JP4216675B2 - Anchor bolt holder for foundation - Google Patents

Description

  The present invention provides a foundation anchor bolt for embedding a lower end side in a reinforced concrete (RC) foundation and fixing a building column or foundation or large equipment installed in the building on the upper end side. With respect to the anchor anchor bolt holder for connecting to the reinforcing bar in a state of being positioned at a predetermined position, it can be applied to cloth foundations, solid foundations, and other various RC foundation works.

  In RC foundation work, anchor bolts are embedded in the reinforced concrete that will be the foundation, and they are erected on the foundation concrete in a desired horizontal position and height position. As a typical method, there are a method in which anchor bolts are tied to a horizontal portion of a reinforcing bar to be buried (referred to as a horizontal reinforcing bar or a horizontal reinforcing bar) with a binding wire, and a method in which the anchor bolt is inserted into concrete before solidifying after concrete placement.

  However, in the case of the former method of tying with the tie wire, it takes time and work efficiency is poor, there is a risk of misalignment during tying, it is difficult to adjust the position after tying once, After installation, the binding work is difficult due to the space, the work procedure is restricted, and the binding strength varies depending on the level of proficiency of the operator and the quality is not stable.

  Also, in the case of inserting the latter anchor bolt, commonly called “rice planting type”, the properties of concrete change depending on the season and other conditions, so it is difficult to set the timing of insertion, There is a possibility that displacement may occur when hitting the internal rebar, and particularly in concrete with a large slump (softness of construction), there is a problem that the anchor bolt may be tilted by its own weight after being inserted.

In order to solve these problems, for example, as disclosed in Patent Literatures 1 to 3 and the like, a horizontal holding portion connected to a horizontal portion (referred to as a horizontal reinforcing bar or a horizontal reinforcing bar) of a reinforcing rod embedded in a reinforced concrete as a foundation. And the proposal regarding the holder of the anchor bolt for foundations which integrally formed the vertical holding part connected with an anchor bolt is made | formed.
JP 2002-294720 A JP 2001-131990 A JP 2001-107371 A

  In the holder of Patent Document 1, a thin plate is bent to form a horizontal rebar gripping portion on one side and an anchor bolt insertion portion on the other side in an orthogonal state, and the thin plate is elongated between the horizontal rebar gripping portion and the anchor bolt insertion portion. Once the horizontal rebar and the anchor bolt are press-fitted through the opening into the horizontal rebar gripping portion and the anchor bolt insertion portion having a substantially C-shaped cross-section with one end opened. It is a structure in which a thin plate whose diameter is expanded by bending deformation is elastically restored and gripped.

  In the holder of Patent Document 2, one fastener member that tightly attaches horizontal reinforcing bars that are open on the front side and have a substantially U-shaped side surface, and the other fastener that tightly anchors anchor bolts in the same shape Each bracket member has an elastic action and is arranged in an orthogonal state to join the back surface portions of the cylindrical portion to each other and to form a pair of plates on the surface side where the cylindrical portion opens. The mounting piece portion is provided, and after the horizontal rebar and the anchor bolt are press-fitted into the cylindrical portion via the mounting piece portion, the mounting piece portion is screwed and tightly attached.

  In the holder of Patent Document 3, a bolt holding portion for holding an anchor bolt vertically and a reinforcing bar holding portion for holding a reinforcing bar horizontally are formed in a perpendicular state by a synthetic resin material having rigidity and elasticity. At the same time, an interrupting opening that opens sideways is provided in the bolt holding part, and an interruption opening that opens downward is provided in the reinforcing bar holding part, and anchor bolts are provided to the bolt holding part and the reinforcing bar holding part via each interruption opening. It is a structure that press-fits reinforcing bars.

  In addition, reinforcing bars embedded in foundation concrete are arranged with horizontal reinforcing bars, vertical reinforcing bars, truss reinforcing bars, etc., in order to improve construction efficiency and stabilize construction quality. Reinforcing bar units are used, but these reinforcing bar units are set to a certain length in the longitudinal direction in which the horizontal reinforcing bars extend, and corner reinforcing bar units are provided at the corners of the building. Since it was installed, it was polymerized in a state where the joint reinforcing bars overlapped between the ends of the horizontal reinforcing bars, and the horizontal reinforcing bars and the joint reinforcing bars were connected with a binding wire or the like to integrally connect the reinforcing bar units.

However, in the case of the method of tying with a tie wire, it takes time and work efficiency is poor, there is a risk of misalignment during tying, it is difficult to adjust the position after tying once, and a formwork is installed After that, there are issues such as binding work is difficult due to space constraints, the work procedure is restricted, and the binding strength varies depending on the level of proficiency of the operator and the quality is not stable. In order to solve this problem, as disclosed in Patent Document 4 and the like, a reinforcing bar coupler in which a plurality of arc grooves into which superposed reinforcing bars are closely fitted is arranged in parallel has also been proposed.
JP 2000240219 A

  In holders such as Patent Documents 1 to 3, when a horizontal reinforcing bar or an anchor bolt is attached by press-fitting, there is a risk that a pressing force acts on the horizontal reinforcing bar to deform the vertical reinforcing bar via the horizontal reinforcing bar or the horizontal reinforcing bar. It is connected by crimping and can be adjusted in the axial direction, and it can be easily tilted in the direction that the anchor bolt is perpendicular to the horizontal reinforcing bar. If an external force is applied to the bolt or holder, it may cause a position shift. If you notice a position shift in advance, readjustment is necessary. The damage is enormous.

  In particular, the connection structure that grips and grips the outer periphery, so if there is an error in the outer diameter of the anchor bolt or horizontal rebar, or if there is oil adhesion or corrosion, the above phenomenon will be noticeable. Therefore, there is a risk of damaging work efficiency and construction quality, and when the outer diameter of the anchor bolts and horizontal reinforcing bars used are different by one rank, they cannot be shared. It was not desirable to facilitate inventory management.

  In addition, even when a reinforcing bar connector such as Patent Document 4 is used for a joint portion that connects the ends of adjacent horizontal reinforcing bars, the anchor bolt holders of Patent Documents 1 to 3 are used for connection by pressure bonding. In addition, there are cases where anchor bolts are also attached to this joint part, but in that case, anchor bolt holders such as Patent Documents 1 to 3 and reinforcing bar joints such as Patent Document 4 are used. I can't.

  Therefore, the present invention provides an anchor bolt holder that can solve the problems of these conventional techniques, and in particular, the anchor bolt and the horizontal rebar are fitted in a state where the pressing force does not act on the horizontal rebar, After positioning adjustment, it can be firmly connected and held, and can be used when there is an error in the outer dimensions of anchor bolts or horizontal rebars or a difference of one rank. Its main purpose is to enable use as an anchor bolt retainer for joints.

Retainer of the anchor bolt according to the invention is disposed adjacent to the horizontal reinforcing bars, as well as vertically protruding a pair of rebar holding pieces to be fitted from the left and right of the substrate to the horizontal reinforcing bars having a threaded hole, vertically disposed horizontally projecting a pair of anchor holding piece to be fitted to the anchor bolt from above and below the substrate to be, by Rukoto screwed a screw press in the screw hole, the said horizontal reinforcing bars disposed on the cross-shaped anchor One of the bolts is pressed with the set screw, and the other of the horizontal reinforcing bar and the anchor bolt is brought into pressure contact with the pair of reinforcing bar holding pieces or the pair of anchor holding pieces. .

In this anchor bolt holder, the pair of reinforcing bar holding pieces or the pair of anchor holding pieces are respectively formed with V - shaped fitting grooves that open toward the substrate, and either the horizontal reinforcing bar or the anchor bolt is used. or the other it is possible to take the form that is pressed against the respective two points of the fitting groove, the rebar holding piece, a mode of forming such capable of fitting a plurality of horizontal reinforcing bars, which are arranged parallel to the vertical Can be taken.

  With the anchor bolt holder according to the present invention, when mounting to a horizontal reinforcing bar or anchor bolt, it can be easily mounted in a fitted state without applying excessive pressing force to the reinforcing bar unit, and the horizontal position of the anchor bolt The vertical (height) position can be adjusted easily and accurately, and after installation, the anchor bolt is in pressure contact with the horizontal rebar or joint rebar. Can be held.

  In addition, unlike the connection structure in which the outer periphery of the conventional technique is crimped and gripped, the anchor structure is a connection structure in which the anchor bolt in the fitting groove and the horizontal rebar are pressed in a crossed state by tightening the push screw after fitting. Even if there is an error (variation) in the outer diameter of the bolt or horizontal rebar, adhesion of oil, corrosion, etc., the expected performance can be ensured, and even if the outer diameter is different by one rank It is possible to reduce the cost of the holder and facilitate inventory management by sharing.

  In addition, by using a double wire retainer formed in the same configuration, it is possible to easily and surely connect the joint portion connecting the ends of adjacent horizontal reinforcing bars, and to connect and hold the anchor bolt to the joint portion. Since this double wire retainer can be used in the same way as the single wire retainer at locations other than the joint part, the cost of the retainer can be reduced by using it in common. And inventory management can be facilitated.

  The anchor bolt retainer of the present invention will be described in detail with reference to the accompanying drawings showing a preferred embodiment to which the present invention is applied. FIG. 1 shows the retainer of the present invention as a fabric foundation which is one of the objects to be implemented. The embodiment which applied is shown, The cloth foundation 1 is comprised by the footing part 1A provided on the foundation ground, and the standup | rising part 1B provided on the footing part 1A, and in the footing part 1A of the cloth foundation 1 is shown. A reinforcing bar unit 2 is embedded in which a reinforcing bar frame 2A for footing formed by a horizontal reinforcing bar frame and a rising reinforcing bar frame 2B formed by a vertical reinforcing bar frame are integrated.

  For the construction of the fabric foundation 1, the reinforcing bar unit 2 is installed via a spacer (not shown) on the foundation ground on which a throwing-off container is placed, and a holding member (not shown) is provided on both sides of the reinforcing bar unit 2 (one is omitted). ) Is supported, and a width stop plate 4 is installed at the upper end between the mold frames 3 to stop the width, and then concrete is placed in the mold 3. The placement method includes a case where the footing portion 1A and the rising portion 1B are individually placed, and a case where the footing portion 1A and the rising portion 1B are simultaneously placed.

  In addition, before placing concrete, the anchor bars 7 are vertically connected to the horizontal reinforcing bars 5 on the upper end side of the rising reinforcing bar frame 2 </ b> B using the holder 6, and the horizontal reinforcing bars 5 are The horizontal position of the anchor bolt 7 along the vertical direction and the vertical (height) position of the anchor bolt 7 protruding from the upper end of the rising portion 1B where the concrete is placed are adjusted. The joint reinforcing bars 8 are overlapped between the ends of the horizontal reinforcing bars 5A and 5B, and the horizontal reinforcing bars 5A and 5B and the joint reinforcing bars 8 can be integrally connected using the holder 9.

  As will be described in detail later, the holding tool includes a single wire holding tool that fits one reinforcing bar and a multi-wire holding tool that fits two or more reinforcing bars. In the embodiment of FIG. In addition, a multi-line holding tool is used for the joint 9 and the anchor bolt 7 is connected to a place where the anchor bolt 7 is required at the joint, and the anchor bolt 7 is used for a place where the anchor bolt 7 is not needed. Although the dummy rebar 10 is connected instead of 7, the holder 9 can be used instead of the holder 6 in a state where one rebar of the double-line holder is left open, and a common form can be adopted.

  2 and 3 show the single wire holder 6A according to the first embodiment, in which the reinforcing bar holding pieces 12 (12A, 12B) are bent in a facing state from both the left and right sides of the substrate 11, From the upper side of the substrate 11, the upper side anchor holding pieces 13 (13 </ b> A, 13 </ b> B) are horizontally projected in a parallel state, and from the lower side of the substrate 11, the lower side anchor holding pieces 14 are horizontally projected. .

  In addition, a fitting groove 15 for fitting the horizontal reinforcing bar 5 is formed on the tip side of the reinforcing bar holding piece 12 (12A, 12B) so as to be formed in a cutout shape that opens downward, and the anchor holding piece 13 (13A, 13B). ) Is provided with a through hole 16 for fitting the anchor bolt 7, and the anchor holding piece 14 is provided with a fitting groove 17 for fitting the anchor bolt 7 by forming a notch opening forward. The substrate 11 has a screw hole 19 into which the push screw 18 is screwed.

  In the state where the anchor bolt 7 is fitted in the opening 16 and the fitting groove 17, the holding tool 6 </ b> A is fitted with the horizontal rebar 5 from above in the fitting groove 15 and is screwed into the screw hole 19. When the bolt is tightened, the tip of the push screw 18 presses the anchor bolt 7 toward the horizontal rebar 5, so that the front side of the horizontal rebar 5 is in pressure contact with the front side of the fitting groove 15, and the rear side is on the front side of the anchor bolt 7. It is clamped in a manner of pressure contact.

  Therefore, in the state where the screw screw 18 is loosely engaged with the screw hole 19, the horizontal position of the anchor bolt 7 along the horizontal rebar 5 and the vertical (height) position of the anchor bolt 7 are adjusted, and then the push screw 18 is moved. By fastening, the anchor bolt 7 can be connected and held to the horizontal rebar 5 via the holder 6A as shown in FIG.

  In particular, the front side of the fitting groove 15 to which the horizontal reinforcing bar 5 is pressed and the rear side of the fitting groove 17 to which the anchor bolt 7 is pressed are formed in a V-groove shape so that it is strong in a three-point support state. As well as being connected and retained, it can be easily adapted to the size of the outer dimensions, and the holder 6A can be easily mounted from above, so that the work is performed with the molds 3 on both sides disposed. It is possible, and work with different occupations can be separated efficiently and efficiently.

  Next, FIG. 5 shows the holder 9A for double wires according to the first embodiment. The basic form is the same as the holder 6A for single wires, but a plurality of rebars at the joint portion are used. In the embodiment shown in the figure, the horizontal reinforcing bar 5 and the joint reinforcing bar 8 that are overlapped are clamped and the anchor bolts 7 are connected and held to the reinforcing bars 5 and 8. I can do it.

  The holding tool 9A protrudes from the left and right sides of the board 11 with reinforcing bar holding pieces 12 (12A, 12B) in which fitting grooves 15 for the horizontal reinforcing bar 5 and the joint reinforcing bar 8 are formed. An anchor holding piece 13 (13A, 13B) that forms the opening 16 is projected, and an anchor holding piece 14 having a fitting groove 17 for the anchor bolt 7 is projected from below the substrate 11.

  Further, on the front side of the fitting groove 15 where the horizontal reinforcing bar 5 and the joint reinforcing bar 8 are pressure-contacted, a reinforcing bar pressure-contact surface formed by connecting V grooves vertically and forming a W-shaped groove is provided, and the anchor bolt 7 is pressed. An anchor bolt pressure contact surface formed in a V-groove shape is provided on the rear side of the fitting groove 17 to be formed, and a screw hole 19 for screwing a push screw 18 to the substrate 11 to press the anchor bolt 7 at two upper and lower positions. , 19 are provided.

  As in the case of the holder 6 </ b> A, the holder 9 </ b> A fits the horizontal rebar 5 and the joint rebar 8 from above into the fitting groove 15 in a state where the anchor bolt 7 is fitted to the through hole 16 and the fitting groove 17. The horizontal and vertical positioning adjustment of the anchor bolt 7 is performed in a state where the push screw 18 screwed into the screw hole 19 is loosened, and then the push screw 18 is tightened to fix the anchor bolt 7 to each of the reinforcing bars 5 and 8. Can be connected and held.

  In addition, when the holder 9A is used as a reinforcing bar connector for a joint portion that does not require the anchor bolt 7, the adjacent reinforcing bar unit 2 using a short dummy reinforcing bar 10 instead of the anchor bolt 7 is used. Can be connected to each other, and when used in place of the holding portion 6A in place of the joint portion, one V groove portion of the W groove formed in the fitting groove 15 is used in an open state. be able to.

  Next, FIGS. 6 and 7 show a single wire holder 6B according to the second embodiment, in which the first reinforcing bar holding pieces 22 (22A, 22B) are moved up and down from one of the left and right sides of the substrate 21. FIG. The second reinforcing bar holding piece 23 is formed to protrude horizontally from the other side, and the anchor holding pieces 24 (24A, 24B) are formed to protrude horizontally from the upper and lower sides of the substrate 21. is doing.

  Further, a through hole 25 for fitting the horizontal reinforcing bar 5 is provided between the first reinforcing bar holding pieces 22 (22A, 22B), and the second reinforcing bar holding piece 23 is formed in a notch shape that opens forward. Then, a fitting groove 26 for fitting the horizontal reinforcing bar 5 is provided, and the anchor holding piece 24 (24A, 24B) has a tip portion protruding in the L shape toward the first reinforcing bar holding piece 22 side, and a tip portion. A fitting groove 27 for fitting the anchor bolt 7 is provided inside, and a screw hole 29 for screwing a push screw 28 is formed in the substrate 21.

  In the state where the horizontal reinforcing bar 5 is fitted in the through hole 25 and the fitting groove 26, the holding tool 6 </ b> B is fitted with the anchor bolt 7 in the fitting grooves 27, 27 and screwed into the screw hole 29. Is tightened in such a manner that the tip of the push screw 28 presses the horizontal rebar 5 and the anchor bolt 7 pressed by the horizontal rebar 5 is pressed against the bent portion of the anchor holding piece 24.

  Therefore, in a state where the screw screw 28 is loosely engaged with the screw hole 29, the horizontal position of the anchor bolt 7 along the horizontal rebar 5 and the vertical (height) position of the anchor bolt 7 are adjusted, and then the push screw 28 is moved. By tightening, the anchor bolt 7 can be connected and held to the horizontal reinforcing bar 5 via the holder 6B.

  Next, FIG. 8 shows a holding tool 9B for double wires according to the second embodiment. The basic form is the same as that of the holding tool 6B for single wires, but a plurality of reinforcing bars in the joint portion are used. In the embodiment shown in the figure, the horizontal reinforcing bar 5 and the joint reinforcing bar 8 that are overlapped are clamped and the anchor bolts 7 are connected and held to the reinforcing bars 5 and 8. I can do it.

  That is, the retainer 9B is provided with a reinforcing bar pressure contact surface formed in a W groove shape by connecting V grooves vertically to the front side of the fitting groove 26 where the horizontal reinforcing bar 5 and the joint reinforcing bar 8 are pressed. The fitting groove 27 into which the bolt 7 is fitted is provided with an anchor bolt pressure contact surface formed in a V-groove shape, and a screw hole for screwing the anchor bolt 7 at two places on the base plate 21 by screwing a push screw 28. 29, 29 are provided.

  As in the case of the holder 6B, the holder 9B is fitted with the anchor bolt 7 in the fitting grooves 27 and 27 in a state where the horizontal reinforcing bar 5 is fitted in the through hole 25 and the fitting groove 26, and the screw hole 29 is fitted. After adjusting the horizontal and vertical positioning of the anchor bolt 7 in the loosened state, the anchor screw 7 is tightened to connect and hold the anchor bolt 7 to each of the reinforcing bars 5 and 8. be able to.

  Next, FIGS. 9 and 10 show a single wire holder 6C according to the third embodiment, in which the reinforcing bar holding pieces 32 (32A, 32B) are horizontally placed in an opposed state from both the left and right sides of the substrate 31. FIG. In addition to forming the protrusions, the anchor holding pieces 33 (33A, 33B) are formed to protrude horizontally from above and below the substrate 31, and the reinforcing bar holding pieces 32 (32A, 32B) are formed in a notch shape that opens forward. Then, a fitting groove 34 for fitting the horizontal rebar 5 is provided, a fitting hole 35 for fitting the anchor bolt 7 is provided in the anchor holding piece 33 (33A, 33B), and a push screw 36 is provided in the substrate 31. Are threaded.

  The holding tool 6 </ b> C is a push screw in which the anchor bolt 7 is fitted in the fitting holes 35, 35 in a state where the horizontal rebar 5 is fitted in the fitting grooves 34, 34 and screwed into the screw hole 37. After the horizontal and vertical positioning adjustment of the anchor bolt 7 is performed in a state where the bolt 36 is loosened, the horizontal screw 5 is pressed by tightening the push screw 36, and the anchor bolt 7 is brought into pressure contact with the fitting bolt 35. The anchor bolt 7 can be connected and held by being pressed against a V-groove-shaped pressure contact surface formed on the front side of the bolt.

  Next, FIG. 11 shows the holder 9C for double wires according to the third embodiment, and the basic form is the same as that of the holder 6C for single wires, but a plurality of reinforcing bars at the joint portion are arranged. In the embodiment shown in the figure, the horizontal reinforcing bar 5 and the joint reinforcing bar 8 that are overlapped are clamped and the anchor bolts 7 are connected and held to the reinforcing bars 5 and 8. I can do it.

  That is, the retainer 9C is provided with a reinforcing bar pressure contact surface formed in a W groove shape by connecting V grooves vertically to the front side of the fitting groove 34 where the horizontal reinforcing bar 5 and the joint reinforcing bar 8 are pressed. The fitting hole 35 into which the bolt 7 is inserted is provided with an anchor bolt pressure contact surface formed in a V-groove shape, and a screw hole 37 for screwing the anchor bolt 7 to the base plate 31 to press the anchor bolt 7 in two places. , 37 are provided.

  As in the case of the holder 6C, the holder 9C is fitted with the anchor bolt 7 inserted in the fitting holes 35, 35 in a state where the horizontal rebar 5 is fitted in the fitting grooves 34, 34, and screw holes. After the horizontal and vertical positioning adjustment of the anchor bolt 7 is performed in a state where the push screw 36 screwed to 37 is loosened, when the horizontal rebar 5 is pressed by tightening the push screw 36, the anchor bolt 7 is pressed against the anchor bolt 7. The anchor bolt 7 can be press-contacted to a V-groove-shaped press-contact surface formed on the front side of the fitting hole 35, and the anchor bolt 7 can be connected and held.

  As in the case of the holder 9A, the holder 9B or the holder 9C is used in place of the anchor bolt 7 when used simply as a reinforcing bar connector for a joint portion that does not require the anchor bolt 7. The short dummy rebar 10 can be used to connect the adjacent rebar units 2 and 2, and when used instead of the holder 6 </ b> B or 9 </ b> C at a place other than the joint portion, the fitting groove 26 or one of the W grooves formed in the fitting groove 34 can be used.

  Each of the holders according to the above embodiments has a flat plate shape when unfolded. For example, after punching a metal plate into a predetermined shape, the holder can be easily manufactured and the structure is also simple. Since there is no need for work such as welding, it can be provided at low cost by mass production.

  In the illustrated embodiment, the fabric foundation has been described as an implementation target. However, horizontal foundations embedded in reinforced concrete (RC) foundations, such as foundations for installing solid foundations or large equipment in buildings, other than cloth foundations, have been described. It can be applied to various RC foundation works that connect and hold anchor bolts to the reinforcing bars, and the same effects can be exhibited.

The principal part perspective view of embodiment which applied the holder of this invention to the fabric foundation which is one of implementation object is shown. It is the holder 6A for single wires by 1st Embodiment, Comprising: The perspective view seen from the front side is shown. It is the holder 6A for single wires by 1st Embodiment, Comprising: The perspective view seen from the back side is shown. The anchor bolt holding structure using the single wire holder 6A, (a) shows a side view and (b) shows a bottom view. It is the holder 9A for double wires by 1st Embodiment, Comprising: The perspective view seen from the front side is shown. It is the holder 6B for single wires by 2nd Embodiment, Comprising: The perspective view seen from the front side is shown. It is the holder 6B for single wires by 2nd Embodiment, Comprising: The perspective view seen from the back side is shown. It is the holder 9B for double wires by 2nd Embodiment, Comprising: The perspective view seen from the front side is shown. It is the holder 6C for single wires by 3rd Embodiment, Comprising: The perspective view seen from the front side is shown. It is the holder 6C for single wires by 3rd Embodiment, Comprising: The perspective view seen from the back surface side is shown. It is the holder 9C for double wires by 3rd Embodiment, Comprising: The perspective view seen from the front side is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cloth foundation 1A Footing part 1B Standing part 2 Reinforcing bar unit 2A Footing reinforcing bar frame 2B Standing reinforcing bar frame 3 Mold frame 4 Width stop plate 5, 5A, 5B Horizontal reinforcing bar 6, 6A, 6B, 6C (For single wire) Anchor bolt 8 Joint rebar 9, 9A, 9B, 9C (for double wires) Holder 10 Dummy rebar 11, 21, 31 Substrate 12, 12A, 12B, 22, 22A, 22B, 23, 32, 32A, 32B Rebar holding piece 13 , 13A, 13B, 14, 24, 24A, 24B, 33, 33A, 33B Anchor holding pieces 15, 17, 26, 27, 34 Fitting grooves 16, 25 Through holes 18, 28, 36 Push screws 19, 29, 37 Screw hole 35 Mating hole

Claims (3)

Disposed adjacent to the horizontal reinforcing bars, thereby protrudes perpendicularly a pair of rebar holding pieces to be fitted from the left and right of the substrate to the horizontal reinforcing bars having a threaded hole, a pair of fitting the anchor bolt to be arranged vertically the anchor holding piece horizontally projecting formation from the top and bottom of the substrate, wherein the Rukoto are screwed set screw into the screw hole, press either the of said horizontal reinforcing bars disposed on the cross-shaped and the anchor bolt screw The anchor bolt retainer is characterized in that either one of the horizontal reinforcing bar and the anchor bolt is pressed against the pair of reinforcing bar holding pieces or the pair of anchor holding pieces . V - shaped fitting grooves that open toward the substrate are formed in the pair of reinforcing bar holding pieces or the pair of anchor holding pieces, respectively , and either the horizontal reinforcing bar or the anchor bolt is connected to the fitting groove. The anchor bolt holder according to claim 1, wherein the anchor bolt is press-contacted to each of the two points . The rebar holding piece, characterized by being formed as capable of fitting a plurality of horizontal reinforcing bars disposed in parallel vertically, the holder of the anchor bolt according to claim 1 or 2.

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