JP6976840B2 - Frame structure - Google Patents

Description

The present invention relates to a frame structure, a sash unit and an opening structure.

Conventionally, a frame structure has been used to attach a sash including a sash frame to a structural frame of a building. Patent Document 1 discloses an opening panel as a frame structure of this type, which is configured by combining a vertical frame and a horizontal frame and for attaching a sash to a building frame.

Japanese Unexamined Patent Publication No. 5-302385

However, in Patent Document 1, although it is described that the sash is attached to the frame of the building by using the opening panel, no mention is made about the method and position of forming the heat insulating line of the building when the opening panel is used. Not.

Therefore, it is an object of the present invention to provide a frame structure, a sash unit, and an opening structure that facilitate the formation of a heat insulating line of a building.

The frame structure as the first aspect of the present invention is a frame structure that allows the sash frame to be attached to the structural frame of the building, the first vertical frame portion to which the sash frame can be attached, and the first. The horizontal frame portion that is integrally configured with the vertical frame portion or is attached to the first vertical frame portion and is integrally configured with the horizontal frame portion or is attached to the horizontal frame portion. A second vertical frame portion is provided, and the first vertical frame portion and the second vertical frame portion are arranged at positions separated from each other in the width direction of the horizontal frame portion. Is.

As one embodiment of the present invention, a plurality of the horizontal frame portions are provided at different positions in the vertical direction, and the first vertical frame portion is arranged at a position sandwiched between the plurality of horizontal frame portions in the vertical direction. The second vertical frame portion is preferably arranged at a position on one side in the width direction with respect to the plurality of horizontal frame portions.

As one embodiment of the present invention, the second vertical frame portion may be provided with a skeleton mounting portion that projects upward and downward in the vertical direction from the horizontal frame portion and can be attached to the structural skeleton of the building. preferable.

As one embodiment of the present invention, it is preferable that the first vertical frame portion and the second vertical frame portion are arranged at overlapping positions in the width direction.

As one embodiment of the present invention, the first vertical frame portion includes a mounting surface on which the sash frame can be mounted, and the mounting surface is the second of the first vertical frame portions in the width direction. It is preferable that the vertical frame portion is composed of a surface opposite to the side on which the vertical frame portion is located.

The sash unit as the second aspect of the present invention includes a sash frame, a horizontal frame portion to which the sash frame is directly and / or indirectly attached via another member, and the lateral frame portion. A vertical frame portion that is integrally formed with the frame portion or is attached to the horizontal frame portion is provided, and the sash frame and the vertical frame portion are separated from each other in the width direction of the horizontal frame portion. It is characterized by being arranged in a position.

In the opening structure as a third aspect of the present invention, a sash frame arranged along the peripheral end face of the outer wall portion, which partitions the periphery of the opening, and the sash frame are directly and / or A horizontal frame portion indirectly attached via another member, and a vertical frame portion integrally configured with the horizontal frame portion or attached to the horizontal frame portion are provided. The sash frame and the vertical frame portion are characterized in that they are arranged at positions separated from each other in the width direction of the horizontal frame portion.

According to the present invention, it is possible to provide a frame structure, a sash unit and an opening structure that facilitate the formation of a heat insulating line of a building.

It is a figure which shows the opening structure as one Embodiment of this invention, and is also the figure which enlarges and shows the part surrounded by the broken line of the opening structure. It is a perspective view which shows the frame structure as one Embodiment of this invention which constitutes the opening structure shown in FIG. FIG. 3 is a perspective view showing a sash unit as an embodiment of the present invention, which is configured by attaching a sash frame to the frame structure shown in FIG. 2. It is a figure which shows the modification of the opening structure shown in FIG. It is a figure which shows the opening structure as one Embodiment of this invention.

Hereinafter, the opening structure and the building according to the present invention will be exemplified and described with reference to FIGS. 1 to 5. The same reference numerals are given to common members / parts in each figure.

FIG. 1 is a diagram showing an opening structure as an embodiment of the present invention. FIG. 1 shows a horizontal cross section of the opening structure. Further, the portion of the opening structure of FIG. 1 surrounded by a broken line is separately enlarged and shown in the lower right. FIG. 2 is a perspective view showing a frame structure 100 as an embodiment of the present invention, which constitutes a part of the opening structure shown in FIG. Further, FIG. 3 is an exploded view of the sash unit 200 which constitutes a part of the opening structure shown in FIG. 1, which is configured by attaching the sash frame 3 to the frame structure 100 shown in FIG. First, the outline of the building having the opening structure shown in FIG. 1 will be described.

The building of the present embodiment is, for example, a two-story house having a steel-framed frame, and has a reinforced concrete foundation and a frame frame composed of frame members such as columns and beams, and is used as the foundation. It consists of a fixed superstructure. The frame members constituting the frame frame are standardized in advance, and are manufactured in advance at the factory and then carried to the construction site for assembly.

The frame frame of the superstructure is composed of a plurality of columns and a plurality of beams. Exterior materials and the like constituting the outer peripheral wall are arranged on the outer peripheral portion of the frame frame. Further, a floor slab material or the like constituting the floor portion is arranged at the interlayer portion of the frame frame. Further, a roof floor slab material or the like constituting a flat roof is arranged on the upper part of the frame frame.

The outer peripheral wall of the building is, for example, an external finishing layer formed by connecting a panel-shaped exterior material made of lightweight cellular concrete (ALC) having a coating film as a waterproof layer on the surface side, and, for example, phenol foam. It is composed of a heat insulating layer composed of foamed resin-based panel-shaped heat insulating materials such as those connected along the inner surface of the exterior finishing layer, and a finishing material such as a gypsum boat and a wall cloth attached to the surface of gypsum board. It may be provided with an internal finishing layer, but is not limited to this configuration. The outer peripheral wall has at least predetermined fire resistance and waterproof performance. The building of the present embodiment is provided with a so-called "external heat insulating structure", and the heat insulating material is arranged on the outdoor side in the thickness direction of the outer peripheral wall with respect to the columns and beams constituting the frame frame. ..

The floor of the building contains floor slab material. The floor slab material is erected between the beams of the frame frame and is directly or indirectly supported by the beams. As the floor slab material, for example, an ALC panel can be used, but another member such as a folded plate, an extruded cement plate, or a wood panel material may be used. In addition to the floor slab material, the floor portion is placed on, for example, a ceiling interior material constituting the ceiling surface of the first floor as a lower floor, which is directly or indirectly attached to the floor slab material, or a floor slab material. It may include a floor interior material such as a flooring that constitutes the floor surface of the second floor as the upper floor, which is laminated.

Although the ALC panel can be used for the roof floor slab material constituting the flat roof, the ALC panel is not limited to the ALC panel. Further, the roof floor slab material is waterproofed by being covered with, for example, a waterproof sheet made of vinyl chloride resin or the like. Further, the roof of the building is not limited to a flat roof, and may be a sloped roof using a roof exterior material such as slate.

Next, the opening structure will be described with reference to FIGS. 1 to 3.

As shown in FIG. 1, an opening 2 is formed in the outer wall portion 1. The opening 2 is partitioned by a peripheral end face facing the opening 2 of the outer wall 1. Hereinafter, the outdoor side of the outer wall portion 1 in the thickness direction A may be simply referred to as the “outdoor side”, and the indoor side of the outer wall portion 1 in the thickness direction A may be simply referred to as the “indoor side”. In FIG. 1, the upper side with respect to the opening structure is the outdoor side, and the lower side with respect to the opening structure is the indoor side.

The outer wall portion 1 is a wall that separates the indoor space and the outdoor space of the building, and the above-mentioned outer peripheral wall is one aspect of the outer wall portion 1.

More specifically, the outer wall portion 1 of the present embodiment has a panel-shaped exterior material 1a facing the outdoor space and a panel-shaped heat insulating material 1b located on the indoor side of the exterior material 1a in the thickness direction A of the outer wall portion 1. And an interior material 1c, which is located on the indoor side of the heat insulating material 1b in the thickness direction A and is composed of a gypsum boat and a finishing material such as a wall cloth attached to the surface of the gypsum board. Further, the heat insulating material 1b of the present embodiment is located on the outdoor side in the thickness direction A of the outer wall portion 1 with respect to the columns and beams constituting the frame frame. The airtight line of the outer wall portion 1 of the present embodiment is formed on the indoor side of the heat insulating line.

The opening 2 is an opening such as a window or an entrance / exit formed in the outer wall portion 1. In the opening structure shown in FIG. 1, a window is shown as the opening 2, but for example, it may be an entrance / exit that can go back and forth between an indoor space and an outdoor space.

The opening structure shown in FIG. 1 includes an outer wall portion 1 on which the opening portion 2 is formed, a sash frame 3, a first vertical frame portion 4, a horizontal frame portion 5 (see FIGS. 2 and 3), and a first. 2 A vertical frame portion 6 and a fitting 10 are provided.

In this embodiment, as shown in FIG. 2, the sash frame 3 can be attached to the structural frame of the building by the first vertical frame portion 4, the horizontal frame portion 5, and the second vertical frame portion 6. The frame structure 100 is configured.

Further, in the present embodiment, as shown in FIG. 3, the sash unit 200 is configured by the frame structure 100 and the sash frame 3. In FIG. 3, for convenience of explanation, the frame structure 100 and the sash frame 3 are shown separately.

The sash frame 3 is arranged along the peripheral end surface of the outer wall portion 1 that partitions the periphery of the opening 2. A fitting 10 that can be opened and closed is attached to the opening 2 of the present embodiment. Therefore, the sash frame 3 of the present embodiment is located around the fitting 10 and holds the fitting 10 so that it can be opened and closed. As shown in FIG. 1, an interior frame 91 such as a wooden frame is provided on the indoor side of the sash frame 3.

The fitting 10 of the present embodiment is composed of a double-layered glass plate 10a and a stile 10b as a frame material of the double-layered glass plate 10a, but is not limited to this configuration. No. Further, in the present embodiment, an example in which the fitting 10 is attached to the opening 2 is shown, but the present invention is not limited to this configuration, and for example, a configuration in which a fitting window is provided may be used.

As shown in FIG. 3, the sash frame 3 of the present embodiment has two sash vertical frames 11 located on both sides of the opening 2 in the horizontal direction and two sash frames 11 erected between the two sash vertical frames 11. It is composed of a sash horizontal frame 12. In FIG. 1, two sash vertical frames 11 out of the sash frames 3 are shown.

The vertical frame 11 of the sash is made of metal such as aluminum, and is fastened to the main body 11a with screws, screws, or the like, or is fitted and integrated with vinyl chloride or the like. It includes a heat insulating portion 11b made of resin, and a protruding plate portion 11c that protrudes from the main body portion 11a toward the peripheral end surface side of the outer wall portion 1. The heat insulating portion 11b has higher heat insulating performance than the main body portion 11a. Further, the heat insulating portion 11b is located on the indoor side of the main body portion 11a.

The sash horizontal frame 12 includes a main body portion 12a made of metal such as aluminum, and a protruding plate portion 12c protruding from the main body portion 12a toward the peripheral end surface side of the outer wall portion 1. It should be noted that the sash horizontal frame 12 may be configured to include a heat insulating portion made of a resin such as vinyl chloride, which is fastened to the main body portion 12a with screws, screws, or the like, or is fitted and integrated. good.

As shown in FIGS. 1 to 3, the first vertical frame portion 4 is provided with a mounting surface 4a to which the above-mentioned sash frame 3 can be mounted, and the above-mentioned sash frame 3 is provided via the mounting surface 4a. Is attached. As shown in FIGS. 1 and 3, two first vertical frame portions 4 are provided horizontally spaced apart from each other, and a part of the sash frame 3 is provided between these two first vertical frame portions 4. Is fitted. More specifically, the main body 11a and the heat insulating portion 11b of the two sash vertical frames 11 of the sash frame 3 and the main body 12a of the two sash horizontal frames 12 of the sash frame 3 are two first vertical frame portions 4. It is fitted between the two in the thickness direction A from the outdoor side to the indoor side. Then, the completion of this fitting is a position where the protruding plate portion 11c of the sash vertical frame 11 of the sash frame 3 comes into contact with the mounting surface 4a of the first vertical frame portion 4, as shown in FIG. Further, as shown in FIG. 3, the completion of this fitting is also a position where the protruding plate portion 12c of the sash horizontal frame 12 of the sash frame 3 abuts on the mounting surface 5a of the horizontal frame portion 5 described later (see FIG. 3). ). As described above, the sash frame 3 of the present embodiment is positioned with respect to the first vertical frame portion 4 and the horizontal frame portion 5.

Further, as described above, the sash frame 3 can be attached to the first vertical frame portion 4 via the attachment surface 4a of the first vertical frame portion 4. In the present embodiment, the mounting surface 4a of the first vertical frame portion 4 is the width direction B of the horizontal frame portion 5 of the first vertical frame portion 4 (in the opening structure of FIG. 1, the thickness direction A of the outer wall portion 1). In the same direction), it is composed of a surface (the surface on the outdoor side in FIG. 1) opposite to the side on which the second vertical frame portion 6 is located. Further, a plurality of insertion holes are formed on the mounting surface 4a. Further, a plurality of insertion holes are also formed in the protruding plate portion 11c of the sash vertical frame 11 of the sash frame 3. By using a fastening member such as a screw or a screw that inserts both the insertion hole of the mounting surface 4a of the first vertical frame portion 4 and the insertion hole of the protruding plate portion 11c of the sash vertical frame 11, the first vertical frame portion The sash frame 3 can be directly attached to the 4.

The first vertical frame portion 4 of the present embodiment is a long member made of a steel material having a U-shaped cross-sectional outer shape, and stands up from the bottom plate portion 21 and both ends of the bottom plate portion 21. The first side plate portion 22 and the second side plate portion 23 are provided. The first vertical frame portion 4 of the present embodiment extends in the vertical direction so that the opening of the U-shaped long member faces the opening 2 side, and the first side plate located on the outdoor side. The above-mentioned mounting surface 4a is formed by the surface of the portion 22 on the outdoor side. Further, the bottom plate portion 21 is in contact with the end surface of the exterior wall portion 1 on the opening 2 side of the exterior material 1a.

Further, as shown in FIG. 3, the first vertical frame portion 4 of the present embodiment is arranged at a position sandwiched between a plurality of horizontal frame portions 5 in the vertical direction. Specifically, the bottom plate portion 21 and the second side plate portion 23 of the first vertical frame portion 4 of the present embodiment are arranged so as to be sandwiched between two horizontal frame portions 5 arranged at different positions in the vertical direction. ing.

More specifically, as shown in FIGS. 2 and 3, the first side plate portion 22 of the first vertical frame portion 4 of the present embodiment has more than the bottom plate portion 21 and the second side plate portion 23 at both ends in the longitudinal direction. It has a protruding portion 22a that is formed so as to protrude. Then, the bottom plate portion 21 and the second side plate portion 23 of the first vertical frame portion 4 are brought into contact with the mounting surface 5a of the horizontal frame portion 5 until the protruding portion 22a of the first side plate portion 22 abuts on the two horizontal frame portions 5. Fit in between. By doing so, the bottom plate portion 21 and the second side plate portion 23 of the first vertical frame portion 4 can be arranged between the two horizontal frame portions 5. Further, an insertion hole is formed in the mounting surface 5a of the horizontal frame portion 5 and the protruding portion 22a of the first side plate portion 22. With the protruding portion 22a of the first side plate portion 22 in contact with the mounting surface 5a of the horizontal frame portion 5, a fastening member such as a screw or a screw is provided in the insertion hole of the protruding portion 22a and the insertion hole of the mounting surface 5a. The first vertical frame portion 4 can be directly attached to the horizontal frame portion 5 by inserting the protrusion 22 and fastening the mounting surface 5a.

As shown in FIG. 1, in a state where the first vertical frame portion 4 is attached to the horizontal frame portion 5, the first vertical frame portion 4 and the second vertical frame portion 6 are connected to the horizontal frame portion 5. Are arranged at positions separated in the width direction B (the same direction as the thickness direction A in the opening structure of FIG. 1). The details will be described later.

Further, as shown in FIGS. 1 to 3, in the width direction B of the horizontal frame portion 5, the first vertical frame portion 4 and the second vertical frame portion 6 overlap each other (in the longitudinal direction of the horizontal frame portion 5). It is placed in the same position). With such an arrangement, it becomes easy to secure a large opening 2. The details will be described later.

A sash frame 3 is indirectly attached to the horizontal frame portion 5 of the present embodiment via a first vertical frame portion 4 as a separate member. Specifically, as described above, the sash frame 3 of the present embodiment is directly attached to the first vertical frame portion 4 by using the projecting plate portion 11c and the mounting surface 4a. As described above, the first vertical frame portion 4 is directly attached to the horizontal frame portion 5 by using the protruding portion 22a of the first side plate portion 22 and the mounting surface 5a. Therefore, the sash frame 3 is indirectly attached to the horizontal frame portion 5 via the first vertical frame portion 4.

Further, the sash frame 3 is directly attached to the horizontal frame portion 5 of the present embodiment at a position different from the position where the first vertical frame portion 4 is directly attached. This detailed configuration will be described later.

As described above, the sash frame 3 of the present embodiment is directly attached to the horizontal frame portion 5, and also indirectly via the first vertical frame portion 4 as a separate member, the horizontal frame portion 5. Is attached to.

The sash frame 3 may be directly or indirectly attached to the horizontal frame portion 5 only directly or indirectly via another member. The configuration may be attached by both means of the target. A specific example of the configuration in which the sash frame 3 is attached to the horizontal frame portion 5 only directly, not indirectly, will be described later (see FIG. 5).

Further, the horizontal frame portion 5 of the present embodiment is configured as a separate body from the first vertical frame portion 4 described above, and a fastening member such as a screw or a screw is used for the first vertical frame portion 4. Although it is attached by being fastened, the present invention is not limited to this configuration, and a horizontal frame portion that is integrally configured with the first vertical frame portion may be used.

A plurality of horizontal frame portions 5 of the present embodiment are provided at different positions in the vertical direction. Specifically, in this embodiment, two horizontal frame portions 5 are provided.

The horizontal frame portion 5 of the present embodiment is composed of a long member extending in the horizontal direction. Further, the horizontal frame portion 5 of the present embodiment is made of a steel material. The horizontal frame portion 5 of the present embodiment includes a first vertical plate portion 31 attached to the second vertical frame portion 6 and a first horizontal plate portion 32 protruding in the horizontal direction from the upper end of the first vertical plate portion 31. The second vertical plate portion 33 extending downward in the vertical direction from the tip of the first horizontal plate portion 32, and the lower end of the second vertical plate portion 33 toward the first vertical plate portion 31 side. A tip plate portion 34 extending in the horizontal direction, a second horizontal plate portion 35 protruding from the lower end of the first vertical plate portion 31 toward the same direction as the first horizontal plate portion 32, and the second horizontal plate portion 35. A base end plate portion 36 extending vertically upward from the tip of the base plate portion 36 is provided.

The two horizontal frame portions 5 of the present embodiment both have the same shape. However, the two horizontal frame portions 5 are arranged so as to be vertically symmetrical, and the first horizontal plate portions 32 are arranged so as to face each other in the vertical direction. Therefore, as shown in FIGS. 2 and 3, the bottom plate portion 21 and the second side plate portion 23 in the first vertical frame portion 4 of the present embodiment described above are the first horizontal plate portions 32 of the two horizontal frame portions 5. It is placed between them.

The first vertical plate portion 31 extends substantially parallel to the second vertical frame portion 6 described later, and is attached to the second vertical frame portion 6 by fastening with a fastening member such as a screw or a screw. .. However, the first vertical plate portion 31 may be attached to the second vertical frame portion 6 by welding or the like.

The second vertical plate portion 33 constitutes the mounting surface 5a of the horizontal frame portion 5. That is, by fastening the protruding plate portion 12c of the sash horizontal frame 12 of the sash frame 3 and the mounting surface 5a of the horizontal frame portion 5 with a fastening member such as a screw, the sash frame 3 can be fastened to the horizontal frame. It can be attached to the portion 5. In this way, the sash frame 3 can be directly attached to the horizontal frame portion 5.

More specifically, a plurality of insertion holes are formed in the protruding plate portion 12c of the sash horizontal frame 12. Further, a plurality of insertion holes are also formed in the second vertical plate portion 33 constituting the mounting surface 5a of the horizontal frame portion 5. Therefore, by inserting and fastening a fastening member such as a screw or a screw so as to pass through the insertion hole of the protruding plate portion 12c and the insertion hole of the second vertical plate portion 33, the protruding plate portion 12c is attached to the mounting surface. It can be fastened to 5a. In this way, the sash frame 3 can be directly attached to the horizontal frame portion 5.

A horizontal frame portion 5 is directly attached to the second vertical frame portion 6.

The second vertical frame portion 6 of the present embodiment is configured as a separate body from the above-mentioned horizontal frame portion 5, and is fastened to the horizontal frame portion 5 by using a fastening member such as a screw or a screw. However, the present invention is not limited to this configuration, and a second vertical frame portion that is integrally configured with the horizontal frame portion 5 may be used.

The second vertical frame portion 6 is arranged at a position on one side of the horizontal frame portion 5 with respect to the plurality of horizontal frame portions 5 in the width direction B (the same direction as the thickness direction A in the opening structure of FIG. 1). There is. Specifically, the second vertical frame portion 6 of the present embodiment is arranged on the indoor side of the horizontal frame portion 5.

Further, in the present embodiment, two second vertical frame portions 6 are provided. Each second vertical frame portion 6 of the present embodiment is composed of a long member extending in the vertical direction. Further, the second vertical frame portion 6 of the present embodiment is made of a steel material. The second vertical frame portion 6 includes a front plate portion 41 facing the horizontal frame portion 5 side, a side plate portion 42 extending from one end of the front plate portion 41 toward the back side, and the side plate portion. A rear end plate portion 43 that protrudes from the rear end of the 42 so as to be parallel to the front plate portion 41 is provided.

The two second vertical frame portions 6 of the present embodiment are arranged symmetrically so that the side plate portions 42 are arranged on the opening 2 side with respect to the front plate portion 41.

The horizontal frame portion 5 described above has two second vertical frame portions 6 by attaching the first vertical plate portion 31 of the horizontal frame portion 5 so as to straddle the front plate portions 41 of the two second vertical frame portions 6. Is attached to.

Further, the second vertical frame portion 6 projects upward and downward in the vertical direction from the horizontal frame portion 5, and is provided with a skeleton mounting portion that can be attached to the structural skeleton of the building. Specifically, the second vertical frame portion 6 of the present embodiment includes a first skeleton mounting portion 6a that projects upward in the vertical direction from the horizontal frame portion 5 and can be attached to a steel frame beam as a structural skeleton of a building. Further, the second vertical frame portion 6 of the present embodiment includes a second skeleton mounting portion 6b that protrudes downward from the horizontal frame portion 5 in the vertical direction and can be attached to a steel frame beam as a structural skeleton of a building. As described above, the second vertical frame portion 6 of the present embodiment can be attached to the upper and lower beams by fastening them with fastening members such as bolts, nuts, screws, and screws.

Here, as shown in FIGS. 1 to 3, the first vertical frame portion 4 and the second vertical frame portion 6 are arranged at positions separated from each other in the width direction B of the horizontal frame portion 5. With such a configuration, a heat insulating line is formed as compared with the case where the first vertical frame portion 4 and the second vertical frame portion 6 are not separated from each other in the width direction B of the horizontal frame portion 5. easy. That is, the space between the first vertical frame portion 4 and the second vertical frame portion 6 in the width direction B of the horizontal frame portion 5 can be used as the arrangement position of the heat insulating material, and the first vertical frame portion 4 and the first vertical frame portion 6 can be used. Even if the two vertical frame portions 6 are provided, it is possible to easily form a continuous heat insulating line along the extending direction of the horizontal frame portion 5.

In the opening structure shown in FIG. 1, at a position between the first vertical frame portion 4 and the second vertical frame portion 6 in the width direction B of the horizontal frame portion 5 (the same direction as the thickness direction A in FIG. 1). , A heat insulating material 9 different from the heat insulating material 1b of the outer wall portion 1 is arranged, and the heat insulating line is not divided between the heat insulating material 1b of the outer wall portion 1 and the fitting 10 provided in the opening 2 and having heat insulating properties. I am doing it. As described above, by forming the opening structure in which the first vertical frame portion 4 and the second vertical frame portion 6 are arranged at positions separated from each other in the width direction B of the horizontal frame portion 5, it is easy to form a heat insulating line. can do.

In particular, in the present embodiment, the first vertical frame portion 4 and the second vertical frame portion 6 are arranged at overlapping positions in the width direction B of the horizontal frame portion 5. By arranging in this way, the first vertical frame portion 4 and the second vertical frame portion 4 and the second vertical frame portion 4 are compared with the configuration in which the first vertical frame portion 4 and the second vertical frame portion 6 do not overlap in the width direction B of the horizontal frame portion 5. The frame portion 6 and the frame portion 6 can be arranged close to each other. Therefore, it becomes easy to secure a large opening 2 while facilitating the formation of a heat insulating line.

Next, a modified example of the opening structure shown in FIG. 1 will be described with reference to FIG. The opening structure shown in FIG. 4 is different from the opening structure shown in FIG. 1 in the shape of the first vertical frame portion, but the other configurations are the same.

The first vertical frame portion 304 shown in FIG. 4 is a long member made of a steel material having a concave cross-sectional outer shape, and is a bottom plate portion 321 and a first side plate portion 322 that stands up from both ends of the bottom plate portion 321. And a second side plate portion 323. The first vertical frame portion 304 shown in FIG. 4 extends in the vertical direction so that the opening of the concave long member faces the opening 2 side, and the first side plate portion 322 located on the outdoor side. Of these, the surface on the outdoor side constitutes a mounting surface 304a to which the sash frame 3 can be mounted. Further, the bottom plate portion 321 is in contact with the end surface of the outer wall portion 1 on the opening 2 side of the exterior material 1a.

Here, in the first vertical frame portion 304 shown in FIG. 4, the width of the second side plate portion 323 in the direction C (left-right direction in FIG. 4) orthogonal to the thickness direction A is the width of the first side plate portion 322 in the same direction C. Longer than the width, the second side plate portion 323 extends longer on the opening 2 side than the first side plate portion 322. In the example shown in FIG. 4, the sash frame 3 is positioned so as to be in contact with not only the mounting surface 304a of the first side plate portion 322 but also the outdoor side surface of the second side plate portion 323. By doing so, the positioning accuracy of the sash frame 3 can be further improved.

Next, another embodiment of the opening structure according to the present invention will be described with reference to FIG. The opening structure of the present embodiment is different from the opening structure shown in FIGS. 1 and 4 in that the first vertical frame portion is not provided, but the other configurations are the same.

That is, the sash frame 3 shown in FIG. 5 is attached to the horizontal frame portion 5 by the mounting surfaces 5a of the two horizontal frame portions 5 located above and below in the vertical direction, and is between the two horizontal frame portions 5. At the position of, the strength is not reinforced by another member. In this way, the sash frame 3 may be directly attached to the horizontal frame portion 5 without being attached to the first vertical frame portion 4. However, from the viewpoint of increasing the reinforcing strength of the sash frame 3, it is preferable to use the first vertical frame portion 4.

The frame structure, sash unit, and opening structure according to the present invention are not limited to the specific configurations described above, and can be variously modified or modified as long as they do not deviate from the description of the claims. .. For example, the opening structure shown in FIG. 1 is configured by using the frame structure 100 shown in FIG. 2 which has been assembled in advance, but it may be an opening structure in which everything is constructed in the field. Similarly, the opening structure shown in FIG. 1 is configured by using the sash unit 200 shown in FIG. 3 which has been assembled in advance, but it may be an opening structure in which everything is constructed on site.

Further, in the opening structure shown in FIGS. 1, 4, and 5, the sash frame 3 projects toward the heat insulating material 1b side of the outer wall portion 1, and the gap Y between the sash frame 3 and the heat insulating material 1b is at least narrowed. A protruding portion 55 is provided. In FIG. 1, the area surrounded by the broken line is enlarged and shown in the lower right. As shown in FIG. 1, the protrusion 55 not only narrows the gap Y, but also closes the gap Y by the protrusion 55. The protrusion 55 may be configured to only narrow the width of the gap Y, but as shown in FIG. 1, it is preferable to have a configuration that closes the gap Y. By doing so, the movement of air through the gap Y can be further suppressed.

More specifically, the projecting portions 55 of FIGS. 1, 4, and 5 close the gap Y in a state of being reconstructably deformed, and can be deformed following fluctuations in the width of the gap Y. That is, the protruding portion 55 is in contact with the side plate portion 42 of the second vertical frame portion 6 in a curved state so that the length of the gap Y in the width direction can be changed by the restoring force. Therefore, for example, when the width of the gap Y is widened, the length of the protruding portion 55 in the width direction of the gap Y becomes long due to the restoring force. On the contrary, when the width of the gap Y is narrowed, the protruding portion 55 is further deformed so as to be bent, and the length of the gap Y in the width direction is shortened. As described above, according to the protruding portion 55, it can be deformed by following the fluctuation of the width of the gap Y.

The protruding portion 55 is composed of a resin fin portion provided in a part of the heat insulating portion 11b of the sash vertical frame 11 of the sash frame 3 and which becomes thinner as it approaches the heat insulating material 1b.

The present invention relates to a frame structure, a sash unit, and an opening structure.

1: Outer wall part 1a: Exterior material 1b: Insulation material 1c: Interior material 2: Opening 3: Sash frame 4: First vertical frame part 4a: Mounting surface 5: Horizontal frame part 5a: Mounting surface 6: Second vertical frame Part 6a: 1st skeleton mounting part 6b: 2nd skeleton mounting part 9: Insulation material 10: Joinery 10a: Glass plate 10b: Frame 11: Sash vertical frame 11a: Main body part 11b: Insulation part 11c: Protruding plate part 12: Sash Horizontal frame 12a: Main body 12c: Protruding plate 21: Bottom plate 22: First side plate 22a: Protruding 23: Second side plate 31: First vertical plate 32: First horizontal plate 33: Second vertical Plate 34: Tip plate 35: Second horizontal plate 36: Base plate 41: Front plate 42: Side plate 43: Rear end plate 55: Projection 91: Interior frame 100: Frame structure 200 : Sash unit 304: First vertical frame portion 304a: Mounting surface 321: Bottom plate portion 322: First side plate portion 323: Second side plate portion Y: Gap A: Thickness direction of outer wall portion B: Width direction C of horizontal frame portion: Direction perpendicular to the thickness direction of the body wall

Claims (5)

A frame structure that allows the sash frame to be attached to the structural frame of a building.
The first vertical frame portion to which the sash frame can be attached and
A horizontal frame portion that is integrally configured with the first vertical frame portion or is attached to the first vertical frame portion.
A second vertical frame portion that is integrally configured with the horizontal frame portion or is attached to the horizontal frame portion is provided.
A frame structure characterized in that the first vertical frame portion and the second vertical frame portion are arranged at positions separated from each other in the width direction of the horizontal frame portion. A plurality of the horizontal frame portions are provided at different positions in the vertical direction.
The first vertical frame portion is arranged at a position sandwiched between the plurality of horizontal frame portions in the vertical direction.
The frame structure according to claim 1, wherein the second vertical frame portion is arranged at a position on one side in the width direction with respect to the plurality of horizontal frame portions. 2. The frame structure described in. The frame structure according to any one of claims 1 to 3, wherein the first vertical frame portion and the second vertical frame portion are arranged at overlapping positions in the width direction. body. The first vertical frame portion includes a mounting surface on which the sash frame can be mounted.
The mounting surface according to claim 1 to 4, wherein the mounting surface is formed of a surface of the first vertical frame portion on the side opposite to the side on which the second vertical frame portion is located in the width direction. The frame structure according to any one.

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