JP5235131B2 - Lower frame flat sash - Google Patents

Description

  The present invention relates to a lower frame flat sash in which a sill surface of a lower frame constituting a frame body is formed in a substantially flat shape, and in particular, a metal member is provided in a region between inner and outer rails of the lower frame to further increase the upper surface of the lower frame. The present invention relates to a flat bottom sash.

Conventionally, there has been known a lower frame flat sash in which inner and outer shojis are placed in a sliding manner in a frame provided in a building opening, and the sill surface of the lower frame including the upper ends of the inner and outer rails guiding the inner and outer shojis is formed in a substantially flat shape. ing. The lower frame flat sash is provided with a cover material between the inner and outer rails for guiding the inner and outer shojis and between the inner rail and the lower frame indoor end in order to make the sill surface as flat as possible. As such a lower frame flat sash, for example, there is one described in Patent Document 1.
JP 2004-293221 A

  On the upper surface of the lower frame, the cover member provided between the inner rail and the lower frame indoor end is formed to have an upper surface close to the upper end position of the inner rail. For this reason, a space part arises between the upper surface of a lower frame main body, and a cover material. Water that has flowed to the upper surface of the cover material is guided to this space portion, and further, the water is drained outside through the hollow interior of the lower frame. For this reason, dust and dust may enter the lower part of the cover material, and it is necessary to perform cleaning appropriately. However, in the conventional lower frame flat sash, it is not easy to remove the cover material, and therefore it is difficult to clean the cover material.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a lower frame flat sash in which a member provided between an inner rail of a lower frame and an indoor side end portion can be easily detached and cleaned. And

In order to solve the above-mentioned problems, the lower frame flat sash according to the present invention accommodates the inner and outer shojis in a sliding manner in the frame provided in the building opening, and the lower frame constituting the frame guides the inner and outer shojis In the lower frame flat sash in which the sill surface including the upper ends of the inner and outer rails is formed in a substantially flat shape,
The lower frame has an indoor rising piece at substantially the same height as the inner and outer rails at an indoor side end portion, and an indoor upper surface material is provided so as to pass between the indoor rising piece and the inner rail. Is provided over the substantially entire length between the left and right vertical frames on the upper surface of the lower frame, and includes a locking piece that can be elastically locked in the expected direction of the lower frame, and the locking piece is attached to the inner rail. The indoor upper surface material is fixed to the lower frame by being locked against, and end caps are provided at both ends of the indoor upper surface material.
The locking piece is formed on the end cap .

  Further, in the lower frame flat sash according to the present invention, the inner rail is formed with a projecting piece for supporting the outdoor end portion of the indoor upper surface material on the indoor side surface, and the locking piece of the indoor upper surface material is the projecting of the inner rail. It is configured such that it is fixed and fixed to the piece.

  Still further, in the lower frame flat sash according to the present invention, the end cap has an operation portion that protrudes upward from the locking piece, and the operation portion and the locking piece are the main body of the end cap. It is characterized by being elastically supported with respect to the part.

  And the lower-frame flat sash which concerns on this invention is comprised by the end part cap which has the said locking piece being formed with the synthetic resin.

  In the lower frame flat sash according to the present invention, a corner block is provided at one vertical frame side end on the upper surface between the indoor rising piece of the lower frame and the inner rail, and the other vertical frame side end. A door stop stopper that comes into contact with the inner shingles is provided, and the indoor upper surface material is provided between the corner block and the door stop stopper.

  Furthermore, the lower frame flat sash according to the present invention is characterized in that the indoor upper surface material is divided in the longitudinal direction at the summing portion of the internal and external shoji.

  According to the lower frame flat sash according to the present invention, the indoor upper surface material is provided so as to pass between the indoor rising piece of the lower frame and the inner rail, and the indoor upper surface material is substantially the entire length between the left and right vertical frames on the lower frame upper surface. Provided with a locking piece that can be elastically locked in the expected direction of the lower frame, and the locking piece is locked to the inner rail to fix the indoor upper surface material to the lower frame. The indoor upper surface material can be easily detached from the lower frame, and the cleaning between the inner rail on the upper surface of the lower frame and the indoor rising piece can be facilitated.

  Further, according to the lower frame flat sash according to the present invention, the inner rail is formed with a protruding piece for supporting the outdoor end portion of the indoor upper surface material on the indoor side surface, and the locking piece of the indoor upper surface material is formed on the protruding piece of the inner rail. On the other hand, by being elastically locked and fixed, the locking piece can be easily locked to the lower frame, and can be more easily attached to and detached from the lower frame.

  Furthermore, according to the lower frame flat sash according to the present invention, the end caps are provided at both ends of the indoor upper surface material, and the locking member is formed on the end cap, whereby the indoor upper surface material body is simple. Manufacturing as a shape can be facilitated.

  Furthermore, according to the lower frame flat sash according to the present invention, the end cap has an operation portion that is integral with the locking piece and protrudes upward, and the operation portion and the locking piece are located on the main body of the end cap. On the other hand, by being elastically supported, it is possible to easily perform locking and releasing operation from above the indoor upper surface material, and it is possible to more easily attach and detach the lower frame.

  According to the lower frame flat sash according to the present invention, the end cap having the locking piece is formed of synthetic resin, so that the elastic deformation of the locking piece is increased and the elastic locking is easily performed. Can be made.

  Further, according to the lower frame flat sash according to the present invention, the upper surface between the indoor rising piece of the lower frame and the inner rail is provided with a corner block at one vertical frame side end and the other vertical frame side end. A door stop stopper that comes into contact with the inner impingement is provided at the section, and the indoor upper surface material is provided between the corner block and the door stop stopper, so that the end of the indoor upper surface material protrudes from the inner peripheral surface of the vertical frame having irregularities. Since it does not hit, the vertical frame does not hinder the attachment / detachment, and the attachment / detachment can be performed easily.

  Furthermore, according to the lower frame flat sash according to the present invention, the indoor upper surface material is divided in the longitudinal direction at the summing portion of the internal and external shoji, so that the indoor upper surface material can be easily removed without removing the internal and external shoji from the frame. Can be detached from the lower frame.

  Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal sectional view of the lower frame flat sash according to the present embodiment, and FIG. 2 is a transverse sectional view of the lower frame flat sash. As shown in each of these drawings, the lower frame flat sash of the present embodiment is configured such that the inner shoji 2 and the outer shoji 3 are housed in a frame 1 provided in the building opening, and the outer shoji 3 Further, a screen door 4 is housed in the outdoor side so that it can run freely.

  The frame 1 is configured by an upper frame 10, a lower frame 11, and left and right vertical frames 12, 12 that are rectangularly framed. Moreover, the frame 1 covers the indoor exposed surface of the metal frame 1a with the resin frame 1b, so that the heat insulation and the design are improved by preventing the metal frame 1a from being directly exposed to the indoor side.

  Looking at each frame member constituting the frame body 1, the upper frame 10 includes a metal upper frame 10 a and a resin upper frame 10 b. On the inner peripheral surface of the upper frame 10, there are formed an inner guide portion 10 c for guiding the inner shoji 2 in the longitudinal direction of the upper frame 10 and an outer guide portion 10 d for guiding the outer shoji 3 in the longitudinal direction of the upper frame 10. ing. The inner guide portion 10c is constituted by a resin upper frame 10b, and the outer guide portion 10d is constituted by a metal upper frame 10a and a resin upper frame 10b. The lower frame 11 includes a metal lower frame 20 and a resin lower frame 25. The detailed structure of the lower frame 11 will be described later.

  The vertical frame 12 includes a metal vertical frame 12a and a resin vertical frame 12b. The vertical frame 12 on the side where the inner impingement element 2 is disposed has an inner peripheral protruding piece 12 c that protrudes toward the inner peripheral side at a position facing the outer peripheral surface of the inner impingement element 2, and is provided on the inner impeller 2. Airtightness between the frame body 1 and the inner limb 2 is ensured by the airtight material 2a contacting. In addition, the vertical frame 12 on the side where the external shoji 3 is arranged has an inner peripheral protruding piece 12 c that protrudes toward the inner peripheral side at a position facing the outer peripheral surface of the external obstacle 3. Airtightness between the frame 1 and the outer panel 3 is ensured by contacting the provided airtight material 3a.

  The inner and outer shojis 2 and 3 are each configured by housing a panel body 6 made of a glass plate in a casing 5 that is assembled in a square shape, and a lower end of the door to make them run freely. 7 is provided. The casing 5 is provided with a resin material so as to cover the exposed surface on the indoor side of the metal material in the same manner as the frame 1, and is intended to improve heat insulation and design.

  Next, the configuration of the lower frame 11 will be described in detail. 3 is an enlarged view of the vicinity of the lower frame 11 in FIG. 1, and FIG. 4 is an exploded cross-sectional view of the lower frame 11. As shown in FIG. 3, the lower frame 11 is configured by providing a resin lower frame 25 so as to cover a room-side exposed surface of the metal lower frame 20. As shown in FIG. 4, the metal lower frame 20 is formed in a hollow cross section, and a screen door rail 22, an outer rail 21, and an indoor rising piece 23 are formed in a protruding shape on the upper surface in order from the outdoor side. The screen door rail 22, the outer rail 21, and the indoor rising piece 23 are all formed so that their upper end positions are substantially the same height. The resin lower frame 25 includes an upper surface covering member 26 provided so as to cover the upper surface of the metal lower frame 20 and an indoor surface covering member 27 provided so as to cover the indoor side surface of the metal lower frame 20.

  As shown in FIG. 4, a large concave region is formed between the outer rail 21 and the indoor rising piece 23 on the upper surface of the metal lower frame 20, and the upper surface covering member 26 constituting the resin lower frame 25 in this region. Is installed. The upper surface covering member 26 has a substantially L-shaped cross section with an upper surface covering portion 26 a covering the upper surface of the metal lower frame 20 and a rising covering portion 26 b covering the outdoor surface of the indoor rising piece 23 of the metal lower frame 20. It is formed into a shape.

  A resin frame engaging piece 24 is formed in a protruding shape on the upper surface on the indoor side of the outer rail 21 of the metal lower frame 20, and the upper end covering member 26 engages with the resin frame engaging piece 24 at the outdoor end. To do. Further, an engaging portion 23a is formed near the upper end of the indoor rising piece 23, and the rising covering portion 26b of the upper surface covering member 26 is engaged and fixed.

  The inner rail member 30 is placed on the upper surface of the upper surface covering member 26. The inner rail member 30 is made of a metal material, and includes a base 31 placed on the upper surface covering member 26 and an inner rail 32 formed so as to protrude upward from the base 31. The upper end position of the inner rail 32 is set to be substantially the same as the upper end position of the outer rail 21 or the indoor rising piece 23.

  An inner rail engaging portion 26c for engaging the base portion 31 of the inner rail member 30 is formed on the upper surface covering portion 26a of the upper surface covering member 26, and the base portion 31 of the inner rail member 30 is connected to the inner rail engaging portion 26c. While being engaged, it is fixed to the upper surface covering member 26 by screwing. The screw 28 used for fixing passes through the upper surface of the metal lower frame 20 and reaches the hollow interior, thereby fixing the inner rail member 30 to the metal lower frame 20 as well.

  Thus, the inner rail 32 is provided on the inner rail member 30 formed of a metal material separate from the metal lower frame 20, and the inner rail member 30 is placed and fixed on the upper surface covering member 26 made of a resin material. Therefore, the inner rail 32 is thermally insulated from the metal lower frame 20. Therefore, while ensuring the strength of the inner rail 32 that supports the load of the inner impeller 2, it is possible to prevent the heat insulation from being deteriorated due to the exposure to the indoor side.

  An intermediate upper surface member 34 is provided in the region between the inner rail 32 and the outer rail 21 over substantially the entire length in the longitudinal direction. The intermediate upper surface member 34 is formed of a metal material, and the upper surface 34 a extends from the vicinity of the outdoor surface of the inner shuffler 2 to the vicinity of the door 7 of the outer obstacle 3, and the upper end of the inner rail 32, the outer rail 21, and the indoor rising piece 23. It is formed to be approximately the same height as the position.

  In order to fix the intermediate upper surface material 34 to the lower frame 11, an upper surface material attachment component 35 is provided on the upper surface of the outdoor end portion of the upper surface covering member 26. The upper surface member attachment component 35 is formed as a small piece component, and a plurality of the upper surface member attachment components 35 are provided at predetermined intervals along the longitudinal direction of the lower frame 11. The intermediate upper surface member 34 is fixed to the lower frame 11 at a plurality of locations along the longitudinal direction by being engaged with each upper surface member attachment component 35.

  The indoor surface covering member 27 provided so as to cover the indoor side surface of the metal lower frame 20 includes an indoor surface covering portion 27a that covers the indoor side surface of the metal lower frame 20, and an angle configuration that extends from the upper end toward the indoor side. The portion 27b is integrally formed to have a substantially L-shaped cross section. The angle component 27b is in contact with and screwed to the upper surface of a floor material (not shown) provided on the indoor side of the frame 1, and the angle cover member 14 is further provided on the upper surface.

  An indoor upper surface material 33 is provided in a region between the inner rail 32 and the indoor rising piece 23. The indoor upper surface member 33 is made of a metal material and is formed in a substantially thin plate shape. The outdoor end portion of the indoor upper surface member 33 is supported by a protruding piece 32 a formed in the vicinity of the upper end of the inner rail 32, while the indoor end portion of the indoor upper surface member 33 is a rising covering portion 26 b that constitutes the upper surface covering member 26. Engage with the upper end of the.

  And the indoor upper surface material 33 is made not to contact the rising piece 23 which the rising coating | coated part 26b coat | covers. As a result, the indoor upper surface member 33 is thermally insulated from the metal lower frame 20. Further, since the indoor upper surface member 33 is supported and attached to the upper end portion of the rising covering portion 26b and the protruding piece 32a near the upper end of the inner rail 32, the upper surface 33a is the upper end of the inner rail 32 and the indoor rising piece 23. It is almost the same height as the position.

  Thus, the indoor upper surface material 33 made of a metal material is provided between the inner rail 32 and the indoor rising piece 23, and the indoor upper surface material 33 is fixed so as to be thermally insulated from the metal lower frame 20. Heat insulation can be secured while increasing the strength of the upper surface. Moreover, since the inner rail member 30 to which the indoor upper surface member 33 is attached is also thermally insulated from the metal lower frame 20 as described above, a lower frame flat sash with higher heat insulation can be obtained.

  An outdoor upper surface member 36 is attached between the outer rail 21 and the screen door rail 22 of the metal lower frame 20. The outdoor upper surface member 36 is engaged with and fixed to the upper surface of the metal lower frame 20 and the indoor surface of the screen door rail 22, and the upper surface 36 a has substantially the same height as the upper end positions of the inner rail 32 and the outer rail 21. At the same time, it is formed so as to extend from the vicinity of the indoor surface of the screen door 4 to the vicinity of the outdoor surface of the shoji 3.

  As described above, the upper surface 36a of the outdoor upper surface material 36, the upper surface 34a of the intermediate upper surface material 34, and the upper surface 33a of the indoor upper surface material 33 are all screen door rails 22, outer rails 21, inner rails 32, and indoor rising pieces. 23 has substantially the same height as the upper end position of the frame 23, and these heights are substantially the same as the floor material on the indoor side of the frame 1. As a result, the upper surface of the lower frame 11 constitutes a substantially flat sill surface 13 as a whole throughout the room.

  The inner and outer shojis 2 and 3 have their outdoor surfaces hanging down below the sill surface 13, and airtight members 2 a and 3 a are provided at the hanging portions, respectively. The airtight material 2a of the inner shroud 2 abuts against the outdoor surface of the inner rail 32, and the airtight material 3a of the outer shroud 3 abuts against the outdoor surface of the outer rail 21, respectively. Airtightness is ensured. In addition, an airtight material 34 c is provided on the indoor upper surface of the intermediate upper surface material 34, and this airtight material 34 c abuts against the outdoor surface of the inner shroud 2, thereby further improving the airtightness.

  In FIG. 5, the cross-sectional view of the frame 1 is shown. As shown in this figure, a central airtight block 37 is provided at the center in the region between the inner rail 32 and the outer rail 21 of the lower frame 11. The central airtight block 37 is provided at a position that becomes a summing portion in a state in which the inner impingement child 2 and the outer imperial child 3 are closed, and a plurality of fins are formed on the upper surface to ensure airtightness in the summing portion.

  In the region between the inner rail 32 and the outer rail 21 of the lower frame 11 and on the left and right of the central airtight block 37, the above-described intermediate upper surface material 34 is provided. In this manner, the intermediate upper surface material 34 is held and fixed by the small-piece-like upper surface material mounting components 35 provided at predetermined intervals in the longitudinal direction. And the upper surface of the metal lower frame 20 face each other with a space. For this reason, even if water permeates into the region between the inner rail 32 and the intermediate upper surface member 34, water smoothly flows from the space between the intermediate upper surface member 34 and the upper surface of the metal lower frame 20 to the outdoor side of the intermediate upper surface member 34. It is possible to drain the water efficiently.

  A drain hole is formed in the bottom surface in the region between the intermediate upper surface member 34 and the outer rail 21 on the upper surface of the metal lower frame 20, and the water that has entered the indoor side and the outdoor side of the intermediate upper surface member 34 is this. After being led from the drainage hole to the hollow inside of the metal lower frame 20, it is drained to the outdoor side.

  FIG. 5 is drawn in the same direction as FIG. 2 and represents the plane of the lower frame 11. Therefore, the external shoji 3 is arranged on the left side in the figure, and the internal shoji 2 is arranged on the right side in the figure. Since the intermediate upper surface member 34 on the side where the external shoji 3 is disposed is exposed to the indoor side, it is necessary to be thermally insulated from the metal lower frame 20 in order to ensure heat insulation. For this reason, the upper surface material mounting part 35 on the side where the left hand-operated shoji 3 is arranged is formed of a resin material. Thereby, since the intermediate | middle upper surface material 34 is thermally insulated with the metal lower frame 20, heat insulation can be improved.

  On the other hand, for the side on which the inner shoji 2 on the right side in the drawing is arranged, the intermediate upper member 34 is not exposed to the indoor side when the shoji is closed, so the upper member attaching part 35 may be a metal material. However, the upper surface material attachment component 35 formed of a resin material may also be used here.

  The indoor upper surface material 33 provided between the inner rail 32 of the lower frame 11 and the indoor rising piece 23 is provided so as to extend over substantially the entire length of the lower frame 11 in the longitudinal direction. However, a door stopper 40 that abuts when sliding the inner shoji 2 at the position adjacent to the vertical frame 12 on the side where the outer shoji 3 is arranged in the lower frame 11 and that defines the slide end portion. A corner block 41 is provided at a position adjacent to the vertical frame 12 on the side of the lower frame 11 where the inner shoji 2 is disposed so as to block the concave portion formed by the inner peripheral protruding piece 12c of the vertical frame 12. The indoor upper surface member 33 is provided so as to cross between the door stop stopper 40 and the corner block 41.

  The indoor upper surface member 33 is divided in the longitudinal direction at the center portion where the inner and outer shojis 2 and 3 are brought together. End caps 38 are respectively provided at both ends of the left and right indoor upper surface members 33. Since the indoor upper surface material 33 is divided at the center of the lower frame 11, the end caps 38 are arranged adjacent to each other. Further, at both ends of the lower frame 11, the positions adjacent to the vertical frame 12 are blocked by the door stopper 40 and the corner block 41 as described above, and the end cap 38 is slightly separated from the vertical frame 12. Placed in position. Thereby, it is possible to prevent the vertical frame 12 having irregularities on the inner peripheral surface from preventing the end cap 38 from detaching the indoor upper surface material 33.

  FIG. 6 shows a perspective view of the end cap 38. As shown in this figure, the end cap 38 has a main body portion 38a disposed adjacent to the indoor upper surface material 33 and an insertion portion 38b inserted into the indoor upper surface material 33 from the end surface. . In addition, a semicircular cutout is formed in the main body portion 38a so as to face the outdoor side, and a locking piece 38c and an operation portion 38d are connected to the main body portion 38a via the elastic arm portion 38e in the cutout. It is integrally formed.

  The locking piece 38c is formed in a protruding shape toward the outdoor side. Further, the distal end portion of the locking piece 38c protrudes outward from the outdoor end portion of the main body portion 38a. The elastic arm portion 38e that supports the locking piece 38c is formed in a narrow shape that suspends the locking piece 38c from both sides of the main body portion 38a, and can be elastically deformed in the indoor and outdoor directions. Since the end cap 38 is made of synthetic resin, the elastic arm portion 38e can be greatly elastically deformed in the indoor / outdoor direction.

  The operation part 38d protrudes upward from the upper surface of the base part of the locking piece 38c, and is formed in an arc shape along the notch of the main body part 38a. By operating the operation portion 38d so as to be pulled to the indoor side, the elastic arm portion 38e is elastically deformed to the indoor side, and accordingly, the locking piece 38c is also moved to the indoor side. When the hand is released from the operation portion 38d, the elastic arm portion 38e is moved to the outdoor side by the elastic force, and the locking piece 38c is also returned to the original position.

  The end cap 38 is fixed and integrated with the indoor upper surface material 33 by inserting the insertion portion 38 b from the end surface of the indoor upper surface material 33. When attaching the indoor upper surface material 33 to the lower frame 11, the end cap 38 is integrated with the indoor upper surface material 33 in advance, and the indoor upper surface material 33 has a locking piece 38c. Then, the elastic arm portion 38e is bent by pulling the operation portion 38d provided on the end cap 38 to the indoor side, and the locking piece 38c is moved to the indoor side. 11 is attached at a predetermined position. Subsequently, the operating portion 38d is returned to the original position to return the locking piece 38c to its original state, whereby the locking piece 38c is elastically locked to the protruding piece 32a of the inner rail 32. Thereby, the indoor upper surface member 33 is fixed to the lower frame 11.

  Conversely, in a state where the indoor upper surface member 33 is fixed to the lower frame 11, the elastic locking state of the locking piece 38 c with respect to the protruding piece 32 a is released by operating the operation portion 38 d to the indoor side. In this state, the indoor upper surface member 33 can be removed from the lower frame 11. That is, the indoor upper surface member 33 can be easily removed by a simple operation.

  FIG. 7 shows an enlarged vertical cross-sectional view at the attachment position of the end cap 38. As shown in this figure, the insertion portion 38b of the end cap 38 has a cross-sectional shape that substantially matches the shape of the lower surface side of the indoor upper surface material 33 and can be inserted. Further, the locking piece 38c of the end cap 38 protrudes outward from the outdoor end portion of the main body portion 38a, and is elastically projected outward in the indoor direction, which is the expected direction of the lower frame 11, with respect to the protruding piece 32a of the inner rail 32. It is in a state where it is locked.

  As described above, the indoor upper surface material 33 is provided with the end cap 38 having the locking piece 38c, and the locking piece 38c can be elastically locked to the lower frame 11 in the indoor and outdoor directions. 33 can be easily attached to and detached from the lower frame 11, and the space between the inner rail 32 and the indoor rising piece 23 on the upper surface of the lower frame 11 can be easily cleaned.

  Further, the indoor upper surface member 33 is divided in the longitudinal direction at the summing portion of the inner and outer children 2 and 3, and end caps 38 having locking pieces 38c are provided at both ends of the left and right indoor upper surface members 33, respectively. Therefore, the indoor upper surface material 33 can be attached and detached without removing the inner shoji 2 and the outer shoji 3 from the frame 1.

  Although the embodiment of the present invention has been described above, the application of the present invention is not limited to this embodiment, and can be applied in various ways within the scope of its technical idea. For example, in this embodiment, the locking piece 38c provided on the indoor upper surface material 33 is formed on the end cap 38, but the locking piece 38c may be provided on the indoor upper surface material 33 main body.

  Further, in the present embodiment, a locking piece 38c that can be elastically locked with respect to the lower frame 11 is provided as a configuration for fixing the indoor upper surface material 33 to the lower frame 11. Any elastic member such as a spring that can be expanded and contracted in the indoor / outdoor direction is provided on the indoor upper surface member 33 and is elastically engaged with the lower frame 11. You may comprise as follows.

It is a longitudinal cross-sectional view of the lower frame flat sash in this embodiment. It is a cross-sectional view of the lower frame flat sash in this embodiment. FIG. 2 is an enlarged view of the vicinity of the lower frame in FIG. 1. It is an exploded sectional view of a lower frame. It is a cross-sectional view of a frame. It is a perspective view of an end cap. It is an enlarged vertical sectional view in the attachment position of an end cap.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame 2 Endoscope 3 External shoji 4 Screen door 5 Housing 6 Panel body 7 Door car 10 Upper frame 11 Lower frame 12 Vertical frame 13 Sill surface 20 Metal lower frame 21 Outer rail 22 Screen door rail 23 Indoor rising piece 24 Resin frame engagement Piece 25 Resin lower frame 26 Upper surface covering member 27 Indoor surface covering member 29 Recessed portion 30 Inner rail member 31 Base portion 32 Inner rail 33 Indoor upper surface material 34 Intermediate upper surface material 35 Upper surface material attaching component 38 End cap 38a Main body portion 38b Inserting portion 38c Stop piece 38d Operation part 40 Door block 41 Corner block

Claims (6)

The inner and outer shojis are housed in a frame body provided in the opening of the building in a sliding manner, and the lower frame constituting the frame body has a sill surface including the upper ends of the inner and outer rails guiding the inner and outer shojis formed in a substantially flat shape. In the frame flat sash,
The lower frame has an indoor rising piece at substantially the same height as the inner and outer rails at an indoor side end portion, and an indoor upper surface material is provided so as to pass between the indoor rising piece and the inner rail. Is provided over the substantially entire length between the left and right vertical frames on the upper surface of the lower frame, and includes a locking piece that can be elastically locked in the expected direction of the lower frame, and the locking piece is attached to the inner rail. The indoor upper surface material is fixed to the lower frame by being locked against, and end caps are provided at both ends of the indoor upper surface material.
The lower frame flat sash is characterized in that the locking piece is formed on the end cap . The inner rail has a protruding piece for supporting an outdoor end of the indoor upper surface material on the indoor side surface, and the locking piece of the indoor upper surface material is elastically locked to the protruding piece of the inner rail. The lower frame flat sash of Claim 1 characterized by these. The end cap has an operating portion that is integral with the locking piece and protrudes upward, and the operating portion and the locking piece are elastically supported with respect to the main body of the end cap. Characteristic claims
The lower frame flat sash of 1 or 2 . The bottom cap flat sash according to any one of claims 1 to 3, wherein the end cap having the locking piece is made of a synthetic resin. On the upper surface between the indoor rising piece of the lower frame and the inner rail, a corner block is provided at one end of the vertical frame, and a door stopper is provided at the other end of the vertical frame. is, the indoor upper surface material lower frame flat sash according to any one of claims 1 to 4, characterized in that provided between the corner block and doorstop stopper. The lower frame flat sash according to any one of claims 1 to 5 , wherein the indoor upper surface material is divided in a longitudinal direction at a summing portion of the inner and outer shoji.

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