Heating Foam Mounting Fixture and Fittings

Abstract

To provide a structure which can prevent a heat-foaming material from being detached from a frame material or an edge member, can attach a heat-foaming material to an existing fixture, and is less subject to limitations in an attachment position of a heat-foaming material.SOLUTION: A substantially U-shaped plate fitting part 41 forming a heat-foaming material attachment tool 40 is fitted to a lower projecting plate portion 22 provided at a lower frame 5 so as to surround a tip end portion of the lower projecting plate portion 22. Of a pair of arm portions 42, 43 extended in a direction of plate thickness of the lower projecting plate portion 22 so as to be apart from each other from an indoor side end portion of the fitting part 41, the one arm portion 42 presses a heat-foaming material 8a toward a fitted surface 20, and the other am portion 43 presses a pressed surface 25 through a heat-foaming material 8b.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a heat-expandable material attaching tool for attaching a heat-expandable material that foams by heating to a frame material that constitutes a rectangular frame body disposed at an opening of a building and a stile material that constitutes a door body built inside the frame body.

Background Art

[0002] In a fitting formed by building a door body such as a window shutter or a door inside a frame body such as a window frame or a door frame fixed to an opening of a building, during a fire, the gap between the frame body and the door body may become a passage for flames, hot air, etc. Therefore, conventionally, it has been considered to block the gap between the frame body and the door body using a heat-expandable material that foams (expands) by heating during a fire (see, for example, Japanese Utility Model Laid-Open No. 60-76942).

[0003] The heat-expandable material is generally configured in a plate shape (sheet shape) and is attached to the frame material that constitutes the frame body and the stile material that constitutes the door body by an adhesive tape, an adhesive, or the like. However, while the heat-expandable material generally begins to foam at about 200°C, the adhesive (including adhesives) used for the adhesive tape begins to melt at a lower temperature (for example, about 120°C). For this reason, the adhesive may melt before the heat-expandable material begins to foam, and the heat-expandable material may peel off from the predetermined attachment position.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In view of the above circumstances, for example, as shown in FIG. 14, a structure in which the heat-expandable material 100 is locked to a sheath-shaped concave groove 102 formed in the attachment member 101 that is a frame member or a surrounding member can be considered to replace pasting or used in combination with pasting. By adopting such a structure, it is possible to prevent the heat-expandable material 100 from falling off the attachment member 101 before foaming. However, for the structure in which the heat-expandable material 100 is locked to the concave groove 102, it is necessary that the attachment member 101 to which the heat-expandable material 100 is to be attached is provided with the concave groove 102 in advance. Therefore, when attaching the heat-expandable material to an existing fitting, it is difficult to adopt.

[0006] Therefore, it is conceivable to adopt a structure in which the heat-expandable material is directly fixed to the frame member or the surrounding member with screws. In this case, it is possible to prevent the heat-expandable material from falling off the frame member or the surrounding member before foaming, and it becomes possible to attach the heat-expandable material not only to a new fitting but also to an existing fitting. However, when the heat-expandable material is fixed using screws, a working space sufficient to perform the screwing operation using tools is required. For this reason, it becomes difficult to attach the heat-expandable material to a position where a working space sufficient to perform the screwing operation cannot be secured as the attachment position of the heat-expandable material. Thus, when the heat-expandable material is fixed using screws, it is likely to be restricted by the attachment position of the heat-expandable material.

[0007] In view of the above circumstances, the present invention has been invented to realize a structure of a heat-expandable material attachment tool that can prevent the heat-expandable material from falling off the frame member or the surrounding member before foaming, can attach the heat-expandable material not only to a new fitting but also to an existing fitting, and is less likely to be restricted by the attachment position of the heat-expandable material.

Means for Solving the Problems

[0008] The heat-expandable material attachment tool of the present invention is All of themIt is for attaching a plate-shaped heat-expandable material that expands at least in the plate thickness direction by heating to the mounting surface of a mounting member having a flat mounting surface and a projecting plate portion that is disposed adjacent to the mounting surface and projects in a direction substantially perpendicular to the mounting surface, the mounting member being at least one of a frame member constituting a rectangular frame body and a stile member constituting a door body built inside the frame body. The heat-expandable material fixture of the present invention includes a substantially U-shaped plate-like mounting portion attached to the projecting plate portion so as to surround at least the tip portion of the projecting plate portion, and an arm portion extending in the plate thickness direction of the projecting plate portion from an end portion located on the base end side of the projecting plate portion among the mounting portions. The arm portion presses the heat-expandable material against the mounting surface in the plate thickness direction of the heat-expandable material. The mounting portion has an engaging portion that engages with a part of the projecting plate portion to prevent the mounting portion from moving in the projecting direction of the projecting plate portion. Note that the projecting plate portion projecting in a direction substantially perpendicular to the mounting surface means not only a direction perpendicular to the mounting surface but also a case where it projects in a direction slightly inclined from the direction perpendicular to the mounting surface.

[0009] The heat-expandable material fixture according to the first aspect of the present invention is made of metal and has a dimension smaller than that of the heat-expandable material in the length direction of the heat-expandable material. In the heat-expandable material fixture according to one aspect of the present invention, the engaging portion can be constituted by a bent portion.

[0010] The Of the second and third aspects In the heat-expandable material fixture, the projecting plate portion constitutes a holding portion having a locking concave groove inside thereof Shi and an airtight piece is locked in the locking concave groove Ru.

[0011] The Of the second aspect In the heat-expandable material fixture, a part of the mounting portion is pressed against the side surface of the projecting plate portion by the airtight piece locked in the locking concave groove Ru.

[0012] The Of the third aspectIn the heating foam material fixture, a part of the attachment part is pressed against the end face of the protruding plate part by the airtight piece locked in the locking concave groove. Ru.

[0013] The first aspect of the fitting of the present invention includes a rectangular frame body, a door body built inside the frame body, a plate-shaped heating foam material that foams at least in the plate thickness direction by heating, at least one of the frame members constituting the frame body and the sash members constituting the door body, and a heating foam material fixture for attaching the heating foam material to the attached member. The attached member has a flat attachment surface and a protruding plate portion disposed adjacent to the attachment surface and protruding in a direction substantially perpendicular to the attachment surface. In the fitting of the present invention, as the heating foam material fixture, the heating foam material fixture according to the present invention First aspect is used to attach (hold down) the heating foam material to the attachment surface.

[0014] The second aspect of the fitting of the present invention includes a rectangular frame body, a door body built inside the frame body, a plate-shaped heating foam material that foams at least in the plate thickness direction by heating, at least one of the frame members constituting the frame body and the sash members constituting the door body, a heating foam material fixture for attaching the heating foam material to the attached member, and an airtight piece that closes the gap between the door body and the frame body when the door body is closed. The attached member has a flat attachment surface and a protruding plate portion disposed adjacent to the attachment surface and protruding in a direction substantially perpendicular to the attachment surface. In the fitting of the present invention, as the heating foam material fixture, the heating foam material fixture according to the present invention Second or third aspect is used to attach the heating foam material to the attachment surface, and the airtight piece is locked in the locking concave groove.

Effect of the Invention

[0015] According to the present invention, it is possible to prevent the heat-expandable material from falling off from the frame material or the surrounding material before foaming, and it is possible to attach the heat-expandable material not only to new fixtures but also to existing fixtures, and it is possible to realize the structure of the heat-expandable material attachment tool that is less likely to be restricted by the attachment position of the heat-expandable material.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

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Figure 8

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Figure 13

Figure 14

Mode for Carrying Out the Invention

[0017] [First Example of Embodiment] The first example of the embodiment will be described with reference to FIGS. 1 to 6. This example shows the case where the present invention is applied to a door device. The door device 1 of this example is a so-called single-opening frame door. As shown in the overall configuration in FIG. 1, it includes a door frame 2 which is a rectangular frame body fixed to an opening of a building, and a door leaf 3 which is a door body supported inside the door frame 2 so as to be openable and closable. In this specification, the in-plane direction refers to the width direction (the left-right direction in FIG. 1) of the door frame 2, which is one of the horizontal directions. Also, regarding the in-plane direction, the inner side refers to the center side in the width direction of the door frame 2, and the outer side regarding the in-plane direction refers to the outer side in the width direction of the door frame 2.

[0018] [Structure of Door Frame 2] The door frame 2 includes an upper frame 4 arranged in the in-plane direction and constituting the upper side, a lower frame 5 also arranged in the in-plane direction and constituting the lower side, and a pair of vertical frames 6 arranged in the vertical direction and constituting the left and right vertical sides. Then, by connecting both end portions in the in-plane direction of each of the upper frame 4 and the lower frame 5, and both end portions in the vertical direction of each of the pair of vertical frames 6 using tapping screws or the like, the door frame 2 is configured in a rectangular shape. Each of the frames 4 to 6 constituting the door frame 2 is an integrally extruded molding made of an aluminum alloy. Of the pair of vertical frames 6, one vertical frame 6 arranged on the right side (appearance) in FIG. 1 is the vertical frame on the hanging side, and a hinge 7 (see FIG. 3) is attached thereto. On the other hand, the other vertical frame 6 arranged on the left side (appearance) in FIG. 1 is the vertical frame on the door tip side. In this example, in order to prevent the gap between the door frame 2 and the door leaf 3 from becoming a passage for flames, hot air, etc. when a fire occurs, heat-expandable materials 8a, 8b are attached to the lower frame 5. The attachment mode of the heat-expandable materials 8a, 8b will be described in detail later.

[0019] As shown in FIG. 2, the upper frame 4 includes a substantially flat upper frame substrate portion 9 horizontally disposed above the door 3, and an upper frame holding piece 10 extending vertically downward from the intermediate portion of the upper frame substrate portion 9 in the indoor-outdoor direction. The upper frame holding piece 10 is disposed on the indoor side of the door 3 and has a locking groove 11a opening to the outdoor side. An airtight piece 12a made of an elastic material is locked in the locking groove 11a. Further, a holder groove 13 opening downward is provided in the outdoor side portion of the upper frame substrate portion 9. A drain member 14 made of an elastic material is locked in the holder groove 13. The airtight piece 12a closes the gap between the upper edge of the door 3 (the upper frame 33 described later) and the upper frame 4 when the door 3 is closed.

[0020] As shown in FIGS. 2 and 6, the lower frame 5 includes an outdoor lower frame substrate portion 15 disposed below the door 3, a lower frame holding piece 16 extending vertically upward from the indoor side end portion of the outdoor lower frame substrate portion 15, and an indoor lower frame substrate portion 17 extending inward from the upper end portion of the lower frame holding piece 16. The entire outdoor lower frame substrate portion 15 is inclined downward in a direction toward the outdoor side. In contrast, the outdoor side portion of the indoor lower frame substrate portion 17 is horizontally disposed, and the other portions are inclined downward in a direction toward the indoor side. A gap having a small vertical dimension is formed between the lower edge of the door 3 (the lower frame 34 described later) and the outdoor lower frame substrate portion 15 when the door 3 is in the closed state.

[0021] The lower frame holding piece 16 is disposed on the indoor side of the door 3 and has a locking groove 11b opening to the outdoor side. An airtight piece 12b made of an elastic material is locked in the locking groove 11b. The airtight piece 12b closes the gap between the lower edge of the door 3 (the lower frame 34 described later) and the lower frame 5 when the door 3 is closed.

[0022] As shown in FIG. 5, the lower frame holding piece 16 is composed of a base portion 18 disposed in the lower half and a holding portion 19 disposed in the upper half.

[0023] The base portion 18 is configured in a flat plate shape and has an attachment surface 20 in the form of a flat surface facing the outdoor side. As will be described later, a heat-expandable material 8a is attached to the attachment surface 20 which is the outdoor side surface of the base portion 18.

[0024] The holding part 19 has a substantially U-shaped cross-sectional shape and has a locking concave groove 11b on the inner side thereof. The holding parts 19 are arranged at intervals in the vertical direction, and each includes an upper overhanging plate part 21 and a lower overhanging plate part 22 that horizontally project outward toward the outdoor side, and a bottom plate part 23 that vertically connects the indoor-side ends of the upper overhanging plate part 21 and the lower overhanging plate part 22.

[0025] The upper overhanging plate part 21 is provided at the upper end of the lower frame holding piece 16 and has a bent part 24a that bends substantially at a right angle downward at the outdoor-side end.

[0026] The lower overhanging plate part 22 is provided at the middle part in the vertical direction of the lower frame holding piece 16 and has a bent part 24b that bends substantially at a right angle upward at the outdoor-side end. The lower overhanging plate part 22 is arranged adjacent to the upper side of the mounting surface 20 and projects in the horizontal direction, which is a direction perpendicular to the mounting surface 20 that is a vertical plane. Of the upper and lower surfaces of the lower overhanging plate part 22, the upper surface is an inclined surface that is slightly inclined upward in a direction toward the indoor side, while the lower surface is a horizontal plane whose vertical position does not change across the indoor and outdoor directions.

[0027] Thus, in the door device 1 of this example, a locking piece that constitutes a sheath-shaped concave groove for locking the heat-insulating foam material 8a is not provided on the lower surface of the lower overhanging plate part 22 arranged adjacent to the mounting surface 20. Further, the lower surface of the lower overhanging plate part 22 is located at substantially the same vertical position as the lower end surface (the lower end surface of the lower frame 34) in the closed state of the door 3. 。

[0028] The bottom plate portion 23 is disposed above the base portion 18, is configured in a flat plate shape, and has a flat pressed surface 25 facing the outdoor side. In other words, the pressed surface 25 is provided on the bottom surface of the locking concave groove 11b. The pressed surface 25 is disposed on the opposite side (upper side) of the mounted surface 20 with the lower overhanging plate portion 22 interposed therebetween. In this example, the pressed surface 25 is disposed on the same vertical plane as the mounted surface 20. In the illustrated example, the vertical width dimension of the pressed surface 25 is slightly smaller than the vertical width dimension of the mounted surface 20.

[0029] As shown in FIG. 3, each of the pair of vertical frames 6 is composed of an outer vertical frame 26 fixed to the opening of the building and an inner vertical frame 28 fixed to the outer vertical frame 26 by screws 27. The outer half of the inner vertical frame 28 in the in-plane direction is inserted into the storage concave groove 29 provided in the middle portion of the outer vertical frame 26 in the indoor-outdoor direction without rattling. A vertical frame holding piece 30 is provided at the inner end of the inner vertical frame 28 in the in-plane direction. The vertical frame holding piece 30 is provided with a locking concave groove 11c opening to the outdoor side. An airtight piece 12c made of an elastic material is locked in the locking concave groove 11c. The airtight piece 12c closes the gap between the left and right vertical sides (vertical frames 35 described later) of the door 3 and the vertical frame 6 when the door 3 is closed.

[0030] [Structure of Door 3] As shown in FIG. 1, the door 3 built inside the door frame 2 is configured by fitting a glass panel 32 inside a rectangular frame body 31, and is supported by a plurality of hinges 7 (see FIG. 3) so as to be openable and closable with respect to the door frame 2.

[0031] The frame body 31 is configured in a rectangular shape by connecting the respective ends of an upper frame 33 constituting the upper side, a lower frame 34 constituting the lower side, and a pair of vertical frames 35 constituting the left and right vertical sides. Each of the frames 33 to 35 constituting the frame body 31 is an integrally extruded molding made of an aluminum alloy.

[0032] The glass panel 32 is a wired glass with excellent fireproof performance. The upper side (upper edge portion), lower side (lower edge portion), and side sides (side edge portions) of the glass panel 32 are respectively inserted into the inside of the glass grooves 36a to 36c provided in the upper frame 33, lower frame 34, and left and right vertical frames 35 that constitute the frame body 31. Further, the lower side of the glass panel 32 abuts against the bottom of the glass groove 36b provided in the lower frame 34 via the setting block 37, and spacer blocks 38 are respectively fitted between both side sides of the glass panel 32 and the bottom of the glass groove 36c provided in the vertical frame 35. Further, the portions between both side surfaces of the outer peripheral edge vicinity portion of the glass panel 32 and the openings of the glass grooves 36a to 36c are sealed entirely around by the outdoor side sealing material 39a and the indoor side sealing material 39b, respectively.

[0033] [Fireproof Structure of Door Device 1] In the door device 1 of this example, when a fire occurs, it is possible to prevent the gap between the door frame 2 and the door 3 from becoming a passage for flames, hot air, etc. For this purpose, heating foaming materials 8a and 8b that foam at least in the plate thickness direction by heating are attached to the lower frame 5 that constitutes the door frame 2 using heating foaming material attachments 40.

[0034] Specifically, the heating foaming materials 8a and 8b that each extend in the in-plane direction are attached to the lower frame 5 using a plurality of heating foaming material attachments 40. In the illustrated example, each of the heating foaming material 8a and the heating foaming material 8b is configured by connecting two heating foaming materials having a predetermined length in series in the in-plane direction. For this reason, as shown in FIG. 1, the heating foaming material attachments 40 are arranged at a total of three locations: the end portions on both sides in the in-plane direction of the heating foaming material 8a and the heating foaming material 8b, and the joint portion located in the middle in the in-plane direction of the heating foaming material 8a and the heating foaming material 8b. However, when implementing the present invention, the installation position and the number of installation of the heating foaming material attachments are not particularly limited. Also, although illustration and description are omitted, a plurality of heating foaming materials can be attached to each of the frames 4, 6 other than the lower frame 5 that constitutes the door frame 2, and the frames 33, 34, 35 that constitute the frame body 31 by various attachment methods such as a method of locking the heating foaming materials to a sheath-shaped concave groove or a method of fixing with screws.

[0035] The heat-expandable materials 8a and 8b are in the form of plates (bands, sheets) with a thickness of about several millimeters, expand (swell) at least in the plate thickness direction by heating, and have fire resistance. For example, the product named "Fiblock" manufactured by Sekisui Chemical Co., Ltd. can be used. Note that the heat start temperature of "Fiblock" is about 200°C, and the plate thickness becomes about 5 to 40 times thicker depending on its type (butyl type, epoxy type, etc.). In addition, as the heat-expandable material, one that expands not only in the plate thickness direction but also in the directions orthogonal to the plate thickness direction (width direction and length direction) can be used.

[0036] [Mounting structure of heat-expandable materials 8a and 8b] In this example, the heat-expandable materials 8a and 8b are attached to the outdoor side surface of the lower frame holding piece 16 that constitutes the lower frame 5 over the entire length in the in-plane direction.

[0037] Specifically, the heat-expandable material 8a is attached to the mounting surface 20 of the base 18 that constitutes the lower half of the lower frame holding piece 16 with the plate thickness direction aligned with the indoor-outdoor direction and its lower end portion positioned on the upper surface of the outdoor lower frame substrate portion 15. On the other hand, the heat-expandable material 8b is attached to the pressed surface 25 of the holding portion 19 that constitutes the upper half of the lower frame holding piece 16 with the plate thickness direction aligned with the indoor-outdoor direction and its lower end portion positioned on the upper surface of the lower overhanging plate portion 22. For this reason, the heat-expandable material 8a and the heat-expandable material 8b are arranged on the same vertical plane while being separated from each other in the vertical direction. In addition, the heat-expandable material 8b is arranged inside the locking concave groove 11b. In the illustrated example, the vertical width dimension of the heat-expandable material 8a and the vertical width dimension of the heat-expandable material 8b are made the same as each other.

[0038] In this example, the heat-expandable material 8a is attached to the surface to be attached 20 with an adhesive (adhesive) using an adhesive tape, and the heat-expandable material 8b is attached to the surface to be pressed 25 with an adhesive using an adhesive tape. Further, each of the heat-expandable material 8a attached to the surface to be attached 20 and the heat-expandable material 8b attached to the surface to be pressed 25 is simultaneously pressed using the heat-expandable material fixture 40 attached to the lower overhanging plate portion 22.

[0039] [Structure of Heat-Expandable Material Fixture 40] The heat-expandable material fixture 40 is a small part formed by subjecting a metal plate having corrosion resistance and heat resistance such as a stainless steel plate or an aluminum alloy to press working such as punching and bending. The heat-expandable material fixture 40 has a width dimension (for example, a width dimension of about several mm to a dozen or so mm) that is sufficiently small with respect to the length dimension of the heat-expandable materials 8a and 8b so as not to hinder the expansion of the heat-expandable materials 8a and 8b. As shown in FIG. 5, the heat-expandable material fixture 40 has a clip shape in which the cross-sectional shape is bent in a substantially H shape, and includes an attachment portion 41 and a pair of arm portions 42 and 43. In this example, a plurality (three in the illustrated example) of heat-expandable material fixtures 40 are used, and each of the heat-expandable material fixtures 40 has the same configuration.

[0040] The attachment portion 41 is configured in a substantially U-shaped plate shape and is attached to the lower overhanging plate portion 22 so as to surround the front half portion of the lower overhanging plate portion 22. The attachment portion 41 includes an upper plate portion 44 disposed above the lower overhanging plate portion 22, a lower plate portion 45 disposed below the lower overhanging plate portion 22, and a connecting portion 46 that connects the outdoor-side end portions of the upper plate portion 44 and the lower plate portion 45.

[0041] The upper plate portion 44 has a bent portion 47 bent in a substantially V shape such that the middle portion in the indoor-outdoor direction projects downward. The vertical dimension between the lower end portion of the bent portion 47 and the upper surface of the lower plate portion 45 is sufficiently smaller than the vertical dimension of the outdoor-side end portion (including the bent portion 24b) of the lower overhanging plate portion 22. On the other hand, the lower plate portion 45 is configured in a flat plate shape as a whole.

[0042] With the attachment portion 41 attached to the lower overhanging plate portion 22, the bent portion 47 engages with the bent portion 24b provided at the outdoor-side end of the lower overhanging plate portion 22 in the indoor-outdoor direction. Thereby, the heat-insulating foam attachment fixture 40 (attachment portion 41) is prevented from moving outward in the overhanging direction of the lower overhanging plate portion 22 with respect to the lower overhanging plate portion 22. For this reason, the bent portion 47 corresponds to the engaging portion described in the claims. Further, with the attachment portion 41 attached to the lower overhanging plate portion 22, the upper surface of the lower plate portion 45 is in surface contact with the lower surface of the lower overhanging plate portion 22.

[0043] The pair of arm portions 42 and 43 extend away from each other in the vertical direction that coincides with the thickness direction of the lower overhanging plate portion 22 from the indoor-side end of the attachment portion 41.

[0044] Of the pair of arm portions 42 and 43, one arm portion 42 disposed below is configured in a flat plate shape and is bent at a right angle downward from the indoor-side end of the lower plate portion 45. On the other hand, the other arm portion 43 disposed above of the pair of arm portions 42 and 43 is configured in a flat plate shape and is bent upward from the indoor-side end of the upper plate portion 44. In this example, one arm portion 42 and the other arm portion 43 are located at the same position in the indoor-outdoor direction. For this reason, the indoor-side surface of one arm portion 42 and the indoor-side surface of the other arm portion 43 are located on the same virtual plane.

[0045] In this example, the vertical width dimension of one arm portion 42 is larger than the vertical width dimension of the other arm portion 43. In the illustrated example, the vertical width dimension of one arm portion 42 is about three times the vertical width dimension of the other arm portion 43. The vertical width dimension of one arm portion 42 is substantially the same as the vertical width dimension of the heat-insulating foam 8a and is slightly smaller than the vertical height dimension of the surface to be attached 20. The vertical width dimension of the other arm portion 43 is smaller than the vertical width dimension of the heat-insulating foam 8b and the vertical height dimension of the surface to be pressed 25 (about 1 / 2 in the illustrated example). Note that the in-plane width dimensions of one arm portion 42 and the other arm portion 43 are equal to each other and are the same as the in-plane width dimension of the attachment portion 41.

[0046] With the attachment part 41 attached to the lower overhanging plate part 22, one arm part 42 presses the heat-insulating and foaming material 8a (excluding the lower end part thereof) against the mounting surface 20 in the thickness direction of the heat-insulating and foaming material 8a (towards the indoor side). On the other hand, the other arm part 43 presses the surface 25 to be pressed against via the heat-insulating and foaming material 8b. Therefore, in this example, also with respect to the other arm part 43, the heat-insulating and foaming material 8b (excluding the upper end part thereof) is pressed against the surface 25 to be pressed against in the thickness direction of the heat-insulating and foaming material 8b. In this example, the magnitude of the force for pressing the heat-insulating and foaming materials 8a and 8b by the arm parts 42 and 43 can be changed according to the length dimension in the indoor-outdoor direction of the attachment part 41 (the upper plate part 44 and the lower plate part 45) with respect to the dimension from the outdoor side end of the lower overhanging plate part 22 to the outdoor side surfaces of the heat-insulating and foaming materials 8a and 8b, and can be adjusted from a magnitude such that the outdoor side surfaces of the heat-insulating and foaming materials 8a and 8b are gently touched to a magnitude such that the heat-insulating and foaming materials 8a and 8b can be strongly pressed.

[0047] To attach the heat-insulating and foaming material fixture 40 of this example as described above to the lower overhanging plate part 22, as shown in FIG. 6(A), the heat-insulating and foaming material fixture 40 is brought closer to the lower overhanging plate part 22 from the outdoor side, and with the outdoor side end of the heat-insulating and foaming material fixture 40 tilted obliquely upward, the outdoor side end of the lower overhanging plate part 22 is inserted inside the attachment part 41. Thereafter, while moving the lower plate part 45 constituting the attachment part 41 indoors along the lower surface of the lower overhanging plate part 22, by tilting the outdoor side end of the heat-insulating and foaming material fixture 40 downward, as shown in FIG. 6(B), the outdoor side end of the lower overhanging plate part 22 is pushed into the inner part of the attachment part 41. Thereby, the heat-insulating and foaming material fixture 40 is attached (mounted) to the lower overhanging plate part 22.

[0048] In this example, in this way, after attaching the heat-expanded foam fixture 40 to the lower overhanging plate portion 22, the airtight piece 12b is locked to the locking concave groove 11b. Therefore, the heat-expanded foam 8b disposed above is covered from the outdoor side by the airtight piece 12b. On the other hand, the heat-expanded foam 8a disposed below is exposed to the outdoor side. Also, the upper plate portion 44 constituting the attachment portion 41 is pressed against the upper surface of the lower overhanging plate portion 22 by the airtight piece 12b locked to the locking concave groove 11b, and the connecting portion 46 constituting the attachment portion 41 is pressed against the outdoor-side end surface of the lower overhanging plate portion 22.

[0049] In the door device 1 of this example having the above-described configuration, the heat-expanded foams 8a and 8b are not only attached to the lower frame 5 with an adhesive, but also held in the plate thickness direction of the heat-expanded foams 8a and 8b by using the heat-expanded foam fixture 40. For this reason, it is possible to prevent the heat-expanded foams 8a and 8b from falling off the lower frame 5 before foaming. Therefore, at the time of a fire, the gap between the lower part (lower frame 34) of the door 3 and the outdoor-side lower frame substrate portion 15 constituting the lower frame 5 can be blocked over the entire length in the in-plane direction by the foamed (expanded) heat-expanded foam 8a. Also, it is possible to suppress the melting of the airtight piece 12b by the foamed heat-expanded foam 8a. Further, when the airtight piece 12b melts, the gap between the lower part (lower frame 34) of the door 3 and the lower frame holding piece 16 constituting the lower frame 5 can be blocked over the entire length in the in-plane direction by the foaming of the heat-expanded foam 8b attached to the surface to be pressed 25. Note that the heat-expanded foam 8b can also be prevented from tilting or falling off the locking concave groove 11b by the airtight piece 12b. However, in this example, since the heat-expanded foam 8b is held by the other arm portion 43 of the heat-expanded foam fixture 40, even after the airtight piece 12b melts, the posture of the heat-expanded foam 8b can be stabilized and the foaming direction can be regulated in the intended direction.

[0050] In this example, instead of locking the heat-expandable materials 8a and 8b into the sheath-like concave grooves formed in the lower frame 5, the heat-expandable materials 8a and 8b are pressed down using a heat-expandable material fixture 40 which is a separate part from the lower frame 5. Therefore, the heat-expandable materials 8a and 8b can be attached not only to the new door device 1 but also to the existing door device 1. That is, as in this example, it becomes possible to attach the heat-expandable materials 8a and 8b to the lower frame 5 which does not have a sheath-like concave groove.

[0051] The surface to be attached 20 is provided on the outdoor side surface of the base 18 which constitutes the lower half of the lower frame holding piece 16 and is located near the floor surface. For this reason, even when attempting to fix the heat-expandable material 8a to the surface to be attached 20 using, for example, screws, due to the narrow working space, it may not be possible to perform the screwing operation itself or the workability deteriorates. In contrast, in the case of this example, the heat-expandable material fixture 40 can be attached to the lower protruding plate portion 22 simply by pushing the heat-expandable material fixture 40 into the lower protruding plate portion 22 from the outdoor side, and the heat-expandable material 8a can be pressed against the surface to be attached 20. Therefore, according to the structure of this example, it is possible to make it less likely to be restricted by the mounting position of the heat-expandable material 8a.

[0052] Also, since the bent portion 47 provided on the attachment portion 41 is engaged with the bent portion 24b provided on the lower protruding plate portion 22 in the indoor-outdoor direction, it is possible to prevent the heat-expandable material fixture 40 from dropping off the lower protruding plate portion 22 to the outdoor side. For this reason, even when the force pressing the heat-expandable materials 8a and 8b inward by the pair of arm portions 42 and 43 is increased, it is possible to prevent the heat-expandable material fixture 40 from moving (dropping off) to the outdoor side. Further, the airtight piece 12b locked in the locking concave groove 11b can press the upper plate portion 44 constituting the attachment portion 41 against the upper surface of the lower protruding plate portion 22 and press the connecting portion 46 constituting the attachment portion 41 against the outdoor side end surface of the lower protruding plate portion 22. Therefore, the posture of the heat-expandable material fixture 40 can be stabilized. Also, it is possible to prevent the heat-expandable material fixture 40 from moving to the outdoor side and from moving in the in-plane direction.

[0053] Furthermore, in this example, since the indoor side surfaces of the pair of arms 42 and 43 are brought into contact (surface contact) with the outdoor side surfaces of the heat-insulating foams 8a and 8b respectively, the frictional force acting between the indoor side surfaces of the pair of arms 42 and 43 and the outdoor side surfaces of the heat-insulating foams 8a and 8b can suppress the in-plane movement of the heat-insulating foam fixture 40.

[0054] Also, since the lower plate portion 45 constituting the attachment portion 41 is configured in a flat plate shape and the upper surface of the lower plate portion 45 is in surface contact with the lower surface of the lower overhanging plate portion 22, the frictional force acting between the upper surface of the lower plate portion 45 and the lower surface of the lower overhanging plate portion 22 can be increased. Therefore, the in-plane movement of the heat-insulating foam fixture 40 can be effectively suppressed.

[0055] [Second Example of Embodiment] The second example of the embodiment will be described with reference to FIGS. 7 and 8. In this example, only the shape of the heat-insulating foam fixture 40a is changed from the structure of the first example of the embodiment. Specifically, the shapes of the pair of arms 42a and 43a constituting the heat-insulating foam fixture 40a are changed.

[0056] Of the pair of arms 42a and 43a, one arm 42a disposed below is configured in a flat plate shape and, in a free state, extends in a direction toward the indoor side as it goes downward from the indoor side end of the lower plate portion 45. For this reason, one arm 42a extends in a direction approaching the surface to be attached 20 toward the tip side, and the included angle α between the arm 42a and the lower plate portion 45 is an obtuse angle. The lower end portion of one arm 42a is located most inwardly. In the illustrated example, the magnitude of the included angle α between one arm 42a and the lower plate portion 45 is about 95 degrees.

[0057] Of the pair of arm portions 42a and 43a, the other arm portion 43a arranged above is configured in a flat plate shape and, in a free state, extends from the indoor-side end portion of the upper plate portion 44 in a direction toward the indoor side as it goes upward. For this reason, the other arm portion 43a extends in a direction approaching the pressed surface 25 toward the tip side, and the included angle β between the other arm portion 43a and the upper plate portion 44 is an obtuse angle. The upper end portion of the other arm portion 43a is located most on the indoor side. In the illustrated example, the magnitude of the included angle β between the other arm portion 43a and the upper plate portion 44 is about 115 degrees.

[0058] Also in this example, with the attachment portion 41 attached to the lower overhanging plate portion 22, one arm portion 42a presses the heat-insulating foam 8a against the attached surface 20 in the plate thickness direction of the heat-insulating foam 8a. In this way, when the heat-insulating foam 8a is pressed by one arm portion 42a, due to the engagement between the bent portion 47 and the bent portion 24b, the attachment portion 41 (connection portion 46) does not move outward. Therefore, as shown in FIG. 8, one arm portion 42a receives the reaction force from the heat-insulating foam 8a and elastically deforms in a direction to reduce the included angle α between the one arm portion 42a and the lower plate portion 45.

[0059] Further, with the attachment portion 41 attached to the lower overhanging plate portion 22, the other arm portion 43a presses the pressed surface 25 via the heat-insulating foam 8b. That is, also in this example, the other arm portion 43a presses the heat-insulating foam 8b against the pressed surface 25 in the plate thickness direction of the heat-insulating foam 8b. In this way, when the heat-insulating foam 8b is pressed by the other arm portion 43a, due to the engagement between the bent portion 47 and the bent portion 24b, the attachment portion 41 (connection portion 46) does not move outward. Therefore, as shown in FIG. 8, the other arm portion 43a receives the reaction force from the heat-insulating foam 8b and elastically deforms in a direction to reduce the included angle β between the other arm portion 43a and the upper plate portion 44.

[0060] In this example, by utilizing the force that elastically deforms one arm portion 42a, the upper surface of the lower plate portion 45 can be elastically pressed against the lower surface of the lower protruding plate portion 22. Also, by utilizing the force that elastically deforms the other arm portion 43a, the lower surface (the lower end portion of the bent portion 47) of the upper plate portion 44 can be elastically pressed against the upper surface of the lower protruding plate portion 22. That is, the lower protruding plate portion 22 can be elastically clamped in the plate thickness direction (vertical direction) by the upper plate portion 44 and the lower plate portion 45 that constitute the attachment portion 41.

[0061] In this example having the above-described configuration, the heating foam material 8a can be elastically pressed by one arm portion 42a, and the heating foam material 8b can be elastically pressed by the other arm portion 43a. Thereby, since the force for pressing down the heating foam materials 8a and 8b can be increased by the pair of arm portions 42a and 43a, it is possible to effectively prevent the heating foam materials 8a and 8b from falling off before foaming. Also, the frictional force acting between the indoor side surface of one arm portion 42a and the outdoor side surface of the heating foam material 8a, and the frictional force acting between the indoor side surface of the other arm portion 43a and the outdoor side surface of the heating foam material 8b can be increased respectively. Therefore, the heating foam material fixture 40a can be more effectively suppressed from moving in the in-plane direction.

[0062] Furthermore, since the lower protruding plate portion 22 can be elastically clamped by the upper plate portion 44 and the lower plate portion 45 that constitute the attachment portion 41, it is possible to suppress the heating foam material fixture 40a from moving to the outdoor side, and it is also possible to suppress the heating foam material fixture 40a from moving in the in-plane direction. Regarding other configurations and operational effects, they are the same as those in the first example of the embodiment.

[0063] [Third Example of the Embodiment] The third example of the embodiment will be described with reference to FIGS. 9 and 10. In this example, only the shape of the heating foam material fixture 40b is further changed from the structure of the second example of the embodiment. Specifically, the heating foam material fixture 40b includes a folded-back portion 48 that is folded back toward the outdoor side at the tip of one arm portion 42a disposed downward.

[0064] The folding portion 48 is configured in a flat plate shape and extends from the lower end portion of one arm portion 42a in a direction toward the outdoor side as it goes downward. For this reason, the folding portion 48 extends in a direction away from the mounting surface 20 as it goes toward the tip side, and the included angle γ between the folding portion 48 and one arm portion 42a is an obtuse angle. In the illustrated example, the magnitude of the included angle γ between the folding portion 48 and one arm portion 42a is about 110 degrees.

[0065] In this example, the outdoor lower frame substrate portion 15 constituting the lower frame 5 is covered with a lower frame cover 49 made of a metal such as stainless steel, for example, and the lower frame cover 49 is elastically pressed from above by the tip portion (lower end portion) of the folding portion 48. However, when implementing the present invention, a configuration in which the tip portion of the folding portion is brought into contact with the upper surface of the outdoor lower frame substrate portion 15 or a configuration in which it is not brought into contact with the lower frame cover 49 or the like (a gap is provided between it and other members) can also be adopted.

[0066] In this example having the above-described configuration, since the tip portion of the folding portion 48 folded outward from the tip portion of one arm portion 42a is brought into contact with the surface of the lower frame cover 49, it is possible to prevent the heat-insulating foam material fixture 40b from moving in the outdoor side and in-plane direction. Further, it is also possible to suppress the lower frame cover 49 from moving with respect to the lower frame 5. In this example, the folding portion 48 is provided only on one arm portion 42a. However, when implementing the present invention, the folding portion can be provided only on the other arm portion 43a, or can be provided on both one arm portion 42a and the other arm portion 43a. As shown by the broken line in FIG. 10, when the folding portion 48 is provided on the other arm portion 43a, the folding portion 48 extends in a direction away from the pressed surface 25 as it goes toward the tip side, and the included angle between the folding portion 48 and the other arm portion 43a becomes an obtuse angle. Regarding other configurations and operational effects, they are the same as those in the first example and the second example of the embodiment.

[0067] [Fourth Example of the Embodiment] The fourth example of the embodiment will be described with reference to FIG. 11. In this example, a heating and foaming material fixture 40c having substantially the same shape as the heating and foaming material fixture 40b according to the third example of the embodiment is used. However, the heating and foaming material fixture 40c is different from the third example of the embodiment in that it only presses down the heating and foaming material 8a disposed below.

[0068] In this example, there is no heating and foaming material inside the locking concave groove 11b provided in the lower frame holding piece 16. For this reason, in this example, the upper plate part 44a constituting the mounting part 41a is extended indoors, and the other arm part 43a disposed above directly presses the surface to be pressed 25 without passing through the heating and foaming material.

[0069] In this example having the above-described configuration, it is possible to suppress the heating and foaming material fixture 40c from moving in the in-plane direction by utilizing the frictional force acting between the indoor side surface of the other arm part 43a and the surface to be pressed 25. Regarding other configurations and operational effects, they are the same as those in the first, second, and third examples of the embodiment.

[0070] Reference example Reference example This will be described with reference to FIGS. 12 and 13. This Reference In this example, the shape of the heating and foaming material fixture 40d is further changed from the structure of the third example of the embodiment. Specifically, the heating and foaming material fixture 40d has the upper plate part 44b constituting the mounting part 41b configured in a flat plate shape. For this reason, the upper plate part 44b does not have a bent part (engagement part) that engages with the lower overhanging plate part 22a.

[0071] Also, the lower overhanging plate part 22a provided in the lower frame holding piece 16a is configured in a flat plate shape. For this reason, the lower overhanging plate part 22a does not have a bent part that engages with the heating and foaming material fixture 40d at the outdoor side end.

[0072] This having the above-described configuration Reference ​​In the example, the heat-insulating foam material fixture 40d suppresses the movement (drop-off) of the lower overhanging plate portion 22a toward the outdoor side only by elastically clamping the lower overhanging plate portion 22a in the vertical direction with the upper plate portion 44b and the lower plate portion 45 that constitute the attachment portion 41b.

[0073] This Reference In the example, not only the lower plate portion 45 but also the upper plate portion 44b is configured in a flat plate shape, and since the lower surface of the upper plate portion 44b can be brought into surface contact with the upper surface of the lower overhanging plate portion 22a, a large frictional force acting between the lower surface of the upper plate portion 44b and the upper surface of the lower overhanging plate portion 22a can be ensured. Therefore, even when the bent portion (engagement portion) is omitted from the upper plate portion 44b, the movement of the heat-insulating foam material fixture 40d toward the outdoor side can be sufficiently suppressed. Regarding other configurations and effects, they are the same as those in the first example, the second example, and the third example of the embodiment.

[0074] The structures of the examples of the embodiment can be implemented in appropriate combinations as long as there is no contradiction.

[0075] When implementing the present invention, the shape of each of the pair of arm portions constituting the heat-insulating foam material fixture is not limited to a flat plate shape, and various shapes can be adopted as long as the heat-insulating foam material (or the surface to be pressed or other members) can be pressed. Further, when a folded-back portion is provided at the tip of one of the arm portions, the shape of the pushed-back portion is not limited to a flat plate shape, and other shapes can be adopted. Further, when the surface to be pressed is pressed by the other arm portion via another member, another member other than the heat-insulating foam material (for example, a spacer, etc.) can be adopted as the other member. Further, when implementing the present invention, it is not an essential requirement to attach the heat-insulating foam material to the surface to be attached (or the surface to be pressed) with an adhesive.

[0076] Also, when implementing the present invention, when providing an engaging portion on the mounting portion that constitutes the heat-expandable material fixture, it can be provided not only on the upper plate portion but also on the lower plate portion or other portions. Also, regarding the shape of the engaging portion, it is not limited to the bent shape as shown in each example of the embodiment, and other shapes can be adopted as long as the movement (drop-off) of the heat-expandable material fixture can be prevented.

[0077] When implementing the present invention, the overhanging plate portion provided on the member to be mounted is not limited to constituting a holding portion for locking the airtight piece. The overhanging plate portion is arranged adjacent to the mounting surface and has a configuration that protrudes substantially at a right angle to the mounting surface, and its function, overhanging dimension, overhanging direction, etc. are not particularly limited. 。

[0078] In each example of the embodiment, the structure of attaching the heat-expandable material fixture to the lower frame, which is the member to be mounted, has been described. However, the heat-expandable material fixture of the present invention can be attached not only to the lower frame but also to the upper frame or vertical frame, and can also be attached to each frame constituting the frame body. Further, the present invention can be applied not only to a door device as a fitting but also to project windows such as a vertical sliding window, a horizontal sliding window, an outward-opening window, an inward-opening window, a FIX window, and window devices such as a sliding door-type window.

Explanation of Reference Numerals

[0079] 1 Door device 2 Door frame 3 Door 4 Upper frame 5 Lower frame 6 Vertical frame 7 Hinge 8a, 8b Heat-expandable material 9 Upper frame substrate portion 10 Upper frame holding piece 11a, 11b, 11c Locking concave grooves 12a, 12b, 12c Airtight pieces 13 Holder groove 14 Drainage material 15 Outdoor side lower frame substrate portion 16, 16a Lower frame holding pieces 17 Inner-side lower frame substrate part 18 Base part 19 Holding part 20 Mounting surface 21 Upper protruding plate part 22, 22a Lower protruding plate part 23 Bottom plate part 24a, 24b Bending part 25 Pressed surface 26 Outer vertical frame 27 Screw 28 Inner vertical frame 29 Storage concave groove 30 Vertical frame holding piece 31 Frame body 32 Glass panel 33 Upper frame 34 Lower frame 35 Vertical frame 36a~36c Glass groove 37 Setting block 38 Spacer block 39a Outdoor sealing material 39b Indoor sealing material 40, 40a~40d Heating foam mounting tool 41, 41a, 41b Mounting part 42, 42a Arm part 43, 43a Arm part 44, 44a, 44b Upper plate part 45 Lower plate part 46 Connecting part 47 Bending part 48 Folding-back part 49 Lower frame cover 100 Heating foam 101 Member to be mounted 102 Concave groove

Claims

1. It is at least one of a frame member constituting a rectangular frame body and a stile member constituting a door body built inside the frame body, and has a flat mounting surface and a projecting plate portion that is disposed adjacent to the mounting surface and projects in a direction substantially perpendicular to the mounting surface. A heat-expandable material mounting tool for attaching a plate-shaped heat-expandable material that expands at least in the plate thickness direction by heating to the mounting surface of the mounting member, It is made of metal and has a dimension smaller than that of the heat-expandable material in the length direction of the heat-expandable material, A substantially U-shaped mounting portion attached to the projecting plate portion so as to surround at least the tip portion of the projecting plate portion, and an arm portion extending in the plate thickness direction of the projecting plate portion from an end portion located on the base end side of the projecting plate portion among the mounting portions, The arm portion presses the heat-expandable material against the mounting surface in the plate thickness direction of the heat-expandable material, The mounting portion has an engaging portion that engages with a part of the projecting plate portion to prevent the mounting portion from moving in the projecting direction of the projecting plate portion, Heat-expandable material mounting tool.

2. The engaging portion is constituted by a bent portion. The heat-expandable material mounting tool according to claim 1.

3. It is at least one of a frame member constituting a rectangular frame body and a stile member constituting a door body built inside the frame body, and has a flat mounting surface and a projecting plate portion that is disposed adjacent to the mounting surface and projects in a direction substantially perpendicular to the mounting surface. The projecting plate portion constitutes a holding portion having a locking groove in which an airtight piece is locked inside. A heat-expandable material mounting tool for attaching a plate-shaped heat-expandable material that expands at least in the plate thickness direction by heating to the mounting surface of the mounting member, A substantially U-shaped mounting portion attached to the projecting plate portion so as to surround at least the tip portion of the projecting plate portion, and an arm portion extending in the plate thickness direction of the projecting plate portion from an end portion located on the base end side of the projecting plate portion among the mounting portions, The arm portion presses the heat-expandable material against the mounting surface in the plate thickness direction of the heat-expandable material, The mounting portion has an engaging portion that engages with a part of the projecting plate portion to prevent the mounting portion from moving in the projecting direction of the projecting plate portion, A part of the mounting portion is pressed against the side surface of the projecting plate portion by the airtight piece locked in the locking groove, Heat-expandable material mounting tool.

4. It is at least one of a frame member constituting a rectangular frame body and a stile member constituting a door body built inside the frame body, and has a flat mounting surface and a projecting plate portion that is disposed adjacent to the mounting surface and projects in a direction substantially perpendicular to the mounting surface. The projecting plate portion constitutes a holding portion having a locking groove in which an airtight piece is locked inside thereof. It is a heat-expandable material fixture for attaching a plate-shaped heat-expandable material that expands at least in the plate thickness direction by heating to the mounting surface of the mounting member. A substantially U-shaped mounting portion attached to the projecting plate portion so as to surround at least the tip of the projecting plate portion, and an arm portion extending in the plate thickness direction of the projecting plate portion from an end portion located on the base end side of the projecting plate portion among the mounting portions. The arm portion presses the heat-expandable material against the mounting surface in the plate thickness direction of the heat-expandable material. The mounting portion has an engaging portion that engages with a part of the projecting plate portion to prevent the mounting portion from moving in the projecting direction of the projecting plate portion. A part of the mounting portion is pressed against the end surface of the projecting plate portion by the airtight piece locked in the locking groove. Heat-expandable material fixture.

5. A rectangular frame body, A door body built inside the frame body, A plate-shaped heat-expandable material that expands at least in the plate thickness direction by heating, A heat-expandable material fixture, and At least one of the frame member constituting the frame body and the stile member constituting the door body is a mounting member having a flat mounting surface and a projecting plate portion that is disposed adjacent to the mounting surface and projects in a direction substantially perpendicular to the mounting surface. The heat-expandable material fixture attaches the heat-expandable material to the mounting surface of the mounting member, and is the heat-expandable material fixture according to any one of claims 1 to 2. Fittings.

6. A rectangular frame body, A door body built inside the frame body, A plate-shaped heat-expandable material that expands at least in the plate thickness direction by heating, A heat-expandable material fixture, and An airtight piece that closes a gap between the door body and the frame body when the door body is closed. At least one of the frame member constituting the frame body and the stile member constituting the door body is a mounting member having a flat mounting surface and a projecting plate portion that is disposed adjacent to the mounting surface and projects in a direction substantially perpendicular to the mounting surface. The projecting plate portion constitutes a holding portion having a locking groove in which an airtight piece is locked inside thereof. The heating and foaming material fixture attaches the heating and foaming material to the attachment surface of the member to be attached, and is the heating and foaming material fixture according to any one of claims 3 to 4. The airtight piece is locked in the locking concave groove. Fitting.

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