JP2005120689A - Opening device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening device capable of securing water tightness of the lower part of but seem frames of a inner screen to smoothly drain water intruded in the frame of the inner screen. <P>SOLUTION: An external screen 3 is provided in a fixed condition or to be slidably openable/closable at both sides in the frame 2 formed of the upper frame 2a, lower frame 2b, and the right and left vertical frames 2c, and a pair of right and left internal screens 4 are provided to be slidably openable/closable at the central part in the frame 2, the upper face 12 of the lower frame 2b is formed to be substantially flat face, a hanging piece 13 is formed in the outdoor side lower part of the inner screen 4, a guide groove 15 guiding the hanging piece 13 is formed at the upper face of the lower frame 2b, a lateral air tight material 27 sealing the gap of the hanging piece 13 is provided in the guide groove 15. A butt seam frame air tight material 28 sealing the gap of the butt seam frame 5d is provided in the indoor side of the butt seam frame 5d forming the butt section of the inner screen 4. The butt seam frame lower part air tight material 29 connecting the butt seam frame vertical air tight material 28 and the lateral air tight material 27 is provided in the lower part between the butt seam frames 5d. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a center-drawing type or a four-sheet-type opening device that fits both sleeves, and in particular, has an outer panel on both sides and an inner panel in the center, and the upper surface of the lower frame is substantially flat without barriers. It is related with the opening part apparatus which made the surface and improved the water stop structure of a gassho ridge.

  As the opening device, a frame composed of an upper frame, a lower frame, and left and right vertical frames, a palpator that can be fitted to both sides of the frame or slidably opened and closed, and a center portion of the frame And a pair of right and left inner doors that are slidably opened and closed (for example, a center-drawing window with two sleeves and a four-story sliding window) are known (for example, JP-A-6-146740). See the official gazette). In this opening device, development of making the upper surface of the lower frame into a substantially flat surface and making it barrier-free is underway.

  In addition, in sliding windows in which movable shojis are slidably opened and closed on both the outdoor side and the indoor side in the frame, the upper surface of the lower frame is formed as a substantially flat surface and is barrier-free. (See, for example, JP-A-2002-194963). It is possible to apply the water stop structure described in this publication to the opening device.

JP-A-6-146740 JP 2002-194963 A

  However, when the water stop structure is applied to the opening device, a hanging piece is provided in the lower part on the indoor side of the inner shoji, and a guide groove for guiding the hanging piece is provided on the upper surface of the lower frame. Since a horizontal airtight material that seals the gap between the pieces is provided, the traveling surface of the inner card on the upper surface of the lower frame becomes the outdoor side, and sand and dust are easily attached to the traveling surface, and the traveling surface is easily damaged. In addition, a vertical airtight material (referred to as a gastrophobic vertical airtight material) is provided on the outside or indoor side of the gastropod that is the butt of the inner shoji. Is not on the same side (for example, when the hanging piece is on the outdoor side and the gas palm vertical airtight material is on the indoor side, and when the hanging piece is on the indoor side and the gas palm vertical airtight material is on the outdoor side), It is difficult to connect (connect) the gas-tight lines of the gas palm vertical air-tight material and the horizontal air-tight material, and it is difficult to ensure water-stopping. When both the hanging piece and the gas palm sealing material are arranged on the indoor side, there is no problem with the airtight line and drainage, but the running surface is easily damaged as described above. In order to solve such a problem, it is conceivable that a hanging piece is provided at the lower part of the inner side of the inner shoji, and a gastrophobic longitudinal airtight material is arranged on the outer side of the gastrophobic cage. It is difficult to drain water such as rainwater that entered the basin outside.

  The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide an opening device capable of ensuring the water tightness of the lower part between the palms of the inner shoji. Moreover, the objective of this invention is providing the opening part apparatus which can drain | emit easily the water which entered in the cage | basket of the inner shoji to the outdoors.

  Of the present invention, the invention of claim 1 includes a frame composed of an upper frame, a lower frame, and left and right vertical frames, a shroud that can be fitted to both sides of the frame, or can be freely opened and closed. A pair of left and right inner slidable slides that are slidably opened and closed at the center of the lower frame, the upper surface of the lower frame is formed in a substantially flat surface, and a hanging piece is provided on the lower outer side of the inner frame, A guide groove for guiding the drooping piece is formed on the upper surface, and a horizontal airtight material is provided in the guide groove to seal between the drooping piece. It is characterized in that a gas palm vertical air-tight material for sealing the gap is provided, and a gas palm vertical air-tight material for connecting the gas palm vertical air-tight material and the horizontal air-tight material is provided in the lower portion between the gas palms.

  The invention of claim 2 is a frame composed of an upper frame, a lower frame, and left and right vertical frames, an outer frame provided on both sides of the frame so as to be fitted or slidably opened and closed, and slid at the center of the frame A pair of left and right inner limbs that can be freely opened and closed, the upper surface of the lower frame is formed in a substantially flat surface, a hanging piece is provided at the lower outside of the inner edge of the inner frame, and the hanging piece is formed on the upper surface of the lower frame. The guide groove is formed, and a horizontal airtight material is provided in the guide groove so as to seal the gap between the hanging pieces, and the gap between the claws is sealed inside the gap between the claws that are the abutment portion of the inner limb. A gas-tight vertical airtight material is provided at the lower part of the gas palm and a gas-tight lower gas-tight material that connects the gas-tight vertical air-tight material and the horizontal air-tight material is provided. It is characterized by having a drain hole for draining the water that has entered.

  According to invention of Claim 1, the frame which consists of an upper frame, a lower frame, and a right and left vertical frame, the external obstacle provided in the both sides in this frame so that it can be killed or slidably opened and closed, and the center part in a frame A pair of left and right inner limbs that are slidably openable and slidably formed on the upper frame, the upper surface of the lower frame is formed in a substantially flat surface, a hanging piece is provided at the lower outer side of the inner frame, and the upper surface of the lower frame is A guide groove for guiding the hanging piece is formed, and a horizontal airtight material is provided in the guiding groove to seal the gap between the hanging piece. A gas-tight vertical airtight material is provided, and a gas-tight vertical airtight material connecting the vertical gas-tight material and the horizontal airtight material is provided at the lower part of the gastropod. Sex can be secured.

  According to invention of Claim 2, the frame which consists of an upper frame, a lower frame, and a right and left vertical frame, the external obstacle provided in the both sides in this frame so that it can be killed or slidably opened and closed, and the center part in a frame A pair of left and right inner limbs that are slidably openable and slidably formed on the upper frame, the upper surface of the lower frame is formed in a substantially flat surface, a hanging piece is provided at the lower outer side of the inner frame, and the upper surface of the lower frame is A guide groove for guiding the hanging piece is formed, and a horizontal airtight material is provided in the guiding groove to seal the gap between the hanging piece. A gas-tight vertical air-tight material is provided at the lower part of the gas palm and a gas-tight lower gas-tight material connecting the gas-tight vertical air-tight material and the horizontal air-tight material is provided at the lower part of the gas palm. Since the drainage hole for draining the water that has entered the cage is provided, in addition to the same effect as the first aspect, It is possible to easily drain the water containing the outdoor in.

  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 front view of an indoor side showing an embodiment in which the present invention is applied to a center drawing window with both sleeves fitted, FIG. 2 is an enlarged cross-sectional view of FIG. 1, FIG. 3 is an enlarged perspective view of a main part, and FIG. FIG. 5 is a perspective view of one of the palms, FIG. 5 is a perspective view of the other palms, and FIG.

  In these drawings, reference numeral 1 denotes an opening device, which is a double-sleeved, center-drawing type lower frame flat sash (also referred to as a non-rail sash), and this sash 1 is an upper frame 2a attached to an outdoor opening of a building. A frame 2 composed of a lower frame 2b and left and right vertical frames 2c, 2c, and an external shoji 3 which is a fixed shoji provided on both sides of the outdoor side (both sleeves) in the frame 2 2 is provided with a pair of left and right inner shojis 4 which are movable shojis which are slidably opened and closed by being brought into contact with the central portion on the indoor side. The upper frame 2a, the lower frame 2b, and the left and right vertical frames 2c and 2c are made of, for example, an aluminum extruded profile.

  The inner shoji 4 is formed by, for example, mounting a glass panel 6 in a cage 5 consisting of an upper eave 5a, a lower eave 5b made of an aluminum extruded shape, and left and right vertical eaves (summing and eaves) 5c, 5d. . The external shoji 3 includes a summing stand 7c spanned between and fixed between the upper frame 2a and the lower frame 2b in correspondence with the summoning cage 5c of the inner shoji 4 when closed (fully closed). A glass panel 6 is mounted in a frame made up of a vertical frame 2c and an upper beam 7a and a lower beam 7b. The upper portion of the upper rail 7a is engaged with an upper groove portion 8 formed on the lower surface of the upper frame 2a, and the lower rail 7b is engaged with an outdoor groove portion 18 described later formed on the upper surface of the lower frame 2b. . On the lower surface of the upper frame 2a, an upper rail (not shown) for guiding the upper portion of the inner impeller 4 is provided. The shojis 3 and 4 in the illustrated example have intermediate horizontal bars 5e and 7e, but may not have intermediate horizontal bars.

  A crescent receiver 9 a is provided on the summing stand 7 c of the external shoji 3, and a summing bowl (also referred to as a “Sainai spear”) 5 c of the inner shoji 4 is engaged with the crescent receiver 9 a when the inner shroud 4 is closed. A crescent lock 9 is provided for locking. Smoke-returning portions 10a and 10b that are engaged with each other when closed are provided between the summing bowl 5c of the inner shoji 4 and the summing section 7c of the outer shoji 3, and the outdoor surface of the summing bowl 5c. For example, a vertical airtight material (also referred to as a summing vertical airtight material) 11 made of, for example, a soft resin is provided in the vertical direction so as to be in contact with the interior surface of the summing method 7c and seal the space therebetween.

  A door cart (not shown) is attached to the lower collar 5b of the inner shroud 4, and the inner shroud 4 is supported on the upper surface 12 of the lower frame 2b through the door wheel so as to be slidable. The door carriage is provided with a not-shown building adjustment mechanism for adjusting the height of the shoji 4. The upper surface 12 of the lower frame 2b is formed in a substantially flat surface, and a deck portion such as a draining grating or a balcony (not shown) arranged outside the room and a floor portion on the indoor side are substantially horizontal with the upper surface 12 of the lower frame 2b. It is formed and has a barrier-free structure. A drainage groove is provided under the grating. The traveling surface 12a on which the door wheel on the upper surface 12 of the lower frame 2b travels is formed in a slightly convex shape to guide the door wheel.

  A hanging piece 13 is provided in the lower part of the inner side of the inner shoji 3 over the entire length in the longitudinal direction. In the case of the embodiment, the drooping piece 13 is formed in the lower part of the lower part of the outdoor side of the lower collar 2b, and the summing bowl 5d which is the left and right vertical bowls of the inner shoji 4 and the lowering of the summing bowl 5d. A hanging piece 13a that is continuous with the hanging piece 13 is also formed on the lower steadying member (not shown) and the lower palm resting member 14 (see FIG. 7). The hanging piece 17 (including 17a, the same applies hereinafter) extends downward from the lower end of the door wheel. On the upper surface 12 of the lower frame 2b, a narrow guide groove 15 for guiding the hanging piece 13 is provided over substantially the entire length in the longitudinal direction of the lower frame.

  Further, a partition wall 16 is provided in the lower frame 2b to partition the top and bottom, and a rising wall 17 is provided along the longitudinal direction at a position corresponding to the door wheel, and the rising wall 17 is sandwiched between the partition wall 16 and the door wheel. Thus, an outdoor groove 18 and an indoor groove 19 are formed. The outdoor groove 18 and the indoor groove 19 are detachably provided with an outdoor cover member 20 and an indoor cover member 21 made of, for example, an aluminum extruded shape, which form a substantially flat upper surface 12 of the lower frame 2b. ing. One side portion of the indoor cover member 21 is supported by the bottom portion (partition wall 16) of the indoor groove portion 19, and the other side portion is supported by the rising wall 17. Both sides of the outdoor cover member 20 are supported by the bottom (partition) of the outdoor groove 18. Between the one side part of the outdoor cover member 20 and the rising wall 17, a lower groove 22 is formed which is located below the guide groove 15 and has a groove width wider than the guide groove 15.

  In order to be able to easily clean the lower frame 2b without removing the shoji 3, 4, the outdoor cover member 20 is placed in the outdoor groove 18 of the lower frame 2b in the vicinity of the opposing summing vertices 7c, 7c. End caps 23 and 23 are attached to engage both ends of the longitudinal direction in a removable manner (see FIGS. 9 and 10). That is, in order to facilitate the attachment / detachment of the outdoor cover material 20, the end cap 23 is formed with a locking groove 23 a for locking the end of the outdoor cover material 20 and the outdoor cover material 20. An elastic piece 23b that presses the end portion is provided. The outdoor cover member 20 is divided into right and left at a substantially middle portion in the longitudinal direction, and each of the divided end portions is fixed to the partition wall 16 of the lower frame with a fixing tool such as a screw (screw) 24. It has become.

  The indoor cover material 21 is divided into a central cover material located at the lower part of the both inner shojis 4 in the closed position and cover materials on both sides, which are screwed so that the inside of the guide groove 15 can be cleaned. Screw) 24 and a stopper (not shown) for inner limbs can be easily attached and detached. A lower portion of the partition wall 16 is a space portion 25, and the space portion 25 communicates with an outdoor drainage groove through a drainage port 26 provided on the outdoor wall of the lower frame 2 b. The partition wall 16 of the lower frame 2b is provided with a drain hole (not shown) that communicates the outdoor space with the space 25 of the lower frame 2b rather than the shoji 3 and 4 when closed. In the illustrated example, the space portion 25 of the lower frame 2b is formed of a hollow portion (hollow portion), but is not limited thereto.

  In order to shut off the indoor side and the outdoor side of the sash 1 in an airtight or watertight manner when the inner impeller 4 is closed, and in order to prevent rainwater from entering easily because the lower frame upper surface 12 is a flat surface. It is important how to form a continuous airtight line (also called a water stop line) between the two and the shoji 3 and 4 when closed. In the present embodiment, a soft air-tight airtight material 27 is provided between the hanging piece 13 (including 13a) of the closed inner sill 4 in the lower frame 2b and the indoor side edge of the guide groove 15. Yes. The lateral airtight member 27 is attached to the indoor side edge portion of the guide groove 15, specifically, to the outdoor surface of the indoor cover member 21 via the airtight member attaching groove portion 27 a. The indoor surface of the hanging piece 13 is in contact. In addition, the side airtight material 27 is provided in the range corresponding to the drooping piece 13 of the inner shoji 4 at the time of closing.

  The horizontal airtight material 27 is cut at the position of the summoning cage 5c of the inner shoji 4 in the closed position, and the horizontal airtight material 27 and the summing vertical airtight material 11 are connected at the cutting position to make the airtight line continuous. In addition, the inside of the guide groove 15 (including the lower groove 22) below the summing bowl (also referred to as the summon bowl) 5c of the shoji 4 when the shoji is closed is located at the position of the summoning bowl 5c. For example, a water blocking block (not shown) made of, for example, a soft resin is provided to partition the outside and the indoor side. In addition, in order to sufficiently divide the inside of the guide groove 15 into the outdoor side and the indoor side below the summing bowl 5c, a windshield member made of, for example, a soft resin (not shown) is provided on the outdoor surface of the indoor cover member 20. Is mounted using the airtight material mounting groove 27a.

  On the other hand, a pair of left and right gastropod vertical airtight members 28 and 28 are provided on the indoor side between the gastropods 5d and 5d, which are the abutting portions of the left and right inner shojis 4 and 4. More specifically, the soft palm jointed vertical gas-tight members 28, 28 are provided on the indoor side portions of the facing surfaces of the joint palms 5d, 5d, respectively, through the hermetic material mounting groove 28a along the vertical direction which is the longitudinal direction. It has been. Further, at the lower part between the gas palm rods 5d and 5d, a gas palm rod lower airtight material 29 for connecting the gas palm rod vertical airtight materials 28, 28 and the horizontal airtight material 27 is provided. More specifically, resin-made palm-knot lower steady members 14 and 14 are attached to the lower portions (lower end portions) of the palm-armed rods 5d and 5d. 4. As shown in FIGS. 5 to 7 (a) and (b), sheet-like gastrophobic lower airtight members 29 and 29 having elasticity like a sponge are attached with double-sided adhesive tape or adhesive, respectively. The joint palm collar 5 d has a hollow portion 30 that is continuous in the vertical direction, and the palm joint lower portion steadying member 14 is fitted and attached to the lower end portion of the hollow portion 30.

  The joint palm lower part steadying member 14 has a fitting insertion portion 14a fitted into the hollow portion 30 of the joint palm 5d, and a lower end of the fitting insertion portion 14a is brought into contact with a lower end of the joint palm 5d. A portion 14b is formed, and the hanging piece 13a is formed in the corresponding contact portion 14b. Further, a protruding portion 14c is provided on the contact portion 14b with a predetermined gap next to the fitting insertion portion 14a. As a result, when the insertion portion 14a is inserted into the lower end portion of the hollow portion 30 of the joint palm 5d, the projecting portion 14c projects from the opposing surface (end surface) of the joint palm 5d, 5d. . The hanging piece 13a is extended to the position of the protruding portion 14c. The protruding portion 14c is appropriately formed with a hole 34 through which a tapping screw 33 connecting the joint palm 5d and the lower rod 5b, a height adjusting screw of the door roller, or the like is inserted. On the end surfaces of the projecting portion 14c and the hanging piece 13a, the gas palm collar lower airtight material 29 cut into the shape of the end surface is attached. A groove 35 is formed on one side (inside of the room) of the projecting portion 14c so that the lower end portion of the gas palm vertical airtight material 28 enters with the airtight material mounting groove 28a. On the other hand (on the left side when viewed from the room side), covering pieces 36 and 37 are formed in the vertical direction on the indoor side and the outdoor side of the palm palm 5d so as to cover the butted portion of the palm palm 5d from the outside. Auxiliary cover portions 36 a and 37 a connected to the lower ends of the cover piece portions 36 and 37 are formed on the stop member 14.

  Further, as shown in FIGS. 3 and 6 to 8, rainwater or the like that has entered the inside of the heel 5 of the shoji 4 (for example, the glass panel mounting groove 38) is located above the gastight heel lower airtight member 29 of the cocoon ridge 5 d. A drain hole (also referred to as a drain hole) 39 is provided for draining the water. A notch 41 for draining the water is provided at the end portion of the glass panel mounting groove 38 on the side of the palm wall (see FIG. 3). The water flows down to the upper surface of the partition plate portion 42 below the glass panel mounting groove 38 of the lower rib 5b, and drains holes 39a, 39 provided on the inner and outer end surfaces of the joint palm rod 5d and the upper end portions of the fitting insertion portions 14a. It is designed to be drained out of the trough 5 through. In order to improve drainage, it is preferable to form an inclined surface 43 inclined downward from one drain hole 39a side toward the other drain hole 39 side at the upper end portion of the fitting insertion portion 14a. Further, since the inside of the ridge 5, that is, the inside of the glass panel mounting groove 38 is a closed space, it becomes difficult to drain if the pressure drops below the atmospheric pressure outside the ridge 5 due to drainage. Therefore, an air introduction hole (aeration hole) 40a that communicates with the inside of the gutter 5, that is, inside the glass panel mounting groove 38, and introduces air into the glass panel regular fitting groove 38, above the gas palm gutter lower airtight member 29. , 40 is provided to further improve drainage. By introducing air into the glass panel mounting groove 38, water such as rainwater entering the glass mounting groove can be easily and smoothly drained out of the frame 2.

  On the upper part of the projecting portion 14c of the joint palm lower part steadying member 14, the outdoor side which receives water drained from the drain hole 40 on the outer end surface of the joint palm rod 5d and is opposite to the joint palm vertical airtight material 28 side. It is preferable that an inclined surface 44 that is inclined downward is formed on the outdoor side in order to guide the air flow (to facilitate the flow down). The water drained outside the trough 5 flows down from the upper inclined surface 44 of the projecting portion 14c along the outdoor surface of the projecting portion 14c, and further, a gap between the auxiliary cover portion 37a and the suspended piece 13a is formed on the outdoor surface of the suspended piece 13a. It flows down along and falls into the guide groove 15 and is drained from the drainage hole of the partition wall 16 into the space 25 in the lower frame 2b.

  According to the sash 1 having the above configuration, the frame 2 composed of the upper frame 2a, the lower frame 2b and the left and right vertical frames 2c, 2c, and the outer cover 3, which is provided on both sides of the frame 2 to be fitted and killed. 3 and a pair of left and right inner impellers 4 and 4 that are slidably opened and closed at the center of the frame 2 and the upper surface 12 of the lower frame 2b is formed in a substantially flat surface. A sash 1 of the center draw type is obtained by fitting both sleeves. In addition, a hanging piece 13 is provided at the lower outside of the inner door 4 and a guide groove 15 for guiding the hanging piece 13 is formed on the upper surface 12 of the lower frame 2b. It is difficult for sand and dust to adhere to the traveling surface 12a of the shoji 4 from the outdoor side, and it is possible to suppress the traveling surface 12a from being damaged.

  Further, a lateral airtight member 27 is provided in the guide groove 15 to seal the gap between the hanging pieces 13, and a palm for sealing the gap between the palms on the indoor side between the palms 5 d and 5 d, which are the butted portions of the inner limb 4. Since the vertical airtight material 28 is provided, and the lower airtight material 29 for connecting the vertical gastight material 28 and the horizontal airtight material 27 is provided in the lower part between the joint palms 5d, 5d, the joint palm 5d, 5d, The water tightness of the lower part between 5d can be ensured. Further, since the drainage hole 39 (including 39a) for draining the water that has entered the collar 5 of the inner shroud 4 is provided above the gastight collar lower airtight material 29 of the palm palm collar 5d, Water that has entered 5 can be easily drained to the outside. In this case, since the air introduction hole 40 (including 40a) communicating with the glass panel mounting groove 38 is provided above the gas palm collar lower airtight member 29 of the gas palm collar 5d, it enters the collar 5 of the inner shoji 4. Water can be drained smoothly outside the room. Therefore, high water tightness of the palm portion in the sash 1 can be ensured.

  Although the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above-described embodiments, and various design changes and the like can be made without departing from the scope of the present invention. is there. In the embodiment, the door running surface of the cover material is formed in a convex surface according to the shape of the door wheel, but may be formed in a concave surface. The present invention can be applied to, for example, a four-seat type sash in addition to a sash of a center-part draw type in which both sleeves are fitted. The opening position of the air introduction hole may be the upper end portion of the gas palm ridge (below the upper heel), or may be other than the palm ridge, such as an upper heel. In addition, by increasing the diameter of the drain hole (including the long hole), the air hole may be used as the air inlet hole without providing the air inlet hole separately.

It is a room front view showing an embodiment in which the present invention is applied to a center draw window with both sleeves fitted. FIG. 2 is an enlarged cross-sectional view of FIG. 1. It is a principal part expansion perspective view. It is a perspective view of one gassho-naki. It is a perspective view of the other gassho-an. It is a principal part expanded sectional view. (A) is a perspective view of one joint palm lower part steadying member, (b) is a perspective view of the other joint palm lower part steadying member. It is explanatory drawing explaining the flow of water and air. It is a perspective view which shows the state which removes an indoor side cover material. It is a perspective view which shows the state which removes an indoor side cover material.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Opening device 2 Frame 2a Upper frame 2b Lower frame 2c Vertical frame 3 Hand-operated child 4 Inner child 5 １３ 13 Drooping piece 15 Guide groove 27 Lateral airtight material 28 Joint palm vertical airtight material 29 Joint palm lower airtight material 39 Drain hole 40 Air Introduction hole

Claims (2)

  A frame composed of an upper frame, a lower frame, and left and right vertical frames, an external shoji that can be fitted or slidably opened and closed on both sides of the frame, and a left and right slidably opened and closed at the center of the frame A pair of inner impellers, the upper surface of the lower frame is formed in a substantially flat surface, a hanging piece is provided on the lower outside of the inner door, and a guide groove for guiding the hanging piece is formed on the upper surface of the lower frame. The guide groove is provided with a horizontal airtight material that seals between the hanging pieces, and the gastrophobic vertical airtight material that seals the gap between the gastropods is provided on the indoor side of the gastropod that is the abutment portion of the inner limb. An opening device characterized in that a gas palm collar lower airtight material for connecting the gas palm collar vertical airtight material and the horizontal gastight material is provided in a lower portion between the gas palm collars.   A frame composed of an upper frame, a lower frame, and left and right vertical frames, an external shoji that can be fitted or slidably opened and closed on both sides of the frame, and a left and right slidably opened and closed at the center of the frame A pair of inner impellers, the upper surface of the lower frame is formed in a substantially flat surface, a hanging piece is provided on the lower outside of the inner door, and a guide groove for guiding the hanging piece is formed on the upper surface of the lower frame. The guide groove is provided with a horizontal airtight material that seals between the hanging pieces, and the gastrophobic vertical airtight material that seals the gap between the gastropods is provided on the indoor side of the gastropod that is the abutment portion of the inner limb. A gas-tight heel lower air-tight material is connected to the lower part of the gas pod between the gas-bearing ridge and the air-tight material connecting the vertical and horizontal air-tight materials. An opening device characterized in that a drainage hole is provided.

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