JP2005164186A - Fire damper device and outdoor hood having the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fire damper device and an outdoor hood that excel in maintainability, enable low die investment and the like and are easy to install from both an indoor side and an outdoor side. <P>SOLUTION: The fire damper device comprises a damper frame 5 having a cylindrical part adapted to be positioned in a wall opening 3 cut in a wall surface 2 of a building and provided with openings at both ends to form a ventilation flue A, and having a pivot 6 inside across the ventilation flue A, dampers 7 substantially symmetrically turnable on the pivot 6 so as to close the ventilation flue A when opened, a heat-melting temperature fuse 9 for holding the dampers 7 in a position to open the ventilation flue A, and a plurality of mounting legs 10 projected from one end of the damper frame 5. The structure is simple, excels in maintainability and enables low die investment and the like. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a fire damper device attached to a portion that penetrates a fire prevention section for preventing fire burning and the like, for example, a ventilation duct that penetrates an outer wall, and an outdoor hood provided with the same.

  Conventionally, this type of fire damper device and outdoor hood are known to be arranged so that a donut-shaped flange having a fire damper device is connected to a duct so that an integral cylindrical tube portion is in circumferential contact. (For example, refer to Patent Document 1).

  Hereinafter, the fireproof damper device will be described with reference to FIGS. 11 and 12.

  As shown in FIG. 11, generally, an opening 104 that opens from an indoor 102 to an outdoor 103 is provided on an outer wall 101, and a round or square duct 105 is fixedly disposed through the duct 105. A path 106 is formed. An outdoor hood 107 is arranged on the outdoor side of the ventilation path 106, and a duct is formed so that a donut-shaped flange 109 having a fire damper device 108 provided on the outdoor hood 107 and an integral cylindrical cylindrical portion 110 are in contact with each other. 105, and a ventilation device 111 is provided in the room as needed. When the outdoor hood 107 is constructed, the cylindrical portion 110 is inserted from the outdoor 103 so as to be in contact with the duct 105 in the outer wall 101, and the retaining wall 112 fixed to the cylindrical portion 110 is attached to the outer wall 101. It is configured to be installed. In addition, the structure is such that the outer wall 101 is fixed with screws through a plurality of mounting holes 113 provided in the donut-shaped flange 109. The outdoor hood 107 is fixed to a plurality of mounting holes 114 provided in the donut-shaped flange 109 with screws.

  Further, as another fire damper device, an outdoor hood 115 of a cold district specification having a duct outer diameter side connection type having no fire damper function has been known (see, for example, Patent Document 2).

As shown in FIG. 12, the outdoor hood 115 is connected to the outer diameter side of the duct, and the intermediate mounting fire-proof damper 116 is separately attached to the ventilation path 106 of the duct 117.
Japanese Patent Laid-Open No. 10-306932 JP 2003-202143 A

  In such a conventional fireproof damper device 108, a donut-shaped flange 109 attached around the opening end of the outdoor side opening 118, and a cylindrical tube part 110 inserted into the ventilation path 106 from the outdoor side opening 118. An integral duct connection frame 119 is required, and the shape thereof has a flange-shaped portion corresponding to the shape of the hood, such as a round shape, a deep shape, and a square shape, and a cylindrical tube portion of an integrated throttle shape. In such a configuration, each duct connection frame 119 is required according to the hood shape of the outdoor hood 107 provided on the outdoor side opening 118 side. There was a problem that the cost was very high.

  Similarly to the outdoor hood 107, the mounting to the wall surface 101 is limited to the mounting from one direction from the outdoor opening 118, and the replacement of the thermal fuse 120 and the maintenance of the fire damper device 108 can be performed only from the outdoor side. There was a problem that it was not possible.

  Further, in order to fix the fire damper device 108, a plurality of portions are provided around the duct 105 side of the integral duct connection frame 119 including the cylindrical tube portion 110 inserted into the ventilation path 106 from the outdoor side opening 118. It was necessary to provide the individual stoppers 112.

  Further, as shown in FIG. 11, the outdoor hood 107 is screwed into a plurality of mounting holes 114 provided in the donut-shaped flange 109 through a plurality of mounting holes provided in the flange portion 121 of the outdoor hood 107. However, it is not preferable from the viewpoint of aesthetics, and further, it is an outdoor work at a high place, and screwing using a screwdriver has a problem that workability is not good.

  Moreover, in the outdoor hood 115 of a cold district specification, as shown in FIG. 12, a seal packing 122 is provided so as to be tightly fitted to the outer periphery of the opening of the duct 117 protruding from the outdoor side opening 118 by a predetermined length. If a fire-proof damper device is required in the case where it is configured to prevent the condensed water discharged from the duct 117 from flowing back to the outer wall side, an optional intermediate fire-proof damper 116 is installed on the indoor side behind the outdoor hood 115. It was necessary to install it separately in the close ventilation path 106.

  The present invention solves such conventional problems, and by simplifying the configuration, it is excellent in maintainability, can reduce mold investment, material costs, and the number of parts, and can be used for outdoor hoods and indoor ventilation. A fireproof damper device and outdoor hood that can be attached to the grill, can be easily installed from either the indoor side or the outdoor side, and can also function effectively for outdoor hoods that connect the outside of the duct in cold weather specifications. It is intended to provide.

  In order to achieve the above object, the fire damper apparatus of the present invention is housed in a wall surface opening provided on a wall surface of a building, and has a damper frame having a cylindrical portion that forms an air passage by providing openings at both ends, A damper provided to close the ventilation path when opened, a thermal melting temperature fuse that holds the damper in a state in which the ventilation path is opened, and a plurality of protrusions provided on one end side of the damper frame And a mounting leg.

  A damper frame frame that is housed in a wall surface opening provided in the building and has a cylindrical portion in which openings are provided at both ends to form a ventilation path, and the ventilation path is traversed inside the damper frame frame. A support shaft provided on the support shaft, two dampers provided substantially symmetrically with respect to the support shaft, and a spring that constantly spreads the two dampers and urges them in a direction to block the ventilation path. A fire-proof damper device comprising a heat-melting type thermal fuse that holds the damper against the spring, and extends from one end side of the damper frame frame, and is fixedly held on the inner wall or outer wall of the building A plurality of mounting legs are provided.

  The mounting legs are fixed to the wall of the building.

  Further, when the damper frame frame is inserted into the wall surface opening from the other end side of the damper frame frame, the end of the mounting leg provided on one end side of the damper frame frame abuts the periphery of the wall surface opening. It is fixed to the wall of the building.

  Moreover, when the damper frame frame is housed in the wall surface opening, there is provided attachment means that is pressed and attached from the inside of the wall surface opening.

  Also, the mounting leg itself is elastically deformed and pressed and fixed inside the wall surface opening.

  The mounting leg is provided with a mounting portion for attaching an outdoor hood or a grill for indoor ventilation.

  Also, the outdoor hood or the indoor ventilation grill is fitted and attached by elastically deforming the mounting portion of the mounting leg.

  The outdoor hood of the present invention is provided with the above-described fire damper device.

  Moreover, the outdoor hood of this invention fixes the outdoor hood frame fixed to the outer wall of a building so that it may be pinched | interposed by an attachment leg and an outer wall surface.

  According to the present invention, by simplifying the configuration, it is excellent in maintainability, the mold investment, the material cost, the number of parts can be reduced, and the outdoor hood and the indoor ventilation grill can be attached. It is possible to provide a fireproof damper device and an outdoor hood that can be easily attached from both the outside and further function effectively in an outdoor hood that connects the outside of the duct in a cold district specification.

  According to the present invention, it is possible to provide a fireproof damper device and an outdoor hood that are excellent in maintainability, can reduce mold investment, material costs, and the number of parts, and can be easily attached from either the indoor side or the outdoor side. .

  The invention of the fire-proof damper device according to claim 1 of the present invention includes a damper frame frame that is housed in a wall surface opening provided on a wall surface of a building, and that has a cylindrical portion that forms an air passage by providing openings at both ends. A damper provided so as to close the ventilation path when opened, a thermal melting temperature fuse that holds the damper in a state in which the ventilation path is opened, and a plurality of protrusions that project from one end of the damper frame With the mounting leg, it is possible to fix and hold the fire damper device on the outer wall or the interior wall by the mounting leg protruding from one end of the damper frame, and the mounting leg can be configured separately from the hood. It is possible to reduce mold costs such as drawing and reduce manufacturing costs. In addition, installation to the wall surface can be performed from either the indoor side or the outdoor side according to the ventilation plan, and maintenance such as replacement can be improved. Moreover, since a plurality of mounting legs can be formed in the same shape, the investment in the mold can be greatly increased.

  According to a second aspect of the present invention, there is provided a damper frame having a cylindrical portion which is housed in a wall surface opening provided in a building and has a cylindrical portion in which openings are provided at both ends to form a ventilation path. A support shaft provided so as to cross the ventilation path inside the damper frame frame, two dampers provided substantially symmetrically with respect to the support shaft, and the two dampers are always spread out, A spring that urges the air passage in a direction to block the ventilation path, and a hot-melt type thermal fuse that holds the damper against the spring and extends from one end side of the damper frame frame. In addition, since a plurality of mounting legs that are fixedly held on the inner wall or the outer wall of the building are provided, a plurality of mounting legs having a common shape that can be fixedly held on the outer wall are extended to the damper frame frame regardless of the shape of the hood. The installation eliminates the need for individual investment in manufacturing, reduces manufacturing costs, and can be mounted on the wall from either the indoor side or the outdoor side, depending on the ventilation plan. It has the effect | action that a property can also be improved.

  In the invention according to claim 3, since the mounting leg is fixed to the wall surface of the building in the fire damper apparatus according to claim 1 or 2, the flange portion for mounting to the wall surface is provided on the damper frame frame. There is no need to provide it, and the investment cost of the mold can be reduced.

  According to a fourth aspect of the present invention, in the fire damper device according to the third aspect, when the damper frame frame is inserted into the wall surface opening from the other end side of the damper frame frame, one end of the damper frame frame is provided. Since the end of the mounting leg provided on the side abuts the periphery of the wall opening and is fixed to the wall of the building, a flange portion for mounting the damper frame on the wall with a simple configuration is provided. The same effect as that provided can be achieved.

  According to a fifth aspect of the present invention, the fireproof damper device according to any one of the first to fourth aspects is provided by pressing from the inside of the wall surface opening when the damper frame is housed in the wall surface opening. By providing the attachment means to be worn, it is possible to improve the installation workability and replacement maintenance performance of the fire damper device.

  Further, the invention according to claim 6 includes a plurality of the fireproof damper devices according to any one of claims 1 to 4 by elastically deforming the mounting legs themselves and pressing them to the inside of the wall surface openings. There is no need to separately provide individual retaining brackets, and it has the effect of being able to be attached to the inner diameter side of the duct with a simpler structure.

  According to a seventh aspect of the present invention, there is provided the fireproof damper device according to any one of the first to sixth aspects, wherein a mounting portion for attaching an outdoor hood or a grill for indoor ventilation is provided on the mounting leg. In addition to being able to be installed from both inside and outside the wall, the outdoor hood or the indoor ventilation grill can be arbitrarily attached to the fire-proof damper device. Have

  The invention according to claim 8 can be screwed to the fireproof damper device according to claim 7 by fitting and attaching an outdoor hood or an indoor ventilation grille by elastically deforming the mounting portion of the mounting leg. It is unnecessary and neatly aesthetically pleasing. Further, even when working outdoors at high places, there is no need for screwing with a tool, so workability is improved.

  Moreover, invention of the outdoor hood of Claim 9 will obtain the outdoor hood with high installation workability and maintenance property by providing the fireproof damper apparatus in any one of Claims 1-8. .

  The invention according to claim 10 is a cold district specification by fixing the outdoor hood according to claim 9 so that the outdoor hood frame fixed to the outer wall of the building is sandwiched between the mounting leg and the outer wall surface. In the case of outdoor hoods connected to the outer diameter side of the duct, conventionally, it was necessary to install an intermediate mounting fireproof damper separately in the duct air passage, but an outdoor hood with a fireproof damper with mounting legs is prepared as one It is possible to provide an outdoor hood that effectively functions as a fire prevention equipment regardless of the method of connecting the outer diameter side of the duct.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIGS. 1 and 2, the fire damper apparatus 1 of the present invention has a main configuration as follows.
A damper frame 5 having a cylindrical portion that is housed in a wall surface opening 3 provided on the wall surface of the building and has openings at both ends to form a ventilation path A, and the ventilation path A is closed when opened. Provided with a damper 7, a thermal melting type thermal fuse 9 that holds the damper 7 in a state in which the air passage A is opened, and a plurality of mounting legs 10 that project from one end of the damper frame 5. Yes.

  Further, a support shaft 6 is provided inside the damper frame 5 so as to cross the ventilation path A, and two dampers 7 are provided so as to be rotatable substantially symmetrically with respect to the support shaft 6. The heat that keeps the two dampers 7 overlapped with each other while keeping a certain distance between the two dampers 7 against the spring 8 that constantly pushes the two dampers 7 and biases them in the direction of blocking the ventilation path. The fire-proof damper is constructed so as to be assembled and self-supporting with a molten temperature fuse 9, and a plurality of mounting legs 10 are provided so as to extend from one end side of the damper frame 5 and be fixed and held on the wall surface 2 or the inner wall surface of the building. ing.

  Further, the mounting leg 10 is attached to the mounting portion 13 of the mounting leg 10 from the outer wall surface opening side 11 or the inner wall surface opening side 12 on the inner diameter side of the duct 4 which is fixed by penetrating through the wall surface opening 3 of the mounting leg 10. When the fire-resistant damper device 1 is inserted and stored to a certain depth reaching the depth, the mounting means 14 is pressed and attached along the inside of the duct 4.

  And when the duct 4 is inserted in the wall surface opening part 3 opened to the wall surface 2 so that the outdoor side 15 and the indoor side 16 of the building may be communicated, and the fire damper apparatus 1 is attached to the wall surface 2 and the duct 4 Is inserted from the side where the mounting leg 10 of the damper frame 5 does not project from the outdoor side 15, and the mounting part 13 provided at the end of the mounting leg 10 of the damper frame 5 is connected to the periphery of the wall surface opening 3. The fire-proof damper device 1 is fixed to the duct 4 by the attaching means 14 that is pressed along the inner diameter side of the duct 4 provided on the attachment leg 10.

  Further, as shown in FIG. 2, a screwing hole 17 is provided in the end portion of the mounting leg 10 as another mounting means and abuts on the periphery of the wall surface opening portion 3 so as to be screwed to the wall surface 2. A fixed structure is adopted.

  In the above configuration, a fire from the outdoor side 15 or the indoor side 16 of the building causes fire or heat to be applied to the fire damper device 1 provided in the wall surface opening 3 that penetrates the wall surface 2 that forms the fire prevention structure of the building. In this case, when the hot-melt type thermal fuse 9 exposed to direct fire or heat reaches the melting temperature, it is melted hot, and the two dampers 7 are always expanded to attach the air passage A in a direction to be shut off. Due to the action of the spring 8, the damper 7 is pushed up to a position where it abuts against the damper frame 5, the ventilation path A is blocked, and the fire and heat from the fire from the indoor side 16 or the outdoor side 15 of the building It is an effective fire prevention facility for preventing the spread of fire in the building being cut off.

  In addition, the fire-proof damper device 1 is provided with a mounting leg 10 which is a plurality of strip-shaped plate members having a common shape extending from one end side of the damper frame 5. The integrated diaphragm type duct connection frame corresponding to the shape, square shape, etc. is no longer necessary, and the multiple folded plate-like mounting legs 10 with a common shape need only be produced by bending a strip-like plate material. No investment is required, and the manufacturing cost can be reduced with a minimum amount of material for fixing the fire damper device 1 to the duct 4 or the wall surface 2, so that parts can be used in common and light and compact.

  As described above, according to the fire damper apparatus according to the first embodiment of the present invention, the fire damper apparatus 1 housed in the wall surface opening 3 penetrating the building due to the fire from the outdoor side 15 or the indoor side 16 of the building. The fire-proof damper device 1 is provided with a plurality of mounting legs 10 that extend from one end side of the damper frame 5 and can be fixedly held on the inner and outer walls of the building when the heat is applied to the fire-proof damper device 1. In the past, a single-drawer-type duct connection frame corresponding to the shape of the hood, such as a round shape, a deep shape, and a square shape, was individually required. It can be manufactured in a process that only bends at an angle, and the material cost can be reduced with the minimum amount of materials required to fix the fire damper device 1 to the duct 4 or the wall surface 2, and there is no investment in individual molds depending on the hood shape. Next, along with common parts can be achieved, lightweight compact, and fire blocking the fire heat by the outdoor side 15 or the indoor side 16, may be a building on fire expansion preventing effective fire protection equipment.

  Further, since the mounting leg 10 is fixed to the wall surface 2 of the building, there is an effect that it is not necessary to provide the damper frame 5 with a flange portion for mounting to the wall surface 2.

  In addition, when the damper frame 5 is inserted into the wall surface opening 3 from the other end side of the damper frame 5, the end of the mounting leg 10 provided on one end side of the damper frame 5 is the wall opening 3. By abutting on the periphery and being fixed to the wall surface 2 of the building, it is possible to obtain the same effect as that of providing a flange portion for attaching the damper frame 5 to the wall surface 2 with a simple configuration.

  Further, by providing the attachment means 14 that is pressed and attached from the inside of the wall surface opening 3 when the damper frame 5 is housed in the wall surface opening 3, the installation workability and replacement of the fire damper device 1 are improved. Maintainability can be improved.

(Embodiment 2)
As shown in FIGS. 3 to 5, an elongated hood-like plate material is bent, and at the end of a plurality of mounting legs 10 extending vertically or horizontally from one end of the damper frame 5, an outdoor hood 18 or an indoor In order to mount the ventilation grill 19, the mounting portion 13 is provided so as to extend outward at a certain angle and length. Other configurations are the same as those in the first embodiment, and a description thereof will be omitted.

  In addition, a plurality of mounting legs 10 that can mount the outdoor hood 18 or the indoor ventilation grill 19 on the fireproof damper device 1 are provided, and the mounting portions 13 of the plurality of mounting legs 10 are the outdoor hood 18. Alternatively, it extends outward at a certain angle and length along the shape of the indoor ventilation grill 19, and includes a screw fixing hole 21 for attaching the outdoor hood 18 or the indoor ventilation grill 19. The grille 19 is provided with a screw hole 22 in a portion corresponding to 21 in the screw fixing hole of the mounting portion 13, and is fixed to the mounting portions 13 of the plurality of mounting legs 10 by screws. When the hot-melt type thermal fuse 9 is replaced, it is possible to remove the screw, remove the outdoor hood 18 or the indoor ventilation grill 19, and replace the hot-melt type thermal fuse 9.

  After the heat melting type thermal fuse 9 is replaced, the outdoor hood 18 or the indoor ventilation grille 19 is connected to the outdoor hood 18 or the indoor ventilation grille 19 provided on the plurality of mounting legs 10 through the screw holes 22. By attaching to the screw fixing hole 21, the attachment of the outdoor hood 18 or the indoor ventilation grill 19 to the building is completed.

  Further, as shown in FIG. 3, in the case of corresponding to a deep-shaped outdoor hood or the like, if the screw fixing holes of the plurality of mounting legs 10 do not have a concentric mounting pitch, a part of the plurality of mounting legs 10 is provided. Is longer than the other mounting legs 10.

  In addition, as shown in FIG. 5, a convex piece 23 for hooking the outdoor hood 18 or the indoor ventilation grill 19 upward is provided on one side of one mounting portion 13 of the plurality of mounting legs 10. The mounting leg 10 on the other side is provided with the screw fixing hole 21 so that the convex piece 23 is hooked on the engaging portion formed in the outdoor hood 18 or the indoor ventilation grill 19 and then the other mounting leg 10 is mounted. The fire damper apparatus 1 can be fixed to the outdoor hood 18 or the indoor ventilation grill 19 by screwing.

  As described above, according to the fire damper apparatus 1 of the second embodiment of the present invention, the mounting portions 13 are attached to the plurality of mounting legs 10 so that the outdoor hood 18 or the indoor ventilation grill 19 can be attached to the fire damper apparatus 1. The mounting portion 13 extends outward at a certain angle and length along the shape of the outdoor hood 18 or the indoor ventilation grill 19, and the screw fixing hole 21 for attaching the outdoor hood 18 or the indoor ventilation grill 19. Therefore, it is possible to attach the outdoor hood 18 or the indoor ventilation grill 19 to the mounting leg 10, and the mounting can be freely performed according to the plan regardless of the inside or outside of the wall surface 2. For example, maintenance of the fireproof damper device 1 when it is mounted from the outer wall side of a high-rise house is usually performed from the outdoor side 15 after the outdoor hood 18 is removed. There is a problem that it cannot be done without building a scaffold. On the other hand, maintenance of the fire damper apparatus 1 fitted with the indoor ventilation grill 19 when attached to the wall surface 2 from the indoor side 16 can be performed from the indoor side 16 after the indoor ventilation grill 19 is removed, and the work is safe. And easy. On the other hand, if the fire damper device 1 is installed on the outside wall of the veranda side or the corridor side of the first floor part of a low-rise house or an apartment house, it is easy to install on both the indoor side and the outdoor side. The outdoor hood 18 or the indoor ventilation grill 19 can be freely attached to the damper device 1.

  Regardless of the shape of the hood, by providing a plurality of mounting legs 10 having a common shape on the damper frame 5, it is not necessary to individually invest in molds in manufacturing, manufacturing costs can be reduced, and the lightweight and compact wall surface 2 can be obtained. Can be installed both inside and outside. Further, the mounting and replacement of the thermal melting type thermal fuse 9 can be freely performed according to the plan regardless of the inside or outside of the wall surface 2, and the maintainability can be improved.

(Embodiment 3)
As shown in FIG. 6, the plurality of mounting legs 10 that are extended from one end side of the damper frame 5 up and down or left and right are made of an elongated spring plate material, and are fixed so that a force spreading outwards acts. A structure that is arranged with a spring property and presses and fixes the fire damper device 1 by pressing the inner diameter side 24 of the duct mounted in the wall surface opening 3 in a state where the plurality of mounting legs 10 are elastically deformed. It is a thing. Other configurations are the same as those in the first embodiment, and a description thereof will be omitted.

  When the fire damper device 1 is inserted into the inner diameter side 24 of the duct, a plurality of mounting legs 10 provided to extend to the damper opening / closing side of the damper frame 5 are fixed in close contact with the inner diameter side 24 of the duct. Each is arranged at intervals such that In addition, a duct having the same nominal diameter has a spring property that spreads outward so that it can be pressed and fixed to a duct having a different inner diameter regardless of the type of the duct, and the contact portion with the duct 4 slips. In order to make it difficult, for example, a part of the mounting leg 10 is cut and raised outward to have a pointed shape, and a fixed claw 25 is provided in which the contact with the duct is a point contact.

  As described above, according to the fire damper device of the third embodiment of the present invention, the elongated spring plate material is bent on the mounting leg 10 itself, and is elastically deformed so that the force spreading outward is applied and disposed in the wall opening. Therefore, it is not necessary to separately provide a plurality of conventional mounting means such as retaining metal fittings as separate parts, and the mounting leg 10 itself has a mounting function and can be mounted on the inner diameter side 24 of the duct with a simpler structure. It can be carried out.

(Embodiment 4)
As shown in FIGS. 7 and 8, the mounting portion 13 of the mounting leg 10 is elastically deformed so that the outdoor hood 18 or the indoor ventilation grill 19 is fitted and mounted. The mounting portion 13 of the mounting leg 10 is formed by bending an elongated spring plate material, and has a convex hook 26 at the tip thereof. When the outdoor hood 18 or the indoor ventilation grill 19 is pushed from the front, The outdoor hood 18 or the indoor ventilation grill 19 is attached by being elastically deformed so as to be accommodated in a concave mounting piece 27 provided on the hood 18 or the indoor ventilation grill 19. Other configurations are the same as those in the first embodiment, and a description thereof will be omitted.

  In addition, the outdoor hood 18 or the indoor ventilation grill 19 is attached to the attachment portions 13 of the plurality of mounting legs 10 of the fire prevention damper device 1 from the front of the fire damper device 1 so that the outdoor hood 18 or the indoor ventilation grill 19 can be attached and detached. A convex hook 26 that can be elastically deformed when pushed in is provided. On the other hand, the outdoor hood 18 or the indoor ventilation grill 19 is provided with a convex hook 26 provided on the mounting portion 13 of the mounting leg 10. A concave mounting piece 27 for hooking and fixing the convex hook 26 is provided at an opposite position, and the fire damper device 1 is inserted and fixed in the wall surface opening 3 and then attached to the mounting portion 13 of the mounting leg 10. The outdoor hood 18 or the indoor ventilation grill 19 is pushed from the front to be elastically deformed and fixed at a position opposite to the provided convex hook 26. And thus.

  As shown in FIG. 9, the attachment portions 13 of the plurality of attachment legs 10 are formed by bending an elongated spring plate material, and the outdoor hood 18 or the indoor ventilation grill 19 is pushed into the front end portion from the front. At that time, the hooks 26A that are split into two pieces and have a curl shape alternately are provided so that the round bars provided on the outdoor hood 18 or the indoor ventilation grill 19 bite into the U-shaped mounting pieces 27A. Even if the attachment means is changed depending on the configuration, the effect is the same.

  Thus, according to the fire damper apparatus 1 of Embodiment 4 of the present invention, when the outdoor hood 18 or the indoor ventilation grill (not shown) is pushed in from the front, the outdoor hood 18 or the indoor ventilation grill is provided. Since it is elastically deformed so that it fits in the concave mounting piece 27 and the outdoor hood 18 or the indoor ventilation grill (not shown) is attached, there is no need for screwing, and there is no need for screw heads. Furthermore, screwing work using a screwdriver is eliminated, and workability at high altitudes outdoors can be improved.

  In addition, when the product is shipped, even if the fire damper device 1 and the outdoor hood 18 or the indoor ventilation grill 19 are set products or separately sold products, they can be attached to the wall surface 2 while being set together at the construction site. In the case of an option, the outdoor hood 18 or the indoor ventilation grill 19 can be attached after the fire damper device 1 is first attached to the wall surface 2.

(Embodiment 5)
As shown in FIG. 10, an outdoor hood with a fire damper device in which a fire damper device 1 </ b> A housed in a wall surface opening 3 penetrating a building and an outdoor hood 18 </ b> A provided on an outer wall surface opening side 11 is configured as a set. Configure. That is, it consists of the fireproof damper device described in the first to fourth embodiments and the outdoor hood provided on the outer wall side.

  The outdoor hood frame 29, which is a member constituting the base of the outdoor hood 18A and is fixed to the outer wall, is provided so that the inner peripheral portion thereof is in close contact with the outer periphery of the duct 30B that is protruded by a predetermined length from the outdoor side opening. The outdoor hood frame 18A is sandwiched between the mounting leg 10B and the outer wall surface, and the outdoor hood frame 18A and the mounting leg 10B are screwed and fixed from the front side to the outer wall surface. To install.

  Further, in a cold region, in order to avoid frost damage on the wall surface, an outdoor hood having a configuration as shown in FIG. 10 may be used, unlike the conventional outdoor hood attached to a duct. When the fire damper apparatus 1A having the outdoor hood 18A and the plurality of mounting legs 10B is attached to the wall surface 2, the hood portion 34 positioned on the outdoor side of the outdoor hood 18A and the outdoor hood frame 29 positioned on the front surface on the wall surface side are removed. After that, the outdoor hood frame 29 is tightly inserted through the seal packing 31 provided integrally with the outdoor hood frame 29 on the outer peripheral side of the duct 30B protruding by a predetermined length from the outdoor side opening, and the wall surface 2 Temporarily fix to. Thereafter, the fire damper device 1A is inserted into the inner peripheral side of the duct 30B, the mounting leg 10B is positioned on the front side of the outdoor hood frame 29, and is sandwiched between the mounting leg 10B and the wall surface 2. The mounting leg 10 </ b> B and the outdoor hood frame 29 are both screwed to the wall surface 2 through the screwing holes of the same pitch provided in the mounting leg 10 </ b> B and the outdoor hood frame 29. Furthermore, the hood part 34 is fixed to the outdoor hood frame 29 with screws or the like, and the installation of the outdoor hood with a fireproof damper device is completed.

  As described above, according to the fire damper device of the fifth embodiment of the present invention, the outdoor hood frame 29 fixed to the outer wall of the outdoor hood 18A provided with the fire damper device 1A as a set is sandwiched between the outer wall surfaces and fire proof. Since the mounting leg 10B of the damper device 1A is fixed to the front side of the outdoor hood frame 29 with screws, an intermediate mounting fireproof damper sold separately conventionally used in areas where fire protection equipment is required is used. There is no need to prepare separately, and an outdoor hood with a dedicated fire-proof damper device can be provided.

  In addition, by using an outdoor hood with a fire damper device that is combined with the outdoor hood 18A in which the fire damper device 1A is incorporated, an open side of the outdoor hood due to a fire from the outdoor side 15 or the indoor side 16 of the building When a fire or heat is applied to the fire damper device 1A provided in the wall opening 3 that penetrates the wall 2 that forms the fire prevention structure of the building, a thermal melting type thermal fuse that is directly exposed to the fire or heat 9 is heated and melted, and the two dampers 7 are always pushed and spread, and the damper 7 is pushed to the position where it abuts against the damper frame 5 by the action of the spring 8 biased in the direction of blocking the ventilation path A. Ventilation path A will be blocked, and fire and heat from the fire from the indoor side 15 or the outdoor side 16 of the building can be cut off, which is effective in preventing the fire from spreading in the building. Outdoor food can be provided with bumpers apparatus.

  The present invention can be widely used for outdoor hoods and indoor ventilation grilles by having the mounting legs of the present invention even if the damper frame has no fire damper function.

Sectional drawing which shows the structure of the fireproof damper apparatus of Embodiment 1 of this invention The perspective view which shows the structure of the fireproof damper apparatus The perspective view which shows the structure in the case of attaching a deep hood to the fireproof damper apparatus of Embodiment 2 of this invention. The perspective view which shows the structure at the time of attaching the grill for indoor ventilation to the said fireproof damper apparatus The perspective view which shows the other structure at the time of attaching a deep hood to the fire prevention damper apparatus The perspective view which shows the structure of the fireproof damper apparatus of Embodiment 3 of this invention. Sectional drawing which shows the structure of the fireproof damper apparatus of Embodiment 4 of this invention Partial enlarged cross-sectional view of the fire damper device A perspective view showing other composition of the fireproof damper device Sectional drawing which shows the structure of the fireproof damper apparatus of Embodiment 5 of this invention Schematic sectional view showing a conventional fire damper device Schematic sectional view showing the fire damper device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fireproof damper apparatus 1A Fireproof damper apparatus 3 Wall surface opening part 5 Damper frame frame 6 Support shaft 7 Damper 8 Spring 9 Thermal fuse 10 Mounting leg 13 Mounting part 14 Mounting means 18 Outdoor hood 18A Outdoor hood 19 Indoor ventilation grill 29 Outdoor hood frame A Ventilation path

Claims (10)

A damper frame frame that is housed in a wall surface opening provided on the wall of the building and has a cylindrical portion that forms an air passage by providing openings at both ends, and a damper that is provided to close the air passage when opened. And a heat-melting type thermal fuse that holds the damper in a state in which the ventilation path is open, and a plurality of mounting legs that protrude from one end side of the damper frame. A damper frame frame that is housed in a wall surface opening provided in the building and has a cylindrical portion in which openings are provided at both ends to form a ventilation path, and provided inside the damper frame frame so as to cross the ventilation path. A support shaft, two dampers provided substantially symmetrically with respect to the support shaft, a spring that constantly spreads the two dampers and urges them in a direction to block the ventilation path, and A fire-proof damper device comprising a hot-melt type thermal fuse that holds the damper against a spring, and extends from one end side of the damper frame frame, and is fixedly held on the inner wall or outer wall of the building A fire-proof damper device comprising a mounting leg. The fireproof damper device according to claim 1 or 2, wherein the mounting leg is fixed to a wall surface of the building. When the damper frame frame is inserted into the wall surface opening from the other end side of the damper frame frame, the end of the mounting leg provided on one end side of the damper frame frame abuts the periphery of the wall opening. The fireproof damper device according to claim 3, wherein the fireproof damper device is fixed to a wall surface of the fireproof damper. The fireproof damper device according to any one of claims 1 to 4, further comprising attachment means that is pressed and attached from the inside of the wall surface opening when the damper frame is stored in the wall surface opening. . The fireproof damper device according to any one of claims 1 to 4, wherein the mounting leg itself is elastically deformed and pressed and fixed inside the wall surface opening. The fireproof damper device according to any one of claims 1 to 6, wherein a mounting portion for mounting an outdoor hood or a grill for indoor ventilation is provided on the mounting leg. 8. The fireproof damper device according to claim 7, wherein the mounting portion of the mounting leg is elastically deformed to fit and attach the outdoor hood or the indoor ventilation grill. The outdoor hood provided with the fire-resistant damper apparatus in any one of Claims 1-8. The outdoor hood according to claim 9, wherein the outdoor hood frame fixed to the outer wall of the building is fixed so as to be sandwiched between the mounting leg and the outer wall surface.

Images