JP2003321887A - Hole blocking jig for fire compartment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hole blocking jig for a fire compartment, which is simple in structure, easy to assemble, low in production cost and mounting cost, and blocks a through hole having combustible long bodies inserted therein irrespective of the location of the long bodies in the through hole. <P>SOLUTION: The hole blocking jig is formed of a blocking base plate 2 and a covering plate 3. The blocking base plate 2 has a notch 2A formed therein, for sheathing the combustible long bodies C inserted into the through hole 1 of the fire compartment B, from the side. The covering plate 3 has an insertion hole 3A formed therein, for being superposed on the blocking base plate 2 to cover the notch 2A except for an insertion portion of the combustible long bodies C. Herein, the insertion hole 3A is formed at a location decentered from the covering plate 3, and the covering plate 3 has a mounting incision 3B formed therein, for connecting a specific portion at a peripheral edge of the covering plate 3 to the insertion hole 3A. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire blocking partition hole closing jig for forming a fire prevention structure in a through hole formed in a floor or the like for inserting a long body such as a cable.

[0002]

2. Description of the Related Art Conventionally, as a hole closing jig AA for this type of fire protection compartment, for example, there is one disclosed in Japanese Patent Laid-Open No. 8-28760, which is shown in FIG.
A heat-expandable heat-resistant filler 103A is filled along the circumferential direction of the inner peripheral surface of the through hole 102 through which the elongated body 101 such as a refrigerant pipe is inserted through a filler holding cylinder 104 in the form of an assembly frame. In addition, in correspondence with the elongated body 101 portion protruding from the through hole 102, the half-split frame 10 from the left-right direction.
By filling the refractory material 103B between the inner peripheral surface of the annular holding frame 105 formed by combining 5a and 105a and the outer peripheral surface of the elongated body 101, the elongated body 101 inserted through the through hole 1 of the floor B is inserted. A refractory structure for the part is formed. Then, in the unlikely event that, for example, a fire occurs under the floor B and the fire heating reaches the through hole, the filler holding cylinder 1
The heat-resistant filling material 103A of No. 04 thermally expands, and the window frame opening 10
The expanded heat-resistant filling material 103A is filled between the filling material holding cylinder frame 104 and the inner peripheral surface of the through hole 102 through 4a to close the gap between the filling material holding cylinder frame 104 and the through hole 102. The smoke is prevented from entering the floor B, and even if the long body 101 in the portion protruding from the through hole 102 is burned, the annular holding frame 105 and the long body 101 are separated from each other. The fireproof material 103B filled in between can prevent the spread of fire.

[0003]

However, in the hole-blocking jig AA for a fireproof partition having such a structure, the inside of the through-hole 102 and the portion projecting from the through-hole 102 have thermal expansion and heat resistance. Filler 103A and heat resistant filler 103B
Since it is a structure that supports, the structure is complicated, the number of parts is large, and it takes time to assemble.
In addition, there are problems such as shortening of work time related to construction.

The present invention has been made in view of the above situation, and its main problem is that the structure and assembly are simple,
For fire prevention partition that can reduce product cost and installation cost, and can close the through hole in the inserted state regardless of where the long body is inserted into the through hole. The point is to provide a hole closing jig.

[0005]

According to a first aspect of the present invention, there is provided a characteristic feature of a hole closing jig for a fireproof partition, which is a plate-like member which can be brought into contact with an outer surface of a peripheral edge of the throughhole of the firebreak partition and which has a through hole. A closed substrate having a cutout formed laterally over the inserted long body, and a region of the cutout of the closed substrate in a stacked state excluding a position where the long body is inserted can be closed. A blindfold plate having a size and formed in an eccentric portion of the insertion hole of the elongated body is provided, and the blindfold plate has a specific portion of the outer peripheral edge thereof. The point is that a mounting notch that communicates with the insertion hole is formed.

According to the above characteristic structure, the elongated body inserted through the through hole is housed so as to be enveloped by the notch of the closed substrate, and in this state, the closed substrate is mounted on the outer surface of the peripheral edge of the through hole in a mounted state. Next, the mounting notch is opened to accommodate the elongated body in the insertion hole, and in this state, the blind hole plate is laminated on the closing substrate to close the through hole, so that the through hole portion can be easily fire-prevented. Since it can be in a partitioned state, the structure of the fireproof partition structure itself is simple, and the mounting work can be easily performed.

Therefore, it is possible to reduce the product cost, the mounting cost, and the assembling time as compared with the conventional hole closing jig for the fireproof compartment. Moreover, when the blocking substrate is attached to the outer surface of the peripheral edge of the through hole, there is a notch extending from the axial center position of the through hole to the outer surface of the peripheral edge of the through hole, so that the elongated body is located at any insertion position of the through hole. Even
Corresponding to the fact that the blocking substrate can be attached to the outer surface of the peripheral edge of the through hole and the degree of eccentricity from the axial center position of the through hole,
Since the blindfold plate can be laminated on the closed substrate, the insertion position of the elongated body is from the axial center position of the through hole to the eccentric position, that is, where the elongated body is inserted into the through hole. Even in this case, the through hole can be closed at the inserted position.

Further, since both the closing substrate and the blindfold plate are plate-shaped, they can be transported in a bulky state at the production stage, the product distribution stage, the inventory stage and the construction stage. Transport management can be improved.

According to a second aspect of the present invention, there is provided a characteristic feature of a hole blocking jig for a fire protection partition, which is a long body portion protruding from a through hole of a long body, a space between an outer surface of the through hole and a closed substrate, and a closed substrate. The point is that a heat-resistant filling material is provided between the laminated layers of the and the blindfold plate.

According to the above characteristic structure, the heat-resistant filling material is filled in the elongated body portion which is inserted through the through hole, between the outer surface of the through hole and the closed substrate, and between the laminated layers of the closed substrate and the blind plate. Therefore, the closed state of the through hole is improved, and even if a fire spreads to the long body, it has a high sealing ability to reliably prevent the spread of fire, so heat insulation It is possible to form a through-hole closing jig that has good performance and smoke blocking performance and high fire blocking performance.

According to a third aspect of the present invention, there is provided a characteristic feature of a jig for closing a hole for a fireproof partition, wherein the contour of the closed substrate is formed in an arc shape having an outer diameter larger than an inner diameter of a through hole of the fireproof partition. Furthermore, the contour of the blindfold plate is formed in an oval shape or an elliptical shape or a shape similar to the oval shape along the longitudinal direction of the cutout portion of the closed substrate.

According to the above-mentioned characteristic structure, since the blindfold plate having a shape corresponding to the shape of the cutout portion of the closing substrate is used, the cutout portion can be closed with the blindfold plate having the minimum size. It is possible to form an economical and compact fire blocker hole closing jig with a small amount.

According to a fourth aspect of the present invention, there is provided a characteristic feature of a hole blocking jig for a fireproof partitioning body, wherein the blindfold plate is formed with a guide projection which is in contact with or close to the peripheral edge of the cutout portion of the blocking substrate. In point.

According to the above characteristic structure, the presence of the guide projection of the blindfold plate enables the blindfold plate to be moved along the cutout portion of the closed substrate, so that the work of aligning the blindfold plate with the closed substrate is performed. Since it can be carried out quickly, workability can be improved.

According to a fifth aspect of the present invention, there is provided a characteristic configuration of a hole closing jig for a fireproof partitioning body, wherein the blocking board is provided with a positioning projection which is in contact with or close to an inner peripheral surface of a through hole of the fireproof partitioning body. There is a point.

According to the above-mentioned characteristic structure, by placing the positioning protrusion of the closed substrate in the through hole, the closed substrate can be reliably and quickly attached to the outer surface of the peripheral edge of the through hole. It is possible to improve.

According to a sixth aspect of the present invention, there is provided a characteristic feature of a hole closing jig for a fireproof partitioning body, in which the blindfolding fragile portion for breaking and removing a portion protruding from an outer peripheral edge of the closing substrate is ruptured. Is formed.

According to the above characteristic structure, even if the fragile portion for guiding the fracture is broken and removed from the blindfold plate, the closed state of the through hole can be maintained. When the insertion position of the scale body is eccentric from the center of the through hole, and the fragile portion for inducing breakage of the blindfold plate largely protrudes outside the contour of the closed substrate,
The fragile part for inducing rupture can be removed by rupture so that it does not become invisible.

According to a seventh aspect of the present invention, there is provided a characteristic construction of a hole closing jig for a fireproof partition, wherein the closing substrate and the blindfold plate are:
It is that a band-shaped and heat-expandable heat-resistant filler is attached to the periphery of each back surface.

According to the above characteristic structure, since the heat resistant filler is attached to the closing substrate and the blind plate in advance, the workability of attaching the closing substrate to the outer surface of the through hole and the blind plate to the closing substrate. It is possible to speed up the mounting workability such as stacking workability. Moreover, since the heat-expandable heat-resistant filling material is interposed between the outer surface of the through hole and the closed substrate, and the mating margin between the closed substrate and the blind plate, a fire spreads to the long body by any chance. However, even if the heat-resistant filling material expands, for example, the peripheral portion of the through hole may be chipped off, or there may be a slight gap between the closed substrate and the blindfold plate. However, since the gap between the outer surface of the through-hole and the blocking substrate and the gap between the blocking substrate and the blind plate can be reliably closed, the heat blocking performance, smoke blocking performance, and fire blocking performance can be improved.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION [First Embodiment] A hole blocking jig A for a fireproof partition according to a first embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 4, the hole blocking jig A for a fireproof partition of this embodiment is formed in a fireproof partition such as a concrete frame such as a floor B, and a long body C is inserted therethrough. It can be installed and installed in the through-hole 1 that is formed.
A cable consisting of two electric wires and one control wire C
An example in which a cable group C such as a VT is inserted into the through hole 1 is shown. Further, normally, in the building, the cable group C in the wired state is wired in a restrained state so as to follow the wiring route via the wiring fixing band, the wiring support tool, and the like, so that there is a slack as much as possible. The wiring state is such that the cable group C can be repositioned within the through hole 1 because the slack and the like are suppressed as much as possible even in the portion of the floor B through which the through hole 1 is inserted. Is often small.

As shown in FIG. 1, the hole-blocking jig A for the fire-proof partition has a contour larger than the opening of the through-hole 1 formed in the floor B and having a circular shape in plan view, and is designed to Through hole 1
A disk-shaped closing substrate having a plate-like shape capable of abutting the outer surface B1 of the peripheral edge and formed with a notch 2A which can be externally laterally applied to the cable group C which is an elongated body inserted in the through hole 1. Two
And a blindfold plate 3 that is laminated on the closed substrate 2 and has an insertion hole 3A that closes the cutout 2A except the insertion portion of the cable group C. The closing substrate 2 and the blind plate 3 are formed by using, for example, a steel plate of about 0.8 mm to 2 mm, but other than the steel plate, they are formed by using a slate material plate, a ceramic material plate, or the like. It may be one.

The cutout portion 2A of the closing substrate 2 is formed so as to open laterally from the center axis of the disk with the same width, and the cable group projecting from the through hole 1 is laterally extended from the open section to the center axis of the disk. It can be guided and stored from the direction.

Further, on the back surface of the closed substrate 2, four positioning protrusions 2B are formed in the direction of the lower surface along the circumference of an imaginary circle having a diameter slightly smaller than the inner diameter of the through hole, for example, at approximately 90 degree intervals. When the outer peripheral surface of the through hole 1 is attached to the outer surface B1, the positioning protrusions 2B are placed on the inner peripheral surface 1a of the through hole 1 by placing all the positioning protrusions 2B of the closed substrate 2 in the through hole 1. Contacting or approaching,
The alignment with respect to the through hole 1 can be easily performed. Each of all the positioning protrusions 2B is fixed to one side of the metal plate having an L-shaped cross section on the back surface of the closed substrate 2 by spot welding or the like.

The blindfold plate 3 is a cutout portion 2A of the closed substrate 2.
Among them, it is a flat plate disk-like member having a size capable of closing an area other than the insertion portion of the cable group C, and has an insertion hole 3A formed in a portion eccentric from the central axis position. Therefore, the eccentric region from the axial center position of the through hole shown in FIG. 4A to the intermediate position between the axial center position shown in FIG. 4B and the peripheral surface of the through hole can be closed. , The blindfold plate 3 is rotated by 180 degrees in a plane, and from the intermediate position between the axial center position and the peripheral surface of the through hole 1 shown in FIG. 3C to the position near the inner wall of the through hole shown in FIG. Since the eccentric area up to the position can be closed, the through hole 1 can be easily closed no matter which position of the through hole the cable group C is inserted. it can.

Here, the blindfold plate 3 is formed with a mounting notch 3B which connects a specific portion of the outer peripheral edge of the blindfold plate 3 with the insertion hole 3A. The insertion hole 3A is opened by grasping and supporting it and forcibly twisting the other against the elastic restoring force to accommodate the cable group C projecting from the closed substrate 2 in the insertion hole 3A and to open the insertion hole. 3A to the original closed state and the closed substrate 2
By arranging them in a stacked manner on the top, the cutout portion 2A other than the insertion portion of the cable group C can be covered.

The hole-blocking jig A for the fireproof compartment of the first embodiment is provided with a heat-resistant filling material D that is filled so as to surround the portion of the cable group C protruding from the through hole 1. As shown in FIG. 2 and FIG. 3, the portion of the cable group C projecting from the closing substrate 2 and the blind plate 3 is filled in a conical shape such that the filling amount decreases toward the protruding tip side.

The heat-resistant filling material D is also filled between the outer surface B1 of the peripheral edge of the through hole 1 and the closed substrate 2, and between the laminated layers of the closed substrate 2 and the blindfold plate 3, and the outer surface B1 of the peripheral edge of the through hole 1 is formed. The heat resistant filling material D between the closed substrate 2 and the closed substrate 2 closes the gap between the closed substrate 2 and the outer surface B1 of the peripheral edge of the through hole 1 to ensure the through hole 1
Can be closed, and the closing substrate 2 and the blindfold plate 3 can be closed.
Since the heat-resistant filling material D between the laminated layers can close the gap between the closed substrate 2 and the blindfold plate 3, even if a fire should occur, the heat blocking performance and the smoke blocking performance can be improved. It is possible to form the through hole closing jig A having a good fire blocking performance. Specifically, for example, a heat-resistant filling material having a width of about 10 mm is provided, and a fitting margin between the closing substrate 2 and the blindfold plate 3, a fitting margin between the closing substrate 2 and the outer peripheral surface of the through hole 1, and a blindfold. It is preferable that the width of the plate 3 and the outer peripheral surface of the peripheral edge of the through hole 1 are at least corresponding to the margin.

As the heat-resistant filler D, a nonflammable, putty-like known material is used, and a material which can be filled directly or by applying a sheet-like material is used.

With such a structure, the structure shown in FIG.
-As shown in FIG. 3, the cable group C which penetrates the through-hole 1
Is housed so as to be covered by the cutout portion 2A, and in this state, the closed substrate 2 is mounted on the outer surface B1 of the peripheral edge of the through hole 1 in a mounted state. At the time of this attachment, all the positioning protrusions 2B ... Of the closed substrate 2 are housed in the through hole 1. In addition, the heat resistant filler D is provided in advance at least on the outer surface of the peripheral edge of the through hole 1 or on the contour edge side rear surface of the closed substrate 2.

Next, the insertion hole 3A of the blindfold plate 3 is opened to accommodate the cable group C, and at the same time as this accommodation, the insertion portion of the cable group C is extended to close the notch 2A. The blindfold plate 3 is laminated on. At the time of this lamination, the heat resistant filler D is provided on either the upper surface of the closed substrate 2 or the contour edge side back surface of the blindfold plate 3.

Next, the portion of the cable group C projecting from the closing substrate 2 and the blindfold plate 3 is filled in a conical shape so that the filling amount decreases toward the tip end side of the projection, and the hole blocking treatment for the fire prevention partition body is performed. Construction of tool A is completed.

[Second Embodiment] A hole-blocking jig A for a fireproof compartment according to a second embodiment of the present invention will be described below.
Here, the same components as those of the first embodiment are designated by the same reference numerals and the details thereof will be omitted.

This fire blocking compartment hole closing jig A is shown in FIGS.
As shown in FIG. 8, the contour of the closed substrate 2 is formed in a disk shape having an outer diameter larger than the inner diameter of the through hole 1, and further, the contour of the blindfold plate 3 is formed in the cutout portion 2A of the closed substrate 2. Is formed in an oval shape along the longitudinal direction of the.

Reinforcing ribs 2C, 2C are formed on the plate surface portion of the closed substrate 2 that intersects the cutout portion 2A.

An insertion hole 3A is formed in the blindfold plate 3 at a position eccentric to the one end side from the oval axis, and the inside of the blindfold plate 3 along the longitudinal direction and facing each other. At the edge portion, guide projections 3C, 3C that are in contact with the peripheral edge of the cutout portion of the closed substrate are formed by bending. This blindfold plate 3
A mounting notch 3B is formed at the outer peripheral edge of the insertion hole 3A so that the insertion hole 3A communicates with a specific position. Further, a slit 3B2 that does not lead to cutting is formed in a portion of the insertion hole 3A facing the mounting notch 3B, and the insertion hole 3A is formed.
It is also possible to open the mounting notch 3B to the left and right in a plane shape, and the operator can appropriately select the opening method.

Also in this embodiment, the eccentric region from the axial center position of the through hole 1 shown in FIG. 8A to the intermediate position between the axial center position and the peripheral surface of the through hole shown in FIG. 8B. Can be closed, and the blindfold plate 3 can be rotated 180 degrees in a plane to show an intermediate position between the axial center position and the through hole 1 peripheral surface shown in FIG. Since the eccentric region up to the position near the inner wall of the through hole 1 can be closed, no matter which position of the through hole 1 the cable group C is inserted into, it is easy. Through hole 1
It is configured so that it can be closed.

Moreover, in this embodiment, as shown in, for example, FIG. 8B and FIG. 8C, a part of the through hole other than the insertion part of the cable group C is closed, but it is closed. When one end side of the blindfold plate 3 protrudes from the substrate 2, the protruding portion of the blindfold plate 3 can be removed by fracture so that the protruding portion can be removed. Fragile parts for breaking guidance 3D, 3D
Are formed. In this embodiment, an example is shown in which both ends of the blindfold plate 3 are formed into the fragile portions 3D for breaking guidance, 3D, but only one end side of the blindfold plate 3 is fragile portion 3D for breaking guidance.
It may be formed in.

Specifically, one of the front surface and the back surface (the back surface in the drawing) is scraped off along the boundary line between the blindfold plate 3 portion on the insertion hole 3A side and the fragile portion 3D for fracture guidance. And a fragile portion 3D for fracture induction with respect to the blindfold plate 3 portion on the insertion hole 3A side is formed.
It is possible to fold and remove by breaking with a tool such as pliers.

Therefore, as shown in FIG. 9, the blindfold plate 3 has the closed substrate 2 when the through hole 1 is provided near the wall.
On the other hand, if the protruding portion on one end side of the blindfold plate 3 is on the wall side, it cannot be mounted by the wall B2, or as shown in FIG. 10, through holes 1 and 1 are provided so as to be adjacent to each other. In such a case, it is assumed that the protruding portion on one end side of the blindfold plate 3 with respect to the closing substrate 2 protrudes to the adjacent through hole. By removing the portion 3D, the mounting situation can be dealt with flexibly.

By adopting such a configuration, FIG.
~ As shown in FIG. 7, a cable group C inserted through the through hole 1
Is housed so as to be covered by the cutout portion 2A, and in this state, the closed substrate 2 is mounted in a mounted state on the outer surface B1 of the peripheral edge of the through hole 1. At the time of this attachment, all the positioning protrusions 2B ... Of the blindfold plate 3 are housed in the notch 2A of the closed substrate 2. Further, the heat resistant filler D is provided in advance on at least either the outer surface of the peripheral edge of the through hole 1 or the contour edge side rear surface of the closed substrate 2.

Next, the insertion hole 3A of the blindfold plate 3 is opened to accommodate and close the cable group C, and in this state, the blindfold plate 3 is laminated on the closed substrate 2. At the time of this stacking, the closed substrate 2
Heat-resistant filler D on the upper surface of the
Is provided.

Next, the cable group C projecting from the closing substrate 2 and the blind plate 3 is filled with the heat-resistant filler D in a conical shape so that the filling amount decreases toward the protruding tip side, and the fire protection is performed. The construction of the partition hole closing jig A is completed.

[Third Embodiment] A hole closing jig A for a fireproof compartment according to a third embodiment of the present invention will be described below.
Here, the same components as those of the first and second embodiments are designated by the same reference numerals, and the details thereof will be omitted.

Hole-blocking jig A for fireproof compartment of this embodiment
As shown in FIGS. 11 and 12, the closed substrate 2 is formed in a disc shape having an outer diameter larger than the inner diameter of the through hole 1, and the contour of the blindfold plate 3 is formed in the closed substrate. The occlusion substrate 2 is formed in an oval shape along the longitudinal direction of the notch 2A.
A heat-resistant filling tape D1, which is a circular strip-shaped and heat-expanding adhesive heat-resistant filler having a thickness of about 5 mm and a thickness of the closed substrate 2 is attached to the periphery of the back surface of the tape. In addition, on the periphery of the back surface of the blindfold plate 3, for example,
A heat-resistant filling tape D2, which is an elliptical strip having a width of about 5 mm and a thickness of about the thickness of the closed substrate 2, and a heat-expanding adhesive heat-resistant filling material, is attached. In the unused state, the release paper T is placed on the surface of each heat resistant filling tape D1, D2.
Is attached so that the release paper T can be peeled off at the time of use to utilize the adhesiveness.

The inner diameter L1 of the heat-resistant filling tape D1 which is the closed substrate 2 is about the same as or slightly larger than the hole diameter L2 of the through hole 1, that is, the outer surface B1 of the through hole 1 and the closed substrate 2. Since the alignment margin corresponds to the width dimension of the heat-resistant filler, when set in this way, the closed substrate 2 can be made to have the smallest diameter.

The heat-resistant filling tapes D1 and D2 used in this embodiment have, for example, a volume expansion coefficient of 4 to 10.
It is twice as non-flammable and sticky, and has a blocking substrate 2 and a blindfold plate 3.
The one that can be attached to and detached from is used.

Further, the blindfold plate 3 is provided with break-inducing fragile portions 3D, 3D for breaking and removing the part projecting from the outer peripheral edge of the closed substrate 2 as in the second embodiment.

More specifically, the back surface portion along the boundary line between the blindfold plate 3 portion on the insertion hole 3A side and the fracture guiding weak portion 3D is cut into a V-groove shape to reduce the cross-sectional thickness. The line 3a is formed, and it is possible to remove the breakage by bending the fragile portion 3D for guiding the break with respect to the blind plate 3 portion on the side of the insertion hole 3A. Here, when the fragile portion 3D for rupture guidance is to be ruptured and removed, as shown in FIG. 13, the fragile portion 3 for rupture guidance that is also the peripheral edge of the back surface of the blindfold plate 3 is removed.
Heat-resistant filling tape portion D attached to the perimeter of D
As shown in FIG. 14, 2a is removed when the fracture is removed,
It is reattached to the peripheral edge of the back surface of the blindfold plate 3 newly formed by the breakage removal. Here, as shown in FIG. 15, the heat-resistant filling tape is provided on each of the front surface of the back surface of the fragile portion 3D for fracture guidance and the peripheral edge of the back surface of the blindfold plate 3 that can be newly formed by removing the fracture of the fragile portion 3D for fracture guidance. A configuration in which D2a and D2b are attached may be used.

Also in this embodiment, the eccentric region from the axial center position of the through hole 1 shown in FIG. 12A to the intermediate position between the axial center position and the peripheral surface of the through hole shown in FIG. 12B. Can be closed, and the blindfold plate 3 can be planarly
After being rotated by a degree, the eccentric region from the intermediate position between the axial center position shown in FIG. 7C and the peripheral surface of the through hole 1 to the position near the inner wall of the through hole 1 shown in FIG. With such a configuration, it is possible to easily close the through hole 1 regardless of the position of the cable group C inserted in the through hole 1.

Moreover, in this embodiment as well, for example, as shown in FIG. 12C, the portion of the through hole other than the insertion portion of the cable group C is closed, but the closed substrate 2 is not visible. If one end of the hidden plate 3 protrudes,
By removing the fragile portion 3D for fracture guidance corresponding to the protruding portion, it is possible to prevent the blindfold plate 3 from largely protruding from the closed substrate 2.

By the way, when the blindfold plate 3 protrudes from the closed substrate 2, apart from removing the fragile portion 3D for breaking guide of the blindfold plate 3, as shown in FIG.
It is also possible to use a method in which D is bent toward the outer surface B1 side of the through hole 1 at the portion of the induced fracture line 3a to close the gap h due to the step with the closed substrate 2. In this case, as shown in the figure, the heat-resistant filler D2 attached to the back surface of the blindfold plate 3 is interposed corresponding to the closed gap h, and the notch of the closed substrate 2 is formed. The part 2A is in a closed state.

Then, in the unlikely event that a fire or the like occurs under the through hole 1, and the through hole 1 is heated by combustion,
By expanding the heat-expandable heat-resistant fillers D1 and D2 provided on the closing substrate 2 and the blindfold plate 3, the gap between the members can be closed and the through hole 1 can be surely closed. .

With this structure, the cable group C inserted through the through hole 1 is housed so as to be enveloped by the notch 2A, and in this state, the closed substrate 2 is placed on the outer surface B1 of the peripheral edge of the through hole 1. Install in the state. At the time of this attachment, all the positioning protrusions 2B ... Of the blindfold plate 3 are housed in the notch 2A of the closed substrate 2. In this state, the closed substrate 2 is placed on the outer surface B1 of the through hole 1 with the thermally expandable heat-resistant filler D1 interposed.

Next, the insertion hole 3A of the blindfold plate 3 is opened to accommodate the cable group C, and at the same time when the cable group C is accommodated, the notch 2A is closed except for the insertion portion of the cable group C. In this state, the closed substrate 2 The blindfold plate 3 is laminated on top. In this stacked state, the blindfold plate 3 is placed on the closed substrate 2 with the heat-expanding heat-resistant filler D2 interposed.

Next, the portion of the cable group C projecting from the closing substrate 2 and the blind plate 3 is filled with the heat-resistant filler D in a conical shape so that the filling amount decreases toward the protruding tip side, and the fire protection is performed. The construction of the partition hole closing jig A is completed.

[Other Embodiments] 1) In the above embodiment, the attachment by simply stacking the closing substrate 2 and the blindfold plate 3 on the outer surface of the peripheral edge of the through hole 1 in the mounted state has been described. The present invention is not limited to this,
Both may be attached to the outer surface B1 of the peripheral edge of the through hole 1 by using concrete bolts or the like.

2) In the above embodiment, the fire blocking partition hole closing jig A for the cable group C such as electric wires and control lines has been described, but the present invention is not limited to this, and is used for an air conditioner. It may be applied to the fire blocking partition hole closing jig A for refrigerant pipes for air conditioning.

3) Although the closed substrate 2 of each of the above-described embodiments has been described as a plate having a circular shape in a plan view, it is not limited to this and may be an elliptical shape or a rectangular shape.

4) In the above-described first embodiment, an example in which the breakage guide weakened portions 3D, 3D are not formed in the blindfold plate 3 has been described. However, the breakage guided weakened portions 3D, 3D are formed in the blindfold plate 3. It may be a certain one.

5) In the second and third embodiments, an example was described in which one fragile portion 3D for breaking guidance was formed on each longitudinal end of the blindfold plate 3, but the present invention is not limited to this. Not limited to this, at least at one end side in the longitudinal direction of the blindfold plate 3, as shown in FIG. 17, a plurality of guide fractures (three in the drawing are divided into three) that divide the protruding portion into a plurality of pieces along the longitudinal direction. Lines 3a are formed, and the divided fracture-inducing fragile portions 3D are separated from the rupture-inducing fragile portions 3D extending from the closed substrate 2 with the inductive rupture line 3a at a location corresponding to the actual protrusion amount as a boundary. It may be configured to be cut and removed. In this case, as shown in FIG. 18, handleability can be improved by using a structure in which a heat-resistant filling tape D2a ... Is attached in correspondence with the boundary edge portion with the fracture-inducing fragile portion 3D and each fracture-inducing fragile portion 3D. Good. With such a configuration, it is possible to deal with a situation in which the protruding length is small, and thus there is an advantage that the finished state is not felt unnatural.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a hole blocking jig for a fireproof partition according to a first embodiment of the present invention.

FIG. 2 is a simplified perspective view showing a state in which a hole blocking jig for a fire protection partition is attached to an outer surface of a peripheral edge of a through hole.

FIG. 3 is a cross-sectional view showing a state in which a hole blocking jig for a fireproof partition is attached.

FIG. 4 is a simplified plan view showing a state in which a long body inserted through a through hole is closed by a hole blocking jig for a fire prevention partition, and (a) is a long body inserted through an axial position of the through hole. The simplified plan view (b) showing the state of being closed by the hole closing jig for the fire is a state in which the long body inserted between the axial center position and the peripheral surface of the through hole is closed by the hole closing jig for the fire protection partition. The simplified plan view (c) shows a state in which a long body that is inserted through the intermediate position between the axial center position and the through hole peripheral surface is closed by the fire blocking partition hole closing jig, with the blindfold plates stacked in different directions. (D) is a simplified plan view showing a state in which a long body inserted through a position near the inner wall of the through hole is closed by a hole blocking jig for a fire protection partition

FIG. 5 is an exploded perspective view showing a hole blocking jig for a fire protection partition according to a second embodiment of the present invention.

FIG. 6 is a simplified perspective view showing a state in which a hole blocking jig for a fire prevention partition is attached to the outer surface of the peripheral surface of the through hole.

FIG. 7 is a cross-sectional view showing a state in which a hole blocking jig for a fireproof partition is attached.

FIG. 8 is a simplified plan view showing a state in which a long body inserted through a through hole is closed by a fire blocking partition hole closing jig. (A) is a long body inserted through the axial position of the through hole The simplified plan view (b) showing the state of being closed by the hole closing jig for the fire is a state in which the long body inserted between the axial center position and the peripheral surface of the through hole is closed by the hole closing jig for the fire protection partition. The simplified plan view (c) shows a state in which a long body that is inserted through the intermediate position between the axial center position and the through hole peripheral surface is closed by the fire blocking partition hole closing jig, with the blindfold plates stacked in different directions. (D) is a simplified plan view showing a state in which a long body inserted through a position near the inner wall of the through hole is closed by a hole blocking jig for a fire protection partition

FIG. 9 is a simplified plan view showing a state in which a long body inserted through a through hole formed near a wall is closed by a hole blocking jig for a fire protection partitioning body.

FIG. 10 is a simplified plan view showing a state in which a long body that is inserted through adjacent through holes is closed by a fire blocking partition hole closing jig.

FIG. 11 is an exploded perspective view showing a hole blocking jig for a fireproof partition according to a third embodiment of the present invention.

FIG. 12 is a simplified plan view showing a state in which a long body inserted through a through hole is closed by a hole blocking jig for a fire protection partition (a) is a long body inserted through the axial center position of the through hole. The simplified plan view (b) showing the state of being closed by the hole closing jig for the fire is a state in which the long body inserted between the axial center position and the peripheral surface of the through hole is closed by the hole closing jig for the fire protection partition. The simplified plan view (c) shows a state in which a long body that is inserted through the intermediate position between the axial center position and the through hole peripheral surface is closed by the fire blocking partition hole closing jig, with the blindfold plates stacked in different directions. (D) is a simplified plan view showing a state in which a long body inserted through a position near the inner wall of the through hole is closed by a hole blocking jig for a fire protection partition

FIG. 13 is a perspective view showing a main part of a blindfold plate.

FIG. 14 is a perspective view showing a main part of a blindfold plate.

FIG. 15 is a perspective view showing a main part of another blindfold plate.

FIG. 16 is a simplified front cross-sectional view showing a mounted state in which a fragile portion for inducing breakage of a blindfold plate of a hole blocking jig for a fire protection partition is bent.

FIG. 17 is a plan view of a blindfold plate showing a modified example of the fragile portion for guiding fracture.

FIG. 18 is a side sectional view showing a main part of a modified example of a fragile portion for guiding fracture.

FIG. 19 is a simplified cross-sectional view showing a conventional hole closing jig for a fire protection compartment.

[Explanation of symbols]

A Fire-blocking hole blocking jig B floor (fireproof compartment) B1 Outer surface of the periphery of the through hole C cable group (long body) D Heat resistant filler D1 Heat-resistant filling tape (heat-resistant filling material) D2 Heat-resistant filling tape (heat-resistant filling material) 1 through hole 2 Closure board 2A notch 2B positioning protrusion 3 blindfold 3A insertion hole 3B mounting notch 3C guide protrusion Fragile part for 3D fracture guidance

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Katsuji Takahara             Fuji Co., Ltd. 1440 Rokuzaki, Sakura City, Chiba Prefecture             Kura Sakura Office (72) Inventor Masahiro Iwasaki             1-5-1 Kiba Stock Exchange, Koto-ku, Tokyo             Inside Fujikura (72) Inventor Toshio Takada             287 West Japan             Electric Wire Co., Ltd. (72) Inventor Koji Kaneda             2-6-1 Miyajima, Ibaraki City, Osaka Prefecture Inabaden             Machine Industry Co., Ltd. F-term (reference) 2E001 DE03 FA34 FA35 GA12 GA76                       HA02 HA14 HB02 HF12

Claims (7)

[Claims] 1. A closed substrate having a plate-like shape capable of abutting an outer surface of a peripheral edge of a through hole of a fireproof partition and having a cutout portion laterally mandable with respect to an elongated body inserted through the through hole. And the notch of the closed substrate in the stacked state has a size capable of closing the region excluding the insertion portion of the elongated body, and the insertion hole of the elongated body is formed in an eccentric portion. A hole closing jig for a fire protection partition, which is provided with a blindfold plate, and in which the blindfold plate is formed with a mounting notch for communicating a specific portion of the outer peripheral edge thereof with the insertion hole. 2. A heat-resistant filling material, which is filled between an elongated body portion protruding from a through hole of the elongated body, an outer surface of the through hole and a closed substrate, and a stack of a closed substrate and a blind plate. The hole closing jig for a fireproof partition according to claim 1. 3. The contour of the closing substrate is formed in an arc shape having an outer diameter larger than the inner diameter of the through hole of the fireproof partition, and the contour of the blindfold plate is the length of the cutout portion of the closing substrate. The hole closing jig for a fire protection compartment according to claim 1 or 2, which is formed in an oval shape or an elliptical shape along the direction or a shape similar thereto. 4. The hole blocking jig for a fire protection partition according to claim 1, wherein the blindfold plate is provided with a positioning protrusion that is in contact with or close to the peripheral edge of the cutout portion of the closed substrate. 5. The fire-blocking partition according to claim 1, wherein the closing substrate is provided with a positioning protrusion that is in contact with or close to the inner peripheral surface of the through hole of the fire-blocking partition. Hole blocking jig. 6. The fragile portion for inducing rupture for rupturing and removing a portion projecting from the outer peripheral edge of the closed substrate is formed in the blindfold plate, according to claim 1. Hole blocking jig for fireproof compartments. 7. The fire protection system according to claim 1, wherein the closing substrate and the blind plate are provided with a band-shaped and thermally expansive heat-resistant filler material on the periphery of each back surface. Hole closing jig for partition.