JP7601711B2 - Filler installation structure for through hole and insert member - Google Patents

Description

The present invention relates to a filler installation structure and an insertion member for a through hole formed by filling a through hole in a fire compartment body with a filler.

A through hole is formed in the fire compartment wall, which serves as a fire compartment in a building, to allow wiring and piping materials to pass through the fire compartment wall. A fire-resistant filler is filled between the through hole and the wiring and piping material. A frame is formed in the through hole in the fire compartment wall to fill the filler between the through hole and the wiring and piping material. To form this frame, an insert member is inserted into the through hole.

For example, the frame constituent material disclosed in Patent Document 1 is arranged in multiple pieces in a fire compartment wall. The frame constituent material has an abutment portion with a wall surface of the fire compartment wall, and a span portion of a length that allows the fire compartment wall to span from one end to the other end in the thickness direction. The span portion is inserted into the through hole so as to span from one end to the other end of the through hole, and the abutment portion is adhered to one of the wall surfaces, thereby placing the frame constituent material in the fire compartment wall.

A frame body is installed inside the through hole by arranging multiple frame components around the entire circumference of the through hole. Then, multiple fireproof materials are filled as filler into the gap between the wiring/piping material that passes through the through hole and the frame body, forming a filler installation structure in the through hole.

Patent No. 4964679

However, in a filler installation structure for a through hole, there are cases where it is not necessary to fill the through hole with filler from one end to the other end in the through hole's penetration direction. In such cases, in the filler installation structure using the frame component material of Patent Document 1, it is not possible to know to what extent the filler has been filled from one end of the through hole. As a result, the filler is filled from one end to the other end of the through hole, which results in waste of filler when it is not necessary to fill the through hole with filler from one end to the other end in the through hole's penetration direction.

The filler installation structure for a through hole to solve the above problems is a filler installation structure for a through hole that penetrates a fire compartment body in the thickness direction and is formed by passing wiring/piping material through a polygonal through hole when viewed in the thickness direction, and filling the through hole with a filler, and includes an insertion member installed in the fire compartment body, and the insertion member has a bent portion formed by bending a metal plate material having a constant width that continues in the extension direction at a right angle halfway in the extension direction, and an insertion plate portion and a contact plate portion that extend in directions away from each other based on the bent portion, and the insertion plate portion is inserted into the through hole, and the outer surface of the insertion plate portion faces the hole defining surface that defines the through hole, and the outer surface of the contact plate portion is in contact with the outer surface of the fire compartment body, and the insertion plate portion extends toward the bent portion in the extension direction. The through hole has a base end and a tip end opposite the base end in the extension direction, and one or more of the insertion members are arranged on each side that defines the through hole when viewed in the thickness direction, so that a frame that surrounds the wiring/piping material is formed within the through hole, and at least one of the insertion members that forms the frame has a protruding plate portion integral with the insertion plate portion, and the protruding plate portion rises from the inner surface of the insertion plate portion by cutting and raising the insertion plate portion so as to protrude into the through hole between the base end and the tip of the insertion plate portion, and the filler is filled between the outer surface of the wiring/piping material in the through hole and the inner surface of the insertion plate portion, closer to the base end side or the tip side of the insertion plate portion than the protruding plate portion, and the filler is in contact with the protruding plate portion.

Regarding the filler installation structure for the through hole, the insertion member has an opening formed in the insertion plate portion by cutting and raising the protruding plate portion from the insertion plate portion, and the opening is positioned on the side filled with the filler material with respect to the protruding plate portion, and the opening may be blocked by the filler material.

The insertion member for solving the above problem is an insertion member installed in a fire compartment body in multiples, which forms a frame in a through hole penetrating the fire compartment body in the thickness direction, and has a bent portion formed by bending a metal plate material having a constant width continuing in the extension direction at a right angle midway in the extension direction, an insertion plate portion and a contact plate portion which extend in directions away from each other based on the bent portion, and a protruding plate portion integral with the insertion plate portion, and the insertion plate portion is inserted into the through hole, and the outer surface of the insertion plate portion forms a hole defining surface which defines the through hole. The contact plate portion faces the outer surface of the fire compartment body, the insertion plate portion has a base end closer to the bent portion in the extension direction and a tip end opposite the base end in the extension direction, and the protruding plate portion can take a lying position in which it extends in the extension direction along the insertion plate portion between the base end and the tip end of the insertion plate portion, and an upright position in which it protrudes in the opposite direction to the contact plate portion using the insertion plate portion as a reference and stands up from the inner surface of the insertion plate portion, and can be plastically deformed from either position to the other position.

With respect to the insertion member, a tip side of the protruding plate portion in the laid-down position may face a base end side of the insertion plate portion.
Regarding the insertion member, the protruding plate portion has a base end near the connection portion between the protruding plate portion and the insertion plate portion, and a tip end opposite the base end of the protruding plate portion, and the protruding plate portion may have a weak portion between the base end and the tip of the protruding plate portion for bending the protruding plate portion in order to adjust the length of the protruding plate portion in the upright position.

Regarding the insertion member, the insertion member may have an expansion member that is attached to the protruding plate portion in the upright position and expands the protruding plate portion.

This invention makes it possible to reduce waste of filler material.

FIG. FIG. FIG. FIG. FIG. FIG. FIG. FIG. FIG. FIG. 13 is a diagram showing another example of a filler installation structure.

Hereinafter, one embodiment of a filler installation structure for a through hole and an insertion member will be described with reference to Figs.
<Fire Compartment>
As shown in Fig. 1 and Fig. 2, the fire compartment wall W as a fire compartment body is formed of a first wall material W1, a second wall material W2, and a column material (not shown) that supports the first wall material W1 and the second wall material W2. The fire compartment wall W stands on a horizontal plane, and the direction of gravity is indicated by the Z axis, and the directions along the horizontal plane are indicated by the X axis and the Y axis. The X axis, the Y axis, and the Z axis are perpendicular to each other. In the following description, the direction parallel to the Z axis is also referred to as the gravity direction Z, and the direction parallel to the X axis is also referred to as the horizontal direction X. The direction parallel to the Y axis is also referred to as the depth direction Y. Therefore, the depth direction Y is a direction perpendicular to both the horizontal direction X and the gravity direction Z. The depth direction Y of the fire compartment wall W coincides with the thickness direction of the fire compartment wall W.

The fire compartment wall W has a hollow portion S defined between the first wall material W1 and the second wall material W2. A through hole 11 is formed in the fire compartment wall W. The through hole 11 penetrates the fire compartment wall W in the thickness direction. The through hole 11 is a hole that connects the first wall hole W1a formed in the first wall material W1, the second wall hole W2a formed in the second wall material W2, and the hollow portion S in the depth direction Y. When the fire compartment wall W is viewed from the outside in the depth direction Y, the first wall hole W1a and the second wall hole W2a are horizontally elongated rectangular shapes, which are an example of a polygonal shape. The first wall hole W1a is defined inside the first hole definition surface W1b formed in the first wall material W1. The second wall hole W2a is defined inside the second hole definition surface W2b formed in the second wall material W2.

Through hole 11 connects a first wall surface Wa formed by the outer surface of one wall material W1 with a second wall surface Wb formed by the outer surface of the other wall material W2. When the fire compartment wall W is viewed from the outside in the depth direction Y, through hole 11 is a horizontally elongated rectangular hole. The dimension of through hole 11 in the gravity direction Z is the first dimension L1, and the dimension of through hole 11 in the horizontal direction X is the second dimension L2. The dimension of through hole 11 in the depth direction Y is the third dimension L3.

<Outline of filling material installation structure>
A plurality of insert members 20 are installed in the fire compartment wall W. When the through hole 11 is viewed in the thickness direction of the fire compartment wall W, an insert member 20 is arranged on each of the four sides that define the through hole 11. The plurality of insert members 20 form a frame body 19 in the through hole 11, and the frame body 19 is installed in the fire compartment wall W. A wiring/piping material 12 passes through the through hole 11. The filler installation structure of the through hole 11 is formed by filling a plurality of fillers 14 between the inner surface of the frame body 19 and the outer surface of the wiring/piping material 12 in the through hole 11. Thus, the filler installation structure of the through hole 11 includes the insert member 20 installed in the fire compartment wall W and the filler 14.

<Filling material>
The filler 14 is formed by housing a rectangular parallelepiped block body in its entirety in a square box-shaped exterior member made of a thermally expandable heat-resistant material. The block body forming the filler 14 is formed in a rectangular parallelepiped shape from a non-flammable material such as ceramic wool or rock wool. The block body of the filler 14 itself has cushioning properties and therefore has the required elasticity. The exterior member of the filler 14 is formed from a flame-retardant thermally expandable heat-resistant material. When this thermally expandable heat-resistant material is subjected to heat of 120°C or higher, its volume expands to more than three times its volume before heating.

The filler 14 has an upper surface 14a at one end surface in the direction of gravity Z and a lower surface 14b at the other end surface in the direction of gravity Z. The filler 14 has a left surface 14c at one end surface in the horizontal direction X and a right surface 14d at the other end surface in the horizontal direction X. The filler 14 has a front surface 14e at one end surface in the depth direction Y and a rear surface 14f at the other end surface in the depth direction Y. Each of the multiple fillers 14 is installed so that the front surface 14e is flush with the first wall surface Wa. Therefore, each of the multiple fillers 14 is installed so that the front surface 14e is exposed on the first wall surface Wa side of the fire compartment wall W.

The dimension of the filler 14 in the gravity direction Z is smaller than the first dimension L1 of the through hole 11. The dimension of the filler 14 in the horizontal direction X is smaller than the second dimension L2 of the through hole 11. The dimension of the filler 14 in the depth direction Y is smaller than the third dimension L3 of the through hole 11. The dimension of the filler 14 in the depth direction Y is set to a dimension required for fire resistance according to the third dimension L3 of the through hole 11.

<Insertion member>
3 and 4, the insertion member 20 has a bent portion 21, an insertion plate portion 31, a contact plate portion 41, and three protruding plate portions 51. The insertion member 20 is formed by shaping a rectangular metal plate material 22. The metal plate material 22 before shaping has a rectangular shape with a constant width H continuing in one direction. The one direction in which the width H continues is the extension direction F of the insertion member 20. The insertion member 20 is formed by bending the metal plate material 22, whose width H continues in the extension direction F, midway in the extension direction F. The width H of the insertion member 20 is the same as or slightly smaller than the first dimension L1.

The bent portion 21 is formed by bending the metal plate material 22 before shaping at a right angle midway in the extension direction F. The bent portion 21 is the location where the insertion plate portion 31 and the contact plate portion 41 intersect. Therefore, it can be said that the insertion plate portion 31 and the contact plate portion 41 are formed by forming the bent portion 21 in the metal plate material 22. The insertion plate portion 31 extends from the bent portion 21 in the extension direction F, and the contact plate portion 41 extends in the opposite direction to the insertion plate portion 31 with the bent portion 21 as a reference. Therefore, the insertion member 20 has the bent portion 21, the insertion plate portion 31 and the contact plate portion 41 that extend in a direction away from each other with the bent portion 21 as a reference, and the protruding plate portion 51 that is integral with the insertion plate portion 31.

If a direction along the surface of the insertion member 20 and perpendicular to the extending direction F is defined as a width direction K of the insertion member 20 , the bent portion 21 is provided across the entire width direction K of the insertion member 20 .
When the insertion plate portion 31 is viewed from the outside in the thickness direction, the insertion plate portion 31 has a rectangular shape. When the insertion plate portion 31 is viewed from the outside in the thickness direction, the long sides of the insertion plate portion 31 extend in the extension direction F. When the insertion plate portion 31 is viewed from the outside in the thickness direction, the short sides of the insertion plate portion 31 extend in the width direction K. The insertion plate portion 31 has an outer surface 32 on one side in the thickness direction and an inner surface 33 on the other side in the thickness direction.

The insertion plate portion 31 has a base end 31a near the bent portion 21 in the extension direction F, and a tip end 31b opposite the base end 31a in the extension direction F. The base end 31a of the insertion plate portion 31 is the point where the insertion plate portion 31 and the bent portion 21 intersect. The dimension from the base end 31a to the tip end 31b in the extension direction F is the dimension of the insertion plate portion 31 in the extension direction F. The dimension of the insertion plate portion 31 in the extension direction F is the same or approximately the same as the third dimension L3 of the fire compartment wall W. Therefore, the insertion plate portion 31 can be hung across the fire compartment wall W along the depth direction Y. In the filler installation structure of the through hole 11, the outer surface 32 of the insertion plate portion 31 faces the first hole definition surface W1b and the second hole definition surface W2b.

The insertion plate section 31 has three slits 34. Of the three slits 34, the central slit 34 is located in the center of the width direction K of the insertion plate section 31. Of the three slits 34, the two slits 34 on either side of the central slit 34 are located the same distance from each edge of the width direction K of the insertion plate section 31. Therefore, the three slits 34 are located without any bias in the width direction K of the insertion plate section 31.

The three slits 34 are arranged side by side in the width direction K. Each slit 34 penetrates the insertion plate portion 31 in the thickness direction. When the insertion plate portion 31 is viewed from the outside in the thickness direction, each slit 34 is approximately rectangular. Each slit 34 has two first slit forming portions 34a extending linearly in the extension direction F, a second slit forming portion 34b connecting one end of the two first slit forming portions 34a, and a third slit forming portion 34c extending in the width direction K from the other end of each first slit forming portion 34a.

The second slit forming portions 34b of the three slits 34 are aligned in a row in the width direction K. In addition, the third slit forming portions 34c of the three slits 34 are aligned in a row in the width direction K. Therefore, the three slits 34 are positioned in the same position in the extension direction F of the insertion plate portion 31.

The two third slit forming portions 34c are spaced apart in the width direction K, sandwiching a connection portion 54 described below. When the center of the insertion plate portion 31 in the extension direction F is used as a reference, the third slit forming portion 34c of each slit 34 is located closer to the tip end 31b than to the base end 31a of the insertion plate portion 31.

When the contact plate portion 41 is viewed from the outside in the thickness direction, the contact plate portion 41 has a rectangular shape. When the contact plate portion 41 is viewed from the outside in the thickness direction, the long sides of the contact plate portion 41 extend in the width direction K. Also, when the contact plate portion 41 is viewed from the outside in the thickness direction, the short sides of the contact plate portion 41 extend in the extension direction F. The contact plate portion 41 has a first surface 42 on one side in the thickness direction and a second surface 43 on the other side in the thickness direction. The outer surface 32 of the insertion plate portion 31 and the first surface 42 of the contact plate portion 41 are continuous and perpendicular to each other. Similarly, the inner surface 33 of the insertion plate portion 31 and the second surface 43 of the contact plate portion 41 are continuous and perpendicular to each other. In the filler installation structure of the through hole 11, the first surface 42 as the outer surface of the contact plate portion 41 contacts the first wall surface Wa.

Each of the three protruding plate portions 51 is formed inside the slit 34. Of the three protruding plate portions 51, the central protruding plate portion 51 is disposed in the center of the width direction K of the insertion plate portion 31. Of the three protruding plate portions 51, the two protruding plate portions 51 that sandwich the central protruding plate portion 51 are disposed at the same distance from each edge of the width direction K of the insertion plate portion 31. Therefore, the three protruding plate portions 51 are disposed without any bias in the width direction K of the insertion plate portion 31.

Since the three protruding plate portions 51 have the same configuration, one of the protruding plate portions 51 will be described in detail, and detailed descriptions of the remaining two protruding plate portions 51 will be omitted.
The insertion member 20 has a connection portion 54 that connects the protruding plate portion 51 and the insertion plate portion 31. The insertion plate portion 31 and the protruding plate portion 51 are integrally connected by this connection portion 54. Note that, since the third slit forming portions 34c of the three slits 34 are aligned in a row in the width direction K, the three connection portions 54 are also aligned in a row in the width direction K. In other words, the three connection portions 54 are in the same position in the extension direction F of the insertion plate portion 31.

The connection portion 54 is a portion of the metal plate 22 that is sandwiched between the two third slit forming portions 34c. When the protruding plate portion 51 is viewed from the outside in the thickness direction, the protruding plate portion 51 has a rectangular shape. The protruding plate portion 51 has a base end 51a that is closer to the connection portion 54, and a tip end 51b that is opposite the base end 51a of the protruding plate portion 51. When the center of the longitudinal direction of the protruding plate portion 51 is used as a reference, the base end 51a is located closer to the connection portion 54 than the tip end 51b.

The protruding plate portion 51 has a first contact surface 52 on one side in the thickness direction, and a second contact surface 53 on the other side in the thickness direction. The thickness of the protruding plate portion 51 is the same as the thickness of the insertion plate portion 31.
The protruding plate portion 51 is capable of plastic deformation from either the lying down position S1 or the standing position S2 to the other position. That is, the protruding plate portion 51 is capable of plastic deformation from the lying down position S1 to the standing position S2, and is also capable of plastic deformation from the standing position S2 to the lying down position S1.

The lying down position S1 is a position in which the protruding plate portion 51 extends in the extension direction F along the insertion plate portion 31 between the base end 31a and the tip end 31b of the insertion plate portion 31. The lying down position S1 is a position in which the outer surface 32 of the insertion plate portion 31 and the first contact surface 52 of the protruding plate portion 51 are located on the same plane, and the inner surface 33 of the insertion plate portion 31 and the second contact surface 53 of the protruding plate portion 51 are located on the same plane. The lying down position S1 is a position in which the protruding plate portion 51 is located inside the slit 34. In the lying down position S1, the tip end 51b side of the protruding plate portion 51 faces the base end 31a side of the insertion plate portion 31. In other words, in the lying down position S1, the tip end 51b of the protruding plate portion 51 is closer to the bent portion 21 than the base end 51a of the protruding plate portion 51.

As shown in FIG. 2, the standing posture S2 is a posture in which the first contact surface 52 and the second contact surface 53 of the protruding plate portion 51 are perpendicular to the inner surface 33 of the insertion plate portion 31. The standing posture S2 is a posture in which the protruding plate portion 51 protrudes outside the slit 34. The protruding plate portion 51 in the standing posture S2 stands by cutting and raising the insertion plate portion 31 between the base end 31a and the tip end 31b of the insertion plate portion 31. Also, in the standing posture S2, the protruding plate portion 51 stands from the inner surface 33 of the insertion plate portion 31, protruding in the opposite direction to the contact plate portion 41 with respect to the insertion plate portion 31 as a reference.

When the protruding plate portion 51 is displaced to the upright position S2, an opening 36 is formed in the insertion plate portion 31. When the insertion plate portion 31 is viewed from the outside in the thickness direction, the opening 36 has a rectangular shape. When the insertion plate portion 31 is viewed from the outside in the thickness direction, the long sides of the opening 36 extend in the extension direction F, and the short sides of the opening 36 extend in the width direction K.

The shortest dimension from the base end 31a of the insertion plate portion 31 to the connection portion 54 is the specified dimension M. This specified dimension M is the same as the dimension of the filler 14 to be filled in the depth direction Y of the through hole 11 in the filler installation structure. The specified dimension M is also the same as the dimension of the filler 14 in the depth direction Y. Therefore, by aligning the front surface 14e of the filler 14 with the base end 31a of the insertion plate portion 31 and contacting the rear surface 14f of the filler 14 with the first contact surface 52 of the protruding plate portion 51, the dimension of the filler 14 required in the filler installation structure can be ensured.

3 and 4, the protruding plate portion 51 has a first hole 55a, a second hole 55b, and a third hole 55c. The first hole 55a, the second hole 55b, and the third hole 55c penetrate the protruding plate portion 51 in the thickness direction. The first hole 55a, the second hole 55b, and the third hole 55c are arranged in this order from the base end 51a to the tip end 51b of the protruding plate portion 51. The opening width of the first hole 55a in the short side direction of the protruding plate portion 51 is smaller than the opening width of the second hole 55b in the short side direction of the protruding plate portion 51. The opening width of the second hole 55b in the short side direction of the protruding plate portion 51 is smaller than the opening width of the third hole 55c in the short side direction of the protruding plate portion 51. Therefore, among the first hole 55a, the second hole 55b, and the third hole 55c, the opening width of the first hole 55a is the smallest, and the opening width of the third hole 55c is the largest.

The protruding plate portion 51 has a first weak portion 56a, a second weak portion 56b, and a third weak portion 56c. The first weak portion 56a is a portion that sandwiches the first hole 55a in the short side direction of the protruding plate portion 51. The second weak portion 56b is a portion that sandwiches the second hole 55b in the short side direction of the protruding plate portion 51. The third weak portion 56c is a portion that sandwiches the third hole 55c in the short side direction of the protruding plate portion 51.

The protruding plate portion 51 has a constant width in the long side direction. Therefore, the dimension of the first weak portion 56a in the short side direction of the protruding plate portion 51 is larger than the dimension of the second weak portion 56b in the short side direction of the protruding plate portion 51. The dimension of the second weak portion 56b in the short side direction of the protruding plate portion 51 is larger than the dimension of the third weak portion 56c in the short side direction of the protruding plate portion 51. Therefore, among the first weak portion 56a, the second weak portion 56b, and the third weak portion 56c, the dimension of the first weak portion 56a is the largest and the dimension of the third weak portion 56c is the smallest.

The first to third weak portions 56a to 56c are portions where the dimension in the short side direction of the protruding plate portion 51 is smaller than other portions of the protruding plate portion 51. Therefore, the first to third weak portions 56a to 56c are weaker than other portions of the protruding plate portion 51. This makes the protruding plate portion 51 easier to bend from the first to third weak portions 56a to 56c. Therefore, the protruding plate portion 51 has the first to third weak portions 56a to 56c to adjust the length of the protruding plate portion 51 in the upright position S2.

<Details of filling material installation structure>
As shown in Fig. 1, a plurality of insert members 20 are installed in the fire compartment wall W. In this embodiment, a plurality of insert members 20 are installed in a row in the horizontal direction X on both the upper and lower sides in the gravity direction Z. Also, one insert member 20 is installed on each of the left and right ends of the horizontal direction X. Each of all the insert members 20 is installed in the fire compartment wall W such that the first surface 42 as the outer surface of the contact plate portion 41 contacts the first wall surface Wa via a double-sided adhesive tape. Then, a frame body 19 is formed in the through hole 11 by the insert plate portions 31 of the plurality of insert members 20 installed in the fire compartment wall W, and the frame body 19 is installed in the fire compartment wall W.

As shown in Figures 1 and 5, the insertion plate portion 31 of each of the multiple insertion members 20 is inserted into the through hole 11. In detail, each of the multiple insertion members 20 is inserted from the first wall hole W1a toward the second wall hole W2a. The entire insertion plate portion 31 of each of the multiple insertion members 20 is inserted into the through hole 11.

The outer surfaces 32 of the multiple insertion plate sections 31 each face the first hole definition surface W1b and the second hole definition surface W2b. The inner surfaces 33 of the multiple insertion plate sections 31 each face the inside of the through hole 11. The base ends 31a of the multiple insertion plate sections 31 each are arranged along the first wall surface Wa. The tip ends 31b of the multiple insertion plate sections 31 each are arranged along the second wall surface Wb. Therefore, the insertion plate sections 31 are spanned across the entire depth direction Y of the fire compartment wall W.

The first surface 42 of each of the contact plate portions 41 of the multiple insertion members 20 is attached to the first wall surface Wa of the fire compartment wall W by double-sided adhesive tape (not shown). The movement of each insertion member 20 is restricted by the double-sided adhesive tape. When installing the filler installation structure in the fire compartment wall W, the double-sided adhesive tape temporarily secures the insertion member 20 to the fire compartment wall W.

As shown in Figures 6 and 7, the insertion members 20 arranged in the horizontal direction X have portions of their insertion plate sections 31 overlapping in the direction of gravity Z. The insertion plate section 31 of the insertion member 20 installed at the center of the horizontal direction X overlaps with the insertion plate section 31 of the insertion member 20 installed at the left end side of the horizontal direction X and the insertion plate section 31 of the insertion member 20 installed at the right end side of the horizontal direction X. The insertion plate section 31 installed at the center of the horizontal direction X overlaps with the protruding plate section 51 in the lying position S1 relative to the insertion plate sections 31 on both ends of the horizontal direction X.

Each of the insertion plate parts 31 installed at both ends in the horizontal direction X has a protruding plate part 51 in an upright position S2. In the insertion plate part 31 installed at the left end in the horizontal direction X, the protruding plate part 51 closest to the left end of the through hole 11 in the horizontal direction X of the three protruding plate parts 51 is in an upright position S2. In the insertion plate part 31 installed at the right end in the horizontal direction X, the protruding plate part 51 closest to the right end of the through hole 11 in the horizontal direction X of the three protruding plate parts 51 is in an upright position S2. In the insertion plate part 31 installed at the center in the horizontal direction X, all three protruding plate parts 51 are in an upright position S2. Therefore, the protruding plate part 51 in the upright position S2 is raised from the inner surface 33 of the insertion plate part 31 by cutting and raising the insertion plate part 31 so as to protrude toward the through hole 11 between the base end 31a and the tip end 31b of the insertion plate part 31. Therefore, when in the upright position S2, the protruding plate portion 51 protrudes toward the inside of the frame body 19.

In the insertion plate portion 31 installed at the center in the horizontal direction X, of the three protruding plate portions 51, the protruding plate portion 51 closest to the right end in the horizontal direction X is bent from the third weak portion 56c. Of the three protruding plate portions 51, the protruding plate portion 51 closest to the left end in the horizontal direction X is bent from the second weak portion 56b. Of the three protruding plate portions 51, the protruding plate portion 51 located at the center in the horizontal direction X is bent from the first weak portion 56a and the second weak portion 56b. Therefore, the three protruding plate portions 51 have different dimensions in the direction of gravity Z. When adjusting the dimension of the protruding plate portion 51 in the standing posture S2 in the direction of gravity Z, the first to third weak portions 56a to 56c may be cut instead of being bent.

In the three protruding plate portions 51, the directions in which the protruding plate portions 51 are bent by the first to third fragile portions 56a to 56c are all toward the tip end 31b of the insertion plate portion 31.
Each of the insertion members 20 installed on the left and right in the horizontal direction X is installed so that the width direction K of the insertion plate portion 31 extends in the gravity direction Z. In each of the insertion members 20 installed on the left and right in the horizontal direction X, all of the protruding plate portions 51 remain in the laid-down position S1.

The frame body 19 is formed into a square frame shape by the insertion plate portions 31 of all the insertion members 20. The frame body 19 reinforces the periphery of the through hole 11. The frame body 19 also covers a part of the hollow portion S. A number of protruding plate portions 51 protrude from the frame body 19 into the through hole 11.

As shown in Figs. 1 and 5, the inside of the frame body 19 is filled with a plurality of fillers 14. Each of the plurality of fillers 14 is filled inside the frame body 19 in a state where it is compressed in the thickness direction of the filler 14. Each filler 14 is filled inside the frame body 19 from the first wall surface Wa side. In other words, each filler 14 is filled inside the frame body 19 from the contact plate portion 41 side of each insertion member 20. In this embodiment, each filler 14 is filled between the outer surface of the wiring/piping material 12 and the inner surface 33 of the insertion plate portion 31, and is filled on the base end 31a side of the insertion plate portion 31 rather than the protruding plate portion 51.

When the fire compartment wall W is viewed from the first wall surface Wa side, the long side of the filler 14 extends in the horizontal direction X, and the short side of the filler 14 extends in the direction of gravity Z. Multiple filler materials 14 are filled in the horizontal direction X, and multiple filler materials 14 are filled in the direction of gravity Z. Inside the frame 19, in places where the gap is too narrow to fill with the filler 14 as is, the filler 14 is cut to the required size and filled, or fireproof putty 15 is filled.

The dimension of the filler 14 in the depth direction Y is smaller than the third dimension L3 of the through hole 11. In addition, the dimension of the filler 14 in the depth direction Y is the same as the dimension from the base end 31a of the insertion plate portion 31 to the connection portion 54.

As shown in Figures 8 and 9, the rear surface 14f of the filler 14 filled inside the frame body 19 is in contact with the first contact surface 52 of the protruding plate portion 51 in the upright position S2. The front surface 14e of the filler 14 is arranged along the base end 31a of the insertion plate portion 31. The base end 31a of the insertion plate portion 31 is arranged along the first wall surface Wa. Therefore, the front surface 14e of the filler 14 is arranged along the first wall surface Wa of the fire compartment wall W.

As shown in Figures 1 and 5, the contact of the filler 14 with the protruding plate portion 51 restricts the filler 14 from moving further back than the protruding plate portion 51. In the filler installation structure, a plurality of fillers 14 are filled between the inner surface 33 of the insertion plate portion 31 at the through hole 11 and the outer surface of the wiring/piping material 12, and on the base end 31a side of the insertion plate portion 31 than the protruding plate portion 51 in the standing position S2.

As described above, the specified dimension M, which is the shortest dimension from the base end 31a of the insertion plate portion 31 to the connection portion 54, is the same as the dimension of the filler 14 to be filled from the first wall surface Wa to the depth direction Y in the filler installation structure. The base end 31a of the insertion plate portion 31 is located along the first wall surface Wa. Therefore, the position of the connection portion 54 located in the through hole 11, that is, the position of the protruding plate portion 51 in the upright position S2, is the position where the rear surface 14f of the filler 14 should be located. Therefore, the contact of the rear surface 14f of the filler 14 with the protruding plate portion 51 keeps the filler 14 at a determined position in the depth direction Y within the through hole 11.

As shown in FIG. 9, by setting the protruding plate portion 51 in the standing position S2, an opening 36 is formed in the insertion plate portion 31. This opening 36 is positioned on the side filled with the filler material 14, based on the protruding plate portion 51 in the standing position S2. Therefore, the opening 36 is blocked by the filler material 14.

According to this embodiment, the following advantageous effects can be obtained.
(1) In the filler installation structure, a plurality of fillers 14 are filled on the side of the base end 31a of the insertion plate portion 31 from the protruding plate portion 51 in the standing posture S2. The plurality of fillers 14 are in contact with the protruding plate portion 51. Therefore, when the filler 14 is inserted into the through hole 11, the filler 14 comes into contact with the protruding plate portion 51, and the filler 14 can be prevented from entering the depth direction Y beyond a predetermined position in the through hole 11. In other words, the filler 14 can be kept at a predetermined position in the depth direction Y in the through hole 11. Therefore, it is possible to grasp whether the filler 14 has been filled up to a predetermined position in the depth direction Y in the through hole 11. As a result, it is possible to prevent the filler 14 from being filled from one end to the other end of the depth direction Y of the through hole 11, thereby suppressing waste of the filler 14.

(2) In the filler installation structure, among the multiple insertion plate sections 31 that form the frame body 19, the protruding plate section 51 protrudes from the insertion plate sections 31 that are aligned in the horizontal direction X. In addition, in the filler installation structure, multiple filler materials 14 are filled inside the frame body 19. Each of the multiple filler materials 14 is in contact with the protruding plate section 51 in the upright position S2. Therefore, it is possible to know whether the filler material 14 has been filled up to a predetermined position in the depth direction Y for all of the filler materials 14.

(3) When the protruding plate portion 51 is in the upright position S2, an opening 36 is formed in the insertion plate portion 31. The filling material 14 is filled from the base end 31a side of the insertion plate portion 31. The connection portion 54 of the protruding plate portion 51 is located closer to the tip 31b than to the base end 31a of the insertion plate portion 31. Therefore, even if the protruding plate portion 51 is raised from the connection portion 54 to form the opening 36, the opening 36 is formed on the side filled with the filling material 14 across the protruding plate portion 51. As a result, the opening 36 can be blocked by the filling material 14, and the leakage of flames and smoke from the opening 36 can be suppressed.

(4) The protruding plate portion 51 is plastically deformable so that it can be displaced between a lying-down position S1 and an upright position S2. Therefore, when the insertion plate portions 31 of multiple insertion members 20 are stacked on top of each other in the direction of gravity Z, interference between the insertion plate portions 31 when stacking them on top of each other can be avoided by placing the protruding plate portion 51 in the lying-down position S1. In other words, unlike insertion members 20 whose protruding plate portions 51 can only take the upright position S2, the insertion members 20 can be installed by stacking them on top of each other.

(5) The protruding plate portion 51 is plastically deformable so that it can be displaced between the lying-down position S1 and the standing position S2. By selecting the protruding plate portion 51 to be placed in the lying-down position S1, the amount by which the inserting plate portions 31 overlap each other when they are placed on top of each other can be adjusted. Therefore, even if the inserting member 20 has multiple protruding plate portions 51, it can be placed according to the dimensions of the through hole 11.

(6) In the laid-down position S1, the tip 51b of the protruding plate portion 51 faces the base end 31a of the insertion plate portion 31. Therefore, when the protruding plate portion 51 is placed in the upright position S2, the protruding plate portion 51 is positioned at the back in the filling direction of the filler 14. As a result, when the filler 14 is filled from the contact plate portion 41 side, the filler 14 can be brought into contact with the protruding plate portion 51 at the back in the filling direction. Therefore, the protruding plate portion 51 in the upright position S2 can restrict further movement of the filler 14 and can also close the opening 36 formed by raising the protruding plate portion 51.

(7) The first to third fragile portions 56a to 56c make it easy to bend the protruding plate portion 51, which makes it easy to adjust the length of the protruding plate portion 51. This makes it easy to adjust the length of the protruding plate portion 51 so that the wiring/piping material 12 that passes through the through hole 11 does not interfere with the protruding plate portion 51.

(8) The insertion member 20 has three protruding plate portions 51. Therefore, the protruding plate portion 51 that is preferable for contacting the filler 14 can be selected from the three. Therefore, the movement of the filler 14 can be appropriately restricted by the protruding plate portion 51.

This embodiment can be modified as follows: This embodiment and the following modifications can be combined with each other to the extent that there is no technical contradiction.
10, a plurality of insertion members 20 may be arranged in the direction of gravity Z. In this case, the insertion members 20 arranged in the direction of gravity Z are arranged such that the insertion plate portions 31 partially overlap each other in the horizontal direction X. Furthermore, the protruding plate portions 51 of each of the insertion members 20 arranged in the direction of gravity Z are in the upright position S2.

In each of the multiple insertion members 20 arranged in the horizontal direction X, the protruding plate portion 51 at the center of the width direction K of the insertion plate portion 31 is in an upright position S2. In this way, all of the filler material 14 is in contact with the protruding plate portion 51.

In addition, among the insertion members 20 lined up in the gravity direction Z, the protruding plate portion 51 of one of the insertion members 20 may be in the upright position S2.
In short, as long as it is possible to come into contact with the filler 14 and restrict the movement of the filler 14, the protruding plate portion 51 that is brought into the standing posture S2 may be changed as appropriate.

○ In the standing posture S2, the first contact surface 52 and the second contact surface 53 are perpendicular to the inner surface 33, but in the standing posture S2, the first contact surface 52 and the second contact surface 53 may not be perpendicular to the inner surface 33 and may be inclined.

When the protruding plate portion 51 is in the upright position S2, it may be cut and raised from the first to third weak portions 56a to 56c. In this case, the cut and raised weak portions become the connection portions between the insertion plate portion 31 and the protruding plate portion 51.

As shown by the two-dot chain line in FIG. 10, the insert member 20 may have an expansion member 60 attached to the protruding plate portion 51 in the standing position S2. The expansion member 60 expands the contact surface of the protruding plate portion 51 with the filler material 14.

The dimension from the base end 31a to the tip 31b of the insertion plate portion 31 may be shorter than the third dimension L3 of the through hole 11. Or, the dimension from the base end 31a to the tip 31b of the insertion plate portion 31 may be longer than the third dimension L3 of the through hole 11. In this case, the tip 31b of the insertion plate portion 31 may protrude from the second wall surface Wb.

The filler 14 may be filled from the tip 31b side of the insertion plate portion 31 into the inside of the frame body 19. In this case, the dimension of the filler 14 in the depth direction Y is set to the dimension from the tip 31b of the insertion plate portion 31 to the connection portion 54. When configured in this manner, the rear surface 14f of the filler 14 contacts the second contact surface 53 of the protruding plate portion 51.

The filler 14 may be filled into the inside of the frame body 19 from both sides of the base end 31a and the tip end 31b of the insertion plate portion 31 so as to sandwich the protruding plate portion 51 in the upright position S2 from both sides in the depth direction Y.

○ The positions of the multiple slits 34 in the extension direction F of the insertion plate portion 31 may be made different. In other words, the positions of the multiple connection portions 54 may be made different in the extension direction F of the insertion plate portion 31. In this case, the length of the protruding plate portion 51 in the extension direction F may be made different.

The shape of the slits 34 formed in the insertion plate portion 31 may be changed.
The insertion directions of the insertion plate portions 31 into the through holes 11 of the insertion members 20 adjacent to each other in the horizontal direction X may be different.

○ With respect to the multiple protruding plate portions 51 arranged in the width direction K, the protruding plate portions 51 may be arranged side by side with the base end 51a of the protruding plate portion 51 located closer to the base end 31a of the insertion plate portion 31 and the protruding plate portions 51 with the base end 51a of the protruding plate portion 51 located closer to the tip end 31b of the insertion plate portion 31.

The three protruding plate portions 51 may be arranged biased toward either one end of the insertion plate portion 31 in the width direction K.
The insertion plate 31 may have one or two protruding plate portions 51 .

The insertion plate 31 may have four or more protruding plate portions 51 .
The direction in which the protruding plate portion 51 is bent by the first to third weak portions 56a to 56c may be toward the base end 31a of the insertion plate portion 31. Furthermore, among the three protruding plate portions 51 provided on one insertion plate portion 31, some of the protruding plate portions 51 are bent toward the base end 31a and some are bent toward the tip end 31b.

The bent protruding plate portion 51 may directly support the wiring/piping material 12 passing through the through hole 11 from below.
When viewed from the outside in the thickness direction, the through hole 11 may be hexagonal, pentagonal, or trapezoidal. One or more insertion members 20 may be provided on each side of the through hole 11.

The double-sided adhesive tape may be omitted. In this case, the first surface 42 of the contact plate portion 41 directly contacts the first wall surface Wa of the fire compartment wall W.
The size of the frame 19 may be changed by changing the number of insert members 20 installed in the fire compartment wall W depending on the size of the through hole 11 .

○ The fire compartment body may be a fire compartment floor or a fire compartment ceiling.

F...extension direction, S1...falling position, S2...standing position, W...fire compartment wall as fire compartment body, Wa...first wall surface as outer surface, W1b...first hole defining surface, W2b...second hole defining surface, 11...through hole, 12...wiring/piping material, 14...filler, 19...frame, 20...insertion member, 21...bent portion, 22...metal plate material, 31...insertion plate portion, 31a, 51a...base end, 31b, 51b...tip, 32...outer surface, 33...inner surface, 36...opening, 41...contact plate portion, 42...first surface as outer surface, 51...projecting plate portion, 54...connecting portion, 56a-56c...first-third weak portions, 60...extension member.

Claims (6)

A plurality of insert members are installed in a fire compartment, the insert members forming a frame in a through hole penetrating the fire compartment in a thickness direction,
The metal plate has a bent portion formed by bending a metal plate material having a constant width in an extension direction at a right angle midway in the extension direction, an insertion plate portion and a contact plate portion extending in directions away from each other based on the bent portion, and a protruding plate portion integrally connected to the insertion plate portion by a connection portion ,
The insertion plate portion is inserted into the through hole, and the outer surface of the insertion plate portion faces the hole defining surface which is the inner peripheral surface of the through hole, and the contact plate portion is in contact with the outer surface of the fire compartment body,
The insertion plate portion has a base end near the bent portion in the extension direction and a tip end opposite the base end in the extension direction,
The protruding plate portion can take a lying down position in which it extends in the extension direction along the insertion plate portion between the base end and the tip end of the insertion plate portion, and an upright position in which it protrudes in the opposite direction to the contact plate portion with respect to the insertion plate portion and stands up from the inner surface of the insertion plate portion, and can be plastically deformed from one of the positions to the other position ,
The insertion member is characterized in that the protruding plate portion is provided in plurality on the insertion plate portion . An insertion member as described in claim 1, wherein each of the multiple protruding plate portions has a base end closer to the connection portion and a tip end opposite the base end of the protruding plate portion, and the lengths from the base end to the tip end differ among the multiple protruding plate portions, or the positions of the multiple connection portions differ in the extension direction of the insertion plate portion. A plurality of insert members are installed in a fire compartment, the insert members forming a frame in a through hole penetrating the fire compartment in a thickness direction,
The metal plate has a bent portion formed by bending a metal plate having a constant width in an extension direction at a right angle midway in the extension direction, an insertion plate portion and a contact plate portion extending in directions away from each other based on the bent portion, and a protruding plate portion integral with the insertion plate portion,
The insertion plate portion is inserted into the through hole, and the outer surface of the insertion plate portion faces the hole defining surface which is the inner peripheral surface of the through hole, and the contact plate portion is in contact with the outer surface of the fire compartment body,
The insertion plate portion has a base end near the bent portion in the extension direction and a tip end opposite the base end in the extension direction,
The protruding plate portion can take a lying down position in which it extends in the extension direction along the insertion plate portion between the base end and the tip end of the insertion plate portion, and an upright position in which it protrudes in the opposite direction to the contact plate portion with respect to the insertion plate portion and stands up from the inner surface of the insertion plate portion, and can be plastically deformed from one of the positions to the other position ,
An insertion member characterized in that the protruding plate portion has a base end near the connection between the protruding plate portion and the insertion plate portion and a tip end opposite the base end of the protruding plate portion, and the protruding plate portion has a weak portion between the base end and the tip of the protruding plate portion for bending the protruding plate portion in order to adjust the length of the protruding plate portion in the upright position . The insertion member according to any one of claims 1 to 3, wherein a tip side of the protruding plate portion in the laid-down position faces a base end side of the insertion plate portion. The insertion member according to any one of claims 1 to 4 , further comprising an expansion member attached to the protruding plate portion in the upright position to expand the protruding plate portion. A filler installation structure for a through hole formed by penetrating a fire compartment body in a thickness direction, and having a polygonal through hole as viewed in the thickness direction, through which wiring/piping material passes, and filling material is filled into the through hole,
An insert member is provided in the fire compartment body,
The insertion member has a bent portion formed by bending a metal plate material having a constant width continuing in an extension direction at a right angle midway in the extension direction, and an insertion plate portion and a contact plate portion extending in directions away from each other based on the bent portion,
The insertion plate portion is inserted into the through hole, and an outer surface of the insertion plate portion faces a hole defining surface which is an inner peripheral surface of the through hole, and an outer surface of the contact plate portion contacts an outer surface of the fire compartment body,
The insertion plate portion has a base end near the bent portion in the extension direction and a tip end opposite the base end in the extension direction,
When the through hole is viewed in the thickness direction, one or more of the insertion members are disposed on each side that defines the through hole, so that a frame that surrounds the wiring/piping material is formed within the through hole,
At least one of the insertion members forming the frame body has a plurality of protruding plate portions integral with the insertion plate portion, and among the plurality of protruding plate portions , the protruding plate portions that interfere with the wiring/piping material or other insertion members are in a laid-down position extending in the extension direction along the insertion plate portion, and at least one of the remaining protruding plate portions among the plurality of protruding plate portions is in an upright position standing up from the inner surface of the insertion plate portion by cutting the insertion plate portion so as to protrude into the through hole between the base end and the tip end of the insertion plate portion,
A filler installation structure for a through hole, characterized in that the filler is filled between the outer surface of the wiring/piping material in the through hole and the inner surface of the insertion plate portion, and on the base end side or the tip end side of the insertion plate portion rather than the protruding plate portion, and the filler is in contact with the protruding plate portion in the upright position .