JP2009002407A - Penetration section sealing member and penetration section sealing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a penetration section sealing method which is excellent in sealing performance, and strong against telescopic motion by a vibration of penetration object or temperature change, furthermore free from a damage of aesthetic sense, additionally can perform construction in a state that continuous pipe arrangement or the like is installed, and moreover by a working from only one side of penetration section when sealing a gap generated when making pipe arrangement, conduit tube, steel frame or the like penetrate a structure such as ceiling, floor, wall or the like. <P>SOLUTION: The sealing member is characterized in that a seal auxiliary elastic member 11 is formed from a cylindrical elastic body with a flange portion 21, and in that a side face of the seal auxiliary elastic member 11 can be opened from a cut section 26 of the flange portion 21. Furthermore, the sealing method when sealing the gap of the penetration section is characterized in that the seal auxiliary elastic member 11 is opened from the cut section 26, in that the seal auxiliary elastic member 11 is interfit into a pipe arrangement 51, in that the seal auxiliary elastic member 11 is inserted into a penetration opening 52 formed in a ceiling board 50, in that a sealant 56 is filled up in a sealant filling space 55 formed in the inner side of the seal auxiliary elastic member 11, and in that pressing plates 12a and 12b cover the flange portion 21, and fixed with screws 53a to 53d. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a penetrating part sealing device and a penetrating part sealing method for sealing a gap generated when penetrating pipes or the like through walls, ceilings, etc., and in particular, can be constructed even in a state where continuous pipes are installed. The present invention relates to a structure that can be constructed by work only from one side of the penetrating part and that can follow the expansion and contraction due to the vibration of the penetrating object and the temperature change to improve the sealing performance.

  Conventionally, when construction is performed by penetrating a pipe or the like through a wall or the like, as shown in FIG. 13, a through-hole 103 having a diameter larger than that of the through-hole 102 such as a pipe is opened in a structure 101 such as a wall. 103, a penetrating object 102 such as piping is passed, and a backup material 106 such as polystyrene foam is sandwiched between the plate 105 and the structure 101, and between the plate 105 and the penetrating object 102 and between the plate 105 and the structure 101. The sealing method is generally filled with the sealing materials 107 and 108 and sealed.

  However, in the conventional method shown in FIG. 13, the penetrating material 102 such as piping and the sealing material 107 of the plate 105 cannot obtain a sufficient cross-sectional area for the seal, so the movement of the penetrating material 102 cannot be absorbed and the seal is not There is a problem that it is easily damaged. Moreover, in the above-mentioned conventional construction method, there is a problem that the aesthetic appearance is remarkably impaired when the sealing material is applied thickly in order to improve the sealing performance.

Further, in Patent Document 1, as shown in FIG. 14, in a method of attaching a pipe having a circular cross section to a through hole provided in a housing such as a wall, a hole having a diameter smaller than the outer diameter of the pipe is provided in the through hole 201. A rubber plate 202 having 203 is provided, and a pipe 204 is passed through a hole 203 of the rubber plate 202. With what was described in patent document 1, compared with the conventional construction method shown in FIG. 13, vibration absorbency becomes high.
JP 2000-283340 A

  However, in the method of Patent Document 1, construction cannot be performed unless a cut is made in the rubber plate 202 in a state where continuous piping or the like is installed, and if the cut is made, the sealing performance cannot be maintained.

  In view of the above-mentioned problems, the present invention is excellent in sealing properties, strong against expansion and contraction due to vibrations and temperature changes of the penetrating object, and does not impair the aesthetics, and can be applied even in a state where continuous piping or the like is installed, It is another object of the present invention to provide a penetrating part sealing tool and a penetrating part sealing method that can be constructed only from one side of the penetrating part.

  In order to solve the above-described problems, the present invention includes a seal auxiliary elastic member that is formed of an elastic body and forms a seal material filling space around a penetrating object, and includes a seal material filling space formed in the seal auxiliary elastic member. A penetrating portion sealing device that seals a gap between a structure and a penetrating material by filling with a sealing material, and the seal auxiliary elastic member is provided on one end face and has an opening having a diameter corresponding to the outer diameter of the penetrating material. A bottom portion having a flange portion, a flange portion extending along the other end surface, and a cut portion formed along the axial direction of the seal auxiliary elastic member. The seal auxiliary elastic member is opened from the cut portion. The penetrating portion sealing device is characterized in that it is fitted into a penetrating object and a sealing material filling space is formed inside the seal auxiliary elastic member.

  Preferably, the flange extends to the outer diameter portion of the penetrating object.

  Preferably, a pressing plate for fixing the seal auxiliary elastic member to the structure is further provided.

  Preferably, a ring is attached to the penetrating object, and a groove is formed inside the seal auxiliary elastic member.

  Preferably, the seal auxiliary elastic member has a cylindrical shape having a disk-like flange. Preferably, the sealing auxiliary elastic member is in the shape of a prism having a quadrangular flange.

  Preferably, the cut portion of the flange portion has a cross section cut into a V shape. Preferably, the cut portion of the flange portion cuts the cross section obliquely. Preferably, the cut portion of the flange portion is cut into a shape such that the cross-sections are fitted to each other. Preferably, a groove is formed on the upper surface of the flange portion along the cut portion, an elastic member having a shape corresponding to the groove is further provided, and the elastic member is fitted on the groove. To do. Preferably, the cut portion of the flange portion is cut into a shape that fits along the radial direction of the flange portion.

  The present invention comprises an elastic body, a bottom surface portion provided on one end surface and having an opening having a diameter corresponding to the outer diameter of the penetrating object, a flange portion extending along the other end surface, and an axial direction A sealing auxiliary elastic member that forms a sealing material filling space around the penetrating material, and the sealing material filling space formed in the sealing auxiliary elastic member is filled with the sealing material. Is a penetration part sealing method using a penetration part sealing device that seals the gap between the structure and the penetration object, and includes a step of opening the seal auxiliary elastic member from the cut portion and fitting the seal auxiliary elastic member into the penetration object A step of inserting a side surface portion of the seal auxiliary elastic member into a through-hole formed in the structure, a step of filling a seal material filling space formed inside the seal auxiliary elastic member, and a flange portion. , Seal auxiliary elastic part Which is a through-seal method which is to include a step of securing to the structure.

  Preferably, the method further includes a step of placing a pressing plate for fixing the seal auxiliary elastic member to the structure on the flange portion and fixing the seal auxiliary elastic member to the structure.

  According to the present invention, there is provided a sealing auxiliary elastic member that is made of an elastic body and forms a sealing material filling space around the penetrating object, and the sealing material filling space formed in the sealing auxiliary elastic member is filled with the sealing material. Accordingly, the sealing auxiliary elastic member seals the gap between the structure and the penetration, and the seal auxiliary elastic member is provided on one end surface of the seal auxiliary elastic member and has an opening having a diameter corresponding to the outer diameter of the penetration , A flange portion extending along the other end surface, and a cut portion formed along the axial direction of the seal auxiliary elastic member, and the seal auxiliary elasticity from the cut portion. The member is opened and fitted into the penetrating object, and a sealing material filling space is formed inside the seal auxiliary elastic member. As a result, it has excellent sealing properties, is resistant to expansion and contraction due to vibrations and temperature changes of the penetrating object, does not impair the aesthetics, and can be installed even with continuous piping, etc. installed, and only from one side of the penetrating part Can be constructed in the work.

  Moreover, according to this invention, since the flange is extended even to the outer-diameter part of the penetration, it can prevent that a sealing material flows down.

  Further, according to the present invention, since the pressing plate for fixing the seal auxiliary elastic member to the structure is further provided, the flange portion of the seal auxiliary elastic member can be evenly adhered to the structure, You can raise your aesthetics.

  Further, according to the present invention, since the ring is attached to the penetrating object and the groove is formed inside the seal auxiliary elastic member, peeling between the seal material and the seal auxiliary elastic member can be prevented.

  Further, according to the present invention, since the seal auxiliary elastic member has a cylindrical shape having a disk-like flange, it can correspond to a circular penetrating object. In addition, according to the present invention, the seal auxiliary elastic member is in the shape of a prism having a quadrangular flange, and therefore can accommodate a quadrangular penetration.

  According to the present invention, the cut portion of the flange portion is characterized in that the cross section is cut into a V shape so that the sealing material can be filled. Further, the cut portion of the flange portion is characterized in that the cross section is cut obliquely. Further, the cut portion of the flange portion is characterized by being cut into a shape such that the cross sections fit each other. Further, a groove is formed on the upper surface of the flange portion along the cut portion, an elastic member having a shape corresponding to the groove is further provided, and the elastic member is fitted on the groove. Further, the cut portion of the flange portion is cut into a shape that fits along the radial direction of the flange portion. Thereby, a notch part is not opened and a sealing performance is improved.

  According to the present invention, the bottom surface portion is formed of an elastic body and has an opening having a diameter corresponding to the outer diameter of the penetrating object, the flange portion extending along the other end surface, and the axial direction. A sealing auxiliary elastic member that forms a sealing material filling space around the penetrating material, and the sealing material filling space formed in the sealing auxiliary elastic member is filled with the sealing material This is a penetration part sealing method using a penetration part sealing device that seals the gap between the structure and the penetration object, and opens the seal auxiliary elastic member from the notch and fits the seal auxiliary elastic member to the penetration object. A step of inserting a side surface portion of the seal auxiliary elastic member into a through-hole formed in the structure, a step of filling a seal material filling space formed inside the seal auxiliary elastic member, and a flange Depending on the part, seal assistance So that a step of fixing a sexual member to the structure. As a result, it has excellent sealing properties, is resistant to expansion and contraction due to vibration and temperature changes of the penetrating object, does not impair aesthetics, and can be installed even with continuous piping installed, and from only one side of the penetrating part Can be constructed in the work.

  Further, according to the present invention, since the pressing plate for fixing the seal auxiliary elastic member to the structure is placed on the flange portion and the step of fixing the seal auxiliary elastic member to the structure is included, the seal auxiliary elastic member Can be evenly adhered to the structure, and the beauty can be improved.

First embodiment.
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a configuration of a penetrating portion sealing device 1 according to a first embodiment of the present invention. The penetrating portion sealing device 1 according to the first embodiment of the present invention includes a sealing auxiliary elastic member 11 shown in FIG. 1 (A) and semicircular plates 12a and 12b shown in FIG. 1 (B).

  The seal auxiliary elastic member 11 is fitted into a penetrating material such as a pipe and inserted into a structure such as a wall or a ceiling board to form a sealing material filling space around the penetrating material such as a pipe.

  A seal auxiliary elastic member 11 shown in FIG. 1A is a cylindrical member having a flange portion 21 and is formed of an elastic body such as rubber or a flexible synthetic resin. The inner diameter of the side surface portion 23 of the seal auxiliary elastic member 11 is larger than the outer diameter of a penetrating object such as a pipe.

  A bottom surface portion 22 is provided on one end surface of the seal auxiliary elastic member 11, and an opening 25 is formed at the center of the bottom surface portion 22. The diameter of the opening 25 corresponds to the outer diameter of a penetrating object such as a pipe.

  The other end surface of the seal auxiliary elastic member 11 is an opening, and a flange portion 21 extends around the periphery of the other end surface. The outer diameter of the flange portion 21 is a sufficiently large diameter with respect to a through-hole opened in a structure such as a wall or a ceiling board.

  Further, a cut portion 26 is provided on a side surface of the seal auxiliary elastic member 11. The cut portion 26 communicates from the bottom surface portion 22 of the seal auxiliary elastic member 11 to the end of the flange portion 21, and the side surface of the seal auxiliary elastic member 11 is cut along the axial direction by the cut portion 26. Is done.

  The pressing plates 12a and 12b shown in FIG. 1 (B) fix the seal auxiliary elastic member 11 to a structure such as a ceiling or a wall. The holding plates 12a and 12b are made of synthetic resin, metal, or the like, and have a shape obtained by dividing the disk on the donut in half. When the holding plates 12a and 12b are combined, a shape corresponding to the flange portion 21 is obtained. Further, when the holding plates 12a and 12b are combined, the diameter of the opening 31 formed at the center thereof corresponds to the outer diameter of a penetrating material such as a pipe. Further, screw holes 32a and 32b, 32c and 32d are formed in the holding plates 12a and 12b.

  2 and 3 show a method of sealing a gap between a structure and a penetrating object using the penetrating portion sealing device of the first embodiment of the present invention. Here, an example in which the pipe 51 is passed through the ceiling board 50 will be described.

  As shown in FIG. 2 (A), when constructing a construction for penetrating piping from the ceiling board 50 using the penetrating portion sealing device of the first embodiment of the present invention, first, the through hole 52 is formed in the ceiling board 50. And the piping 51 is pulled out from the through-hole 52. The size of the through hole 52 is set to be slightly larger than the outer diameter of the side surface portion 23 of the seal auxiliary elastic member 11.

  Next, as shown in FIG. 2B, the seal auxiliary elastic member 11 is opened from the cut portion 26 of the seal auxiliary elastic member 11, and the seal auxiliary elastic member 11 is fitted into the pipe 51.

  As described above, the seal auxiliary elastic member 11 is formed of an elastic body, and the cut portion 26 is provided in the axial direction. For this reason, the seal auxiliary elastic member 11 can be opened from the cut portion 26.

  When the seal auxiliary elastic member 11 is fitted into the pipe 51, the seal auxiliary elastic member 11 is inserted into the through hole 52 of the ceiling board 50 as shown in FIG.

  FIG. 3A is a cross-sectional view showing a state when the seal auxiliary elastic member 11 is inserted into the through hole 52 of the ceiling board 50. As shown in FIG. 3A, when the side surface portion 23 of the seal auxiliary elastic member 11 is inserted into the through-hole 52 of the ceiling board 50, the flange portion 21 of the seal auxiliary elastic member 11 comes into contact with the ceiling board 50 and seal auxiliary. The elastic member 11 is positioned. Since the inner diameter of the side surface portion 23 of the seal auxiliary elastic member 11 is larger than the outer diameter of the pipe 51, a seal material filling space 55 is formed between the inner wall of the seal auxiliary elastic member 11 and the pipe 51.

  When the sealing auxiliary elastic member 11 is inserted into the through hole 52 of the ceiling board 50, the sealing material 56 is filled into the sealing material filling space 55 as shown in FIG. As the sealing material, for example, a sealing material mainly composed of silicone and having excellent adhesive force, weather resistance, durability, and elasticity is used.

  When the sealing auxiliary elastic member 11 is filled with the sealing material, as shown in FIG. 2 (C), the pressing plates 12a and 12b are put on the flange portion 21, and the screws 53a to 53d are used as shown in FIG. 2 (D). Next, the seal auxiliary elastic member 11 is fixed to the ceiling board 50.

  When the pressing plates 12a and 12b are put on the flange portion 21, the position of the notch portion 26 and the position where the plate 12a and the plate 12b are connected do not coincide with each other in order to improve the integrity of the seal. It is desirable to make it.

  FIG. 4 shows a state when the gap between the ceiling board 50 and the pipe 51 is sealed using the penetrating portion sealing device 1 according to the first embodiment of the present invention as described above.

  As shown in FIG. 4, when the penetrating portion sealing device 1 of the first embodiment of the present invention is used, the sealing material 56 is placed in the sealing material filling space 55 between the inner wall of the seal auxiliary elastic member 11 and the pipe 51. Filled. For this reason, the gap between the opening 25 of the bottom surface portion 22 of the seal auxiliary elastic member 11 and the pipe 51 is sealed by the sealing material 56. Further, since the seal auxiliary elastic member 11 has elasticity, the elasticity absorbs the expansion and contraction due to the vibration of the penetrating object and the temperature change, and the sealing material 56 is not easily damaged even if it receives the vibration or expansion and contraction. The flange portion 21 is covered with pressing plates 12a and 12b and fixed by screws 53a to 53d. For this reason, the flange 21 can be adhered to the ceiling board 50 evenly, and the portion filled with the sealing material cannot be seen, and the aesthetic appearance is not impaired.

  As described above, according to the first embodiment of the present invention, the sealing property is excellent, it is strong against the expansion and contraction due to the vibration of the penetrating object and the temperature change, and the appearance is not impaired. Furthermore, since the sealing auxiliary | assistant elastic member 11 can be opened from the notch part 26, it can construct even in the state in which the continuous piping etc. were installed. All such operations can be performed only from one side of the penetrating portion. For this reason, even in the case of the ceiling board 50, it is not necessary to enter and work on the back side of the ceiling board 50.

  In the above-described example, the pressing plates 12a and 12b are put on the flange portion 21 and fixed by screws 53a to 53d. it can.

  Moreover, you may make it fix the flange part 21 directly to a structure, without using the holding | suppressing plates 12a and 12b.

Second embodiment.
FIG. 5 shows a second embodiment of the present invention. In this embodiment, the diameter of the opening 65 at the center of the end face of the seal auxiliary elastic member 11 on the flange portion 21 side is made to correspond to the outer diameter of a penetrating object such as a pipe. When using a material having high fluidity as the seal material or when using a foam material as the seal material, the diameter of the opening 65 on the end surface of the seal auxiliary elastic member 11 on the flange portion 21 side is penetrated through a pipe or the like. Corresponding to the outer diameter of the object can prevent the sealing material from flowing down.

Third embodiment.
FIG. 6 shows a third embodiment of the present invention. In this embodiment, a ring 61 such as a wire is attached to a penetrating object such as a pipe 51, and a groove 62 is provided inside the side surface portion 23 of the seal auxiliary elastic member 11. As described above, the ring 61 is attached to the penetrating material such as the pipe 51, or the groove 62 is provided inside the side surface portion 23 of the seal auxiliary elastic member 11. Peeling can be prevented. About another structure, it is the same as that of the above-mentioned 1st Embodiment, The description is abbreviate | omitted.

  When the diameter of the opening 65 on the end face on the flange portion 21 side of the seal auxiliary elastic member 11 is made to correspond to the outer diameter of a penetrating object such as a pipe, the seal auxiliary elastic member 11 is as shown in FIG. It opens from the notch part 26, and a sealing material is inject | poured from this part. About another structure, it is the same as that of the above-mentioned 1st Embodiment, The description is abbreviate | omitted.

Fourth embodiment.
FIG. 7 shows a fourth embodiment of the present invention. From the first embodiment to the fourth embodiment, the seal auxiliary elastic member 11 has a cylindrical shape having a flange portion 21. On the other hand, in this embodiment, the seal auxiliary elastic member 11a has a prismatic shape having a square flange portion 21a, and a cut portion 26a is formed along the axial direction. This embodiment is particularly suitable when penetrating the square pipe 51a. About another structure, it is the same as that of the above-mentioned 1st Embodiment, The description is abbreviate | omitted.

Fifth embodiment.
FIG. 8 shows a fifth embodiment of the present invention. In this embodiment, the cut portion 26 of the flange portion 21 is cut into a V-shaped cross section. If it does in this way, the sealing material 56 can be filled also into the notch part 26 of the flange part 21. FIG.

Sixth embodiment.
FIG. 9 shows a sixth embodiment of the present invention. In this embodiment, the cut portion 26 of the flange portion 21 is cut obliquely. As described above, when the cut portion 26 of the flange portion 21 is cut obliquely, the sealing performance is maintained by pressing with the pressing plates 12a and 12b during construction.

Seventh embodiment.
FIG. 10 shows a seventh embodiment of the present invention. In this embodiment, the cross sections of the cut portions 26 of the flange portion 21 are cut into shapes that fit each other. Thus, if the cut portion 26 of the flange portion 21 is cut into a shape that fits together, the seal auxiliary elastic member 11 can be prevented from opening from the cut portion 26 of the flange portion 21.

Eighth embodiment.
FIG. 11 shows an eighth embodiment of the present invention. In this embodiment, a groove 81 having a W-shaped cross section is formed on the upper surface of the flange portion 21 along the cut portion 26 of the flange portion 21, and an elastic member 82 having a shape corresponding to the groove 81 is provided. . In this embodiment, it is possible to prevent the seal auxiliary elastic member 11 from opening from the cut portion 26 of the flange portion 21 by fitting the elastic member 82 on the groove 81.

Ninth embodiment.
FIG. 12 shows a ninth embodiment of the present invention. In this embodiment, the cut portion 26 of the flange portion 21 is cut into a shape that fits along the radial direction of the flange portion 21. In this embodiment, the seal auxiliary elastic member 11 is cut into the cut portion of the flange portion 21 by cutting the cut portion 26 of the flange portion 21 into a shape that fits along the radial direction of the flange portion 21. 26 can be prevented from opening.

  As shown in FIG. 12, the notch 26 is cut in the radial direction so as to be fitted to each other along the radial direction of the flange portion 21, and as shown in FIGS. You may make it cut the cross section of the part 26. FIG.

  The present invention can be similarly applied to other structures such as a floor and a wall in addition to the ceiling board. Further, the structure may be any material such as concrete, iron, and wood. Moreover, this invention is applicable also to penetrations, such as a conduit tube, an electric wire, and a steel frame other than piping.

  The present invention is not limited to the above-described embodiments, and various modifications and applications can be made without departing from the gist of the present invention.

  INDUSTRIAL APPLICABILITY The present invention can be widely used when penetrating objects such as pipes, electric pipes, electric wires, and steel frames are penetrated through structures such as ceilings, floors, and walls.

It is a perspective view used for description of the penetration part seal tool of a 1st embodiment of the present invention. It is a perspective view used for description of the construction method which seals the crevice between the structure and penetration thing using the penetration part seal tool of a 1st embodiment of the present invention. It is sectional drawing used for description of the construction method which seals the clearance gap between the structure and penetration thing using the penetration part sealing tool of 1st Embodiment of this invention. It is sectional drawing used for description of the construction method which seals the clearance gap between the structure and penetration thing using the penetration part sealing tool of 1st Embodiment of this invention. It is sectional drawing used for description of the construction method which seals the clearance gap between the structure and penetration thing using the penetration part sealing tool of 2nd Embodiment of this invention. It is sectional drawing used for description of the construction method which seals the clearance gap between the structure and penetration object using the penetration part sealing tool of 3rd Embodiment of this invention. It is a perspective view used for description of the construction method which seals the crevice between a structure and a penetration thing using a penetration part seal tool of a 4th embodiment of the present invention. It is explanatory drawing of the penetration part sealing tool of 5th Embodiment of this invention. It is explanatory drawing of the penetration part sealing tool of 6th Embodiment of this invention. It is explanatory drawing of the penetration part sealing tool of 7th Embodiment of this invention. It is explanatory drawing of the penetration part sealing tool of 8th Embodiment of this invention. It is explanatory drawing of the penetration part sealing tool of 9th Embodiment of this invention. It is sectional drawing of an example of the conventional penetration part sealing tool. It is sectional drawing of the other example of the conventional penetration part sealing tool.

Explanation of symbols

11, 11a Seal auxiliary elastic members 12a, 12b Plates 21, 21a Flange part 22 Bottom face part 23 Side face part 25 Opening 26, 26a Cut part 31 Opening 32a-32d Screw hole 50 Ceiling board 51 Piping 52 Through hole 55 Sealing material filling space 56 Sealing material 61 Ring 62 Groove 65 Opening 81 Groove 82 Elastic member

Claims (13)

A seal auxiliary elastic member that is made of an elastic body and forms a sealing material filling space around the penetrating object, and is filled with the sealing material in the sealing material filling space formed in the sealing auxiliary elastic member so as to penetrate the structure. A through-hole seal that seals the gap between the object and
The seal auxiliary elastic member is
A bottom surface portion provided on one end face and having an opening having a diameter corresponding to the outer diameter of the penetrating object;
A flange portion extending along the other end surface;
A cut portion formed along the axial direction of the seal auxiliary elastic member,
The through-hole sealing tool, wherein the sealing auxiliary elastic member is opened from the cut portion and fitted into the penetrating object to form a sealing material filling space inside the auxiliary sealing elastic member.   The penetrating part sealing device according to claim 1, wherein the flange extends to an outer diameter part of a penetrating object.   Furthermore, the penetration part sealing tool of Claim 1 or 2 provided with the pressing plate which fixes the said seal | sticker auxiliary | assistant elastic member to a structure.   The penetrating part sealing device according to any one of claims 1 to 3, wherein a ring is attached to the penetrating object and a groove is formed inside the seal auxiliary elastic member.   5. The penetrating portion sealing device according to claim 1, wherein the sealing auxiliary elastic member has a cylindrical shape having a disk-like flange.   The penetrating portion sealing device according to any one of claims 1 to 5, wherein the seal auxiliary elastic member has a prismatic shape having a quadrangular flange.   The through-hole sealing device according to any one of claims 1 to 6, wherein the cut portion of the flange portion has a V-shaped cross section.   The penetration part sealing tool according to any one of claims 1 to 6, wherein the cut part of the flange part cuts the cross section obliquely.   The through-hole sealing device according to any one of claims 1 to 6, wherein the cut portion of the flange portion is cut into a shape such that the cross-sections are fitted to each other.   A groove is formed on the upper surface of the flange portion along the cut portion, an elastic member having a shape corresponding to the groove is further provided, and the elastic member is fitted on the groove. The penetration part sealing tool in any one of Claims 1 thru | or 6.   The penetration part seal according to any one of claims 1 to 9, wherein the cut part of the flange part is cut into a shape that fits along the radial direction of the flange part. Ingredients. It is made of an elastic body, and is formed along the axial direction with a bottom surface portion provided on one end surface and having an opening having a diameter corresponding to the outer diameter of the penetrating object, a flange portion extending along the other end surface, and A sealing auxiliary elastic member that forms a sealing material filling space around the penetrating object, and the sealing material filling space formed in the sealing auxiliary elastic member is filled with the sealing material. It is a penetrating part sealing method using a penetrating part sealing tool that seals the gap between the object and the penetrating object,
Opening the seal auxiliary elastic member from the notch, and fitting the seal auxiliary elastic member into the penetration,
Inserting a side surface portion of the seal auxiliary elastic member into a through-hole formed in the structure;
Filling a sealant into a sealant filling space formed inside the seal auxiliary elastic member;
And a step of fixing the seal auxiliary elastic member to the structure by the flange portion. The penetration according to claim 12, further comprising a step of placing a pressing plate for fixing the seal auxiliary elastic member to the structure on the flange portion and fixing the seal auxiliary elastic member to the structure. Part sealing method.

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