JP2005188248A - Double sliding sash - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a double sliding sash which hardly makes a person feel chilly even when the person touches a draining section in winter. <P>SOLUTION: The double sliding sash 1 is provided with a frame body 2 formed of an upper rail 2a, a lower rail 2b, and right and left stiles 2c, 2c and Shoji 3a, 3b provided to be openable and closable in the frame body 2. A drain opening 18 communicating with the outdoor side is provided at the upper face xb of the indoor side between the inside and outside rails 4b, 4a of the lower rail 2b, and an inside draining part 15 with a valve 20 is fitted to the drain opening 18. A draining part 30 is formed at an opposing part facing the indoor face of the outside rail 4a in the draining parts 15. A fine clearance f is formed between the draining part 30 and the indoor side face of the outside rail 4a. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a sliding sash, and more particularly to a sliding sash that improves drainage.

  A sash such as a window sash provided in an opening of a building frame includes a frame composed of an upper frame, a lower frame and left and right vertical frames attached to the building frame, and a shoji attached to the frame. . In the case of an aluminum sash or the like, generally, the lower frame is formed in a step-like shape having a downward slope toward the outdoor side, thereby improving drainage. On the other hand, in resin sashes that are widely used in cold districts due to their excellent heat insulation properties, the upper frame, lower frame, and left and right vertical frames are the same for the purpose of reducing manufacturing costs and improving airtightness. Attempts have been made to form a rectangular frame by making a cross-sectional shape and welding by adjoining adjacent ends.

  In the above-described resin sash, if the lower frame has a stepped cross section like an aluminum sash, the upper frame and the vertical frame also have the same cross-sectional stepped shape, and the size of the shoji inside and outside must be changed. For this reason, it is preferable that the lower frame is not formed into a stepped cross section, and the upper surface excluding protrusions such as rails has a substantially flat shape. However, when the lower frame is formed in a substantially flat shape in this way, drainage is deteriorated, and rainwater or the like collected on the upper surface of the lower frame on the outdoor side penetrates into the upper surface on the indoor side of the lower frame and accumulates. It is expected that this problem will occur.

  Therefore, the present applicant has proposed a sliding sash that can improve drainage even if the lower frame has a substantially flat shape (see Japanese Patent No. 3404308). In this sliding sash, the upper surface portion of the lower frame is partitioned into an indoor upper surface portion and an outdoor upper surface portion by a shoji in the closed position, and water that has entered the indoor upper surface portion is placed in the lower frame. An internal drainage part having a valve for draining inside, an outer drainage part having a valve for draining from the inside of the lower frame to the outdoor side, and a drainage cap for draining the water accumulated in the upper surface of the outdoor side to the inside of the lower frame, The inner drainage part and the drainage cap are provided at both ends in the longitudinal direction between the inner and outer rails on the upper surface of the lower frame.

Japanese Patent No. 3404308

  By the way, in a highly airtight and highly insulated house, the ventilation system is operating, and in the sliding sash, the internal drainage parts are made of hard resin and there is a limit to the airtightness when the valve is closed. However, outside air has been taken into the room through the internal drainage parts. For this reason, when a hand is held over the internal drainage parts in winter, cold air may be felt.

  Accordingly, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a sliding sash in which it is difficult to feel cold even if a hand is held over an internal drainage part in winter.

  The present invention relates to a sliding sash comprising a frame composed of an upper frame, a lower frame, and left and right vertical frames, and a shoji that can be opened and closed in the frame, and a chamber between the inner and outer rails of the lower frame. A drain outlet communicating with the outside is provided on the inner upper surface, and an inner drainage part having a valve is attached to the drainage outlet, the inner drainage part is provided with a drainage part at a portion facing the indoor surface of the outer rail, and the drainage part A minute gap is provided between the inner surface of the outer rail and the inner surface of the outer rail.

  According to the present invention, there is provided a sliding sash including a frame composed of an upper frame, a lower frame, and left and right vertical frames, and a shoji provided in the frame so as to be openable and closable, between the inner and outer rails of the lower frame. Provided with a drain outlet communicating with the outdoor on the indoor upper surface portion, and attaching an internal drainage component with a valve to the drainage outlet, the inner drainage component having a drainage portion at a portion facing the indoor surface of the outer rail, Since a minute gap is provided between the drainage section and the indoor surface of the outer rail, it is difficult to feel cold air even in the winter, even if you hold your hand over the drainage parts.

  The best mode for carrying out the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a schematic front view of an outdoor side showing an embodiment in which the present invention is applied to a resin sliding sash, FIG. 2 is a view showing a mounting structure of an internal drainage component, and FIG. FIG. 4 is an enlarged sectional view taken along line BB in FIG. 1, FIG. 5 is a view showing an internal drainage part, (a) is a front view, and (b) is a side view.

  In these drawings, reference numeral 1 denotes a resin sliding sash (hereinafter also referred to as a resin sash). This resin sash 1 includes a rectangular frame (sash frame) 2 attached to a building frame T and a frame. 2 are equipped with sliding-type shojis 3a and 3b. The frame 2 includes an upper frame 2a, a lower frame 2b, and left and right vertical frames 2c, 2c made of synthetic resin, for example, vinyl chloride, and these frame members preferably have the same cross-sectional shape.

  The frame material constituting the upper frame 2a, the lower frame 2c, and the left and right vertical frames 2c, 2c has an inner surface portion (upper surface portion in the lower frame) 2x and an outer surface portion (lower surface portion in the lower frame) in order to provide rigidity and heat insulation. ) The hollow structure has a plurality of, for example, three hollow portions 2z partitioned by a partition wall 2p between 2y, and the inner surface portion 2x has, for example, protrusions 4a and 4b having an H-shaped cross section along the longitudinal direction. Nijo is formed. These ridges 4a and 4b serve as inner and outer rails for guiding and supporting the inner and outer shojis 3a and 3b to be movable in the left-right direction in the upper frame 2a and the lower frame 2b. It is preferable that the two rails 4a and 4b formed of the protrusions have substantially the same height in order to make the sizes of the inner and outer shojis 3a and 3b the same.

  Inward ribs 5 and 6 are formed along the longitudinal direction at the indoor end and the outdoor end of the frame member. The inward rib 5 at the outdoor end of the frame member is a screen door rail for guiding and supporting a screen door (not shown) so as to be movable in the left-right direction in the upper frame 2a and the lower frame 2b. The frame body 2 is attached to the building body T with a fixing tool such as a screw in a state in which the indoor side is inserted into the opening of the building at a substantially intermediate portion of the outer surface portion 2y of the frame material (this is semi-externally attached). Outward ribs 7 are formed along the longitudinal direction of the frame member.

  A reinforcing member 8 that supports the lower portion of the lower frame 2b and supports the outward rib 7 from the outdoor side is attached by screws 9 to the lower portion of the lower frame 2b. It is attached and fixed to Ta with a fastener such as a screw. The reinforcing member 8 is made of a highly rigid material such as an extruded shape of an aluminum alloy. In order to prevent deformation of the lower frame 2b to which the weight of the shojis 3a and 3b is applied, a core material 10 made of, for example, an aluminum alloy extrusion is inserted into the hollow portion 2z of the lower frame 2b. preferable.

  In an aluminum sash, the lower frame is generally formed in a stepped cross section to improve drainage. However, in the resin sash 1 of the present embodiment, a frame material having the same cross-sectional shape is used. Therefore, if the lower frame 2b is stepped in cross section, the upper frame 2a and the vertical frame 2c are also stepped in cross section and the appearance is poor, and the size of the shojis 3a and 3b must be changed. The inner surface 2x excluding the protrusions 4a and 4b and the inward ribs 5 and 6 is formed substantially flat without being formed in a stepped shape. In addition, it is preferable that the inner surface portion 2x of the frame member is slightly inclined downward toward the outdoor side in consideration of drainage at the upper surface portion of the lower frame 2b.

  The upper frame 2a, the lower frame 2b, and the left and right vertical frames 2c, 2c are cut at an angle of 45 degrees so that the adjacent end portions 2w are butted and joined, and the adjacent end portions 2w are butted together. A square frame 2 is formed in which the airtightness of the joint is improved by welding. Since the upper frame 2a, the lower frame 2b, and the left and right vertical frames 2c, 2c have the same cross section, they can be extruded with the same mold, reducing manufacturing costs, and joining adjacent end portions 2w together. In this case, the bonding area can be increased, and the bonding strength can be improved.

  The shojis 3a and 3b are composed of a rectangular casing 11 made of a synthetic resin upper casing 11a, a lower casing 11b, and left and right vertical casings 11c and 11c, and a glass panel 12 fitted inside the casing 11. It is mainly composed. The upper rod 11a, the lower rod 11b, and the left and right vertical rods 11c and 11c are preferably formed in the same cross-sectional shape as the frame member 2 and are welded and joined by abutting adjacent end portions 11w. Moreover, it is preferable that the upper rod 11a, the lower rod 11b, and the left and right vertical rods 11c, 11c have a hollow structure having a hollow portion 11z, and the core members 13a, 13b, 13c are fitted in the hollow portion 11z. . As the glass panel 12, the double-glazed glass (pair glass) which has heat insulation is preferable. A door wheel 14 is attached to the lower arm 11b of the shoji 3a and 3b.

  The upper surface 2x of the lower frame 2b is divided into an indoor upper surface xb and an outdoor upper surface xa by the shojis 3a and 3b in the closed position. In the lower frame 2b, since the upper surface portion 2x is formed to be substantially flat, even if some of the rails 4a, 4b and the screen door rail 5 are cut out for drainage, the rainwater etc. collected on the upper surface portion 2x It is difficult to smoothly drain water to the outdoor side, and the water accumulated on the outdoor upper surface portion xa tends to enter the indoor upper surface portion xb. Therefore, the lower frame 2b includes an internal drainage component (also referred to as an internal drainage valve) 15 having a valve 20 for draining water that has entered the indoor upper surface portion xb from the indoor side to the inside (hollow portion) 2z of the lower frame 2b. In addition, an external drainage part (also referred to as an external drainage valve) 16 having a valve 23 for draining from the inside (hollow part) 2z of the lower frame 2b to the outdoor side is provided to improve drainage. In addition, the lower frame 2b is provided with a drainage hole 17 that is a drainage part for draining water accumulated in the outdoor upper surface portion xa to the inside 2z of the lower frame 2b.

  As shown in FIG. 4, the inner drainage part 15 is provided in the indoor upper surface part xb of the lower frame 2b, and the drainage hole 17 is provided in the outdoor upper surface part xa. The inner drainage parts 15 and the drainage holes 17 are provided at both end positions in the longitudinal direction between the inner and outer rails 4a and 4b on the upper surface 2x of the lower frame 2b and close to the outer rail 4a side. Is preferred. Moreover, it is preferable that the outer drainage component 16 is provided in the longitudinal direction both ends position in the front end part (outdoor end) of the lower frame 2 b, that is, a position corresponding to the inner drainage component 15 and the drainage hole 17.

  As shown in FIGS. 2 and 5 to 7, the inner drainage component 15 is attached to a slotted drainage port 18 provided on the indoor side upper surface portion xb between the inner and outer rails 3 a and 3 b of the lower frame 2 b. ing. The inner drainage part 15 includes a drainage part (opening) 30 at a portion facing the indoor surface of the outer rail 4a in order to make it difficult to feel cold even if the hand is held on the inner drainage part 15 in winter. A minute gap F of, for example, about 1 to 2 mm is provided between the inner surface of the outer rail 3a. The reason why the gap F is provided between the drainage portion 30 and the indoor surface of the outer rail 3a is to ensure drainage. Specifically, the internal drainage component 15 is integrated with or separated from a vertical body 19 made of a synthetic resin, which is inserted and fitted into the drainage port 18 from above in the vertical direction, and an upper part of the body 19 so as to cover it. It is mainly comprised from the cover member 31 provided in a body (illustrated example). The main body 19 is formed in a drainage duct shape having an inlet portion 19a at the upper end and an outlet portion 19b at the lower front surface, and is inserted from the drainage port 18 into the inside (hollow portion) 2z of the lower frame 2b. A lattice 19c is integrally provided at the entrance 19a of the main body 19 to prevent intrusion of dust.

  In addition, a synthetic resin plate-like valve 20 that normally closes the outlet portion 19b suspended under its own weight is openable and closable on the main body 19 via both support shafts 20a and bearings 19d (rotating). Possible). Further, the main body 19 is provided with a flange-like locking portion 19e that is locked to the upper peripheral portion of the drain port 18 of the lower frame 2b at the upper end portion, and partially on the lower peripheral portion of the drain port 18. The retaining portions 19f and 19g that are locked to the front and rear are projected in the front-rear direction. At both ends in the longitudinal direction of the upper surface portion of the main body 19, flange-like locking portions 19e are not provided in order to introduce water accumulated on the upper surface of the lower frame 2b into the inlet portion 19a.

  The inner drainage component 15 is improved in drainage by increasing the height from the outlet 19b to the inlet 19a, that is, a drop (water level). The inner drainage part 15 guides water such as rain water and dew condensation water reaching the indoor upper surface part xb of the lower frame 2b from the inlet 19a into the main body 19, and the valve 20 is opened by the water pressure to open the interior 2z of the lower frame 2b. While draining smoothly, the valve 20 is normally closed, so that intrusion of outside air or the like into the room is suppressed or prevented.

  The cover member 31 has a drainage part (opening) 30 facing the indoor surface of the outer rail 4 a, and the drainage part 30 communicates with the inlet part 19 a of the main body 19. The cover member 31 in the illustrated example is detachably attached to the upper surface portion of the main body 19 so as to cover the entire upper surface portion. Vertical and horizontal grids 32 and 33 for preventing entry of dust are integrally provided in the drainage part 30 which is an inlet part of the cover member 31. Further, the cover member 31 is integrally provided with a pair of locking pieces 34 and 34 for fixing the cover member 31 to the main body 19 so as to protrude downward. The locking piece 34 is integrally formed with the vertical lattice 32 and is inserted (inserted) into the inlet 19 a of the main body 19. Further, a locking portion 34 a that is locked by its own elastic force at the lower end portion of the lattice 19 c in the inlet portion 19 a of the main body 19 is projected from the distal end side of the locking piece portion 34. The pair of locking pieces 34, 34 are designed to be inserted along the outer side surfaces of the lattices 19 c at both ends of the inlet 19 a of the main body 19, so that they cannot be inserted (inserted) at the wrong positions. . A gap g is provided between both side surface portions of the cover member 31 and both longitudinal end portions of the upper surface portion of the main body 19 so as not to inhibit introduction of water from both longitudinal end portions of the upper surface portion of the main body 19. Is provided.

  On the other hand, as shown in FIGS. 2 to 8 (a), (b), (c), and (d), the outer drainage component 16 is a long hole drainage provided on the lower side of the front portion of the lower frame 2b. It has a synthetic resin main body 22 that is inserted and fitted into the mouth 21 from the horizontal direction. The main body 22 has an insertion portion 22a that is inserted into the inside (hollow portion) 2z of the lower frame 2b from the drain port 21, and an abutting portion 22b that is in contact with the front surface portion of the lower frame 2b. . The insertion portion 22a is opened at the tip and lower portions for introducing water.

  The contact portion 22b is provided with an opening portion 22c communicating with the insertion portion 22a side, and a plate-shaped valve made of a synthetic resin that normally closes the opening portion 22c while being suspended by its own weight. 23 is provided so as to be openable and closable (rotatable) via both support shafts 23a and bearings 22d. The water that has reached the inside 2z of the lower frame 2b flows into the main body 22 of the outer drainage component 16, pushes the valve 23 with the water pressure, and is drained to the outside (outdoors). In this way, the external drainage component 16 smoothly drains the water in the lower frame 2b to the outside, while the lid 23 is normally closed to prevent the entry of outside air, wind, insects and dust. Yes.

  On both side portions of the insertion portion 22a, a retaining portion 22e that is locked to the inner peripheral edge of the drain port 21 is projected. Further, the drainage part 16 is provided with a drain hole 24 which is a communication part that communicates with the valve 23 to the outside of the room at all times to prevent the valve 23 from moving due to freezing of residual water. A plurality of the drain holes 24 are provided in the form of vertical grooves having a small diameter on the lower contact surface portion 22f that contacts the lower side of the front surface of the lower frame in the contact portion 22b of the external drainage component 16. That is, since the drain hole 24 is opened to the outside with a small diameter downward from the bottom front edge portion in the lower frame 2b, the water in the lower frame 2b is smoothly drained naturally and the inside of the outer drainage component 16 is removed. Water remains and prevents the valve 23 from freezing in the fully closed state, while suppressing the entry of outside air, wind, insects and dust.

  As shown in FIG. 4, the drain hole 17 is a round hole-like drain port provided in the outdoor side upper surface portion xa of the lower frame 2 b. Since the drain hole 17 is disposed on the outdoor side, unlike the internal drain part 15, the drain hole 17 does not include a valve that prevents the outside air, wind, or the like from entering the indoor side. In the inside 2z of the lower frame 2b, as shown in FIG. 2, a partition wall 2p and a core material 10 may be provided so as to prevent the flow of drainage. By cutting out a part of the wall 2p and the core member 10, a drainage flow path 26 from the inner drainage part 15 and the drainage hole 17 to the outer drainage part 16 may be secured.

  Next, the mounting construction method and operation of the resin sash 1 having the above configuration will be described. When the resin sash 1 is attached to the building frame T, first, the reinforcing member 8 is attached and fixed to the lower part of the lower frame 2b of the frame 2 with screws 9. Next, the indoor side of the frame 2 is fitted into the opening of the housing T from the outside of the building, and the outward rib 7 is brought into contact with the outdoor surface of the housing T, so that the upper frame 2a and the left and right vertical frames 2c, 2c The outward ribs 7 are attached and fixed to the frame T of the building, and the reinforcing member 8 is fixed to the window base Ta of the frame T with fixing tools such as screws and nails. Then, the shojis 3a and 3b may be attached to the frame 2.

  According to the resin sash 1 configured as described above, the frame 2 including the upper frame 2a, the lower frame 2b, and the left and right vertical frames 2c and 2c, and the shojis 3a and 3b attached to the frame 2 are provided. The inner and outer rails 4a, 4b are sliding sashes having substantially the same height, and the upper surface portion of the lower frame 2b is made up of the indoor side upper surface portion xb and the outdoor outer surface upper surface portion xa by the shoji 3a, 3b in the closed position. And is drained from the inside of the lower frame 2b to the outdoor side. The inner drainage part 15 has a valve 20 for draining the water that has entered the indoor side upper surface portion xb into the lower frame 2b. An outer drainage part 16 having a valve 23 and a drainage hole 17 for draining water accumulated in the outdoor upper surface part xa into the lower frame 2b are provided, and the inner drainage part 15 and the drainage hole 17 are the upper surface part of the lower frame 2b. Are arranged at both end positions in the longitudinal direction between the inner and outer rails 4a and 4b. Therefore, the water accumulated on the outdoor upper surface portion xa of the lower frame 2b can be smoothly drained through the drainage hole 17, thereby preventing water from entering the indoor upper surface portion xb from the outdoor upper surface portion xa of the lower frame 2b. In addition, the water that has entered the indoor upper surface portion xb from the outdoor upper surface portion xa of the lower frame 2b can be drained by the internal drainage component 15 provided with the valve 20, and is placed inside the lower frame 2b. Even if the inner and outer rails 4a and 4b to be drained have substantially the same height and the upper surface of the lower frame has a substantially flat shape, the drainage can be improved.

  In addition, water such as rainwater that has entered the indoor side upper surface part xb from the outdoor upper surface part xa of the lower frame 2b is first smoothly drained into the inner part 2z of the lower frame 2b through the inner drainage part 15 by the drop. Since the water is smoothly drained from the inside 2z of the lower frame 2b to the outside via the external drainage component 16, the drainage performance is improved. In addition, since the outside air and wind are doubly blocked by the outer drainage component 16 and the inner drainage component 15, airtightness can be ensured. In addition, since the external drainage component 16 is provided, it is possible to prevent insects and the like from entering.

  In particular, the inner drainage component 15 includes a drainage portion 30 at a portion facing the indoor surface of the outer rail 4a, and a minute gap F is provided between the drainage portion 30 and the indoor surface of the outer rail 4a. Even if you hold your hand over the internal drainage parts, it is hard to feel cold. That is, since the drainage part 30 is opposed to the outdoor surface of the outer rail 4a and the gap between the drainage part 30 and the indoor surface of the outer rail 4a is a minute gap F, the drainage part is upward or around with a large gap area. Unlike those that are open, even if a small amount of outside air is taken into the room through the internal drainage part 15 due to the operation of the ventilation system of a highly airtight and highly insulated house, even if you hold your hand over the internal drainage part 15 in the winter, It can make it hard to feel cold.

  The inner drainage component 15 includes a main body 19 attached to the drainage port 18 formed in the indoor upper surface portion xb between the inner and outer rails 4a and 4b of the lower frame 2b, and a cover member 31 detachably attached to the main body 19. Therefore, it can be removed and cleaned easily, and of course, it is possible to easily cope with an existing sliding sash provided with the internal drainage part 15 consisting only of the main body 19 only by attaching the cover member 31. . Further, since the cover member 31 covers the entire upper surface portion of the main body 19, it is splashed from the gap between the both longitudinal ends of the upper surface portion of the main body and the drain port 18 (the portion without the flange-shaped locking portion 19 e) during the watertight test. Even if this occurs, splashing can be prevented from being scattered, so that it is not necessary to install a sealing material in the gap as a countermeasure against splashing.

  Further, since the drainage hole 24 is provided in the outer drainage component 16, water does not remain in the outer drainage component 16, and the outer drainage component 16 is prevented from freezing with residual water in winter. And can guarantee drainage. For example, even when the valve cannot be opened or closed such as when the remaining water is frozen, the water can be reliably drained.

  As mentioned above, although embodiment thru | or example of this invention has been explained in full detail with drawing, this invention is not limited to the said embodiment thru | or example, Various in the range which does not deviate from the summary of this invention. Design changes can be made. For example, the cross-sectional shapes of the upper frame 2a, the lower frame 2b, and the left and right vertical frames 2c and 2c constituting the frame body 2 are not limited to those of the above-described embodiment. Moreover, although the frame 2 attached to the building frame T has a semi-external structure, it may be an external structure. In addition to the resin sash, the present invention can be applied to, for example, an aluminum sash, a composite sash in which aluminum and a synthetic resin are combined, and the like. The drain hole 24 may be a notch. In the internal drainage component of the embodiment, the main body and the cover member are formed separately, but may be formed integrally.

It is a schematic outdoor front view showing an embodiment in which the present invention is applied to a resin sliding sash. It is a figure which shows the attachment structure of an internal drainage component. It is an AA line expanded sectional view of FIG. It is a BB line expanded sectional view of Drawing 1. It is a figure which shows an internal drainage part, (a) is a front view, (b) is a side view. It is a figure which shows the cover member of an internal drainage component, (a) is a front view, (b) is a side view. It is a figure which shows the main body of an internal drainage component, (a) is a top view, (b) is a front view, (c) is CC sectional view taken on the line of (b). It is a figure which shows an external drainage part, (a) is a front view, (b) is a rear view, (c) is a partial cross section top view, (d) is the DD sectional view taken on the line of (b).

Explanation of symbols

1 Resin sash (Drawing sash)
2 Frame 2a Upper frame 2b Lower frame 2c Vertical frame 3a, 3b Shoji 4a, 4b Rail 15 Internal drainage part 20 Valve 30 Drainage part f Clearance

Claims (1)

A sliding sash having a frame body composed of an upper frame, a lower frame, and left and right vertical frames, and a shoji that is openable and closable within the frame body, and is formed on the indoor upper surface portion between the inner and outer rails of the lower frame. A drain outlet communicating with the outside is provided, and an inner drainage part having a valve is attached to the drainage outlet. The inner drainage part is provided with a drainage part at a portion facing the indoor surface of the outer rail, and the drainage part and the outer rail are connected to each other. A sliding sash characterized by providing a minute gap between the interior surface.

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