JP6912344B2 - Joinery - Google Patents

Description

The present invention relates to a fitting in which at least one of an external sash and an internal sash is slidably arranged in the fitting frame.

In the sliding window provided with the frame body arranged in the opening of the building and the outer and inner sashes arranged in the frame, a hollow portion is formed in the lower frame and flows into the space between the outer rail and the inner rail. A structure is known in which rainwater is introduced into a hollow portion and further discharged to the outside through a drain hole opened on the outdoor surface of the hollow portion (see Patent Document 1).
Here, the lower frame is made of an extruded aluminum profile, and the hollow portion is also continuously formed over the entire length of the lower frame in the longitudinal direction.

Japanese Unexamined Patent Publication No. 2013-19116

Since the lower frame is made of aluminum, when a fire breaks out on the outdoor side of the fitting, the temperature rises due to the heat of the fire, and when the rigid yield point of the lower frame becomes low, the lower frame bears the vertical load of the shoji. There is a risk that it will not be able to support it and will undergo thermoplastic deformation. In particular, as shown in Patent Document 1, the outer rail that supports the outer sash is formed above the hollow portion, so that it is easily affected by thermoplastic deformation, and the outer sash is liable to hang down. Therefore, it is conceivable to insert a reinforcing material into the hollow portion to support the load of the external shoji.
However, when the reinforcing material is arranged according to the closed position of the outer sash, the area of the lower frame where the reinforcing material is not arranged is damaged by the fire, heat and flame enter the hollow part of the lower frame, and the lower frame. May damage the. Since the heat and flame that have entered the hollow portion are transmitted through the hollow portion, the lower frame of the portion where the reinforcing material is arranged may be damaged from the hollow portion side by heat or the like. In this case, the fixing force of the reinforcing material fixed to the lower frame with screws or the like decreases, the reinforcing material cannot support the load of the external shoji, the external obstacle hangs down, and the gap between the frame and the external obstacle occurs. May cause a decrease in fire protection performance.
An object of the present invention is to provide a fitting capable of stably exhibiting fire protection performance by suppressing damage to the lower frame hollow portion located below the outer sash from the inside due to heat or flame in the event of a fire or the like. ..

The fitting of the present invention includes a frame having a lower frame provided with a continuous hollow portion along the longitudinal direction, and an external sash and an internal sash arranged in the frame, and the external sash and the internal sash. At least one of them is slidable along the lower frame, and the hollow portion is a first space located below the outer sash in a closed position and the lower frame with respect to the first space. A reinforcing material having a second space continuous in the longitudinal direction, and having a finding piece portion arranged in at least the first space and capable of supporting the load of the shoji in the hollow portion, and foaming by heating. Then, a space on the indoor side of the found piece portion of the first space and a first heated foam material arranged at a position capable of shielding the second space are provided , and the first heated foam material is provided. Is characterized in that the space on the indoor side of the found piece in the hollow portion is closed by the foaming, and the space is blocked from the second space.

In the present invention, when the first heated foaming material is heated by the heat of a fire and foamed, the space on the indoor side of the found piece of the reinforcing material and the second space are closed with the heated foaming material in the first space. Can be shielded. In the lower frame, the outdoor part of the shoji in the closed position is exposed to the outside, so if a fire breaks out on the outdoor side of the fitting, it may be damaged by flame or heat. For this reason, flames and heat may enter the second space, but the foaming of the first heated foaming material causes heat from the second space to the space inside the room rather than the found piece of the first space. And flames can be prevented from entering. Therefore, it is possible to prevent the portion of the hollow portion where the reinforcing material is arranged from being damaged from the inside, and it is also possible to prevent the holding force of the reinforcing material from being lowered by the lower frame, so that the external shoji can be prevented from hanging down. Therefore, in the fitting, it is possible to prevent a gap from being generated between the frame and the external shoji, and the fitting can stably exhibit the fire protection performance.

In the fitting of the present invention, the hollow portion is foamed by heating and is arranged at a position where the end opening on the vertical frame side in the space on the indoor side of the found piece portion in the first space can be closed. It is preferable that the second heated foaming material is provided.
In the present invention, a second heated foaming material is provided in addition to the first heated foaming material, and in order to close each end opening of the space on the indoor side of the found piece in the hollow portion, the flame enters from the second space. It is also possible to prevent flames from entering the first space through the gap between the lower frame and the vertical frame. Therefore, damage to the lower frame due to heat in the event of a fire or the like can be further suppressed, and a decrease in the holding power of the reinforcing material can be prevented, so that the fire protection performance of the fitting can be stably exhibited.

In the fitting of the present invention, it is preferable that the first heated foaming material is attached to the reinforcing material.
The first heated foaming material may be directly attached to the hollow portion of the lower frame, but it is difficult to arrange it at an accurate position because it must be arranged at an intermediate position in the longitudinal direction of the hollow portion of the lower frame. On the other hand, if the first heated foam material is attached to the reinforcing material, the first heated foam material can be easily placed in an appropriate position by setting the length dimension of the reinforcing material and the mounting position in the hollow portion of the lower frame. Can be placed in.
When the second heated foaming material is provided, it may be directly attached to the hollow portion of the lower frame, but it is preferably attached to the reinforcing material.

In the fitting of the present invention, in the reinforcing material, the first end portion on the mating stile side of the external shoji is extended to the second space, and the first heated foaming material is the first end portion of the reinforcing material. It is preferable that it is attached to.
In the present invention, the first heated foaming material can be easily arranged on the second space side of the shoji sash. When placed below the mating stile, the heat insulating effect of the heated foaming material that closes the gap between the mating stile and the lower frame may delay the timing at which the first heated foaming material in the hollow portion rises to the foaming temperature. be. On the other hand, if the first heated foaming material is placed on the second space side of the combination stile, the heat at the time of fire is easily transferred to the first heated foaming material, and foaming can be performed at a relatively early timing. It is possible to reliably prevent the ingress of flames from the second space into the first space.

In the fitting of the present invention, the lower frame includes an upper surface portion, a lower surface portion, an outdoor side surface portion, and an indoor side surface portion for partitioning the hollow portion, and the reinforcing material includes the finding piece portion and the finding piece portion. A mounting piece extending from the lower part of one part to the indoor side and a prospective piece extending from the upper part of the found piece to the indoor side are provided, and the prospective piece is fixed to the upper surface by a fastening member. The first heated foam material is preferably attached to the attachment piece portion.
In the present invention, since the prospective piece of the reinforcing material is fixed to the upper surface of the lower frame with a fastening member such as a fixing screw or a rivet, the load applied from the shoji to the upper surface of the lower frame is surely applied by the reinforcing material. Can be supported. Further, since the prospective piece of the reinforcing material is arranged on the indoor side of the found piece where the flame is prevented from entering by the first heated foam material and the second heated foam material, the prospective piece and the upper surface portion. It is also possible to prevent the joint portion with and from being damaged by heat. For this reason, it is possible to prevent the fixing force of the reinforcing material from being reduced by the fastening member, and the reinforcing material can reliably support the load of the external shoji, so that the external obstacle can be prevented from hanging down, and the fire protection performance of the fitting is stably exhibited. can.

In the fitting of the present invention, a drainage hole is formed in the upper surface portion of the lower frame, a lower frame drainage hole is formed in the outdoor side surface portion of the lower frame, and the prospective piece portion of the reinforcing material is formed. Is formed with a drainage portion corresponding to the drainage hole, and a heated foaming material capable of closing the drainage portion by foaming by heating is attached to the attachment piece portion of the reinforcing material. preferable.
In the present invention, since the drainage portion formed in the reinforcing material can be blocked by foaming the heated foaming material and the drainage path can be blocked, even when the first space is used as the drainage path, the flame becomes the first space through the drainage path. It can also be prevented from entering. The heated foaming material that closes the drainage portion may be also used as the second heated foaming material, or may be composed of a heated foaming material that is separate from the second heated foaming material.

According to the present invention, it is possible to prevent the hollow portion of the lower frame located below the outer sash from being damaged from the inside due to heat or flame in the event of a fire, and to provide a fitting capable of stably exhibiting fire protection performance.

The vertical sectional view which shows the sliding window which concerns on embodiment of this invention. The cross-sectional view which shows the sliding window which concerns on the said embodiment. The figure which enlarges and shows the main part of the lower frame of the sliding window which concerns on the said embodiment. The vertical sectional view which enlarges and shows the main part of the sliding window which concerns on the said embodiment. The vertical sectional view which enlarges and shows the main part of the sliding window which concerns on the said embodiment.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 5.
In FIGS. 1 to 3, the sliding window 1 which is a fitting according to the present embodiment has a window frame 2 which is a frame body of the fitting, and an outer sash 3 and an inner sash 4 which are provided so as to be slidable in the window frame 2. And have.
The window frame 2 is arranged at the opening of the building and fixed to the skeleton of the building. The window frame 2 includes an upper frame 21, a lower frame 22, and left and right vertical frames 24 and 25. The upper frame 21, the lower frame 22, and the left and right vertical frames 24 and 25 are made of extruded aluminum.
The outer sash 3 is configured to include a sash frame framed by an upper stile 31, a lower stile 32, a door tip stile 33, and a combination stile 34, and a double glazing 35 incorporated in the sash frame.
The shoji 4 is configured to include a shoji frame framed by an upper stile 41, a lower stile 42, a door tip stile 43, and a combination stile 44, and a double glazing 45 incorporated in the shoji frame.
In the present embodiment, the vertical frame 24 is provided so as to face the door tip stile 43 of the inner sash 4, and the vertical frame 25 is provided so as to face the door stile 33 of the outer sash 3.
Each of the stiles 3 and 4 is composed of an aluminum resin composite stile that is a combination of an outdoor member made of an extruded aluminum profile and an extruded synthetic resin stile, except for the combination stile 34. There is.
In the double glazings 35 and 45, the outdoor side is made of fireproof glass such as wire-reinforced glass, and the indoor side is made of LOW-E glass or the like.

In the following description, as shown in FIGS. 1 and 2, the vertical direction of the sliding window 1 is defined as the Y axis, and the sliding moving direction of the external obstacle 3 and the internal obstacle 4 is defined as the X axis, which is orthogonal to the X axis and the Y axis. The direction to do so is the Z axis.
The prospective directions of the window frame 2 (upper frame 21, lower frame 22, vertical frames 24, 25), the outer sash 3 and the inner sash 4 are the Z-axis direction, that is, the indoor / outdoor direction (depth direction) of the sliding window 1. Further, the finding directions of the upper frame 21, the lower frame 22, the upper stiles 31, 41, and the lower stiles 32, 42 are in the Y-axis direction, that is, in the vertical direction, and the vertical frames 24, 25, the door end stiles 33, 43, and the combination The finding directions of the stiles 34 and 44 are the X-axis direction, that is, the moving direction (left-right direction) of the outer obstacle 3 and the inner obstacle 4.

As shown in FIGS. 1 and 4, the lower frame 22 includes an upper surface portion 221 and a lower surface portion 222, an outdoor surface portion 223, an indoor side surface portion 224, and a mounting portion 225. The hollow portion (hollow portion) 226 is partitioned by the upper surface portion 221 and the lower surface portion 222, the outdoor surface portion 223, and the indoor side surface portion 224. An outer rail 227 on the outdoor side and an inner rail 228 on the indoor side are erected on the upper surface of the upper surface portion 221. The outer rail 227 supports the outer sash 3 so as to be movable in the left-right direction, and the inner rail 228 supports the inner sash 4 so as to be movable in the left-right direction.

The upper surface portion 221 is formed so as to extend in the prospective direction (indoor / outdoor direction) of the lower frame 22. A plurality of square drain holes 229 (see FIGS. 1 and 3) are formed side by side in the left-right direction in the portion of the upper surface portion 221 located between the outer rail 227 and the inner rail 228. In the present embodiment, five drain holes 229 are formed in the upper surface portion 221 at a position separated from the end portion on the vertical frame 25 side by about the found dimension of the door end stile 33.
As shown in FIGS. 1 and 4, a screw hole 221A is provided on the lower surface of the upper surface portion 221 of the outer sash 3 as a protruding portion that comes into contact with the reinforcing material 5 described later.
A locking protrusion is formed on the upper surface portion 221 and the outer rail 227 and the inner rail 228, and the locking protrusion locks the resin cover material 26. Further, a hanging portion that abuts on the skeleton at the tip is formed in the portion of the upper surface portion 221 located on the indoor side of the inner rail 228.
The lower surface portion 222 is formed so as to extend in the prospective direction of the lower frame 22. The lower surface portion 222 is arranged with respect to the upper surface portion 221 at intervals in the vertical direction. The lower surface portion 222 is supported from below by the skeleton of the building.

The outdoor side surface portion 223 is formed so as to extend in the finding direction (vertical direction) of the lower frame 22, and is integrally continuous with the outdoor end portions of the upper surface portion 221 and the lower surface portion 222. Therefore, the outdoor side surface portion 223 is arranged at a position outside the outdoor side of the outer rail 227. As shown in FIG. 1, a lower frame drainage hole 230 having a rectangular elongated hole shape is formed in the lower part of the outdoor surface portion 223. In the present embodiment, the outdoor side surface portion 223 is formed in the vicinity of the end portion on the vertical frame 25 side. Specifically, it is formed at a position between the edge on the vertical frame 25 side and the drain hole 229 in the longitudinal direction (left-right direction) of the lower frame 22.
The lower frame drain hole 230 is equipped with a synthetic resin blow prevention member 27 that prevents water from being blown from the outdoor side.

The indoor side surface portion 224 is formed so as to extend in the finding direction of the lower frame 22. The indoor side surface portion 224 is inclined to the outdoor side from the upper surface portion 221 toward the lower surface portion 222, and is integrally continuous with the lower portion of the inner rail 228 of the upper surface portion 221 at the upper end, and the indoor side of the lower surface portion 222 at the lower end. It is continuous with the end.
The mounting portion 225 is formed so as to extend downward from the connecting portion between the lower surface portion 222 and the indoor side surface portion 224, and is attached to the building frame via screws.

As shown in FIG. 1, the lower frame 22 configured in this way is external from the lower frame drain hole 230 via the hollow portion 226 from the drain hole 229 formed between the outer rail 227 and the inner rail 228. A drainage route 231 is provided to drain water. The drainage route 231 is schematically represented by the arrow shown in FIG.

A reinforcing material 5, a first heated foaming material 6, and a second heated foaming material 7 are provided in the hollow portion 226 of the lower frame 22.
The reinforcing material 5 is formed so as to extend in the left-right direction (longitudinal direction of the lower frame 22) with a size larger than the left-right direction dimension (dimension in the X-axis direction) of the outer sash 3, and the sash in the sliding window 1 in the closed state. It is arranged at the lower position of 3. That is, when the hollow portion 226 is divided into a first space 226A which is a lower region of the outer sash 3 and a second space 226B which is continuous in the longitudinal direction of the lower frame 22 with respect to the first space 226A, the reinforcing material 5 is arranged over the entire length of the first space 226A, and the first end portion 5A of the reinforcing member 5 extends to the second space 226B.
The reinforcing member 5 is formed of an extruded shape member made of aluminum or the like, and includes a finding piece portion 51, a prospective piece portion 52, and a mounting piece portion 53. The outdoor end of the prospective piece 52 is connected to the upper part of the finding piece 51, and the outdoor end of the mounting piece 53 is connected to the lower part of the finding piece 51. That is, the finding piece portion 51, the prospective piece portion 52, and the mounting piece portion 53 are integrally formed.

The finding piece portion 51 is formed so as to extend in the finding direction (vertical direction) of the reinforcing member 5, and is set to a dimension corresponding to the vertical spacing dimension from the upper surface portion 221 to the lower surface portion 222 of the lower frame 22. There is. The upper end of the finding piece 51 is bent along the screw hole 221A. Therefore, when arranging the reinforcing material 5, the reinforcing material 5 can be positioned in the prospective direction by bringing the bent portion of the finding piece portion 51 into contact with the screw hole 221A, and at this time, the upper end of the finding piece portion 51 is , Located approximately below the outer rail 227.
The finding piece 51 is formed with a drain hole 511 for draining rainwater that has entered the hollow portion 226. The drain holes 511 are formed, for example, in the vicinity of the left and right ends of the finding piece portion 51, and the number and arrangement locations of the drain holes 511 are set according to the size of the sliding window 1. Since FIG. 1 is a cross-sectional view of the reinforcing material 5 on the second end 5B side of the vertical frame 25 side, the drainage hole 511 is also shown, but FIG. 4 is a cross-sectional view of the combined stile 34 side. , Drainage holes 511 and the like are not shown. It is preferable that the drain hole 511 and the drain hole 229 are formed so that the positions of the lower frame 22 in the longitudinal direction (left-right direction) are different.

The prospective piece portion 52 is formed so as to extend from the upper portion of the finding piece portion 51 toward the indoor side in the prospective direction (indoor / outdoor direction) of the reinforcing member 5. The prospective piece portion 52 is set to a dimension in the prospective direction shorter than the distance dimension in the indoor / outdoor direction from the screw hole 221A to the indoor side surface portion 224. The prospective piece portion 52 is provided with a square drainage hole 521 formed by cutting out the prospective piece portion 52 as a drainage portion. The drain hole 521 is formed so that the width dimension in the X-axis direction straddles the five drain holes 229, and is formed at a position where the drain holes 229 overlap each drain hole 229 in a plan view.
The prospective piece portion 52 is fixed to the upper surface portion 221 with a fixing screw 525 which is a fastening member. A plurality of fixing screws 525 are provided along the longitudinal direction of the reinforcing member 5, and the reinforcing member 5 is fixed in a state where the prospective piece portion 52 is in contact with the upper surface portion 221. The fastening member may be a rivet.

The mounting piece portion 53 is formed so as to extend from the lower portion of the finding piece portion 51 toward the indoor side in the prospective direction of the reinforcing member 5. The mounting piece portion 53 is formed so as to extend substantially parallel to the prospective piece portion 52, and the mounting piece portion 53 is set to a prospective direction dimension longer than the prospective direction dimension of the prospective piece portion 52. Therefore, the indoor tip of the mounting piece 53 is located on the indoor side of the indoor tip of the prospective piece 52.
The mounting piece portion 53 is arranged on the prospective piece portion 52 so as to face each other in the vertical direction. Further, the outdoor end of the mounting piece 53 is provided at a position slightly above the lower end of the finding piece 51, and the lower end of the finding piece 51 is a protrusion protruding downward from the mounting piece 53. It is said to be part 513. Further, at a substantially intermediate position in the prospective direction of the mounting piece portion 53, a ridge portion 533 projecting downward like the ridge portion 513 is along the longitudinal direction of the reinforcing member 5 (longitudinal direction of the lower frame 22). Is continuously formed.

The reinforcing member 5 configured in this way is inserted into the hollow portion 226 from the end face opening on the vertical frame 25 side of the hollow portion 226 of the lower frame 22, and is located on the drainage path 231.
In the reinforcing material 5, the finding direction dimension of the finding piece portion 51 and the prospecting direction dimension of the prospective piece portion 52 are set shorter than the vertical direction and the indoor / outdoor direction of the hollow portion 226 of the lower frame 22. Therefore, the work of inserting into the hollow portion 226 can be easily performed.
Further, since the ridge portions 513 and 533 protrude from the bottom surface of the reinforcing material 5, the area in contact with the lower surface portion 222 becomes small and the frictional resistance also becomes small, so that the reinforcing material 5 is smoothly inserted into the hollow portion 226. can.
The positioning of the reinforcing member 5 can be easily performed by bringing the finding piece portion 51 into contact with the screw hole 221A and the prospective piece portion 52 in contact with the upper surface portion 221. Therefore, the reinforcing material 5 can be easily positioned at the time of screwing to the lower frame 22 of the reinforcing material 5 with the fixing screw 525.

The prospective piece portion 52 is screwed to the upper surface portion 221 of the lower frame 22 at a position deviated from the drain hole 521 in the left-right direction with a fixing screw 525, and is in close contact with the upper surface portion 221. The prospective piece portion 52 is located below the drainage hole 229 and on the indoor side of the lower frame drainage hole 230. Therefore, the main body portion of the prospective piece portion 52 is arranged at a position where the drainage path 231 is blocked between the drainage hole 229 and the lower frame drainage hole 230. The drainage holes 521 formed in the prospective piece portion 52 are arranged so as to overlap each other in the plurality of drainage holes 229, and the drainage path 231 is communicated between the drainage holes 229 and the lower frame drainage hole 230. ing.

The finding piece portion 51 is arranged below the outer rail 227 in a state where the reinforcing member 5 is screwed to the upper surface portion 221. The finding piece portion 51 is located on the indoor side of the outdoor side surface portion 223, and is located on the outdoor side of the drainage hole 229 and on the indoor side of the lower frame drainage hole 230. .. Therefore, the main body portion of the finding piece portion 51 is arranged at a position where the drainage path 231 is blocked between the drainage hole 229 and the lower frame drainage hole 230. The drainage hole 511, which is the second drainage portion formed in the finding piece portion 51, communicates the drainage path 231 between the drainage hole 229 and the lower frame drainage hole 230.
In the finding piece portion 51 arranged in the hollow portion 226 in this way, for example, even if the heated upper surface portion 221 cannot support the vertical load of the external obstacle 3 and causes thermal deformation, the lower portion of the reinforcing material 5 ( The lower end of the finding piece 51 and the mounting piece 53) come into contact with the lower surface 222, and the load of the external obstacle 3 can be supported via the finding piece 51 screwed to the upper surface 221. Therefore, the vertical load of the external sash 3 can be supported by the reinforcing material 5, and the hanging of the external sash 3 can be suppressed.

The first heated foaming material 6 and the second heated foaming material 7 are composed of a rectangular expanded graphite sheet.
As shown in FIGS. 3 and 4, the first heated foaming material 6 is attached to the upper surface of the first end portion 5A on the vertical frame 24 side in the mounting piece portion 53 of the reinforcing member 5. Specifically, the reinforcing member 5 is attached to the mounting piece portion 53 from the position of the prospective surface on the vertical frame 24 side of the mating frame 34 to the edge position on the vertical frame 24 side in a plan view.
Three expanded graphite sheets are laminated on the first heated foaming material 6. The first heated foaming material 6 foams when heated by the heat of a fire, and as shown in FIG. 5, the finding piece portion 51 of the reinforcing material 5, the prospective piece portion 52, the upper surface portion 221 and the mounting piece The space surrounded by the portion 53, the lower surface portion 222, and the indoor side surface portion 224 is filled. Therefore, of the first space 226A of the hollow portion 226, in the space on the indoor side of the found piece portion 51, the edge on the side of the mating stile 34 is closed with the first heated foaming material 6, and the second space 226B Both will be in a blocked state.

As shown in FIGS. 1 and 3, the second heated foaming material 7 is attached to the upper surface of the second end portion 5B on the vertical frame 25 side in the mounting piece portion 53 of the reinforcing member 5. Specifically, the reinforcing member 5 is attached to the mounting piece 53 from the position where it overlaps the drain hole 229 in a plan view to the edge position on the vertical frame 25 side.
Like the first heated foaming material 6, the second heated foaming material 7 is also laminated with three expanded graphite sheets as shown in FIG. The second heated foaming material 7 is foamed by the heat of a fire, and the finding piece portion 51 of the reinforcing material 5, the prospective piece portion 52 and the upper surface portion 221, the mounting piece portion 53 and the lower surface portion 222, and the indoor side surface portion 224. Fill the space surrounded by. Therefore, in the first space 226A of the hollow portion 226, the end opening on the vertical frame 25 side in the space on the indoor side of the found piece portion 51 is closed by the second heated foam material 7.
Therefore, in the first space 226A, the space on the indoor side of the found piece 51 is shielded by the first heated foaming material 6 and the second heated foaming material 7, so that flames and heat can be prevented from entering. .. The number of expanded graphite sheets of the first heated foaming material 6 and the second heated foaming material 7 is not limited to three, and may be an amount that can block each space.

[Action of Embodiment]
In the event of a fire, etc., the flame is shut off as follows.
When a fire breaks out outside the room with the outer sash 3 and the inner sash 4 in the closed position and the temperature of the hollow portion 226 rises above a predetermined temperature due to the heat, the first heated foam material 6, the second The heated foam material 7 foams. For this reason, in the space on the indoor side of the found piece 51 of the first space 226A, the second space 226B side (combination stile 34 side) is closed with the first heated foam material 6, and the vertical frame 25 side is the second. It is closed with the heated foam material 7.
In the lower frame 22, in the first space 226A where the reinforcing material 5 is arranged, since the outer sash 3 is arranged, the indoor side of the outer rail 227 on the upper surface portion 221 is not directly exposed to the flame, and that portion is It will not be damaged by flames. Further, when the outdoor side of the outer rail 227 of the upper surface portion 221 or the outdoor side surface portion 223 is damaged by being exposed to a flame, the finding piece portion 51 of the reinforcing material 5 is arranged inside the outdoor surface portion. Even if the 223 or the like is damaged and a flame or the like enters, it is possible to prevent the flame or the like from entering the indoor side of the finding piece portion 51 in the first space 226A by being blocked by the finding piece portion 51.
On the other hand, in the lower frame 22, since the outer sash 3 is not arranged in the second space 226B, the upper surface portion 221 on the outdoor side of the inner sash 4 is exposed to flames including between the outer rail 227 and the inner rail 228. May be damaged. In addition, the outdoor surface portion 223 of the second space 226B portion may also be exposed to flame and damaged. In this case, a flame or the like enters the second space 226B from the damaged part, but the portion connected to the first space 226A (the lower region of the combination stile 34) is blocked by the first heated foam material 6, and the first It is possible to prevent flames and the like from entering the space on the indoor side of the finding piece portion 51 of the first space 226A from the second space 226B.

Further, when the second heated foaming material 7 foams due to the heat of a fire, the second heated foaming material 7 closes the edge of the first space 226A on the vertical frame 25 side. Further, the second heated foam material 7 expands upward along the found piece portion 51, closes the drain hole 521 of the prospective piece portion 52, and further closes the drainage hole 229 of the upper surface portion 221. The route 231 is surely blocked.

The lower frame 22 is reinforced in the event of a fire or the like as follows.
When the temperature of the upper surface portion 221 of the lower frame 22 rises and the rigidity yield point decreases based on the heat of a fire or the like, when the vertical load of the external obstacle 3 cannot be supported by the upper surface portion 221, the upper surface portion 221 is concerned. Slight thermal deformation occurs. When this thermal deformation occurs, the finding piece portion 51 of the reinforcing member 5 moves slightly downward and comes into contact with the lower surface portion 222. In this state, the reinforcing member 5 supports the vertical load of the external obstacle 3 applied to the outer rail 227 and the upper surface portion 221 via the prospective piece portion 52 and the finding piece portion 51 screwed to the upper surface portion 221.
In this way, the reinforcing material 5 reinforces the lower frame 22 and suppresses thermal deformation of the lower frame 22.

[Effect of this embodiment]
(1) Since the first heated foam material 6 capable of shielding the second space 226B and the indoor space of the finding piece portion 51 of the first space 226A is provided in the hollow portion 226 of the lower frame 22, in the event of a fire. Even if the second space 226B side of the lower frame 22 is damaged and a flame or the like enters the second space 226B, the entry into the first space 226A can be prevented. Therefore, it is possible to prevent the upper surface portion 221 facing the first space 226A from being damaged by heat, and it is also possible to prevent the fixing force of the reinforcing member 5 fixed to the upper surface portion 221 by the fixing screw 525 from being lowered. Therefore, the load of the outer sash 3 can be reliably supported by the reinforcing material 5 via the upper surface portion 221 and the outer sash 3 can be prevented from hanging down, so that the fire resistance performance of the sliding window 1 can be improved.
(2) Further, since the second heated foam material 7 for closing the end opening on the vertical frame 25 side in the indoor space of the finding piece 51 of the first space 226A is provided, the space between the vertical frame 25 and the lower frame 22 is provided in the event of a fire. Even if a gap is formed in the space 226A, it is possible to prevent the flame from entering the first space 226A through the end opening on the vertical frame 25 side of the first space 226A. Therefore, it is possible to prevent a decrease in the fixing force between the upper surface portion 221 and the reinforcing member 5 in the first space 226A, and it is also possible to prevent the outer sash 3 from hanging down, so that the fire resistance performance of the sliding window 1 can be improved.
(3) Further, since the reinforcing material 5 is arranged over at least the entire length of the first space 226A, the outdoor side surface portion 223 and the like facing the first space 226A are damaged, and the flame enters the indoor side of the outdoor surface portion 223. However, the finding piece 51 can prevent the entry into the indoor side. Therefore, it is possible to prevent a decrease in the fixing force between the upper surface portion 221 and the reinforcing member 5 in the first space 226A, and it is also possible to prevent the outer sash 3 from hanging down, so that the fire resistance performance of the sliding window 1 can be improved.

(4) By closing the drainage hole 521 formed in the reinforcing material 5 by foaming the second heated foaming material 7, the drainage path 231 can be blocked, so that the flame can be prevented from entering the first space 226A, and the pulling material can be pulled. The fire resistance performance of the difference window 1 can be improved.
Further, by attaching the first heated foaming material 6 and the second heated foaming material 7 to the reinforcing material 5 itself, the reinforcing material 5, the first heated foaming material 6, and the second heated foaming material 7 are combined into one unit. It can be handled. Therefore, the reinforcing material 5, the first heated foaming material 6, and the second heated foaming material 7 can be easily installed on the lower frame 22. In particular, the first heated foaming material 6 must be arranged near the mating stile 34, but if it is attached to the first end portion 5A of the reinforcing material 5, the reinforcing material 5 should be inserted into the hollow portion 226. It can be easily placed.
Further, since the second heated foaming material 7 that closes the end opening of the first space 226A is also used as the foaming material that closes the drain hole 521, it is easier to install than when separate foaming materials are provided. , Cost can also be reduced.
(5) Since the reinforcing material 5, the first heated foaming material 6 and the second heated foaming material 7 attached to the reinforcing material 5 are housed in the hollow portion 226, it is necessary to add various reinforcing members to the outside of the lower frame 22. It is possible to design a sliding window 1 having a structure that is not different from that of a fitting in which the lower frame 22 is not provided with a reinforcing material 5 in appearance.

[Modification example]
The present invention is not limited to the configuration described in the above embodiments, and modifications within the range in which the object of the present invention can be achieved are included in the present invention.
The configuration of the reinforcing material 5 is not limited to the above-described embodiment, and is arranged, for example, on the outdoor side finding piece portion provided in the same manner as the finding piece portion 51 of the reinforcing material 5 and on the indoor side of the outdoor side finding piece portion. It may be composed of a channel material having an indoor side finding piece and a prospective piece connecting between these finding pieces, and the lower surface side is open. The reinforcing material 5 may include a finding piece portion that can support the load of the external obstacle 3 and a prospective piece portion that is screwed to the upper surface portion 221.

In the above-described embodiment, the reinforcing material 5 is formed so as to be larger than the lateral dimension of the outer sash 3, but the reinforcing material 5 is not limited to this, and may be formed in various lengths. For example, the reinforcing material 5 may be set to have substantially the same dimensions as the dimensions of the external obstacle 3 in the left-right direction (X-axis direction). However, in this case, when the first heated foaming material 6 is attached to the first end portion of the reinforcing material 5, the first heated foaming material 6 is located below the mating stile 34. As shown in FIG. 2, a heated foam material 341 that closes the gap between the outer sash 3 and the upper surface portion 221 of the lower frame 22 may be provided at the lower end of the combination stile 34, and a fire broke out outside the room. In some cases, the heat is insulated by the heated foaming material 341 of the sash 34, the temperature rise in the hollow portion 226 may decrease, and the foaming timing of the first heated foaming material 6 may be delayed, and the foaming start temperature may be delayed. It is necessary to install a heat foaming material with a lower temperature, which increases the types of heat foam materials used for fittings. Therefore, it is preferable that the first heated foaming material 6 is arranged on the second space 226B side of the combination stile 34 as in the above embodiment.

In the above embodiment, the reinforcing material 5 has drain holes 511 and 521, but it does not necessarily have to be provided with drain holes. For example, the reinforcing member 5 may be arranged so as to form a gap between the mounting piece portion 53 and the lower surface portion 222, and drainage may be performed through the gap. Further, even when the hollow portion 226 is not used as a drainage route, it is not necessary to form a drainage hole in the reinforcing material 5.
In the above embodiment, the finding direction dimension of the finding piece portion 51 is set to be slightly shorter than the vertical distance from the upper surface portion 221 to the lower surface portion 222 of the lower frame 22, but the same dimension as the above-mentioned spacing dimension. It may be set.
In the above embodiment, the reinforcing material 5 is formed of an extruded shape made of aluminum, but may be formed by bending of steel.
In the above embodiment, the reinforcing member 5 is composed of an integrally formed finding piece portion 51, a prospective piece portion 52, and a mounting piece portion 53, but is not limited thereto. For example, the finding piece portion 51, the prospective piece portion 52, and the mounting piece portion 53 may be formed as separate members, and the reinforcing member 5 may be formed by connecting them with screws or the like.

In the above-described embodiment, the mounting piece portion 53 may be formed so as to extend horizontally and straight toward the indoor side, or may be formed so as to extend so as to be inclined toward the indoor side. Further, the mounting piece portion 53 may be formed by being curved and extending from the lower surface portion 222 along the indoor side surface portion 224. The upper surface of the mounting piece 53 may be formed flat or curved.
In the above embodiment, the reinforcing member 5 includes, but is not limited to, the finding piece portion 51, the prospective piece portion 52, and the mounting piece portion 53. For example, the reinforcing member 5 may be configured by omitting the mounting piece portion 53. When the configuration of the mounting piece portion 53 is omitted, the first heated foam material 6 and the second heated foam material 7 are provided on either or both of the finding piece portion 51 and the prospective piece portion 52.

In the above embodiment, the first heated foaming material 6 is attached to the reinforcing material 5, but it may be attached to the hollow portion 226 of the lower frame 22 instead of the reinforcing material 5. Similarly, the second heated foaming material 7 may be attached to the hollow portion 226 of the lower frame 22 instead of the reinforcing material 5. However, there is an advantage that the first heated foaming material 6 and the second heated foaming material 7 can be easily arranged at appropriate positions when they are attached to the reinforcing material 5 and arranged.
Further, in the above-described embodiment, the first heated foaming material 6 and the second heated foaming material 7 are provided, but the possibility of flame intrusion from the vertical frame 25 side is lower than that of the second space 226B. The second heated foaming material 7 may not be provided, but only the first heated foaming material 6 may be provided.
Further, in the above-described embodiment, the heated foaming material that closes the drain hole 521, which is the drainage portion, is also used as the second heated foaming material 7, but a heated foaming material that is different from the second heated foaming material 7 is used. You may use it. Further, in the above embodiment, the drain hole 511 which is the second drainage portion is not closed by the heated foaming material, but a heated foaming material which closes the drainage hole 511 may be provided, and this heated foaming material is the second. The heated foaming material 7 may be used in combination, or a separate heated foaming material may be used.
The fitting is not limited to the sliding window 1, and may be a single sliding window in which one of the outer sash 3 and the inner sash 4 is fixed so as not to be slidable.

1 ... Sliding window, 2 ... Window frame, 3 ... External sash, 4 ... Internal sash, 5 ... Reinforcing material, 5A ... First end, 6 ... First heated foam material, 7 ... Second heated foam material, 21 ... upper frame, 22 ... lower frame, 24, 25 ... vertical frame, 31, 41 ... upper stile, 32, 42 ... lower stile, 33, 43 ... door front stile, 34, 44 ... combination stile, 35, 45 ... Double glazing, 51 ... Found piece, 52 ... Expected piece, 53 ... Mounting piece, 221 ... Top surface, 221A ... Screw hole, 222 ... Bottom surface, 223 ... Outdoor surface, 224 ... Indoor side surface, 225 ... Mounting part, 226 ... Hollow part, 226A ... First space, 226B ... Second space, 227 ... Outer rail, 228 ... Inner rail, 229 ... Drainage hole, 230 ... Lower frame drainage hole, 231 ... Drainage route, 511, 521 ... Drainage hole, 513, 533 ... Protruding part.

Claims (6)

A frame body having a lower frame provided with a continuous hollow portion along the longitudinal direction, and
It is equipped with an external shoji and an internal shoji arranged inside the frame.
At least one of the outer sash and the inner sash is slidable along the lower frame.
The hollow portion includes a first space located below the outer sash in a closed position and a second space continuous with the first space in the longitudinal direction of the lower frame.
In the hollow part,
A reinforcing material arranged at least in the first space and having a finding piece portion capable of supporting the load of the external sash.
A first heated foaming material that foams by heating and is arranged at a position that can shield the space on the indoor side of the found piece portion of the first space and the second space is provided .
The first heated foaming material is a fitting characterized in that the foaming closes a space on the indoor side of the found piece in the hollow portion and blocks the space from the second space. In the fitting according to claim 1,
In the hollow portion, a second heated foaming material which is foamed by heating and is arranged at a position where the end opening on the vertical frame side in the space on the indoor side of the found piece portion of the first space can be closed. Joinery characterized by being provided. In the fitting according to claim 1 or 2.
The first heated foaming material is a fitting characterized in that it is attached to the reinforcing material. In the fitting according to claim 3,
In the reinforcing material, a first end portion on the side of the mating stile of the shoji is extended to the second space.
A fitting characterized in that the first heated foaming material is attached to the first end portion of the reinforcing material. In the fitting according to any one of claims 1 to 4.
The lower frame includes an upper surface portion, a lower surface portion, an outdoor side surface portion, and an indoor side surface portion for partitioning the hollow portion.
The reinforcing material includes the finding piece portion, a mounting piece portion extending from the lower part of the finding piece portion to the indoor side, and a prospective piece portion extending from the upper part of the finding piece portion to the indoor side.
The prospective piece portion is fixed to the upper surface portion by a fastening member.
The first heated foam material is a fitting characterized in that it is attached to the attachment piece portion. In the fitting according to claim 5,
A drain hole is formed in the upper surface portion of the lower frame.
A lower frame drainage hole is formed on the outdoor side surface of the lower frame.
A drainage portion corresponding to the drainage hole is formed in the prospective piece portion of the reinforcing material.
A fitting characterized in that a heated foaming material capable of closing the drainage portion by foaming by heating is attached to the mounting piece portion of the reinforcing material.

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