JP2008144823A - Sleeve holder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sleeve holder capable of sufficiently ensuring covering thickness of concrete from a pipe hole to a reinforcement, easily performing position adjustment of the sleeve without peeling off and breaking the concrete contacting the sleeve holder, coping with change in diameter of the sleeve and the reinforcement and attaining labor-saving of construction by simply and strongly fixing the sleeve to the reinforcement. <P>SOLUTION: The sleeve holder 1 made of synthetic resin capable of fixing the sleeve 4 for forming the pipe hole 3 penetrating through a concrete body 2 in its thickness direction to the reinforcement 5 buried in the concrete body 2 is provided with a retaining member 11 having a retaining abutment part 21, a retaining projection part 22 and a retaining fastening band 23; a fixing member 12 having a fixing abutment part 31, a fixing projection part 32 and a plurality of fixing fastening bands 33; and a connection member 13. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sleeve holder capable of fixing a sleeve for forming a piping hole penetrating a concrete casing in the thickness direction to a reinforcing bar embedded in the concrete casing.

  As is well known, in a concrete frame such as a foundation, a beam, or a wall constituting a reinforced concrete (RC) building, a pipe hole for inserting a pipe is provided so as to penetrate in the thickness direction.

  In this case, a cylindrical or circular sleeve (void) is used for forming the piping hole. When installing a concrete frame, ensure that the axial direction is parallel to the thickness direction of the concrete frame to be constructed, and that the cover thickness of the concrete from the formed pipe hole to the reinforcing bar is sufficient. As described above, after being fixed to a reinforcing bar, it is held between opposing concrete molds. When concrete is placed between opposing concrete molds, and the sleeve is extracted from the concrete frame after curing and deframement, the extracted portion becomes a piping hole.

Conventional techniques for fixing the sleeve to the reinforcing bar include: (1) a holding ring member having a diameter capable of holding the sleeve substantially concentrically, and extending from the holding ring member outward at least in three directions at substantially equal angles. There is known a sleeve holder (for example, refer to Patent Document 1) including three or more flexible attachment wire members that can be fixed to a reinforcing bar.
JP-A-8-128568 (Claim 1, FIG. 1, etc.)

  (2) In Japanese Patent Application No. 2006-195612 previously filed by the applicant of the present application, the band member wound around the outer peripheral surface of the sleeve and the outer peripheral surface of the band member are attached to each other with a space therebetween. A sleeve holder including a plurality of connecting members has been proposed.

However, the sleeve holder of (1) has the following problems.
a) Insufficient fixation of the flexible attachment wire member to the reinforcing bar, and there is a risk that the position of the sleeve may shift due to the placement of concrete, so it is not possible to secure a sufficient cover thickness of the concrete from the pipe hole to the reinforcing bar .
b) When the sleeve holder is made of a steel material, the concrete in contact with the sleeve holder embedded in the concrete frame is peeled off or cracked due to the expansion caused by the oxidation of the steel material.
c) Since the position adjustment of the sleeve is difficult, the construction efficiency is not good.
d) Since the diameter of the retaining ring member cannot be adjusted, it is impossible to cope with a change in the diameter of the sleeve.

The sleeve holders (1) and (2) have the following problems.
e) Since it is necessary to fix the sleeve from three or more directions using three or more flexible attachment line members or three or more connecting members, the fixing work is complicated.

  The present invention has been made in view of the above circumstances and problems, and can sufficiently secure the cover thickness of the concrete from the pipe hole to the reinforcing bar, and the concrete in contact with the sleeve holder does not peel or crack. To provide a sleeve holder that can easily adjust the position of the sleeve, can cope with changes in the diameter of the sleeve and the reinforcing bar, and can easily and firmly fix the sleeve to the reinforcing bar to save labor. With the goal.

  In order to achieve the above object, the invention according to claim 1 is a synthetic resin made of a sleeve capable of fixing a sleeve for forming a piping hole penetrating the concrete frame in the thickness direction to a reinforcing bar embedded in the concrete frame. A sleeve holder, a holding contact portion formed in an arc shape so as to come into contact with the outer peripheral surface of the sleeve, a holding protrusion projecting from the outer peripheral surface of the holding contact portion, and the holding The holding member is wound around the outer peripheral surface of the sleeve through the holding contact portion while being locked to the outer peripheral surface of the holding contact portion, and presses the sleeve against the inner peripheral surface of the holding contact portion. A holding member having a binding band, a fixing contact portion formed in an arc shape so as to contact the outer peripheral surface of the reinforcing bar, a fixing protrusion protruding from the outer peripheral surface of the fixing contact portion, and Outside the abutting part for fixing, spaced apart from each other. A fixing member having a plurality of fixing binding bands that are wound around the reinforcing bar through the fixing contact portion and are pressed against the reinforcing bar by pressing the inner peripheral surface of the fixing contact portion against the reinforcing bar. And a connecting member interposed between the holding protrusion and the fixing protrusion and capable of adjusting a distance between the holding protrusion and the fixing protrusion.

  According to a second aspect of the present invention, the connecting member is composed of at least one connecting piece that can be added in the length direction.

  According to a third aspect of the present invention, the connecting piece is formed in a plate shape so that the surface direction is parallel to the circumferential direction of the holding contact portion.

  According to a fourth aspect of the present invention, the connecting member is constituted by a male screw member that protrudes from the holding projection and has a tip screwed into a female screw hole formed in the fixing projection.

  According to a fifth aspect of the present invention, the holding protrusion is formed in a plate shape so that the surface direction is parallel to the circumferential direction of the holding contact portion.

  According to a sixth aspect of the present invention, the fixing protrusion is formed in a plate shape so that the surface direction is a direction perpendicular to the circumferential direction of the fixing contact portion.

According to the invention of claim 1, the following effects are obtained.
(1) Since the sleeve can be firmly fixed to the reinforcing bar and there is no possibility that the position of the sleeve is shifted due to the placement of the concrete, it is possible to sufficiently secure the cover thickness of the concrete from the pipe hole to the reinforcing bar.
(2) Since it is made of synthetic resin, there is no possibility that the concrete in contact with the sleeve holder embedded in the concrete frame will be peeled off or cracked due to expansion caused by oxidation of the steel material.
(3) Since the position of the sleeve can be adjusted only by adjusting the distance between the holding protrusion and the fixing protrusion by the connecting member, the construction efficiency is good.
(4) Since the holding tie band is wound around the outer peripheral surface of the sleeve, it is possible to cope with a change in the diameter of the sleeve.
(5) Since the binding band for fixing is wound around the reinforcing bar, it can cope with a change in the diameter of the reinforcing bar and can be firmly fixed to a deformed reinforcing bar having a large number of ribs and a large number of nodes.
(6) Since the sleeve can be fixed from one direction with only one sleeve holder and the fixing work is simple, the labor saving of the construction can be achieved.

  According to invention of Claim 2, since the length of a connection member can be increased / decreased by the length unit of a connection piece, the length of a connection member can be adjusted more easily.

  According to invention of Claim 3, even if it is a case where a load is applied to the connecting piece in a direction perpendicular to the length direction at a right angle or other angles, the connecting piece is not easily bent.

  According to the invention of claim 4, the distance between the holding protrusion and the fixing protrusion can be increased or decreased steplessly by screwing the male screw member into the female screw hole or loosening it from the female screw hole. Therefore, the distance between the holding protrusion and the fixing protrusion can be easily adjusted to a desired size.

  According to the fifth aspect of the present invention, even when a load is applied to the holding projection in a direction perpendicular to the projection direction at a right angle or other angle, the holding projection is not easily bent.

  According to the sixth aspect of the present invention, even when a load is applied to the fixing protrusion in a direction intersecting at a right angle or other angle with respect to the protruding direction, the fixing protrusion is not easily bent.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 5, the sleeve holder 1 according to the first embodiment has a sleeve 4 for forming a pipe hole 3 penetrating the concrete casing 2 in the thickness direction embedded in the concrete casing 2. It is made of a synthetic resin that can be fixed to the reinforcing bar 5 and includes a holding member 11, a fixing member 12, and a connecting member 13.

  The pipe hole 3 is for inserting a pipe (not shown). As shown in FIGS. 4 and 5, the pipe hole 3 is provided on a concrete frame 2 such as a foundation, a beam, or a wall constituting a reinforced concrete (RC) building. It is provided so as to penetrate in the thickness direction.

  The concrete frame 2 lays reinforcing bars 5 and lays concrete molds (not shown) so that the surface directions are parallel to and face each other with respect to the axial direction of the reinforcing bars 5, and put concrete between the facing concrete molds. After placing and curing, it can be constructed by removing the concrete formwork.

  For the formation of the piping hole 3, for example, a circular sleeve (void) 4 as shown in FIGS. 1 and 2 or a cylindrical sleeve (not shown) is used. The piping hole 3 is formed along the outer peripheral surface 4 a of the sleeve 4.

  The holding member 11, the fixing member 12, and the connecting member 13 are all made of synthetic resin. Examples of the synthetic resin include polypropylene resin, polyethylene resin, polyamide, and the like.

  As shown in FIGS. 1 to 3, the holding member 11 includes a holding contact portion 21, a holding protruding portion 22, and a holding binding band 23. The holding contact portion 21 is formed in an arc shape so that the inner peripheral surface 21 b contacts the outer peripheral surface 4 a of the sleeve 4. The holding protrusion 22 protrudes from the outer peripheral surface 21 a of the holding contact portion 21.

  The holding tie band 23 is wound around the outer peripheral surface 4a of the sleeve 4 via the holding contact portion 21 while being locked to the outer peripheral surface 21a of the holding contact portion 21, and the sleeve 4 is held for holding. It presses against the inner peripheral surface 21b of the contact portion 21. Therefore, the sleeve holder 1 can cope with a change in the diameter of the sleeve 4.

  The holding band 23 has a flexible band portion 24 and a locking portion 25. The locking part 25 is provided at one end 24 c of the flexible band part 24. The locking portion 25 is formed with an insertion hole (not shown) and a locking claw so as to face the insertion hole. As shown in FIG. 2, a large number of engaging claws 26 are provided on one surface of the flexible band portion 24 that serves as an inner peripheral surface when in use. The flexible band portion 24 is inserted into the insertion hole of the locking portion 25 from the other end 24d. As shown in FIGS. 1 and 2, when the flexible band portion 24 is tightened while being wound around the outer peripheral surface 4 a of the sleeve 4 via the holding contact portion 21, the sleeve 4 is held by the holding contact portion 21. The inner peripheral surface 21b is pressed. The engaging claw 26 is not locked to the locking claw in the direction in which the flexible band portion 24 is tightened, but is locked to the locking claw in the direction in which the flexible band portion 24 is loosened. Therefore, after the flexible band portion 24 is tightened until the sleeve 4 is pressed against the inner peripheral surface 21b of the holding contact portion 21, the tightening by the flexible band portion 24 is not loosened.

  As shown in FIGS. 1 to 3, insertion portions 28 having insertion holes 27 are formed in the vicinity of one end and the other end in the circumferential direction of the outer peripheral surface 21 a of the holding contact portion 21. The holding tie band 23 is detachably locked to the outer peripheral surface 21 a of the holding contact portion 21 by being inserted through the insertion holes 27 of the two insertion portions 28.

  The holding tie band 23 may be integrally formed with the holding contact portion 21. The number of insertion parts 28 is not limited to two, and may be one or three or more. The insertion portion 28 can also be provided at an appropriate position other than the vicinity of one end and the vicinity of the other end of the outer peripheral surface 21a of the holding contact portion 21 in the circumferential direction.

  The fixing member 12 includes a fixing contact portion 31, a fixing protrusion 32, and two fixing binding bands 33. The fixing contact portion 31 is formed in an arc shape so as to contact the reinforcing bar 5. The fixing protrusion 32 protrudes from the outer peripheral surface 31 a of the fixing contact portion 31.

  The fixing band 33 is wound around the reinforcing bar 5 via the fixing contact portion 31 in a state where the binding band 33 is locked to the outer peripheral surface 31a of the fixing contact portion 31 with a space between each other. The inner peripheral surface 31 b of 31 is pressed against the reinforcing bar 5. For this reason, the sleeve holder 1 can cope with a change in the diameter of the reinforcing bar 5.

  The binding band 33 for fixing is configured in the same manner as the binding band 23 for holding, and has a flexible band part 24 and a locking part 25, but the length of the flexible band part 24 is maintained. It is shorter than that of the binding band 23 for use. The flexible band portion 24 of the binding band 33 for fixing is also inserted into the insertion hole of the locking portion 25 from the other end 24d. And if the flexible band part 24 is tightened in the state wound around the reinforcing bar 5 via the fixing contact part 31, the inner peripheral surface 31 b of the fixing contact part 31 is pressed against the reinforcing bar 5. In this case as well as the binding band 23 for holding, after the flexible band portion 24 is tightened until the inner peripheral surface 31 b of the fixing contact portion 31 is pressed against the reinforcing bar 5, the flexible band portion 24. Tightening by will not loosen.

  As shown in FIG. 3, for example, two through holes 37 that penetrate in the tangential direction of the fixing contact portion 31 are formed in the fixing protrusion portion 32 at intervals. As shown in FIGS. 1 and 2, the fixing band 33 is detachably locked to the outer peripheral surface 31 a of the fixing contact portion 31 by being inserted into the through hole 37.

  The fixing band 33 may be integrally formed with the fixing contact portion 31 or the fixing protrusion 32. The number of the binding band 33 for fixation and the through-holes 37 is not limited to two, and may be three or more. Means for locking the binding band 33 to the outer peripheral surface 31 a of the fixing contact portion 31 is not limited to the through-hole 37 provided in the fixing protrusion 32, and the appropriate outer peripheral surface 31 a of the fixing contact portion 31. It may be at least one insertion portion or the like similar to the above-described insertion portion 28 that protrudes from the position. In this case, each fixing binding band 33 may be locked by two or more insertion portions.

  As the synthetic resin constituting the holding band 23 and the fixing band 33, polyamide having high tensile strength is desirable. Examples of the holding binding band 23 and the fixing binding band 33 include “Insulok 66 nylon type (trade name), manufactured by Hokuritsu Electric Co., Ltd.” and the like.

  As shown in FIGS. 1 to 3, the connecting member 13 is interposed between the holding protrusion 22 and the fixing protrusion 32, and determines the distance between the holding protrusion 22 and the fixing protrusion 32. It is adjustable. The connecting member 13 includes at least one (for example, two) connecting pieces 41 that can be added in the length direction (lateral direction in FIG. 3). The number of connecting pieces 41 is not limited to two, and may be one or three or more depending on the distance between the holding protrusions 22 and the fixing protrusions 32 required.

  As shown in FIG. 3, for example, a columnar convex portion 42 is provided on the protruding end surface of the holding projection 22. A recess 43 having a circular cross section, for example, is formed on the protruding end surface of the fixing protrusion 32. On one end face of the connecting piece 41, a convex portion 42 similar to the convex portion 42 provided on the holding protruding portion 22 is projected. On the other end face of the connecting piece 41, a recess 43 is provided that is similar to the recess 43 provided in the fixing protrusion 32.

  When two connecting pieces 41 are used, the convex portion 42 provided on one connecting piece 41 is fitted into the concave portion 43 provided on the fixing protrusion 32. A convex portion 42 provided on the other connecting piece 41 is fitted into the concave portion 43 provided on one connecting piece 41. A convex portion 42 provided on the fixing protrusion 32 is fitted into the concave portion 43 provided on the other connecting piece 41.

  Although not shown, when three or more connecting pieces 41 are used, the connecting pieces 41 may be added in the length direction in the same manner as described above. On the other hand, when using one connection piece 41, the convex part 42 provided in the connection piece 41 is fitted by the recessed part 43 provided in the protrusion part 32 for fixation. In this case, the convex portion 42 provided in the fixing protrusion 32 is fitted into the concave portion 43 provided in the connecting piece 41.

  In any case, the convex portion 42 and the concave portion 43 are detachable, but it is desirable not to be separated until a certain load is applied. In this way, if the connecting member 13 is composed of at least one connecting piece 41 that can be added in the length direction, the length of the connecting member 13 can be increased or decreased by the length of the connecting piece 41. There is an advantage that the length of 13 can be adjusted more easily.

Next, the usage method of the sleeve holder 1 comprised as mentioned above is demonstrated.
As shown in FIGS. 1 and 2, in order to fix the sleeve 4 to the reinforcing steel bar 5 using the sleeve holder 1, first, (a) the required holding protrusion 22 and the fixing protrusion 32. As described above, the connecting member 13 including an appropriate number (for example, two) of connecting pieces 41 is interposed between the holding protruding portion 22 and the fixing protruding portion 32 according to the distance between the holding protruding portion 32 and the holding protruding portion 32.

  Next, (b) the sleeve 4 is wound around the outer peripheral surface 4a of the sleeve 4 through the holding contact portion 21 while being inserted into the insertion holes 27 of the two insertion portions 28. Press against the inner peripheral surface 21 b of the holding contact portion 21. Thereby, the sleeve 4 is held by the holding member 11.

  Then, (c) by winding the two fixing tie bands 33 around the reinforcing bars 5 through the fixing contact portions 31 while being inserted through the through holes 37, the inner circumference of the fixing contact portion 31 The surface 31b is pressed against the reinforcing bar 5. Thereby, as shown in FIGS. 1 to 5 (FIGS. 4 and 5 are states after the sleeve holder 1 is pulled out), the axial direction is parallel to the thickness direction of the concrete frame 2 and The sleeve 4 is fixed to the reinforcing bar 5 via the sleeve holder 1 so that the concrete cover thickness from the pipe hole 3 to the reinforcing bar 5 is sufficiently secured.

  Note that the above operations (a), (b), and (c) may be executed by appropriately changing the order. Moreover, the axial direction of the reinforcing bar 5 may be other than the vertical direction such as a horizontal direction or an oblique direction.

  Here, as shown in FIGS. 1 and 2, if the holding protrusion 22 is formed in a plate shape so that the surface direction is parallel to the circumferential direction of the holding contact portion 21, Even if a load is applied to the holding projection 22 in a direction perpendicular to the projection direction (lateral direction in FIG. 1, horizontal direction in FIG. 2) at other angles, the holding projection 22 There is an advantage that it is difficult to bend. Similarly, if the fixing protrusion 32 is formed in a plate shape so that the surface direction is perpendicular to the circumferential direction of the fixing contact portion 31, the protrusion protrudes from the fixing protrusion 32. Even when a load is applied in a direction perpendicular to the direction (lateral direction in FIG. 1, lateral direction in FIG. 2) at other angles, there is an advantage that the fixing protrusion 32 is not easily bent. Similarly, if the connecting piece 41 is formed in a plate shape so that the surface direction is parallel to the circumferential direction of the holding contact portion 21, the length direction ( Even when a load is applied in a direction that intersects at a right angle or other angles with respect to the lateral direction of FIG. 1 or the lateral direction of FIG.

  Next, the concrete formwork is erected so as to sandwich and oppose both ends of the sleeve 4 in the length direction, and concrete is placed between the opposing concrete formwork. If the sleeve 4 is extracted, the extracted portion becomes the piping hole 3 as shown in FIGS. The sleeve holder 1 is embedded in the concrete housing 2.

Thus, the sleeve holder 1 has the following advantages.
(1) Since the sleeve 4 can be firmly fixed to the reinforcing bar 5 and there is no possibility that the position of the sleeve 4 is shifted due to the placement of concrete, a sufficient cover thickness of the concrete from the pipe hole 3 to the reinforcing bar 5 is ensured. be able to.
(2) Since it is made of a synthetic resin, there is no possibility that the concrete in contact with the sleeve holder 1 embedded in the concrete housing 2 will be peeled off or cracked due to expansion caused by oxidation of the steel material.
(3) Since the position of the sleeve 4 can be adjusted only by adjusting the distance between the holding protrusion 22 and the fixing protrusion 32 by the connecting member 13, the construction efficiency is good.
(4) Since the holding tie band 23 is wound around the outer peripheral surface 4 a of the sleeve 4, it is possible to cope with a change in the diameter of the sleeve 4.
(5) Since the binding band 33 for fixing is wound around the reinforcing bar 5, it can cope with a change in the diameter of the reinforcing bar 5 and can be firmly fixed to a deformed reinforcing bar having a large number of ribs and a large number of nodes. it can.
(6) Since the sleeve 4 can be fixed from one direction with only one sleeve holder 1 and the fixing work is simple, labor saving of construction can be achieved.

  As shown in FIGS. 6 to 8, the sleeve holder 51 according to the second embodiment is substantially the same as the first embodiment, but instead of the connecting member 13, a connecting member constituted by a male screw member 52 is used. It is what was used.

  A male screw member 52 projects from the projecting end surface of the holding projection 22 instead of the projection 42. A female screw hole 53 is formed on the protruding end surface of the fixing protrusion 32 instead of the recess 43. The tip of the male screw member 52 is screwed into the female screw hole 53. Therefore, if the male screw member 52 is screwed into the female screw hole 53, the distance between the holding protrusion 22 and the fixing protrusion 32 can be reduced. On the other hand, if the male screw member 52 is loosened from the female screw hole 53, the distance between the holding projection 22 and the fixing projection 32 can be increased.

  As described above, since the sleeve holder 51 includes the holding member 11, the fixing member 12, and the connecting member that are substantially the same as those of the first embodiment, there are advantages similar to those of the first embodiment. If the connecting member is constituted by the male screw member 52, the male screw member 52 is screwed into the female screw hole 53 or loosened from the female screw hole 53, whereby the holding protrusion 22 and the fixing protrusion 22 are fixed. Since the distance from the protruding portion 32 can be increased or decreased steplessly, there is an advantage that the distance between the holding protruding portion 22 and the fixing protruding portion 32 can be easily adjusted to a desired size.

  In the first and second embodiments, as shown in FIG. 9, instead of the fixing member 12, the fixing band 33 is not used, and the through hole 37 is not formed in the fixing protrusion 32. Further, the fixing member 62 may be used in which the cross-sectional shape of the fixing contact portion 31 is C-shaped and can be externally fitted to the reinforcing bar 5 from the side.

  As described above, the sleeve holder according to the present invention ensures a sufficient cover thickness of the concrete from the pipe hole to the reinforcing bar, prevents the concrete in contact with the sleeve holder from peeling or cracking, and makes it easy to adjust the position of the sleeve. In addition, it is possible to cope with changes in the diameter of the sleeve and the reinforcing bar, and to fix the sleeve to the reinforcing bar easily and firmly, and to reduce the construction labor.

It is a principal part enlarged front view which shows the state which fixed the sleeve to the reinforcing bar using the sleeve holder which concerns on 1st Embodiment. It is the principal part enlarged plan view seen from the upper part of FIG. FIG. 6 is an exploded front view of the sleeve holder in which the holding binding band and the fixing binding band are omitted, and the holding contact portion and the insertion portion are shown in cross section. It is a principal part enlarged front view which shows the state which constructed the concrete frame which has a piping hole. It is a principal part expanded sectional view seen from the upper direction of FIG. It is a principal part enlarged front view which shows the state which fixed the sleeve to the reinforcing bar using the sleeve holder which concerns on 2nd Embodiment. It is a principal part enlarged plan view seen from the upper part of FIG. FIG. 6 is an exploded front view of the sleeve holder in which the holding binding band and the fixing binding band are omitted, and the holding contact portion and the insertion portion are shown in cross section. It is a principal part enlarged plan view which shows the example using the fixing member which made the cross-sectional shape of the contact part for fixation the C shape.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sleeve holder 2 Concrete frame 3 Piping hole 4 Sleeve 4a Outer peripheral surface 5 Reinforcing bar 11 Holding member 12 Fixing member 13 Connecting member 21 Holding contact portion 21a Outer peripheral surface 21b Inner peripheral surface 22 Holding protrusion 23 Fixing binding band 31 Fixing Contact portion 31a Outer peripheral surface 31b Inner peripheral surface 32 Fixing projection 33 Fixing binding band 41 Connecting piece 51 Sleeve holder 52 Male screw member (connecting member)
53 Female threaded hole 62 Fixing member

Claims (6)

A sleeve for forming a pipe hole penetrating the concrete casing in the thickness direction thereof is a synthetic resin sleeve holder that can be fixed to a reinforcing bar embedded in the concrete casing,
A holding contact portion formed in an arc shape so as to come into contact with the outer peripheral surface of the sleeve, a holding protrusion protruding from the outer peripheral surface of the holding contact portion, and an outer periphery of the holding contact portion A holding member having a holding binding band wound around the outer peripheral surface of the sleeve through the holding contact portion in a state of being locked to a surface and pressing the sleeve against the inner peripheral surface of the holding contact portion When,
The fixing contact portion formed in an arc shape so as to contact the outer peripheral surface of the reinforcing bar, the fixing protrusion portion protruding from the outer peripheral surface of the fixing contact portion, and the fixing member spaced apart from each other A plurality of fixing tie bands wound around the reinforcing bar through the fixing contact part while being locked to the outer peripheral surface of the contact part and pressing the inner peripheral surface of the fixing contact part against the reinforcing bar A fixing member having
A connecting member interposed between the holding protrusion and the fixing protrusion and capable of adjusting a distance between the holding protrusion and the fixing protrusion;
A sleeve holder comprising:   The sleeve holder according to claim 1, wherein the connecting member includes at least one connecting piece that can be added in a length direction.   The sleeve holder according to claim 2, wherein the connecting piece is formed in a plate shape so that a surface direction is parallel to a circumferential direction of the holding contact portion.   The sleeve holder according to claim 1, wherein the connecting member is constituted by a male screw member that protrudes from the holding protrusion and has a tip screwed into a female screw hole formed in the fixing protrusion.   The sleeve holder according to any one of claims 1 to 4, wherein the holding protrusion is formed in a plate shape so that a surface direction is parallel to a circumferential direction of the holding contact portion.   The sleeve holder according to any one of claims 1 to 5, wherein the fixing protrusion is formed in a plate shape so that a surface direction is a direction perpendicular to a circumferential direction of the fixing contact portion.

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