JP6319873B2 - shutter - Google Patents

Description

  The present invention relates to a shutter provided with a shutter box that houses a rollable door on an upper frame of a frame provided in a building opening, and in particular, a shutter with improved fire resistance at an end of a lower frame constituting the frame. About.

  A shutter provided with a shutter box that houses a rollable door on the upper frame of the frame may be provided at the opening of the building. The door body of the shutter is formed by connecting a plurality of slats in the vertical direction, and a baseboard member is provided at the lower end portion along the width direction of the door body. An example of such a shutter is disclosed in Patent Document 1.

JP 2010-163740 A

  In the shutter, high fire resistance may be required. There are cases where a fire occurs on the indoor side of the shutter and an outdoor side. In either case, it is required that the indoor and outdoor shielding state by the shutter be maintained. In the event of a fire, maintaining the closed state even when the door is exposed to high temperatures is necessary to ensure fire resistance. Since the door is made of steel, it can basically be kept closed even in the event of a fire.

  The lower frame constituting the shutter is formed with a recess for receiving the lower end portion of the skirting member provided on the door body. In order to prevent the resin parts from dropping into the recesses during a fire and becoming high temperature and igniting, the baseboard member is provided with a heating foam material along the longitudinal direction so as to face the recesses. The heated foam material is formed into a sheet shape and is made of a material that expands and increases in volume when the temperature exceeds a predetermined temperature. The heated foam material provided on the baseboard member closes the concave portion of the lower frame in the event of a fire. be able to.

  In the shutter, guide rail members are arranged on both side portions of the lower frame, and both side portions of the door body are guided by concave guide rails formed on the guide rail members. Moreover, the contact member for relieving the collision with the shutter box at the time of making a door body into a full open state is provided in the both ends of a door body. In order not to interfere with the contact member, the baseboard member is not disposed in the vicinity of both end portions of the concave portion of the lower frame, and the heating foam material cannot be disposed. Moreover, the heating foam was not provided also about the area | region of the edge part side of a lower frame rather than the edge part of a door body. Therefore, the concave portion cannot be closed at the end portion in the direction of finding the lower frame in the event of a fire, and a fireproof structure in this region is required.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a shutter provided with a fireproof structure at an end portion of the lower frame in the direction of finding.

In order to solve the above-mentioned problem, a shutter according to the invention of claim 1 has a frame formed by framing an upper frame, a lower frame, and left and right vertical frames, and the upper frame supports the door body and rolls up. In a shutter with a retractable shutter box,
The door body has a base plate member at a lower end portion, and the lower frame has a recess along the longitudinal direction in which the lower end portion of the base plate member can be accommodated, and is heated and foamed at an end portion of the recess in the direction of finding. The material is placed,
Resin contact members are provided at the lower left and right end portions of the door body, and the heating foam has a side surface portion disposed on the indoor side surface of the recess, and the side surface is in the fully closed state of the door body. The part faces the contact member ,
A heating foam material facing the recess is disposed along the longitudinal direction of the baseboard member, and one end portion of the heating foam material disposed in the recess is at least of the heating foam material disposed in the baseboard member. Facing the end,
The other end portion of the heating foam material disposed in the recess is in contact with the lower portion of a guide rail member that guides the door body .

According to the first aspect of the present invention, in the event of a fire, the recess can be filled with the heating foam material at the end of the lower frame in the direction of finding. In addition, when a fire occurs, the recessed portion can be filled up to the end portion in the direction of finding the lower frame by the heating foam material disposed in the recessed portion.

According to a second aspect of the present invention, there is provided a shutter box comprising a frame body formed by framing an upper frame, a lower frame, and left and right vertical frames. The upper frame supports a door body and can be rolled up and stored. In a shutter having
The door body has a base plate member at a lower end portion, and the lower frame has a recess along the longitudinal direction in which the lower end portion of the base plate member can be accommodated, and is heated and foamed at an end portion of the recess in the direction of finding. The material is placed,
Resin contact members are provided at the lower left and right end portions of the door body, and the heating foam has a side surface portion disposed on the indoor side surface of the recess, and the side surface is in the fully closed state of the door body. The part faces the contact member,
The heating foam material disposed in the concave portion has a bottom surface portion disposed on the bottom wall of the concave portion and a side surface portion disposed on at least the indoor side of the concave portion, and the side surface portion with respect to the lower frame It is constituted by being locked .

According to the second aspect of the present invention, the heating foam can be easily attached to the lower frame , and the heating foam can be foamed from two directions to the recess, so that the recess is filled with higher density. can do.

Further, in the shutter according to the invention of claim 3, the heating foam material disposed in the recess has the side surface held by a metal holder member, and the holder member is engaged with the lower frame. It is configured as characterized by that.

According to the invention which concerns on Claim 3, a side part can be reliably latched with respect to a lower frame, and it can prevent that the position of a heating foam material shifts | deviates after attachment.

  According to the shutter according to the present invention, since the concave portion can be protected at the end portion in the direction of finding the lower frame when a fire occurs, it is possible to improve the fire resistance of the entire lower frame including the area where the baseboard member is not disposed. .

It is a longitudinal cross-sectional view of the shutter in this embodiment. It is a cross-sectional view of the shutter in this embodiment. It is a lower enlarged view of FIG. It is a top view of the heating foam material arrange | positioned at a recessed part. It is a side view of the heating foam material arrange | positioned at a recessed part. FIG. 2 is an enlarged view of a lower part of FIG. 1 and shows a state when a heating foam material is attached. It is a top view of a lower frame. It is a lower enlarged view of FIG. 1 in the state at the time of a fire. It is a top view of the lower frame in the state at the time of a fire.

  Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal sectional view of the shutter in the present embodiment, and FIG. 2 is a transverse sectional view of the shutter in the present embodiment. As shown in each of these drawings, the shutter of the present embodiment includes an inner frame 4 and an outer frame 5 in a frame 1 that is formed by forming an upper frame 10, a lower frame 11, and left and right vertical frames 12, 12 in a rectangular shape. The upper frame 10 is provided with a shutter box 2 so that the door body 3 can be stored, and the door body 3 can be pulled out from the shutter box 2.

  The inner and outer children 4 and 5 have a panel body 7 made of a glass plate in a housing 6 in which an upper collar 30 and a lower collar 31 and left and right vertical collars 32 and 32 are assembled in a square shape. It is configured. The lower frame 11 constituting the frame 1 is formed with an inner rail portion 11a that guides the inner shoji 4 in the longitudinal direction and an outer rail portion 11b that guides the outer shoji 5 in the longitudinal direction. Further, the upper frame 10 constituting the frame body 1 includes an upper inner rail portion 10a for guiding the upper side of the inner shoji 4 in the longitudinal direction, and an upper outer rail portion 10b for guiding the upper side of the outer shoji 5 in the longitudinal direction. Is formed.

  The shutter box 2 has an upper surface portion 40, a lower surface portion 41, and left and right side surface portions 42, 42, and a winding shaft 20 is attached to the side surface member 18 constituting the side surface portion 42. The winding shaft 20 can wind the door body 3 formed by connecting a large number of slats 22 in the vertical direction, and is configured to be able to store the door body 3 in the shutter box 2. The door body 3 can be pulled out downward from an opening 21 formed in the lower part of the shutter box 2. FIG. 1 shows a state in which the door body 3 is pulled out and fully closed.

  The upper frame 10 having the shutter box 2 includes an upper member 15 that constitutes the upper surface portion 40 and a lower member 16 that constitutes the lower surface portion 41 and includes the upper inner rail portion 10a and the upper and outer rail portions 10b. The shutter box 2 further includes a side member 18 constituting the side portion 42, a cover member 17 constituting the outdoor side surface of the shutter box 2 from the upper member 15, and a back cover member 19 constituting the building housing side surface of the shutter box. Have.

  A guide rail member 13 that guides the left and right ends of the door body 3 in the vertical direction is provided on the outdoor side of the vertical frame 12. The guide rail member 13 includes a concave guide portion 13 a that swallows the left and right end portions of the door body 3.

  At the lower end portion of the door body 3, a skirting member 23 having a width over substantially the entire length between the guide rail members 13 is provided. The skirting member 23 has an integral handle portion 23b protruding in an inverted L shape on the outdoor side of the outdoor side wall 23a formed in a planar shape. As shown in FIG. 2, resin contact members 24, 24 are provided near the left and right ends of the lower end portion of the door body 3. The skirting member 23 is provided between the contact members 24 on both sides, and both end portions thereof are disposed closer to the center than the end portions of the door body 3.

  A groove-shaped recess 11 c that can accommodate the lower end of the baseboard member 31 is formed on the outdoor side of the lower frame 11. The recess 11c has an outdoor side surface 11e, a bottom surface 11f, and an indoor side surface 11g. By arranging the skirting member 23 at the lower end of the frame 1, the lower end of the skirting member 23 is accommodated in the recess 11 c and the outdoor side surface 11 e of the lower frame 11 constituting the recess 11 c is placed on the skirting member 23. Is in a state where the handle portion 23b is straddled.

  FIG. 3 shows a lower enlarged view of FIG. In this figure, the door body 3 including the skirting member 23 is omitted. As described above, a groove-like recess 11c that can accommodate the lower end of the baseboard member 23 is formed at the outdoor end of the lower frame 11. The recess 11c is formed over the entire length in the longitudinal direction of the lower frame 11, and the heating foam material 25 is disposed in the vicinity of the end portion in the direction of finding. The heating foam material 25 has a bottom surface portion 25a disposed on the bottom surface 11f of the concave portion 11c and a side surface portion 25b disposed on the indoor side surface 11g of the concave portion 11c, and from two directions with respect to the inside of the concave portion 11c. Facing.

  FIG. 4 is a plan view of the heating foam material 25 disposed in the recess 11c, and FIG. 5 is a side view of the heating foam material 25 disposed in the recess 11c. The heating foam material 25 is made of a material that foams and expands in the surface direction when exposed to a high temperature during a fire, and is formed in a sheet shape. The heating foam material 25 has the bottom surface portion 25a and the side surface portion 25b as described above, and the side surface portion 25b is formed to be longer in the longitudinal direction of the lower frame 11 than the bottom surface portion 25a. A part of the bottom surface portion 25a is an overlapping portion 25c in which two heating foam materials are stacked, and the thickness is larger than the other portions. Further, a metal holder member 26 is attached to the side surface portion 25b so as to cover the one surface side, so that a fixing strength when the heating foam material 25 is fixed to the lower frame 11 can be secured. .

  4 and 5 (a) show a state in which the heating foam material 25 is made flat, and FIG. 5 (b) shows a state in which the heating foam material 25 can be folded and attached to the lower frame 11. ing. Thus, although the heating foam material 25 is formed in planar shape, it can be made to adapt to the shape of the recessed part 11c by folding so that the side part 25b may stand up from the bottom face part 25a.

  FIG. 6 is a lower enlarged view of FIG. 1 and shows a state when the heating foam material 25 is attached. The heating foam material 25 is attached after the frame body 1 is fixed to the building frame during construction of the shutter. Since the heating foam material 25 is packed in a state as shown in FIG. 5A, it is folded as shown in FIG. 5B, and the tip of the side surface portion 25b is formed into the recess 11c as shown in FIG. Is inserted and locked to a hook-shaped locking projection 11d formed on the indoor side surface 11g and opening downward, and then the outdoor end of the bottom surface 25a is connected to the outdoor surface 11e of the recess 11c. Thus, the heated foam material 25 can be fixed to the lower frame 11.

  FIG. 7 shows a plan view of the lower frame 11. In FIG. 7, the guide rail member 13 and the door body 3 are represented by broken lines. As shown in FIG. 1, the baseboard member 23 provided in the door body 3 is provided with a heating foam material 27 along the longitudinal direction on the side facing the indoor side. Since the heating foam material 27 faces the indoor side surface 11g of the recess 11c when the door body 3 is in the fully closed state, it can foam and close the recess 11c when a fire occurs. However, as shown in FIG. 7, a resin contact member 24 is provided near the end of the door body 3, and no heating foam material is provided in this region.

  The heating foam material 25 provided in the recess 11 c of the lower frame 11 has a bottom surface portion 25 a that is disposed closer to the end of the lower frame 11 than the contact member 24 provided in the door body 3. Of the bottom surface portion 25 a, the overlapping portion 25 c is in contact with the lower portion of the guide rail member 13. Further, the side surface portion 25 b of the heating foam material 25 extends to the center side in the direction of finding the lower frame 11 than the bottom surface portion 25 a, faces the contact member 24, and its tip portion finds the baseboard member 23. It arrange | positions in a direction edge part position, and opposes the edge part of the heating foam material 27 provided in the baseboard member 23. FIG. In addition, the front-end | tip part of the side part 25b of the heating foam material 25 should just extend to the edge part vicinity of the heating foam material 27 provided in the baseboard member 23, and does not necessarily need to oppose the baseboard member 23. FIG. . Thereby, the side surface part 25b of the heating foam material 25 is arrange | positioned about the area | region where the contact member 24 near the edge part in which the heating foam material 27 is not provided in the base board member 23 is provided. Although FIG. 7 shows one end portion of the lower frame 11, the other end portion of the lower frame 11 is configured similarly.

  FIG. 8 shows an enlarged view of the lower part of FIG. 1 in a fire state. When a fire occurs and the shutter is exposed to a high temperature, the heated foam material 25 disposed in the recess 11c foams and expands in volume, fills the space at the end of the recess 11c in the direction of finding, and lower frame. The gap between 11 and the door body 3 is also closed. The heating foam material 25 has a bottom surface portion 25a and a side surface portion 25b, and in the region near the end portion of the lower frame 11 having both of them, foaming is performed from two directions, so that the concave portion 11c is denser. The space can be filled. Even in the central region of the lower frame 11 having only the side surface portion 25b, the foamed heating foam 25 can fill the recess portion 11c because the side surface portion 25b faces the inside of the recess portion 11c.

  In FIG. 9, the top view of the lower frame 11 in the state at the time of a fire is shown. As shown in this figure, the baseboard member 23 is provided with a heating foam material 27 so as to face the concave portion 11c along the longitudinal direction except for the region of the contact member 24 provided in the vicinity of the end portion. In the event of a fire, this foams to fill the space in the recess 11c. The heating foam material 27 of the baseboard member 23 does not reach the region of the recess 11c that is closer to the end of the lower frame 11 than the contact member 24, but this is filled with the heating foam material 25 provided in the recess 11c. The Since the central end of the lower frame 11 on the heating foam 25 provided in the recess 11c extends to the vicinity of the end of the heating foam 27 disposed on the baseboard member 23, the recess formed by the heating foam 25, 27 is provided. The filling of 11c can be continuous along the longitudinal direction.

  Thus, by arranging the heating foam material 25 at the end of the recess 11c of the lower frame 11, the recess 11c can be filled not only in the area of the baseboard member 23 but also in the vicinity of the end. Generation | occurrence | production of the clearance gap in the lower frame 11 and the ignition by the resin material falling to the recessed part 11c can be suppressed. In particular, one end portion of the heating foam material 25 is disposed in the vicinity of the end portion of the heating foam material 27 provided on the baseboard member 23, so that the concave portion 11c can be continuously filled in the longitudinal direction. Fire resistance can be further improved.

  The heating foam material 25 includes a bottom surface portion 25a and a side surface portion 25b, and a metal holder member 26 is attached to the side surface portion 25b, so that the heating foam material 25 is easily locked and fixed to the lower frame 11. The workability at the construction site can be improved.

  Although the embodiment of the present invention has been described above, the application of the present invention is not limited to this embodiment, and can be applied in various ways within the scope of its technical idea.

DESCRIPTION OF SYMBOLS 1 Frame body 2 Shutter box 3 Door body 4 Inner child 5 External obstacle 6 Housing 7 Panel body 10 Upper frame 11 Lower frame 11c Recessed part 11d Locking protrusion 12 Vertical frame 13 Guide rail member 20 Winding shaft 21 Opening part 22 Slat 23 skirting board member 24 hitting member 25 heating foam material 25a bottom surface portion 25b side surface portion 26 holder member 27 heating foam material

Claims (3)

In a shutter having a frame body formed by framing an upper frame, a lower frame, and left and right vertical frames, the upper frame supports a door body and has a shutter box that can be rolled up and stored.
The door body has a base plate member at a lower end portion, and the lower frame has a recess along the longitudinal direction in which the lower end portion of the base plate member can be accommodated, and is heated and foamed at an end portion of the recess in the direction of finding. The material is placed,
Resin contact members are provided at the lower left and right end portions of the door body, and the heating foam has a side surface portion disposed on the indoor side surface of the recess, and the side surface is in the fully closed state of the door body. The part faces the contact member ,
A heating foam material facing the recess is disposed along the longitudinal direction of the baseboard member, and one end portion of the heating foam material disposed in the recess is at least of the heating foam material disposed in the baseboard member. Facing the end,
The other end part of the heating foam material arrange | positioned at the said recessed part is in contact with the lower part of the guide rail member which guides the said door body, The shutter characterized by the above-mentioned. In a shutter having a frame body formed by framing an upper frame, a lower frame, and left and right vertical frames, the upper frame supports a door body and has a shutter box that can be rolled up and stored.
The door body has a base plate member at a lower end portion, and the lower frame has a recess along the longitudinal direction in which the lower end portion of the base plate member can be accommodated, and is heated and foamed at an end portion of the recess in the direction of finding. The material is placed,
Resin contact members are provided at the lower left and right end portions of the door body, and the heating foam has a side surface portion disposed on the indoor side surface of the recess, and the side surface is in the fully closed state of the door body. The part faces the contact member,
The heating foam material disposed in the concave portion has a bottom surface portion disposed on the bottom wall of the concave portion and a side surface portion disposed on at least the indoor side of the concave portion, and the side surface portion with respect to the lower frame A shutter characterized by being locked. The shutter according to claim 2, wherein the heating foam material disposed in the recess is configured such that the side surface portion is held by a metal holder member, and the holder member is engaged with the lower frame. .

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