JP5735876B2 - ALC wall hole closing method - Google Patents

Description

  The present invention relates to a method for closing a wall hole opened in an ALC wall.

  Conventionally, ALC walls have been used for the outer walls of apartment buildings and commercial facilities. For example, the ALC wall is a wall through which air intake / exhaust piping of an air conditioner is passed or a ventilation sleeve is inserted. A hole may be provided. By the way, the construction of making a hole in the ALC wall is performed in advance before the start of interior construction such as lining. However, if the floor plan of each room is changed during or after the interior work, it is necessary to change the positions of the wall holes. However, in such a case, it is necessary not only to open a wall hole at a new position, but also to close the original wall hole that is no longer used.

  Therefore, as a jig for closing the wall hole opened in the ALC wall as described above, for example, an outer frame body having a flange on the outer peripheral edge is inserted into the wall hole from the outdoor side, and the opening portion of the outer frame body is covered with a lid. An outer cap for a cooler sleeve (see, for example, Patent Document 1) that closes with a body and enhances a waterproof effect has been proposed.

Utility Model Application Publication No. 62-136688

  However, the above-described conventional outer cap for a cooler sleeve is composed of a plurality of parts and has a complicated structure, so that not only the manufacturing cost increases, but also the possibility of changing the position of the wall hole is procured in advance. It is necessary to keep. Further, since the wall hole penetrates, the wall hole cannot be sealed simply by closing the opening portion with the lid of the cap for the cooler sleeve described above, resulting in insufficient fire resistance. Therefore, it is not suitable for apartment houses with strict fire resistance standards.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an ALC wall hole closing method that can quickly, easily, and cost-effectively change a floor plan.

  In order to solve the above-mentioned problem, the ALC wall hole closing method according to the present invention is characterized in that, when a wall hole opened in the ALC wall is not used, a cylindrical member hollowed out from the ALC wall is used as the wall hole. The purpose is to seal the wall hole by using a member or jig having insertion and fire resistance.

  That is, the ALC wall hole closing method according to the present invention includes a step of hollowing out a cylindrical member from the ALC wall and opening a through hole in the ALC wall. When not using the said through-hole, the process of inserting the said cylindrical member in this through-hole is provided. Furthermore, a step of filling a fireproof joint material between the outer periphery of the cylindrical member and the inner periphery of the through hole, and a step of covering the cylindrical end face with a blind member.

  In addition, when a fireproof joint material is used as the filler, the cylindrical member is fixed to the through hole by the fireproof joint material filled between the outer periphery of the cylindrical member and the inner periphery of the through hole. Once it is closed, it becomes difficult to use it again in the subsequent renovation of the interior. Therefore, a step of hollowing out a cylindrical member from the ALC wall, opening a first through hole in the ALC wall, and opening a second through hole in the center of the cylindrical member is provided. When the first through hole is not used, the method includes a step of inserting the cylindrical member into the first through hole and a step of covering the end surface of the cylindrical member with a blind member. The blindfold member includes an outer plate member and an inner plate member, and a rod member that connects the outer plate member and the inner plate member. Here, the rod-shaped member protrudes from the center of one of the outer plate-shaped member and the inner plate-shaped member. Further, when the rod-shaped member is inserted into the second through hole, the tip protrudes from the surface on the opposite side of the ALC wall, and a male screw is threaded at the tip. Furthermore, in the center of the other of the outer plate member or the inner plate member, a female screw screwed with a male screw screwed at the tip of the bar member is screwed. Therefore, in the step of covering the end face of the cylindrical member with a blind member, the rod-shaped member is inserted into the second through hole, and the outer plate-shaped member or the male screw threaded at the tip of the rod-shaped member is inserted. It is desirable that a female screw threaded on the other of the inner plate-like members is screwed and the ALC wall is sandwiched between the outer plate-like member and the inner plate-like member.

  Here, the “cylindrical member” is not limited to the one cut out from the ALC wall, and may have the same size cut out from another ALC wall. In order to cut out the “cylindrical member”, for example, a cylindrical saw such as a hole saw is used. For this reason, the outer diameter of the “cylindrical member” is slightly smaller than the inner diameter of the through hole. Further, a positioning drill may or may not protrude from the center of the cylindrical saw.

  In addition, “when not using the through hole” means, for example, a change in the floor plan of the room, so that it is no longer necessary to insert the piping of the air conditioning equipment into the through hole.

  The “fireproof joint material” corresponds to a blanket-like material in which all fillers and fibers having fire resistance are woven. Examples of the fire-resistant filler include not only cement such as mortar and grout but also curable sealing materials such as acrylic, polyurethane, acrylic urethane, polysulfide, silicon, or modified silicon. .

  The “blindfold member” described in claim 1 means a member that covers at least one end face of the cylindrical member on the outdoor side or indoor side, and may or may not have fire resistance. Therefore, at least one of the “blindfold members” corresponds to a circle or rectangle having a size larger than the outer diameter of the through hole. The material of the “blindfold member” corresponds to, for example, iron, steel, plywood, wood board, or veneer board. In order to cover the end face of the cylindrical member with a “blind member”, for example, an adhesive may be applied to the surface of the blind member and attached to the end face of the cylindrical member.

  The “second through-hole” is limited to a case where, for example, when the cylindrical member is cut out, the center of the cylindrical member is simultaneously opened with a drill protruding from the center of the cylindrical saw. First, it includes a case where the first through hole is opened independently of the first through hole either before or after opening the first through hole.

  The “blindfold member” described in claim 2 means an “outer plate member” and an “inner plate member” that covers both end faces of the cylindrical member. Specifically, it is not limited to a circle or a rectangle having a size larger than the outer diameter of the first through hole, but includes a rectangle whose vertical width or horizontal width is larger than the outer diameter of the first through hole. The material corresponds to, for example, iron or steel.

  The “bar-shaped member” is not limited to the one in which the male screw is threaded only at the tip of the rod-shaped member, but also the one in which the male screw is threaded from the tip to the end. In addition, the “bar-shaped member” corresponds to one fixed to the center of one of the “outer plate-shaped member” or “inner plate-shaped member” by welding, or one that is detachable by screwing.

  In the ALC wall hole closing method according to the present invention, it is sufficient to insert a cylindrical member cut out from the ALC wall into an unused through-hole opened in the ALC wall and close it. Therefore, the through hole can be closed easily and in a short time in response to a change in floor plan of each room, and the construction work can be performed at low cost without preparing another member or jig. In addition, by filling a fireproof joint material between the outer periphery of the cylindrical member and the inner periphery of the through hole, not only the gap between the cylindrical member and the through hole is filled, but the fire resistance is improved. The cylindrical member can be fixed to the through hole to increase the strength of the ALC wall. Further, when the end face of the cylindrical member is covered with a blindfold member, the end face of the filled refractory joint material is also covered with the blindfold member, so that the trace of opening the through hole in the ALC wall can be hidden. Furthermore, by covering the indoor side end face of the cylindrical member with a fire-resistant blindfold member, the fire resistance is further improved, so that it can also be applied to apartment buildings with strict fire resistance standards.

  By connecting the inner plate member and the outer plate member with a rod member inserted into the second through hole, the cylindrical member inserted into the first through hole is attached and detached so as to be sandwiched between the ALC walls. Can be fixed freely. Therefore, since the cylindrical member is not fixed to the ALC wall, the closed opening hole can be easily reused, for example, in a reform with a change in floor plan. The through-holes that are no longer used can be easily and in a short time closed using the shaped member, the outer plate-like member, and the rod-like member.

It is a perspective view of the ALC wall which opened the through-hole. It is a perspective view of the ALC wall which inserts a cylindrical member in the opened through-hole. It is a perspective view of the ALC wall which inserted the cylindrical member. It is a perspective view of the ALC wall which obstruct | occluded the through-hole.

  Hereinafter, an example of the ALC wall hole closing method according to the present invention will be described with reference to FIGS.

  FIG. 1 shows a relationship between a cylindrical member 2 cut out from the ALC wall 1 and a first through hole 3 opened in the ALC wall. As shown in this figure, as a method for closing an ALC wall hole according to the present invention, first, a cylindrical member 2 is cut out from the ALC wall 1 using a hole saw having a cylindrical cutting blade, and the first ALC wall is cut into the ALC wall. The through hole 3 is opened. For this reason, the outer diameter of the cylindrical member 2 is slightly smaller than the inner diameter of the first through hole 3. In addition, since a drill for positioning the center of the cylindrical member 2 projects from the center of the hole saw, the first through hole 3 is opened and a second hole is formed at the center of the cylindrical member 2. The through hole 4 is opened. In addition, the cylindrical member 2 is stored in a warehouse or the like until it is determined that the first through hole 3 is used to pass piping such as air conditioning equipment.

  FIG. 2 shows the relationship between the first through hole 3 that is not used and the cylindrical member 2 that is inserted into the through hole. As shown in this figure, when the first through hole 3 is not used because the room layout change or the like has occurred, the cylindrical member 2 is inserted into the first through hole. In this case, before the cylindrical member 2 is inserted into the first through-hole 3, the sheet-shaped fireproof joint material 5 is wound as a filler around all or a part of the outer periphery 21 of the cylindrical member. Thus, the work of filling the fireproof joint material 5 between the outer periphery 21 of the cylindrical member 2 and the inner periphery 31 of the first through hole 3 is performed in a short time, and this cylindrical member and the first penetration A slight gap with the hole can be easily filled. In addition, after apply | coating the fireproof joint material 5 to the inner periphery 31 of the 1st through-hole 3, you may insert the cylindrical member 2 in this 1st through-hole.

  Further, FIG. 3 shows the relationship between the ALC wall 1 in which the cylindrical member 2 is inserted into the first through-hole 3 and the blind member that covers the end face of the cylindrical member. As shown in this figure, after the cylindrical member 2 is inserted into the first through-hole 3, the end surface of the cylindrical member is covered with a blindfold member. As the blindfold member, a circular outer blindfold member 6 made of a plate-shaped iron plate having a diameter larger than the outer diameter of the first through hole 3 and a plate having a vertical width smaller than the outer diameter of the first through hole. A rectangular inner blind member 7 made of an iron plate and an iron bar member 8 projecting perpendicularly to the center of the outer blind member.

  The rod-shaped member 8 is longer than the cylindrical member 2 and has an outer diameter substantially equal to the outer diameter of the second through hole 4. Further, a male screw 81 is threaded on the outer periphery of the rod-shaped member 8 from the end to the tip. For this reason, when the rod-shaped member 8 is inserted into the second through hole 4, the tip of the rod-shaped member protrudes from the opposite surface of the ALC wall 1. Further, in the center of the inner blind member 7, a female screw 71 that is screwed with a male screw 81 that is threaded at the tip of the rod-shaped member 8 is threaded. For this reason, the rod-shaped member 8 is inserted into the second through-hole 4 and the male screw 81 threaded on the tip of the rod-shaped member is screwed with the female screw 71 threaded on the inner blind member 7 so as to be blinded on the outer side. The ALC wall 1 can be gripped by the member 6 and the inner blindfold member.

  If the internal thread of the male member 81 screwed into the rod-shaped member 8 is screwed into the inner periphery of the second through-hole 4, the rod-shaped member can be screwed into the second through-hole. it can. The end of the rod-shaped member 8 is fixed to the center of the outer blind member 8 by welding. Further, before the step of inserting the cylindrical member 2 into the first through-hole 3 described above, the rod-like member 8 may be inserted into the second through-hole 4 to cover the end surface of the cylindrical member. Good.

  FIG. 4 shows a state in which the first through hole 3 that is not used is closed using the cylindrical member 2, the fireproof joint material 5, the outer blind member 6, and the inner blind member 7. Therefore, as shown in this figure, it is sufficient to insert the cylindrical member 2 hollowed out from the ALC wall into the first through hole 3 which is open to the ALC wall 1 but is not used to close the through hole. Accordingly, the first through hole 3 can be easily and quickly closed in response to a change in the floor plan of each room, and the construction work can be performed at low cost without preparing another member or jig. In addition, by filling the outer periphery 21 of the cylindrical member 2 and the inner periphery 31 of the first through hole 3 with the refractory joint material 5, the gap between the cylindrical member and the first through hole is filled. Not only is the fire resistance improved, but the cylindrical member can be fixed to the through hole to increase the strength of the ALC wall 1.

  Further, when the end face of the cylindrical member 2 is covered with the outer blind member 6, the end face of the filled refractory joint material 5 is also covered with this outer blind member, so that the first through hole 3 of the ALC wall 1 is opened. Not only can it be hidden, but the fire resistance is further improved. Therefore, it can be applied to apartment houses with strict fire resistance standards. Further, the ALC wall 1 is clamped by screwing a male screw 81 threaded at the tip of the rod-shaped member 8 projecting from the center of the outer blind member 6 and a female screw 71 threaded at the center of the inner member 7. Thus, since the cylindrical member 2 can be fixed to the ALC wall, even if the refractory joint material 5 decays and softens, for example, the cylindrical member can be prevented from dropping.

  The ALC wall hole closing method according to the present invention can be widely used in industries related to individual houses, apartment houses, corporate buildings, medical facilities, nursing care facilities, and the like.

DESCRIPTION OF SYMBOLS 1 ALC wall 2 Cylindrical member 21 Outer periphery of cylindrical member 3 1st through-hole 31 Inner periphery of 1st through-hole 4 2nd through-hole 5 Fireproof joint material 6 Outer blindfold member 7 Inner blindfold member 71 Female Screw 8 Bar-shaped member 81 Male screw

Claims (2)

Hollowing out a cylindrical member from the ALC wall and opening a through hole in the ALC wall;
When not using the through hole, the step of inserting the cylindrical member into the through hole;
Filling the fireproof joint material between the outer periphery of the cylindrical member and the inner periphery of the through hole;
Covering the end face of the cylindrical member with a blindfold member. A method for closing an ALC wall hole. Hollowing out a cylindrical member from the ALC wall, opening a first through hole in the ALC wall, and opening a second through hole in the center of the cylindrical member;
When not using the first through hole, the step of inserting the cylindrical member into the first through hole;
A step of covering the end face of the cylindrical member with a blindfold member,
The blindfold member includes an outer plate member and an inner plate member, and a rod member that connects the outer plate member and the inner plate member,
The rod-shaped member protrudes from the center of one of the outer plate-shaped member or the inner plate-shaped member,
When the rod-shaped member is inserted into the second through hole, the tip protrudes from the surface on the opposite side of the ALC wall, and a male screw is threaded on the tip.
In the center of the other of the outer plate-shaped member or the inner plate-shaped member, a female screw that is screwed with a male screw threaded at the tip of the rod-shaped member is threaded.
In the step of covering the end face of the cylindrical member with a blind member, the rod-shaped member is inserted into the second through hole, and the outer plate-shaped member or the inner A method of closing an ALC wall hole, wherein a female screw threaded on the other of the plate-like members is screwed and the ALC wall is sandwiched between the outer plate-like member and the inner plate-like member.

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