JP5124613B2 - Hollow embedded unit - Google Patents

Description

  The present invention relates to a hollow embedded unit used in a hollow slab method for forming a hollow concrete slab by embedding a plurality of hollow embedded bodies in a concrete slab.

A so-called hollow slab method (also called a void slab method) is known in which a plurality of hollow embedded bodies are embedded in a concrete slab to form a hollow concrete slab having a hollow portion. By forming the hollow concrete slab by the hollow slab method, the following advantages are obtained.
・ Concrete slabs can be reduced in weight and strength. As a result, beams can be eliminated as much as possible, and a large indoor space can be secured.
・ Improves sound insulation of concrete slabs.

  The hollow concrete slab is constructed by placing the bottom and top bars in a grid pattern on the formwork panel; one grid for the bottom grid and the corresponding grid for the top bars A hollow implant is inserted into each of the substantially cubic placement spaces formed by one of the squares and an imaginary line connecting the corners of the squares, one by one from above the top muscle; There is a method in which concrete is placed on the formwork panel so that the streaks, hollow implants and upper end bars are completely buried; after the concrete has hardened, the formwork panel is demolded.

  As the hollow implant used in the hollow slab method, a plurality of hollow implants can be simultaneously arranged in a plurality of arrangement spaces, and the lifting of the hollow implant during concrete placement can be suppressed. There has been proposed a hollow implant unit in which the hollow implants are unitized by connecting them in a row with support bars (Patent Document 1).

However, in this hollow implant unit, the hollow implant is supported only by inserting the support bar into the support bar insertion hole of the support bar mounting piece protruding from the surface of the hollow implant unit. It is movable in the longitudinal direction of the muscle. Therefore, the following problem arises.
-When positioning a hollow implant beforehand according to the pitch of the space for arrangement | positioning, it is necessary to position while measuring the pitch of a hollow implant one by one with a measure etc. in the construction site, and is complicated.
-Since the hollow implants easily move in the longitudinal direction of the support bars, each hollow implant of the hollow implant unit is arranged in the arrangement space even if the hollow implants are positioned at a predetermined pitch. At this time, the position of each hollow implant is easily shifted, and it is difficult to insert all the hollow implants simultaneously into the placement space.

Japanese Patent No. 3990380

  In the present invention, when a plurality of hollow implants are connected in a row with support bars, positioning of the hollow implants at a predetermined pitch and fixing of the hollow implants to the support bars can be simultaneously performed. A hollow implantable unit is provided.

The hollow implant unit of the present invention is a hollow implant unit having a plurality of hollow implants and a support bar connecting the hollow implants in a row at a predetermined pitch,
The support muscle has a rod-like support muscle main body, and a plurality of flange portions formed at a predetermined pitch on the support muscle main body and projecting in a direction perpendicular to the longitudinal direction of the support muscle main body,
The hollow implant has an outer shell having a hollow portion therein, and a support muscle locking portion provided on the surface of the outer shell for locking the support muscle,
A guide groove that is formed on the surface of the outer shell, and that slides the support bar in a direction perpendicular to the longitudinal direction in a state where the flange portion of the support bar is engaged; and the outer shell A hook portion that protrudes from the surface of the guide rod and has a recess into which the support muscle main body of the support muscle that slides in the longitudinal direction of the guide groove is inserted, and is provided on the surface of the outer shell and is inserted into the recess of the hook portion. And a regulating portion that abuts against the supporting muscle main body and regulates the sliding of the supporting muscle to the opening side of the concave portion of the hook portion.

The flange portion of the support bar is formed two more than the number of the hollow implants, and the flange portions located on both sides thereof are formed in the vicinity of the end portion of the support bar body, and the flange It is preferable that the interval between the portion and the inner flange portion closest to the portion is half of the predetermined pitch.
The restricting portion is elastically deformed by being pressed by the support muscle main body when the support muscle main body is inserted into the recess of the hook portion, and the support muscle main body is inserted into the recess of the hook portion. After being done, it is preferable that a tip part contacts the support muscle main body to regulate the slide of the support muscle.

It is preferable that there are two support muscles, and the hollow implant has the support muscle locking portions corresponding to the respective support muscles.
The hollow implant includes an outer shell that can be divided into two parts, a hinge part that connects the two divided outer shells at the peripheral edge of the opening, and the opposite side of the hinge part across the center of the outer shell. It is preferable to have the said supporting-bar latching | locking part provided in the vicinity of the opening peripheral part.

  According to the hollow implant unit of the present invention, when a plurality of hollow implants are arranged in a row with support bars, positioning of the hollow implants at a predetermined pitch and the support bars of the hollow implants are performed. Can be performed simultaneously.

It is a perspective view which shows an example of the hollow implantable body unit of this invention. It is a side view which shows an example of a supporting muscle. It is a top view which shows an example of the hollow implant body of the state where the outer shell closed. It is a side view which shows an example of the hollow implant body of the state which the outer shell closed. It is a top view which shows an example of the hollow implant body of the state where the outer shell opened. It is a side view which shows an example of the hollow implant body of the state where the outer shell opened. It is a perspective view which shows a mode that the hollow implant body unit was piled up in the state which the outer shell opened. It is a perspective view which shows the state which latched the support muscle to the support muscle latching | locking part of a hollow implant. It is a side view which shows the edge part vicinity of the support muscle 10 at the time of connecting the two support muscles 10. FIG. It is a perspective view which shows the other example of the hollow implant body of the state which the outer shell opened. It is a perspective view which shows one process of the construction method of the hollow concrete slab by the hollow slab construction method using the hollow implant body unit of this invention. It is a perspective view which shows one process of the construction method of the hollow concrete slab by the hollow slab construction method using the hollow implant body unit of this invention. It is a perspective view which shows one process of the construction method of the hollow concrete slab by the hollow slab construction method using the hollow implant body unit of this invention.

<Hollow embedded unit>
FIG. 1 is a perspective view showing an example of a hollow implant unit of the present invention.
The hollow implant unit 1 includes two parallel support bars 10; and a plurality of spherical support lines 10 arranged in a row at a predetermined pitch in the longitudinal direction of the support bars 10 by being suspended below the support bars 10. A hollow implant 20.

  The pitch between the hollow implants 20 in the hollow implant unit 1 is the distance between the center of the hollow implant 20 and the center of the hollow implant 20 located adjacent thereto. The pitch between the hollow implants 20 is slightly longer than the dimensions of the hollow implants 20. As a result, the hollow implant 20 does not come into contact with the hollow implant 20 located next to the hollow implant 20 and is continuously provided with a predetermined gap.

The pitch between the hollow implants 20 in the hollow implant unit 1, the width of the gap between the hollow implants 20, and the dimensions of the hollow implant 20 are the strength required for the hollow concrete slab to be finally formed. What is necessary is just to determine suitably according to the thickness of the hollow concrete slab, the magnitude | size of the hollow part of a hollow concrete slab, the space | interval of a hollow part, etc. which are designed suitably according to sound insulation.
The number of hollow implants 20 in the hollow implant unit 1 (the length of the hollow implant unit 1) may be determined as appropriate according to the handleability of the hollow implant unit. In the body unit 1, the number of the hollow implants 20 is five.

(Support muscle)
The support bar 10 is a member for connecting a plurality of hollow implants 20 in a line at a predetermined pitch, and is also a member that is fixed to the upper end bar when placing concrete and suppresses the floating of the hollow implants 20. is there.

  As shown in FIG. 2, the supporting muscles 10 are formed on the supporting muscle main body 12 in the same number as the number of the hollow implants 20 at the same pitch as the pitch of the hollow implants 20; A locking flange portion 14 projecting in a direction perpendicular to the longitudinal direction of the supporting muscle main body 12; two protruding portions formed in the vicinity of the end portion of the supporting muscle main body 12 and perpendicular to the longitudinal direction of the supporting muscle main body 12 And a connecting flange portion 16.

The length and thickness of the supporting muscle main body 12 may be appropriately determined according to the number of hollow implants 20.
The length of the locking flange portion 14 protruding from the support bar main body 12 is a length that can be engaged with a guide groove 42 that constitutes a support bar lock portion 40 of the hollow implant 20 to be described later. Good.

The length of the connecting flange portion 16 protruding from the support bar main body 12 is such that when the two support bars 10 are connected, the connection flange part 16 of one support bar 10 and the connection flange of the other support bar 10 are connected. It is sufficient that the length is such that the portion 16 can be reliably abutted.
The interval between the connecting flange portion 16 and the locking flange portion 14 closest thereto is half the pitch between the locking flange portions 14.

(Hollow embedded body)
The hollow embedded body 20 is a spherical member for forming a hollow portion in the hollow concrete slab.
Examples of the material of the hollow implant 20 include plastic (polypropylene or the like).
The hollow implant 20 is manufactured, for example, by integrally molding plastic by an injection molding method or the like.

  As shown in FIGS. 3 to 6, the hollow implant 20 has a hollow portion inside and can be divided into a hemispherical first divided outer shell 22 and a hemispherical second divided outer shell 24. An outer shell 26; a hinge portion 28 for connecting the first divided outer shell 22 and the second divided outer shell 24 at an opening peripheral edge 27 thereof; and an opening peripheral edge 27 of the first divided outer shell 22 Three locking claw portions 30 provided; three locking hole portions 32 provided in the opening peripheral edge portion 27 of the second divided outer shell 24; first divided outer shell 22 and the second divided outer portion Six load collapse prevention ribs 34 extending from the opening peripheral edge 27 of the shell 24 along the surface in a direction perpendicular to the dividing surface of the outer shell 26; and the openings of the first divided outer shell 22 and the second divided outer shell 24 Four fitting recesses 36 formed in the peripheral portion 27; a first divided outer shell 22 on the opposite side of the hinge portion 28 across the center of the outer shell 26 and Having two supporting muscles locking portion 40 provided on the surface of the shell in the vicinity of the opening edge 27 of the second split shell 24.

The first divided outer shell 22 and the second divided outer shell 24 are hemispherical members obtained by dividing the outer shell 26 into two at the dividing surface, and have a hollow portion by overlapping the respective opening peripheral edges 27. An outer shell 26 is formed.
The split surface is a boundary surface surrounded by a boundary line between the opening peripheral edge 27 of the first split outer shell 22 and the opening peripheral edge 27 of the second split outer shell 24 in a state where the outer shell 26 is closed. When the outer shell 26 is open, the opening surface surrounded by the opening peripheral edge 27 of the first divided outer shell 22 and the opening surface surrounded by the opening peripheral edge 27 of the second divided outer shell 24. It is.

  As shown in FIG. 5, the hinge portion 28 opens the first divided outer shell 22 in a state where the outer shell 26 is divided into a first divided outer shell 22 and a second divided outer shell 24. Two points are provided so as to sandwich a point on the opening peripheral part 27 (hereinafter referred to as a reference point A) where the peripheral part 27, the second divided outer shell 24 and the opening peripheral part 27 are closest to each other.

  The hinge portion 28 is formed with a streak-like thin portion 38 extending in a direction perpendicular to a line connecting the reference point A and the center of the outer shell 26 at the center thereof. As shown in FIG. 6, the first split outer shell 22 and the second split outer shell connected to the hinge portion 28 with the thin wall portion 38 serving as a rotation shaft by bending the hinge portion 28 in the thin wall portion 38. As a result, the outer shell 26 can be opened and closed.

As shown in FIG. 5, the locking claw portion 30 includes the reference point A of the opening peripheral portion 27 of the first divided outer shell 22, and includes four points that divide the opening peripheral portion 27 into four equal circumferences. , And projecting outward from the peripheral edge 27 of the opening at three points B excluding the reference point A.
As shown in FIG. 5, the locking hole portion 32 includes the reference point A of the opening peripheral portion 27 of the second divided outer shell 24, and includes four points that divide the opening peripheral portion 27 into four equal circumferences. , Formed at the opening peripheral edge 27 at three points C excluding the reference point A.

  When the outer shell 26 is closed and the first divided outer shell 22 and the second divided outer shell 24 are brought into contact with each other, the three locking claws 30 of the opening peripheral edge portion 27 of the first divided outer shell 22, The three engaging hole portions 32 of the opening peripheral edge portion 27 of the second divided outer shell 24 formed at the corresponding positions are engaged with each other, and the first divided outer shell 22 and the second divided outer shell 24 are engaged. Are connected.

  The load collapsing prevention rib 34 includes the reference point A of the opening peripheral edge 27 of the first divided outer shell 22, and the support bar locking portion 40 among the four points that divide the opening peripheral edge 27 into four equal circumferences. It is a plate-like member formed to extend from the opening peripheral edge 27 at the two points B and the reference point A excluding the nearby point B along the surface in a direction perpendicular to the dividing surface of the outer shell 26. Further, the load collapse prevention rib 34 includes the reference point A of the opening peripheral edge 27 of the second divided outer shell 24 and includes four points that divide the opening peripheral edge 27 into four equal parts around the circumference. It is a plate-like member formed to extend from the opening peripheral edge portion 27 at the two points C and the reference point A excluding the point C in the vicinity of the portion 40 along the surface in a direction perpendicular to the dividing surface of the outer shell 26.

  As shown in FIG. 7, the load collapse prevention rib 34 has an end of the load collapse prevention rib 34 of the lower hollow implant 20 when the hollow implants 20 are stacked with the outer shell 26 opened. And the opening peripheral edge portion 27 of the first split outer shell 22 and the second split outer shell 24 of the upper hollow implant 20 are in contact with each other, and the first split outer shell 20 of the lower hollow implant 20 By forming an appropriate gap between the outer surfaces of the shell 22 and the second split outer shell 24 and the inner surfaces of the first split outer shell 22 and the second split outer shell 24 of the upper hollow implant 20 The lower hollow implant 20 and the upper hollow implant 20 are prevented from coming into close contact with each other to prevent the upper hollow implant 20 from being difficult to remove, and the stacked hollow implants are stacked during transportation. 20 collapse of the load is suppressed.

The fitting recess 36 is formed in the opening peripheral edge 27 of the first split outer shell 22 and the second split outer shell 24 on the opposite side of the hinge portion 28 across the center of the outer shell 26. On the extension line of the fitting recess 36 in the direction orthogonal to the dividing surface of the outer shell 26, there is a hook portion 44 that constitutes a support bar locking portion 40 described later.
As shown in FIG. 7, when the hollow implants 20 are stacked with the outer shell 26 open, the fitting recesses 36 are formed so that the hook portions 44 of the lower hollow implants 20 It fits into the fitting recess 36 of the embedded body 20 and prevents interference between the hook portion 44 and the opening peripheral edge portion 27 and suppresses collapse of the stacked hollow embedded body 20 during transportation. is there.

(Supporting muscle locking part)
The support muscle locking portion 40 is for locking the support muscle 10.
The support bar locking portion 40 is formed on the outer shell in the vicinity of the opening peripheral edge 27 of the first divided outer shell 22 and the second divided outer shell 24 opposite to the hinge portion 28 across the center of the outer shell 26. Each of the two support bar locking portions 40 provided on the surface corresponds to each of the two parallel support bars 10.

  As shown in FIG. 8, the support bar locking portion 40 is formed on the surface of the outer shell 26, and the support bar 10 is orthogonal to the longitudinal direction of the support bar 10 in a state where the locking flange portion 14 of the support bar 10 is engaged. A guide groove 42 that slides in the direction; a hook portion 44 that has a recess protruding from the surface of the outer shell 26 and into which the support muscle main body 12 of the support muscle 10 that slides in the longitudinal direction of the guide groove 42 is inserted; 26, and a regulating portion 46 that abuts on the support muscle main body 12 inserted into the recess of the hook portion 44 and regulates the sliding of the support muscle 10 toward the opening side of the recess of the hook portion 44.

  The guide groove 42 extends in a direction orthogonal to the dividing surface of the outer shell 26. Therefore, the longitudinal direction of the support bar 10 in which the locking flange portion 14 is engaged with the guide groove 42 is parallel to the split surface of the outer shell 26.

The hook portions 44 are provided at two locations separated in a direction parallel to the dividing surface so as to sandwich the guide groove 42.
The concave portion of the hook portion 44 is formed so as to open in a direction orthogonal to the dividing surface of the outer shell 26 and toward the opening peripheral edge portion 27 side.

The restricting portion 46 is provided at two locations so as to be separated from each other in a direction parallel to the dividing surface so as to sandwich the guide groove 42.
The restricting portion 46 extends from the proximal end portion fixed to the outer shell 26 toward the distal end portion (free end) that contacts the support muscle main body 12 inserted into the recess of the hook portion 44 and the longitudinal direction of the guide groove 42. A plate-like member extending in parallel. In addition, an arc-shaped stepped portion 48 is formed below the restricting portion 46, thereby forming a gap with the outer shell 26.

  When the support muscle main body 12 is inserted into the recess of the hook portion 44, the restricting portion 46 is pressed by the support muscle main body 12 and elastically deforms downward. The support muscle main body 12 is inserted into the recess of the hook portion 44. After the insertion, the elastic deformation is released, the tip of the support muscle main body 12 comes into contact with the support muscle main body 12 to regulate the slide of the support muscle 10, and the support muscle main body 12 is detached from the recess of the hook portion 44. In this, it is elastically deformed downward when pressed by an operator.

(Function and effect)
The hollow implant unit 1 described above has a plurality of locking flange portions 14 in which the support bars 10 are formed at a predetermined pitch. When the plurality of hollow implants 20 are arranged in a row with the support bars 10 in order to engage with the guide grooves 42 of the support bar locking portions 40 provided on the surface of the outer shell 26, the hollow implants 20 can be positioned at a predetermined pitch.

  Further, since the locking flange portion 14 of the support bar 10 is engaged with the guide groove 42, the movement of the support bar 10 in the longitudinal direction is restricted, and further, the support bar main body 12 of the support bar 10 is Since the insertion of the support muscle 10 into the concave portion of the hook portion 44 of the support muscle locking portion 40 of the hollow implant 20 and the restriction portion 46 restricts the sliding of the support muscle 10 toward the opening of the concave portion of the hook portion 44. The hollow implant 20 can be fixed to the support muscle 10.

  Further, the supporting bar 10 has two connecting flange parts 16 formed in the vicinity of the end part of the supporting bar main body 12, and includes a connecting flange part 16 and an inner locking flange part 14 closest to the connecting flange part 16. Since the interval is half the predetermined pitch between the locking flange portions 14, as shown in FIG. 9, the connection flange portion 16 of one support bar 10 and the connection flange portion of the other support bar 10 are provided. 16 so that the interval between the locking flange portion 14 of one supporting bar 10 and the locking flange portion 14 of the other supporting bar 10 is substantially the same as a predetermined pitch. In addition, the two support muscles 10 can be connected.

  Further, when the support portion main body 12 is inserted into the recess of the hook portion 44, the restricting portion 46 is elastically deformed by being pressed by the support muscle main body 12, and the support portion main body 12 is inserted into the recess of the hook portion 44. Since the elastic deformation is released and the tip of the support muscle 12 comes into contact with the support muscle main body 12 to regulate the slide of the support muscle 10, the support muscle 10 is attached to the support muscle locking portion 40. And fixing can be easily performed by elastic deformation of the restricting portion 46.

  Further, since the restricting portion 46 is elastically deformed, when the support muscle main body 12 is detached from the concave portion of the hook portion 44, the removal of the support muscle 10 from the support muscle locking portion 40 is caused by the restriction portion 46. It can be easily performed by elastic deformation. For example, among the plurality of hollow implants 20 arranged in a row, even if it is necessary to remove some of the hollow implants 20 due to problems with the hollow implants 20, Only the implant 20 can be removed from the support muscle 10.

  Further, since the support muscles 10 are two and the hollow implants 20 have the support muscle locking portions 40 corresponding to the respective support muscles 10, the hollow implants 20 having the support muscles 10 as the rotation axis are used. The rotation is suppressed, and the floating of the hollow embedded body 20 during concrete placement can be suppressed.

  In addition, the hollow embedded body 20 has a hinge part 28 for connecting the outer shell 26 that can be divided into two parts, the first divided outer shell 22 and the second divided outer shell 24 that are divided into two at the opening peripheral edge part 27. Therefore, a plurality of hollow implants 20 or hollow implant units 1 can be stacked with the outer shell 26 open, and a larger number of hollow implants than when transporting with the outer shell 26 closed. The body 20 or the hollow implant unit 1 can be transported.

  Further, since the support bar engaging portion 40 is provided in the vicinity of the opening peripheral edge portion 27 on the opposite side of the hinge portion 28 across the center of the outer shell 26, a plurality of hollows are opened in the state where the outer shell 26 is opened. When stacking the implant unit 1, as shown in FIG. 7, the support muscles 10 are located on both sides, and the support muscles 10 are obstructive when stacking the hollow implant unit 1. Absent. In the state where the outer shell 26 is closed, as shown in FIG. 8, the two support muscles 10 are positioned in parallel above the plurality of hollow implants 20 connected in a row, The handleability of the hollow embedded unit 1 and the workability when forming a hollow concrete slab by the hollow slab construction method are improved.

(Other forms)
The hollow implant unit of the present invention is not limited to the hollow implant unit 1 in the illustrated example.
For example, the shape of the hollow implant is not limited to the spherical shape shown in the drawing, and may be an ellipsoid or a cube. However, spherical or ellipsoidal shape is preferable and spherical shape is particularly preferable from the viewpoint of strength against pressure during concrete pouring.

  Further, the number of support bars (the number of support bar locking portions 40) is not limited to two in the illustrated example, and may be one or three or more. However, since the rotation of the hollow implant 20 with the support bar 10 as the rotation axis is suppressed and the floating of the hollow implant 20 at the time of concrete placement can be suppressed, the number of the support bars is preferably plural, From the viewpoint of easy provision of the hollow implants 20, the number of support bars is particularly preferably two.

As shown in FIG. 10, the hollow implant 20 may be provided with cross-shaped reinforcing ribs 49 on the inner surfaces of the first divided outer shell 22 and the second divided outer shell 24. . The end surface of the reinforcing rib 49 facing the opening surface is preferably set to have the same radius of curvature as the radius of curvature of the surface of the outer shell 26 from the viewpoint of easy stacking of the hollow implants 20 with the outer shell 26 open. .
By providing the reinforcing ribs 49, distortion of the outer shell 26 is suppressed, and the appearance of the hollow implant 20 is improved; the hollow implant 20 with the outer shell 26 open can be stably stacked, and Further, the deformation of the outer shell 26 during storage is suppressed; the strength of the hollow embedded body 20 against the pressure at the time of placing the concrete is increased;

<Construction method>
Hereinafter, the construction method of the hollow concrete slab by the hollow slab construction method using the hollow embedded body unit of the present invention will be described.
First, as shown in FIG. 11, the lower end stripes 52 and the upper end stripes 54 are arranged on the form panel 50 in a lattice shape so that the positions of the grids coincide with each other in the height direction. Bundling is performed at a location where the 52 intersects with each other and a location where the upper end bars 54 intersect. Further, a plurality of hook anchors 56 for positioning the upper end stripe 54 are prepared, and the lower end anchor of the hook anchor 56 is attached to the formwork panel 50 in a state where the upper end hook 54 is hooked on the upper end stripe 54. Insert it into the hole and fix it.

  Next, as shown in FIG. 12, a substantially cube formed by one grid of the lattice of the lower streak 52, one grid of the grid of the upper streak 54 corresponding thereto, and a virtual line connecting the corners of each grid. A plurality of hollow implant units 1 are arranged from above the upper end muscle 54 so that the hollow implants 20 are inserted one by one in each of the arrangement spaces, and the support bars 10 of the hollow implant unit 1 are arranged. In a state where is stretched over the upper end muscle 54, the support muscle 10 and the upper end muscle 54 are bound at the intersection.

Next, as shown in FIG. 13, concrete 58 is placed on the formwork panel 50 so that the lower end reinforcement 52, the hollow implant unit 1 and the upper end reinforcement 54 are completely embedded.
After the concrete is hardened, the formwork panel 50 is removed, and a hollow concrete slab is completed.

  The hollow embedded body unit of the present invention is useful as a hollow embedded body when a hollow concrete slab is constructed by a hollow slab method.

DESCRIPTION OF SYMBOLS 1 Hollow embedding unit 10 Supporting muscle 12 Supporting muscle main body 14 Locking flange part 16 Connecting flange part 20 Hollow embedded body 22 1st division | segmentation outer shell 24 2nd division | segmentation outer shell 26 Outer shell 27 Opening peripheral part 28 Hinge part 40 Support bar locking part 42 Guide groove 44 Hook part 46 Restriction part

Claims (5)

A plurality of hollow implants;
A hollow implant unit having a support bar that connects the hollow implants in a row at a predetermined pitch,
The support muscle is
A rod-shaped support muscle body;
A plurality of flange portions formed at a predetermined pitch on the support muscle main body and projecting in a direction orthogonal to the longitudinal direction of the support muscle main body;
The hollow implant is
An outer shell having a hollow portion inside,
A support muscle locking portion provided on a surface of the outer shell for locking the support muscle;
The support muscle locking portion is
A guide groove that is formed on the surface of the outer shell and slides the support bar in a direction perpendicular to the longitudinal direction in a state where the flange portion of the support bar is engaged;
A hook portion protruding from the surface of the outer shell and having a recess into which a support muscle main body of the support muscle that slides in the longitudinal direction of the guide groove is inserted;
A regulating portion that is provided on the surface of the outer shell and that abuts on the support muscle main body inserted into the recess of the hook portion and regulates sliding of the support muscle toward the opening side of the recess of the hook portion. Hollow embedded unit.   The number of the flange portions of the support muscles is two more than the number of the hollow implants, and the flange portions located on both sides thereof are formed in the vicinity of the end portion of the support muscle main body, and the flanges. The hollow implantable unit according to claim 1, wherein an interval between the portion and an inner flange portion closest to the portion is half the predetermined pitch.   When the restricting portion inserts the support muscle main body into the recess of the hook portion, it is elastically deformed by being pressed by the support muscle main body, and the support muscle main body is inserted into the recess of the hook portion. 3. The hollow implant unit according to claim 1, wherein a tip portion of the support muscle main body comes into contact with the support muscle main body and the slide of the support muscle is regulated after being done. The supporting muscles are two,
The hollow implant body unit according to any one of claims 1 to 3, wherein the hollow implant body has the support bar engaging portions corresponding to the respective support bars. The hollow implant is
A shell that can be divided into two parts;
A hinge portion that connects the outer shells divided into two at the peripheral edge of the opening;
The hollow implant according to any one of claims 1 to 4, further comprising: a supporting muscle locking portion provided in the vicinity of an opening peripheral portion on the opposite side of the hinge portion across the center of the outer shell. unit.

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