Comparative Example 1. Therefore, the anchor bolt B can be installed in the center of the bored hole.

[0075] Furthermore, a configuration in which the anchor bolt B is temporarily held to the concrete structure by a wire or the like before the adhesive hardens to prevent the anchor bolt B from moving downwards due to its own weight (hereinafter referred to as "Comparative Example 2") has the problem that construction is time-consuming. In contrast, in the first embodiment, the anchor bolt B can be prevented from moving within the borehole simply by attaching the anchor bolt B to the fixing member 100 and inserting it into the borehole. In other words, compared to Comparative Example 2, it is possible to fix the anchor bolt B within the borehole in a simpler method.

[0076] Furthermore, a fixing member (referred to as "Comparative Example 3") is assumed, which has one fixing portion that grips the circumferential direction of anchor bolt B and two arm portions that protrude from both ends of the fixing portion and contact the inner wall surface of the borehole. Comparative Example 3 is, for example, the technology of Patent Document 1. Comparative Example 3 cannot be attached to anchor bolt B with sufficient strength, and there are problems in that the fixing member shifts position when inserted into the borehole or comes off.

[0077] In contrast, the fixing member 100 of the first embodiment includes the first gripping portion 11, the second gripping portion 12, and the third gripping portion 13, the first connecting portion 21 connecting the first gripping portion 11 and the third gripping portion 13, and the second connecting portion 22 connecting the second gripping portion 12 and the third gripping portion 13, and therefore has an advantage over Comparative Example 3 that it can be attached to the anchor bolt B with sufficient strength. Therefore, it is possible to prevent the fixing member 100 from shifting position or coming off when the anchor bolt B is inserted into the drilled hole.

[0078] The effects of the first embodiment described above are achieved not only when the perforations are formed vertically, but also when the perforations are formed along a direction other than the vertical (a direction inclined relative to the horizontal or vertical direction).

[0079] <Second embodiment> A second embodiment of the present invention will be described. Note that, in each of the following exemplary embodiments, for elements whose actions or functions are similar to those of the first embodiment, the reference numerals used in the description of the first embodiment will be used and detailed descriptions of each will be omitted as appropriate.

[0080] 13 is a view of the fixing member 100 according to the second embodiment as viewed from the Z direction. In the first embodiment, a configuration in which the distance D1 between the first gripping portion 11 and the third gripping portion 13 and the distance D2 between the second gripping portion 12 and the third gripping portion 13 are constant in the circumferential direction are illustrated. In the second embodiment, a configuration in which the distance D1 and the distance D2 change in the circumferential direction are illustrated.

[0081] 13, a plane including the reference straight line L0 and a straight line parallel to the X direction (a straight line perpendicular to the reference straight line L0) is denoted as a reference plane F. An example of the reference plane F is the XZ plane.

[0082] 13, in the second embodiment, the distance D1 between the first gripping portion 11 and the third gripping portion 13 becomes continuously smaller from the reference plane F toward the first protruding portion 41. Moreover, the distance D2 between the second gripping portion 12 and the third gripping portion 13 becomes continuously smaller from the reference plane F toward the second protruding portion 42.

[0083] When viewed from the Z direction, the third gripping portion 13 is disposed so as to be inclined between the first gripping portion 11 and the second gripping portion 12. That is, the third gripping portion 13 in the second embodiment extends within a plane inclined with respect to the YZ plane.

[0084] Specifically, the third gripping portion 13 is disposed so that, when viewed from the Z direction, the distance between the first end Tc1 of the third gripping portion 13 and the first end Tb1 of the second gripping portion 12 is smaller than the distance between the first end Tc1 of the third gripping portion 13, and the distance between the second end Tc2 of the third gripping portion 13 and the second end Ta2 of the first gripping portion 11 is smaller than the distance between the second end Tc2 of the third gripping portion 13 and the second end Tb2 of the second gripping portion 12. By disposing the third gripping portion 13 as described above, the distance D1 is set to be continuously smaller from the reference plane F toward the first protruding portion 41 side, and the distance D2 is set to be continuously smaller from the reference plane F toward the second protruding portion 42 side.

[0085] Note that the portion of the gap D1 between the reference plane F and the first connecting portion 21 may be constant along the circumferential direction, or may become continuously smaller from the first connecting portion 21 to the reference plane F. Similarly, the portion of the gap D2 between the reference plane F and the second connecting portion 22 may be constant along the circumferential direction, or may become continuously smaller from the second connecting portion 22 to the reference plane F.

[0086] Fig. 14 is a diagram (corresponding to Fig. 1) of an anchor bolt B to which a fixing member 100 of the second embodiment is attached. As illustrated in Fig. 14, the fixing member 100 can be attached between a node located on the left half circumference and a node located on the right half circumference of the outer circumferential surface of the anchor bolt B.

[0087] The second embodiment also achieves the same effects as the first embodiment. Note that the second embodiment is similar to the first embodiment except that the distance D1 is set to become continuously smaller from the reference plane F toward the first protruding portion 41, and the distance D2 is set to become continuously smaller from the reference plane F toward the second protruding portion 42.

[0088] <Third embodiment>

[0089] 15 is a view of the fixing member 100 according to the third embodiment as viewed from the Z direction. As in the second embodiment, the third embodiment also illustrates a configuration in which the distance D1 between the first gripping portion 11 and the third gripping portion 13 and the distance D2 between the second gripping portion 12 and the third gripping portion 13 change along the circumferential direction.

[0090] 15, in the third embodiment, the distance D1 between the first gripping portion 11 and the third gripping portion 13 increases continuously from the reference plane F toward the first protruding portion 41. The distance D2 between the second gripping portion 12 and the third gripping portion 13 increases continuously from the reference plane F toward the second protruding portion 42.

[0091] When viewed from the Z direction, the third gripping portion 13 is disposed so as to be inclined between the first gripping portion 11 and the second gripping portion 12. That is, the third gripping portion 13 in the second embodiment extends in a plane inclined with respect to the YZ plane.

[0092] Specifically, when viewed from the Z direction, the third gripping portion 13 is disposed so that the distance between the first end Tc1 of the third gripping portion 13 and the first end Tb1 of the second gripping portion 12 exceeds the distance between the first end Tc1 of the third gripping portion 13, and the distance between the second end Tc2 of the third gripping portion 13 and the second end Ta2 of the first gripping portion 11 exceeds the distance between the second end Tc2 of the third gripping portion 13 and the second end Tb2 of the second gripping portion 12. By disposing the third gripping portion 13 as described above, the distance D1 is set to be continuously larger from the reference plane F toward the first protruding portion 41 side, and the distance D2 is set to be continuously larger from the reference plane F toward the second protruding portion 42 side.

[0093] Note that the portion of the distance D1 between the reference plane F and the first connecting portion 21 may be constant along the circumferential direction, or may increase continuously from the first connecting portion 21 to the reference plane F. The portion of the distance D2 between the reference plane F and the second connecting portion 22 may be constant along the circumferential direction, or may increase continuously from the second connecting portion 22 to the reference plane F.

[0094] The third embodiment also achieves the same effects as the first embodiment. Fig. 16 shows an anchor bolt B with a fixing member 100 of the third embodiment attached. As illustrated in Fig. 16, according to the fixing member 100 of the third embodiment in which the distance D1 continuously increases from the reference plane F toward the first protruding portion 41 and the distance D2 continuously increases from the reference plane F toward the second protruding portion 42, it is possible to attach the anchor bolt B so that the third gripping portion 13 does not overlap (ride on) the nodes of the anchor bolt B.

[0095] Here, if the fixing member 100 is attached with the third gripping portion 13 overlapping a node of the anchor bolt B, the forces applied to the first protruding portion 41 and the second protruding portion 42 will no longer be symmetrical, and it may not be possible to properly fix the anchor bolt B. In contrast, the fixing member 100 of the third embodiment has the advantage that the forces applied to the first protruding portion 41 and the second protruding portion 42 can be made symmetrical because the third gripping portion 13 does not overlap a node of the anchor bolt B.

[0096] The second embodiment is similar to the first embodiment except that the distance D1 is set to become continuously smaller from the reference plane F toward the first protrusion 41, and the distance D2 is set to become continuously smaller from the reference plane F toward the second protrusion 42.

[0097] <Fourth embodiment>

[0098] 17 is a view of the fixing member 100 according to the fourth embodiment when viewed from the Z direction. In the first embodiment, the fixing member 100 includes one third gripping portion 13, but in the fourth embodiment, the fixing member 100 includes a plurality of third gripping portions 13.

[0099] The fixing member 100 of the fourth embodiment includes, in addition to the first gripping portion 11, the second gripping portion 12, the first protruding portion 41, the second protruding portion 42, the first connecting portion 21, and the second connecting portion 22, (2N-1) third gripping portions 13, (N-1) third connecting portions 23, and (N-1) fourth connecting portions 24. N is an integer of 2 or more. Note that FIG. 17 illustrates an example in which N is 2.

[0100] The (2N-1) third gripping portions are located between the first gripping portion 11 and the second gripping portion 12 along the X direction. The (2N-1) third gripping portions are arranged at predetermined intervals. In the fourth embodiment, each of the third gripping portions 13 is formed in the same manner as the third gripping portion 13 in the first embodiment.

[0101] When viewed from the X direction, the first end Ta1 of the first gripping portion 11 and the first end Tb1 of the second gripping portion 12 are on the same side as the first end Tc1 of each third gripping portion 13, with respect to the reference line L0 as the center. When viewed from the X direction, the second end Ta2 of the first gripping portion 11 and the second end Tb2 of the second gripping portion 12 are on the same side as the second end Tc2 of each third gripping portion 13, with respect to the reference line L0 as the center.

[0102] The first connecting portion 21 of the fourth embodiment is an element that connects a first end Ta1 of the first gripping portion 11 to a first end Tc1 of a third gripping portion 13 adjacent to the first gripping portion 11 among the (2N-1) third gripping portions 13. The second connecting portion 22 of the fourth embodiment is an element that connects a second end Tb2 of the second gripping portion 12 to a second end Tc2 of a third gripping portion 13 adjacent to the second gripping portion 12 among the (2N-1) third gripping portions 13.

[0103] The third connecting portion 23 is a portion that connects the first ends Tc1 of two adjacent third gripping portions 13. Specifically, the third connecting portion 23 is a portion that extends along the X direction (the axial direction of the anchor bolt B). The third connecting portion 23 of the fourth embodiment is formed in the same shape as the first connecting portion 21.

[0104] The fourth connecting portion 24 is a portion that connects the second ends Tc2 of two adjacent third gripping portions 13. Specifically, the fourth connecting portion 24 is a portion that extends along the X direction (the axial direction of the anchor bolt B). The fourth connecting portion 24 of the fourth embodiment is formed in the same shape as the second connecting portion 22.

[0105] The third connecting portions 23 and the fourth connecting portions 24 are alternately positioned along the X direction. That is, when the first ends Tc1 of two adjacent third gripping portions 13 are connected to each other by the third connecting portion 23, the second ends Tc2 of the two third gripping portions 13 are not connected to each other. Similarly, when the second ends Tc2 of two adjacent third gripping portions 13 are connected to each other by the fourth connecting portion 24, the first ends Tc1 of the two third gripping portions 13 are not connected to each other.

[0106] The fourth embodiment also achieves the same effects as the first embodiment. The third embodiment has a plurality of third gripping portions 13, and therefore has the advantage of being able to be more firmly attached to the anchor bolt B compared to the configuration of the first embodiment. The configuration of the fourth embodiment may be applied to the configurations of the second and third embodiments.

[0107] <Fifth embodiment> Here, it is assumed that a plurality of fixing members 100 (for example, 100) are packed in a bag, and are taken out one by one for use during construction. However, when a plurality of fixing members 100 are packed in a bag, there is a problem that the fixing members 100 get tangled with each other, making it difficult to take out one fixing member 100. In consideration of the above circumstances, the fifth embodiment proposes a packaging form for the fixing members 100.

[0108] In the following description, the portion between the second end Ta2 of the first gripping portion 11 and the first end Tb1 of the second gripping portion 12 in the overall length direction of the fixing member 100 (i.e., the portion excluding the first protruding portion 41 and the second protruding portion 42 in the overall length direction of the fixing member 100) is denoted as the “attachment portion M” for convenience. For example, in the first embodiment, the attachment portion M is the first gripping portion 11, the second gripping portion 12, the third gripping portion 13, the first connecting portion 21, and the second connecting portion 22.

[0109] A packaging form of a plurality of fixing members 100 (hereinafter referred to as a "fixing member set") according to the fifth embodiment will be described. Figs. 18 to 20 are diagrams illustrating a fixing member set 500 according to the fifth embodiment.

[0110] As illustrated in FIGS. 18 and 19, a fixing member set 500 includes a holding member 300 and N fixing members 100 held by the holding member 300 (N is a natural number).

[0111] The holding member 300 is a flat plate-like member. Fig. 18 is a front view of the holding member 300 as viewed from the first surface R1 side (positive side in the Z direction), and Fig. 19 is a rear view of the holding member 300 as viewed from the second surface R2 side (negative side in the Z direction) opposite to the first surface R1. Fig. 20 is a side view (as viewed from the positive side in the X direction) focusing on one fixing member 100.

[0112] The thickness of the holding member 300 is, for example, 0.5 to 1.5 mm. The holding member 300 is typically made of paper (cardboard), but may be made of resin, etc. The size (area) of the holding member 300 can be appropriately changed depending on the number of fixing members 100 to be held.

[0113] N through holes K are formed in the holding member 300. Although Fig. 18 and Fig. 19 show an example in which N is 8, the value of N (i.e., the number of through holes K and fixing members 100) is arbitrary. Note that, for forming the through holes K, a known hole making technique (for example, laser processing or punching) is arbitrarily adopted.

[0114] The shape of each through hole K is not particularly limited as long as the mounting portion M can be fitted therein. In the fifth embodiment, a rectangular through hole K is exemplified. As exemplified in Fig. 20, a portion Ma of the mounting portion M that is on the negative side in the Z direction relative to the first protrusion 41 and the second protrusion 42 when viewed from the X direction is fitted into the through hole K.

[0115] When the portion Ma of the mounting portion M is fitted into the through hole K from the first surface R1 side, the fixing member 100 is held by the holding member 300 in a state in which the first protrusion 41 and the second protrusion 42 are positioned on the opposite side of the holding member 300 to the portion Ma. That is, the portion Ma is positioned on the second surface R2 side of the holding member 300, and the first protrusion 41 and the second protrusion 42 are positioned on the first surface R1 side.

[0116] 18 and 19, the portion Ma of the mounting portion M is fitted into the through hole K, and the first gripping portion 11, the second gripping portion 12, and the third gripping portion 13 abut against the inner surface of the through hole K, so that the fixing member 100 is held by the holding member 300. The first gripping portion 11, the second gripping portion 12, and the third gripping portion 13 abut against the inner surface of the through hole K on both the negative side and the positive side of the Y direction, respectively. Therefore, the fixing member 100 is held by the holding member 300. In other words, the Y direction is a direction parallel to a line segment (J shown in FIG. 7) passing through the first end Tc1 and the second end Tc2 of the third gripping portion 13.

[0117] The length K1 of the through hole K in the Y direction is set so that the first gripping portion 11, the second gripping portion 12, and the third gripping portion 13 can abut against the inside of the through hole K on both the negative side and the positive side in the Y direction, and the fixing member 100 does not shift when the attachment portion M (part Ma) is fitted into the through hole K, and the attachment portion M (part Ma) can be inserted and removed from the through hole K. The length K1 is appropriately set according to the diameter of a virtual circle Sa (shown in FIG. 7) determined by the outer periphery of the third curved portion 131. Specifically, the length K1 is set to be, for example, 0.75 to 0.99 times, and preferably 0.91 to 0.97 times, the diameter of the circle Sa.

[0118] Length K2 of through hole K in the X direction can be any length as long as it exceeds the distance between first gripping portion 11 and second gripping portion 12 when viewed from the Z direction. Length K2 is, for example, about 1.1 to 1.3 times the distance from the surface on the positive side in the X direction of first gripping portion 11 to the surface on the negative side in the X direction of second gripping portion 12 (i.e., the length in the X direction of mounting portion M) in a plan view from the Z direction in FIG.

[0119] Figures 18 and 19 illustrate an example in which each of the N fixing members 100 is fitted into a through hole K so that the first protrusion 41 is located on the positive side of the Y direction with respect to the through hole K, and the second protrusion 42 is located on the negative side of the Y direction.

[0120] As can be understood from the above description, in the fifth embodiment, the mounting portions M are fitted into the through holes K, so that the fixing members 100 are separately held by the holding member 300. This has the advantage that the fixing members 100 can be easily taken out one by one, compared to a configuration in which a plurality of fixing members 100 are packed in a bag.

[0121] In the fixing member set 500 according to the fifth embodiment, N fixing members 100 of different sizes may be held by one holding member 300. In the above configuration, the sizes (K1 and K2) of the through holes K may differ depending on the sizes of the fixing members 100. In addition, the fixing members 100 packed as the fixing member set 500 according to the fifth embodiment are not limited to the fixing members 100 of each of the above-mentioned forms.

[0122] <Modification> Each of the above-mentioned exemplary embodiments may be modified in various ways. Specific modified embodiments that may be applied to each of the above-mentioned embodiments are illustrated below. Two or more embodiments selected from the following examples may be appropriately combined as long as they are not mutually contradictory.

[0123] (1) In each of the above-described embodiments, the curved portions (111, 121, 131) are illustrated as being arc-shaped, but the shape of each curved portion is not limited to being arc-shaped as long as it fits the outer circumferential surface of the anchor bolt B. The shape and size of each curved portion are arbitrary as long as it is capable of gripping the outer circumferential surface of the anchor bolt B to be installed.

[0124] (2) In each of the above-described embodiments, a configuration in which the first gripping portion 11 includes the straight portion 112 has been exemplified, but the straight portion 112 is not essential to the first gripping portion 11. For example, the first curved portion 111 may be formed continuously to the first end Ta1. Furthermore, the first gripping portion 11 may include a curved portion instead of the straight portion 112. Similarly, a configuration in which the second gripping portion 12 includes the straight portion 122 has been exemplified, but the straight portion 122 is not essential to the first gripping portion 11.

[0125] In addition, in each of the above-described embodiments, the third gripping portion 13 includes the first straight portion 132 and the second straight portion 133, but the first straight portion 132 and the second straight portion 133 are not essential to the second gripping portion 12. For example, the third curved portion 131 may be formed continuously to the first end Tc1 and the second end Tc2. Moreover, the third gripping portion 13 may include a curved portion instead of the first straight portion 132 and the second straight portion 133.

[0126] (3) In each of the above-described embodiments, the third gripping portion 13 (FIG. 7) has a shape symmetrical with respect to the reference line L0 when viewed from the X direction, but the configuration of the third gripping portion 13 is not limited to the above example. For example, a configuration in which either the first end Tc1 or the second end Tc2 is close to the portion where the third gripping portion 13 and the reference line L0 intersect may also be adopted.

[0127] (4) In each of the above-described embodiments, a configuration (FIG. 8) has been exemplified in which, when viewed from the X direction, the second end Ta2 of the first gripping portion 11 is closer to a portion U where the reference line L0 and the first gripping portion 11 intersect than the first end Ta1 of the first gripping portion 11. However, for example, a configuration in which the first end Ta1 and the second end Ta2 are on opposite sides of the portion U at the same distance, or a configuration in which the second end Ta2 is farther from the portion U than the first end Ta1, may also be adopted.

[0128] However, according to a configuration in which the second end Ta2 of the first gripping portion 11 is located closer to the portion U where the reference line L0 and the first gripping portion 11 intersect than the first end Ta1 of the first gripping portion 11, the distance between the first end Ta1 and the second end Ta2 is wider compared to a configuration in which the second end Ta2 is located at the same position as the first end Ta1 across the portion U, which has the advantage that it is easier to insert the anchor bolt B.

[0129] (5) In each of the above-described embodiments, a configuration (FIG. 9) has been illustrated in which, when viewed from the X direction, the first end Tb1 of the second gripping portion 12 is closer to a portion U where the reference line L0 and the second gripping portion 12 intersect than the second end Tb2 of the second gripping portion 12. However, for example, a configuration in which the first end Tb1 and the second end Tb2 are on opposite sides of the portion U at the same distance, or a configuration in which the first end Ta1 is farther from the portion U than the second end Ta2, may also be adopted.

[0130] However, according to a configuration in which the first end Tb1 of the second gripping portion 12 is located closer to the portion U where the reference line L0 and the second gripping portion 12 intersect than the second end Tb2 of the second gripping portion 12, the distance between the first end Tb1 and the second end Tb2 is wider compared to a configuration in which the first end Tb1 is located at the same position as the second end Tb2 across the portion U, which has the advantage that it is easier to insert the anchor bolt B.

[0131] Although the configuration has been exemplified in which the positions of the first end Tc1 of the third gripping portion 13 and the first end Ta1 of the first gripping portion 11 are the same when viewed from the X direction, they may differ depending on the shapes of the third gripping portion 13 and the first gripping portion 11. Similarly, the positions of the second end Tc2 of the third gripping portion 13 and the second end Tb2 of the second gripping portion 12 when viewed from the X direction may differ depending on the shapes of the third gripping portion 13 and the second gripping portion 12.

[0132] (6) In each of the above-described embodiments, the first protruding portion 41 and the second protruding portion 42 are linear. However, the first protruding portion 41 and the second protruding portion 42 may include curved portions. The shapes of the first protruding portion 41 and the second protruding portion 42 are arbitrary as long as the first protruding portion 41 and the second protruding portion 42 can contact the inner wall of the borehole when the anchor bolt B with the fixing member 100 attached is inserted into the borehole. Note that the configuration in which the first protruding portion 41 and the second protruding portion 42 are linear has the advantage that the anchor bolt B can be firmly fixed in the borehole, as compared with, for example, a configuration in which the first protruding portion 41 and the second protruding portion 42 are curved.

[0133] Similarly, the angles θ11, θ12, θ21, and θ22 are also arbitrary as long as the first protruding portion 41 and the second protruding portion 42 can come into contact with the inner wall of the hole.

[0134] (7) In each of the above-described embodiments, a configuration in which the first connecting portion 21 and the second connecting portion 22 are curved has been exemplified, but the shapes of the first connecting portion 21 and the second connecting portion 22 are not limited to the above configuration. For example, a configuration in which the first connecting portion 21 and the second connecting portion 22 are linear may also be adopted. The shape of the first connecting portion 21 is arbitrary as long as it is possible to connect the first gripping portion 11 and the third gripping portion 13. Similarly, the shape of the second connecting portion 22 is arbitrary as long as it is possible to connect the second gripping portion 12 and the third gripping portion 13.

[0135] (8) In each of the above-described embodiments, in addition to the first gripping portion 11, the second gripping portion 12, the third gripping portion 13, the first connecting portion 21, the second connecting portion 22, the first protrusion 41, and the second protrusion 42, the fixing member 100 may include other elements.

[0136] (9) In each of the above-described embodiments, the fixing member 100 is attached to a deformed steel bar, but the fixing member 100 of the present invention can be used for various other anchor bolts B.

[0137] (10) In each of the above-described embodiments, the wire diameter of the wire constituting the fixing member 100 is appropriately selected according to the type and size of the anchor bolt B to be attached. For example, when the anchor bolt B is a fully threaded bolt, it is preferable to set the wire diameter of the wire to be equal to or smaller than the thread pitch. The wire diameter of the wire is, for example, 1.0 mm or more and 2.3 mm or less. [Explanation of symbols]

[0138] 11: 1st grip part 12:Second grip part 13:Third grip part 21: 1st connection part 22:Second connection part 23:Third connection part 24: 4th connection part 41: 1st protrusion 42:Second protrusion 100: Fixing member 111: First curved section 112: Straight section 121: Second curved section 122: Straight section 131: Third curved section 132: 1st straight section 133:Second straight line part 300: Retaining member 500: Fixing parts set B: Anchor bolt F:Reference plane H: Perforation L0: Reference straight line Ta1: First end of the first gripping part Ta2: Second end of the first gripping part Tb1: First end of the second gripping part Tb2: Second end of the second gripping part Tc1: First end of the third gripping part Tc2: Second end of the third gripping part W: Concrete structure

Claims

1. A member consisting of a series of wire rods and attached to the outer circumferential surface of an anchor bolt, a first gripping portion including a first curved portion curved along a circumferential direction of the anchor bolt and one end and an other end, the first gripping portion gripping an outer circumferential surface of the anchor bolt; a second gripping portion including a second curved portion curved along the circumferential direction and one end and an other end, the second gripping portion gripping an outer circumferential surface of the anchor bolt; a third gripping portion that is located between the first gripping portion and the second gripping portion along a predetermined arrangement direction, the third curved portion that is curved along the circumferential direction and has one end and the other end, and grips an outer circumferential surface of the anchor bolt; A first connecting portion that connects one end of the first gripping portion and one end of the third gripping portion; a second connecting portion connecting the other end of the second gripping portion and the other end of the third gripping portion; A line segment passing through the other end of the first gripping portion, one end of the third gripping portion, and the other end of the third gripping portion is passed through the midpoint of the line segment, A first protrusion protruding in a direction away from a reference line perpendicular to the arrangement direction; A second protruding portion protruding from one end of the second gripping portion in a direction away from the reference straight line, When viewed from the arrangement direction, one end of the first gripping portion and one end of the second gripping portion are on the same side as one end of the third gripping portion with respect to the reference straight line, the other end of the first gripping portion and the other end of the second gripping portion are on the same side as the other end of the third gripping portion with respect to the reference straight line as a center when viewed from the arrangement direction, When viewed from the arrangement direction, the first connecting portion does not protrude from one end of the first gripping portion and one end of the third gripping portion in a direction away from the reference straight line, When viewed from the arrangement direction, the second connecting portion does not protrude from the other end of the second gripping portion and the other end of the third gripping portion in a direction away from the reference straight line, The anchor bolt is fitted into the space between the first connecting portion and the second connecting portion, and is attached to the outer circumferential surface of the anchor bolt. Fixing material for anchor bolts.

2. A component consisting of a series of wire rods and attached to the outer circumferential surface of an anchor bolt, a first gripping portion including a first curved portion curved along a circumferential direction of the anchor bolt and one end and an other end, the first gripping portion gripping an outer circumferential surface of the anchor bolt; a second gripping portion including a second curved portion curved along the circumferential direction and one end and an other end, the second gripping portion gripping an outer circumferential surface of the anchor bolt; a third gripping portion that is located between the first gripping portion and the second gripping portion along a predetermined arrangement direction, the third curved portion that is curved along the circumferential direction and has one end and the other end, and grips an outer circumferential surface of the anchor bolt; A first connecting portion that connects one end of the first gripping portion and one end of the third gripping portion; a second connecting portion connecting the other end of the second gripping portion and the other end of the third gripping portion; A line segment passing through the other end of the first gripping portion, one end of the third gripping portion, and the other end of the third gripping portion is passed through the midpoint of the line segment, A first protrusion protruding in a direction away from a reference line perpendicular to the arrangement direction; A second protruding portion protruding from one end of the second gripping portion in a direction away from the reference straight line, When viewed from the arrangement direction, one end of the first gripping portion and one end of the second gripping portion are on the same side as one end of the third gripping portion with respect to the reference straight line, the other end of the first gripping portion and the other end of the second gripping portion are on the same side as the other end of the third gripping portion with respect to the reference straight line as a center when viewed from the arrangement direction, The other end of the first gripping portion is located closer to a portion where the reference line and the first gripping portion intersect than the one end of the first gripping portion when viewed from the arrangement direction, One end of the second gripping portion is located closer to a portion where the reference line and the second gripping portion intersect than the other end of the second gripping portion when viewed from the arrangement direction. Fixing material for anchor bolts.

3. The first protrusion and the second protrusion are linear.

3. A fixing member for an anchor bolt according to claim 1 or 2.

4. When viewed from a direction parallel to the reference line, The first protrusion is inclined from the other end of the first gripping portion toward the third gripping portion at an angle greater than 0° and equal to or less than 60°, The second protruding portion is inclined from one end of the second gripping portion toward an opposite side to the third gripping portion at an angle greater than 0° and equal to or less than 60°. The fixing member for an anchor bolt according to claim 3.

5. the first protrusion is inclined at an angle greater than 0° and equal to or less than 90° with respect to the reference line when viewed from the arrangement direction, The second protrusion is inclined at an angle greater than 0° and equal to or less than 90° with respect to the reference line when viewed from the arrangement direction. The fixing member for an anchor bolt according to claim 3.

6. When attached to the anchor bolt, the first protruding portion and the second protruding portion protrude in parallel directions when viewed from the arrangement direction. The fixing member for an anchor bolt according to claim 5.

7. A member consisting of a series of wire rods and attached to the outer peripheral surface of an anchor bolt, a first gripping portion including a first curved portion curved along a circumferential direction of the anchor bolt and one end and an other end, the first gripping portion gripping an outer circumferential surface of the anchor bolt; a second gripping portion including a second curved portion curved along the circumferential direction and one end and an other end, the second gripping portion gripping an outer circumferential surface of the anchor bolt; a third gripping portion that is located between the first gripping portion and the second gripping portion along a predetermined arrangement direction, the third curved portion that is curved along the circumferential direction and has one end and the other end, and grips an outer circumferential surface of the anchor bolt; A first connecting portion that connects one end of the first gripping portion and one end of the third gripping portion; a second connecting portion connecting the other end of the second gripping portion and the other end of the third gripping portion; A line segment passing through the other end of the first gripping portion, one end of the third gripping portion, and the other end of the third gripping portion is passed through the midpoint of the line segment, A first protrusion protruding in a direction away from a reference line perpendicular to the arrangement direction; A second protruding portion protruding from one end of the second gripping portion in a direction away from the reference straight line, When viewed from the arrangement direction, one end of the first gripping portion and one end of the second gripping portion are on the same side as one end of the third gripping portion with respect to the reference straight line, the other end of the first gripping portion and the other end of the second gripping portion are on the same side as the other end of the third gripping portion with respect to the reference straight line as a center when viewed from the arrangement direction, The third curved portion has an arc shape, When viewed from the arrangement direction, an angle formed by a line passing through a center of a circle defined inside the third curved portion and the tip of the first connecting portion and a line passing through the center and the tip of the second connecting portion is equal to or greater than 30° and equal to or less than 180°. Fixing material for anchor bolts.

8. A member consisting of a series of wire rods and attached to the outer peripheral surface of an anchor bolt, a first gripping portion including a first curved portion curved along a circumferential direction of the anchor bolt and one end and an other end, the first gripping portion gripping an outer circumferential surface of the anchor bolt; a second gripping portion including a second curved portion curved along the circumferential direction and one end and an other end, the second gripping portion gripping an outer circumferential surface of the anchor bolt; a third gripping portion that is located between the first gripping portion and the second gripping portion along a predetermined arrangement direction, the third curved portion that is curved along the circumferential direction and has one end and the other end, and grips an outer circumferential surface of the anchor bolt; A first connecting portion that connects one end of the first gripping portion and one end of the third gripping portion; a second connecting portion connecting the other end of the second gripping portion and the other end of the third gripping portion; A line segment passing through the other end of the first gripping portion, one end of the third gripping portion, and the other end of the third gripping portion is passed through the midpoint of the line segment, A first protrusion protruding in a direction away from a reference line perpendicular to the arrangement direction; A second protruding portion protruding from one end of the second gripping portion in a direction away from the reference straight line, When viewed from the arrangement direction, one end of the first gripping portion and one end of the second gripping portion are on the same side as one end of the third gripping portion with respect to the reference straight line, the other end of the first gripping portion and the other end of the second gripping portion are on the same side as the other end of the third gripping portion with respect to the reference straight line as a center when viewed from the arrangement direction, a distance between the first gripping portion and the third gripping portion becomes continuously smaller from a plane including the reference straight line and a straight line parallel to the arrangement direction toward the first protruding portion, The distance between the second gripping portion and the third gripping portion becomes continuously smaller from the plane toward the second protruding portion. Fixing material for anchor bolts.

9. A member consisting of a series of wire rods and attached to the outer circumferential surface of an anchor bolt, a first gripping portion including a first curved portion curved along a circumferential direction of the anchor bolt and one end and an other end, the first gripping portion gripping an outer circumferential surface of the anchor bolt; a second gripping portion including a second curved portion curved along the circumferential direction and one end and an other end, the second gripping portion gripping an outer circumferential surface of the anchor bolt; a third gripping portion that is located between the first gripping portion and the second gripping portion along a predetermined arrangement direction, the third gripping portion including a third curved portion that is curved along the circumferential direction and one end and the other end, and grips an outer circumferential surface of the anchor bolt; and A first connecting portion connecting one end of the first gripping portion and one end of a third gripping portion adjacent to the first gripping portion among the (2N-1) third gripping portions; a second connecting portion connecting the other end of the second gripping portion and the other end of a third gripping portion adjacent to the second gripping portion among the (2N-1) third gripping portions; (N-1) third connecting portions connecting one ends of two adjacent third gripping portions to each other; (N-1) fourth connecting portions connecting the other ends of two adjacent third gripping portions to each other; A line segment passing through the other end of the first gripping portion, one end of the third gripping portion, and the other end of the third gripping portion is passed through the midpoint of the line segment, A first protrusion protruding in a direction away from a reference line perpendicular to the arrangement direction; a second protruding portion protruding from one end of the second gripping portion in a direction away from the reference straight line; Prepare, The third connecting portion and the fourth connecting portion are alternately positioned along the arrangement direction, When viewed from the arrangement direction, one end of the first gripping portion and one end of the second gripping portion are on the same side as one ends of the third gripping portions with respect to the reference straight line as a center, The other end of the first gripping portion and the other end of the second gripping portion are on the same side as the other ends of the third gripping portions with respect to the reference straight line as a center when viewed from the arrangement direction. Fixing material for anchor bolts.

10. A plate-shaped holding member having N through holes formed therein; N anchor bolt fixing members, Each of the anchor bolt fixing members is A member consisting of a series of wire rods and attached to the outer circumferential surface of an anchor bolt, a first gripping portion including a first curved portion curved along a circumferential direction of the anchor bolt and one end and an other end, the first gripping portion gripping an outer circumferential surface of the anchor bolt; a second gripping portion including a second curved portion curved along the circumferential direction and one end and an other end, the second gripping portion gripping an outer circumferential surface of the anchor bolt; a third gripping portion that is located between the first gripping portion and the second gripping portion along a predetermined arrangement direction, the third curved portion that is curved along the circumferential direction and has one end and the other end, and grips an outer circumferential surface of the anchor bolt; A first connecting portion that connects one end of the first gripping portion and one end of the third gripping portion; a second connecting portion connecting the other end of the second gripping portion and the other end of the third gripping portion; A line segment passing through the other end of the first gripping portion, one end of the third gripping portion, and the other end of the third gripping portion is passed through the midpoint of the line segment, A first protrusion protruding in a direction away from a reference line perpendicular to the arrangement direction; A second protruding portion protruding from one end of the second gripping portion in a direction away from the reference straight line, When viewed from the arrangement direction, one end of the first gripping portion and one end of the second gripping portion are on the same side as one end of the third gripping portion with respect to the reference straight line, the other end of the first gripping portion and the other end of the second gripping portion are on the same side as the other end of the third gripping portion with respect to the reference straight line as a center when viewed from the arrangement direction, The N anchor bolt fixing members are held by the holding member by fitting portions of the N anchor bolt fixing members between the other end of the first gripping portion and one end of the second gripping portion in the overall length direction of the N anchor bolt fixing members into the respective N through holes. Fixing parts set.

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