JP6664997B2 - Holding tool - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a holder for holding a holding object arranged in a through hole formed in a partition of a building.

  Generally, an internal space of a building is divided into a plurality of room spaces by partitions such as walls, floors, and ceilings. In order to dispose a long body such as a pipe or a cable over the plurality of chamber spaces, a through hole may be formed in the partition body and the long body may be inserted through the through hole. In this case, a post-treatment such as filling the gap between the through hole and the elongated body with a filler is required. For example, in order to prevent the spread of fire when a fire occurs in a certain room space, it is necessary to take fire prevention measures in the gap between the through hole and the elongated body.

  For example, Japanese Patent Laying-Open No. 2005-73357 (Patent Document 1) discloses a fire protection structure using a pack member containing a paste-like heat-expandable refractory material sealed in a bag body. The pack member is wound around the elongate body on the opening side of the receiving member arranged in the through hole of the partition, and then inserted into the through hole (receiving member). The pack member fills a gap formed between the inner surface of the through hole and the outer surface of the elongated body in a state where the pack member is received and supported by the receiving bracket from one axial side of the through hole. Thereafter, the pack member as the object to be held is pressed and held in the axial direction by a holding metal attached to the receiving metal from the other side in the axial direction of the through hole.

  However, the holding fixture as the holding fixture of Patent Literature 1 has to be attached in such a manner that the holding fixture is hooked to the receiving fixture inside the through-hole, so that there is room for improvement in terms of workability. In addition, since the holding member is formed by processing a wire-like wire, the radial region in which the holding target (pack member) can be actually held is extremely narrow. For this reason, if the object to be held is shifted in the radial direction due to, for example, dripping inside the through-hole, the object to be held may not be able to be sufficiently pressed. Further, when the holding metal is pressed down, the holding metal is inclined so that the center portion thereof is displaced in the axial direction with both ends serving as connecting portions to the receiving metal as a fulcrum. There was a case where it was not able to hold down enough.

JP 2005-073357 A

  It is desired to realize a holding tool that can easily and reliably press the object to be held in the through hole formed in the partition body in the axial direction.

The holder according to the present invention,
A holding tool for holding and holding a holding object arranged in a through hole formed in a partition of a building in an axial direction of the through hole,
An attachment base attached to a peripheral portion of the through hole in the partition,
A plate-shaped holding portion configured of a plate-like body connected to the mounting base, extending at least in the radial direction of the through-hole, and holding the object to be held in an intersecting posture with respect to the object to be held;
Is provided.

  According to this configuration, the mounting operation of the mounting base to which the plate-shaped pressing portion is connected (or connected) can be performed outside the through-hole in which a relatively large working space can be easily secured. Workability at the time of installation can be improved. The plate-shaped pressing portion connected to the mounting base portion can reliably hold the object to be held in a relatively large radial region in a posture extending in the radial direction of the through hole. Further, since the plate-shaped pressing portion presses the holding target object in an intersecting posture with respect to the holding target object, the plate-shaped pressing portion is less likely to be deformed as compared with a case where the holding target is pressed by a wire-like member arranged along the circumferential direction, for example. Therefore, even if the area for holding the holding object itself is not so large, the holding object can be firmly held in the axial direction inside the through hole. Therefore, it is possible to provide a holding tool that can easily and reliably press the object to be held in the through hole formed in the partition body in the axial direction.

  Hereinafter, preferred embodiments of the present invention will be described. However, the scope of the present invention is not limited by the following preferred embodiments.

In one aspect,
It is preferable that the plate-shaped pressing portion is configured to be capable of holding the object by elastic restoring force in a state in which the plate-shaped pressing portion is bent and deformed and is in surface contact with the object.

  According to this configuration, since the holding target is pressed in a state where the plate-shaped pressing portions are in surface contact, the holding target can be firmly pressed with a larger area. In addition, the object to be held can be more firmly held by the elastic restoring force of the bent and deformed plate-shaped holding portion over a wide range.

In one aspect,
It is preferable that a plurality of concave grooves extending parallel to each other in a direction perpendicular to the axial direction of the through hole are provided in the plate-shaped pressing portion.

  According to this configuration, the plate-shaped holding portion is easily bent and deformed along the direction in which the plurality of concave grooves are arranged. Therefore, it is possible to easily realize a structure in which the bent and deformed plate-shaped pressing portion is brought into surface contact with the holding object by the elastic restoring force, and it is possible to strongly hold the holding object while improving workability.

In one aspect,
The plate-shaped holding portion is integrally connected to the mounting base, and a connection portion between the mounting base and the mounting portion is used as a fulcrum, and a posture along a circumferential direction of the through-hole and a diameter of the through-hole. It is preferable that the posture can be changed between the posture along the direction.

  According to this configuration, for example, in a state where the plate-shaped pressing portion is in a posture along the circumferential direction, the holding target can be smoothly inserted into the through hole without causing interference with the plate-shaped pressing portion. it can. After inserting the object to be held, the posture of the plate-shaped holding part is changed with the connecting part between the mounting base as a fulcrum and the posture along the radial direction, so that the object to be held can be easily held in one operation Can be.

In one aspect,
The mounting base includes a flange attached to the partition, and a sleeve body integrated with the flange at a first end and inserted into the through-hole,
It is preferable that the sleeve main body and the object to be held are integrated at a second end of the sleeve main body opposite to the first end.

  According to this configuration, the mounting base portion is configured to include the flange portion and the sleeve main body portion that are integrated with each other, and the holding target is further integrated with the sleeve main body portion that forms the mounting base portion. The object can be inserted into the through hole together with the sleeve body. Since the mounting base and the object to be held can be handled collectively, the workability when arranging the object to be held inside the through hole can be improved.

In one aspect,
It is preferable that a receiving portion for receiving and supporting the object to be held from the second end side further than an integrated portion of the sleeve body and the object to be held is provided on the sleeve body.

  According to this configuration, the holding target can be stably held by sandwiching the holding target from both sides in the axial direction between the receiving portion and the plate-shaped pressing portion.

  Further features and advantages of the present invention will become more apparent from the following description of exemplary and non-limiting embodiments described with reference to the drawings.

Exploded perspective view of the fire protection structure according to the embodiment. Perspective view of holder Perspective view of holder Front view of fireproof pack member Exploded perspective view showing an integrated structure of a holder and a fire-resistant pack member A perspective view showing one aspect of a construction procedure of a fire prevention structure. A perspective view showing one aspect of a construction procedure of a fire prevention structure. Sectional view of fire protection structure A perspective view showing one aspect of a construction procedure of a fire prevention structure. Sectional view of fire protection structure Perspective view of a holder of another embodiment

  An embodiment of a holder according to the present invention will be described with reference to the drawings. In the present embodiment, an example will be described in which the holder according to the present invention is applied to a fire protection unit for preventing fire spread and a fire prevention structure using the same. The holder 1 of the present embodiment is used for holding a holding object 5 arranged in a through hole 7H formed in a partition body 7 of a building by pressing the holding object 5 in an axial direction L of the through hole 7H. The holder 1 includes an attachment base 2 attached to the peripheral edge 7p of the through hole 7H in the partition body 7, and a plate-like body connected to the attachment base 2, extends at least in the radial direction, and is an object to be held. And a plate-shaped holding portion 4 for holding the object 5 in an intersecting posture with respect to the holding object 5. Thereby, the holding object 5 can be easily and reliably pressed in the axial direction L inside the through hole 7H formed in the partition body 7. Hereinafter, the holder 1, the fire protection unit 100, and the fire prevention structure of the present embodiment will be described in detail.

  In the following description, the “axial direction L”, the “circumferential direction”, and the “radial direction” refer to the mounting base 2 (the flange 20 and the sleeve body in the present embodiment) attached to the peripheral edge 7p of the through hole 7H. 30) is defined as a reference. That is, the direction in which the central axis of the mounting base 2 extends is the axial direction L, the direction that circumvents the central axis of the mounting base 2 is the circumferential direction, and the direction that extends in a direction orthogonal to the central axis of the mounting base 2. Is the radial direction.

  In the present embodiment, the partition 7 to which the fire protection structure is applied is a fire-resistant and fire-resistant structure that partitions a space in a building into a plurality of room spaces. The partitioning body 7 may be, for example, a wall section that horizontally partitions a plurality of room spaces as shown in FIG. 1, or a floor (or ceiling; not shown) that vertically partitions the plurality of room spaces. It may be. The partition 7 may be a solid wall such as reinforced concrete (RC) or lightweight cellular concrete (ALC), or may be a hollow wall such as gypsum board. Of course, a member having a structure other than these may be used as the partition body 7.

  The partition 7 has a through hole 7H penetrating the partition 7 in the thickness direction (in the illustrated example, the horizontal direction). In the present embodiment, a circular through hole 7H is formed. However, without being limited to such a configuration, the specific shape of the through hole 7H may be, for example, an elliptical shape, a polygonal shape, or other various shapes.

  The elongated body 8 is inserted into the through hole 7H of the partition 7. The long body 8 has a long structure extending in one direction, such as a linear body, a tubular body, and a belt-like body. Examples of such an elongated body 8 include, for example, piping for an air conditioner. In the present embodiment, the long body 8 includes a piping member 81 for circulating the refrigerant and a drain pipe 82 for discharging the drain water.

  The piping member 81 has a fluid pipe 81A through which a refrigerant flows, and a coating material 81B that covers the periphery of the fluid pipe 81A. The fluid pipe 81A is, for example, a tubular member made of metal, and the coating material 81B is, for example, a heat insulating material made of, for example, a synthetic resin that is provided on the fluid pipe 81A. The drain tube 82 is, for example, a tubular member made of a synthetic resin. In addition to the above, for example, an electric cable or the like configured by providing an insulating coating material around a conductor wire may be included in the elongated body 8. In the present embodiment, the plurality of elongated bodies 8 are bundled and inserted into the through-hole 7H. The long bundles 8 of one bundle are densely arranged in the through hole 7H with their outer surfaces in contact with each other. A valley space V is formed over each outer surface of the long bodies 8 adjacent to each other (see FIG. 8).

  A fire prevention structure is provided in a gap space S between the through hole 7H and the plurality of elongated bodies 8. The gap space S is a space that extends in a radial gap between the inner surface of the through hole 7H and the outer surface of each of the plurality of elongated bodies 8. The fire protection structure of the present embodiment is realized by using a fire-resistant pack member 50 (an example of the holding object 5) arranged in the through hole 7H. More specifically, the fire-prevention measure structure includes a mounting base 2 including a plate-shaped flange 20 and a tubular sleeve main body 30, and a fire-resistant pack member 50 integrated with the mounting base 2. This is realized by using the measure unit 100. Further, the holder 1 is used to hold the fire-resistant pack member 50 as the holding target object 5 while pressing it in the axial direction L inside the through hole 7H. The holder 1 and the fire protection unit 100 are integrally formed with the mounting base 2 in common.

  As shown in FIG. 2, the holding tool 1 includes a mounting base 2 and a plate-shaped holding section 4 connected to the mounting base 2. In the present embodiment, the holder 1 includes one mounting base 2 and a plurality (four in this example) of plate-shaped pressing portions 4 commonly connected to the mounting base 2. Each part constituting the holder 1 is formed using, for example, a resin material.

  The mounting base 2 is mounted on a peripheral portion 7p of the through hole 7H in the partition body 7. In the present embodiment, the mounting base 2 includes a flange 20 and a sleeve main body 30 integrated with the flange 20. The flange portion 20 is a portion that is directly attached to the peripheral portion 7p of the through hole 7H in the attachment base 2. The flange portion 20 is formed in an annular shape (annular shape in this example) corresponding to the shape of the through hole 7H. However, a part in the circumferential direction is cut off, and the flange portion 20 is formed in a C shape as a whole. As described above, in the present embodiment, even if a part in the circumferential direction is divided, if the divided ends are brought close to each other, if the shape is connected like a ring as a whole, the shape is “annular”. Shall be included in the concept.

  The flange 20 has a fixing hole 21 through which a fixing member such as a screw is inserted. The fixing base 2 can be attached to the partition 7 by screwing the fixing member inserted into the fixing hole 21 into the partition 7 (see FIG. 1). However, depending on the construction state, the mounting base 2 is attached to the partition 7 in an incompletely fixed state, instead of being completely fixed using such a fixing member (for example, the flange portion 20 is simply disposed facing the partition 7). Is also possible. At a plurality of radially inner ends of the flange portion 20 (four in this example), storage recesses 22 having a constant circumferential width and recessed radially outward are formed. I have. In the storage recess 22, a plate-shaped pressing portion 4 in a storage posture described later is stored.

  The sleeve main body 30 is a part integrated with the flange 20 and inserted into the through hole 7H. The sleeve main body 30 is formed in a tubular shape (a cylindrical shape in this example) having a shape corresponding to the shape of the through hole 7H. However, a part in the circumferential direction is cut off, and the sleeve main body 30 is formed in a C-shaped cylindrical shape as a whole. As described above, in the present embodiment, even if a part of the circumferential direction is divided, if the divided ends are brought close to each other, if the shape has a cylindrical shape as a whole, the “cylindrical” Shall be included in the concept.

  The sleeve body 30 is integrated with the flange 20 at a first end 30a which is an end on one side in the axial direction. The sleeve main body portion 30 of the present embodiment includes a plurality of axially extending portions 31 that are distributed in the circumferential direction and respectively extend in the axial direction L, and a plurality of axially extending portions 31 that are distributed in the axial direction L and extend in the circumferential direction. And a plurality of circumferentially extending portions 32. Thus, the sleeve main body 30 is formed in a cylindrical shape having the penetrating portion (lightening portion) 33 penetrating in the thickness direction.

  In the present embodiment, the sleeve main body 30 has a slit 35 extending along the circumferential direction near the second end 30b which is the end on the other axial side (opposite to the first end 30a). Have. The slit 35 is formed so as to penetrate the sleeve main body 30 in the thickness direction. The slit portion 35 is formed narrower in the axial direction L than the through portion 33. Further, the sleeve body 30 has a plurality of (seven in this example) locking claws 36 distributed in the circumferential direction at the second end 30b. The locking claw 36 is formed in a hook shape. As shown in FIG. 3, the locking claw 36 as the locking portion can be locked to the slit portion 35 as the locked portion by changing the posture to a bent posture.

  In the present embodiment, the mounting base 2 (specifically, the sleeve main body 30) and the object 5 to be held at the second end 30b of the sleeve main body 30 by the slit 35 and the locking claw 36 that can be locked to each other. And the refractory pack member 50 is integrated. The refractory pack member 50 has flexibility. As shown in FIG. 4, the refractory pack member 50 of the present embodiment includes a flexible bag body 51 and a paste-like heat-expandable refractory material 53 sealed inside the bag body 51.

  The bag body 51 can be formed of, for example, a combustible plastic film (for example, a polyethylene film or a nylon film). At the periphery of the refractory pack member 50, the bag body 51 is in close contact with the heat-expandable refractory material 53 therebetween. In the refractory pack member 50, a plurality of insertion holes 52 are formed at predetermined intervals along one side (specifically, one of the long sides) in a portion where the bag body 51 is in close contact. I have. The insertion hole 52 is formed to be slightly larger than the locking claw 36 provided in the sleeve main body 30.

  The heat-expandable refractory material 53 is a member having heat expansion properties (the property of increasing the volume by heating) and fire resistance (the property of easily withstanding heat, the property of high melting temperature and the difficulty of burning). As the heat-expandable refractory material 53, a known material can be used without any particular limitation. For example, a putty-like member (a heat-expandable putty-like refractory material) can be used. However, the thermally expandable refractory material 53 of the present embodiment has a greater content of plasticizer (water in the case of water, oil in the case of oil) than usual, and is in a paste form as a whole. The heat-expandable refractory material 53 expands in its thickness direction when heated to, for example, 200 ° C. or higher. The coefficient of thermal expansion of the refractory pack member 50 including the thermally expandable refractory material 53 may be, for example, 2 to 40 times.

  In order to integrate the sleeve main body 30 and the refractory pack member 50, as shown in FIG. 5, the refractory pack member 50 is oriented so that the insertion hole 52 is located on the second end 30b side of the sleeve main body 30. In addition, the sleeve body 30 is arranged radially inside along the inner surface thereof. After the plurality of locking claws 36 of the sleeve main body 30 are inserted into the corresponding insertion holes 52 of the refractory pack member 50, the distal ends thereof are locked in the slit portions 35. In this manner, the sleeve main body 30 and the fire-resistant pack member 50 can be integrated so as to hold one side of the fire-resistant pack member 50. The sleeve main body 30 and the refractory pack member 50 can be separated from each other by performing a procedure reverse to the above. Thus, the sleeve main body 30 and the refractory pack member 50 are configured to be detachable.

  In the present embodiment, the sleeve main body 30 has a plurality of (eight in this example) receiving portions 38 at the second end 30b of the sleeve main body 30. The receiving portion 38 is formed as a thin plate-shaped portion extending radially inward from the second end portion 30b of the sleeve body portion 30. The receiving portion 38 is formed in a trapezoidal shape having a predetermined circumferential width and a predetermined radial width. The receiving portion 38 receives and supports the refractory pack member 50 further from the second end 30b side than the integrated portion of the sleeve main body portion 30 and the refractory pack member 50 by the support surface 38a (see FIG. 10). Further, the receiving portion 38 can be flexibly deformed under the action of an external force (see FIG. 3). For example, when the holder 1 (the fire protection unit 100) is inserted into the through hole 7H, the distal end of the receiving portion 38 contacts the outer surface of the elongated body 8, and the receiving portion 38 is positioned inside the through hole 7H. It may be deformed so as to be displaced toward.

  In the present embodiment, the plate-shaped holding portion 4 that constitutes the holder 1 together with the mounting base 2 is formed of a plate-like body connected to the mounting base 2. The plate-shaped holding portion 4 is formed in a rectangular shape having a predetermined circumferential width and a predetermined axial width (more specifically, a vertically long rectangular shape having a long side along the axial direction L). A plurality (four in this example) of the plate-shaped pressing portions 4 are provided, and the plurality of plate-shaped pressing portions 4 are dispersedly arranged in the circumferential direction. The plate-shaped pressing portion 4 is connected to the sleeve main body 30 (specifically, in the axial direction) at a connection portion 30c having an axial length shorter than the plate-shaped pressing portion 4 (about 1/4 in the illustrated example). It is integrally connected to the extending portion 31).

  The plate-shaped holding portion 4 has a posture along the circumferential direction (hereinafter, referred to as “storage posture”; see FIG. 2) and a posture along the radial direction (hereinafter, “extended posture”) with the connection portion 30c as a fulcrum. (See FIG. 3).

  As shown in FIG. 2, in the storage position, the plate-shaped pressing portion 4 is arranged such that a radially inner surface thereof is flush with an inner peripheral surface of the sleeve main body 30. Further, the plate-shaped holding portion 4 is arranged so as to fit into a storage recess 22 formed at a radially inner end of the flange portion 20. At this time, in the present embodiment, the plate-shaped pressing portion 4 is arranged such that one end in the axial direction L projects further in the axial direction L than the flange portion 20.

  In the extended posture, the plate-shaped pressing portion 4 is arranged to extend at least in the radial direction in the internal space of the sleeve main body 30. “Extend at least in the radial direction” means that the direction in which the plate-shaped pressing portion 4 extends from the connection portion 30c has a radial component. That is, it means a state of extending parallel to the radial direction, or a state of extending obliquely in both the radial direction and the circumferential direction. The plate-shaped holding portion 4 in the extending position is arranged so as to extend at least in the radial direction, and presses the refractory pack member 50 in an intersecting position with respect to the refractory pack member 50.

  Here, the intersecting posture includes a posture in which the plate-like holding portion 4 formed of a plate-like body and the fireproof pack member 50 as the holding object 5 are orthogonal (orthogonal posture), and the plate-like holding portion 4 and the fireproof pack. A posture (inclined posture) in which the member 50 is inclined (may be in partial surface contact), a part of the plate-like holding portion 4 is orthogonal to the refractory pack member 50 and the other portion of the plate-like holding portion 4 And the refractory pack member 50 is inclined (may be in partial surface contact) (position of displacement). The plate-shaped holding portion 4 presses the refractory pack member 50 in a state where the plate-like pressing portion 4 does not entirely follow the refractory pack member 50 but only a part thereof is along the refractory pack member 50.

  According to one embodiment, the plate-shaped holding portion 4 in the extended posture is configured such that the holding body 41 itself constituting the plate-shaped holding portion 4 itself is not deformed (see the lower side in FIG. 3), and the refractory pack member is provided. 50 is pressed in the axial direction L. In this case, the plate-shaped holding portion 4 is in a state orthogonal to or close to the refractory pack member 50 (the above-described orthogonal posture or the inclined posture), and the edge 41 e on the side opposite to the flange portion 20 in the axial direction L. Thus, the refractory pack member 50 is pressed.

  According to another aspect, the plate-shaped pressing portion 4 is configured to be elastically deformable (deflection-deformable), and the plate-shaped pressing portion 4 in the extended posture has a pressing main body portion 41 that configures the plate-shaped pressing portion 4. In a state of being flexed and deformed (see the upper side of FIG. 3), the refractory pack member 50 is pressed in the axial direction L. In this case, the plate-shaped pressing portion 4 is in a state where only the pressing portion 41 f on the opposite side to the flange portion 20 in the axial direction L is along the fire-resistant pack member 50 and the other portions are orthogonal to the fire-resistant pack member 50. Or, it becomes a state close to it (the above-described displacement posture). In this state, the plate-shaped pressing portion 4 presses the refractory pack member 50 by the elastic restoring force in a state where the pressing portion 41f is in surface contact with the refractory pack member 50.

  The pressing portion 41f is formed to be thinner than other portions of the pressing main body 41. In the pressing portion 41f, a plurality of concave grooves 42 extending parallel to each other in a direction perpendicular to the axial direction L are formed. The plurality of concave grooves 42 are formed so as to be arranged in the axial direction L at a predetermined interval from each other. The concave groove portion 42 is formed on a surface of the pressing portion 41 f of the pressing main body portion 41 facing radially outward in the storage posture of the plate-shaped pressing portion 4. By setting the thickness of the pressing portion 41f and the presence of the concave groove portion 42, the plate-shaped pressing portion 4 can be easily elastically deformed (bent deformed).

  Hereinafter, a construction procedure of the fire protection structure realized using the fire protection unit 100 of the present embodiment will be described. First, as shown in FIG. 6, in a state in which a bundle of a plurality of elongated bodies 8 is arranged in a through hole 7H formed in a partition body 7 of a building, a long bundle of bundles is formed outside the through hole 7H. The fire protection unit 100 is arranged so as to surround the body 8. At this time, the fire protection unit 100 is arranged around the long bundle 8 in a state where the divided ends of the sleeve main body 30 are separated from each other and expanded. At that time, the fire protection unit 100 is arranged such that the second end 30b in which the sleeve main body 30 and the refractory pack member 50 in the axial direction L are integrated is located on the partition 7 side. Thereafter, the divided ends are brought close to each other and are made to face each other in the circumferential direction, so that the sleeve main body 30 is formed in a cylindrical shape.

  Next, the fire protection unit 100 is inserted into the through hole 7H from the second end 30b side where the sleeve body 30 and the fire-resistant pack member 50 in the axial direction L are integrated. At this time, even when the refractory pack member 50 is formed by including the paste-like heat-expandable refractory material 53 and is soft, the refractory pack member 50 is formed in the gap space S between the through-hole 7H and the plurality of elongated bodies 8. The refractory pack member 50 can be easily inserted all the way together with the sleeve main body 30 having a certain rigidity or more. In particular, even when the clearance space S is narrow in the radial direction (the space factor is high), the refractory pack member 50 can be easily inserted to the back. Therefore, the workability at the time of performing a fire prevention measure on the through hole 7H of the partition body 7 can be improved. Since the outward flange portion 20 is provided at the first end portion 30a of the sleeve main body portion 30 and has an increased thickness, the pushing operation of pushing the fire protection unit 100 in the axial direction L is also easy.

  The pushing operation of the fire protection unit 100 is performed until the flange 20 contacts the surface of the partition 7 (see FIGS. 7 and 10). In this state, the second end 30b of the sleeve body 30 reaches the position on the surface on the opposite side of the partition 7 or a position close thereto. In this position, since the refractory pack member 50 is integrated with the sleeve main body 30, even if the refractory pack member 50 is formed by enclosing the paste-like heat-expandable refractory material 53 and is soft, the refractory pack member 50 can be removed. Can be effectively suppressed. Therefore, the shape retention of the refractory pack member 50 can be maintained over a long period of time.

  Thereafter, as shown in FIG. 7, the portion of the refractory pack member 50 that has protruded in the axial direction L from the first end 30a of the sleeve body 30 is pushed into the through hole 7H. And the said part is arrange | positioned in the valley space V over each outer surface of the long body 8 adjacent to each other. At that time, as shown in FIG. 8, the refractory pack member 50 is arranged in the valley space V in a state of being deformed into a shape corresponding to the valley space V. Since the refractory pack member 50 is formed by including the paste-like heat-expandable refractory material 53 and is soft, the shape can easily follow the plurality of valley spaces V formed on the outer surface of the bundle of long members 8. Can be. Accordingly, the gap space S between the through hole 7H and the elongated body 8 including the plurality of valley spaces V can be sufficiently filled. At this time, since the flange portion 20 is in contact with the surface of the partition 7, the fire prevention measure unit 100 does not move in the axial direction L due to the pushing operation during the pushing operation of the refractory pack member 50. Further, since the plate-shaped holding portion 4 is maintained in the storage posture, the fire-resistant pack member 50 can be smoothly pushed into the through hole 7H without causing interference with the plate-shaped holding portion 4.

  Thereafter, as shown in FIG. 9, the plate-shaped holding portion 4 in the storage position is swung about the connection portion 30c as a fulcrum so as to extend at least in the radial direction, and the posture is changed to the extension position. At this time, by performing a pinching operation on a portion of the plate-shaped pressing portion 4 that protrudes in the axial direction L from the flange portion 20, it is possible to easily perform a posture changing operation of the plate-shaped pressing portion 4 from outside the through hole 7H. it can. At the end of the previous step, if the edge 41e (see FIG. 3) of the plate-shaped holding portion 4 opposite to the flange portion 20 is buried in the refractory pack member 50, the plate-shaped holding portion 4 is moved along with the posture change operation. The pressing portion 41 f is in a state where the pressing portion 41 f comes into surface contact with the refractory pack member 50 while flexing and deforming. After the plate-shaped holding portion 4 is set to the extended posture, the plate-shaped holding portion 4 in a bent and deformed state presses the fire-resistant pack member 50 by elastic restoring force in a state of being in surface contact with the fire-resistant pack member 50. Will be.

  In the present embodiment, unlike the case of using a holder formed by processing a wire-like wire, for example, the plate-shaped holding portion 4 extending at least in the radial direction allows the refractory pack member to be wide in a radial direction region. 50 can be reliably held down. For example, even if sagging occurs in the refractory pack member 50, the refractory pack member 50 can be reliably pressed even at a radial position after deformation due to the sag. In addition, the plate-shaped pressing portion 4 that comes into surface contact with the refractory pack member 50 allows the refractory pack member 50 to be firmly pressed over a large area. Moreover, the resilient restoring force of the bent and deformed plate-shaped holding portion 4 can more strongly hold the fire-resistant pack member 50 over a wide range. For this reason, even if the clearance space S between the through hole 7H and the elongated body 8 is relatively wide (the space factor is low), the receiving portion 38 and the plate-shaped pressing portion 4 in the axial direction L By firmly sandwiching the refractory pack member 50 between them (see FIG. 10), it is possible to effectively prevent the refractory pack member 50 from sagging. Therefore, also from this point, the shape retention of the refractory pack member 50 can be maintained over a long period of time.

  Furthermore, the fireproof pack member 50 can be easily and securely pressed by one operation only by changing the position of the plate-shaped pressing portion 4 from the storage position to the extended position. Therefore, the workability when performing fire prevention measures on the through-hole 7H of the partition 7 including the operation for holding the refractory pack member 50 in the axial direction L can be greatly improved.

  In addition, when the refractory pack member 50 is pushed deeper than the edge 41 e of the plate-shaped holding portion 4 into the through hole 7 </ b> H at the end of the previous process, the plate-shaped holding portion in the extended posture is set. 4 presses the refractory pack member 50 at the edge 41 e (see FIG. 3) opposite to the flange 20. Even in such a case, the plate-shaped pressing portion 4 that abuts on the refractory pack member 50 at the edge 41e in an orthogonal state or a state close to the orthogonal state uses a holder formed by processing a wire-shaped wire, for example. It is harder to deform than the case. Therefore, even when the area for holding the fire-resistant pack member 50 is not so large, the fire-resistant pack member 50 can be firmly pressed in the axial direction L even if the area for holding the fire-resistant pack member 50 is not so large. it can. Moreover, the refractory pack member 50 can be reliably pressed in a wide radial direction region by the plate-shaped pressing portion 4 extending at least in the radial direction.

[Other embodiments]
(1) In the above-described embodiment, the configuration in which the holder 1 includes one mounting base 2 and a plurality of plate-shaped pressing portions 4 commonly connected thereto has been described as an example. However, the present invention is not limited to such a configuration. For example, the fire-resistant pack member 50 may be axially moved by using a plurality of holders 1 each including one mounting base 2 and one plate-shaped pressing portion 4 connected thereto. It may be held down by holding it at L. In such a configuration, the plurality of holders 1 may be attached to the partition 7 independently of each other, or may be attached to the partition 7 in an integrated state via the sleeve main body 30, for example. good.

(2) In the above-described embodiment, the configuration in which the mounting base 2 and the plate-shaped pressing portion 4 are integrally connected has been described as an example. However, without being limited to such a configuration, for example, the plate-shaped pressing portion 4 may be configured to be detachable from the mounting base 2. In this case, for example, it is preferable that a slide lock unit is provided at a connection portion between the mounting base 2 and the plate-shaped pressing portion 4. The slide lock means allows the plate-shaped pressing portion 4 to slide to one side in the axial direction (specifically, the second end portion 30b side of the sleeve body 30), and allows the plate-shaped pressing portion 4 to move in the axial direction. The sliding movement to the other side (specifically, the first end 30a side of the sleeve body 30) is prevented.

(3) In the above embodiment, the pressing portion 41 f that comes into contact with the refractory pack member 50 in a state of surface contact in the plate-shaped holding portion 4 is formed to be thinner than other portions of the holding body 41. Has been described as an example. However, without being limited to such a configuration, for example, the plate-shaped pressing portion 4 may be formed so as to have a uniform thickness over the entirety.

(4) In the above-described embodiment, the configuration in which the plurality of groove portions 42 are formed in the plate-shaped holding portion 4 has been described as an example. However, without being limited to such a configuration, for example, the plate-shaped pressing portion 4 may be formed so as to have a smooth surface without the concave groove portion 42.

(5) In the above embodiment, the configuration in which the receiving portion 38 is provided on the second end 30b of the sleeve main body 30 has been described as an example. However, without being limited to such a configuration, for example, the sleeve main body 30 may not have the receiving portion 38 at the second end 30b.

(6) In the above-described embodiment, the configuration in which the sleeve main body 30 is formed in a hollow cylindrical shape having the through portion 33 has been described as an example. However, without being limited to such a configuration, for example, the sleeve main body 30 may be formed in a non-porous (excluding the existence of the slit 35) tubular shape having no through portion 33.

(7) In the above-described embodiment, a description is given as an example of a configuration in which the plate-shaped pressing portion 4 extended in the through hole 7 </ b> H presses the refractory pack member 50 in an intersecting position with respect to the refractory pack member 50. did. However, without being limited to such a configuration, for example, when the gap space S is narrow in the radial direction (the space factor is high), after the insertion into the through hole 7H, the plate-shaped holding portion 4 is kept in the storage posture. The holder 1 may be used in such a manner as to be installed. As described above, if the holding tool 1 is configured so that at least the plate-shaped pressing portion 4 can be used in a mode of pressing the refractory pack member 50 in the axial direction L, the plate-shaped pressing portion 4 can move the refractory pack member 50 in the axial direction. L may be used in such a manner that it is not pressed.

(8) In the above-described embodiment, the configuration in which the mounting base 2 and the refractory pack member 50 are integrated by the slit 35 and the locking claw 36 that can be locked to each other has been described as an example. However, without being limited to such a configuration, the mounting base 2 and the refractory pack member 50 may be connected to each other by other integrated means such as an adhesive (adhesive layer), heat fusion, a clip member, and an eyelet member. They may be integrated.

(9) In the above embodiment, the configuration in which the mounting base 2 and the refractory pack member 50 are inserted into the through hole 7H in an integrated state has been described as an example. However, without being limited to such a configuration, for example, the mounting base 2 and the refractory pack member 50 may be sequentially inserted into the through-hole 7H while being separated from each other. In this case, for example, as shown in FIG. 11, the mounting base 2 may include only the flange 20. That is, the holder 1 may be configured to include the mounting base 2 including the flange portion 20 and the plate-shaped pressing portion 4 connected to the mounting base 2.

(10) In the above embodiment, the object 5 to be held by the holder 1 includes the flexible bag body 51 and the paste-like heat-expandable refractory material 53 sealed inside the bag body 51. The configuration that is the pack member 50 has been described as an example. However, without being limited to such a configuration, the holding object 5 may be, for example, a closing member (through-hole closing member) for simply filling the through-hole 7H. In this case, the closing member as the holding object 5 may be configured to include, for example, a bag body 51 and a non-fire-resistant filler such as a fiber material or a putty material sealed inside the bag body 51. good. Alternatively, the closing member as the holding object 5 is formed of a filler made of a fiber material having a certain shape and also having flexibility (for example, an inorganic fiber material such as rock wool, ceramic wool, and glass wool). Is also good.

(11) The configuration disclosed in each of the above-described embodiments (including the above-described embodiment and other embodiments; the same applies hereinafter) is applied in combination with the configuration disclosed in the other embodiment unless there is a contradiction. It is also possible. Regarding other configurations, the embodiments disclosed in the present specification are exemplifications in all respects, and can be appropriately modified without departing from the spirit of the present disclosure.

REFERENCE SIGNS LIST 1 holder 2 mounting base 4 plate holder 5 holding target 7 partition 7H through hole 7p peripheral edge 20 flange 30 sleeve main body 30a first end 30b second end 30c connecting part 38 receiving part 42 concave groove 50 Fireproof pack member 100 Fire protection unit L axial direction

Claims (6)

A holding tool for holding and holding a holding object arranged in a through hole formed in a partition of a building in an axial direction of the through hole,
An attachment base attached to a peripheral portion of the through hole in the partition,
A plate-shaped holding portion configured of a plate-like body connected to the mounting base, extending at least in the radial direction of the through-hole, and holding the object to be held in an intersecting posture with respect to the object to be held;
A holder comprising:   2. The holder according to claim 1, wherein the plate-shaped pressing portion is configured to be capable of holding the object to be held by elastic restoring force in a state in which the plate-shaped pressing portion is flexibly deformed and is in surface contact with the object to be held.   The holder according to claim 2, wherein a plurality of concave grooves extending parallel to each other in a direction perpendicular to an axial direction of the through hole are provided in the plate-shaped pressing portion.   The plate-shaped holding portion is integrally connected to the mounting base, and a connection portion between the mounting base and the mounting portion is used as a fulcrum, and a posture along a circumferential direction of the through-hole and a diameter of the through-hole. The holder according to any one of claims 1 to 3, wherein a posture can be changed between the posture along the direction. The mounting base includes a flange attached to the partition, and a sleeve body integrated with the flange at a first end and inserted into the through-hole,
5. The sleeve body according to claim 1, wherein the sleeve body and the object to be held are integrated at a second end of the sleeve body opposite to the first end. 6. Holder.   The receiving part which receives and supports the said holding object from the said 2nd end side further than the integrated part of the said sleeve main body part and the said holding object is provided in the said sleeve main body part, The Claim 5 characterized by the above-mentioned. Holding tool.

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