JP5027184B2 - Fasteners, mounting method for attachment to concrete base material, fastening part structure - Google Patents

Description

  According to the present invention, a base material through hole that penetrates a wall-like or columnar concrete base material in a horizontal direction and a bolt insertion hole that penetrates an attachment attached to the concrete base material are passed through a communication through hole. A fastener that is provided with bolts (penetrating bolts) arranged through the concrete base material and the attachment, and is used for attaching the attachment to the concrete base material, and an attachment to the concrete base material using the fastener And an attachment construction method of an attachment to a concrete base material that integrates a fastening portion using a filler and a fastening portion structure.

For example, when attaching fixed objects such as caps and sound insulation walls to concrete railings of railways and roads, a method of fastening and fixing (fixing of fixed objects) using through bolts that penetrate concrete railings is widely adopted. (For example, Patent Documents 1 and 2. Non-Patent Document 1).
In this construction method, as shown in FIGS. 11 (a), (b), and FIG. 12, it is formed on a through hole 111 that extends horizontally in the concrete rail 110 and a fixed object 120 that is fixed to the concrete rail 110. The shaft 131 of the through bolt 130 is passed through the bolt insertion hole 121, and the tip 131 of the shaft 131 of the through bolt 130 protrudes from the fixed object 120 (opposite of the head 132 at one end of the shaft 131). The fastened object 120 is fastened and fixed to the concrete rail 110 by tightening the nut 140 screwed to the shaft 131 of the through bolt 130 from the end on the side. The fixed object 120 shown in FIGS. 11A, 11B, and 12 is specifically a cap that is a long metal member having a U-shaped cross section, and the bolt insertion hole 121 is a top of the cap. A pair of side plate portions 120b provided so as to extend in parallel from both sides of the plate portion 120a are respectively penetrated.

  Moreover, in this construction method, as shown in FIGS. 11A and 11B, in order to integrate the concrete rail 110 and an attachment (fixed object 120) such as a steel plate, the through hole 111 is formed. In addition, it is widely performed that the communication through hole 150 formed by communicating the bolt insertion hole 121 is embedded by injection of a curable liquid filler 160. As the filler 160, for example, a liquid resin material for forming a resin portion such as an epoxy resin by curing after injection is used.

As shown in FIGS. 11 (a) and 11 (b), embedding of the communication through hole 150 with the filler 160 is conventionally performed before the fixed object 120 is fastened and fixed to the concrete rail 110 by tightening the nut 140. A method of filling the communication through hole 150 with the filler 160 by injection from a pipe 170 (filler injection pipe) inserted into the communication through hole 150 is employed. Then, after the filling of the filler 160 into the communication through hole 150 (filling process) is completed, the work (fastening work) for fastening and fixing the fixed object 120 to the concrete rail 110 is performed by tightening the nut 140. When this fastening operation is completed, both ends of the communication through hole 150 are closed by the head 132 of the through bolt 130 and the nut 140.
The filling operation of filling the communication through hole 150 with the filler 160 is performed by closing one end of the communication through hole 150 with the head 132 of the through bolt 130 and opposite to the head 132 of the through bolt 130 of the communication through hole 150. The end portion on the side is opened, and the piping 170 is inserted into the communication through hole 150 from the opened end portion to fill the filler 160.

JP 2001-355209 A JP 2004-116139 A

"Twin plate construction method (3) Structure, construction method / b section details", [online], Showbond Construction Co., Ltd. HP, [searched January 26, 2009], Internet <URL: http: //www.sho -bond.co.jp/html/24-bk.html>

However, in the above-described construction method, it is necessary to perform the filling step before the fastening and fixing work, and after the fastening work is completed, the filling material 160 tends to be insufficiently filled particularly in the vicinity of the nut 140. For this reason, there is a problem that it is not easy to fill the vicinity of the nut 140 with the filler 160 in the communication through hole 150 without a gap. On the other hand, there is a problem that an air reservoir 151 is likely to be generated in the vicinity of the head 132 of the through bolt 130, and an unfilled portion of the filler 160 is likely to occur. Further, when the piping 170 for injecting the filler 160 is pulled out from the communication through hole 150, there is a problem that the bubbles 152 are easily mixed into the filler 160 in the communication through hole 150. When bubbles of large size are mixed, the bubbles repeatedly expand and contract due to the temperature cycle, causing deterioration of the filler 160 (filler after curing) and shortening the service life. There is a demand to suppress the mixing of bubbles as much as possible.
In addition, the filler is likely to enter the threaded portion of the thread portion at the tip end portion protruding from the communication through hole 150 of the shaft portion 131 of the through bolt 130, which obstructs the tightening operation of the nut 140 and reduces the workability of the tightening operation. There was dissatisfaction to do.

  In view of the above problems, the present invention provides a communication through hole formed by communicating a base material through hole penetrating a concrete base material in a horizontal direction and a bolt insertion hole penetrating through an attachment attached to the concrete base material. It is possible to fill the filler into the concrete base material after completion of the work of attaching the attachment to the concrete base material, and it is also possible to easily fill the entire interior of the communication through hole with the filler. It is possible to easily suppress air accumulation and air bubbles in the material, and to secure the workability of the fastening work by tightening the nuts securely, the mounting method of the attachment to the concrete base material, the fastening part structure The purpose is to provide.

In order to solve the above problems, the present invention provides the following configuration.
The first invention is a communication through hole in which a base material through hole penetrating a wall-shaped or columnar concrete base material in a horizontal direction and a bolt insertion hole penetrating through an attachment attached to the concrete base material are communicated. A bolt that passes through the concrete base material and the attachment, a nut that is screwed into a portion of the bolt that protrudes from the communication through hole, and a bolt that protrudes from both ends of the communication through hole. And a washer that is extrapolated to each of the parts and pressed against the concrete base material and the attachment by the tightening force of the nut, and the bolt is for injecting a liquid filler into the communication through-hole. An injection hole is formed, and the injection hole opens at a portion protruding from the communication through hole when the injection hole is inserted into the communication through hole of the bolt; and And a filler outlet disposed in the communication through-hole when the bolt is inserted into the communication through-hole, and the washer has a radius of the washer on one side. A groove extending along the direction and opening in the outer peripheral surface of the washer, and an air vent groove for discharging air in the communication through-hole as the filler is injected into the communication through-hole, or the air The fastener is characterized in that a slit extending along the radial direction of the washer is formed.
According to a second aspect of the present invention, a portion that protrudes from the communication through hole when the bolt is inserted into the communication through hole is an opening of the injection hole in the outer peripheral surface of the central portion in the axial direction of the bolt. There is provided a fastener according to a first invention, wherein a marking indicating a position of a material outlet in a direction around an axis of the bolt is provided.
A third invention is characterized in that the bolt has a head at one end of the shaft portion, and the injection hole has a filler inlet opening at the head of the bolt or the tip of the shaft portion. A fastener according to the first or second invention is provided.
According to a fourth aspect of the present invention, there is provided the fastener according to the first or second aspect of the present invention, wherein the bolt is formed in a rod shape over the entire length in the longitudinal direction, and includes a plurality of the nuts.
5th invention is the attachment construction method performed in order to plan the attachment of the attachment to a wall-like or columnar concrete base material, and the integration of a fastening part using the fastener of the invention of any one of 1-4. The bolt is inserted into a communication through hole in which a base material through hole penetrating the concrete base material in a horizontal direction and a bolt insertion hole penetrating through an attachment attached to the concrete base material are communicated. The filler outlet which is the opening of the injection hole on the outer peripheral surface of the bolt is disposed in the communication through hole, and the nut of the bolt screwed to the bolt is tightened to tighten the nut of the communication through hole of the bolt. The concrete base material and the attachment are fastened between the washers that have been extrapolated to the portions protruding from both ends, and the bolt is connected to the filler outlet at the lower part of the bolt. A fastening process in which the washer is stationary in a direction in which the opening of the air vent groove or slit on the outer periphery is positioned on the top of the washer, and after this fastening process, the bolt is opened at one end in the axial direction of the bolt. And a filler injection step of injecting the filler into the communication through hole from the filler inlet which is an opening of the injection hole. Provide a method for mounting objects.
In a sixth aspect of the present invention, in the fastening step, a sealing material is interposed between the concrete base material and the attachment, and the communication through hole is formed between the base material through hole of the concrete base material and the attachment. The nut is tightened in a state in which a communication portion surrounded by the sealing material and communicating with the base material through hole and the bolt through hole is secured between the bolt insertion hole and the bolt through hole. The attachment construction method of the attachment to the concrete base material of 5th invention characterized by the above is provided.
7th invention is the structure of the fastening part which fastened the attachment to the wall-shaped or columnar concrete base material using the fastener of any one of 1st-4th invention, Comprising: The said concrete base material is horizontal direction The bolt is inserted into a communication through hole formed by communicating a base material through hole penetrating through the bolt and a bolt insertion hole penetrating through an attachment attached to the concrete base material, and the injection hole on the outer peripheral surface of the bolt Filler outlets, which are openings, are arranged in the communication through holes, and are extrapolated to portions of the bolts protruding from both ends of the communication through holes by tightening the nuts screwed to the bolts. The concrete base material and the attachment are fastened between the washers, the bolt has a direction in which the filler outlet is located below the bolt, and the washer is on the outer periphery. Serial opening of the air vent grooves or the slits provide a fastening portion structure characterized in that provided in a direction which is located on top of the washer.
The eighth invention further provides a fastening portion structure according to the seventh invention, further comprising a filler that embeds the communication through hole.

In the fastener according to the present invention, an injection hole for injecting a liquid filler into a communication through hole in which a through hole of a concrete base material and a bolt insertion hole of an attachment are communicated with each other has an axial center of the bolt. A bolt extending from one end in the direction of the bolt so as to open on the outer peripheral surface of the central portion in the axial center direction of the bolt, and discharging the air in the communication through-hole as the filler is injected into the communication through-hole In this configuration, a pair of washers in which an air vent groove is formed and a nut are provided.
For this reason, according to the present invention, it is possible to fill the communication through hole with the filler by using the bolt injection hole after the attachment work for attaching the attachment to the concrete base material is completed. In addition, the air in the communication through-hole accompanying the injection of the filler into the communication through-hole can be discharged by the air vent groove of the washer. For this reason, it is possible to easily embed the entire interior of the communication through hole with the filler. In addition, the occurrence of air accumulation in the filler and the mixing of bubbles can be easily suppressed as compared with the conventional technique using the piping for filling the filler.
Further, as in the prior art, the filler enters into the groove of the thread portion of the tip side portion protruding from the communication through hole of the shaft portion of the through bolt, which obstructs the nut tightening operation and reduces the workability of the tightening operation. Therefore, good workability can be secured for the tightening operation of the nut.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining the attachment construction method of 1st Embodiment based on this invention, the attachment construction method of the attachment to a concrete base material using this, and a fastening part structure, (a) is a concrete rail using a fastener. Sectional drawing which shows the state which fastened and fixed the cap to (a), The through hole of the concrete rail and the bolt insertion hole of the attachment (cap) are connected via the bolt injection hole of the fastener in (a). It is sectional drawing which shows the state which injected and filled the liquid filler in the communicating through-hole formed. It is the figure which decomposed | disassembled and showed the fastener of one Embodiment which concerns on this invention. It is a figure explaining the volt | bolt of the fastener of FIG. 2, (a) is a front view, (b) is a figure which shows the structure seen from the front end side of the axial part, (c) is a deformation | transformation of the filler inlet of an injection hole. It is a figure which shows an example. It is a figure explaining the washer of the fastener of FIG. 2, Comprising: (a) is the side view seen from the opening part side of the air bleeding groove in the outer periphery of the said washer, (b) is a front view, (c) is FIG. It is an AA line cross-sectional view of (b). FIG. 3 is a front sectional view showing a state in which a cap that covers the upper end portion of the fastener in FIG. 2, a method for attaching an attachment to a concrete base material using the fastener, and a fastening portion structure is fixed to a concrete rail. FIG. 3 is a diagram showing a state in which a support is fixedly installed on a concrete rail by the fastening device of FIG. 2, an attachment construction method of an attachment to a concrete base material using the fastener, and a fastening portion structure, (a) is a front sectional view; (B) is a plane sectional view showing the structure near the fastener (fastening portion). It is sectional drawing which shows the state which fastened the wall parts of concrete products (concrete wall body) by the attachment construction method of the fastener of FIG. 2 and the attachment to a concrete base material using this (fastening construction, installation construction). . It is a figure explaining the other aspect of the volt | bolt of the fastener which concerns on this invention, Comprising: (a) is a front view, (b) is the side view seen from the head side. It is a figure explaining the installation construction method of the attachment to the concrete base material using this, and the fastening part structure which employ | adopted what was comprised by the rod shape over the longitudinal direction full length as a volt | bolt, (a) Is a sectional view showing a state in which a cap is fastened and fixed to a concrete rail using a fastener, and (b) is a through hole of a concrete base material and a bolt of an attachment through an injection hole of a bolt of the fastener in (a). It is sectional drawing which shows the state which injected and filled the liquid filler in the communicating through-hole by which an insertion hole is connected. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining the cutting washer which is one Embodiment of the washer which concerns on this invention, Comprising: (a) is the side view seen from the opening part side of the slit in the outer periphery of the said cutting washer, (b) is a front view, ( c) is a cross-sectional view taken along the line B-B in FIG. It is a figure explaining the construction method which fixes a cap to a concrete rail using the fastener of the prior art example, and (a) is a through hole of a concrete rail of a concrete rail and a bolt insertion hole of a fixed object (cap). A state in which a pipe for injecting a liquid filler is inserted into a communication through-hole in which is connected, (b) is a state in which a filling step for filling the filler into the communication through-hole through the pipe is completed Indicates. It is a whole view explaining the construction method which fixes a cap to a concrete railing using the fastener of a prior art example, and it.

Hereinafter, a fastener, an attachment construction method for an attachment to a concrete base material (hereinafter also simply referred to as an attachment construction method), and a fastening portion structure according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1A and FIG. 1B are diagrams for explaining a fastener 10 and a mounting method according to an embodiment of the present invention. Specifically, as shown in FIG. An embodiment in which the present invention is applied to attachment of a cap 2 (attachment) to a concrete rail 1 (wall-shaped concrete base material) will be described. FIGS. 1A and 1B are cross-sectional views showing the vicinity of the fastening portion 3, which is a place where the cap 2 is fastened and fixed to the concrete rail 1 by the fastener 10 in FIG. 5.
In FIGS. 1A, 1B, and 5, description will be made with the upper side as the upper side and the lower side as the lower side. Also, in FIG. 6A, FIG. 7 and FIG.

  As shown in FIG. 5, the cap 2 is specifically a long metal member having a U-shaped cross section, and includes a top plate portion 2a and a pair of side plate portions 2b extending in parallel from both sides thereof. It has. And this cap 2 is arranged such that the pair of side plate portions 2b are arranged along both surfaces of the wall-shaped concrete rail 1 and the top plate portion 2a is arranged on the upper end of the concrete rail 1. 1 is provided so as to cover the top.

As shown in FIG. 2, the fastener 10 includes a bolt 11, a nut 12, and a pair of washers 13.
The bolt 11 has a head portion 11b protruding so as to protrude in a flange shape at one end (one end in the axial direction) of the shaft portion 11a on which a thread is formed (hereinafter referred to as a head-equipped bolt). Also called). The bolt 11 in the illustrated example is specifically a hexagonal bolt, and the head 11b has a hexagonal outer peripheral shape. The entire head 11b is used for adjusting the direction of the bolt 11 around the axis and tightening the nut 12. It functions as a tool engaging portion for engaging a hand tool such as a spanner to restrict rotation of the bolt 11 and the like.
The nut 12 can be screwed into the shaft 11a of the bolt 11 from the tip of the shaft 11a (the end opposite to the head 11b) and screwed to the shaft 11a.
The washer 13 is a ring-shaped plate-like component that can be externally inserted into the shaft 11 a of the bolt 11.

  As shown in FIG. 1 (a), when the cap 2 provided so as to cover the upper part of the concrete rail 1 using the fastener 10 is fastened and fixed, the concrete rail 1 penetrates in the horizontal direction. From one end to the communicating through hole 4 in which the through hole 1a (base material through hole) provided and the bolt insertion hole 2c penetrating each of the pair of side plate portions 2b of the cap 2 communicate with each other. One of a pair of washers 13 passed through the shaft portion 11a of the bolt 11 and preliminarily inserted into the shaft portion 11a of the bolt 11 is disposed between the nut 12 and the cap 2 (specifically, the side plate portion 2b). The other of the washers 13 is extrapolated to a portion of the shaft portion 11a that protrudes from the communication through hole 4. In this state, the cap 2 is fixed to the concrete rail 1 by tightening the nut 12 screwed into the shaft portion 11a of the bolt 11 from the tip (right end in FIG. 1A).

In FIG. 1A, the communication through hole 4 is formed between the pair of side plate portions 2 b of the cap 2 and the concrete rail 1 between the through hole 1 a of the concrete rail 1 and the pair of bolt insertion holes 2 c of the cap 2. The communication part 4a which is surrounded by the sealing material 6 interposed between each of the two and is connected to the through hole 1a of the concrete rail 1 and the bolt insertion hole 2c of the cap 2 is secured.
The length (full length) of the communication through hole 4 in the illustrated example is the sum of the lengths of the through hole 1a of the concrete rail 1, the pair of bolt insertion holes 2c of the cap 2, and the two communication portions 4a.

  Moreover, the sealing material 6 illustrated in FIG. 1A includes an edge portion around the end portion (opening portion) of the through hole 1a in the concrete rail 1 and an end portion (opening portion) of the bolt insertion hole 2c in the cap 2. Are formed in a ring shape that seals between the mouth edges corresponding to the surrounding mouth edges. The sealing material 6 is made of, for example, a resin ring-shaped member such as an O-ring attached to the concrete rail 1 or the cap 2 using an attachment material such as an adhesive or a double-sided adhesive tape, or an adhesive material such as a putty. be able to.

As shown in FIG. 1 (a), the bolt 11 is formed such that its head portion 11 b is sized so as not to enter the bolt insertion hole 2 c of the cap 2. Moreover, as for the said volt | bolt 11, the length of the axial part 11a is the total length of the said communication through-hole 4, the thickness dimension of a pair of washers 13, and the thickness dimension of the said nut 12 (the screw hole 12a inside nut 12). The same or larger than the total of the nut 12 in the axial direction) is used.
As the washer 13, an outer diameter that is larger than the inner diameter of the bolt insertion hole 2c of the cap 2 is used.

  As shown in FIGS. 2, 3 (a) and 3 (b), the bolt 11 is formed with an injection hole 11 c for injecting the liquid filler 5 into the communication through hole 4. As shown in FIGS. 3A and 3B, the injection hole 11 c forms one continuous flow path (filler injection flow path), one end of which is the shaft 11 a of the bolt 11. The filler inlet 11d is an opening that opens to the tip surface 11h, and the other end is a filler outlet 11e that is an opening that opens to the outer peripheral surface of the axial center of the shaft 11a of the bolt 11.

  Further, in the bolt 11 of the illustrated example, the injection hole 11c specifically has an axial center of the bolt 11 from the filler inlet 11d along the axial center of the bolt 11 (the axial center of the shaft portion 11a also coincides). It extends perpendicularly to the introduction side hole 11f from the introduction side hole 11f extending to the center in the direction and an end (back end) located on the opposite side to the filler inlet 11d of the introduction side hole 11f. The exit side hole part 11g which exists is comprised. The end of the outlet side hole 11g opposite to the introduction side hole 11f, that is, the end opened to the outer peripheral surface of the shaft portion 11a is the filler outlet 11e.

As the bolt 11, when the cap 2 is fastened and fixed to the concrete rail 1 using the fastener 10, the filler outlet 11e of the injection hole 11c can be disposed in the communication through hole 4. adopt.
More preferably, the filler outlet 11e of the injection hole 11c is arranged at the center in the longitudinal direction of the communication through hole 4. In this respect, as the bolt 11, the distance between the filler outlet 11e of the injection hole 11c and the head 11b in the longitudinal direction (axial center direction) of the shaft portion 11a is a target to be fixed using a fastener. In accordance with the length of the through hole 4 formed by connecting the through hole 1a of the concrete base material (here, the concrete rail 1) and the bolt insertion hole 2c of the attachment (here, the cap 2) to each other, the communication It is preferable to use one that is about half the length of the through hole 4.

As shown in FIGS. 4A to 4C, the washer 13 has an air vent for discharging air in the communication through hole 4 as the filler 5 is injected into the communication through hole 4. A groove 13a is formed.
The air vent groove 13 a is formed on one side of the washer 13 so as to extend along the radial direction of the washer 13. One end of the air vent groove 13 a in the extending direction opens to the inner peripheral surface of the ring-shaped washer 13, and the other end in the extending direction opens to the outer peripheral surface of the washer 13.

  To fasten and fix the cap 2 provided on the top of the concrete rail 1 using the fastener 10 to the concrete rail 1 and to integrate the fastening portion 3 (perform an installation method) First, as shown in FIG. 1 (a), a fastening process for fastening and fixing the cap 2 to the concrete rail 1 is performed using the fastener 10, and then the communication penetration through the injection hole 11 c of the bolt 11. A filling material injection step of filling the hole 5 with the filling material 5 is performed.

  Here, as the filler 5, here, an epoxy liquid resin material that forms an epoxy resin by curing is used, but the filler is not limited to this, and is used for inserting a bolt formed in a concrete base material. The well-known thing used as a filler with which it fills in the through-hole of this can be employ | adopted. This filler is a curable material that can maintain the state where the communicating through hole is embedded by curing after filling into the communicating through hole. For example, a curable material that forms a waterproof resin portion by curing. Liquid resin materials and other inorganic materials such as cement-based adhesives can also be used. By filling the through hole with a waterproof filler, not only the fastening portion 3 can be integrated (concrete rail, fastener, and attachment) but also the fastening portion can be waterproofed.

In the fastening step, as shown in FIG. 1A, the through hole 1a of the concrete rail 1 and the bolt insertion hole 2c of the pair of side plate portions 2b of the cap 2 communicate with each other. One of a pair of washers 13 passed through the shaft portion 11a of the bolt 11 and preliminarily inserted into the shaft portion 11a of the bolt 11 is disposed between the nut 12 and the cap 2 (specifically, the side plate portion 2b), The other of the pair of washers 13 is inserted into a portion protruding from the communication through hole 4 of the shaft portion 11a, and a nut 12 screwed from the tip of the shaft portion 11a is tightened to cap the concrete rail 110 2 is fixed.
When tightening of the nut 12 is completed, the pair of washers 13 is pressed against the cap 2 (specifically, the edge of the bolt insertion hole 2c on the surface opposite to the concrete rail 1 of the side plate portion 2b); Become. As a result, the pair of washers 13, the head portion 11b of the bolt 11, and the nut 12 are in a state where both ends in the longitudinal direction of the communication through hole 4 are closed.

However, in this fastening process, the filler outlet 11e of the injection hole 11c of the bolt 11 is positioned in the communication through hole 4 when the tightening of the nut 12 is completed. Further, the bolt 11 has a direction in which the filler outlet 11 e is positioned at the lower part of the bolt 11, and the washer 13 has a direction in which the opening of the air vent groove 13 a on the outer periphery thereof is positioned at the upper part of the washer 13. To.
The position of the filler outlet 11e of the injection hole 11c of the bolt 11 in the longitudinal direction of the communication through hole 4 is more preferably the center in the longitudinal direction of the communication through hole 4. When the filler outlet 11e is arranged at the longitudinal center of the communication through hole 4, the distance from the air vent groove 13a of the washer 13 arranged at both ends of the communication through hole 4 to the filler outlet 11e is substantially equal. Therefore, it is advantageous in that the occurrence of unfilled portions can be more reliably prevented.

  Further, the pair of washers 13 are extrapolated to the bolts 11 such that the surfaces on which the respective air vent grooves 13a are formed face each other. Therefore, when the tightening of the nut 12 is completed, the surfaces of the pair of washers 13 on which the air bleeding grooves 13 a are formed are pressed against the side plate portions 2 b of the cap 2, and the air bleeding grooves 13 a communicate with the communication through holes 4. It becomes a state.

As shown in FIGS. 3A and 3B, the introduction side hole portion 11f of the bolt 11 in the illustrated example is formed so that its central axis coincides with the axis of the bolt 11, and the filler inlet 11d is opened at the center of the front end surface 11h of the shaft portion 11a of the bolt 11, but the bolt 11 in the illustrated example is formed on the front end surface 11h of the shaft portion 11a in the direction around the axis of the bolt 11 of the filler outlet 11e. Since the marking 11i (see FIG. 3B) indicating the position of the bolt 11 is provided, the position of the filler outlet 11e in the direction around the axis of the bolt 11 can be easily confirmed visually. In the bolt 11, the marking is also provided on the head 11b (not shown).
The marking 11i is not necessarily provided at both ends of the bolt 11 (the head portion 11b and the tip portion of the shaft portion 11a), and may be provided only at one end of the bolt 11.
Further, although the marking 111 is colored here, it may be a groove, a recess, a protrusion, or the like formed at both ends or one end of the bolt 11, for example.

  The bolt according to the present invention has a configuration in which the position of the filler inlet 11d is shifted from the center of the front end surface 11h of the shaft portion 11a, or a circular one whose filler inlet 11d is illustrated in FIG. Instead, for example, as a configuration having a key groove-shaped extension portion 11j as illustrated in FIG. 3C (in FIG. 3C, reference numeral 11k is attached to the filler inlet), the filler inlet itself is filled. It is also possible to adopt a configuration that can function as a marking that indicates the position of the material outlet 11e in the direction around the axis of the bolt 11.

  Further, since the washer 13 has a configuration in which one end in the extending direction of the air vent groove 13a is opened on the outer peripheral surface thereof, the direction of the washer 13 can be easily visually checked depending on the position of the opening portion of the air vent groove 13a on the outer peripheral surface. It can be confirmed, and it is easy to fix the opening of the air bleeding groove 13a in the direction in which the opening is on the top by tightening the nut 12 during the fastening process.

  As shown in FIG. 1B, the filler injection step can be performed by feeding the filler 5 from the filler inlet 11d of the injection hole 11c of the bolt 11. By feeding the filler 5 from the filler inlet 11d, the filler 5 can be filled into the communication through hole 4 through the injection hole 11c of the bolt 11.

  At this time, since the filler outlet 11e of the injection hole 11c of the bolt 11 is located at the lower part of the bolt 11, the filler 5 flowing out from the filler outlet 11e into the communication through-hole 4 is inserted into the communication through-hole 4. It is filled from the lower part of the communication through hole 4. In addition, the filling material 5 is injected into the communication through-hole 4 so that the filler 4 in the communication through-hole 4 gradually rises while keeping the liquid level as high as possible without undulating the liquid surface. It is preferable to adjust the flow rate of the filler 5 fed from the filler inlet 11d (so that the flow rate is not too fast) in order to realize such an increase in the liquid level of the filler 4.

  As described above, the filling material 5 is filled into the communication through hole 4 from below, and accordingly, air (air) in the communication through hole 4 is discharged from the communication through hole 4 to the air vent groove of the washer 13. It is pushed out of the communication through hole 4 through 13a. In other words, the air vent groove 13a of the washer 13 disposed at both ends in the longitudinal direction of the communication through hole 4 allows the air in the communication through hole 4 to be discharged through the filling of the filler 5 into the communication through hole 4. It is made smoothly from both longitudinal ends of the hole 4. As a result, it is possible to easily realize the filling of the filling material 5 in the entire interior of the communication through hole 4 and the embedding without a gap. Then, the filler 5 filled in the communication through-hole 4 is cured (becomes a hardened filler), so that the state where the communication through-hole 4 is embedded is stably maintained, and water in the communication through-hole 4 is prevented. Can do.

According to the fastener 10 and the mounting method using this, the filler 5 into the communication through-hole 4 is fixed after fixing the attachment (here, the cap 2) to the concrete base material (here, the concrete rail 1). It is possible to perform filling. In addition, the air vent groove 13a of the washer 13 smoothly discharges air from the upper part of both ends in the longitudinal direction of the communication through hole 4 along with the injection of the filler 5 into the communication through hole 4. Since it can do, it can implement | achieve easily embedding the inside of the communication through-hole 4 with the filler 5. In addition, it is possible to easily suppress mixing of bubbles in the filler as compared with the conventional technique using a pipe for filling the filler.
Further, as in the prior art, the filler enters into the groove of the thread portion of the tip side portion protruding from the communication through hole of the shaft portion of the through bolt, which obstructs the nut tightening operation and reduces the workability of the tightening operation. Needless to say, good workability can be ensured in the tightening operation of the nut.

  In addition, the attachment construction method is a step of filling the filling material into the clearance C secured between the pair of side plate portions 2b of the cap 2 and the concrete rail 1 by the sealing material 6 after the filling material injection process is completed. (Cap inner filling step) may be included.

The attachment fixedly attached to the concrete rail 1 is not limited to the cap 2 as long as it has a bolt insertion hole.
For example, FIGS. 6 (a) and 6 (b) show a column 10 (attachment) for providing a sound insulation wall or the like on the concrete rail 1 by applying the fastener 10 according to the present invention and an installation method using the same. Shows the state of fixed construction. In the drawing, reference numeral 31 indicates a fastening portion which is a fastening portion where the support column 1 is fastened and fixed to the concrete rail 1 using the fastener 10.
In addition, illustration of the filler is abbreviate | omitted in FIG.6 (b).

As shown in FIGS. 6A and 6B, the support column 7 in the illustrated example is specifically an H-shaped steel, and among the flanges 72 projecting from both ends of the web 71, A pair of flanges 72 projecting on both sides (indicated by reference numeral 72a in the figure) are provided so as to be pressed against one side of the concrete rail 1 (one side of both sides (side surfaces) in the thickness direction of the concrete rail 1). .
In the case of FIGS. 6A and 6B, the bolt 11 of the fastener 10 (specifically, its shaft portion 11 a) includes a through-hole 1 a that is provided in a horizontal direction in the concrete rail 1 and the above-described pillar 7. The bolt is inserted into a through hole 41 which is connected to a bolt insertion hole 73 provided in a flange 72 a pressed against the concrete rail 1. The fastener 10 fixes the column 7 to the concrete rail 1 by tightening the nut 12 screwed to the distal end side of the shaft 11 a of the bolt 11 protruding from the communication through hole 41.

In the configuration of the fastening portion 31 illustrated in FIGS. 6 (a) and 6 (b), the bolt 11 is passed to fix the attachment (the column 7) to the concrete base material (concrete rail 1) by changing the attachment. The communication through hole is a communication through hole 41 in which the through hole 1a of the concrete rail 1 and the bolt insertion hole 73 penetrating the flange 72a pressed against the concrete rail 1 of the support column 7 communicate with each other. As a result, one of the pair of washers 13 is in direct communication with the communicating through hole 42 in a state where the washer 13 is directly pressed against the concrete rail 1, and other than that, This is the same as the fastening portion 3 illustrated in FIGS. 1 (a) and 1 (b).
For example, the filler outlet 11 e of the bolt 11 is positioned below the shaft 11 a of the bolt 11 in the communication through hole 41, and the opening of the air vent groove 13 a on the outer peripheral surface of the pair of washers 13 is the upper part of the washer 13. It is the same as that of the fastening part demonstrated with reference to Fig.1 (a), (b) etc. to be located in.

  FIG. 7 shows a state in which the concrete wall 8 (concrete product) is fastened by applying the fastener 10 and the mounting method using the fastener 10 to a so-called expansion joint method. In this case, one of the pair of concrete wall bodies 8 fastened to each other using the fastener 10 can be regarded as a concrete base material according to the present invention, and the other as an attachment according to the present invention.

  In FIG. 7, an elastically deformable cushion material 9 is sandwiched between a pair of concrete wall bodies 8, and a slight relative displacement is allowed between the pair of concrete wall bodies 8 due to the elastic deformation of the cushion material 9. Has been. The cushion material 9 is provided in layers so as to embed between the pair of concrete wall bodies 8. As this cushioning material 9, a resin foam material etc. can be used, for example.

In FIG. 7, the code | symbol 32 shows the fastening part which is the fastening location which fastened the concrete wall bodies 8 using the fastener 10. As shown in FIG.
In the case of FIG. 7, the bolt 11 (specifically, the shaft portion 11 a) of the fastener 10 penetrates the cushion material 9 through the through-hole 8 a that is horizontally provided in each of the pair of concrete wall bodies 8. The cushion material 9 is passed through a communication through hole 42 including communication holes 9 a (communication portions) communicating with the through holes 8 a of the concrete wall 8 on both sides of the cushion material 9. The fastener 10 fastens the pair of concrete wall bodies 8 by tightening the nut 12 screwed to the distal end side of the shaft portion 11a of the bolt 11 protruding from the communication through hole 42.
In the configuration of FIG. 7, the through hole 8a of one concrete wall body 8 can be regarded as a base material through hole, and the through hole 8a of the other concrete wall body 8 can be regarded as a bolt insertion hole.

In the configuration of the fastening portion 32 illustrated in FIG. 7, the through holes through which the bolts 11 pass to fix the attachment to the concrete base material by changing the concrete base material and the attachment are provided in the pair of concrete wall bodies 8. The point that the through holes 8a provided in each of them become communication through holes 42 that are communicated with each other (communication through the communication holes 9a of the cushion material 9), and as a result, the air vent grooves 13a of the pair of washers 13 are formed. The point which will be connected with the communicating through-hole 42 in the state by which the formed side surface was each pressed against the concrete wall body 8 differs, and other than that, FIG. This is the same as the fastening portion 3 exemplified in (b) and the like.
For example, the filler outlet 11 e of the bolt 11 is positioned below the shaft 11 a of the bolt 11 in the communication through hole 41, and the opening of the air vent groove 13 a on the outer peripheral surface of the pair of washers 13 is the upper part of the washer 13. It is the same as that of the fastening part 3 demonstrated with reference to Fig.1 (a), (b) etc. to be located in.

In FIG. 7, reference numeral 51 denotes a filler filled in the entire communication through-hole 42 through the injection hole 11 c of the bolt 11, and here, particularly after filling the communication through-hole 42, the curing is completed. A filler (hereinafter referred to as a cured filler) is shown.
In view of the relative displacement between the pair of concrete walls 8, the filler cured product 51 is preferably soft even after curing. In this respect, for example, a soft resin such as a rubber-based resin obtained by curing a liquid resin material filled in the communication through hole 42 through the injection hole 11c of the bolt 11 is preferable.

  The present invention may be configured such that the cushion material 9 does not exist between the pair of concrete walls 8 and the clearance is secured.

FIGS. 8A and 8B show another embodiment of the bolt of the fastener according to the present invention.
8A and 8B is different from the bolt 11 described with reference to FIGS. 3A and 3B described above in the specific configuration of the injection hole 11m. The configuration other than the injection hole 11m is the same as the bolt 11 described above. The bolt 11A has a configuration including a shaft portion 11a and a head portion 11b, similar to the bolt 11 described above.

The injection hole 11m of the bolt 11A shown in FIG. 8 has a filler inlet 11n, one end of which is open to the head 11b of the bolt 11, and the other end of the axial center of the shaft 11a of the bolt 11. It is a single continuous flow path (filler injection flow path) that is a filler outlet 11o that is an opening that opens to the outer peripheral surface.
In the illustrated bolt 11A, specifically, the injection hole 11m is formed in the axial center of the bolt 11A from the filler inlet 11n along the axis of the bolt 11A (the axis of the shaft portion 11a also coincides). It extends perpendicularly to the introduction side hole portion 11n from the introduction side hole portion 11p extending to the portion and an end portion (back end) located on the opposite side to the filler inlet 11n of the introduction side hole portion 11p. The outlet side hole portion 11q is provided. The end of the outlet side hole 11q opposite to the introduction side hole 11p, that is, the end opened to the outer peripheral surface of the shaft portion 11a is the filler outlet 11o.

The introduction side hole portion 11p of the bolt 11A in the illustrated example is formed so that the central axis thereof coincides with the axis of the bolt 11A, and the filler inlet 11d is the end surface 11r (shaft portion) of the head portion 11b of the bolt 11A. The bolt 11A in the illustrated example has a marking 11s indicating the position of the filler outlet 11o in the direction around the axis of the bolt 11A. Since it is provided, the position of the filler outlet 11o in the direction around the axis of the bolt 11A can be easily visually confirmed in the fastening process. The marking is also formed on the tip surface 11h of the shaft portion 11a (not shown).
The marking 11s is not necessarily provided at both ends of the bolt 11A (the head 11b and the tip of the shaft portion 11a), and may be provided only at one end of the bolt 11A.
The marking 11s is colored here, but may be a groove, a recess, a protrusion, or the like formed at both ends or one end of the bolt 11A.
In addition, the filler inlet 11n is not a circular shape illustrated in FIG. 3B, for example, and has a key groove-like extended portion, and the filler inlet itself is a direction around the axis of the bolt 11A of the filler outlet 11o. It is possible to adopt a configuration that can function as a marking indicating the position in

9 (a) and 9 (b) are diagrams illustrating another embodiment of the fastener and the mounting method according to the present invention.
The fastener 20 in the illustrated example is replaced with a bolt 21 (headless bolt) whose entire length is formed in a rod shape, instead of the bolt 11 of the fastener 10 described above with reference to FIG. A pair of nuts 22 that can be screwed to the bolts 21 (for the sake of distinction, a reference numeral 221 is attached to one nut 22 and a reference numeral 222 is attached to the other nut 22), and a pair of washers 13 that can be externally attached to the bolts 21; It has composition which comprises.
The fastener 20 in the illustrated example further includes a locking nut 23 that prevents the nut 22 screwed to the bolt 21 from loosening. However, it is essential to include the locking nut 23. is not.

9A is a cross-sectional view showing a state in which the cap 2 (see FIG. 5) is fastened and fixed to the concrete rail 1 using the fastener 20, and FIG. 9B is a bolt 21 of the fastener 20 in FIG. The liquid filler 5 is injected and filled into the communication through hole 4 in which the through hole 1a of the concrete rail 1 and the bolt insertion hole 2c of the cap 2 are connected through the injection hole 21c formed in It is sectional drawing which shows a state.
9A and 9B, reference numeral 33 denotes a fastening portion that is a place where the cap 2 is fastened and fixed to the concrete rail 1 using the fastener 20.

  Specifically, the bolt 21 is a full screw bolt in which a thread 21a is formed over the entire length in the longitudinal direction. However, the screw thread 21a may be configured such that when the bolt 21 is passed through the communication through hole 4, the nut 22 can be screwed into the portions protruding from the communication through holes 4 at both ends. In the longitudinal direction of the bolt 21, a screw thread 21 a is not necessarily formed in a portion disposed in the through hole 1 a of the concrete rail 1.

An example of an installation method in which the cap 2 is fixedly installed on the concrete rail 1 using the above-described fastener 20 will be described.
To fasten and fix the cap 2 provided on the upper part of the concrete rail 1 using the fastener 20 to the concrete rail 1 and to integrate the fastening portion (perform the installation method) First, as shown in FIG. 9 (a), a fastening process is performed in which the cap 2 is fastened and fixed to the concrete rail 1 using the fastener 20, and then the communication penetration is performed through the injection hole 21 c of the bolt 21. A filling material injection step of filling the hole 5 with the filling material 5 is performed.

  In the fastening process, first, the through-hole 1a (base material through-hole) of the concrete balustrade 1 and the bolt insertion holes 2c penetrating through the pair of side plate portions 2b of the cap 2 are communicated with each other. The bolt 21 is inserted into the hole 4 from one end thereof, and one of a pair of washers 13 previously fitted to the bolt 21 is screwed into one end in the longitudinal direction of the bolt 21 with the nut 221 and the cap 2 ( More specifically, the other side of the pair of washers 13 is disposed between the side plate portion 2b) and the other side of the communication through hole 4 opposite to the side (base end side) to which the nut 221 of the bolt 21 is screwed. It is set as the state extrapolated by the part made to protrude (tip side protrusion part). In this state, the cap 2 is fastened and fixed to the concrete rail 1 by tightening the nut 222 screwed into the bolt 21 from the tip side. Thereby, the fastening process in the installation method is completed.

  As illustrated in FIG. 9A, the nut 221 is preferably fixed to the bolt 21 by making it a double nut by tightening a locking nut 23 screwed onto the bolt 21. In such a double nut state, the tool is engaged with the nut 221 and / or the locking nut 23 to adjust the direction of the bolt 21 in the direction around the axis, and the bolt 21 when the nut 222 is tightened. You can easily regulate the rotation. That is, the nut 221 and / or the locking nut 23 can function as a tool engaging portion.

  The fastening process using the fastener 20 uses the nuts 22 at both ends projecting from the communication through hole 4 of the bolt 21 that is passed through the communication through hole 4 and is arranged to penetrate the concrete rail 1 and the cap 2. Any configuration may be used as long as the pair of side plate portions 2b of the cap 2 are fastened and fixed (fastened and fixed) to the concrete rail 1 between the pair of nuts 22, and is not limited to the above-described configuration. For example, after inserting the bolt 21 into the communication through hole 4, the washer 13 is externally inserted into the projecting portions of the bolt 21 at both ends of the communication through hole 4, and the nut 22 is screwed to one or both. It is also possible to perform the tightening operation by rotating the nut 22.

  When the tightening of the nut 22 is completed, the pair of washers 13 is pressed against the cap 2 (specifically, the edge of the bolt insertion hole 2c on the surface opposite to the concrete rail 1 of the side plate 2b) and Become. As a result, both ends in the longitudinal direction of the communication through hole 4 are closed by the pair of washers 13 and the pair of nuts 22.

  Further, the pair of washers 13 are extrapolated to the bolts 21 such that the surfaces on which the respective air vent grooves 13a are formed face each other. Accordingly, when the tightening of the nut 22 is completed, the surfaces of the pair of washers 13 on which the air bleeding grooves 13 a are formed are pressed against the side plate portions 2 b of the cap 2, and the air bleeding grooves 13 a communicate with the communication through holes 4. It becomes a state.

  As shown in FIGS. 9A and 9B, the bolt 21 is formed with an injection hole 21 c for injecting the liquid filler 5 into the communication through hole 4. The injection hole 21c forms one continuous flow path (filler injection flow path), one end of which is one end of the bolt 21 (the end on the side where the nut 221 is provided in the illustrated example). A filler inlet 21d that is an opening that opens to the distal end surface 21h of the base end side, and a filler outlet 21e that is an opening that opens to the outer peripheral surface of the central portion in the axial direction of the bolt 21 at the other end. It has become.

  Further, in the illustrated bolt 21, the injection hole 21 c specifically extends from the filler inlet 21 d to the center of the bolt 21 in the longitudinal direction (axial direction) along the axial center of the bolt 21. An inlet side hole 21f that extends perpendicularly to the inlet side hole 21f from an end (back end) of the inlet side hole 21f opposite to the filler inlet 21d. 21g. The end of the outlet side hole 21g opposite to the introduction side hole 21f, that is, the end opening on the outer peripheral surface of the shaft 21a is the filler outlet 21e.

  As shown in FIG. 9A, in the fastening process, when the nut 22 is completely tightened, the filler outlet 21e of the injection hole 21c of the bolt 21 is in the communication through hole 4 (in the illustrated example, the communication through hole 4). At the center in the longitudinal direction). Further, the bolt 21 has a direction in which the filler outlet 21 e is positioned below the bolt 21, and the washer 13 has a direction in which the opening of the air vent groove 13 a on the outer periphery thereof is positioned above the washer 13. To.

As shown in FIG. 9A, the introduction side hole 21f of the bolt 21 in the illustrated example is formed so that the center axis thereof coincides with the axis of the bolt 21, and the filler inlet 21d is the bolt 21. The front end surface 21h (the front end surface on the base end side) is opened at the center, but the bolt 21 in the illustrated example is marked on both ends to indicate the position of the filler outlet 21e in the direction around the axis of the bolt 21. Since 21i is provided, the position of the filler outlet 21e in the direction around the axis of the bolt 21 can be easily visually confirmed in the fastening process.
The marking 21 i is not necessarily provided at both ends of the bolt 21, and may be provided only at one end of the bolt 21.
In addition, the marking 21i is colored here, but in addition, for example, a groove, a recess, or a protrusion formed on both ends or one end of the bolt 21 may be used.

  The bolt according to the present invention includes a configuration in which the position of the filler inlet 21d is shifted from the center of the front end surface 21h of the bolt, or a shape in which the filler inlet 21d has, for example, a key groove-shaped extension (for example, As a configuration similar to the filler inlet 11d illustrated in FIG. 3C, the filler inlet itself can function as a marking indicating the position of the filler outlet 21e in the direction around the axis of the bolt 21. Can also be adopted.

As shown in FIG. 9B, the filler injection process can be performed by feeding the filler 5 from the filler inlet 21 d of the injection hole 21 c of the bolt 21. By feeding the filler 5 from the filler inlet 21d, the filler 5 can be filled into the communication through hole 4 via the injection hole 21c of the bolt 21.
Accordingly, as described with reference to FIG. 1B described above, similarly to the case of the installation method (fixed method) using the fastener 10 including the bolt 11 that is a head-attached bolt. The filler 5 can be filled in the entire interior of the communication through hole 4. The filling material 5 filled in the communication through-hole 4 is cured, so that the state where the communication through-hole 4 is embedded can be stably maintained, and water in the communication through-hole 4 can be prevented.

Needless to say, the present invention is not limited to the above-described embodiment, and the design can be changed as appropriate.
For example, in FIG. 1 (a), (b), FIG. 2, FIG. 3 (a), FIG. 8, etc., as bolts 11 and 11A, it is 1/3 of the length of the axial part 11a from the front-end | tip of the axial part 1a. Although the thread 11a1 is formed in a range of the degree, and the configuration in which the filler outlet 11e is provided in a place where the thread 11a1 of the shaft portion 11a is not formed is illustrated, the present invention is not limited to this. The thread 11a1 may be formed on the entire length in the longitudinal direction of the shaft portion 1a.
The head of the bolt 11 with a head includes a tool engaging portion that engages a tool for adjusting the direction of the bolt 11 in the direction around the axis, restricting the rotation of the bolt 11 when the nut 12 is tightened, and the like. It is not limited to those having a hexagonal outer periphery in order to engage the tool. For example, a tool engagement hole such as a hexagonal hole or a square hole is formed as the tool engagement portion. It is also possible to adopt those that are. In the case of the head in which the tool engagement hole is formed, the outer peripheral shape thereof is not particularly limited.
The concrete base material is not limited to a wall shape as long as it can form a base material through hole, and may be a columnar shape. As the wall-shaped concrete base material, in addition to the above-mentioned concrete railings, for example, a wall portion of a concrete building such as a building, a concrete wall functioning as a handrail for a rooftop parapet or a veranda can be widely applied.

  As the washer, a cutting washer 14 illustrated in FIGS. 10A to 10C can be employed instead of the above-described washer 13. The cutting washer 14 is formed with a slit 14a extending along the radial direction for discharging the air in the communication through-hole as the filler is injected into the communication through-hole. When an attachment is attached to the concrete base material using a fastener using the cutting washer 14, the opening of the slit 14 a in the outer peripheral portion of the cutting washer 14 is made to be an upper part of the cutting washer 14.

A washer 13 (hereinafter also referred to as a grooved washer, see FIGS. 4A to 4C, etc.) in which the air vent groove 13a is formed is an opening of the air vent groove 13a in the outer peripheral portion of the washer 13. This is advantageous over the cutting washer 14 in that the position (height) can be set by the outer diameter of the grooved washer 13 regardless of the size of the nut abutting against the washer 13.
The cutting washer 14 has a configuration in which slits 14 a functioning as passages for discharging air from the communication through hole accompanying injection of the filler into the communication through hole open on both sides of the thickness of the cutting washer 14. Therefore, the position of the air outlet in the slit 14a is substantially determined by the size of the nut. In addition, when this cutting washer 14 is used as a washer, a nut having a size larger than the cross section of the communicating through hole 4 as a nut with which the cutting washer 14 contacts in order to realize filling of the filling material into the entire communicating through hole ( Use a size that can block the end of the communication through-hole).
On the other hand, in the case of the grooved washer 13, if the outer diameter of the grooved washer 13 itself is larger than the cross-section of the communication through hole 4, the entire inside of the communication through hole can be filled with a filler. The position (height) of the opening of the air vent groove 13a in the outer peripheral portion of the washer 13 is determined by the outer diameter of the washer 13, and does not depend on the size of the nut that abuts on the grooved washer 13. Moreover, the freedom degree of the size (outer size) of the nut to be used is improved.

DESCRIPTION OF SYMBOLS 1 ... Concrete base material (concrete balustrade), 1a ... Base material through-hole, 2 ... Attachment (cap), 2c ... Bolt insertion hole, 3, 31, 32, 33 ... Fastening part, 4 ... Communication through-hole, 4a ... Communication part, 5 ... Filler, 51 ... Filler (filler cured product), 6 ... Sealing material, 7 ... Attachment (support), 73 ... Bolt insertion hole, 8 ... Concrete base material, Attachment (concrete wall) ), 8a ... base material through hole,
DESCRIPTION OF SYMBOLS 10 ... Fastener, 11 ... Bolt (bolt with head), 11a ... Shaft part, 11b ... Head, 11c ... Injection hole, 11d ... Filler inlet, 11e ... Filler outlet, 11i ... Marking, 11 ... Filler Inlet, 12 ... nut, 13 ... washer (grooved washer), 13a ... air vent groove, 14 ... washer (cutting washer), 14a ... slit,
11A ... bolt, 11m ... injection hole, 11n ... filler inlet, 11o ... filler outlet, 11s ... marking,
DESCRIPTION OF SYMBOLS 20 ... Fastener, 21 ... Bolt (headless bolt), 21c ... Injection hole, 21d ... Filler inlet, 21e ... Filler outlet, 21i ... Marking, 21 ... Filler inlet, 22, 221, 222 ... Nut.

Claims (8)

The concrete base is passed through a communication through hole in which a base material through hole penetrating a wall-like or columnar concrete base material in a horizontal direction and a bolt insertion hole penetrating through an attachment attached to the concrete base material are communicated. A bolt that penetrates through the material and the attachment, a nut that is screwed into a portion of the bolt that protrudes from the communication through hole, and a portion that protrudes from both ends of the communication through hole of the bolt. A washer that is inserted and pressed against the concrete base material by the tightening force of the nut, and the attachment;
The bolt is provided with an injection hole for injecting a liquid filler into the communication through-hole, and the injection hole extends from the communication through-hole when inserted into the communication through-hole of the bolt. A filler inlet that opens in the protruding portion, and a filler outlet that is opened in the outer peripheral surface of the bolt and is disposed in the communication through hole when the bolt is inserted into the communication through hole;
The washer is a groove that extends along the radial direction of the washer on one side of the washer and opens in the outer peripheral surface of the washer. The groove is formed in the communication through hole in accordance with the injection of the filler into the communication through hole. A fastener comprising an air vent groove for discharging air or a slit extending along a radial direction of the washer for discharging the air.   When the bolt is inserted into the communication through hole, the portion of the bolt at the filler outlet which is the opening of the injection hole in the outer peripheral surface of the central portion in the axial center direction of the bolt is protruded from the communication through hole. The fastener according to claim 1, wherein a marking indicating a position in a direction around the axis is provided.   3. The bolt according to claim 1, wherein the bolt has a head at one end of the shaft portion, and the injection hole has a filler inlet opening at the head of the bolt or at the tip of the shaft portion. The fastener described.   The fastener according to claim 1 or 2, wherein the bolt is formed in a rod shape over the entire length in the longitudinal direction, and includes a plurality of the nuts. It is an installation method that is carried out for the purpose of integrating the attachment to the wall-like or columnar concrete base material using the fastener according to any one of claims 1 to 4 and the integration of the fastening portion,
The bolt is inserted into a communication through hole in which a base material through hole penetrating the concrete base material in a horizontal direction and a bolt insertion hole penetrating through an attachment attached to the concrete base material are communicated. The filler outlet which is the opening of the injection hole on the outer peripheral surface of the bolt is disposed in the communication through hole, and is protruded from both ends of the communication through hole of the bolt by tightening the nut screwed to the bolt. The concrete base material and the attachment are fastened between the washers that have been extrapolated to the respective parts, and the bolt is placed in a direction in which the outlet of the filler is positioned below the bolt, and the washer is A fastening step in which the air vent groove on the outer periphery or the opening of the slit is stationary in a direction in which it is located above the washer;
After this fastening step, a filler injection step of injecting the filler into the communication through hole from the filler inlet that is an opening of the injection hole that opens at one end in the axial direction of the bolt via the injection hole An installation method of an attachment to a concrete base material characterized by comprising:   In the fastening step, a sealing material is interposed between the concrete base material and the attachment, and the communication through hole is formed of the base material through hole of the concrete base material and the bolt insertion hole of the attachment. The nut is tightened in a state in which a communication portion surrounded by the sealing material and communicating with the base material through hole and the bolt through hole is secured between the nuts. The installation method of the attachment to the concrete base material of description. It is the structure of the fastening part which fastened the attachment to the wall-shaped or columnar concrete base material using the fastener in any one of Claims 1-4,
The bolt is inserted into a communication through hole in which a base material through hole penetrating the concrete base material in a horizontal direction and a bolt insertion hole penetrating through an attachment attached to the concrete base material are communicated, and the bolt A filler outlet that is an opening of the injection hole on the outer peripheral surface is disposed in the communication through hole, and is protruded from both ends of the communication through hole of the bolt by tightening the nut screwed to the bolt. The concrete base material and the attachment are fastened between the washers that have been extrapolated to the respective parts, the bolt is oriented so that the filler outlet is located below the bolt, and the washer is The fastening part structure according to claim 1, wherein the air vent groove or the opening of the slit is provided so as to be positioned above the washer.   The fastening portion structure according to claim 7, further comprising a filler that fills the communication through hole.

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