JP7158542B2 - Sash unit and opening structure - Google Patents

Description

The present invention relates to frame structures, sash units and opening structures.

Conventionally, frame structures have been used to attach sashes, including sash frames, to the structural framework of buildings. Patent Literature 1 discloses, as this type of frame structure, an opening panel configured by combining a vertical frame and a horizontal frame for attaching a sash to a building skeleton.

JP-A-5-302385

However, in Patent Document 1, although it is described that the sash is attached to the building frame using the opening panel, there is no reference to the formation method or formation position of the insulation line of the building when using the opening panel. not

SUMMARY OF THE INVENTION Accordingly, 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 insulating lines in buildings.

A frame structure as a first aspect of the present invention is a frame structure in which a sash frame can be attached to a structural framework of a building, comprising: a first vertical frame portion to which the sash frame can be attached; A horizontal frame portion integrally configured with a vertical frame portion or attached to the first frame portion, and a horizontal frame portion integrally configured with the horizontal frame portion or attached to the horizontal frame portion and a second vertical frame portion, wherein 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. be.

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 frames in the vertical direction. Preferably, 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.

As one embodiment of the present invention, the second vertical frame portion may be provided with a frame attachment portion that protrudes vertically upward and downward from the horizontal frame portion and is attachable to the structural frame 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 to which the sash frame can be mounted, and the mounting surface is the second vertical frame portion in the width direction of the first vertical frame portion. It is preferable that it is configured by a surface on the side opposite to the side on which the vertical frame portion is located.

A sash unit as a second aspect of the present invention comprises a sash frame, a lateral frame portion to which the sash frame is attached directly and/or indirectly via a separate member, and the lateral a vertical frame portion integrally formed with the frame portion or attached to the horizontal frame portion, wherein the sash frame and the vertical frame portion are spaced apart in the width direction of the horizontal frame portion It is characterized by being arranged at a position.

An opening structure as a third aspect of the present invention comprises a sash frame arranged along a peripheral end surface of an outer wall section that defines the periphery of the opening, and the sash frame directly and/or , a horizontal frame portion indirectly attached via a separate member, and a vertical frame portion integrally configured with the horizontal frame portion or attached to the horizontal frame portion, The sash frame and the vertical frame portion are characterized in that they are arranged at positions spaced apart 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 insulation lines for buildings.

1 is a diagram showing an opening structure as an embodiment of the present invention, and an enlarged diagram showing a portion of the opening structure surrounded by broken lines. FIG. FIG. 2 is a perspective view showing a frame structure as one embodiment of the present invention, which constitutes the opening structure shown in FIG. 1; 3 is a perspective view showing a sash unit as one embodiment of the present invention, which is configured by attaching a sash frame to the frame structure shown in FIG. 2. FIG. 2 is a diagram showing a modification of the opening structure shown in FIG. 1; FIG. FIG. 4 is a diagram showing an opening structure as one embodiment of the present invention;

Hereinafter, an opening structure and a building according to the present invention will be described by way of example with reference to FIGS. 1 to 5. FIG. The same reference numerals are given to the members/parts that are common in each figure.

FIG. 1 is a diagram showing an opening structure as one embodiment of the present invention. FIG. 1 shows a horizontal cross-section of the aperture structure. In addition, the part surrounded by the broken line in the opening structure of FIG. 1 is separately enlarged and shown in the lower right. FIG. 2 is a perspective view of a frame structure 100 according to one embodiment of the invention, forming part of the aperture structure shown in FIG. 3 is an exploded view of a sash unit 200 forming part of the opening structure shown in FIG. First, an outline of a building having an 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 framework. a fixed superstructure; In addition, the frame members that constitute the frame frame are standardized (standardized) in advance, and are manufactured in a factory in advance and then transported to and assembled at a construction site.

The frame structure of the upper structure is composed of a plurality of columns and a plurality of beams. An exterior material or the like that constitutes an outer peripheral wall is arranged on the outer peripheral portion of the frame frame. In addition, floor slabs and the like that constitute the floor are arranged between the layers of the frame structure. Furthermore, roof floor slabs and the like that form a flat roof are placed above the framework.

The outer wall of the building is composed of, for example, a panel-like exterior material made of lightweight cellular concrete (ALC) with a coating film as a waterproof layer formed on the surface side, and an external finishing layer, for example, phenolic foam. Composed of a heat insulating layer composed of foamed resin panel-shaped heat insulating material connected along the inner surface of the exterior finishing layer, and finishing materials such as wall cloth attached to the surface of the gypsum boat and gypsum board. and an internal finish layer, but is not limited to this configuration. The outer peripheral wall has at least predetermined fireproof performance and waterproof performance. Note that the building of this embodiment has a so-called "external heat insulation structure", in which heat insulating materials are arranged on the outdoor side in the thickness direction of the outer peripheral wall with respect to the columns and beams that constitute the frame structure. .

The floor of the building includes floor slabs. The floor slab material is installed between the beams of the frame frame and directly or indirectly supported by the beams. As the floor slab material, for example, an ALC panel can be used, but other members such as a folded plate, an extruded cement board, and a wooden panel material may also be used. In addition to the floor slab material, the floor is, for example, directly or indirectly attached to the floor slab material, the ceiling interior material constituting the ceiling surface of the first floor as a lower floor, It may also include a floor interior material such as flooring that constitutes the floor surface of the second floor as the upper floor.

ALC panels can also be used for the roof floor slab material that constitutes the flat roof, but they are not limited to ALC panels. Moreover, the roof floor slab material is waterproofed by being covered with a waterproof sheet or the like made of, for example, vinyl chloride resin. Moreover, 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. FIG.

As shown in FIG. 1, the outer wall 1 has an opening 2 formed therein. The opening 2 is bounded by a peripheral edge facing the opening 2 of the outer wall 1 . Hereinafter, the outdoor side in the thickness direction A of the outer wall section 1 may be simply referred to as the "outdoor side", and the indoor side in the thickness direction A of the outer wall section 1 may simply be 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 outer peripheral wall described above is one aspect of the outer wall portion 1 .

More specifically, the outer wall portion 1 of the present embodiment includes a panel-shaped exterior material 1a facing the outdoor space and a panel-shaped heat insulating material 1b positioned 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 located on the indoor side of the heat insulating material 1b in the thickness direction A and composed of a gypsum board and a finishing material such as a wall cloth attached to the surface of the gypsum board. In addition, the heat insulating material 1b of this embodiment is positioned on the outdoor side in the thickness direction A of the outer wall portion 1 with respect to the columns and beams that constitute the frame structure. The airtight line of the outer wall portion 1 of this embodiment is formed on the indoor side of the heat insulating line.

The opening 2 is an opening such as a window or a doorway formed in the outer wall 1 . In the opening structure shown in FIG. 1, a window is shown as the opening 2, but it may be, for example, a doorway that allows movement between an indoor space and an outdoor space.

The opening structure shown in FIG. It is provided with two vertical frame parts 6 and fittings 10. - 特許庁

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

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

The sash frame 3 is arranged along the peripheral end surface of the outer wall 1 that defines 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 positioned around the fittings 10 and holds the fittings 10 so as to be openable and closable. 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 glass plate 10a and a stile 10b as a frame material for the double glass plate 10a, but is not limited to this structure. do not have. Further, in this embodiment, an example in which the fitting 10 is attached to the opening 2 is shown, but the configuration is not limited to this, and a configuration in which a fitting window is provided, for example, may be employed.

As shown in FIG. 3, the sash frame 3 of this embodiment includes two vertical sash frames 11 located on both sides of the opening 2 in the horizontal direction, and two vertical sash frames 11 that are installed between the two vertical sash frames 11. and a sash horizontal frame 12. In FIG. 1, two vertical sash frames 11 of the sash frame 3 are shown.

The sash vertical frame 11 has a main body portion 11a made of metal such as aluminum, and is fastened to the main body portion 11a with screws, screws, or the like, or is fitted and integrated with vinyl chloride or the like. It is provided with a heat insulating portion 11b made of resin and a protruding plate portion 11c protruding from the main body portion 11a toward the peripheral end face side of the outer wall portion 1. As shown in FIG. Note that the heat insulating portion 11b has higher heat insulating performance than the main body portion 11a. Also, 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 that protrudes from the main body portion 12a toward the peripheral end face side of the outer wall portion 1 . In addition, the sash horizontal frame 12 may be configured to include a heat insulating portion made of 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 sash frame 3 can be mounted. is installed. As shown in FIGS. 1 and 3 , two first vertical frame portions 4 are horizontally spaced apart, and between these two first vertical frame portions 4, part of the sash frame 3 is embedded. More specifically, the main body portions 11a and heat insulating portions 11b of the two sash vertical frames 11 of the sash frame 3 and the main body portions 12a of the two sash horizontal frames 12 of the sash frame 3 are combined into two first vertical frame portions 4. It is fitted in between from the outdoor side in the thickness direction A toward the indoor side. The fitting is completed at a position where the projecting plate portion 11c of the sash vertical frame 11 of the sash frame 3 contacts 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 the position where the protruding plate portion 12c of the sash lateral frame 12 of the sash frame 3 comes into contact with the mounting surface 5a of the lateral frame portion 5 described later (see FIG. 3). ). Thus, the sash frame 3 of this embodiment is positioned with respect to the first vertical frame portion 4 and the horizontal frame portion 5 .

Moreover, 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 aligned with the width direction B of the horizontal frame portion 5 (in the opening structure of FIG. 1, the thickness direction A of the outer wall portion 1). in the same direction) on the side opposite to the side on which the second vertical frame portion 6 is located (the surface on the outdoor side in FIG. 1). Moreover, a plurality of insertion holes are formed in the mounting surface 4a. 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 is inserted through both the insertion hole of the mounting surface 4a of the first vertical frame portion 4 and the insertion hole of the projecting plate portion 11c of the sash vertical frame 11, the first vertical frame portion A sash frame 3 can be directly attached to 4 .

The first vertical frame portion 4 of the present embodiment is a long member made of steel and having a U-shaped cross-sectional shape. A first side plate portion 22 and a second side plate portion 23 are provided. The first vertical frame portion 4 of the present embodiment extends vertically so that the opening of the U-shaped elongated member faces the opening portion 2 side, and the first side plate is positioned on the outdoor side. The surface of the portion 22 on the outdoor side constitutes the mounting surface 4a described above. In addition, the bottom plate portion 21 is in contact with the end surface of the exterior material 1a of the outer wall portion 1 on the opening portion 2 side.

Furthermore, 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 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 is wider 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 formed to protrude. Then, the bottom plate portion 21 and the second side plate portion 23 of the first vertical frame portion 4 are separated from the two horizontal frame portions 5 until the projecting portion 22a of the first side plate portion 22 contacts the mounting surface 5a of the horizontal frame portion 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 . Insertion holes are formed in the mounting surface 5a of the horizontal frame portion 5 and the projecting portion 22a of the first side plate portion 22 . With the projecting 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 screw is inserted into the insertion hole of the projecting portion 22a and the insertion hole of the mounting surface 5a. , and fastening the projecting portion 22 and the mounting surface 5 a , the first vertical frame portion 4 can be directly mounted to the horizontal frame portion 5 .

As shown in FIG. 1 , when 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 separated from each other by the horizontal frame portion 5 . are spaced apart in the width direction B (the same direction as the thickness direction A in the opening structure of FIG. 1). Details of this 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). same position). Such an arrangement makes it easier to secure a large opening 2 . Details of this will also be described later.

The sash frame 3 is indirectly attached to the horizontal frame portion 5 of the present embodiment via the 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 attachment surface 4a. As described above, the first vertical frame portion 4 is directly attached to the horizontal frame portion 5 by using the projecting 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 .

Furthermore, the sash frame 3 is directly attached to the horizontal frame portion 5 of the present embodiment at a position different from the position at which 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 is also indirectly attached to the horizontal frame portion 5 via the first vertical frame portion 4 as a separate member. mounted against.

The sash frame 3 may be directly and indirectly attached to the horizontal frame portion 5, or may be attached only indirectly via a separate member. It may be configured to be attached by both means of the target. A specific example of a 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 separately from the above-described first vertical frame portion 4, and is attached to the first vertical frame portion 4 using fastening members such as screws and screws. Although it is attached by being fastened, it is not limited to this configuration, and the horizontal frame portion may be configured integrally with the first vertical frame portion.

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 an elongated member extending in the horizontal direction. Further, the horizontal frame portion 5 of the present embodiment is made of steel. 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 horizontally protruding from the upper end of the first vertical plate portion 31. a second vertical plate portion 33 extending downward in the vertical direction from the tip of the first horizontal plate portion 32; and a 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 projecting from the lower end of the first vertical plate portion 31 in the same direction as the first horizontal plate portion 32, and the second horizontal plate portion 35 and a proximal end plate portion 36 extending upward in the vertical direction from the distal end of the.

Both of the two horizontal frame portions 5 of this embodiment have the same shape. However, the two horizontal frame portions 5 are arranged vertically symmetrically, 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 portions 23 of the first vertical frame portion 4 of the present embodiment described above are the same as those of the first horizontal plate portions 32 of the two horizontal frame portions 5. placed in between.

The first vertical plate portion 31 extends substantially parallel to the second vertical frame portion 6, which will be described later, and is attached to the second vertical frame portion 6 by fastening using fastening members such as screws and screws. . 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 5 a of the horizontal frame portion 5 . That is, by fastening the projecting plate portion 12c of the lateral sash frame 12 of the sash frame 3 and the mounting surface 5a of the lateral frame portion 5 with fastening members such as screws, the sash frame 3 can be attached to the lateral frame. It can be attached to part 5. In this way, the sash frame 3 can be attached directly to the horizontal frame portion 5. As shown in FIG.

More specifically, the projecting plate portion 12c of the sash horizontal frame 12 is formed with a plurality of insertion holes. A plurality of insertion holes are also formed in the second vertical plate portion 33 forming the mounting surface 5a of the horizontal frame portion 5. As shown in FIG. Therefore, by inserting a fastening member such as a screw or a screw through the insertion hole of the projecting plate portion 12c and the insertion hole of the second vertical plate portion 33 and fastening them, the projecting plate portion 12c is attached to the mounting surface. 5a. In this manner, the sash frame 3 can be directly attached to the lateral frame portion 5.

The 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 separately from the horizontal frame portion 5 described above, and is fastened to the horizontal frame portion 5 using fastening members such as screws and screws. However, the configuration is not limited to this configuration, and the second vertical frame section may be configured integrally with the horizontal frame section 5 .

The second vertical frame portion 6 is arranged on one side of the horizontal frame portions 5 in the width direction B (the same direction as the thickness direction A in the opening structure of FIG. 1) of the horizontal frame portions 5. 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 this embodiment, two second vertical frame portions 6 are provided. Each of the second vertical frame portions 6 of this embodiment is composed of an elongated member extending in the vertical direction. Furthermore, the second vertical frame portion 6 of the present embodiment is made of steel. The second vertical frame portion 6 includes a front plate portion 41 facing the side of the horizontal frame portion 5, a side plate portion 42 extending from one end of the front plate portion 41 toward the rear side, and the side plate portions A rear end plate portion 43 protruding from the rear end of 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 portion 42 is arranged on the opening portion 2 side with respect to the front plate portion 41 .

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, the above-described horizontal frame portion 5 is configured to have two second vertical frame portions 6. mounted against.

In addition, the second vertical frame portion 6 protrudes vertically upward and downward from the horizontal frame portion 5, and includes frame attachment portions that can be attached to the structural frame of the building. Specifically, the second vertical frame portion 6 of the present embodiment protrudes upward in the vertical direction from the horizontal frame portion 5 and includes a first frame attachment portion 6a that can be attached to a steel beam as the structural frame of the building. In addition, the second vertical frame portion 6 of the present embodiment protrudes downward in the vertical direction from the horizontal frame portion 5 and includes a second frame attachment portion 6b that can be attached to a steel beam as the structural frame of the 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 using 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 compared to the case where the first vertical frame portion 4 and the second vertical frame portion 6 are not separated in the width direction B of the horizontal frame portion 5. easy. In other words, 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 an arrangement position for the heat insulating material. Even if two vertical frame portions 6 are provided, it is possible to easily form a continuous heat insulation line along the extending direction of the horizontal frame portions 5 .

In addition, in the opening structure shown in FIG. 1, in the width direction B of the horizontal frame portion 5 (the same direction as the thickness direction A in FIG. 1), at a position between the first vertical frame portion 4 and the second vertical frame portion 6 A heat insulating material 9 separate from the heat insulating material 1b of the outer wall part 1 is arranged, and the heat insulating line is not divided between the heat insulating material 1b of the outer wall part 1 and the fittings 10 provided in the opening 2 and having heat insulating properties. I'm trying In this way, 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 facilitates the formation of the heat insulating line. can do.

In particular, in the present embodiment, in the width direction B of the horizontal frame portion 5, the first vertical frame portion 4 and the second vertical frame portion 6 are arranged at overlapping positions. By arranging in this way, compared to 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 first vertical frame portion 4 and the second vertical frame portion 4 The frame part 6 can be arranged nearby. Therefore, it becomes easy to ensure a large opening 2 while facilitating the formation of a heat insulating line.

Next, a modification of the opening structure shown in FIG. 1 will be described with reference to FIG. The opening structure shown in FIG. 4 differs 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 an elongated member made of steel and having a concave cross-sectional shape. and a second side plate portion 323 . The first vertical frame portion 304 shown in FIG. 4 extends vertically so that the opening of the concave long member faces the opening portion 2 side, and the first side plate portion 322 is positioned on the outdoor side. A mounting surface 304a to which the sash frame 3 can be mounted is configured by the surface on the outdoor side. In addition, the bottom plate portion 321 is in contact with the end face of the exterior material 1a of the outer wall portion 1 on the opening portion 2 side.

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 perpendicular to the thickness direction A (horizontal direction in FIG. 4) is the width of the first side plate portion 322 in the same direction C. It is longer than the width, and the second side plate portion 323 extends longer toward the opening 2 side than the first side plate portion 322 does. In the example shown in FIG. 4 , the sash frame 3 is positioned in contact with not only the mounting surface 304 a of the first side plate portion 322 but also the outdoor surface of the second side plate portion 323 . By doing so, the positioning accuracy of the sash frame 3 can be further enhanced.

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 differs from the opening structures shown in FIGS. 1 and 4 in that the first vertical frame portion is not provided, but the other structures are the same.

That is, the sash frame 3 shown in FIG. 5 is attached to the lateral frame portion 5 by the attachment surfaces 5a of the two lateral frame portions 5 positioned above and below in the vertical direction. position is not reinforced by another member. Thus, 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 reinforcement strength of the sash frame 3, it is preferable to use the first vertical frame portion 4. FIG.

The frame structure, sash unit, and opening structure according to the present invention are not limited to the specific configurations described above, and various modifications and changes are possible without departing from the scope of claims. . For example, the opening structure shown in FIG. 1 is configured using the pre-assembled frame structure 100 shown in FIG. 2, but the opening structure may be entirely constructed on site. Similarly, although the opening structure shown in FIG. 1 is configured using the pre-assembled sash unit 200 shown in FIG. 3, the opening structure may be constructed entirely on site.

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

More specifically, the projecting portion 55 shown in FIGS. 1, 4, and 5 closes the gap Y in a restorably deformed state, and can be deformed to follow variations in the width of the gap Y. As shown in FIG. That is, the protruding portion 55 abuts on 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 increases, the length of the protrusion 55 in the width direction of the gap Y increases due to the restoring force. Conversely, when the width of the gap Y narrows, the projecting portion 55 is further bent and deformed, and the length of the gap Y in the width direction is shortened. Thus, according to the projecting portion 55, it is possible to follow the variation of the width of the gap Y and deform it.

The protruding portion 55 is formed by a resin fin portion which is provided in a portion of the heat insulating portion 11b of the sash vertical frame 11 of the sash frame 3 and which tapers toward the heat insulating material 1b.

The present invention relates to frame structures, sash units and opening structures.

1: Outer wall part 1a: Exterior material 1b: Heat insulating material 1c: Interior material 2: Opening part 3: Sash frame 4: First vertical frame part 4a: Mounting surface 5: Horizontal frame part 5a: Mounting surface 6: Second vertical frame Part 6a: First frame mounting portion 6b: Second frame mounting portion 9: Heat insulating material 10: Fitting 10a: Glass plate 10b: Frame 11: Sash vertical frame 11a: Body portion 11b: Heat insulating portion 11c: Protruding plate portion 12: Sash Horizontal frame 12a: main body portion 12c: projecting plate portion 21: bottom plate portion 22: first side plate portion 22a: projecting portion 23: second side plate portion 31: first vertical plate portion 32: first horizontal plate portion 33: second vertical Plate portion 34: tip plate portion 35: second horizontal plate portion 36: base plate portion 41: front plate portion 42: side plate portion 43: rear plate portion 55: projecting portion 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 of horizontal frame portion C: A direction orthogonal to the thickness direction of the body wall

Claims (2)

a sash frame;
a lateral frame portion to which the sash frame is attached directly and/or indirectly via another member;
a vertical frame portion integrally configured with the horizontal frame portion or attached to the horizontal frame portion;
The sash frame has a portion that overlaps the vertical frame portion in the width direction of the horizontal frame portion,
A sash unit , wherein the portion of the sash frame and the vertical frame portion are arranged at positions separated from each other in the width direction of the horizontal frame portion. a sash frame arranged along the peripheral end surface of the outer wall section defining the opening;
a lateral frame portion to which the sash frame is attached directly and/or indirectly via another member;
a vertical frame portion integrally configured with the horizontal frame portion or attached to the horizontal frame portion;
The sash frame has a portion that overlaps the vertical frame portion in the width direction of the horizontal frame portion,
The opening structure , wherein the portion of the sash frame and the vertical frame portion are arranged at positions separated from each other in the width direction of the horizontal frame portion.

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