JP6948163B2 - Filling aid, gangway forming device, fire protection compartment structure, and method of constructing fire protection compartment structure - Google Patents

Description

The present invention is a filling auxiliary tool that assists in filling a through hole of a wall material into which a wiring / piping material is inserted, and a through-passage forming a through-passage of a wiring / piping material in the through hole of the wall material. The present invention relates to a fireproof compartment structure in which wiring / piping materials can be arranged in through holes of an apparatus and a wall material, and a method for constructing the fireproof compartment structure.

Conventionally, when a wiring / piping material is pierced and arranged in a wall material for a fireproof section of a building, a through hole is formed in the wall material and the wiring / piping material is arranged in the through hole. In such a fire protection compartment wall structure, it is required to take fire protection measures in the through hole. That is, when a fire or the like occurs in the space on the front side of one wall sandwiching the wall material for the fire prevention section, the flame, smoke, toxic gas, etc. generated on the other side flows into the space on the other side through the through hole. The through hole must be closed to prevent this. Then, a fire protection structure as in Patent Document 1 has been proposed in which fire protection measures are taken between the through hole and the wiring / piping material in the event of a fire.

Patent Document 1 discloses a fireproof structure including a cylindrical sleeve installed in a gangway of a fireproof compartment. Hereinafter, in the paragraph, the reference numerals of Patent Document 1 are shown in parentheses. The refractory structure (1) is installed in a compartment (2) composed of a hollow wall provided with a gangway (8) and a gangway (8) of the compartment (2), and is used for inserting pipes and wiring. A refractory sheet that covers at least one of the openings at both ends of the sleeve (3) in a state where no piping or wiring is inserted through the tubular steel sleeve (3) and the sleeve (3). (5) and. Then, the fireproof sealing material (4) is filled between the skeleton surface of the gangway (8) and the outer peripheral surface of the sleeve 3. As the sealing material (4), a heat-expandable resin composition containing a heat-expandable component such as heat-expandable graphite, a phosphorus compound, an inorganic filler, and the like), a fire-resistant putty, and the like are used. A clay-like filler or a paste-like filler made of a heat-expandable refractory resin composition is preferable because it expands when exposed to heat such as a fire and exhibits a heat insulating effect.

Japanese Unexamined Patent Publication No. 2016-194202

In the fire-resistant structure of Patent Document 1, a fire-resistant sealing material (hereinafter, filler) is provided in the gap between the sleeve (hereinafter, cylinder) and the inner peripheral surface of the gangway (hereinafter, through hole) in order to construct the fire-resistant structure. At the time of filling, it is not easy for the operator to visually grasp the amount of the filled material, so that it is difficult to fill the gap with an appropriate amount of the filling material. Along with this, the following problems may occur. For example, when the object is a hollow wall, when the operator fills the gap from the front of the through hole, the inside of the through hole and the hollow space cannot be visually observed from the front. Therefore, when the filler is pushed into the gap between the inner peripheral surface of the through hole and the outer peripheral surface of the cylinder, the filling material cannot be fixed to the inner peripheral surface of the through hole by mistake, and the filler is made into a hollow wall. There was a risk of dropping it into the hollow space of. On the other hand, if the operator suppresses the amount of the filler in order to prevent the filler from falling into the hollow space, the amount of the filler may be insufficient and the desired fire resistance may not be satisfied. On the other hand, even when the target is a solid wall, similarly, when the operator fills the gap from the front of the through hole, the inside of the through hole cannot be visually observed from the front. There was a risk that the filler would be filled with the wrong filling amount. For example, although the filler may be filled at a predetermined distance from the through-hole opening to satisfy the desired fire resistance, the filler is pushed beyond the predetermined distance so as not to fall below the fire resistance, and the filler is filled. There was a risk of consuming more than necessary. On the other hand, if the operator suppresses the consumption of the filler, there is a risk that the amount of the filler will be insufficient and the desired fire resistance performance will not be satisfied. Therefore, with the conventional fire-resistant structure and the fire-resistant measure method, it is difficult to fill the gap with a sufficient amount of filler in order to satisfy a predetermined fire-resistant performance.

An object of the present invention is a filling aid, a through-passage forming device, a fire-prevention compartment structure, and a fire-prevention compartment that enable a filling material to be filled in a gap between an outer peripheral surface of a cylinder and an inner peripheral surface of a through hole in an appropriate filling amount. The purpose is to provide a way to build the structure.

In one form of the filling aid of the present invention, a predetermined amount of filler is filled in the gap between the inner peripheral surface of the through hole formed in the wall material and the outer peripheral surface of the cylinder inserted in the through hole. It ’s a filling aid that helps you
It consists of an annular body mounted on the outer peripheral surface of the cylinder at a predetermined position in the longitudinal direction of the cylinder.
The annular body is provided with an abutting portion configured to receive a filler filled in the gap from the opening end of the through hole, and the abutting portion and the opening so as to satisfy a predetermined fire resistance. A filling space for the filler is defined between the edges.

A further form of the filling assisting tool of the present invention is the filling assisting tool of the above-described embodiment , wherein the annular body has a cushioning property that can be compressed and deformed inward in the radial direction of the tubular body, and in the original shape of the annular body. The outer diameter of the annular body is larger than the diameter of the through hole.

A further form of the filling assisting tool of the present invention is the filling assisting tool of the above-described embodiment , wherein the annular body is composed of a band body wound around the tubular body.

A further form of the filling assisting tool of the present invention is the filling assisting tool of the above-described embodiment , wherein the annular body is attached to an outer peripheral surface of the tubular body.

The gangway forming device of one embodiment of the present invention is a gangway forming device installed in a through hole of a wall material and for forming a gangway of a wiring / piping material.
A cylinder for interpolating wiring and piping materials,
An annular body that radially outwardly protrudes from the outer peripheral surface of the tubular body at a position separated from the opening end of the through hole by a predetermined distance is provided.
A predetermined amount of filler is filled in the gap between the inner peripheral surface of the through hole and the outer peripheral surface of the cylinder inserted into the through hole.
The annular body is provided with a contact portion for receiving the filler filled in the gap from the open end of the through hole, and is provided between the contact portion and the open end so as to satisfy a predetermined fire resistance. It is characterized in that the filling space of the filler is defined.

In the through-passage forming device of the above-described embodiment , the ring-shaped body has a cushioning property that can be compressed and deformed inward in the radial direction of the cylinder, and is the source of the ring-shaped body. In terms of shape, the outer diameter of the annular body is larger than the diameter of the through hole.

A further form of the gangway forming device of the present invention is the gangway forming device of the above-described embodiment , wherein the annular body is composed of a band wound around the tubular body.

A further form of the gangway forming device of the present invention is the gangway forming device of the above-described embodiment , wherein the annular body is attached to an outer peripheral surface of the tubular body.

One form of the fire protection compartment structure of the present invention is a fire protection compartment structure of a building in which wiring and piping materials can be arranged.
Fireproof wall material with through holes and
A cylinder that is placed in the through hole and inserts wiring and piping materials,
An annular body that annularly protrudes radially outward from the outer peripheral surface of the tubular body at a position separated from the opening end of the through hole by a predetermined distance.
A predetermined amount of filler filled in the gap between the inner peripheral surface of the through hole and the outer peripheral surface of the cylinder is provided.
The annular body is provided with a contact portion that is in contact with the filler filled in the gap, and is provided between the contact portion and the open end of the through hole so as to satisfy a predetermined fire resistance. A filling space is defined, and the filling space is filled with the filling material.

In the fire-prevention compartment structure of the above-described embodiment , the fire-prevention compartment structure of the present invention has a cushioning property in which the annular body can be compressed and deformed inward in the radial direction of the cylinder, and in the original shape of the annular body. , The outer diameter of the annular body is larger than the diameter of the through hole.

In a further form of the fire-prevention compartment structure of the present invention, in the fire-prevention compartment structure of the above-described embodiment , the wall material is a hollow wall composed of a pair of walls, and the annular body is arranged in the space between the pair of walls. The contact portion of the annular body is in contact with the peripheral edge of the through hole at least partially together with the filler.

In a further form of the fire-prevention compartment structure of the present invention, in the fire-prevention compartment structure of the above-described embodiment , the wall material is a solid wall, and the contact portion and the open end of the through hole are provided inside the solid wall. It is characterized in that a filling space is defined between them.

A method of one embodiment of the present invention is a method of constructing a fireproof compartment structure in which wiring / piping materials can be arranged in through holes drilled in a fireproof wall material.
Prepare a through-passage forming device including a tubular body into which wiring / piping material is inserted and an annular body that periodically protrudes outward in the radial direction from the outer peripheral surface of the tubular body at a predetermined position in the longitudinal direction of the tubular body. Process and
A step of inserting the through-passage forming device into the through-hole in a state where the annular body is compressed and deformed inward in the radial direction, and a step of inserting the through-passage forming device into the through-hole.
A step of moving the annular body to a position separated from the opening end of the through hole by a predetermined distance to form a filling space for accommodating an appropriate amount of a filler satisfying a predetermined fire resistance.
The gap between the inner peripheral surface of the through hole and the outer peripheral surface of the cylinder is filled from the open end of the through hole until it comes into contact with the abutting portion of the annular body, and the filling is performed so as to satisfy a predetermined fire resistance. It is characterized by including a step of filling the space with the filler.

In a method of a further embodiment of the present invention, in the method of the above-described embodiment , the annular body has a cushioning property capable of being compressively deformed inward in the radial direction of the tubular body, and the outer shape is larger than the diameter of the through hole in the original shape. It has a diameter, and is characterized in that the through-passage forming device is inserted into the through hole in a state where the annular body is compression-deformed inward in the radial direction.

According to the filling aid of one embodiment of the present invention, the annular body mounted on the outer peripheral surface of the tubular body has a contact portion configured to receive the filling material pushed inward from the open end of the through hole. Be prepared. Then, based on the position in the longitudinal direction in which the annular body is mounted on the tubular body, a filling space for accommodating an appropriate amount (volume) of a filler satisfying a predetermined fire resistance performance between the abutting portion and the opening end of the through hole. Is determined. That is, when the operator fills the gap from the open end of the through hole with the filler and the filling amount reaches a predetermined amount, the filler on the back side is locked to the contact portion, and the filler is behind the contact portion. Since it is prevented from entering the side, the operator cannot fill it any more. As a result, a filling space having a predetermined volume defined between the abutting portion and the open end is filled with an appropriate amount of filler without excess or deficiency, and desired fire resistance is realized.

According to the filling assisting tool of a further form of the present invention, in addition to the effect of the above invention, the annular body has a cushioning property capable of being compressively deformed inward in the radial direction of the cylinder, and in the original shape of the annular body. , The outer diameter of the annular body is larger than the diameter of the through hole. As a result, when the filling aid is installed in the through hole of the solid wall, the annular body can be arranged in a state of being compressed and deformed into the through hole, and the outer peripheral surface of the annular body can be brought into close contact with the inner peripheral surface of the through hole. can. Further, when the filling aid is arranged in the hollow space of the hollow wall, the outer diameter of the annular body is larger than the diameter of the through hole in the original shape of the annular body, so that the end face of the annular body touches the peripheral edge of the through hole. Can be touched. That is, it is possible to more reliably receive the filler in which the contact portion is filled in the gap.

According to the filling assisting tool of a further form of the present invention, in addition to the effect of the above invention, the annular body is made of a band body, so that it is possible to correspond to a cylinder body of various sizes.

According to the filling assisting tool of a further form of the present invention, in addition to the effect of the above invention, the filling assisting tool can be easily attached to the cylinder by attaching the annular body to the outer peripheral surface of the cylinder. can.

According to the through-passage forming device of one embodiment of the present invention, an annular body is formed so as to protrude radially outward from the outer peripheral surface of the tubular body, and the annular body is a filler that is pushed inward from the open end of the through hole. It is provided with a contact portion configured to receive the receiver. Further, when the through-passage forming device is installed in the through-hole, an annular body is formed at a predetermined position in the longitudinal direction of the cylinder so as to be separated from the opening end of the through-hole by a predetermined distance in the longitudinal direction. Then, a filling space for accommodating an appropriate amount (volume) of the filler satisfying a predetermined fire resistance is defined between the contact portion and the opening end of the through hole. That is, when the operator fills the gap from the open end of the through hole with the filler and the filling amount reaches a predetermined amount, the filler on the back side is locked to the contact portion, and the filler is behind the contact portion. Since it is prevented from entering the side, the operator cannot fill it any more. As a result, a filling space having a predetermined volume defined between the abutting portion and the open end is filled with an appropriate amount of filler without excess or deficiency, and desired fire resistance is realized.

According to the through-passage forming device of a further form of the present invention, in addition to the effect of the above invention, the annular body has a cushioning property capable of being compressively deformed inward in the radial direction of the cylinder, and the original shape of the annular body. The outer diameter of the annular body is larger than the diameter of the through hole. As a result, when the through-passage forming device is installed in the through-hole of the solid wall, the annular body is arranged in a state of being compressed and deformed into the through-hole, and the outer peripheral surface of the annular body is brought into close contact with the inner peripheral surface of the through-hole. Can be done. Further, when the through-passage forming device is arranged in the hollow space of the hollow wall, the outer diameter of the annular body is larger than the diameter of the through hole in the original shape of the annular body, so that the end face of the annular body is used as the peripheral edge of the through hole. Can be brought into contact. That is, it is possible to more reliably receive the filler in which the contact portion is filled in the gap.

According to the through-passage forming device of a further form of the present invention, in addition to the effect of the above invention, the annular body is composed of a band, so that when the through-passage forming device is constructed, it corresponds to cylinders of various sizes. It is possible.

According to a further form of the gangway forming device of the present invention, in addition to the effect of the above invention, the annular body is attached to the outer peripheral surface of the tubular body to form the gangway forming device. It can be easily attached to the cylinder.

According to the fire protection compartment structure of one embodiment of the present invention, an annular body is formed so as to protrude radially outward from the outer peripheral surface of the tubular body, and the annular body is a filler pushed inward from the open end of the through hole. It is provided with a contact portion that comes into contact with. Then, an annular body is formed at a position separated from the opening end of the through hole by a predetermined distance, and an appropriate amount (volume) of a filler satisfying a predetermined fire resistance is accommodated between the contact portion and the opening end of the through hole. The filling space is defined. That is, when constructing the fire protection compartment structure, when the operator fills the gap from the open end of the through hole with the filler and the filling amount reaches a predetermined amount, the filler on the back side is locked to the contact portion. Since the filler is prevented from entering the back side of the contact portion, the operator cannot fill the filler any more. As a result, the filling space defined between the abutting portion and the open end is filled with an appropriate amount of filler in just proportion, and the desired fire resistance is realized. Further, in the fire protection compartment structure, since the contact portion acts to block the filler, it is possible to prevent the filler from being displaced and the fire resistance performance from being deteriorated after the fact.

According to the fire protection compartment structure of a further form of the present invention, in addition to the effect of the above invention, the annular body has a cushioning property that can be compressed and deformed inward in the radial direction of the tubular body, and in the original shape of the annular body. , The outer diameter of the annular body is larger than the diameter of the through hole. As a result, when the solid portion of the wall material is separated from the opening end of the through hole by a predetermined distance, the annular body is arranged in a state of being compressed and deformed into the through hole, and the outer peripheral surface of the annular body is formed by the through hole. It can be brought into close contact with the inner peripheral surface. Further, when the position separated from the opening end of the through hole by a predetermined distance is the hollow space of the wall material, the outer diameter of the annular body is larger than the diameter of the through hole in the original shape of the annular body, so that the end face of the annular body Can be brought into contact with the periphery of the through hole. That is, it is possible to more reliably receive the filler in which the contact portion is filled in the gap.

According to a further form of the fire protection compartment structure of the present invention, in addition to the effect of the above invention, in the fire protection compartment structure including the hollow wall, the filler does not fall into the hollow space and is between the contact portion and the open end. The defined filling space was filled with an appropriate amount of filler in just proportion, and the desired fire resistance was achieved.

According to a further form of the fire protection compartment structure of the present invention, in addition to the effect of the above invention, in the fire protection compartment structure provided with the solid wall, the filling space defined between the abutting portion and the open end is not excessive or deficient. It was filled with an appropriate amount of filler to achieve the desired fire resistance.

According to the method for constructing the fire protection compartment structure of one embodiment of the present invention, an annular body is formed so as to protrude radially outward from the outer peripheral surface of the tubular body, and the annular body is pushed inward from the open end of the through hole. It is provided with a contact portion that comes into contact with the filled material. Then, by moving the annular body to a position separated from the opening end of the through hole by a predetermined distance, an appropriate amount (volume) of a filler satisfying a predetermined fire resistance performance is formed between the abutting portion and the opening end of the through hole. A filling space is formed to accommodate. That is, when the operator fills the gap from the open end of the through hole with the filler and the filling amount reaches a predetermined amount, the filler on the back side is locked to the contact portion, and the filler is behind the contact portion. Since it is prevented from entering the side, the operator cannot fill it any more. As a result, the filling space defined between the abutting portion and the open end can be filled with an appropriate amount of filler in just proportion, and it is possible to construct a fire protection compartment structure that achieves the desired fire resistance performance. Is.

According to the method of a further form of the present invention, in addition to the effect of the above invention, the annular body has a cushioning property that can be compressed and deformed inward in the radial direction of the tubular body, and the annular body has an annular shape in the original shape of the annular body. The outer diameter of the body is larger than the diameter of the through hole. As a result, when the filling aid is installed in the through hole of the solid wall, the annular body can be arranged in a state of being compressed and deformed into the through hole, and the outer peripheral surface of the annular body can be brought into close contact with the inner peripheral surface of the through hole. can. Further, when the filling aid is arranged in the hollow space of the hollow wall, the outer diameter of the annular body is larger than the diameter of the through hole in the original shape of the annular body, so that the end face of the annular body hits the peripheral edge of the through hole. Can be touched. That is, it is possible to more reliably receive the filler in which the contact portion is filled in the gap.

The schematic perspective view of the through-passage forming apparatus of one Embodiment (1st Embodiment) of this invention. (A) front view, (b) side view and (c) AA cross-sectional view of the gangway forming device of FIG. The schematic perspective view of the fire protection compartment structure (filling material is not shown) of one Embodiment of this invention. (A) front view and (b) BB sectional view of the fire protection compartment structure of FIG. The schematic which shows each step of the method of constructing the fire protection compartment structure of FIG. (A) front view and (b) CC sectional view of the fire protection compartment structure of another embodiment of the present invention using the gangway forming device of FIG. (A) front view and (b) DD sectional view of the fire protection compartment structure of another embodiment of the present invention using the gangway forming device of FIG. The schematic perspective view of the through-passage forming apparatus of one Embodiment (second Embodiment) of this invention. (A) front view, (b) side view, and (c) EE sectional view of the gangway forming device of FIG. The schematic perspective view of the fire protection compartment structure (filler is not shown) of one Embodiment of this invention. (A) front view and (b) FF sectional view of the fire protection compartment structure of FIG. The schematic which shows each step of the method of constructing the fire protection compartment structure of FIG. (A) front view and (b) GG cross-sectional view of the fire protection compartment structure of another embodiment of the present invention using the gangway forming device of FIG. (A) Front view and (b) HH sectional view of the fire protection compartment structure of another embodiment of the present invention using the gangway forming device of FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The shapes of the figures referred to in the following description are conceptual diagrams or schematic views for explaining suitable shape dimensions, and the dimensional ratios and the like do not always match the actual dimensional ratios. That is, the present invention is not limited to the dimensional ratio in the drawings.

[First Embodiment]
The gangway forming device 100 according to the embodiment of the present invention is installed in the gangway hole 12 formed in the wall material 11 in the fire protection compartment structure 10 (see FIGS. 3 and 4), and the wiring / piping material passes through the through hole 12. It is used to form a through-passage for. The through-passage forming device 100 and the filling assisting tool (annular body 111) of the present embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a schematic perspective view seen from the front side or the back side of the gangway forming device 100. 2 (a) to 2 (c) are a front view, a side view, and a vertical cross-sectional view of AA of the gangway forming device 100.

As shown in FIGS. 1 and 2, the gangway forming device 100 includes a tubular body 101 for interpolating wiring and piping materials, and a pair of annular bodies 111 as filling assisting tools attached to the tubular body 101. .. As will be described later, the through-passage forming device 100 is configured so that a predetermined amount of filler 121 is filled in the gap S between the inner peripheral surface of the through-hole 12 and the outer peripheral surface of the tubular body 101 inserted in the through-hole 12. ing.

The tubular body 101 is a hollow cylindrical tube extending in the longitudinal direction with a uniform diameter. The tubular body 101 is made of a metal such as a steel material so as to exhibit a predetermined fire resistance. The tubular body 101 has openings 102 at both ends and has an inner diameter into which one or more wiring / piping materials can be inserted. Further, the length of the tubular body 101 is at least larger than the length of the through hole 12 drilled in the wall material 11, and the outer diameter of the tubular body 101 is smaller than the inner diameter of the through hole 12. ..

Each annular body 111 has a ring shape having a predetermined width (thickness) in the longitudinal direction of the tubular body 101, and has an outer peripheral surface and an inner peripheral surface forming a circumferential surface. Further, a contact portion 112 is formed on one of the side surfaces connecting the outer peripheral surface and the inner peripheral surface of each annular body 111. The contact portion (or contact surface) 112 has a plane perpendicular to the axis of the tubular body 101, and is formed so as to face the open end of the through hole 12. That is, as will be described later, the contact portion 112 is configured to receive the filler 121 filled in the gap S from the open end of the through hole 12.

Further, the annular body 111 is made of a material having a cushioning property that can be compressively deformed. Specifically, in the present embodiment, the annular body 111 is made of a foam (sponge) made of a synthetic resin such as polyethylene or urethane. In particular, since the annular body 111 has a cushioning property that deforms so as to reduce its volume as compared with elastically deformable rubber or the like, its shape is freely deformed by an external force, and a narrow gap S is provided. Can easily enter. Further, in the present embodiment, the foam is non-thermally expandable and non-fire resistant. However, expanded graphite may be dispersed in the foam to provide thermal expansion, or it may be nonflammable or flame-retardant. The inner diameter of the annular body 111 is substantially equal to or slightly smaller than the outer diameter of the tubular body 101, and the inner peripheral surface thereof adheres to the outer peripheral surface of the tubular body 101 without a gap. On the other hand, the outer diameter of the annular body 111 is larger than the diameter of the through hole 12 of the wall material 11 of the fire protection compartment structure 10. The width of the annular body 111 is determined so as to have a strength capable of receiving the filler 121 filled in the gap from the opening end of the through hole 12.

The annular body 111 is formed by winding a long strip having an adhesive layer on the inner peripheral surface around the tubular body 101. The annular body 111 is integrally attached to the outer peripheral surface of the tubular body 101 via the inner peripheral surface (adhesive layer). That is, by adjusting the length of the band, it is possible to correspond to a cylinder of various sizes, and the band can be easily attached to the cylinder by sticking.

In the gangway forming device 100, a pair of annular bodies 111 are formed so as to occupy a part of a region in the longitudinal direction of the outer peripheral surface of the tubular body 101. Each annular body 111 projects radially outward from the outer peripheral surface of the tubular body 101 at a predetermined position in the longitudinal direction of the tubular body 101 in a flange shape. In the pair of annular bodies 111, the contact portions 112 are defined as surfaces facing the opening 101 side of the tubular body 101, not as surfaces facing each other. Further, the position of the annular body 111 in the tubular body 101 in the longitudinal direction is such that when the through-passage forming device 100 is installed in the through-hole 12, each contact portion 112 is a predetermined distance d from each opening end of the through-hole 12 (FIG. 4). (Refer to (b)), it is set to be separated. The predetermined distance d from the opening end of the through hole 12 to the contact portion 112 determines the volume of the filling space filled with the filler 121. In other words, in the fire protection compartment structure 10, the predetermined distance d is determined based on the amount (volume) of the filler 121 required to satisfy the predetermined fire resistance performance (fire resistance standard), and the tubular body 101 is determined based on the predetermined distance d. The attachment position of the annular body 111 (or the distance between the contact portions 114) in the longitudinal direction of the ring body 111 was determined.

That is, the annular body 111 is filled with a predetermined amount of the filler 121 in the gap S between the inner peripheral surface of the through hole 12 formed in the wall material 11 and the outer peripheral surface of the tubular body 101 inserted in the through hole 12. It was formed as a filling aid to assist. In other words, the filling aid comprises an annular body 111 mounted on the outer peripheral surface of the tubular body 101 at a predetermined position in the longitudinal direction of the tubular body 101, and the annular body 111 is filled in the gap S from the opening end of the through hole 12. A contact portion 112 configured to receive the filler 121 to be formed is provided, and a filling space for the filler 121 is defined between the contact portion 112 and the opening end so as to satisfy a predetermined fire resistance performance.

Subsequently, with reference to FIGS. 3 and 4, the fire protection compartment structure 10 constructed by the filling aid and the gangway forming device 100 of the present embodiment will be described. The fire protection compartment structure 10 is configured so that wiring and piping materials can be arranged so as to penetrate both spaces separated by the wall material 11. FIG. 3 is a schematic perspective view of the fire protection compartment structure 10 (filler is not shown). 4 (a) and 4 (b) are a front view and a cross-sectional view taken along the line BB of the fire protection compartment structure 10.

As shown in FIGS. 3 and 4, the fire protection compartment structure 10 of the present embodiment includes a fireproof wall material 11 in which the through hole 12 is bored, and a gangway forming device 100 installed in the through hole 12. A predetermined amount of filler 121 filled in the gap S between the inner peripheral surface of the through hole 12 and the outer peripheral surface of the tubular body 101 is provided. In the present embodiment, the wall material 11 is a hollow wall composed of a pair of walls 11-1 and 11-2, each of which is perforated with wall holes 12-1 and 12-2. Each wall 11-1 and 11-2 has a wall surface on the front side of the wall and a back surface on the hollow space side between the walls 11-1 and 11-2. Then, a pair of wall holes 12-1 and 12-2 formed in the walls 11-1 and 11-2 communicate with each other to form a through hole 12. Here, it may be interpreted that a virtual inner peripheral surface of the through hole 12 is formed in the hollow space.

In the fire protection compartment structure 10, the tubular body 101 is arranged in the through hole 12 so that both ends project from the wall surface, and wiring / piping material can be inserted. In the present embodiment, the tubular body 101 is arranged in the through hole 12 so that the central axis of the tubular body 101 and the center of the through hole 12 are aligned with each other. Then, the annular body 111 projects radially outward from the outer peripheral surface of the tubular body 101 and is located in the hollow space of the wall material 11. The annular bodies 111 are arranged adjacent to or close to the back surface of the walls 11-1 and 11-2. Since the outer diameter of the annular body 111 is larger than the diameter of the through hole 12, the annular body 111 extends radially outward beyond the outer circumference of the through hole 12. As shown in FIG. 4B, the contact portion 112 of the annular body 111 is in contact with the back surface of the walls 11-1 and 11-2 (peripheries of the wall holes 12-1 and 12-2). preferable.

As shown in FIG. 4B, a gap S is formed between the outer peripheral surface of the tubular body 101 and the inner peripheral surface of the through hole 12. In the gap S, between the open end of the through hole 12 and the abutting portion 112 of each annular body 111 so that the filler 121 abuts on the inner peripheral surface of the through hole 12 and the abutting portion 112 of the annular body 111. A filling space filled with an appropriate amount of filler 121 is formed. That is, the filler 121 is filled in the filling space formed in the gap S so as to satisfy a predetermined fire resistance performance without excess or deficiency. That is, the volume of the filling space is determined by the distance d (or the position of the contact portion 112) between the open end of the through hole 12 and the contact portion 112, and the volume of the filling space satisfies a predetermined fire resistance. Corresponds to the volume of filler required for. In other words, the distance between the abutting portions 112 of the pair of annular bodies 111 is equal to the length of the through hole 12 (the distance between the surfaces of both walls of the wall material 11) minus 2d.

In the fire protection compartment structure 10, since the contact portion 112 is in contact with the filler 121, the contact portion 112 acts to block the filler 121, and the filler 121 falls into the hollow space of the wall material 11. Is suppressed. As a result, the fire protection compartment structure 10 satisfies a predetermined fire resistance performance, and flames, smoke, and the like are prevented from passing through the gap between the tubular body 101 and the inner peripheral surface of the through hole 12 in the event of a fire.

The filler 121 is made of a nonflammable sealing material. For example, the filler 121 may be selected from non-flammable or flame-retardant materials such as non-combustible putty, rock wool, glass wool, mortar and the like. Alternatively, the filler 121 is a putty or clay-like heat-expandable heat-resistant sealing material, and when exposed to high heat (for example, 300 ° C. or higher), the volume expands more than twice as much as before heating (expanded graphite). Etc. may be mixed materials.

In addition, the prescribed fire resistance (standard) is the fire resistance certified by the Minister of Land, Infrastructure, Transport and Tourism as conforming to the provisions of "Building Standards Law Construction Ordinance Article 129-2-5, Paragraph 1, Item 7 C". To say. Specifically, according to "Building Standard Law Construction Ordinance Article 129-2-5, Paragraph 1, Item 7 C", "When the heat of a normal fire is applied to the pipe penetrating the fire protection area, etc." , Twenty minutes after the start of heating (in the case of dividing every floor area within 200 square meters in total according to the provisions of Article 112, paragraphs 1 to 4 and Article 112, paragraph 5 (in accordance with the provisions of Article 112, paragraph 6) Or, only when the floor area is divided within a total of 500 square meters pursuant to the provisions of paragraph 7 of the same Article), and paragraph 8 of the same Article (within a total floor area of 200 square meters or less pursuant to the provisions of paragraph 6 of the same Article). (Limited to the case where the floor area is divided within 500 square meters in total according to the provisions of paragraph 7 of the same Article) or the floor or wall of the quasi-fireproof structure or the 100th For the fire protection wall set forth in Article 13, paragraph 1, one hour, the boundary wall set forth in Article 114, paragraph 1, the partition wall set forth in Article 114, paragraph 2, or the partition wall set forth in Article 13, paragraph 3 or 4 Forty-five minutes) It must be certified by the Minister of Land, Infrastructure, Transport and Tourism as not causing cracks or other damage that causes flames to be emitted on the opposite side of the heating side of the fire protection area. " ing. That is, in the fire resistance test, when heat is applied to the wiring / piping material penetrating the fire protection compartment structure 10, at least 20 minutes (45 minutes, 1 hour depending on the object) after the start of heating, the gap S is cracked or otherwise. The amount of filler 121 was determined so as not to cause damage to the filler 121.

Subsequently, a method of constructing the fire protection compartment structure 10 will be described with reference to FIG. First, the gangway forming device 100 in which the annular body 111 is mounted on the tubular body 101 is prepared. Next, the through-passage forming device 100 is inserted into the through-hole 12 in a state where the annular body 111 is compressed and deformed inward in the radial direction. Specifically, as shown in FIG. 5A, when the tubular body 101 is inserted from the end into the through hole 12 formed in the wall material 11, the opening edge of the through hole 12 has a larger diameter (larger diameter). The annular body 111 comes into contact with the annular body 111, and the annular body 111 is compressed and deformed inward in the radial direction of the tubular body 101 while advancing inward through the through hole 12. At this time, since the annular body 111 is made of a foam, it is easily compressed and deformed so as to match the shape of the inner peripheral surface of the through hole 12.

Then, the annular body 111 on the front side is moved to a position separated from the opening end of the through hole 12 by a predetermined distance d to form a filling space for accommodating an appropriate amount of the filler 121 satisfying the predetermined fire resistance. Then, the distance between the contact portion 112 of each annular body 111 and the open end of the through hole 12 is d. Specifically, the tubular body 101 is inserted into the through hole 12 until the position where both of the pair of annular bodies 111 are arranged in the hollow space between the pair of walls 11-1 and 11-2, and the contact of each annular body 111 is reached. The contact portion 112 is returned to its original shape and brought into contact with the peripheral edges of the wall holes 12-1 and 12-2. As a result, a filling space having a predetermined volume can be formed between the end of the through hole 12 and the contact portion 112.

Subsequently, as shown in FIG. 5B, the gap S between the inner peripheral surface of the through hole 12 and the outer peripheral surface of the tubular body 101 is filled from the open end of the through hole 12 until it comes into contact with the abutting portion 112 of the annular body 111. , The filling space is filled with the filler 121 so that the predetermined fire resistance is satisfied. In this step, it is difficult for the operator to visually confirm the amount of the filler 121 partially filled in the gap S from the wall surface side. However, when the operator fills the gap S from the opening end of the through hole 12 by a predetermined amount, the contact portion 112 of the annular body 111 receives the filler 121, and the filler 121 may be further filled. become unable. If the annular body 111 does not exist, if the amount of the filler 121 to be packed is large, the filler 121 may fall into the hollow space of the wall material 11, and the filler 121 may be wasted. Alternatively, the amount of the filler 121 to be packed becomes small, and the operator cannot visually confirm it after the fact, and there is a possibility that the predetermined fire resistance performance is not actually obtained. On the other hand, in the step, since the annular body 111 (contact portion 112) receives the filler 121, the filling space can be filled with the appropriate amount of the filler 121 by using an appropriate amount of the filler 121 in just proportion. ..

As a result, the fire protection compartment structure 10 of FIG. 4 is constructed. Although not shown, a wiring / piping material is inserted inside the cylinder 101 of the fire protection compartment structure 10, and a heat-expandable fireproof material or the like is provided between the outer peripheral surface of the wiring / piping material and the inner peripheral surface of the cylinder 101. By filling or arranging the fire-resistant member of the above, it is possible to take fire-prevention measures in the space through the wall material 11 in the state where the wiring / piping material is arranged.

The gangway forming device 100 of the present embodiment is not limited to the above embodiment, and can be used for wall materials having other structures, other arrangement forms, and the like. In other words, the fire protection compartment structure of the present invention may take other forms with the same gangway forming device 100.

For example, in the fire protection compartment structure 10'of FIG. 6, the wall material 11' is composed of a solid wall instead of a hollow wall, and the through-passage forming device 100 is arranged in the through-hole 12'. In the form of FIG. 6, the gap S between the outer peripheral surface of the tubular body 101 and the inner peripheral surface of the through hole 12'extends between both open ends of the through hole 12'of the wall material 11'. Further, as shown in FIG. 6B, the annular body 111 is compressionally deformed inward in the radial direction, and its outer peripheral surface is in close contact with the inner peripheral surface of the through hole 12. Then, the contact portion 112 (the surface facing the opening end) of the annular body 111 is in contact with the filler 121. In the gap S, a filling space filled with the filler 121 is formed between each open end of the through hole 12 and each contact portion 112. On the other hand, in the gap S, no filling space is formed between the pair of annular bodies 111 (between the opposite surfaces of the contact portion 112), and a gap is formed. That is, in the fire protection compartment structure 10', since the contact portion 112 receives the filler 121 filled from the open end, the gap S is filled with an appropriate amount of the filler 121 that satisfies a predetermined fire resistance performance. ing. If the annular body 111 does not exist, the operator cannot visually confirm the filling amount of the filler 121, so that the gap S is filled with an appropriate amount of the filler 121 that satisfies a predetermined fire resistance performance. Becomes difficult. For example, the voids in the gap S may become large and it may not be possible to achieve a predetermined fire resistance performance, or the voids in the gap S may become small and the filler 121 may be wasted too much. Therefore, in the fire protection compartment structure 10', the gap S is filled with an appropriate amount of the filler 121 in just proportion.

Further, the fire protection compartment structure 10 "in FIG. 7 is constructed so that the center of the through hole 12" and the central axis of the tubular body 101 of the gangway forming device 100 are eccentric. Therefore, a gap is partially formed between the peripheral edge of the through hole 12 "and the contact portion 112, and the through hole 12" is not completely covered by the contact portion 112. Similarly, in the fire protection compartment structure 10 ", a filling space for the filler 121 is formed between the contact portion 112 in the gap S and the open end of the through hole 12". That is, even if the abutting portion 112 does not completely cover the through hole 12 ", the abutting portion 112 can receive the filler 121 at the time of filling. Therefore, in the fireproof partition structure 10", an appropriate amount of the filling material S is filled. The material 121 is filled without excess or deficiency.

Hereinafter, the operation and effect of the gangway forming device 100 (filling aid 111) according to the embodiment of the present invention will be described.

According to the through-passage forming device 100 of the present embodiment, the annular body 111 is formed so as to protrude radially outward from the outer peripheral surface of the tubular body 101, and the annular body 111 is formed from the opening end of the through holes 12 and 12'to the back. It is provided with a contact portion 112 configured to receive the filler 121 pushed into. The annular body 111 has a cushioning property that can be compressed and deformed inward in the radial direction of the tubular body 101, and in the original shape of the annular body 111, the outer diameter of the annular body 111 is larger than the diameter of the through holes 12 and 12'. big. Further, when the through-passage forming device 100 is installed in the through-holes 12 and 12', the tubular body 101 is separated from the opening end of the through-holes 12 and 12'by a predetermined distance d in the longitudinal direction. An annular body 111 is formed at a predetermined position. Then, a filling space for accommodating an appropriate amount (volume) of the filler 121 satisfying a predetermined fire resistance is defined between the contact portion 112 and the through holes 12 and 12'open ends. When the annular body 111 of the gangway forming device 100 is arranged in the hollow space of the hollow wall (wall material 11), the outer diameter of the annular body is larger than the diameter of the through hole in the original shape of the annular body. The end face of the can be brought into contact with the peripheral edge of the through hole. Further, when the through-passage forming device 100 is installed in the through-hole 12'of the solid wall (wall material 11'), the annular body 111 is arranged in the through-hole 12'in a state of being compressed and deformed, and the outer circumference of the annular body 111 is arranged. The surface can be brought into close contact with the inner peripheral surface of the through hole 12'. That is, when the operator fills the gap S with the filler 121 from the opening ends of the through holes 12 and 12'and the filling amount reaches a predetermined amount, the filler 121 on the back side is locked to the contact portion 112. Since the filler 121 is prevented from entering the back side of the contact portion 112, the operator cannot fill the filler any more. As a result, the filling space defined between the contact portion 112 and the through holes 12 and 12'open ends is filled with an appropriate amount of filler without excess or deficiency, and desired fire resistance is realized.

[Second Embodiment]
As shown in FIGS. 8 and 9, the gangway forming device 200 includes a tubular body 201 for interpolating wiring / piping materials and one annular body 211 as a filling auxiliary tool attached to the tubular body 201. .. The through-passage forming device 200 is configured so that a predetermined amount of filler 221 is filled in the gap S between the inner peripheral surface of the through-hole 22 and the outer peripheral surface of the tubular body 201 inserted in the through-hole 22. The through-passage forming device 200 of the second embodiment is different from the first embodiment in the form of the annular body 211, and other configurations are common. Therefore, the description of the common configuration will be omitted here.

The annular body 211 has a ring shape having a predetermined width (thickness) in the longitudinal direction of the tubular body 201, and has an outer peripheral surface and an inner peripheral surface forming a circumferential surface. Further, the contact portion 212 is formed on both the outer peripheral surface and the inner peripheral surface of the annular body 211 to be connected to each other. The contact portion (or contact surface) 212 has a plane perpendicular to the axis of the tubular body 201, and is formed so as to face the open end of the through hole 22. That is, as will be described later, the contact portion 212 is configured to receive the filler 221 filled in the gap S from the open end of the through hole 22. The materials of the annular body 211 and the filler 221 may be the same as those in the first embodiment.

The inner diameter of the annular body 211 is substantially equal to or slightly smaller than the outer diameter of the tubular body 201, and the inner peripheral surface thereof is configured to adhere to the outer peripheral surface of the tubular body 201 without gaps. On the other hand, the outer diameter of the annular body 211 is larger than the diameter of the through hole 22 of the wall material 21 of the fire protection compartment structure 20. The width of the annular body 211 (in the longitudinal direction of the tubular body 201) is determined to have a strength capable of receiving the filler 221 filled in the gap from the opening end of the through hole 22. Further, the width of the annular body 211 is determined so that a filling space having a volume capable of accommodating an amount of the filler 221 satisfying a predetermined fire resistance can be formed on both open end sides of the through hole 22. Specifically, as shown in FIG. 11B, 2d from the perforation length (thickness of the wall material 21) of the through hole 12 so that the distance between the open end of the through hole 12 and the contact portion 212 is d. The length obtained by subtracting the above was determined as the width of the annular body 211.

The annular body 211 is formed by winding a long strip having an adhesive layer on its inner peripheral surface around the tubular body 201. The annular body 211 is integrally attached to the outer peripheral surface of the tubular body 201 via the inner peripheral surface 212 (adhesive layer).

In the gangway forming device 200, the integral annular body 21 is formed so as to occupy a part of the region in the longitudinal direction of the outer peripheral surface of the tubular body 201. Each annular body 211 is radially outward from the outer peripheral surface of the tubular body 201 at a predetermined position in the longitudinal direction of the tubular body 201 (a position where the contact portion 212 is separated from each opening end of the through hole 22 by a predetermined distance d). It protrudes like a flange. In the present embodiment, the inner peripheral surface of the annular body 211 is adhered to the outer peripheral surface of the tubular body 201 with an adhesive in a substantially central region in the longitudinal direction of the tubular body 201. Further, the distance between the contact portion 212 and the end portion of the tubular body 201 is larger than the distance d from the opening end of the through hole 22 to the contact portion 212 when the through-passage forming device 200 is installed in the through hole 22.

That is, the annular body 211 fills the gap S between the inner peripheral surface of the through hole 22 formed in the wall material 21 and the outer peripheral surface of the tubular body 201 inserted in the through hole 22 with a predetermined amount of the filler 221. It was formed as a filling aid to assist. In other words, the filling aid comprises an annular body 211 mounted on the outer peripheral surface of the tubular body 201 at a predetermined position in the longitudinal direction of the tubular body 201, and the annular body 211 is filled in the gap S from the opening end of the through hole 22. A contact portion 212 configured to receive the filler 221 to be formed is provided, and a filling space for the filler 221 is defined between the contact portion 212 and the opening end so as to satisfy a predetermined fire resistance performance.

Subsequently, with reference to FIGS. 10 and 11, the fire protection compartment structure 20 constructed by the filling aid and the gangway forming device 200 of the present embodiment will be described. FIG. 10 is a schematic perspective view of the fire protection compartment structure 20 (filler is not shown). 11 (a) and 11 (b) are a front view and an EE cross-sectional view of the fire protection compartment structure 20.

As shown in FIGS. 10 and 11, the fireproof compartment structure 20 of the present embodiment includes a fireproof wall material 21 in which a through hole 22 is bored and a through-passage forming device 200 installed in the through hole 22. A predetermined amount of filler 221 filled in the gap S between the inner peripheral surface of the through hole 22 and the outer peripheral surface of the tubular body 201 is provided. In the present embodiment, the wall material 21 is a single solid wall in which the through holes 22 are perforated.

In the fire protection compartment structure 20, the tubular body 201 is arranged in the through hole 22 so that both ends project from the wall surface, and the wiring / piping material can be inserted. In the present embodiment, the tubular body 201 is arranged in the through hole 22 so that the central axis of the tubular body 201 and the center of the through hole 22 coincide with each other. The annular body 211 projects radially outward from the outer peripheral surface of the tubular body 201, and is located substantially at the center of the wall material 21 in the thickness direction. Since the outer diameter of the annular body 211 is larger than the diameter of the through hole 22, the annular body 211 is compressed and deformed inward in the radial direction, and its outer peripheral surface is in close contact with the inner peripheral surface of the through hole 22.

As shown in FIG. 11, a gap S is formed between the outer peripheral surface of the tubular body 201 and the inner peripheral surface of the through hole 22. In the gap S, between the open end of the through hole 22 and the abutting portion 212 of each annular body 211 so that the filler 221 abuts on the inner peripheral surface of the through hole 22 and the abutting portion 212 of the annular body 211. A filling space filled with an appropriate amount of filler 221 is formed. That is, the filler 221 is filled in the filling space formed in the gap S so as to satisfy a predetermined fire resistance performance without excess or deficiency. That is, the volume of the filling space is determined by the distance d (or the position of the contact portion 212) between the opening end of the through hole 22 and the contact portion 212, and the volume of the filling space satisfies a predetermined fire resistance. Corresponds to the volume of filler 221 required for

In the fire protection compartment structure 20, since the contact portion 212 is in contact with the filler 221, the contact portion 212 acts to block the filler 221 and prevents the filler 221 from shifting in the through hole 22. Has been done. As a result, the fire protection compartment structure 20 satisfies a predetermined fire resistance performance, and flames, smoke, and the like are prevented from passing through the gap between the cylinder 201 and the inner peripheral surface of the through hole 22 in the event of a fire.

Subsequently, a method of constructing the fire protection compartment structure 20 will be described with reference to FIG. First, the gangway forming device 200 in which the annular body 211 is mounted on the tubular body 201 is prepared. Next, the through-passage forming device 200 is inserted into the through-hole 22 in a state where the annular body 211 is compressed and deformed inward in the radial direction. Specifically, as shown in FIG. 12A, when the tubular body 201 is inserted from the end into the through hole 22 formed in the wall material 21, the opening edge of the through hole 22 has a larger diameter (larger diameter). The annular body 211 comes into contact with the annular body 211, and the annular body 211 is compressed and deformed inward in the radial direction of the tubular body 201 while advancing inward through the through hole 22. At this time, since the annular body 211 is made of a foam, it is easily compressed and deformed to match the shape of the inner peripheral surface of the through hole 22.

Then, the annular body 211 is moved to a position separated from the opening end of the through hole 22 by a predetermined distance d to form a filling space for accommodating an appropriate amount of the filler 221 satisfying the predetermined fire resistance. Specifically, when the through-passage forming device 200 is inserted into the through-hole 22, the tubular body 201 is formed until the distance between the open end of the through-hole 22 and the contact portion 212 becomes a predetermined predetermined distance d. Push it into the through hole 22. When the distance from the opening end of one through hole 22 to the contact portion 212 is d, the distance from the opening end of the other through hole 22 to the contact portion 212 is also d in the longitudinal direction of the annular body 211. The width of is defined. As a result, a filling space having a predetermined volume can be formed between the open end of the through hole 22 and the contact portion 212.

Subsequently, as shown in FIG. 12B, from the open end of the through hole 22 to the contact portion 212 of the annular body 211 in the gap S between the inner peripheral surface of the through hole 22 and the outer peripheral surface of the tubular body 201. It is filled and the filling space is filled with filler 221 so that a predetermined fire resistance is satisfied. In this step, it is difficult for the operator to visually confirm the amount of the filler 221 partially filled in the gap S from the wall surface side. However, when the operator fills the gap S from the opening end of the through hole 22 by a predetermined amount, the contact portion 212 of the annular body 211 receives the filler 201, and the filler 221 may be further filled. become unable. If the annular body 211 does not exist, the amount of the filler 221 to be packed becomes too large, and the filler 221 may be wasted. Alternatively, the amount of the filler 221 to be packed becomes small, and the operator cannot visually confirm it after the fact, and there is a possibility that the predetermined fire resistance performance is not actually obtained. On the other hand, in the step, since the annular body 211 (contact portion 212) receives the filler 201, the filling space can be filled with the appropriate amount of the filler 221 by using an appropriate amount of the filler 221 that is not excessive or insufficient. ..

As a result, the fire protection compartment structure 20 of FIG. 10 is constructed. Although not shown, a wiring / piping material is inserted inside the cylinder 201 of the fire protection compartment structure 20, and a heat-expandable fireproof material or the like is provided between the outer peripheral surface of the wiring / piping material and the inner peripheral surface of the cylinder 201. By filling or arranging the fireproof member of the above, it is possible to take fire prevention measures in the space through the wall material 21 with the wiring / piping material arranged.

The gangway forming device 200 of the present embodiment is not limited to the above embodiment, and can be used for wall materials having other structures, other arrangement forms, and the like. In other words, the fire protection compartment structure of the present invention may take other forms with the same gangway forming device 200.

For example, in the fire protection compartment structure 20'of FIG. 13, the wall material 21' is composed of a hollow wall instead of a solid wall, and the through-passage forming device 200 is arranged in the through-hole 22. In the form of FIG. 13, the annular body 211 is arranged in the hollow space between the pair of walls 21'-1,21'-2 constituting the wall material 21'. The annular body 211 has returned from its compressed form to its original shape in a hollow space, and each contact portion 212 has a wall hole 22'-1,22'-on the back surface of each wall 21'-1,21'-2. 2 It is in contact with the peripheral edge. Then, the contact portion 212 (the surface facing the opening end) of the annular body 211 is in contact with the filler 221. In the gap S, a filling space filled with the filler 221 is formed between each open end of the through hole 22 and each contact portion 212. That is, in the fire protection compartment structure 20', since the contact portion 212 receives the filler 221 filled from the open end, the gap S is filled with an appropriate amount of the filler 221 satisfying a predetermined fire resistance performance. ing. If the annular body 211 does not exist, if the amount of the filler 221 to be packed is large, the filler 221 may fall into the hollow space of the wall material 21', and the filler 221 may be wasted. Alternatively, the amount of the filler 221 to be packed becomes small, and the operator cannot visually confirm it after the fact, and there is a possibility that the predetermined fire resistance performance is not actually obtained. On the other hand, in the fire protection compartment structure 20', the gap S is filled with an appropriate amount of filler 221 in just proportion.

Further, the fire protection compartment structure 20 "in FIG. 14 is constructed so that the center of the through hole 22" and the central axis of the tubular body 201 of the gangway forming device 200 are eccentric. Therefore, a gap is partially formed between the peripheral edge of the through hole 22 "and the contact portion 212, and the through hole 22" is not completely covered by the contact portion 212. Similarly, in the fire protection compartment structure 20 ", a filling space for the filler 221 is formed between the contact portion 212 in the gap S and the opening end of the through hole 22". That is, even if the abutting portion 212 does not completely cover the through hole 22 ", the abutting portion 212 can receive the filler 221 at the time of filling. Therefore, in the fireproof partition structure 20", an appropriate amount of the filling material S is filled. The material 221 is filled without excess or deficiency.

That is, the gangway forming device 200 of one embodiment according to the present invention can exhibit the same effects as the gangway forming device 100 of the first embodiment.

[Modification example]
The present invention is not limited to the above embodiment, and various modifications can be taken. Hereinafter, modifications of the present invention will be described.

(1) In the above embodiment, the inner circumference of the through hole, the outer circumference of the tubular body, and the outer circumference of the annular body are formed in a circular shape, but the present invention is not limited to the above embodiment. For example, the inner circumference of the through hole, the outer circumference of the cylinder, and all or part of the outer circumference of the annular body may be oval, oval, polygonal, or the like instead of circular. Further, in the above embodiment, the tubular body is configured to have a uniform diameter in the longitudinal direction, but may be formed so that the diameter changes. That is, it goes without saying that the shape and dimensions thereof can be appropriately modified by those skilled in the art as long as they are included in the technical scope of the present invention.

(2) In the above embodiment, the annular body is adhered to the outer surface of the tubular body, but the present invention is not limited to the above embodiment. For example, the annular body may be attached to the tubular body in a state in which the inner circumference of the annular body is made smaller than the outer circumference of the tubular body and is expanded and deformed so as to expand outward. In this case, the annular body is attracted to the tubular body by the elastic return force to the original shape, and the frictional force between the peripheral surface of the annular body and the outer peripheral surface of the tubular body suppresses the movement of the annular body in the longitudinal direction.

(3) In the above embodiment, in the case of a hollow wall composed of a pair of walls, a filling space is formed over the entire thickness of each wall (the entire gap of each wall hole), but the present invention is not limited to this. For example, if each wall is sufficiently thick, a part of the annular body may be arranged in a compressed state in the wall hole, and a filling space may be formed in a part of the thickness of each wall. Alternatively, when each wall is thin, the contact portion of the annular body may be arranged so as to be separated from the back surface of the wall of each wall, and the filling material may be filled up to the hollow space between the pair of walls. In this case, it is considered that the inner peripheral surface of the virtual through hole is formed in the hollow space and a gap exists in the hollow space as well.

(4) In the above embodiment, the annular body is made of a sponge-like foam, but generally it may be a rubber or a hard member having no cushioning property as compared with the foam. However, the annular body of the modified example is different from the annular body made of the foam of the above embodiment in terms of adhesion to the inner peripheral surface of the through hole and ease of handling (easiness of placement in the through hole). I worship the dust.

The present invention is not limited to the above-described embodiments and modifications, and can be implemented in various embodiments as long as it belongs to the technical scope of the present invention.

10,20 Fire protection compartment structure 11,21 Wall material 12,22 Through hole 100, 200 Through path forming device 101, 201 Cylindrical body 102, 202 Opening 111,211 annular body (filling aid)
112,212 Contact part 121,212 Filler S gap d Distance between the end of the through hole and the contact part

Claims (3)

It is a fireproof compartment structure of a building where wiring and piping materials can be arranged.
A fireproof wall material consisting of a pair of walls and having through holes in the walls.
A cylinder that is placed in the through hole and inserts wiring and piping materials,
An annular body that annularly protrudes radially outward from the outer peripheral surface of the tubular body at a position separated from the opening end of the through hole by a predetermined distance.
A predetermined amount of filler filled in the gap between the inner peripheral surface of the through hole and the outer peripheral surface of the cylinder is provided.
The annular body is provided with a contact portion configured to be able to contact the filler filled in the gap from the open end of the through hole.
The annular body is arranged in the space between the pair of walls, and the contact portion of the annular body contacts the filler and at least partially hits the peripheral edge of the through hole on the back surface of the wall. In contact with
A fire protection compartment structure characterized in that a filling space is defined between the contact portion and the open end of the through hole so that a predetermined fire resistance performance is satisfied, and the filling space is filled with the filler. .. It is a method of constructing a fireproof compartment structure in which wiring and piping materials can be arranged in through holes drilled in a fireproof wall material.
An annular body in which wiring and piping materials are inserted and an annular body that is mounted at a predetermined position in the longitudinal direction of the cylinder body so as not to move in the longitudinal direction and projects radially outward from the outer peripheral surface of the cylinder body. The process of preparing a through-passage forming device equipped with a body,
The step of inserting the through-passage forming device into the through-hole, and
A filling space in which the annular body is moved to a position separated from the opening end of the through hole by a predetermined distance, and a filler made of an appropriate amount of nonflammable or flame-retardant material or a heat-expandable material satisfying a predetermined fire resistance is accommodated. And the process of forming
The gap between the inner peripheral surface of the through hole and the outer peripheral surface of the cylinder is filled from the open end of the through hole until it comes into contact with the abutting portion of the annular body, and the filling is performed so as to satisfy a predetermined fire resistance. a step of filling the space with the filler, only including,
The annular body has a cushioning property that can be compressed and deformed inward in the radial direction of the tubular body, and has an outer diameter larger than the diameter of the through hole in the original shape.
The wall material is a hollow wall composed of a pair of walls in which the through holes are bored.
The through-passage forming device is inserted into the through-hole in a state where the annular body is compressed and deformed inward in the radial direction.
The annular body is placed in the space between the pair of walls to restore the original shape, and the contact portion of the annular body is at least partially contacted with the peripheral edge of the through hole on the back surface of the wall. A method characterized by that. It is a method of constructing a fireproof partition structure in which wiring / piping material can be arranged in a through hole formed in a fireproof wall material, and the wall material is formed from a pair of walls in which the through hole is formed. It is a hollow wall
A tubular body into which wiring / piping materials are inserted and an annular body that annularly protrudes radially outward from the outer peripheral surface of the tubular body at a predetermined position in the longitudinal direction of the tubular body are provided. A step of preparing a through-passage forming device having a cushioning property that can be compressed and deformed inward in the radial direction of the cylinder and having an outer diameter larger than the diameter of the through hole in the original shape.
The step of inserting the through-passage forming device into the through-hole, and
The annular body is moved to a position separated from the opening end of the through hole by a predetermined distance, and the annular body is arranged in the space between the pair of walls to return to the original shape, and the contact portion of the annular body is restored. Is at least partially abutted on the peripheral edge of the through hole on the back surface of the wall to accommodate a filler made of an appropriate amount of non-flammable or flame-retardant material or heat-expandable material satisfying a predetermined fire resistance performance. The process of forming the filling space and
The gap between the inner peripheral surface of the through hole and the outer peripheral surface of the cylinder is filled from the open end of the through hole until it comes into contact with the abutting portion of the annular body, so that the predetermined fire resistance is satisfied. A method comprising a step of filling a filling space with the filler.

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