JP7724681B2 - Sash structure - Google Patents

Description

This disclosure relates to a sash structure.

A known curtain wall structure is one in which sashes are fitted between the upper and lower mullions and between the left and right mullions of a support structure made up of mullions and mullions. In curtain walls of this type, to prevent water from seeping into the sash from the outside, outside air is introduced into the sash to reduce the pressure difference between the inside of the sash and the outside air.

The underside of the sash is provided with drainage holes to drain rainwater that runs down the sash (see, for example, Patent Document 1). These drainage holes not only drain rainwater, but also allow outside air to enter the inside of the sash. When outside air is introduced into the inside of the sash through the drainage holes, it is then introduced into the sash, reducing the pressure difference between the inside of the sash and the outside air.

Japanese Patent Application Laid-Open No. 2006-219831

Because the upper side of the sash is far from the drainage holes formed in the underside of the sash, it may not be possible to introduce enough outside air, making it difficult to reduce the pressure difference with the outside air.

The purpose of this disclosure is to provide a sash structure that can reduce the air pressure difference between the inside and outside air throughout the entire sash.

In order to achieve the above-mentioned objective, the sash structure of the present disclosure has a support body with a vertical frame and a transom, and a sash supported by the support body, and an upper outside air intake hole for introducing outside air into the interior is provided in the part of the vertical frame adjacent to the upper side of the sash and in the upper transom of the sash .

FIG. FIG. 2 is a cross-sectional view taken along line AA in FIG. 1. 2 is a cross-sectional view taken along line BB in FIG. 1. FIG. 4 is a perspective view showing a first upper outside air introduction hole. 2 is a cross-sectional view taken along line CC in FIG. 1. FIG. 10 is a perspective view showing a state in which the first upper outside air introduction hole is covered by a sash. FIG. 4 is a partial enlarged view of FIG. 3 .

The sash structure 1 shown in Figures 1 and 2 is a sash 2 structure installed in, for example, a curtain wall. The sash structure 1 includes a support 5 composed of multiple mullions 3 and multiple crossbeams 4, and a sash 2 supported by the support 5. Figures 1 and 2 show two adjacent mullions 3, four crossbeams 4 spaced vertically between the two mullions 3, and the sash 2 supported by the support 5 composed of these mullions 3 and crossbeams 4. Hereinafter, the horizontal direction along the surface of the curtain wall will be referred to as the left-right direction (the direction of arrow X in the figure), and the horizontal direction perpendicular to the left-right direction will be referred to as the indoor-outdoor direction (the direction of arrow Y in the figure). In the figures, the vertical direction (height direction) is indicated by arrow Z. In the left-right direction, the left side when viewed from the outdoors toward the indoor side will be referred to as the left side, and the right side when viewed from the outdoors toward the indoor side will be referred to as the right side. In the drawings, the outdoor and outdoor side are indicated by the reference number "13", and the indoor and indoor side are indicated by the reference number "14".

In the following, the left-hand mullion 3 of the two mullions 3 will be referred to as the first mullion 31, and the right-hand mullion 3 will be referred to as the second mullion 32. Of the four mullions 4, the topmost one is joined to the upper ends of the first and second mullions 31 and 32. Of the four mullions 4, the bottommost one is joined to the lower ends of the first and second mullions 31 and 32. Of the four mullions 4, the second and third from the top are joined to the midpoints in the height direction of the first and second mullions 31 and 32. In the following, the second-highest one of the four mullions 4 will be referred to as the first mullion 41, the third-highest one will be referred to as the second mullion 42, the topmost one will be referred to as the third mullion 43, and the bottommost one will be referred to as the fourth mullion 44.

The sash 2 is fitted between the first mullion 31 and the second mullion 32, between the first mullion 41 and the second mullion 42, between the first mullion 41 and the third mullion 43, and between the second mullion 42 and the fourth mullion 44. The sash 2 is arranged inside the first mullion 31, the second mullion 32, the first mullion 41, and the second mullion 42. This section describes the sash structure 1 formed by the first mullion 31, the second mullion 32, the first mullion 41, and the second mullion 42.

As shown in Figures 3 and 4, the building's skeleton 11 is adjacent to the left side of the first mullion 31. A sash 2 is arranged on the right side of the first mullion 31. As shown in Figure 4, the first mullion 31 has a first mullion member 311, a skeleton adjacent member 312, and a first groove cover 313. The first mullion member 311 and the skeleton adjacent member 312 are each elongated members. The first mullion member 311 and the skeleton adjacent member 312 are each arranged to extend in the vertical direction. The first mullion member 311 is arranged on the right side of the skeleton adjacent member 312. The skeleton adjacent member 312 and the first mullion member 311 are connected. The building's skeleton 11 is arranged on the left side of the skeleton adjacent member 312. A sash 2 is arranged on the right side of the first mullion member 311.

The first upright member 311 has a first groove 314 that opens to the right side. The edge of the glass of a fixed window can be attached and detached to the first groove 314. When a sash 2 is installed on the right side of the first upright member 311, the edge of the glass is not fitted into the first groove 314, and a first groove cover 313 is attached to the first upright member 311 to cover the first groove 314 from the right side. The first groove cover 313 is detachable from the first upright member 311. The first upright member 311 has a first groove forming portion 315 in which the first groove 314 is formed, a first outdoor portion 316 that is continuous with the outdoor side of the first groove forming portion 315, and a first indoor portion 317 that is continuous with the indoor side of the first groove forming portion 315.

The first groove cover 313 has a first groove cover main body 318 that covers the first groove 314, a pair of first claws 319, 319 attached to the first groove forming portion 315, and a fixing portion 320 fixed to the first indoor portion 317. The first groove cover main body 318 is formed in a flat plate shape and is arranged with the plate surface facing left and right. The first claws 319, 319 protrude to the left from the indoor-side edge and outdoor-side edge of the first groove cover main body 318. The fixing portion 320 protrudes outdoors from the outdoor-side end of the first groove cover main body 318. The first claws 319, 319 are inserted inside the first groove 314. The first claws 319, 319 are hooked onto the sides of the first groove 314. The fixing part 320 overlaps the right side of the first outdoor part 316 and is fixed with a fastener such as a screw. When the first groove cover 313 is attached to the first upright member 311, the right side of the first groove cover 313 is positioned flush with the right side of the first outdoor part 316.

The first groove cover 313 is positioned between the location where the first transverse 41 is joined to the first upright member 311 and the location where the second transverse 42 is joined. As shown in FIG. 5, the upper end 313a of the first groove cover 313 is positioned below and spaced apart from the lower end 41a of the first transverse 41. The portion of the first groove 314 immediately below the first transverse 41 is not covered by the first groove cover 313 and is open. The portion of the first groove 314 immediately below the first transverse 41 of the first upright member 311 and not covered by the first groove cover 313 is referred to as the first upper outside air intake hole 61.

As shown in Figure 3, a sash 2 is arranged on the left side of the second mullion 32. Another sash 12 is arranged on the right side of the second mullion 32. The second mullion 32 has a first mullion member 311, a first groove cover 313, a second mullion member 321, and a second groove cover 323. The first mullion member 311 and first groove cover 313 of the second mullion 32 have the same configuration as the first mullion member 311 and first groove cover 313 of the first mullion 31. The second mullion member 321 is a long, elongated member. The second mullion member 321 is arranged so that it extends in the vertical direction. The second mullion member 321 is arranged on the left side of the first mullion member 311. The first mullion member 311 and the second mullion member 321 are connected. A sash 2 is arranged on the left side of the second mullion member 321. Another sash 12 is placed to the right of the first support member 311 of the second support 32.

A second groove 324 that opens to the left side is formed in the second upright member 321. The edge of the glass of a fixed window can be attached and detached to the second groove 324, just like the first groove 314. When a sash 2 is installed on the left side of the second upright member 321, the edge of the glass is not fitted into the second groove 324, and a second groove cover 323 is attached to the second upright member 321 to cover the second groove 324 from the left side. The second groove cover 323 is detachable from the second upright member 321. The second upright member 321 has a second groove forming portion 325 in which the second groove 324 is formed, a second outdoor portion 326 that is continuous with the outdoor side of the second groove forming portion 325, and a second indoor portion 327 that is continuous with the indoor side of the second groove forming portion 325.

The groove width dimension, which is the dimension in the indoor/outdoor direction, of the second groove portion 324 is the same as the groove width dimension of the first groove portion 314. The first groove portion 314 and the second groove portion 324 of the second mullion 32 are located in the same position in the indoor/outdoor direction. The first groove portion 314 and the second groove portion 324 of the second mullion 32 open in opposite directions in the left-right direction. The first groove portion 314 of the first mullion 31 and the second groove portion 324 of the second mullion 32 are located in the same position in the indoor/outdoor direction. The first groove portion 314 of the first mullion 31 and the second groove portion 324 of the second mullion 32 face each other with a gap between them in the left-right direction.

The second groove cover 323 has a similar configuration to the first groove cover 313 and is attached to the second groove 324 in a symmetrical orientation in the left-right direction. The second groove cover 323 is also positioned between the location where the first transverse transverse strip 41 and the second transverse transverse strip 42 are joined on the second upright member 321. The upper end of the second groove cover 323, like the upper end 313a of the first groove cover 313, is positioned below and spaced apart from the lower end 41a of the first transverse transverse strip 41. The portion of the second groove 324 immediately below the first transverse transverse strip 41 is not covered by the second groove cover 323 and is open. The portion of the second groove 324 on the second upright member 321 immediately below the first transverse transverse strip 41 and not covered by the second groove cover 323 is referred to as the second upper outside air intake hole 62.

As shown in FIG. 6 , the first and second transoms 41 and 42 have outdoor gutters 45 that open downward on the outdoor side across the entire width in the left-right direction. An outdoor gutter panel 46 with a panel surface facing the indoor/outdoor direction is provided at the outdoor ends of the first and second transoms 41 and 42. The outdoor gutter 45 is formed on the indoor side of the outdoor gutter panel 46. The indoor surface of the outdoor gutter panel 46 is the outdoor side of the outdoor gutter 45. When the first and second transoms 41 and 42 are connected to the first and second mullion frames 31 and 32, the interiors of the outdoor gutters 45 of the first and second transom frames 41 and 42, respectively, are connected to the interiors of the first groove 314 of the first mullion frame 31 and the second groove 324 of the second mullion frame 32.

As shown in Figure 2, the sash 2 has a frame body 21 and glass 22 fitted into the frame body 21. The frame body 21 has a pair of vertical frames 23, 23, an upper frame 24, a lower frame 25, and an intermediate frame 26. Each of the pair of vertical frames 23, 23 is an elongated member. The pair of vertical frames 23, 23 is arranged so as to extend in the up-down direction. The pair of vertical frames 23, 23 is arranged with a gap between them in the left-right direction. The upper frame 24, lower frame 25, and intermediate frame 26 are each elongated members. The upper frame 24, lower frame 25, and intermediate frame 26 are each arranged so as to extend in the left-right direction. The upper frame 24, lower frame 25, and intermediate frame 26 are each arranged between the pair of vertical frames 23, 23. The left-right ends of the upper frame 24 are joined to the upper ends of the pair of vertical frames 23, 23. The left and right ends of the bottom frame 25 are joined to the lower ends of the pair of vertical frames 23, 23. The left and right ends of the middle frame 26 are joined to the middle parts of the pair of vertical frames 23, 23 in the height direction. Between the pair of vertical frames 23, 23, glass 22 is fitted between the top frame 24 and the middle frame 26, and between the middle frame 26 and the bottom frame 25. The sash 2 is a fixed window in which glass 22 is fitted above and below the middle frame 26.

Attachments 7 for attaching the sash 2 to the support body 5 are attached to the outer periphery of the frame body 21 of the sash 2. The attachments 7 are fixed to the frame body 21 of the sash 2 with screws or the like. With the attachments 7 attached, the sash 2 is fitted into the interior of the support body 5 from the indoor side and fixed to the support body 5 with fasteners such as screws. As described above, the sash 2 does not fit into the first groove 314 of the first mullion 31 or the second groove 324 of the second mullion 32.

As shown in FIG. 7, when the sash 2 is fixed to the support 5, the first upper outside air introduction hole 61 and the second upper outside air introduction hole 62 (see FIG. 4) are concealed by the sash 2. Even though the first upper outside air introduction hole 61 and the second upper outside air introduction hole 62 are concealed by the sash 2, they are not completely blocked, and outside air can be introduced from the outdoor side groove portion 45 of the first mullion 41 into the inside of the first mullion 31 and the second mullion 32 (see FIG. 4), i.e., the first groove portion 314 of the first mullion 31 and the second groove portion 324 of the second mullion 32 (see FIG. 4). The outside air introduced into the inside of the first mullion 31 and the second mullion 32 is introduced into the inside of the sash 2.

As shown in Figure 8, the bottom frame 25 of the sash 2 and the attachment 7 attached to the bottom frame 25 are formed with sash drainage holes 27, 71 for draining water such as rainwater that has run down the glass 22. Water that passes through the sash drainage holes 27, 71 is drained above the second transom 42 below. The second transom 42 is formed with second transom drainage holes 421-423 for draining water drained from the sash 2 to the outdoors. The second transom drainage holes 421-423 not only drain rainwater and the like, but also allow outside air to be introduced into the interior of the second transom 42. Outside air introduced from the second transom drainage holes 421-423 into the second transom 42 is introduced into the interior of the sash 2. The outside air introduced into the second transom 42 is introduced directly into the interior of the sash 2 from the second transom 42, or from the second transom 42 through the first groove 314 of the first mullion 31 and the second groove 324 of the second mullion 32 into the interior of the sash 2. The locations and numbers of the sash drainage holes 27, 71 and second transom drainage holes 421-423 may be set as appropriate.

The sash structure 1 has a first upper outside air introduction hole 61 provided immediately below the first transom 41 in the first mullion 31, and a second upper outside air introduction hole 62 provided immediately below the first transom 41 in the second mullion 32. The first upper outside air introduction hole 61 is provided in a portion of the first mullion 31 adjacent to the upper side 2a of the sash 2 (see Figures 1, 2, and 6). The second upper outside air introduction hole 62 is provided in a portion of the second mullion 32 adjacent to the upper side 2a of the sash 2. The upper side 2a of the sash 2 is the empty space between the upper frame 24 of the sash 2 and the attachment 7, as shown in Figure 6, for example. As a result, even if the outside air introduced through the second intermittent drain hole 421 is not sufficiently introduced into the upper side 2a of the sash 2, the outside air introduced through the first upper outside air inlet hole 61 to the first mullion 31 and the outside air introduced through the second upper outside air inlet hole 62 to the second mullion 32 can be introduced into the upper side 2a of the sash 2. Because outside air is introduced into both the lower side 2b and upper side 2a of the sash 2 and throughout the sash 2, the pressure difference between the inside and outside air throughout the sash 2 can be reduced, preventing water from entering the inside of the sash 2 from the outdoors.

The first upper outside air introduction hole 61 is located on the left side of the sash 2. The second upper outside air introduction hole 62 is located on the right side of the sash 2. This allows outside air to be introduced evenly across the entire upper side 2a of the sash 2 in the left-right direction.

When the sash 2 is fixed to the support 5, the first upper outside air introduction hole 61 and the second upper outside air introduction hole 62 are concealed by the sash 2. This prevents the first upper outside air introduction hole 61 and the second upper outside air introduction hole 62 from being exposed, improving the design of the sash structure 1. This prevents rainwater, dust, etc. from entering the interior of the first mullion 31 and the second mullion 32 through the first upper outside air introduction hole 61 and the second upper outside air introduction hole 62.

The first upper outside air introduction hole 61 and the second upper outside air introduction hole 62 are formed by positioning the upper ends of the first groove cover 313 and the second groove cover 323 below and spaced apart from the lower end 41a of the first transom 41. The first upper outside air introduction hole 61 and the second upper outside air introduction hole 62 can be easily formed without drilling holes or creating cutouts in the first mullion 31 and the second mullion 32.

The present disclosure is not limited to the above-described embodiments and may be modified as appropriate. For example, the above-described embodiments describe a sash structure 1 in which a sash 2 is disposed between a first mullion 41 and a second mullion 42 joined to the vertical midpoint of a first mullion 31 and a second mullion 32. The height at which the mullions located above and below the sash 2 are joined to the mullion, and the height at which the sash 2 is disposed, may be set as appropriate. The sash 2 may be a window other than a fixed window. The first mullion 31, located to the left of the sash 2, may be adjacent to another sash, rather than the building's framework 11. In such cases, a mullion with a shape similar to the second mullion 32 may be disposed to the left of the sash 2. The second mullion 32, located to the right of the sash 2, may be adjacent to the building's framework 11, rather than another sash 12. In such cases, a mullion with a shape symmetrical to the first mullion 31 may be disposed to the right of the sash 2.

Only one of the first upper outside air introduction hole 61 on the first support 31 and the second upper outside air introduction hole 62 on the second support 32 may be provided.

Instead of the first upper outside air inlet hole 61 of the first mullion 31 and the second upper outside air inlet hole 62 of the second mullion 32, an upper outside air inlet hole that introduces outside air into the first mullion 41 may be provided. In addition to the first upper outside air inlet hole 61 of the first mullion 31 and the second upper outside air inlet hole 62 of the second mullion 32, an upper outside air inlet hole that introduces outside air into the first mullion 41 may be provided. The upper outside air inlet hole introduces outside air into the first mullion 41. The outside air introduced into the first mullion 41 is introduced into the upper side 2a of the sash 2.

A lower outside air inlet for introducing outside air into the interior of the mullion 3 may be provided in at least one of the portion of the first mullion 31 adjacent to the lower part of the sash 2 and the portion of the second mullion 32 adjacent to the lower part of the sash 2. The lower outside air inlet may be formed by positioning the lower ends of the first groove cover 313 and the second groove cover 323 above and spaced apart from the upper end of the second transom 42, or by drilling holes or providing cutouts in the first mullion 31 and the second mullion 32.

The first upper outside air introduction hole 61 and the second upper outside air introduction hole 62 may be formed by drilling holes or creating cutouts in the first and second uprights 31 and 32.

The first upper outside air introduction hole 61 and the second upper outside air introduction hole 62 may be exposed and not hidden by the sash 2 fitted into the support 5.

1. Sash structure, 2. Sash, 2a. Upper side, 3. Mullion, 4. Transom, 5. Support, 61. First upper outside air intake (upper outside air intake), 62. Second upper outside air intake (upper outside air intake)

Claims (4)

A support with mullions and crossbeams;
a sash supported by the support;
A sash structure in which upper outside air inlet holes for introducing outside air into the interior are provided in the part of the upright adjacent to the upper side of the sash and in the upper interlock of the sash . The sash structure of claim 1, wherein the upper outside air intake holes are provided in each of the mullions located on both sides of the sash. A sash structure as described in claim 1 or 2, wherein a lower air inlet for introducing outside air into the interior is provided in the portion of the mullion adjacent to the lower part of the sash. A sash structure as described in any one of claims 1 to 3, wherein the upper outside air intake hole is located in a position that is concealed by the sash.