JP5584596B2 - Sleeve holder and sleeve holding method - Google Patents

Description

  The present invention relates to a sleeve holder for fixing a sleeve for piping and wiring in a beam or wall formwork when placing concrete in a building work or the like, and a sleeve holding method using the sleeve holder.

  Conventionally, in order to form through holes for passing water pipes, gas, air, etc., and electrical wiring in the beams and walls of buildings made of reinforced concrete, a cylindrical shape in advance in a predetermined position in the formwork of the beams and walls A construction method in which a sleeve is attached and concrete is cast there is known.

  Further, in forming the through hole in this way, as a holder used to hold the sleeve to the reinforcing bar, a C-shaped clip part that can be attached to the reinforcing bar, and a side protruding from the clip part. There is known a sleeve holder in which an arm portion and a substantially C-shaped sleeve holding portion that is provided continuously to the arm portion and can hold the sleeve are integrally formed (see, for example, Patent Document 1).

Japanese Patent No. 3692019

By the way, the reinforcing bar size (diameter) used for the reinforced concrete is different depending on the contractor. On the other hand, the sleep holder is formed of a hard resin and has a fixed shape, and is not assorted according to the size of the reinforcing bar.
For this reason, when the outer diameter of the reinforcing bar is too small compared to the C shape of the clip part of the sleep holder, the clip part is allowed to follow the shape of the reinforcing bar even when fastened from above the sleeve using a wire-like binding wire. Difficult to fix securely.
On the other hand, when the outer diameter of the reinforcing bar is too larger than the diameter of the clip part, it is difficult to put the reinforcing bar into the clip part, the workability is poor, or the reinforcing bar cannot be attached.

  An object of the present invention is to solve the above-described problems, and an object of the present invention is to provide a sleeve holder in which a clip portion can be securely and easily attached even if the outer diameters of the reinforcing bars are different.

In order to achieve the above object, the invention described in claim 1
A sleeve holder for holding a sleeve for forming a through hole in a reinforced concrete to the reinforcing bar,
A sleeve holding member that is attached to the outer periphery of the sleeve and holds the sleeve;
A reinforcing bar mounting member having a clip portion having a substantially C-shaped cross section that can be mounted on the outer periphery of the reinforcing bar, a first coupling portion provided in the sleeve holding member, and a second bar provided in the reinforcing bar mounting member. A coupling member for coupling the reinforcing bar mounting member and the sleeve holding member by coupling the coupling part to each other;
With
The reinforcing bar mounting member is set to have a plurality of types with different shapes of the clip portion according to the difference in outer diameter of the reinforcing bar to be mounted ,
The sleeve holding member is formed in a substantially C shape having an insertion opening for inserting the sleeve from the outer diameter direction,
The sleeve holding member includes the first coupling portion at a plurality of locations on the outer periphery,
A sleeve holder characterized in that the insertion opening can be oriented differently by selectively coupling the second coupling portion of the reinforcing bar mounting member to the plurality of first coupling portions. It was.

Furthermore, the invention according to claim 2 is the sleeve holder according to claim 1,
The coupling member is configured to insert the insertion portion formed in the other insertion portion into the insertion hole formed in one of the coupling portions, and the insertion hole includes a restriction portion that restricts the insertion portion from coming off. A sleeve holder characterized by being provided.
The invention according to claim 3, Te sleeve retainer smell of claim 1 or claim 2, wherein the clip unit is characterized in that it comprises a deformation promoting portion to promote the deformation of the clip portion A sleeve holder was obtained.
The invention according to claim 4 is a sleeve holder for holding a sleeve for forming a through hole in reinforced concrete to the reinforcing bar,
A sleeve holding member that is attached to the outer periphery of the sleeve and holds the sleeve;
A reinforcing bar mounting member comprising a clip portion having a substantially C-shaped cross section that can be mounted on the outer periphery of the reinforcing bar;
A coupling member for coupling the reinforcing bar mounting member and the sleeve holding member by mutually coupling a first coupling part provided on the sleeve holding member and a second coupling part provided on the reinforcing bar mounting member;
With
The sleeve holding member is formed in a substantially C shape having an insertion opening for inserting the sleeve from the outer diameter direction,
The sleeve holding member includes the first coupling portion at a plurality of locations on the outer periphery,
A sleeve holder characterized in that the insertion opening can be oriented differently by selectively coupling the second coupling portion of the reinforcing bar mounting member to the plurality of first coupling portions. It was.

The invention according to claim 5 is a sleeve holding method for holding the sleeve on the reinforcing bar using the sleeve holder according to any one of claims 1 to 3 ,
From among a plurality of types of reinforcing bar mounting members provided with clip portions that can be mounted on a plurality of different outer diameters of the reinforcing bar, a member corresponding to the outer diameter of the reinforcing bar to be mounted is selected. And attaching this to the rebar,
Coupling the first coupling part of the sleeve holding member and the second coupling part of the reinforcing bar mounting member mounted on the reinforcing bar;
Holding the sleeve with the sleeve holding member;
Selectively coupling a plurality of first coupling portions to the second coupling portion of the reinforcing bar mounting member mounted on the reinforcing bars to selectively change the direction of the insertion opening;
The sleeve holding method is characterized by including:

In the invention according to claim 1 of the present application, in attaching the reinforcing bar mounting member to the reinforcing bar, the optimal reinforcing member according to the outer diameter of the reinforcing bar to be mounted is selected from the reinforcing bar mounting members having a plurality of clip portions having different shapes. The thing which has a clip part of a shape is selected, and the clip part is attached to a reinforcing bar.
After or before the mounting operation of the reinforcing bar mounting member, the first connecting portion of the sleeve holding member and the second connecting portion of the reinforcing bar mounting member are combined to integrally connect the reinforcing bar mounting member and the sleeve holding member. State. Then, the sleeve is held by the sleeve holding member attached to the reinforcing bar in this way.
As described above, according to the present invention, since the clip having the optimum shape for the outer diameter of the reinforcing bar to be mounted can be selected from the types having different clip shapes of the reinforcing bar mounting member, When the diameter is too small or too large, problems are unlikely to occur, and it is possible to securely fix without wobbling and to easily insert the reinforcing bar into the clip portion.
Further, since the reinforcing bar mounting member and the sleeve holding member are formed separately and only a plurality of types of reinforcing bar mounting members need to be set, the conventional sleeve holder is integrally formed with clip portions of different shapes. In comparison, material costs and storage space can be reduced, and transportation is facilitated.
Furthermore, in the first aspect of the present invention, the direction of the insertion opening can be selectively changed by selectively coupling the plurality of first coupling portions to the second coupling portion of the reinforcing bar mounting member. Yes, the insertion direction of the sleeve with respect to the sleeve holding member can be selected.
Therefore, workability can be improved by directing the direction of the insertion opening in a direction in which the sleeve can be easily inserted.

  In the second aspect of the present invention, after the coupling parts are coupled to each other in the coupling member, the regulation part regulates that the insertion part is pulled out from the insertion hole, and the coupled state can be maintained more reliably.

In the invention according to claim 3, since the clip portion includes the deformation promoting portion, the deformation of the clip portion is facilitated as compared with a case where the clip promoting portion is not provided.
Therefore, the deformation | transformation which makes a clip part along a reinforcing bar becomes easy, the adhesiveness of a clip part and a reinforcing bar is improved, and the fixing without wobbling of a sleeve holder becomes more reliable. In addition, this makes it possible to attach to a plurality of reinforcing bars with one clip portion, and it is possible to reduce the number of types of setting in the reinforcing bar attachment member.
In the invention according to claim 4, the direction of the insertion opening can be selectively selected by selectively coupling the plurality of first coupling portions to the second coupling portion of the reinforcing bar mounting member. It can be changed, and the insertion direction of the sleeve with respect to the sleeve holding member can be selected. Therefore, workability can be improved by directing the direction of the insertion opening in a direction in which the sleeve can be easily inserted.

In the invention according to claim 5, when the sleeve is held by the reinforcing bar using the sleeve holder according to any one of claims 1 to 3, each of the reinforcing bars having a plurality of different outer diameters is used. In order to select the one corresponding to the outer diameter of the reinforcing bar to be mounted from among multiple types of reinforcing bar mounting members with clip parts that have different shapes so that they can be mounted, On the other hand, it is difficult to cause a problem when the outer diameter of the reinforcing bar is too small or too large, and it is possible to securely fix without wobbling and to easily insert the reinforcing bar into the clip portion.
Further, the direction of the insertion opening can be selectively changed by selectively coupling the plurality of first coupling portions to the second coupling portion of the reinforcing bar mounting member, and insertion of the sleeve into the sleeve holding member The direction can be selected. Therefore, workability can be improved by directing the direction of the insertion opening in a direction in which the sleeve can be easily inserted.

1A and 1B are views showing a sleeve holder A according to Embodiment 1 of the present invention, in which FIG. 1A is a cross-sectional view seen from a direction along the axis of an arc of a sleeve holding member 10, and FIG. It is the arrow view seen from the arrow B direction which is the orthogonal direction. FIG. 2 is a perspective view showing a construction example of the sleeve holder A according to the first embodiment. FIG. 3 is a cross-sectional view showing the sleeve holder of the second embodiment. FIG. 4 is a cross-sectional view showing the sleeve holder of the third embodiment. FIG. 5 is a front view showing the sleeve holder of the fourth embodiment. FIG. 6 is a front view showing the sleeve holder of the fifth embodiment. FIG. 7 is a front view showing the sleeve holder of the sixth embodiment. FIG. 8 is a sectional view showing a sleeve holder according to Embodiment 7 of the present invention. FIG. 9 is a cross-sectional view showing the main part of the sleeve holder according to the eighth embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
(Embodiment 1)
A sleeve holder A according to Embodiment 1 and a sleeve holding method using the sleeve holder A will be described.
In addition, the sleeve holder A of this Embodiment 1 forms the through-hole which performs piping and wiring, such as a water supply / drainage facility and an electrical installation, in reinforced concrete structures, such as cloth foundation concrete, a concrete beam, or a concrete pillar, for example. This is used when the sleeve SL is embedded and held. That is, FIG. 2 shows a reinforcing bar ST that forms a reinforced concrete structure. A sleeve holder A is attached to the reinforcing bar ST before placing the concrete, and the sleeve SL is held by the sleeve holder A. Then, concrete is placed, a through hole is formed in the concrete structure by the sleeve SL, and a water supply / distribution pipe or wiring is inserted into the sleeve SL at a later date.

(Sleeve holder)
First, the sleeve holder A of Embodiment 1 will be described.
The sleeve holder A is for attaching the sleeve SL to the outer periphery of the sleeve SL to hold the sleeve SL. As shown in FIG. 1, the sleeve holder A includes a sleeve holding member 10, a reinforcing bar attaching member 20, and a coupling member 30. ing.

  The sleeve holding member 10, the reinforcing bar mounting member 20, and the coupling member 30 are made of synthetic resin such as polypropylene, polystyrene, acrylonitrile-butadiene-styrene copolymer (ABS), acrylonitrile-styrene copolymer (AS), respectively. Is formed.

The sleeve holding member 10 holds the sleeve SL in a state of being mounted on the outer periphery of the sleeve SL, and is formed in a substantially C-shaped cross section in which an insertion opening 12 is provided in a part of an annular ring. C-shaped folded portions 11 and 11 for guiding the insertion of the sleeve SL are formed at both ends facing the opening 12 for use.
Further, the inner diameter of the sleeve holding member 10 is slightly smaller than the outer diameter of the sleeve SL to be mounted, and when the sleeve SL is fitted into the sleeve holding member 10 from the insertion opening 12, The elastic force of the synthetic resin forming the sleeve holding member 10 is in close contact with the outer peripheral surface of the sleeve SL so as to hold the sleeve SL along the central axis direction of the C-shaped arc. A plurality of types of sleeve holding members 10 having different inner diameters according to the difference in outer diameter of the sleeve SL to be mounted are set.

  The reinforcing bar mounting member 20 includes a clip portion 21 having a substantially C-shaped cross section that can be mounted on the outer periphery of the reinforcing bar ST. As shown in FIG. 1B, the clip portion 21 is formed in a C-shaped cross section having an opening 21a that can be mounted on the outer periphery of the reinforcing bar ST. Moreover, the guide pieces 21b and 21b which guide insertion of the reinforcing bar ST inside are provided in the both ends which face the opening 21a.

  Further, an arm portion 22 is integrally formed on the back side of the clip portion 21. The arm portion 22 is formed in a shape in which a first plate piece 22 a and a second plate piece 22 b raised in a direction orthogonal to the axial direction of the clip portion 21 are integrated in a substantially cross shape. The first plate piece 22a is formed with engagement grooves 22c and 22d for engaging the wire-like binding wire H (see FIG. 2).

  The coupling member 30 couples the sleeve holding member 10 and the reinforcing bar mounting member 20, and includes a first coupling part 31 on the female side integrally provided on the sleeve holding member 10, and the arm part 22 of the reinforcing bar mounting member 20. And a male second coupling portion 32 provided integrally at the tip.

The first coupling portion 31 is formed integrally with the sleeve holding member 10 and is disposed at a position opposite to the insertion opening 12 with respect to the axial center position of the arc of the sleeve holding member 10.
The first coupling portion 31 includes a cylindrical portion 31a having an axial direction facing the axial center position of the sleeve holding member 10 and an opening 31d facing the outer diameter direction. In addition, a restricting portion 31b having a shape in which the inner diameter is gradually narrowed from the side closer to the opening toward the far side is formed in the intermediate portion in the axial direction of the insertion hole 31e formed in the inner periphery of the cylindrical portion 31a. The restricting portion 31b may be provided over the entire circumference of the insertion hole 31e, or may be provided at intervals in a plurality of locations in the circumferential direction. Furthermore, an engagement hole 31c is formed on the side surface of the cylindrical portion 31a so as to penetrate in the direction perpendicular to the axis.

The second coupling portion 32 is formed integrally with a columnar neck portion 32a extending from the arm portion 22 of the reinforcing bar mounting member 20 in the direction perpendicular to the axis of the clip portion 21, and the tip of the neck portion 32a. And a weight-like insertion head (insertion portion) 32b to be inserted.
As shown in the drawing, the insertion head 32b is formed in a shape obtained by cutting the head of a cone having a small diameter on the distal end side and a large diameter on the proximal end side. The insertion head portion 32b can be inserted into the cylindrical portion 31a, and the largest diameter portion is formed to have an outer diameter dimension that can be engaged with the restricting portion 31b and prevented from coming off. Further, the insertion head 32b is formed with an engagement hole 32c penetrating in the direction perpendicular to the axis. The engagement hole 32c is formed at a position where the insertion head portion 32b is inserted into the cylindrical portion 31a and is prevented from coming off by the restriction portion 31b, and is positioned so as to be coaxial with the engagement hole 31c formed in the cylindrical portion 31a. Has been.

  Furthermore, in this Embodiment 1, as for the reinforcing bar mounting member 20, a plurality of types having different shapes of the clip portions 21 are set according to the difference in the outer diameter of the reinforcing bars ST. That is, the outer diameter of the reinforcing bar ST is set in a plurality of types such as 6 mm, 10 mm, 13 mm, 16 mm, and 19 mm in diameter according to JIS standards. Accordingly, the clip portion 21 also has a clip portion so that the inner periphery thereof is pressed against the outer periphery of the reinforcing bar ST without a gap when the corresponding reinforcing bar ST is inserted according to the difference in the outer diameter of the reinforcing bar ST. A plurality of types having different shapes with different diameters of the arcs forming 21 are set. Therefore, as the reinforcing bar mounting member 20, a type corresponding to the type of the clip portion 21 is set. In addition, as a kind of this clip part 21, you may set according to each each diameter from which the reinforcement ST differs, or based on the elastic deformation of the clip part 21, it attaches to multiple types of reinforcement ST with different diameters. As a possibility, fewer types of reinforcing bars ST may be set.

Next, a construction method for holding the sleeve SL to the reinforcing bar ST using the sleeve holder A of the first embodiment will be described.
First, a member corresponding to the outer diameter of the reinforcing bar ST to be mounted is selected from a plurality of types of reinforcing bar mounting members 20 having different shapes (diameters) of the clip portion 21, and this is mounted on the reinforcing bar ST. That is, the reinforcing bar ST is inserted into the clip portion 21 through the opening 21a, and the reinforcing bar mounting member 20 is mounted on the reinforcing bar ST as shown in FIG.

At this time, since the clip portion 21 corresponds to the outer diameter of the reinforcing bar ST to be mounted, the opening 21a can be widened and the reinforcing bar ST can be easily inserted. The inner circumference is brought into close contact with the outer circumference of the reinforcing bar ST and can be securely attached without wobbling.
Further, in the first embodiment, the wire binding wire H is wound around the outer periphery of the clip portion 21 attached to the reinforcing bar ST while being engaged with the engaging grooves 22c and 22d, and the reinforcing bar mounting member 20 is attached to the reinforcing bar. Secure to ST.

Next, the second coupling portion 32 of the reinforcing bar mounting member 20 mounted on the reinforcing bar ST and the first coupling portion 31 of the sleeve holding member 10 are coupled. That is, as shown in FIG. 1, the insertion portion 32 b of the second coupling portion 32 is inserted into the insertion hole 31 e of the first coupling portion 31, as shown in FIG. To be inserted into the opening 31d. Then, when the insertion head 32b gets over the restriction portion 31b, the movement of the insertion head 32b in the direction of detachment from the insertion hole 31e is restricted by the restriction portion 31b, and the sleeve holding member 10 and the reinforcing bar mounting member 20 are coupled to each other. It becomes.
In this coupling operation, the insertion head 32b is formed so as to be thinner toward the tip, so that the insertion operation is easy.
Furthermore, in the first embodiment, in this state, after both are relatively rotated and both the engagement holes 31c and 32c are arranged coaxially, the engagement pins whose illustration is omitted in the both engagement holes 31c and 32c. To secure the connection between the two 10 and 20.
Thereafter, the sleeve SL is inserted into the sleeve holding member 10 from the insertion opening 12, and the sleeve SL is held as shown in FIG.

The sleeve holder A of the first embodiment described above has the effects listed below.
As for the reinforcing bar mounting member, a plurality of types with different shapes of the clip portions are set according to the difference in outer diameter of the reinforcing bars to be mounted. A) In the first embodiment, a plurality of types of reinforcing bars ST are used. In accordance with the outer diameter, a plurality of types of reinforcing bar mounting members 20 having different shapes of clip portions 21 that can be preferably mounted are set. For this reason, when mounting the reinforcing bar mounting member 20 on the reinforcing bar ST, by selecting the one having the clip part 21 having the optimum shape for the reinforcing bar ST to be mounted, the opening 21a of the clip part 21 is widened to reinforce the reinforcing bar. Can be easily and reliably inserted into the ST. Moreover, in the mounting state to the reinforcing bar ST, the inner periphery of the clip portion 21 is brought into close contact with the outer periphery of the reinforcing bar ST, and can be securely mounted without wobbling.

  b) Since the reinforcing bar mounting member 20 having the clip portion 21 and the sleeve holding member 10 for holding the sleeve SL are formed separately, the material cost and the storage space are reduced compared to the case in which both are formed integrally. And can be easily transported. In particular, in the first embodiment in which a plurality of types of sleeve holding members 10 are set, this effect is remarkable.

  c) In the coupled state in which the insertion head 32b of the second coupling part 32 is inserted into the insertion hole 31e of the first coupling part 31, the restriction part 31b restricts the insertion head 32b from coming out of the insertion hole 31e, The connection of the parts 31 and 32 becomes more reliable.

  d) Since the first coupling portion 31 and the second coupling portion 32 are inserted into the engagement holes 31c, 32c through the engagement pins (not shown) in the coupled state, the coupled state between the two is more reliably ensured. Can be maintained.

(Other embodiments)
Other embodiments of the present invention will be described below. Since the following embodiment is a modification of the first embodiment, only differences from the first embodiment will be described, and the same configuration as that of the first embodiment will be described. The same reference numerals as those in FIG. Also, the description of the same effects as those of the first embodiment is omitted.

(Embodiment 2)
In the sleeve holder according to the second embodiment, as shown in FIG. 3, the sleeve holding member 10 includes another first coupling portion 231 in addition to the first coupling portion 31.
The added first coupling portion 231 is disposed at a position that forms approximately 90 degrees with respect to the direction connecting the insertion opening 12 and the first coupling portion 31.

Therefore, in the sleeve holder of the second embodiment, by selectively coupling the first coupling portions 31 and 231 to the second coupling portion 32 of the reinforcing bar mounting member 20 mounted on the reinforcing bar ST, The insertion opening 12 can be arranged in two different directions with respect to the reinforcing bar ST. As a result, the insertion direction of the sleeve SL into the sleeve holding member 10 can be selected from two directions different by 90 degrees with respect to the reinforcing bar ST to which the sleeve holder is attached, and workability can be improved. it can.
Even in the second embodiment, the effects a) to d) can be obtained as in the first embodiment.

(Embodiment 3)
As shown in FIG. 4, the sleeve holder of the third embodiment includes first coupling portions 31, 231, and 331 at three positions on the outer periphery of the sleeve holding member 10 and at positions different by 90 degrees.

  Therefore, in the sleeve holder of the third embodiment, the three first coupling portions 31, 231, 331 are selectively coupled to the second coupling portion 32 of the reinforcing bar mounting member 20 mounted on the reinforcing bar ST. By doing so, the opening 12 for insertion with respect to the reinforcing bar ST can be arranged in three directions. Thereby, the insertion direction of the sleeve SL with respect to the sleeve holding member 10 can be selected from three directions different by 90 degrees, and the workability can be improved.

Further, in the third embodiment, the shape of the insertion head 332b of the second coupling portion 332 of the reinforcing bar mounting member 20 is formed to have a larger diameter as the tip is opposite to the first embodiment. Therefore, in Embodiment 3, it is possible to release the coupling by pulling out the insertion head 332b after coupling the coupling portions 31, 332 together.
Even in the third embodiment, as in the first embodiment, the effects a), b) and d) can be obtained.

(Embodiments 4 to 6)
Embodiments 4 to 6 are modifications of the clip portion 21 of the reinforcing bar mounting member 20.
In the fourth embodiment shown in FIG. 5, the clip portion 421 of the reinforcing bar mounting member 420 includes a deformation promoting portion 422 having a shape obtained by excising the central portion in the longitudinal direction of the clip portion 21 shown in the first embodiment. By providing the deformation promoting portion 422 in this way, the clip portion 421 is easier to deform than that of the first embodiment, and is easily deformed into a shape along the outer periphery of the rebar ST when mounted on the rebar ST. The mounting property to the rebar ST having a large diameter relative to the shape (inner diameter) of the clip portion 421 is improved.

  The fifth embodiment shown in FIG. 6 is a deformation promoting portion in which the clip portion 521 of the reinforcing bar mounting member 520 is partially cut away from one end in the longitudinal direction with respect to the clip portion 21 shown in the first embodiment. 522. By providing the deformation promoting portion 522 in this way, the clip portion 521 is easier to deform than that of the first embodiment, and is easily deformed into a shape along the outer periphery of the rebar ST when mounted on the rebar ST. Mountability to the rebar ST having a large diameter relative to the shape (inner diameter) of the clip portion 521 is improved.

In the sixth embodiment shown in FIG. 7, the clip portion 621 of the reinforcing bar mounting member 620 is formed in a shape in which approximately half of the C-shaped opening side of the clip portion 21 shown in the first embodiment is cut off. Yes.
In the sixth embodiment, the clip portion 621 is only placed along the reinforcing bar ST and is attached using the binding wire H. Thus, since the clip part 621 is only along the reinforcing bar ST, even if the reinforcing bar ST has a large diameter, it can be attached in close contact with the outer periphery thereof. Therefore, it is suitable for making it for the largest diameter in a plurality of types of clip portions.
In the fourth to sixth embodiments, the effects a) to d) can be obtained as in the first embodiment.

(Embodiment 7)
The seventh embodiment is a modification of the sleeve holding member.
As shown in FIG. 8, the sleeve holding member 710 has a so-called binding band structure in which the serration portion 710b is inserted into the hole portion of the head portion 710a and engaged with each other.
A sleeve base portion 711 that extends along the sleeve SL and a through hole 712 that passes through the sleeve holding member 710 are formed at the base end portion that is the end portion far from the opening 31 d of the first coupling portion 731. The sleeve holding member 710 is inserted into the through hole 712 in contact with the outer diameter side surface of the sleeve base 711.
Therefore, in the seventh embodiment, the sleeve holding member 710 can be mounted and held on the sleeve SL having a different diameter.
Even in the seventh embodiment, the effects a) to d) can be obtained as in the first embodiment.

(Embodiment 8)
The eighth embodiment is a modification of the coupling member.
The coupling member 830 shown in FIG. 9 includes a first coupling portion 831 and a second coupling portion 832. In the second coupling portion 832, two elastic pieces 832 b and 832 b as insertion portions are raised from the neck portion 832 a coupled to the arm portion 22 so as to increase the distance toward the distal end side. An engaging claw 832d is integrally formed on the outer surface of the tip of the elastic piece 832b. The expansion of the elastic pieces 832b and 832b is formed such that the base outer side is narrower than the inner diameter of the insertion hole 831e and the distal end outer side is larger than the inner diameter of the insertion hole 831e.
On the other hand, the first coupling portion 831 integrated with the sleeve holding member 10 engages with the cylindrical portion 831a and engages with the engaging claws 832d and 832d to restrict the elastic pieces 832b and 832b from coming off. 831f and 831f are formed.

Therefore, in the eighth embodiment, when the second coupling portion 832 is inserted into the insertion hole 831e of the first coupling portion 831 while the interval between the elastic pieces 832b and 832b is narrowed, the positions of the engaging claws 832d and 832d are When the engagement holes 831f and 831f coincide with each other, the distance between the elastic pieces 832b and 832b is widened, and the both are engaged to be in a coupled state where they are prevented from coming off. In this connection state, the engagement pins (not shown) can be passed through the engagement holes 831c and 832c formed in both the connection portions 831 and 832 so that the connection state can be reliably maintained.
Even in the eighth embodiment, the effects a) to d) can be obtained as in the first embodiment.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to such embodiment, A various deformation | transformation and substitution can be added in the range which does not deviate from the summary of this invention.

  For example, in the embodiment, the example in which the sleeve holder is made of a synthetic resin has been shown.

  In the embodiment, the male-side second coupling portion is inserted into the female-side first coupling portion. However, this male-female relationship may be reversed from that in the embodiment.

  In the embodiment, the deformation promoting portion has a shape such that a part of the clip portion is excised, but in the formation thereof, it may be formed by actually excising a part after molding, You may shape | mold in such a shape at the time of manufacture.

DESCRIPTION OF SYMBOLS 10 Sleeve holding member 12 Insertion opening 20 Reinforcing bar mounting member 21 Clip part 30 Connection member 31 1st connection part 31b Restriction part 31e Insertion hole 32 2nd connection part 32b Insertion head (insertion part)
231 First coupling part 331 First coupling part 420 Reinforcing bar mounting member 421 Clip part 422 Deformation promoting part 520 Reinforcing bar mounting member 521 Clip part 522 Deformation promoting part 620 Reinforcing bar mounting member 621 Clip part 710 Sleeve holding member 731 First coupling part 830 Coupling Member 831 1st coupling | bond part 831e insertion hole 831f engagement hole (regulation part)
832 Second coupling portion 832b elastic piece (insertion portion)
A Sleeve holder SL Sleeve ST Rebar

Claims (5)

A sleeve holder for holding a sleeve for forming a through hole in a reinforced concrete to the reinforcing bar,
A sleeve holding member that is attached to the outer periphery of the sleeve and holds the sleeve;
A reinforcing bar mounting member comprising a clip portion having a substantially C-shaped cross section that can be mounted on the outer periphery of the reinforcing bar;
A coupling member for coupling the reinforcing bar mounting member and the sleeve holding member by mutually coupling a first coupling part provided on the sleeve holding member and a second coupling part provided on the reinforcing bar mounting member;
With
The reinforcing bar mounting member is set to have a plurality of types with different shapes of the clip portion according to the difference in outer diameter of the reinforcing bar to be mounted ,
The sleeve holding member is formed in a substantially C shape having an insertion opening for inserting the sleeve from the outer diameter direction,
The sleeve holding member includes the first coupling portion at a plurality of locations on the outer periphery,
A sleeve holder characterized in that the insertion opening can be oriented differently by selectively coupling the second coupling portion of the reinforcing bar mounting member to the plurality of first coupling portions. .   The coupling member is configured to insert the insertion portion formed in the other insertion portion into the insertion hole formed in one of the coupling portions, and the insertion hole includes a restriction portion that restricts the insertion portion from coming off. The sleeve holder according to claim 1, wherein the sleeve holder is provided. The sleeve holder according to claim 1 , wherein the clip portion includes a deformation promoting portion that promotes deformation of the clip portion . A sleeve holder for holding a sleeve for forming a through hole in a reinforced concrete to the reinforcing bar,
A sleeve holding member that is attached to the outer periphery of the sleeve and holds the sleeve;
A reinforcing bar mounting member comprising a clip portion having a substantially C-shaped cross section that can be mounted on the outer periphery of the reinforcing bar;
A coupling member for coupling the reinforcing bar mounting member and the sleeve holding member by mutually coupling a first coupling part provided on the sleeve holding member and a second coupling part provided on the reinforcing bar mounting member;
With
The sleeve holding member is formed in a substantially C shape having an insertion opening for inserting the sleeve from the outer diameter direction,
The sleeve holding member includes the first coupling portion at a plurality of locations on the outer periphery,
A sleeve holder characterized in that the insertion opening can be oriented differently by selectively coupling the second coupling portion of the reinforcing bar mounting member to the plurality of first coupling portions. . A sleeve holding method for holding the sleeve on the rebar using the sleeve holder according to any one of claims 1 to 3 ,
Among the plurality of types of reinforcing bar mounting members provided with the clip portions that can be mounted on a plurality of different outer diameters of the reinforcing bars, those corresponding to the outer diameter of the reinforcing bars to be mounted Selecting and attaching it to the rebar;
Coupling the first coupling part of the sleeve holding member and the second coupling part of the reinforcing bar mounting member mounted on the reinforcing bar;
Holding the sleeve with the sleeve holding member;
Selectively coupling a plurality of first coupling portions to the second coupling portion of the reinforcing bar mounting member mounted on the reinforcing bars to selectively change the direction of the insertion opening;
A sleeve holding method comprising: