JP7620527B2 - Fittings - Google Patents

Description

The present invention relates to a fitting that includes a vertical frame that constitutes a frame body, a panel that is provided on the inner periphery of the frame body, and a vertical frame attachment that is provided between the vertical frame and the panel material.

Windows installed in buildings may have a surface material such as glass attached to the inner circumference of the frame. Depending on the specifications, attachments may be placed between the frame material and the surface material that make up the frame. As shown in Patent Document 1, attachments are effective in cases such as row windows and stepped windows, where different types of windows need to be installed in combination with a frame material of the same cross section.

Japanese Utility Model Application Publication No. 61-020773

When there is a difference in air pressure between the inside and outside of the room, rainwater can seep into the room from the contact surface between the frame material and the attachment, so it is necessary to install a seal in the path of this infiltration. Since there is a concern that rainwater may seep in if the seal is not installed properly, the work must be carried out carefully. Furthermore, installing a seal increases costs.

The present invention was made in consideration of the above problems, and aims to provide fittings that can improve workability and reduce costs while maintaining waterproofing.

In order to solve the above-mentioned problems and achieve the object, the fitting according to the present invention has at least one of the left and right vertical frames constituting a frame body, a surface material provided on the inner periphery of the frame body, and a vertical frame attachment provided between the vertical frame and the surface material, the inner peripheral surface of the vertical frame and the vertical frame attachment form a first space communicating in the vertical direction, and a second space communicating in the vertical direction on the indoor side of the first space, the vertical frame attachment has an outdoor partition part that abuts against the inner peripheral surface of the vertical frame to separate the first space from the outside, an intermediate partition part that abuts against the inner peripheral surface of the vertical frame to separate the first space from the outside, and an indoor partition part that abuts against the inner peripheral surface of the vertical frame to separate the second space from the inside of the room, and the first space and the second space are connected to the outside.

In the fittings of the present invention, the first space and the second space formed by the inner peripheral surface of the vertical frame and the vertical frame attachment are separated from each other by an intermediate partition, and the lower end is connected to the outside. As a result, the first space and the second space are spaces of equal pressure to the outside air pressure. Since the first space is at the same pressure as the outside air pressure, it does not have the effect of absorbing water, and water from the outside is unlikely to penetrate. Since the second space is at the same pressure as the first space, it does not have the effect of absorbing water, and water from the first space is unlikely to penetrate. In this way, in the present invention, the first space and the second space provide a double water-stopping effect, and the water-stopping effect is maintained even without providing a seal. Since no seal is required, the workability of assembling the fittings is improved and costs can be reduced.

FIG. 1 is an overall view of a fitting according to an embodiment of the present invention, as viewed from the inside of a room. 2 is a vertical cross-sectional view taken along the line II-II in FIG. 1 . 3 is a vertical cross-sectional view taken along the line III-III in FIG. 1. 4 is a cross-sectional view taken along the line IV-IV in FIG. 1. 2 is a cross-sectional view taken along the line V-V in FIG. 1 . An enlarged cross-sectional view of a portion of the left vertical frame, vertical frame attachment and surface material. A partially enlarged cross-sectional view showing the state in which the panel is attached to the left vertical frame by the vertical frame attachment of the modified example. This is an oblique view of the joint between the vertical frame, the lower frame, and the vertical frame attachment, viewed diagonally from above on the outside of the room. This is an oblique view of the joint between the lower frame and the vertical frame attachment, viewed diagonally from above on the inside of the room. A partially enlarged horizontal and vertical view of the upper frame, upper frame attachment and surface material. This is a perspective view of the joint between the vertical frame, the upper frame, the vertical frame attachment, and the upper frame attachment, viewed from diagonally below on the outside of the room. This is an oblique view of the joint between the upper frame, upper frame attachment, and vertical frame attachment, viewed diagonally from above inside the room.

Below, an embodiment of the fitting according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to this embodiment.

Figure 1 is an overall view of a fitting 10 according to an embodiment of the present invention, as viewed from the inside of a room. Figure 2 is a vertical cross-sectional view taken along the lines II-II in Figure 1. Figure 3 is a vertical cross-sectional view taken along the lines III-III in Figure 1. Figure 4 is a horizontal cross-sectional view taken along the lines IV-IV in Figure 1. Figure 5 is a horizontal cross-sectional view taken along the lines V-V in Figure 1. In the following explanation, the notations left and right refer to the state as viewed from the inside of the room, i.e., based on Figure 1.

The fitting 10 is framed all around by the left vertical frame 12, the right vertical frame 14, and the upper and lower frames 16 and 18 arranged between the vertical frames 12, 14, and further, vertical ribs 20 are arranged between the upper and lower frames 16, 18, and further, a joiner 22 is arranged between the vertical ribs 20 and the left vertical frame 12.

In this application, the prospective direction refers to the indoor/outdoor direction of the fixture 10 (in Figure 1, the direction perpendicular to the paper). The prospective surface refers to a surface that extends along the prospective direction. The visible direction is the direction perpendicular to the prospective direction, and in the case of a vertical frame 12 that is long in the vertical direction, it refers to the left-right direction perpendicular to the longitudinal direction, and in the case of an upper frame 16 that is long in the horizontal direction, it refers to the up-down direction perpendicular to the longitudinal direction. The visible surface refers to a surface that is along the prospective direction.

The fitting 10 is considered to have an outer frame formed by the vertical frame 12, vertical frame 14, upper frame 16 and lower frame 18, and a smaller frame formed inside. The three frame bodies are the first frame body 24a formed by the left vertical frame 12, vertical bone 20, lattice 22 and lower frame 18, the second frame body 24b composed of the left vertical frame 12, vertical bone 20, upper frame 16 and lattice 22, and the third frame body 24c composed of the vertical bone 20, right vertical frame 14, upper frame 16 and lower frame 18. The first frame body 24a and the second frame body 24b arranged vertically form a stepped window. The first frame body 24a and the second frame body 24b on the left side and the third frame body 24c on the right side form a continuous window. In this way, the fitting 10 is a so-called continuous stepped window. However, the fixtures to which this invention can be applied are not limited to row windows and stepped windows, but can also be applied to windows in which the panel is held by an attachment to the frame material that makes up the frame.

The first frame 24a has a fixed window formed by a surface material 26. The second frame 24b has a screen 28 supported by frames on all four sides. The screen 28 forms a vertical sliding window that opens to protrude to the outside of the room by an opening and closing mechanism provided on the second frame 24b. The third frame 24c has a fixed window formed by a surface material 30. The surface materials 26 and 30 are, for example, laminated glass.

The frame materials constituting the vertical frame 12, vertical frame 14, upper frame 16, lower frame 18, vertical bones 20, and crossbeams 22 are extruded shapes made of metal such as aluminum alloy, or resin. When resin is used for these frame materials, metal reinforcing materials may be provided as appropriate. The vertical frames 12 and vertical frames 14 use frame materials with the same cross-sectional shape. The inner side surface of the vertical frame 12 and the left side surface of the vertical bones 20 are symmetrical. The left side surface of the vertical bones 20 and the left side surface of the vertical frame 14 have the same shape. The inner side surface of the upper frame 16 and the lower side surface of the crossbeams 22 have the same shape.

As shown in Figure 5, the shoji screen 28 can be directly installed on the vertical frame 12 and vertical bones 20 via opening and closing mechanisms 28a, 28b. On the other hand, the face material 26 has a different outer peripheral shape from the shoji screen 28, so it is attached to the vertical frame 12 and vertical bones 20 via vertical frame attachments 32, 34. The upper part of the face material 26 is attached to the crossbeam 22 via an upper frame attachment 36. As shown in Figure 4, the face material 30 is attached to the vertical bones 20 and vertical frame 14 via vertical frame attachments 38, 40. The face material 30 is attached to the upper frame 16 via an upper frame attachment 42.

The vertical frame attachments 32, 34, 38, 40 and the top frame attachments 36, 42 are also referred to as attachment A. Attachment A is an extruded material made from metal such as aluminum alloy or resin. The vertical frame attachments 32, 34, 40 use frame materials with the same cross-sectional shape. The top frame attachments 36, 42 use frame materials with the same cross-sectional shape. By using such attachment A, it is possible to attach various types of panel materials and shoji screens to the frame materials that make up the row and stepped windows.

The following mainly describes the first frame body 24a, the vertical frame attachments 32, 34 and the upper frame attachment 36 that are attached to the inner peripheral surface of the first frame body 24a, and the parts related to them. Because the first frame body 24a forms a single frame body, for convenience of explanation, the vertical frame 20 is also referred to as the vertical frame 20, and the interlining 22 is also referred to as the upper frame 22. In other words, the first frame body 24a is a frame body that is framed on all four sides by the left vertical frame 12, the right vertical frame 20, the upper frame 22, and the lower frame 18.

Figure 6 is a partially enlarged cross-sectional view of the left vertical frame 12, vertical frame attachment 32, and panel 26. The panel 26 has multiple pieces of glass 26a and seals 26b provided around the entire periphery near the outer edges of the interior and exterior facing surfaces of the glass 26a. The above panel 30 also has a similar structure. The thickness of the panel 26 including the seals 26b is W1.

The seal 26b on the interior side of the panel 26 is supported by the second partition wall 60 described below, and the seal 26b on the exterior side is supported by the ridge 45. The ridge 45 has a visible surface piece 45a that supports the seal 26b on the exterior side, and a hidden surface piece 45b that extends from the outer peripheral end of the visible surface piece 45a toward the interior side of the room. A recess 45c is formed at the exterior intersection of the visible surface piece 45a and the hidden surface piece 45b.

The vertical frame attachment 32 can be divided into an exterior portion 32a that is narrow in the visible direction and is positioned on the outer periphery of the panel 26, and an interior portion 32b that is wide in the visible direction and is positioned inside the room relative to the exterior portion 32a and the panel 26. However, the exterior portion 32a and the interior portion 32b are conceptual divisions for ease of explanation. The exterior portion 32a is not exposed to the room. The interior portion 32b exposes the interior wall 62, which will be described later, to the room. A panel outer periphery space 44 is formed between the panel 26 and the exterior portion 32a of the vertical frame attachment 32.

The vertical frame attachment 32 has a first surface contact portion (middle partition portion) 46 and a second surface contact portion (outdoor partition portion) 48 that are formed along the projection direction and are in surface contact with the inner peripheral projection surface 12a of the vertical frame 12. The first surface contact portion 46 is formed along the projection direction from the outer peripheral end portion of the first partition wall 52 and is in surface contact with the inner peripheral projection surface 12a. Note that surface contact in this application refers to a wide surface recognized as the front or back surface of a fin- or plate-shaped member abutting against a contact object, and is distinguished from a narrow edge surface abutting against a contact object.

The first surface contact portion 46 is basically located at the boundary between the outdoor portion 32a and the indoor portion 32b, but in the example shown in FIG. 6, it protrudes slightly into the indoor portion 32b. A groove 46a is formed in the longitudinal direction in the center of the outer peripheral side visible surface of the first surface contact portion 46.

The second surface contact portion 48 extends from the end of the first space 58 in the projection direction to near the outdoor end of the indoor portion 32b, and is in surface contact with the inner peripheral projection surface 12a. The second surface contact portion 48 extends a moderate length, and its projection length occupies most of the outdoor portion 32a. The projection length of the second surface contact portion 48 is longer than that of the first surface contact portion 46.

The outdoor portion 32a is provided with a small wall 50 that protrudes slightly from the outdoor end toward the inner periphery, a first partition wall 52 that protrudes inward from the outdoor end of the first surface contact portion 46, a small piece 54 that protrudes from the inner periphery end of the first partition wall 52 toward the outdoor side, and an inclined wall 56 that protrudes diagonally from the middle of the small piece 54 toward the outer periphery. The first partition wall 52, the small piece 54, and the inclined wall 56 are almost in the outer peripheral space 44 of the panel, and form a first space 58 between the inner peripheral projection surface 12a of the vertical frame 12. The first space 58 is partitioned from the outside of the room by the second surface contact portion 48. The first space 58 has a small length in the viewing direction, and at least a part of it (almost the entirety in this case) is included in the area sandwiched between the outer peripheral projection surface (within the width W1 range) of the panel 26 and the inner peripheral projection surface 12a of the vertical frame 12. The first space 58 is connected in the vertical direction.

The tip 45ba of the projection surface piece 45b in the ridge 45 is bent slightly inward, and fits between the small piece 54 and the inclined wall 56, engaging with the tip of the small piece 54. The inclined wall 56 is the exterior wall of the first space 58, and is inclined from the interior side to the exterior side so as to approach the outer periphery. This inclined shape of the inclined wall 56 ensures a gap between the tip 45ba and the small piece 54, and also ensures that the first space 58 is appropriately wide. The first space 58 is formed on the outer periphery of the facing 26, so there is a restriction on the area, and the cross-sectional area is smaller than that of the second space 70 described later, but there is enough area to drain rainwater that seeps in from outside.

The inner peripheral end of the small wall 50 is bent toward the interior and engages with the recess 45c of the edge 45. A recess 48a is formed near the exterior end of the outer peripheral projection surface of the second surface contact portion 48. A protrusion 12aa formed on the inner peripheral projection surface 12a of the vertical frame 12 fits into the recess 48a.

The indoor portion 32b has a second partition wall 60, an interior wall 62, and an interior visible surface wall (indoor partition portion) 64. The second partition wall 60 extends moderately long from near the interior end of the small piece 54 toward the inner circumference. In this case, the first partition wall 52 and the second partition wall 60 extend almost in the same straight line along the visible direction. The interior wall 62 extends moderately long from the inner circumference end of the second partition wall 60 toward the interior along the visible direction. The interior visible surface wall 64 extends from the middle of the interior wall 62 toward the outer circumference, and its tip abuts the inner circumference visible surface 12a of the vertical frame 12.

An engagement piece 66 protrudes toward the outer periphery from a point slightly outside the tip of the indoor wall 62. A bent piece 68 is formed at the tip of the indoor wall 62. A wall 12b protrudes toward the inner periphery from the inner peripheral visible surface 12a of the vertical frame 12. A pocket 12c that opens to the outside is formed near the tip of the wall 12b. The tip of the engagement piece 66 is crank-shaped and engages with the pocket 12c. The bent piece 68 abuts against the tip of the wall 12b. In this way, the indoor side portion 32b of the vertical frame attachment 32 is fixed to the wall 12b of the vertical frame 12 by the engagement piece 66 and the bent piece 68.

The first partition wall 52, the second partition wall 60, the interior wall 62, and the interior facing wall 64 form a second space 70 between themselves and the inner peripheral facing surface 12a of the vertical frame 12. The second space 70 is separated from the interior of the room by the interior wall 62 and the interior facing wall 64. The interior wall 62 and the interior facing wall 64 form an auxiliary space 72 between themselves and the inner peripheral facing surface 12a and the wall 12b. The second space 70 and the auxiliary space 72 are connected in the vertical direction.

The first space 58 and the second space 70 are separated by the first partition wall 52 and the first surface contact portion 46. The second partition wall 60 corresponds to the exterior facing wall of the second space 70, and separates the panel outer peripheral space 44 from the second space 70, while abutting against and supporting the interior facing surface of the panel 26. The second space 70 is formed by the interior portion 32b that is not restricted by the panel 26, and a sufficiently large cross-sectional area is ensured.

In this way, the inner peripheral side visible surface 12a of the vertical frame 12 and the vertical frame attachment 32 form a first space 58 that communicates in the vertical direction, and a second space 70 that communicates in the vertical direction on the indoor side of the first space 58. Also, the first surface contact portion 46 abuts against the inner peripheral side visible surface 12a to separate the first space 58 and the second space 70, the second surface contact portion 48 abuts against the inner peripheral side visible surface 12a to separate the first space 58 from the outside, and the indoor side visible surface wall 64 abuts against the inner peripheral side visible surface 12a to separate the second space 70 from the room.

The first space 58, the second space 70, and the surface material outer peripheral space 44 are separated from the room. As described below, the first space 58, the second space 70, and the surface material outer peripheral space 44 are connected to the outside at their lower ends. Therefore, the pressure in the first space 58, the second space 70, and the surface material outer peripheral space 44 is different from the indoor pressure Pi, and each is an isobaric space with the same pressure as the outside air pressure Po.

The auxiliary space 72 also communicates with the outside at its lower end, and is basically at outside air pressure Po, but if the airtightness of the engagement points between the engagement piece 66 and the bent piece 68 and the wall 12b is somewhat low, the pressure can be intermediate between the indoor pressure Pi and the outdoor air pressure Po. The auxiliary space 72 then serves as a buffer zone between the second space 70 at the outdoor air pressure Po and the indoor pressure Pi. The second space 70 has a sufficiently large area, and since the auxiliary space 72, which is a buffer zone, is formed between the second space 70 and the inside of the room, the outdoor air pressure Po is maintained with almost no effect from the indoor pressure Pi. The pressure in each space is also shown in Figure 6.

Here, we will explain the water-stopping action between the vertical frame 12 and the vertical frame attachment 32. It is conceivable that rainwater from outside will seep in along the second surface contact portion 48 between the inner peripheral surface 12a and the vertical frame attachment 32, but since the second surface contact portion 48 is appropriately long in the projection direction, it is difficult for it to reach the first space 58. In addition, near the outside end, the convex portion 12aa fits into the concave portion 48a, creating a so-called labyrinth structure that makes it difficult for water to penetrate. In addition, since the first space 58 is at external air pressure Po, there is no pressure difference with the outside air, and so there is no action of sucking in water.

Even if water reaches the first space 58, the second space 70 has the same external pressure Po as the first space 58 and there is no pressure difference, so the second space 70 does not suck in water from the first space 58 and water rarely reaches the second space 70. The second space 70 is on the indoor side, but as described above, a large area is ensured, and the external pressure Po is maintained at the same pressure as the first space 58, so there is no pressure difference and water can be quickly drained to the bottom without exceeding the first surface contact part 46. In addition, the first space 58 and the second space 70 are quite securely separated by the first surface contact part 46, making it difficult for water to penetrate.

Furthermore, because a buffer auxiliary space 72 is formed between the second space 70 and the interior of the room, the second space 70 is even more likely to maintain the external air pressure Po. Even if water reaches the second space 70, the second space 70 is sufficiently large that the water will not reach the boundary with the auxiliary space 72 along the wall or enter the auxiliary space 72. Even if water enters the first space 58 or the second space 70, it will be discharged from the bottom and will not accumulate.

As described above, according to this embodiment, a watertight effect can be obtained without providing a seal between the vertical frame 12 and the vertical frame attachment 32. As no seal is required, the workability of assembling the fitting 10 is improved and costs can be reduced. There is a concern that a seal may not provide sufficient watertight performance depending on the installation state, but since the fitting 10 does not have a seal, stable watertight performance is obtained and quality is improved. Seals can deteriorate over time, but since the fitting 10 does not have a seal, it has a long life.

Figure 7 is an enlarged cross-sectional view showing the state in which the panel 26A is attached to the left vertical frame 12 by the vertical frame attachment 32A according to the modified example. In the vertical frame attachment 32A, parts similar to those of the vertical frame attachment 32 shown in Figure 6 are designated by the same reference numerals and detailed description is omitted.

The thickness W2 of the panel 26A is greater than the thickness W1 of the panel 26. The vertical frame 12 is the same as that shown in FIG. 6. In other words, the vertical frame 12 can be adapted to the panel 26 by applying the vertical frame attachment 32, and can be adapted to the panel 26A by applying the vertical frame attachment 32A.

The second partition wall 60A of the vertical frame attachment 32A corresponds to the second partition wall 60 described above, but has a slightly longer dimension in the projection direction than the second partition wall 60 and is located closer to the interior side than the second partition wall 60. Since the second partition wall 60A is slightly closer to the interior side, the projection direction dimension of the second space 70 is shorter by that amount. The outer peripheral end of the second partition wall 60A is connected to the indoor end of the first surface contact portion 46. In other words, the first surface contact portion 46 in this example is located at the boundary between the outdoor portion 32a and the indoor portion 32b, and is formed between the first partition wall 52 and the second partition wall 60A from each outer peripheral end along the projection direction and is in surface contact with the inner peripheral projection surface 12a. In this example, the entire first space 58 is contained within the area between the outer peripheral surface of the panel 26A (within the range of width W2) and the inner peripheral surface 12a of the vertical frame 12. The vertical frame attachment 32A provides the same water-stopping effect to the vertical frame 12 as the vertical frame attachment 32 described above.

Figure 8 is a perspective view of the joint between the vertical frame 12, bottom frame 18, and vertical frame attachment 32, viewed from diagonally above on the outside of the room. The face material 26 and batten 45 are omitted from Figure 8. Figure 9 is a perspective view of the joint between the bottom frame 18 and vertical frame attachment 32, viewed from diagonally above on the inside of the room. The face material 26 is omitted from Figure 9.

The lower frame 18 has an exterior sight wall 74, an interior sight wall 76, an outer periphery sight wall 78, an inner periphery sight wall 80, and a water drain 82. The outer periphery sight wall 78 is provided between the lower end of the exterior sight wall 74 and the approximate center height of the interior sight wall 76. The inner periphery sight wall 80 extends from the approximate upper end of the interior sight wall 76 toward the exterior. The inner periphery sight wall 80 has a smaller sight dimension than the outer periphery sight wall 78, and its exterior tip is spaced apart from the exterior sight wall 74. A fin 83 protrudes from the exterior tip of the inner periphery sight wall 80 toward the outer periphery. The tip of the fin 83 is spaced apart from the outer periphery sight wall 78. The lower end of the surface material 26 is supported by the fin 83 and the exterior sight wall 74 (see FIG. 2). The underside of the face material 26 is spaced apart from the outer peripheral visible face wall 78.

A partition wall 84 is provided between the approximate center of the inner peripheral side visible surface wall 80 in the visible direction and the outer peripheral side visible surface wall 78. The outdoor side visible surface wall 74, the outer peripheral side visible surface wall 78, and the partition wall 84 form a drain groove 86 with a U-shaped cross section. A drain hole 88 is formed in the outer peripheral side visible surface wall 78 near the outdoor side end. The drain hole 88 is composed of a long hole 88a and multiple round holes 88b arranged along the longitudinal direction of the lower frame 18. The drain hole 88 connects the drain groove 86 to the outside. The drain hole 88 serves not only as a water flow path but also as an air communication path. The drain hole 88 has a sufficient area to allow water and air to flow.

The drain 82 has a fin 82a that protrudes downward from the underside of the outer peripheral side visible wall 78, and an inclined wall 82b that slopes downward from the tip of the fin 82a toward the outside of the room. The fin 82a is located inside the room rather than the drain hole 88. There are no places where water or foreign objects can accumulate in the drainage path formed by the drain groove 86, the drain hole 88, and the drain 82.

The undersides of the interior wall 62, engagement piece 66, and bent piece 68 of the vertical frame attachment 32 abut against the inner peripheral visible wall 80 of the lower frame 18. The underside of the small wall 50 on the exterior side abuts against the end face of the exterior visible wall 74. The exterior visible surfaces of the second partition wall 60 and the fin 83 of the vertical frame attachment 32 form the same surface.

The inner peripheral visible wall 80 of the lower frame 18 has a communication notch (first communication portion) 90 at a location facing the second space 70, which connects the second space 70 to the outside. In other words, the communication notch 90 opens at a location corresponding to the lower end surface of the second space 70, so that water does not accumulate in the second space 70.

The communication notch 90 is formed by cutting, punching, or machining a part of the lower frame 18. The communication notch 90 is defined by an end 90a along the projection direction of the inner peripheral projection wall 80, an end 90b along the longitudinal direction of the lower frame 18, and an end 90c along the up-down direction of the fin 83. The end 90a is slightly on the outer periphery side of the abutment part between the inner peripheral projection wall 80 and the interior wall 62. The end 90b is slightly on the interior side of the lower end of the interior projection wall 64, and is on the same plane as the exterior projection surface of the partition wall 84.

These communication notches 90 allow the second space 70 and the auxiliary space 72 to communicate with the outdoors via the drain groove 86 and drain hole 88, and each internal space is at outside air pressure Po. In particular, the second space 70 has almost the entire lower part open to the communication notch 90, and there is no narrow passage that would resist air flow, so the outside air pressure Po is properly maintained. The communication part that connects the second space 70 and the auxiliary space 72 to the drain groove 86 is not limited to a notch, and may be a hole, etc.

The communication notch 90 is a cutout of the surface corresponding to the lower end surface of the second space 70 and the auxiliary space 72, but it is desirable that the communication portion that communicates these with the outside is not limited to the "lower end surface" but is provided at the "lower end" so that water does not substantially accumulate. For example, a notch may be provided in the exterior facing wall at the lower end of the second space 70. The same applies to the first space 58. The communication notch 90 extends to a point corresponding to the lower end surface of the auxiliary space 72, so that even if rainwater enters the second equal pressure space 70 and reaches the interior facing wall 64, the rainwater will not get on the surface of the lower frame 80 and will be drained. However, depending on the design conditions, the communication portion that communicates the first space 58 and the second space 70 with the outside may be not limited to the lower end, but may be in the middle or upper end. This is because the first space 58 and the second space 70 will be equal in pressure to the outside regardless of the position where the communication passage is formed, and water will be prevented from being sucked in.

The lower ends of the first space 58 and the panel outer peripheral space 44 (see FIG. 6) are also connected to the outside via the drain groove 86 and drain hole 88, and each internal space is at the outside air pressure Po. The lower ends of the first space 58 and the panel outer peripheral space 44 are located outside the outside end of the inner peripheral visible surface wall 80, and are connected to the outside without passing through the communication notch 90.

The water-stopping structure between the right-side vertical frame 20 of the first frame body 24a and the vertical frame attachment 34 (see FIG. 4) provided on the inner periphery of the vertical frame 20 is symmetrical to the structure of the vertical frame 12 and the vertical frame attachment 32, so a detailed description is omitted. Although not shown, a communication notch 90 similar to that on the left side is formed at the right end of the bottom frame 18, at the location facing the second space 70 in the right-side vertical frame attachment 34.

Next, the water-stopping structure between the upper frame 22 and the upper frame attachment 36 will be described.
10 is a partially enlarged horizontal-vertical view of the upper frame 22, the upper frame attachment 36, and the surface material 26. The surface material 26 has a seal 26b on the indoor side supported by a partition wall 100 described later, and a seal 26b on the outdoor side supported by a ridge 45. The ridge 45 is the same as that shown in FIG. 6. A surface material outer peripheral space 44 is formed between the surface material 26 and the upper frame attachment 36. The surface material outer peripheral space 44 is the same space that communicates with the space between the surface material 26 and the vertical frame attachment 34 (see FIG. 6). In other words, the surface material outer peripheral space 44 is formed so as to communicate around the four peripheries of the surface material 26. A wall 22b protruding toward the inner peripheral side is provided from the inner peripheral side visible surface 22a of the upper frame 22. The wall 22b has the same shape as the wall 12b in the vertical frame 12, and a pocket 22c that opens to the outdoor side is formed near the tip. A downwardly opening pocket 22d is formed at the exterior end of the inner peripheral visible surface 22a.

The surface contact portion 92, small wall 94, small wall 96, inclined wall 98, partition wall 100, inner peripheral side visible surface wall 102, indoor side visible surface wall 104, engagement piece 106 and bent piece 108 of the upper frame attachment 36 correspond to the second surface contact portion 48, small wall 50, small piece 54, inclined wall 56, second partition wall 60, indoor wall 62, indoor side visible surface wall 64, engagement piece 66 and bent piece 68 of the vertical frame attachment 32. A protrusion 114 protrudes upward from the outdoor end of the surface contact portion 92. The tip of the protrusion 114 is slightly bent outward and engages with the pocket 22d.

The first partition wall 52 and the first surface contact portion 46 that separate the first space 58 and the second space 70 in FIG. 6 are not provided on the upper frame attachment 36. Therefore, between the upper frame 22 and the upper frame attachment 36, a third space 110 is formed by the inner peripheral surface 22a, the small wall 96, the inclined wall 98, the partition wall 100, the inner peripheral surface wall 102, and the interior facing surface wall 104. The partition wall 100 corresponds to the exterior facing surface wall of the third space 110, and abuts against and supports the interior facing surface of the panel 6.

As described below, the third space 110 is connected to the outside through the panel outer peripheral space 44. Therefore, the pressure in the third space 110 is different from the indoor pressure Pi and is the same as the outdoor air pressure Po. In addition, an auxiliary space 112 is formed between the upper frame 22 and the upper frame attachment 36 by the inner peripheral side visible surface 22a, the inner peripheral side visible surface wall 102, the indoor side visible surface wall 104, and the wall 22b. The auxiliary space 112 corresponds to the above-mentioned auxiliary space 72, and the pressure can be intermediate between the indoor pressure Pi and the outdoor air pressure Po. Although not shown, the upper frame 22 can accommodate a panel 26A (see FIG. 7) that is thicker than the panel 26 by replacing the upper frame attachment 36 with another one.

Here, the water-stopping action between the upper frame 22 and the upper frame attachment 36 will be explained. It is conceivable that rainwater from outside will seep in along the surface contact portion 92 between the inner peripheral side visible surface 22a and the upper frame attachment 36, but since the surface contact portion 92 is appropriately long in the visible direction, it is difficult for it to reach the third space 110. In addition, near the exterior end, a protrusion 114 fits into the downward opening pocket 22d, forming a so-called labyrinth structure that makes it difficult for water to penetrate. In addition, since the third space 110 is at the outside air pressure Po, there is no pressure difference with the outside air, and there is no action to suck in water. The protrusion 22e, which is the exterior end of the pocket 22d and also the inner peripheral end of the exterior visible surface of the upper frame 22, protrudes slightly to the outside, and guides water flowing down from above to the outside to prevent it from penetrating inside the pocket 22d.

The third space 110 has a large surface area, and because an auxiliary space 112 is formed between the third space 110 and the room as a buffer zone, the external air pressure Po is maintained, making it difficult for water to penetrate. Even if water does reach the third space 110, it is drained through the communication notch 116 described below, so it does not actually reach the auxiliary space 112 or the room beyond the upwardly protruding interior facing wall 104.

Figure 11 is a perspective view of the joint between the vertical frame 12, upper frame 22, vertical frame attachment 32, and upper frame attachment 36, viewed from diagonally below on the outside of the room. The panel 26 and batten 45 are omitted from Figure 11. Figure 12 is a perspective view of the joint between the upper frame 22, upper frame attachment 36, and vertical frame attachment 32, viewed from diagonally above on the inside of the room. The vertical frame 12 is omitted from Figure 12.

The outdoor portion 32a of the vertical frame attachment 32 extends to a position slightly higher than the indoor portion 32b. The end faces of the small wall 50 and small pieces 54 of the outdoor portion 32a abut against the undersides of the small walls 94 and 96 of the upper frame attachment 36. The second partition wall 60, the indoor wall 62, and the indoor visible surface wall 64 of the indoor portion 32b abut against the underside of the inner peripheral visible surface wall 102 of the upper frame attachment 36.

The left end of the partition wall 100 in the upper frame attachment 36 is provided with a communication notch (second communication portion) 116 that communicates with the panel outer peripheral space 44. The communication notch 116 is formed by cutting, punching, or machining a part of the partition wall 100. The communication notch 116 is defined by an end portion 116a that runs along the vertical direction of the partition wall 100, an end portion 116b that runs along the horizontal direction, and an end portion 116c that is flush with the outer peripheral surface of the inner peripheral side visible surface wall 102. The communication notch 116 is located in a position that does not face the sealing portion 26b of the panel 26 (see Figures 6 and 10).

The end 116b is located at approximately the mid-height of the partition wall 100. The left half of the communication notch 116 is covered by the small piece 54 and the inclined wall 56 of the vertical frame attachment 32, but the end 116a is located moderately to the right of the small piece 54 and the inclined wall 56, so that a sufficient area is secured for the circulation of water and air. The end 116c, which is the lowest part of the communication notch 116, is on the same plane as the inner peripheral side visible wall 102. In other words, the lower end of the third space 110 is open, and water does not accumulate in the third space 110.

These communication notches 116 allow the third space 110 to communicate with the outdoors via the panel outer peripheral space 44, the drain groove 86, and the drain hole 88 (see FIG. 9), and the internal space is at outside air pressure Po. The communication notches 116 do not communicate with the first space 58 and the second space 70, and water in the third space 110 does not flow into the first space 58 and the second space 70. The communication notches 116 may be provided in at least one of the left and right ends of the partition wall 100. The communication portion that connects the third space 110 to the panel outer peripheral space 44 is not limited to a notch, and may be a hole, etc.

The fitting according to the present invention comprises at least one of the left and right vertical frames constituting a frame body, a surface material provided on the inner periphery of the frame body, and a vertical frame attachment provided between the vertical frame and the surface material, the inner peripheral surface of the vertical frame and the vertical frame attachment form a first space communicating in the vertical direction, and a second space communicating in the vertical direction on the indoor side of the first space, the vertical frame attachment has an outdoor partition part that abuts against the inner peripheral surface of the vertical frame to separate the first space from the outside, an intermediate partition part that abuts against the inner peripheral surface of the vertical frame to separate the first space from the second space, and an indoor partition part that abuts against the inner peripheral surface of the vertical frame to separate the second space from the indoor side, and the first space and the second space are connected to the outside.

In the fittings of the present invention, the first space and the second space formed by the inner peripheral surface of the vertical frame and the vertical frame attachment are separated from each other by an intermediate partition, and the lower end is connected to the outside. As a result, the first space and the second space are spaces of equal pressure to the outside air pressure. Since the first space is at the same pressure as the outside air pressure, it does not have the effect of absorbing water, and water from the outside is unlikely to penetrate. Since the second space is at the same pressure as the first space, it does not have the effect of absorbing water, and water from the first space is unlikely to penetrate. In this way, in the present invention, the first space and the second space provide a double water-stopping effect, and the water-stopping effect is maintained even without providing a seal. Since no seal is required, the workability of assembling the fittings is improved and costs can be reduced.

The fixture of the present invention is characterized in that the lower ends of the first space and the second space are connected to the outside. This allows water to be drained without accumulating even if it enters the first space or the second space.

The fixture of the present invention is characterized in that the intermediate partition section is in surface contact with the inner peripheral surface of the vertical frame along the projection direction. This allows the first space and the second space to be partitioned quite reliably.

The fixture of the present invention is characterized in that the exterior partition portion is in surface contact with the inner peripheral surface of the vertical frame along the projection direction. This allows the first space to be partitioned from the outside with a high degree of certainty.

The fixture of the present invention is characterized in that at least a portion of the first space is contained within the area between the outer peripheral surface of the panel and the inner peripheral surface of the vertical frame. This allows for efficient use of space.

The fitting according to the present invention is characterized in that the cross-sectional area of the first space is smaller than that of the second space. The second space is wider than the first space and is easily maintained at the outside air pressure.

The fitting according to the present invention is characterized in that the lower surface of the vertical frame attachment abuts against the inner peripheral surface of the lower frame that constitutes the frame body, and a first communication section that connects the second space to the outside is provided at the location of the inner peripheral surface of the lower frame that faces the second space. This causes the second space to be at outside air pressure, and further prevents water from accumulating in the second space.

The fixture of the present invention is characterized in that the exterior facing wall of the second space supports the interior facing surface of the panel. This allows the second space to also serve as a support for the panel.

The fitting according to the present invention is characterized in that the exterior wall that forms the first space is inclined toward the outer periphery as it moves from the interior side to the exterior side. This allows the first space to be kept appropriately wide.

The fixture of the present invention has an upper frame that constitutes the frame body, an upper frame attachment that is provided between the upper frame and the panel, and a third space that is formed by the inner peripheral surface of the upper frame and the upper frame attachment, and is partitioned between the indoor and outdoor spaces and communicates in the left-right direction. A panel outer peripheral space that communicates with the outdoors is formed between the outer peripheral surface of the panel and the vertical frame attachment and the upper frame attachment, and the exterior visible wall of the third space supports the indoor visible surface of the panel, and a second communication part that communicates with the panel outer peripheral space is formed at at least one of the left end and the right end. This provides a watertight effect between the upper frame and the upper frame attachment.

The fixture of the present invention is characterized in that the frame is part of a continuous window frame, and at least one of the left and right vertical frames is a vertical bone that constitutes the continuous window frame.

The fixture of the present invention is characterized in that the frame body is a part of a stepped window frame body, and the upper frame that constitutes the frame body is a transom that constitutes the stepped window frame body.

The present invention is not limited to the above-described embodiment, and can of course be freely modified without departing from the spirit of the present invention.

10 fitting, 12, 14 vertical frame, 12a inner peripheral surface, 16 upper frame, 18 lower frame, 20 vertical frame (vertical frame), 22 interlocking (upper frame), 24a first frame body, 26, 26A, 30 surface material, 28 shoji screen, 32, 32A, 34, 38, 40 vertical frame attachment, 32a exterior part, 36, 42 upper frame attachment, 44 surface material outer peripheral space, 45 batten, 46 first surface contact portion, 48 second surface contact portion, 52 first partition wall, 56 inclined wall, 58 first space, 60, 60A second partition wall, 70 second space, 72, 112 auxiliary space, 86 drainage groove, 88 drainage hole, 90 communication notch (first communication portion), 100 partition wall, 110 Third space, 116 Communication notch (second communication part)

Claims (12)

At least one of the left and right vertical frames constituting the frame body;
A surface material provided on an inner periphery of the frame body;
A vertical frame attachment provided between the vertical frame and the surface material;
having
The inner peripheral surface of the vertical frame and the vertical frame attachment form a first space communicating in the vertical direction, and a second space communicating in the vertical direction on the indoor side of the first space,
The vertical frame attachment is
An outdoor partition portion that abuts against the inner peripheral side visible surface of the vertical frame and separates the first space from the outside;
An intermediate partition portion that abuts against the inner peripheral side visible surface of the vertical frame and divides the first space and the second space;
An indoor partition portion that abuts against the inner peripheral side visible surface of the vertical frame and separates the second space from the room;
having
The first space and the second space are in communication with the outside. The fixture according to claim 1 , wherein the first space and the second space have lower ends communicating with the outside. The fixture according to claim 1 or 2, characterized in that the intermediate partition portion is in surface contact with the inner peripheral visible surface of the vertical frame along the projection direction. The fixture described in any one of claims 1 to 3, characterized in that the exterior partition portion is in surface contact with the inner periphery visible surface of the vertical frame along the projection direction. A fixture as described in any one of claims 1 to 4, characterized in that at least a portion of the first space is included within the area sandwiched between the outer peripheral concealed surface of the panel and the inner peripheral concealed surface of the vertical frame. The fitting according to any one of claims 1 to 5, characterized in that the first space has a smaller cross-sectional area than the second space. The lower surface of the vertical frame attachment abuts against the inner peripheral surface of the lower frame constituting the frame body,
A fixture as described in any one of claims 1 to 6, characterized in that a first communication portion is provided at a portion of the inner circumferential surface of the lower frame that faces the second space, connecting the second space with the outside. The fixture according to any one of claims 1 to 7, characterized in that the exterior facing wall of the second space supports the interior facing surface of the panel. The fitting according to any one of claims 1 to 8, characterized in that the exterior wall forming the first space is inclined so as to approach the outer periphery from the interior side to the exterior side. An upper frame constituting the frame body;
An upper frame attachment provided between the upper frame and the surface material;
A third space formed by the inner peripheral surface of the upper frame and the upper frame attachment, which is partitioned between the indoor and outdoor spaces and communicates in the left-right direction;
having
A surface material outer peripheral space communicating with the outside is formed between the outer peripheral surface of the surface material and the vertical frame attachment and the upper frame attachment,
The fitting described in any one of claims 1 to 9, characterized in that the exterior facing wall of the third space supports the interior facing surface of the panel, and a second communication portion communicating with the panel outer peripheral space is formed at at least one of the left end and right end. The fixture according to any one of claims 1 to 10, characterized in that the frame body is part of a continuous window frame body, and at least one of the left and right vertical frames is a vertical bone that constitutes the continuous window frame body. The fixture according to any one of claims 1 to 11, characterized in that the frame body is a part of a stepped window frame body, and an upper frame constituting the frame body is a mullion constituting the stepped window frame body.

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