JP6985198B2 - Sash frame and opening structure - Google Patents

Description

The present invention relates to a sash frame and an opening structure installed in an opening of a building.

Conventionally, a sash frame that is installed in an opening such as a window of a building and constitutes a part of the opening structure is a rectangular frame consisting of a pair of vertical frames located on the left and right and a pair of horizontal frames located on the top and bottom. It is structured in a rectangular framework. Further, the connecting portion where the vertical frame and the horizontal frame are connected at the corner portion of the sash frame is connected so as to abut the end surface of the frame member on the losing side with the side surface of the frame member on the winning side.

Further, at the connection portion between the vertical frame and the horizontal frame of such a sash frame, a water blocking material (sealer material) for the purpose of filling a gap and improving water stopping is sandwiched between the connecting surfaces of the vertical frame and the horizontal frame. It is arranged in a closed state and constitutes a water stop line (see Patent Document 1).

Japanese Unexamined Patent Publication No. 10-61347

Here, FIG. 4 shows an enlarged view of the connection portion 12 between the vertical frame 13 and the horizontal frame 14 in the conventional sash frame 10. The connection portion 12 has a so-called "vertical win (vertical through)" connection structure in which the vertical frame 13 is the winning side, and the tip of the horizontal frame 14 in the axial direction with respect to the inner side surface 13a of the vertical frame 13. The surfaces 14a are arranged so as to be butted with each other via the waterproof material 15. Further, the vertical frame 13 and the horizontal frame 14 are fastened by using bolts B.

However, in such a sash frame 10, the vertical frame 13 is on the horizontal frame 14 side with the connecting portion with the horizontal frame 14 as a fulcrum, as shown by the two-dot chain line in FIG. 4, for example, due to the inter-story displacement of the building due to an earthquake. When deformed so as to be inclined to, compressive stress is concentrated on the upper portion 15a of the water blocking material 15, and there is a possibility that the water blocking material 15 may be unintentionally crushed and deformed or broken. In particular, when the vertical frame 13 on the winning side is formed in the shape of a hollow cylinder having a cavity inside to increase the strength, the vertical frame 13 is not easily deformed and the horizontal frame maintains a linear shape. Since it tilts to the 14 side, the compressive stress applied to the water blocking material 15 tends to increase. Further, when the vertical frame 13 tilts to the side away from the horizontal frame 14 with the connecting portion with the horizontal frame 14 as a fulcrum, which is opposite to the direction shown by the two-dot chain line in FIG. 4, the lower part of the water blocking material 15 is formed. A large compressive stress is applied to the 15b side, which may cause crushing deformation, breakage, or the like.

Therefore, the present invention has a sash frame and an opening structure having a structure capable of reducing the load on the water blocking material sandwiched between the vertical frame and the horizontal frame at the vertical frame, the horizontal frame, and the connecting portion in the sash frame. Is intended to provide.

The present invention has been made to solve the above problems, and the sash frame of the present invention is a sash frame in which the left and right vertical frames and the upper and lower horizontal frames are connected via a water blocking material. ,
Of the vertical frame and the horizontal frame, the winning side frame at the connecting portion has a hollow tubular portion extending in the axial direction of the winning side frame.
It is characterized in that a weakened portion is provided on the side wall of the hollow cylinder portion.

In the sash frame of the present invention, the weakened portion is located at a position that is twice the length of the water blocking material in the front view in the axial direction from the tip surface in the axial direction of the frame on the winning side. It is preferable that it is provided within the range up to.

Further, in the sash frame of the present invention, the weakened portion has a notch that opens in the axial tip surface of the hollow cylinder portion, a hole portion that penetrates the side wall of the hollow cylinder portion, and a plate of the side wall. It is preferably composed of at least one of thin-walled portions whose thickness is partially thinned.

Further, in the sash frame of the present invention, it is preferable that the frame on the winning side is the vertical frame.

Further, in the sash frame of the present invention, it is preferable that the weakened portion is provided on a surface other than the surface that becomes the outdoor side when mounted on the building.

Further, in the sash frame of the present invention, it is preferable that the weakened portion is provided at a position separated from the waterproof material.

Further, the opening structure of the present invention is an opening structure of a building provided with any of the above sash frames.
The weakened portion is configured so as not to be exposed to the indoor side.

According to the present invention, the sash frame and the opening structure having a structure capable of reducing the load on the waterproof material sandwiched between the vertical frame and the horizontal frame at the vertical frame, the horizontal frame and the connecting portion in the sash frame. Can be provided.

It is a front view which shows a part of the sash frame as one Embodiment of this invention. It is a front view which shows the state of deformation of the sash frame of FIG. It is a front view which shows the modification of the sash frame of FIG. It is a front view which shows a part (connection part) of the conventional sash frame.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The same reference numerals are given to common members / parts in each figure.

FIG. 1 is a front view showing a connection portion 2 of a sash frame 1 as an embodiment of the present invention. First, an example of a building to which the sash frame 1 shown in FIG. 1 can be mounted 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. 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. Further, a roof floor slab material or the like constituting a flat roof is arranged on the upper part of the frame frame. ALC panels can also be used for roof floor slab materials, but are not limited to ALC panels.

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 aerated concrete (ALC) having a coating film as a waterproof layer on the surface side thereof, 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, but is not limited to, an internal finishing layer. The outer wall has at least a predetermined waterproof performance.

The sash frame 1 is configured such that the upper and lower horizontal frames 4 made of a profile such as aluminum are framed above and below the left and right vertical frames 3 made of a profile such as aluminum. The sash frame 1 is installed along the inner peripheral edge of the opening in the building and constitutes a part of the opening structure. The opening structure is arranged, for example, in addition to the sash frame 1, a connecting member for connecting the sash frame 1 to the building frame, a reinforcing frame member for reinforcing the sash frame 1, and an indoor side of the sash frame 1. It may be provided with an interior material that imparts decorativeness and design, an exterior material that is arranged outside the room, or another member that enhances heat insulation, water stopping property, fire resistance, and the like.

The sash frame 1 is installed directly on the structural frame of the building or indirectly via other members. Further, the sash frame 1 can hold, for example, a shoji having one or more glass plates and a frame body that surrounds and holds the glass plates inside. The sash frame 1 may have, for example, a sliding structure in which two shoji screens are slidably held inside, or swinging around a hinge provided on one side of the four frames as a fulcrum. It may be an inward opening or outward opening type structure that can be opened and closed by displacement, or a so-called sash window type structure in which the shoji cannot be opened and closed.

In the sash frame 1, the left and right vertical frames 3 and the upper and lower horizontal frames 4 are vertically connected via the water blocking material 5 to form a rectangular frame as a whole. Therefore, connecting portions 2 are provided at each of the four corner portions of the rectangular sash frame 1.

The two vertical frames 3 in the sash frame 1 extend in the vertical direction and are located on both the left and right sides (both sides in the horizontal direction) of the rectangular sash frame 1.

Further, the upper and lower horizontal frames 4 in the sash frame 1 extend in the horizontal direction, respectively, and are erected between the pair of left and right vertical frames 3. The horizontal frame 4 has an upper horizontal frame that connects the upper portions of the two vertical frames 3 and a lower horizontal frame that connects the lower portions. Note that FIG. 1 shows a connection portion 2 on the lower right side of the sash frame 1 viewed from the indoor side, and the horizontal frame 4 shown in FIG. 1 is a lower horizontal frame.

The water blocking material 5 is sandwiched between the vertical frame 3 and the horizontal frame 4 at each connecting portion 2, and forms a water blocking line by filling the gap between the vertical frame 3 and the horizontal frame 4. Is. As the water blocking material 5, a sheet-shaped (plate-shaped) member made of various materials can be used, but it is preferable to use a sealing material having excellent weather resistance, watertightness, flexibility, and elasticity. ..

As shown in FIG. 1, the connection portion 2 of this example has a so-called “vertical win (vertical through)” connection structure in which the vertical frame 3 is the winning side frame with respect to the horizontal frame 4. That is, the tip surface 4a (edge surface) in the axial direction of the horizontal frame 4 is arranged so as to be abutted against the inner side surface 3a of the vertical frame 3 so as to sandwich the water blocking material 5. Further, the vertical frame 3 and the horizontal frame 4 in the connecting portion 2 are fastened by two bolts B, and the bolt B penetrates the inner side wall 3a and the water blocking material 5 of the vertical frame 3 to form a horizontal frame. It is concluded in 4. The shape of the water blocking material 5 corresponds to the shape of the tip surface 4a of the horizontal frame 4, and in this example, it has substantially the same shape as the tip surface 4a. The water blocking material 5 is arranged so as to cover the tip surface 4a.

The vertical frame 3 includes a hollow tubular portion 3b in which a cavity extending in the axial direction (longitudinal direction) of the vertical frame 3 is formed therein. The hollow tubular portion 3b has a ring shape in which the cross section perpendicular to the axial direction of the vertical frame 3 is closed without gaps over the entire circumference (except for the weakened portion 6 described later). In this example, the hollow cylinder portion 3b of the vertical frame 3 is described as a square cylinder having a quadrangular cross section, but the present invention is not limited to this, and for example, the hollow cylinder portion 3b may have a polygonal cylinder whose cross section is another polygon. can. Further, the vertical frame 3 may be made of a metal such as aluminum, but is not limited to this, and may be made of another metal or a resin having a predetermined strength. Further, the vertical frame 3 may be formed by combining a plurality of members having different materials or the same material.

The vertical frame 3 may have a portion around the sash frame 1 for improving heat insulation and water stopping. The portion for enhancing the heat insulating property and the water stopping property may be formed by attaching another member or the like. For example, a heat insulating portion made of a resin such as vinyl chloride can be attached by fastening with a fastener such as a screw, or by integrating by fitting the unevenness.

The horizontal frame 4 may be made of a metal such as aluminum, but is not limited to this, and may be made of another metal or a resin having a predetermined strength. Further, the horizontal frame 4 may be formed by combining a plurality of members having different materials or the same material. Further, the shape of the horizontal frame 4 is not particularly limited, and may be a profile having a cavity inside or a profile having no cavity inside.

The horizontal frame 4 may be equipped with other members or the like for enhancing the heat insulating property and the water blocking property around the sash frame 1. For example, a heat insulating portion made of a resin such as vinyl chloride can be attached by fastening with a fastener such as a screw, or by integrating by fitting the unevenness.

A weakening portion 6 is provided in the hollow tubular portion 3b of the vertical frame 3 (the frame on the winning side) in the connecting portion 2. The weakened portion 6 of this example is formed on the side wall 3c on the indoor side of the vertical frame 3, but is not limited to this. For example, it may be an outdoor side wall facing the indoor side wall 3c, a side wall 3d (inner side wall) on the horizontal frame 4 side perpendicular to the indoor side wall 3c, or an outer side wall 3e facing the inner side wall 3d. It may be provided in. Further, the weakened portion 6 of this example is configured by a slit-shaped notch that opens in the axial tip surface 3f (edge surface) of the vertical frame 3 in the connecting portion 2 and extends in the axial direction of the vertical frame 3. Has been done.

The weakened portion 6 is configured to reduce the strength of a part of the side wall (3c, 3d, 3e) constituting the hollow tubular portion 3b of the vertical frame 3 to cause a cross-sectional defect, and is not limited to the notch, but the side wall (3c). It may be a hole portion penetrating 3c, 3d, 3e), or a thin portion in which the plate thickness of the side wall (3c, 3d, 3e) is partially thinned. Further, at least two of the notch, the hole portion, and the thin-walled portion may be combined to form the weakening portion 6, and the weakening portion 6 may be provided not only at one location but also at a plurality of locations. It should be noted that the screw hole formed in the hollow tubular portion 3b only for the purpose of fixing the frame on the winning side to the frame on the losing side is not included in the "weakened portion" of the present invention.

Here, when the hollow cylinder portion 3b is provided in the vertical frame 3 as in this example, the strength is basically higher than in the case where the hollow cylinder portion 3b is not provided, so that the vertical frame 3 is curved. Or it becomes difficult to bend and deform. Therefore, for example, when an inter-story displacement occurs in a building due to an earthquake or the like, the vertical frame 3 is tilted toward the horizontal frame 4 side or the opposite side while maintaining a linear shape in the axial direction, and the vertical frame 3 is included in the vertical frame 3. A large compressive stress is applied to the water blocking material 5 located between the side surface 3a and the tip surface 4a of the horizontal frame 4, particularly the upper portion 5a or the lower portion 5b, which may cause crushing deformation or breakage.

On the other hand, in the sash frame 1 of the present embodiment, since the vertical frame 3 is provided with the weakening portion 6, when the vertical frame 3 is tilted with respect to the horizontal frame 4 as described above, the figure is shown. As shown in 2, since the vertical frame 3 is preferentially deformed so as to bend in the vicinity of the upper end portion 6a of the weakened portion 6, the compressive stress applied to the upper portion 5a of the waterproof material 5 can be reduced. Therefore, according to the sash frame 1 of the present embodiment, the load on the water blocking material 5 can be reduced, and unintentional crushing deformation, breakage, etc. of the water blocking material 5 can be prevented. Further, in the sash frame 1 of the present embodiment, the weakened portion 6 can be formed only by providing a notch, a through hole, a thin-walled portion, or the like with respect to the existing frame material, so that the existing sash assembly can be formed. Structures can be used.

The weakened portion 6 is twice (2L) the extending length L of the water blocking material 5 in the front view in the axial direction from the tip surface 3f in the axial direction of the frame on the winning side (vertical frame 3 in this example). It is preferable that it is provided within the range up to the position where. With such a configuration, the position of the starting point of the deformation of the vertical frame 3 can be set in the vicinity of the water blocking material 5, so that the load on the water blocking material 5 can be reduced more reliably. The weakening portion 6 is preferably provided in the vicinity of the water blocking material 5, and according to this, the effect of reducing the compressive stress on the water blocking material 5 can be more reliably exerted.

Further, it is preferable that the weakening portion 6 is provided on a surface other than the surface that is the outdoor side when mounted on the building. With such a configuration, it is possible to prevent the notch constituting the weakened portion 6 and the deformation of the vertical frame 3 generated in the weakened portion 6 from being exposed to the outside, so that deterioration of the design can be prevented.

Further, it is preferable that the weakening portion 6 is provided at a position separated from the water blocking material 5. In other words, the weakening portion 6 is preferably provided at a position where it does not come into contact with the water blocking material 5, which can prevent a decrease in water stopping property.

Further, in the opening structure of the building provided with the sash frame 1 as described above, it is preferable that the weakened portion 6 is configured so as not to be exposed to the indoor side. That is, for example, by covering the weakened portion 6 of the sash frame 1 from the indoor side with a member such as an interior frame constituting the opening structure, a notch constituting the weakened portion 6 and a weakened portion 6 are generated. It is possible to prevent deterioration of the design due to the exposure of the deformation of the vertical frame 3. Alternatively, the weakened portion 6 may be provided on a side wall other than the side wall 3c on the indoor side, or the weakened portion 6 may be used as a thinned portion and the inner surface side of the side wall 3c may be scraped.

The sash frame and opening structure according to the present invention are not limited to the configuration of the above-described embodiment, and can be realized by various configurations within the range not deviating from the contents described in the claims. Is. For example, FIG. 3 shows a sash frame 1'as a modification, and a notch-shaped weakened portion 6', which is wider than the examples of FIGS. 1 and 2, is provided on the side wall 3c on the indoor side of the vertical frame 3. It is provided. Even in such a case, the same effect as in the examples of FIGS. 1 and 2 can be obtained. By changing the shape and size of the weakened portion 6', the ease of deformation can be adjusted.

Further, in the previous embodiment, the vertical frame 3 is the winning side of the vertical winning connection portion 2, but the horizontal frame may be the winning side. In this case, the horizontal frame on the winning side has a hollow tubular portion, and the hollow tubular portion is provided with a weakened portion. Further, even in this case, when the vertical frame is deformed so as to be tilted with respect to the horizontal frame, the weakened portion having low strength is preferentially deformed, so that the load applied to the water blocking material can be reduced. ..

1, 1': Sash frame 2: Connection part 3: Vertical frame (winning side frame)
3a: Inner side surface 3b: Hollow cylinder 3c: Indoor side wall 3d: Inner side wall 3e: Outer side wall 3f: Tip surface 4: Horizontal frame 4a: Tip surface 5: Water blocking material 5a: Water blocking material upper part 5b: Stop Lower part of water material 6, 6': Weakened part 6a: Upper end of weakened part 10: Sash frame 12: Connection part 13: Vertical frame (winning side frame)
13a: Inner side surface of vertical frame 13b: Tip surface 13c:
14: Horizontal frame 14a: Tip surface in the axial direction of the horizontal frame 15: Water blocking material 15a: Upper part of water blocking material 15b: Lower part of water blocking material B: Bolt

Claims (7)

The left and right vertical frames and the upper and lower horizontal frames are sash frames connected via a waterproof material.
Of the vertical frame and the horizontal frame, the winning side frame at the connecting portion has a hollow tubular portion extending in the axial direction of the winning side frame.
A sash frame characterized in that a weakened portion is provided on the side wall of the hollow tubular portion. The weakened portion is provided within a range from the axial tip surface of the hollow cylinder portion of the connecting portion to a position in the axial direction that is twice the extending length of the water blocking material. The sash frame according to claim 1. The weakened portion has a notch that opens in the axial tip surface of the hollow cylinder portion in the connection portion, a hole portion that penetrates the side wall of the hollow cylinder portion, and a plate thickness of the side wall is partially reduced. The sash frame according to claim 1 or 2, which is composed of at least one of the thin-walled portions. The sash frame according to any one of claims 1 to 3, wherein the frame on the winning side is the vertical frame. The sash frame according to any one of claims 1 to 4, wherein the weakened portion is provided on a surface other than the surface that becomes the outdoor side when the sash frame is attached to the building. The sash frame according to any one of claims 1 to 5, wherein the weakened portion is provided at a position separated from the waterproof material. An opening structure of a building provided with the sash frame according to any one of claims 1 to 6.
An opening structure in which the weakened portion is configured so as not to be exposed to the indoor side.

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