JP7349946B2 - Buried parts and installation structure of buried parts - Google Patents

Description

The present invention relates to a buried member that suppresses damage to an installation surface when a large external force is applied to a structure, and an installation structure for the buried member.

Embedded members such as anchor bolts and anchor nuts that are fixed in a buried hole using a filler such as mortar or concrete that solidifies after being filled in a fluid state have been used in the past, and various inventions related to these have been disclosed.

For example, Patent Document 1 discloses a feature in which a fixing member is fixed to the lower end of an anchor bolt buried in concrete, and a fixing tube having irregularities on the outer surface or the outer surface and the inner surface is arranged around the fixing member. An anchor bolt fixing structure is disclosed.

Japanese Patent Application Publication No. 11-172780

The anchor bolt fixing structure shown in Patent Document 1 secures the fixing strength of the anchor bolt by arranging a fixing tube around a fixing member fixed to the lower end of the anchor bolt. However, when an anchor bolt fixing structure such as that disclosed in Patent Document 1 is used for a vehicle protection fence and a vehicle comes into contact with it, the external force applied to the anchor bolt may cause damage such as cracking of the installation surface on which the anchor bolt is buried and fixed. There was a risk that this would occur.

The present invention provides a buried member that can suppress damage to an installation surface when a large external force is applied to a structure, and an installation structure for the buried member.

In order to achieve the above object, the present invention has the following configuration.
That is, the buried member according to the present invention is a buried member that is placed in a buried hole formed in an installation surface and fixed in the buried hole with a filler that solidifies after being filled into the buried hole, The buried member includes a fastening part having a male threaded part or a female threaded part, and a wall part disposed outside the fastening part, the wall part being formed in a cylindrical shape, and the fastening part inside the wall part. A gap is formed between the outer surface of the fastening portion and the inner surface of the wall when the fastening portion is stored, and the wall can be arranged so that the height position of the upper end of the wall substantially coincides with the installation surface. The present invention is characterized in that the lower end of the wall portion is located above the lower end of the fastening portion.

According to the buried member according to the present invention, the fastening portion includes a male threaded portion or a female threaded portion, and a wall portion disposed outside the fastening portion, the wall portion is formed in a cylindrical shape, and the fastening portion is provided inside the fastening portion. Since a gap is formed between the outer surface of the fastening section and the inner surface of the wall, the filling material in the buried hole is filled on the outside of the wall, and the inside of the wall is filled with the filling material. is filled into the gap. Further, since the height position of the upper end of the wall portion can be arranged so as to substantially match the installation surface, the buried member can be buried and fixed in the wall with the upper end of the wall portion substantially matching the installation surface. The upper surface of the filler on the outside and the upper surface of the filler filled into the gap inside the wall are partitioned by the wall. As a result, when a large external force is applied to the structure installed on the installation surface and the force is transmitted to the fastening part, cracks or cracks that occur in the filler filled in the gap near the fastening part can be removed. Since it is blocked by the wall, it is difficult to reach the outside thereof, and damage to the filling material outside the wall and the installation surface outside the burial hole can be suppressed.
Moreover, since the lower end of the wall is formed to be located above the lower end of the fastening part, the filler filled in the buried hole and placed on the outside of the wall passes through the lower part of the wall and into the gap. Since the filling material is filled into the space below the wall, no interface is formed between the filling material in the gap and the filling material outside the wall, and the solidified filling material is formed more firmly.

Furthermore, by providing a connecting part that connects the fastening part and the wall part, the positional deviation between the fastening part and the wall part is unlikely to occur. This can prevent a situation in which the shape of the gap is greatly distorted.
Further, it is preferable to provide at least a portion of the connecting portion to be buried within the filling material, since the connecting portion is difficult to come off from the filling material and detachment of the buried member from the embedding hole can be suppressed.

Furthermore, if the connection part is formed integrally with the wall part and a cutout-shaped breaking part is formed in the connection part, a large external force is applied to the structure installed on the installation surface, and the fastening part When a force is transmitted to the wall, the connecting portion breaks at the position where the breaking portion is formed, and the force transmitted from the fastening portion to the wall via the connecting portion can be reduced. By reducing the applied force, damage to the filling material on the outside of the wall and the members constituting the installation surface can be suppressed.

Moreover, according to the installation structure of the buried member according to the present invention, the fastening part includes a male threaded part or a female threaded part, and a wall part disposed outside the fastening part, and the wall part is formed in a cylindrical shape, Since the fastening part is stored inside the fastening part and a gap is formed between the outer surface of the fastening part and the inner surface of the wall part, the filling material in the burial hole is filled into the outside of the wall part. At the same time, the gap inside the wall is filled. Furthermore, since the height position of the upper end of the wall is arranged to substantially match the installation surface, the upper surface of the filler on the outside of the wall and the upper surface of the filler filled into the gap inside the wall are partitioned by the wall. As a result, when a large external force is applied to the structure installed on the installation surface and the force is transmitted to the fastening part, cracks or cracks that occur in the filler filled in the gap near the fastening part can be removed. Since it is blocked by the wall, it is difficult to reach the outside thereof, and damage to the filling material outside the wall and the installation surface outside the burial hole can be suppressed.
Furthermore, the lower end of the wall is arranged above the lower end of the fastening part, and the filler filled on the outside of the wall is filled into the gap through the lower part of the wall. There is no interface between the filler in the gap and the filler outside the wall below the wall, and the buried member can be installed using the more strongly formed filler.

According to the buried member and the installation structure of the buried member of the present invention, damage to the installation surface can be suppressed when a large external force is applied to the structure.

FIG. 1 is a plan view showing an embodiment of an installation structure for a buried member according to the present invention. 2 is a sectional view taken along line AA in FIG. 1. FIG. 1 and 2, (a) is a plan view, and (b) is a front view, showing the fastening portion of FIGS. 1 and 2. (A) is a plan view, and (B) is a front view, showing an example of a construction tool used when installing the buried member of FIG. 1. FIG. 5 is a plan view showing a state in which the embedding member of FIGS. 1 and 2 is attached to the construction tool of FIG. 4 and placed in a burying hole. 6 is a sectional view taken along line AA in FIG. 5. FIG. It is a top view which shows another form of implementation of the embedded member based on this invention. 8 is a sectional view taken along line AA in FIG. 7. FIG. It is a figure which shows an example of the construction tool used when installing the buried member of FIG. FIG. 9 is a longitudinal sectional view showing a state in which the construction tool of FIG. 9 is attached to the buried member of FIG. 7; FIG. 8 is a longitudinal sectional view showing a state in which the buried member of FIG. 7 is installed. It is a top view which shows another form of implementation of the embedded member based on this invention. 13 is a sectional view taken along line AA in FIG. 12. FIG. 13 is a longitudinal cross-sectional view showing a state in which the construction tool of FIG. 9 is attached to the buried member of FIG. 12. FIG. FIG. 13 is a longitudinal cross-sectional view showing a state in which the buried member of FIG. 12 is installed. It is a top view which shows another form of implementation of the embedded member based on this invention. FIG. 16 is a sectional view taken along line AA in FIG. 16; FIG. 17 is a longitudinal cross-sectional view showing a state in which the buried member of FIG. 16 is installed. It is a top view which shows another form of implementation of the embedded member based on this invention. 20 is a sectional view taken along line AA in FIG. 19. 19A is a plan view and FIG. 19B is a front view showing the fastening portion of FIG. 19. FIG. 16 is a plan view showing the connection portion of FIG. 15; 23 is a sectional view taken along line AA in FIG. 22. FIG. FIG. 20 is a longitudinal cross-sectional view showing a state in which the buried member of FIG. 19 is installed. FIG. 3 is a sectional view showing a situation in which the buried member shown in FIG. 2 has been removed from the installation surface. FIG. 6 is a cross-sectional view showing a situation where the anchor nut embedded and fixed in the installation surface is pulled out from the installation surface. FIG. 7 is a perspective view showing another embodiment of the buried member according to the present invention. FIG. 28 is a plan view of FIG. 27; 29 is a sectional view taken along line AA in FIG. 28. FIG. 30 is an enlarged view showing a broken portion of the connection portion in FIG. 29; FIG. FIG. 28 is a longitudinal cross-sectional view showing a state in which the buried member of FIG. 27 is installed.

Embodiments of the invention will be specifically described based on the drawings.
FIG. 1 is a plan view showing an embodiment of an installation structure for a buried member 1 according to the present invention, and FIG. 2 is a sectional view taken along line AA in FIG.
The buried member 1 includes a fastening part 2 having a female threaded part 21 capable of fastening the male thread of a bolt B, and a cylindrical wall part 3. The fastening part 2 and the wall part 3, which are formed separately, are connected to an installation surface It is placed in a buried hole H that is circular in plan view and is fixed by a filler F that is filled into the buried hole H and then solidified. The fastening portion 2 is installed with the axis of the female screw portion 21 perpendicular to the installation surface G.

FIG. 3 shows the fastening portion 2 of FIGS. 1 and 2, in which (a) is a plan view and (b) is a front view.
The fastening portion 2 is a so-called anchor nut that is used by being buried and fixed at the installation location.
The fastening portion 2 is formed into a bottomed cylindrical shape with the female threaded portion 21 opening upward. In addition, the fastening part 2 has an inclined part 23 formed at the lower part in a substantially truncated conical shape whose outer diameter increases toward the lower part, and the upper part of the inclined part 23 is formed in a shape with a constant outer diameter. ing.
By providing the inclined portion 23, the fastening portion 2 embedded and fixed in the filler F is prevented from coming off upward.

The wall portion 3 is a cylindrical body including a cylindrical wall 31, and is specifically formed of a round steel pipe.
The cylindrical wall 31 is a cylindrical body whose inner diameter is larger than the outer diameter of the fastening part 2, and when the fastening part 2 is inserted into the hollow part 32 inside the cylindrical wall 31, the fastening part 2 and the cylindrical wall 31 A gap S1 is formed between the two.

FIG. 4 shows an example of the construction tool 9 used when installing the buried member 1 of FIG. 1, in which (a) is a plan view and (b) is a front view.
The construction tool 9 shown in FIG. 4 includes a base material 91 in the shape of a rectangular flat plate, and magnetic attachment parts 93 are provided on both sides of the base material 91 in the width direction.
Each magnetically attached part 93 is a rod-shaped magnet, and the magnetically attached part 93 is formed by attaching quadrangular prism-shaped magnets to both edges of the base material 91, respectively. Further, the lower surface of each magnetic attachment part 93 is formed into a flat surface, and is arranged flush with the lower surface of the base material 91, respectively.
The base material 91 is formed with a round-shaped through hole 92 that passes through the base material 91 in the vertical direction. The through hole 92 is arranged at the center of the base material 91 in the longitudinal direction and the width direction, and is formed in a size that allows the male threaded portion of the bolt B that can be screwed into the female threaded portion 21 of the fastening portion 2 to be inserted therethrough. .

FIG. 5 is a plan view showing a state in which the embedding member 1 of FIGS. 1 and 2 is attached to the construction tool 9 of FIG. 4 and placed in the embedding hole H, and FIG. 6 is a sectional view taken along the line AA of FIG. 5.
The fastening part 2 of the buried member 1 shown in FIGS. 5 and 6 has a bolt B whose male threaded part is inserted into the through hole 92 of the construction tool 9 and a female threaded part 21, and the upper end of the fastening part 2 is attached to the base material. It is in contact with the lower surface of 91.
Further, the wall portion 3 of the buried member 1 shown in FIGS. 5 and 6 is attached to the construction tool 9 by having its upper end magnetically attached to the lower surface of each magnetic attachment portion 93.
That is, when attached to the construction tool 9, the fastening part 2 and the wall part 3 are arranged so that the positions of their respective upper ends in the vertical direction match.
The construction tool 9 shown in FIGS. 5 and 6 has the lower surface of each end on both sides in the longitudinal direction of the base material 91 in contact with the installation surface G, and the buried member 1 attached to the construction tool 9 is connected to the fastening part 2. Each upper end of the wall portion 3 is housed in the burial hole H with the position of each upper end aligned with the installation surface G.

As shown in FIGS. 5 and 6, when the buried member 1 is attached to the construction tool 9, the fastening portion 2 is arranged near the center of the wall portion 3. In other words, the construction tool 9 functions as a connecting part that connects the fastening part 2 and the wall part 3, which are formed separately.
When connected via the construction tool 9, the fastening part 2 is housed inside the hollow part 32 of the wall part 3, and a gap S1 is formed between the outer surface of the fastening part 2 and the inner surface of the wall part 3. Ru.
Further, in a state where the parts are connected via the construction tool 9, the lower end of the cylindrical wall 31 of the wall part 3 is arranged above the lower end of the fastening part 2.
Further, when the buried member 1 attached to the construction tool 9 is stored in the buried hole H, the lower end of the fastening portion 2 and the lower end of the wall portion 3 are arranged so as to be spaced apart upward from the bottom surface of the buried hole H. It is set up in

Filler material F before hardening is poured into the burial hole H shown in FIGS. 5 and 6 until it reaches the installation surface G, and after the filler material F has hardened, the bolt B is unscrewed from the fastening part 2 and the construction tool 9 is removed. By removing it, the installation structure of the buried member 1 shown in FIGS. 1 and 2 can be obtained.
In the filling material F in the buried hole H, the part filled on the outside of the wall part 3 and the part filled in the inside hollow part 32 are connected below the cylindrical wall 31 without an interface. The fastening portion 2 is firmly fixed within the buried hole H.
The buried member 1 is provided so that the lower end of the cylindrical wall 31 is located above the lower end of the fastening part 2 when it is attached to the construction tool 9. Even if the buried hole H is formed at such a depth that the lower ends abut, the fillers F located on the outside and inside of the wall portion 3 are well connected below the cylindrical wall 31.
The filler F for fixing the buried member 1 can be selected from or combined with various materials that harden from a flowable state, such as mortar, cement, or synthetic resin adhesive.

The embedded member 1 shown in FIGS. 1 and 2 can have a male thread screwed into the female threaded part 21 of the fastening part 2, and can be used for installing a structure on the installation surface G. For example, the road surface on which a vehicle travels can be used as the installation surface G, and the buried member 1 can be used to install road ancillary equipment such as road markings and lane separators.
Generally, when external force is applied due to a vehicle coming into contact with a structure such as the above-mentioned road equipment, filling of a buried hole to fix buried members such as anchor bolts and anchor nuts used to install the structure is filled. Damage such as cracks and splits may occur in the material. If the external force is extremely large, the cracks and cracks that occur will not be confined to the filling material, but will extend to the edge of the burial hole, causing damage to the road surface that makes up the installation surface G, requiring a great deal of effort to restore it. There was a risk of a situation.
In the buried member 1 shown in FIGS. 1 and 2, the cylindrical wall 31 acts as a partition in the upper part of the buried hole H, and the filler F on the inside and outside of the wall portion 3 is separated. When the installed structure receives a large external force and the filler F near the fastening part 2 is damaged, the cylindrical wall 31 blocks the cracks and cracks that occur, and the filler F outside the wall 3 and the installation surface Damage to the members constituting G can be suppressed. Then, by suppressing damage to the installation surface G and limiting the damage that occurs within the area within the buried hole H, the buried member 1 can be restored more easily. Specifically, a hole smaller than the buried hole H is formed in the filling material F in the buried hole H, the existing buried member 1 is removed, and another buried member 1 is newly accommodated in this hole, and then filled. The material can be poured in, cured, and installed. That is, in the installation work of a new buried member 1, the work can be performed only inside the initially formed buried hole H without damaging the members forming the installation surface G.

FIG. 25 is a sectional view showing a situation in which the buried member 1 shown in FIG. 2 has been removed from the installation surface G, and FIG. 26 is a sectional view showing a situation in which the anchor nut N buried and fixed in the installation surface G has been removed from the installation surface. It is a diagram.
The anchor nut N shown in FIG. 26 is formed in the same shape as the fastening part 2 of the buried member 1 shown in FIGS. 1 and 2, and the cylindrical wall of the wall part 3 is arranged around the anchor nut N in FIG. The only difference from FIG. 25 is that there is no configuration.
When a strong tensile force is applied to a general anchor nut or anchor bolt to pull it out from the installation surface, as shown in Fig. 26, the buried hole H is filled starting from the anchor nut N, etc. to which the external force was applied. Damage called so-called cone-shaped fracture may occur, in which the members constituting the filler F and the installation surface G crack in a conical shape and come off.
FIG. 26 shows that a tensile force is applied to the anchor nut N that has been buried and fixed, and the filler F that was fixing it and the members that make up the installation surface G form a conical block whose tip is the lower end of the anchor nut N. This shows the state in which it has been detached from the installation surface G.
When a cone-shaped fracture occurs, the fracture surface D1 around the detached anchor nut N portion tends to occur at a constant angle An with respect to the installation surface G. The above-mentioned angle An changes depending on the constituent members of the installation surface G, the material of the filler F, etc., but in general concrete, the fracture surface D1 occurs at an angle of 45 degrees with respect to the installation surface. In addition, for materials other than concrete as well, for example, for the constituent materials and fillers F of the installation surface G on which anchor nuts N, etc. used for installing road equipment such as fences and posts, etc., the installation surface G A fracture surface D1 occurs at an angle of approximately 50 degrees or less with respect to the surface. When the anchor nut N or anchor bolt is pulled out from the installation surface G in this way, a large fracture surface D2 is formed on the installation surface G side, and does not remain only inside the buried hole H, but forms the installation surface G. It may even reach the parts.

As shown in FIG. 25, when the buried member 1 shown in FIG. A fracture surface D1 is formed starting from the lower end of the fastening portion 2 made of a nut. However, as shown in FIG. 25, the fracture surface D1 connected to the lower end of the fastening portion 2 is connected to the lower end of the cylindrical wall 31 and is formed along the outer surface of the cylindrical wall 31. In other words, in the buried member 1 shown in FIG. It's coming off like it's being pulled out.
In this way, even when the buried member 1 including the wall portion 3 is subjected to a strong external force that causes it to be pulled out from the installation surface G, the filling material F outside the cylindrical wall 31 and the installation surface outside the burial hole H Damage to the members constituting G can be suppressed.

The detachment of the buried member 1 from the installation surface G as shown in FIG. 25 occurs when the fracture surface D1 generated starting from the lower end of the fastening portion 2 connects to the lower end of the cylindrical wall 31. Therefore, by setting the angle An2 between the line connecting the lower end of the fastening portion 2 to the lower end of the cylindrical wall 31 and the installation surface G to be smaller than the angle An1 shown in FIG. can be easily connected to the cylinder wall 31. When the angle An2 is set smaller than the angle An1 shown in FIG. 26, the fracture surface D1 that occurs starting from the lower end of the fastening portion 2 is formed below the lower end of the cylindrical wall 31 without connecting to the cylindrical wall 31. , the possibility of a conical fracture surface D1 as shown in FIG. 26 increases.
Furthermore, if the angle An2 between the line connecting the lower end of the fastening part 2 to the lower end of the cylinder wall 31 and the installation surface G is 0 degrees or more, then the lower end of the fastening part 2 is the lower end of the cylinder wall 31. The fracture surface D1 starting from the lower end of the fastening portion 2 can be easily formed by being disposed lower than the fastening portion 2.
That is, the buried member 1 is perpendicular to a line connecting the lower edge of the fastening part 2 to the lower end of the cylindrical wall 31 and an axis of the female threaded part 21 of the fastening part 2, which is likely to be arranged parallel to the installation surface G. It is preferable that the angle An2 with the surface is set to a value of 0 degrees or more and 50 degrees or less. Furthermore, by setting the angle An2 smaller, the fracture surface D1 can easily connect to the lower end of the cylinder wall 31. Therefore, by setting the angle An2 to be between 0 degrees and 35 degrees, the fracture surface D1 can be connected to the outside of the cylinder wall 31. The possibility that the fracture surface D1 will occur can be further reduced.
The angle An2 between the line connecting the lower edge of the fastening part 2 to the bottom end of the cylindrical wall 31 and the perpendicular plane to the axis of the internally threaded part 21 of the fastening part 2 determines the length of the member constituting the cylindrical wall 31. Its size can be easily adjusted by changing it. Further, the size of the angle An2 may be adjusted by changing the diameter of the cylindrical wall 31, or by changing the fastening portion 2 to another member having different upper and lower lengths and outer shapes. It's okay. By selecting or combining each of the above methods, it is possible to adjust the size of the angle An2 and to adjust the balance between the rigidity and the embedded strength of the fastening portion 2 and the wall portion 3.
Furthermore, in the buried member 1 shown in FIG. The angle is 38 degrees.

The buried member 1 shown in FIGS. 1 and 2 has a cylindrical wall 31 made of a round steel tube, and its outer surface is formed into a smooth surface with few irregularities. By making the outer surface of the cylindrical wall 31 smooth in this way, the filler F adhering to this outer surface can be easily peeled off, so that when the buried member 1 is removed from the installation surface G, as shown in FIG. The fracture surface D1 is easily formed along the outer surface of the cylinder wall 31.
In other words, by making the protrusions protruding outward from the outer surface of the cylinder wall 31 and the recesses and through-holes directed toward the inside of the cylinder wall 31 smaller, or by providing fewer of them, fractures along the cylinder wall 31 can be prevented. As shown in FIGS. 1 and 2, by providing the outer surface of the cylindrical wall 31 as a smooth surface without the protrusions, recesses, or through holes, the formation of the surface D1 can be promoted. The formation of D1 can be further promoted.
In addition, for the purpose of forming the fracture surface D1 along the outer surface of the cylinder wall 31, it is preferable to provide the outer surface of the cylinder wall 31 with a smooth surface with few penetration parts such as unevenness and holes. In order to fix the wall 31 with necessary strength, irregularities, through holes, etc. may be appropriately provided on the outer surface of the cylindrical wall 31.

FIG. 7 is a plan view showing another embodiment of the buried member 1 according to the present invention, and FIG. 8 is a sectional view taken along the line AA in FIG.
The buried member 1 shown in FIGS. 7 and 8 differs from the buried member 1 shown in FIGS. 1 and 2 mainly in that it has a connecting part 4 that connects the wall part 3 and the fastening part 2. .
That is, the buried member 1 shown in FIGS. 7 and 8 includes a fastening part 2 made of an anchor nut formed in the same shape as that shown in FIGS. 1 and 2, and a wall part 3 made of a round steel pipe. The fastening part 2 is housed in a hollow part 32 inside the. Further, a gap S1 is formed between the fastening part 2 located approximately at the center of the wall part 3 and the cylindrical wall 31.

The connecting portion 4 shown in FIGS. 7 and 8 is a metal plate formed into a substantially rectangular flat plate shape, and is attached to the wall portion 3 with its upper surface aligned with the upper end of the cylindrical wall 31.
Specifically, each of the four corners of the connecting portion 4 is provided in a shape and arrangement corresponding to the inner shape of the cylindrical wall 31 of the wall portion 3, and each corner portion is provided on the inner circumferential surface of the cylindrical wall 31. It is attached so that it is in contact with the The connecting portion 4 is press-fitted inside the cylindrical wall 31 and is attached so as not to come off with a small force.
Furthermore, a gap S2 is formed between the edge portions of the connecting portion 4 other than the corner portions and the cylindrical wall 31, and this gap S2 allows the hollow portion 32 of the wall portion 3 to be positioned above the connecting portion 4. It is set up so that it communicates with the space.

A circular through hole 41 through which the male threaded portion of the bolt B can be inserted is provided at the center of the connecting portion 4.
The through hole 41 is formed to have a smaller size than the outer shape of the upper part of the fastening part 2, and as shown in FIG. The upper end of the fastening part 2 is provided so as to be able to come into contact with the lower surface of the connecting part 4.
Note that the connecting portion 4 and the fastening portion 2 shown in FIG. 8 are only in contact with each other, and are not fixed by adhesion, welding, or the like.

FIG. 9 is a diagram showing an example of the construction tool 9 used when installing the buried member 1 of FIG. 7.
The construction tool 9 shown in FIG. 9 differs from the construction tool 9 shown in FIG. 4 only in that it does not include a magnetic attachment part 93.
That is, the construction tool 9 shown in FIG. 9 has a base material 91 formed in the same shape as the base material 91 of the construction tool 9 shown in FIG. A through-hole 92 is formed through which the male threaded portion can be inserted.

FIG. 10 is a longitudinal sectional view showing a state in which the construction tool 9 of FIG. 9 is attached to the buried member 1 of FIG. 7.
Similar to the construction tool 9 shown in FIG. 4, the construction tool 9 shown in FIG. ing.
Further, in the connecting portion 4 disposed above the fastening portion 2, the male threaded portion of the bolt B is inserted into the through hole 41, and its upper surface is brought into contact with the lower surface of the base member 91. That is, the wall portion 3 to which the connecting portion 4 is attached is similarly arranged at a position where the upper end of the cylindrical wall 31 comes into contact with the lower surface of the base material 91.

Similar to the construction tool 9 shown in FIGS. 5 and 6, the lower surfaces of both longitudinal ends of the construction tool 9 shown in FIG. The buried member 1 shown in FIG. 7 can be fixed in the buried hole H by pouring the filler F and hardening it, unscrewing the bolt B and removing the construction tool 9.
Further, as shown in FIG. 10, when the construction tool 9 is attached, the hollow part 32 inside the wall part 3 and the space above the connecting part 4 communicate with each other through the gap part S2. When pouring the filler F into the hole H, air does not accumulate in the hollow part 32 in the cylindrical wall 31 and flows outward through the gap S2. Therefore, the gap S1 between the fastening portion 2 and the wall portion 3 can be filled with the filler F in a good manner.

FIG. 11 is a longitudinal sectional view showing a state in which the buried member 1 of FIG. 7 is installed.
The buried member 1 shown in FIG. 11 has the same structure as the installation structure of the buried member 1 shown in FIG. Since the inner filler F is separated by the cylindrical wall 31, when the filler F near the fastening part 2 is damaged by an external force from the structure connected to the female threaded part 21, the resulting cracks and cracks can be prevented. It is blocked by the cylindrical wall 31, and damage to the filling material F on the outside of the wall portion 3 and the members constituting the installation surface G can be suppressed.
That is, by suppressing damage to the installation surface G and limiting the damage that occurs within the buried hole H, the buried member 1 can be restored more easily.
In the buried member 1 shown in FIG. 7, the angle between the line connecting the lower edge of the fastening part 2 to the lower end of the cylindrical wall 31 and the vertical plane with respect to the axis of the internally threaded part 21 of the fastening part 2 is 45 degrees. When the buried member 1 is pulled out from the installation surface G, the fracture surface D1 generated starting from the lower end of the fastening portion 2 connects to the lower end of the cylindrical wall 31. It is provided to encourage the formation of a fracture surface D1 along the outer surface of the cylinder wall 31.

The buried member 1 shown in FIG. 11 has the same installation structure as the buried member 1 shown in FIG. Therefore, the fastening portion 2 and the wall portion 3 are more firmly fixed by the hardened filler F.

In the buried member 1 shown in FIG. 11, the connection part 4 is attached to the wall part 3. Therefore, by screwing the bolt B inserted into the through hole 41 into the female thread part 21, the fastening part 2 and the wall part 3 can be connected. The fastening part 2 can be easily placed in the center of the wall part 3 by connecting the two parts. Therefore, in the work of embedding and fixing the embedding member 1 in the embedding hole H, positional displacement between the fastening portion 2 and the wall portion 3 is less likely to occur, and installation can be made easier.
Further, the buried member 1 shown in FIG. 11 is provided so that the lower surface of the connecting portion 4 attached to the wall portion 3 contacts the filler F, and specifically, the lower surface and the outer edge portion contact the filling material F. It is buried in the filler F as shown in FIG.
By providing the connecting portion 4 in this way, the contact area between the filler F and the connecting portion 4 is made larger, and the connecting portion 4 is more firmly fixed by the adhesive force of the filler F, so that the buried member 1 can be fixed more firmly. The effect of stable installation can be expected.

FIG. 12 is a plan view showing another embodiment of the buried member 1 according to the present invention, and FIG. 13 is a sectional view taken along the line AA in FIG. 12.
The buried member 1 shown in FIGS. 12 and 13 differs from the buried member 1 shown in FIGS. 7 and 8 only in that an adhesive body 5 is provided above the connecting portion 4.
That is, the buried member 1 shown in FIGS. 12 and 13 includes a fastening part 2 made of an anchor nut, and a wall part 3 made of a round steel pipe into which a flat plate-shaped connecting part 4 is press-fitted. The fastening part 2, the connecting part 4, and the wall part 3 are formed in the same shape as shown in FIGS. 7 and 8.

The adhesive body 5 shown in FIGS. 12 and 13 is a flat metal plate formed into a circular shape, and its outer diameter is larger than the outer diameter of the wall portion 3.
The adhesive body 5 is attached onto the connecting portion 4 with its lower surface in contact with the upper surface of the connecting portion 4 and the upper end of the wall portion 3 .
Further, the adhesive body 5 has a circular through hole 51 formed in the center through which the male threaded portion of the bolt B can be inserted, and is attached above the connecting portion 4 with the position of the through hole 51 matching the through hole 41. ing.
Note that the lower surface of the adhesive body 5 shown in FIGS. 12 and 13 is only in contact with the connecting portion 4 and the wall portion 3, and is not fixed by adhesion, welding, or the like.

A circular through hole 52 is formed in the adhesive body 5. The through holes 52 are formed so as to be arranged above each gap S2 when the adhesive body 5 is attached above the connecting portion 4, and a total of four through holes 52 are provided in the adhesive body 5.

FIG. 14 is a longitudinal sectional view showing a state in which the construction tool 9 of FIG. 9 is attached to the buried member 1 of FIG. 12.
Specifically, the male threaded portion of the bolt B placed above the construction tool 9 is inserted into the through hole 92 of the construction tool 9, the through hole 51 of the adhesive body 5, and the through hole 41 of the connecting part 4, and the fastening is performed. It is screwed into the female threaded part 21 of the part 2, and the lower surface of the base material 91 of the construction tool 9 is brought into contact with the upper surface of the adhesive body 5.

Similar to the construction tool 9 shown in FIGS. 5 and 6, the lower surfaces of both longitudinal ends of the construction tool 9 shown in FIG. The buried member 1 shown in FIG. 14 can be fixed in the buried hole H by pouring the filler F, and after it hardens, unscrewing the bolt B and removing the construction tool 9.
Further, as shown in FIG. 14, when the construction tool 9 is attached, the hollow part 32 inside the wall part 3 and the space above the adhesive body 5 communicate with each other through the gap part S2 and the through hole 52. Therefore, when pouring the filler F into the buried hole H, air flows outward through the gap S2 and the through hole 52 without being trapped in the hollow part 32 in the cylindrical wall 31. Therefore, the gap S1 between the fastening portion 2 and the wall portion 3 can be filled with the filler F in a good manner.

FIG. 15 is a longitudinal sectional view showing a state in which the buried member 1 of FIG. 12 is installed.
The buried member 1 shown in FIG. 15 is similar to the buried member 1 shown in FIGS. 1 and 2 and the buried member 1 shown in FIG. By separating the filler material F on the outside of the portion 3 by the cylindrical wall 31, damage caused to the filler material F near the fastening portion 2 can be suppressed from reaching the members constituting the installation surface G. That is, by suppressing damage to the installation surface G and limiting the damage that occurs within the buried hole H, the buried member 1 can be restored more easily.
Moreover, since the filler material F on the outside and inside of the wall portion 3 is connected below the cylindrical wall 31 without an interface, the fastening portion 2 and the wall portion 3 are more firmly fixed by the hardened filler material F.
In addition, the buried member 1 shown in FIG. 12 has an angle of 45 degrees between a line connecting the lower edge of the fastening part 2 to the lower end of the cylinder wall 31 and a plane perpendicular to the axis of the female threaded part 21 of the fastening part 2. When the buried member 1 is pulled out from the installation surface G, the fracture surface D1 generated starting from the lower end of the fastening portion 2 connects to the lower end of the cylindrical wall 31. It is provided to encourage the formation of a fracture surface D1 along the outer surface of the cylinder wall 31.

The buried member 1 shown in FIG. 15 is provided so that the lower surface of the adhesive 5 attached to the connecting portion 4 contacts the filler F. Specifically, the lower surface, the outer edge portion, and the through hole 52 are connected to each other. It is buried in the filler F so that the edge portions are in contact with each other.
By providing the adhesive body 5 in this manner, the contact area between the filler F and the adhesive body 5 is made larger, and the adhesive body 5 is more firmly fixed by the adhesive force of the filler F. Furthermore, since the outer diameter of the adhesive body 5 is set larger than the outer diameter of the wall portion 3, the effect of installing the buried member 1 more stably can be expected.

FIG. 16 is a plan view showing another embodiment of the buried member 1 according to the present invention, and FIG. 17 is a sectional view taken along the line AA in FIG. 16.
The buried member 1 shown in FIGS. 16 and 17 differs from the buried member 1 shown in FIGS. 7 and 8 in the shape of the wall portion 3 and the connecting portion 4 and the structure in which both members are integrally formed. It is.
That is, like the buried member 1 shown in FIGS. 7 and 8, the buried member 1 shown in FIGS. 16 and 17 includes a fastening portion 2 made of an anchor nut, and this fastening portion 2 It is formed in the same shape as the fastening part 2 of the buried member 1.

The buried member 1 shown in FIGS. 16 and 17 includes a connecting portion 4 provided in a substantially disk shape, and a wall portion 3 including a cylindrical wall 31 extending downward from the entire circumference of the outer edge and formed in a substantially cylindrical shape. Specifically, the connecting portion 4 and the wall portion 3 are formed by pressing a single metal plate.
The connecting portion 4 is formed with a circular through hole 41 disposed in the center that passes through the connecting portion 4 in the vertical direction, and is formed in a size that allows the male threaded portion of the bolt B to be inserted therethrough.
The through hole 41 is formed to have a smaller size than the outer shape of the upper part of the fastening part 2, and as shown in FIG. The upper end of the fastening part 2 is provided so as to come into contact with the lower surface of the connecting part 4.
Note that the connecting portion 4 and the fastening portion 2 shown in FIG. 17 are only in contact with each other, and are not fixed by adhesion, welding, or the like.
Further, the connecting portion 4 is formed with substantially fan-shaped through holes 42 that penetrate in the vertical direction, and each through hole 42 is arranged at equal intervals around the through hole 41, so that a total of four through holes 42 are formed. There is.

In the wall portion 3, the inner diameter of the cylindrical wall 31 is larger than the outer diameter of the fastening portion 2. That is, the wall portion 3 is similar to the wall portion 3 shown in FIGS. A gap S1 is formed between the cylinder wall 31 and the cylinder wall 31.

The buried member 1 shown in FIGS. 16 and 17 can be installed using the construction tool 9 shown in FIG. 9 in the same procedure as the buried member 1 shown in FIGS. 7 and 8.
That is, the procedure for installing the buried member 1 is to first attach the construction tool 9 to the buried member 1. The male threaded portion of the bolt B disposed above is inserted into the through hole 92 of the base material 91 and the through hole 41 of the connecting portion 4, and is screwed into the female threaded portion 21 of the fastening portion 2.
Next, the buried member 1 is placed in the buried hole H, and the buried member 1 attached to the construction tool 9 is brought into contact with the installation surface G with both ends of the construction tool 9 in the longitudinal direction. It is stored in the burial hole H on the installation surface G. At this time, the upper surface of the connecting portion 4 is arranged flush with the installation surface G.
Finally, the buried member 1 is fixed in the buried hole H, and the buried hole H in which the buried member 1 is stored is filled with a fluid filler F, and after hardening, the bolt B is unscrewed. and remove the construction tool 9.

FIG. 18 is a longitudinal sectional view showing a state in which the buried member 1 of FIG. 16 is installed.
Similar to the buried member 1 shown in FIG. 11, the buried member 1 shown in FIG. 31, it is possible to prevent damage caused to the filler F near the fastening portion 2 from reaching the members constituting the installation surface G. That is, by suppressing damage to the installation surface G and limiting the damage that occurs within the buried hole H, the buried member 1 can be restored more easily.
Moreover, since the filler material F on the outside and inside of the wall portion 3 is connected below the cylindrical wall 31 without an interface, the fastening portion 2 and the wall portion 3 are more firmly fixed by the hardened filler material F.
In addition, since the buried member 1 is installed so that the lower surface of the connecting portion 4 and the edge of the through hole 42 contact the filler F, the contact area between the filler F and the through hole 42 becomes larger. The connection portion 4 is more firmly fixed by the adhesive force of the filler F. In other words, the contact between the connecting portion 4 and the filler F can be expected to have the effect of more stably installing the buried member 1.
In the buried member 1 shown in FIG. 16, the angle between the line connecting the lower edge of the fastening part 2 to the lower end of the cylindrical wall 31 and the vertical plane with respect to the axis of the female screw part 21 of the fastening part 2 is 45 degrees. When the buried member 1 is pulled out from the installation surface G, the fracture surface D1 generated starting from the lower end of the fastening portion 2 connects to the lower end of the cylindrical wall 31. It is provided so that the formation of a fracture surface D1 along the outer surface of the cylinder wall 31 is promoted.

FIG. 19 is a plan view showing another embodiment of the buried member 1 according to the present invention, and FIG. 20 is a sectional view taken along the line AA in FIG. 19. The buried member 1 shown in FIGS. 19 and 20 has a configuration that has a connecting part 4 that connects a wall part 3 and a fastening part 2, and an engaging part 24 for attaching this connecting part 4 to the fastening part 2. The main difference from the buried member 1 shown in FIGS. 1 and 2 is the configuration.
That is, the buried member 1 shown in FIGS. 19 and 20 includes a fastening part 2 made of an anchor nut and a wall part 3 made of a round steel pipe, and the fastening part 2 is housed in a hollow part 32 inside a cylindrical wall 31. I'm letting you do it. Further, a gap S1 is formed between the fastening part 2 located approximately at the center of the wall part 3 and the cylindrical wall 31.

The wall portion 3 is connected to the fastening portion 2 via a connecting portion 4 attached to the fastening portion 2.
The connecting portion 4 includes an engaging portion 44 that engages with the fastening portion 2 and a support portion 45 that projects outward from the engaging portion 44, and connects the engaging portion 44 to the engaging portion 24 of the fastening portion 2. It is engaged and attached to the fastening part 2.

21 shows the fastening portion of FIG. 19, (A) is a plan view, and (B) is a front view.
The fastening part 2 is a cylindrical anchor nut with a bottom in which the female threaded part 21 opens upward, and a sloped part 23 whose outer diameter increases toward the bottom is formed at the lower part. It is formed into a shape with a constant diameter.
The engaging part 24 to which the connecting part 4 is attached is formed on the outer surface of the lower part of the fastening part 2, and is provided at the position where the inclined part 23 is formed.
The engaging portion 24 includes an insertion portion 24b having a substantially constant outer diameter, and a step portion 24a having a stepped portion whose outer diameter increases outward from the lower end of the insertion portion 24b.
In addition, in the engagement part 24 of the fastening part 2 shown in FIG. 21, the outer diameter of the insertion part 24b is made slightly smaller at the top than at the bottom, but the outer diameter is the same throughout the entire insertion part 24b. It may be provided.

22 is a plan view showing the connecting portion 4 of FIG. 15, and FIG. 23 is a sectional view taken along line AA of FIG. 22.
The connecting part 4 includes a substantially cylindrical engaging part 44 that can be engaged with the engaging part 24 of the fastening part 2, and the engaging part 44 is provided so that the inserting part 24b can be inserted into the engaging part 44. . Specifically, the engaging portion 44 has an inner surface 44b formed in a shape corresponding to the outer shape of the insertion portion 24b, and a lower end 44a formed in a planar shape.
When the engaging portion 44 provided in this manner is engaged with the engaging portion 24 of the fastening portion 2, the lower end 44b comes into contact with the stepped portion 24a, and the inner surface 44a comes into contact with the outer surface of the insertion portion 24a, thereby establishing the connection. This prevents misalignment between the portion 4 and the fastening portion 2.

The support portion 45 of the connecting portion 4 is formed into a substantially flat plate shape and is provided so as to protrude outward from the outer surface of the engaging portion 44, and is an abutment for attaching the lower end of the wall portion 3 to the protruding tip portion. A portion 46 is formed.
The contact portion 46 includes a stepped portion 46b whose upper surface faces upward, and an insertion protrusion 46b that vertically projects upward from the radially inner side of the stepped portion 46b.
The support parts 45 are formed by arranging three of them at equal intervals in the circumferential direction of the engagement part 44 formed in a substantially cylindrical shape, and each contact part 46 formed on each support part 45 is connected to the lower end of the cylinder wall 31. It is placed at a position corresponding to the shape of.
When the lower end of the wall portion 3 is attached to each of the abutting portions 46 provided in this manner, each step portion 46a abuts the lower end of the cylindrical wall 31, and the insertion protrusion 46b is inserted into the cylindrical wall 31, as shown in FIG. It comes into contact with the inner surface of the wall 31 to prevent displacement of the cylindrical wall 31 and stably support the wall portion 3.

As shown in FIG. 20, in the buried member 1 in which the fastening part 2 and the wall part 3 are connected via the connecting part 4, the vertical position of the upper end of the cylindrical wall 31 coincides with the upper end of the fastening part 2. It is arranged like this.
The buried member 1 can be installed using a construction tool 9 shown in FIG.
The procedure for installing the buried member 1 using the construction tool 9 shown in FIG. The male threaded portion of the bolt B, which is placed in contact with each upper end of the portion 2 and placed above the construction tool 9, is inserted into the through hole 92 of the base material 91 and screwed into the female threaded portion 21 of the fastening portion 2.
Next, the buried member 1 is placed in the buried hole H, and the buried member 1 attached to the construction tool 9 is brought into contact with the installation surface G with both ends of the construction tool 9 in the longitudinal direction. It is stored in the burial hole H on the installation surface G. At this time, the upper ends of the fastening portion 2 and the cylindrical wall 31 are arranged flush with the installation surface G, respectively.
Finally, the buried member 1 is fixed in the buried hole H, and the buried hole H in which the buried member 1 is stored is filled with a fluid filler F, and after hardening, the bolt B is unscrewed. and remove the construction tool 9.

FIG. 24 is a longitudinal sectional view showing a state in which the buried member 1 of FIG. 19 is installed.
Similar to the buried member 1 shown in FIGS. 1 and 2, the buried member 1 shown in FIG. By separating them with the cylindrical wall 31, damage caused to the filler F near the fastening portion 2 can be suppressed from reaching the members constituting the installation surface G. That is, by suppressing damage to the installation surface G and limiting the damage that occurs within the buried hole H, the buried member 1 can be restored more easily.
Moreover, since the filler material F on the outside and inside of the wall portion 3 is connected below the cylindrical wall 31 without an interface, the fastening portion 2 and the wall portion 3 are more firmly fixed by the hardened filler material F.
Furthermore, since the buried member 1 is installed so that the entire connecting portion 4 is buried inside the filler F, the connecting portion 4 is very firmly fixed by the filler F. In other words, the contact between the connecting portion 4 and the filler F can be expected to have the effect of more stably installing the buried member 1.
In the buried member 1 shown in FIG. 19, the angle between the line connecting the lower edge of the fastening part 2 to the lower end of the cylindrical wall 31 and the perpendicular plane to the axis of the female threaded part 21 of the fastening part 2 is 45 degrees. When the buried member 1 is pulled out from the installation surface G, the fracture surface D1 generated starting from the lower end of the fastening portion 2 connects to the lower end of the cylindrical wall 31. It is provided so that the formation of a fracture surface D1 along the outer surface of the cylinder wall 31 is promoted.

Note that the buried member 1 according to the present invention is not limited to the above embodiment, and various changes can be made without departing from the gist of the present invention.
For example, although the wall portion 3 of the buried member 1 is formed in a cylindrical shape, it is not limited to this, and may be formed in a shape other than a cylinder, such as a rectangular tube shape or an elliptical tube shape.
Further, the wall portion 3 is formed to have a circular cross section including a cylinder wall 31 all around the circumference, but it may also have a shape in which a through hole is formed in a part of the cylinder wall or a C-shaped cross section. It may be formed in a shape in which a part of the cylinder wall is missing. However, in order to obtain a greater effect of suppressing the damage caused to the filler F in the vicinity of the fastening portion 2 from spreading to the outside of the wall portion 3 by the cylinder wall 31, the cylinder wall 31 is It is preferable to form the wall 31 into a cylindrical shape having the entire circumference.
Furthermore, although the wall portion 3 is formed of a round steel pipe, its material is not limited to iron, but may be made of non-ferrous metals such as aluminum, soft or hard synthetic resins such as polyethylene resin, or other materials. can be selected or used in combination.

Further, in the buried member 1, the entire lower end of the cylindrical wall 31 of the wall portion 3 is located above the lower end of the fastening portion 2, but the present invention is not limited to this. It may be located below. However, even if the depth of the buried hole H is shallow, it is easy to connect the filler F on the outside and inside of the wall 3 without an interface below the cylindrical wall 31, so at least a part of the lower end of the cylindrical wall 31 is connected to the fastening section. 2, and more preferably, the entire lower end of the cylindrical wall 31 is located above the fastening portion 2, as in the buried member 1.

FIG. 27 is a perspective view showing another embodiment of the buried member 1 according to the present invention, FIG. 28 is a plan view of FIG. 27, and FIG. 29 is a sectional view taken along line AA of FIG. 28.
The main difference between the buried member 1 shown in FIGS. 27 to 29 and the wall portion 3 of the buried member 1 shown in FIGS. 16 and 17 is the shape of the connecting portion 4.
That is, like the buried member 1 shown in FIGS. 16 and 17, the buried member 1 shown in FIGS. It is formed in the same shape as the fastening part 2 of the buried member 1.

Further, the buried member 1 shown in FIGS. 27 to 29 has a connecting portion 4 provided in a substantially disk shape and a connecting portion 4 extending downward from the entire circumference of the outer edge, similar to the buried member 1 shown in FIGS. 16 and 17. The connecting portion 4 and the wall portion 3 having a cylindrical wall 31 formed into a substantially cylindrical shape are integrally formed. Specifically, the connecting portion 4 and the wall portion 3 are formed by pressing a single metal plate. is forming.
The connecting portion 4 is formed with a circular through hole 41 disposed in the center that passes through the connecting portion 4 in the vertical direction, and is formed in a size that allows the male threaded portion of the bolt B to be inserted therethrough.
The through hole 41 is formed to have a smaller size than the outer shape of the upper part of the fastening part 2, and as shown in FIG. The upper end of the fastening part 2 is provided so as to come into contact with the lower surface of the connecting part 4.
Note that the connecting portion 4 and the fastening portion 2 shown in FIG. 29 are only in contact with each other, and are not fixed by adhesion, welding, or the like.

Further, in the buried member 1 shown in FIGS. 27 to 29, the inner diameter of the cylindrical wall 31 of the wall portion 3 provided in a cylindrical shape is larger than the outer diameter of the fastening portion 2, similarly to the buried member 1 shown in FIGS. 16 and 17. is forming. That is, the wall portion 3 is similar to the wall portion 3 shown in FIGS. A gap S1 is formed between the cylinder wall 31 and the cylinder wall 31.

A substantially semicircular through hole 42 passing through the connecting portion 4 in the vertical direction is formed, and each through hole 42 is arranged at equal intervals around the through hole 41, so that a total of two through holes 42 are formed. .
Further, the connecting portion 4 is formed with a thin broken portion 43 that is smaller in thickness than other portions of the connecting portion 4 . FIG. 30 is an enlarged view showing the broken portion 43 of the connecting portion 4 in FIG. 29. As shown in FIG. The breaking portion 43 is a notch-like portion provided in the connecting portion 4, and is formed in the shape of a groove whose upper surface and lower surface are respectively recessed inwardly over the entire width of the connecting portion 4.
The broken portion 43 is formed in the connecting portion 4 during press working to integrally form the wall portion 3 and the connecting portion 4.

The buried member 1 shown in FIGS. 27 to 29 can be installed in the same manner as the buried member 1 shown in FIGS. 16 and 17.
That is, the procedure for installing the buried member 1 is to first attach the construction tool 9 to the buried member 1. The male threaded portion of the bolt B disposed above is inserted into the through hole 92 of the base material 91 and the through hole 41 of the connecting portion 4, and is screwed into the female threaded portion 21 of the fastening portion 2.
Next, the buried member 1 is placed in the buried hole H, and the buried member 1 attached to the construction tool 9 is brought into contact with the installation surface G with both ends of the construction tool 9 in the longitudinal direction. It is stored in the burial hole H on the installation surface G. At this time, the upper surface of the connecting portion 4 is arranged flush with the installation surface G.
Finally, the buried member 1 is fixed in the buried hole H, and the buried hole H in which the buried member 1 is stored is filled with a fluid filler F, and after hardening, the bolt B is unscrewed. and remove the construction tool 9.

FIG. 31 is a longitudinal sectional view showing a state in which the buried member 1 of FIG. 27 is installed.
Similar to the buried member 1 shown in FIGS. 16 and 17, the buried member 1 shown in FIG. By separating them with the cylindrical wall 31, damage caused to the filler F near the fastening portion 2 can be suppressed from reaching the members constituting the installation surface G. That is, by suppressing damage to the installation surface G and limiting the damage that occurs within the buried hole H, the buried member 1 can be restored more easily.
Moreover, since the filler material F on the outside and inside of the wall portion 3 is connected below the cylindrical wall 31 without an interface, the fastening portion 2 and the wall portion 3 are more firmly fixed by the hardened filler material F.
In addition, since the buried member 1 is installed so that the lower surface of the connecting portion 4 and the edge of the through hole 42 contact the filler F, the contact area between the filler F and the through hole 42 becomes larger. The connection portion 4 is more firmly fixed by the adhesive force of the filler F. In other words, the contact between the connecting portion 4 and the filler F can be expected to have the effect of more stably installing the buried member 1.
In the buried member 1 shown in FIG. 31, the angle between the line connecting the lower edge of the fastening part 2 to the lower end of the cylindrical wall 31 and the perpendicular plane to the axis of the female screw part 21 of the fastening part 2 is 40 degrees. When the buried member 1 is pulled out from the installation surface G, the fracture surface D1 generated starting from the lower end of the fastening portion 2 connects to the lower end of the cylindrical wall 31. It is provided so that the formation of a fracture surface D1 along the outer surface of the cylinder wall 31 is promoted.

Moreover, the buried member 1 shown in FIG. 31 has the breaking part 43 formed in the connecting part 4, so that when a structure installed using the fastening part 2 receives a large external force, the breaking part 43 The connecting portion 4 is broken at the position where the connecting portion 4 is formed, and the force transmitted from the fastening portion 2 to the wall portion 3 via the connecting portion 4 can be reduced. By reducing the force applied to the wall portion 3 in this manner, damage to the filling material F on the outside of the wall portion 3 and the members constituting the installation surface G can be more effectively suppressed.

As shown in FIGS. 27 to 30, the fractured part 43 of the buried member 1 shown in FIG. It is also possible to form the connecting part 4 in other forms that allow it to break at the breaking part 43 when applied. For example, the connecting portion 4 may be provided in the shape of a notch, and the broken portion 43 may be formed in a narrow shape with a small width, or the connecting portion 4 may be broken in the shape of a hole provided in the notch shape. A section 43 may also be formed.

1 Buried member 2 Fastening section 21 Female thread section 23 Inclined section 24 Engagement section 3 Wall section 31 Cylindrical wall 32 Hollow section 4 Connection section 41 Through hole 42 Through hole 43 Broken section 44 Engagement section 45 Support section 46 Contact section 5 Adhesion Body 51 Through hole 52 Through hole 9 Construction tool 91 Base material 92 Through hole 93 Magnetic attachment part B Bolt F Filler G Installation surface H Buried hole S1 Gap part S2 Gap part

Claims (4)

A buried member that is placed in a buried hole formed on an installation surface and fixed in the buried hole by a filler that solidifies after being filled in the buried hole,
The buried member includes a fastening part having a male threaded part or a female threaded part, and a wall part disposed outside the fastening part,
The wall portion is formed in a cylindrical shape, the fastening portion is housed inside the wall portion, and a gap is formed between an outer surface of the fastening portion and an inner surface of the wall portion,
The wall is arranged so that the height of the upper end of the wall substantially matches the installation surface, and the lower end of the wall is located above the lower end of the fastening part. A buried component characterized by: The buried member according to claim 1, further comprising a connecting portion that connects the fastening portion and the wall portion, and at least a portion of the connecting portion is provided to be buried within the filler. . 3. The buried member according to claim 2, wherein the connecting portion is formed integrally with the wall portion, and the connecting portion is provided with a cutout-like broken portion. An installation structure for a buried member placed in a buried hole formed on an installation surface and fixed in the buried hole by a filler that is solidified after being filled in the buried hole,
The buried member includes a fastening part having a male threaded part or a female threaded part, and a wall part disposed outside the fastening part,
The wall portion is formed in a cylindrical shape, the fastening portion is housed inside the wall portion, and a gap is formed between an outer surface of the fastening portion and an inner surface of the wall portion,
The wall portion is arranged such that the height position of the upper end thereof substantially coincides with the installation surface, and the lower end of the wall portion is arranged above the lower end of the fastening portion. An installation structure for a buried member, characterized in that the filling material filled on the outside of the wall is filled into the gap through the lower part of the wall.

Images