Waterproof double door

Abstract

To provide a double swing door improved in waterproof performance of a meeting part.SOLUTION: In a double-opening waterproof door including a first door body 2 and a second door body 3, a meeting member 5 is provided on an indoor side of a door end side portion of the second door body 3, the meeting member 5 is provided with a meeting watertight member 6 extending in a height direction, an indoor side portion of the door end side portion of the first door body 2 is in close contact with the meeting watertight member 6 in a state where an opening is fully closed, and a door end side vertical frame 22 forming the door end side portion of the first door body 2 is made of a frame material having a U-shaped cross section opened toward a door end side. The door leading end-side vertical frame forming the door leading end-side portion of the second door body 3 is composed of a hollow frame member (first member 32 + second member 38).SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a double-wing watertight door. [Background technology]

[0002] When a double-wing waterproof door consisting of a main door and a sub-door is in a fully closed state, the three sides (top, bottom, and tail) of the main door and the sub-door each abut and tightly fit against watertight members formed around the door frame, forming a watertight structure around the entire perimeter, and at the joint, the front end of the main door abuts and tightly fits against the joint watertight member formed on the front end of the sub-door, forming a watertight structure across the entire height of the joint (Patent Document 1).

[0003] When a double-wing waterproof door is fully closed, the main door and the sub-door are supported by the door frame on three sides, but the leading edges of the main door and the sub-door are not supported by the door frame, so there is a problem that the leading edges are easily deflected when subjected to water pressure. In particular, when the main door is closed against the sub-door in the closed position, the leading edge of the main door is supported by the leading edge of the sub-door at the joint, so structurally, the leading edge of the sub-door is more likely to deflect than the leading edge of the main door when subjected to water pressure.

[0004] When a double-wing waterproof door is fully closed, the leading edge of the main door abuts and fits tightly against the watertight joint formed on the leading edge of the secondary door, creating a watertight structure at the joint along its entire height. However, when the main and secondary doors are subjected to water pressure, if the leading edge of the secondary door deforms more than the leading edge of the main door, a gap will form where the leading edge of the main door meets the watertight joint, causing water to leak from the joint and potentially causing flooding into the building. In particular, when a double-wing waterproof door is required to be able to withstand a flood depth of 3m or more, it needs a waterproof structure that can withstand even greater water pressure. [Patent Document 1] Patent Publication No. 2021-50562 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0005] SUMMARY OF THE INVENTION An object of the present invention is to provide a double door with improved waterproofing performance at the joint. [Means for solving the problem]

[0006] The technical means adopted by the present invention are: A double-wing waterproof door consisting of a first door body and a second door body, A joint member is provided on the indoor side of the door tip side of the second door body, and a joint watertight member extending in the height direction is provided on the joint member, When the opening is fully closed, the indoor side portion of the door tip side portion of the first door body is in close contact with the watertight joint member, The door-end side vertical frame that forms the door-end side portion of the first door body is made of a frame material that is U-shaped in cross section and is open toward the door end side, The door-end side vertical frame forming the door-end side portion of the second door body is made of a hollow frame material, It is a double-door, waterproof door.

[0007] In one embodiment, a batten is provided on the outdoor side of the door edge portion of the first door body, and when the opening is fully closed, the batten faces the outdoor side of the door edge portion of the second door body. In one embodiment, the first door body is formed by a framework consisting of an upper frame, a lower frame, a vertical frame at the door front end, and a vertical frame at the door rear end that constitute the main frame, and multiple central ribs, and by bonding a surface material to the framework. In one embodiment, the second door body is formed by a framework consisting of an upper frame, a lower frame, a vertical frame on the door front side, a vertical frame on the door rear side, and multiple central ribs, and by adhering a surface material to the framework. In one embodiment, the vertical frame (frame material) on the door edge side of the first door body and the vertical frame (frame material) on the door edge side of the second door body are made of the same metal (e.g., stainless steel, steel, etc.) and have the same thickness.

[0008] In one embodiment, the hollow frame material is A first member consisting of a front edge forming the door tip side end surface of the second door body, an outdoor side front edge, and an indoor side front edge; a second member formed in a U-shape in cross section from a prospective side, an outdoor-side prospective side, and an indoor-side prospective side; The outdoor side of the first member is fixed in a state where it overlaps with the outdoor side of the second member, The indoor side facing edge of the first member is fixed in a state where it overlaps with the indoor side facing edge of the second member. In one embodiment, the first member and the second member are fixed together by a fastening member (screw).

[0009] In one embodiment, A four-way door frame consisting of an upper frame, a lower frame, and left and right vertical frames at the door end; An upper frame side watertight member, a lower frame side watertight member, and left and right door end frame side watertight members provided around the door frame; Equipped with The upper and lower end portions of the watertight joint member extend beyond the upper and lower ends of the joint member, When the opening is fully closed, the upper end portion is in close contact with the first door body and the upper frame side watertight member, and the lower end portion is in close contact with the first door body and the lower frame side watertight member. In one aspect, an upper watertight member is provided in the upper portion of the second door body, which is in close contact with the upper end portion of the upper frame side watertight member and the joint watertight member when the opening is fully closed. A lower watertight member is provided at the lower portion of the second door body, which is in close contact with the lower end portions of the lower frame side watertight member and the joint watertight member when the opening is fully closed. [Effects of the Invention]

[0010] According to the present invention, when water pressure acts on a double-leaf door with the opening fully closed, part of the force acting on the door-edge portion of the first door body acts on the door-edge portion of the second door body (the indoor side portion of the door-edge portion of the first door body abuts against the watertight joint member provided on the second door body), while the strength of the door-edge side vertical frame of the second door body is made greater than the strength of the door-edge side vertical frame of the first door body, thereby suppressing the amount of deflection of the door-edge side portion of the second door body and maintaining a tight fit between the indoor side portion of the first door body and the watertight joint member. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a front view of a double-door device (fully closed state) according to an embodiment of the present invention, as viewed from the outdoor side. [Figure 2] 1 is a cross-sectional view of a double door device (fully closed state) according to an embodiment of the present invention. [Figure 3] FIG. 3 is a vertical cross-sectional view of the arrow A1 in FIG. 2. [Figure 4] FIG. 3 is a vertical cross-sectional view taken along the arrow A2 in FIG. 2. [Figure 5] FIG. 3 is a partially enlarged view of the joining portion in FIG. 2. [Figure 6] This is a front view showing the joining portion (a vertical cross-sectional view taken along the arrow A5 in the upper diagram of Figure 7). [Figure 7] The upper figure is a cross-sectional view taken along the line A3 in Fig. 6. The lower figure is a cross-sectional view taken along the line A4 in Fig. 6. [Figure 8] FIG. 10 is a view showing a second watertight member. [Figure 9] FIG. 10 is a view showing the third watertight member (fourth watertight member) in the deployed position (state before being attached). [Figure 10] This is an oblique view showing the attachment of the second watertight member (joint watertight member) to the door-front side portion of the second door body and the joint member. DETAILED DESCRIPTION OF THE INVENTION

[0012] [A] Overall structure of double door device An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a door device (fully closed state) according to this embodiment, as seen from the outdoor side. FIG. 2 is a cross-sectional view of the door device (fully closed state) according to this embodiment. FIG. 3 is a vertical cross-sectional view taken along the arrow A1 in FIG. 2, and FIG. 4 is a vertical cross-sectional view taken along the arrow A2 in FIG. 2. In FIG. 2, the left side (upper side) is the indoor side, and the right side (lower side) is the outdoor side. In FIGS. 3 and 4, the left side is the outdoor side, and the right side is the indoor side. The waterproof door according to this embodiment is designed to prevent water generated on the outdoor side from seeping into the indoor side. In this specification, the terms "outdoor side" and "indoor side" are used not only to define when an element is actually located on the outdoor side or the indoor side, but also to define a portion or part of an element, for example, to define a portion of an element actually located on the indoor side that is close to the outdoor side.

[0013] As shown in Figure 1, the door device according to this embodiment is a so-called double-swing door, and is composed of a door frame 1 that forms an opening in a building, and a first door element 2 and a second door element 3 that open and close the opening. The door frame 1 is formed into a four-sided frame shape by a horizontally extending upper frame 10, a vertically extending first vertical frame 11, a vertically extending second vertical frame 12, and a horizontally extending lower frame 13. The trailing edge portion of the first door element 2 is rotatably attached to the first vertical frame 11, and the trailing edge portion of the second door element 3 is rotatably attached to the second vertical frame 12. When the opening is fully closed, the leading edge portions of the first door element 2 and the second door element 3 form a joint.

[0014] The first door body 2 and the second door body 3 are configured to open the building opening by rotating them from a closed position toward the outdoors. Normally, the second door body 3 is in a closed position to close one width half of the building opening, and the other width half of the building opening is opened or closed by opening or closing the first door body 2, with the first door body 2 functioning as a parent door or main door and the second door body 3 functioning as a child door or sub door. Furthermore, when necessary, both the first door body 2 and the second door body 3 can be opened to open the entire width of the building opening.

[0015] As shown in Figures 2 and 3, the door frame 1 is formed with four circumferentially concave grooves G1, G2, G3, and G4 that open toward the outdoors, and a first watertight member 4 having elasticity is attached to the four circumferential grooves G1 to G4 over the entire length of the grooves. When the opening is fully closed, the indoor side portions of the first door body 2 and the second door body 3 abut and tightly contact the watertight members 4 on three sides: the upper side, the lower side, and the trailing edge. At the joint portion, the leading edge portion of the first door body 2 abuts and tightly contacts the second watertight member (joint watertight member) 6 that is attached to the groove G5 of the joint member 5 provided on the second door body 3 over the entire height direction.

[0016] [B] First door body The first door body 2 has a frame structure (framework) consisting of an upper frame 20, a lower frame 21, a leading-edge vertical frame 22, a trailing-edge vertical frame 23, and multiple ribs 24, and is formed by bonding (or welding) multiple (typically two) surface materials 25 formed by bending metal plate material into a predetermined shape to the frame structure. Note that the upper frame 20, lower frame 21, leading-edge vertical frame 22, and trailing-edge vertical frame 23 may be welded together to form a four-sided frame, and then the surface materials 25 may be bonded or welded to the four-sided frame.

[0017] As shown in Figures 2 and 3, the top frame 20, bottom frame 21, leading-edge vertical frame 22, trailing-edge vertical frame 23, and back ribs 24 of this embodiment are formed from elongated frame members that are U-shaped in cross section, each consisting of a pair of visible edges and a projected edge. The U-shaped frame members are oriented such that the top frame 20 is open downward, the bottom frame 21 is open upward, the leading-edge vertical frame 22 is open toward the trailing edge, and the trailing-edge vertical frame 23 is open toward the leading edge. The back ribs 24 are arranged in pairs at intervals in the width direction of the first door body 2. In this embodiment, the projected edges of the back ribs 24 are fastened together with screws, but they may also be fastened together by welding.

[0018] As shown in Figure 5, the door-end vertical frame 22 of the first door body 2 is a long frame material that is formed in a U-shape in cross section from an outdoor-side visible edge 220, an indoor-side visible edge 221, and a visible edge 222, and extends in the vertical direction.

[0019] The frame structure and surface material in this embodiment are made of stainless steel, but the materials for the frame structure and surface material 25 are not limited and may be made of steel, for example. In this embodiment, the thickness of the ribs, i.e., the upper frame 20, lower frame 21, leading vertical frame 22, trailing vertical frame 23, and multiple ribs 24, is the same as the thickness of the surface material 25. The thickness of the ribs may be thicker than the thickness of the surface material 25.

[0020] As shown in Figures 2, 3, and 5, the first door body 2 has a vertically rectangular outdoor side portion 20', a vertically rectangular indoor side portion 21', a door front end face 22', a door rear end face 23', an upper end face 24', and a lower end face 25', and these surface portions are formed from a surface material 25.

[0021] As shown in Figure 5, a batten 29 consisting of a protruding piece protruding in the view direction from the door leading end face 22' is formed on the outdoor side portion of the door leading end face 22' of the first door body 2. The batten 29 is formed by folding back one of the surface materials 25 that forms the outdoor side surface portion 20' of the first door body 2 and the outdoor side portion of the door leading end face 22' and making it adhere tightly.

[0022] 5, the door-front side portion of the first door body 2 is made up of an outdoor-side visible edge 220, an indoor-side visible edge 221, and a projected edge 222, a door-front side vertical frame 22 formed in a U-shape in cross section, and a surface material 25 portion bonded to the surface of the door-front side vertical frame 22. More specifically, the door-front side portion of the surface portion of one of the surface materials 25 is bonded to the outdoor-side visible edge 220 to form the door-front side portion of the outdoor side portion 20', the folded-back portion of the door-front side of the surface portion forms the batten 29, and the folded portion is bonded to the outdoor side portion of the projected edge 222 to form the outdoor side portion of the door-front side end face 22'. The door-edge side portion of the surface of the other surface material 25 is glued to the indoor side visible edge 221 to form the door-edge side portion of the indoor side portion 21', and the door-edge side bent portion of the surface is glued to the indoor side portion of the visible edge 222 to form the indoor side portion of the door-edge side end face 22'.

[0023] As shown in Figures 1 and 2, the trailing edge of the outdoor side surface 20' of the first door body 2 is rotatably attached to the first vertical frame 11 of the door frame 1 by a hinge 26. A door closer (not shown) is provided above the indoor side surface 21' of the first door body 2. A cremone handle 27 is provided at the lower parts of the outdoor side surface 20' and the indoor side surface 21' of the first door body 2 as a means for pressing the first door body 2. A handle 28 used for opening and closing the first door body 2 is attached to the leading edge of the outdoor side surface 20' and the indoor side surface 21' of the first door body 2.

[0024] [C] Second door body The second door body 3 has a frame structure (skeleton) consisting of an upper frame 30 that constitutes the main frame, a lower frame 31, a vertical frame on the door front side (a hollow frame material formed by connecting the second member 38 to the first member 32), a vertical frame on the door rear side 33, and multiple middle ribs 34, and is formed by adhering multiple (typically two) surface materials 35 formed by bending metal plate material into a predetermined shape to the above frame structure.

[0025] As shown in Figures 2 and 5, the upper frame 30, lower frame 31, trailing edge vertical frame 33, and ribs 34 of this embodiment are formed from frame materials that are U-shaped in cross section, consisting of a pair of visible edges and a concave edge. The orientation of the U-shaped frame materials is such that the upper frame 30 is open downward, the lower frame 31 is open upward, and the trailing edge vertical frame 33 is open toward the door tip. The ribs 34 are arranged in pairs at intervals in the width direction of the second door body 3, with the concave edges of the open-edge frame material and the open-tail edge frame material abutting against each other. In this embodiment, the concave edges of the ribs 34 are fastened together with screws, but they may also be fastened together by welding.

[0026] 5, the door-leading side vertical frame of the second door body 3 is a hollow frame material formed by connecting a first member 32 formed in a generally U-shaped cross section from an outdoor-side visible edge 320, an indoor-side visible edge 321, and a prospective edge 322, and a second member 38 formed in a U-shaped cross section from an outdoor-side visible edge 380, an indoor-side visible edge 381, and a prospective edge 382. In other words, the door-leading side vertical frame (first member 32) of the second door body 3 is reinforced by the second member 38, which is a reinforcing member.

[0027] The outdoor portion of the projected edge 322 of the first member 32, which is formed into an approximately U-shaped cross section from an outdoor-side projected edge 320, an indoor-side projected edge 321, and a projected edge 322, consists of a leading edge projected edge 323 extending in the projected direction from the outdoor-side edge of the projected edge 322 toward the trailing edge, and an outdoor projected edge 324 extending in the projected direction from the trailing edge of the leading edge projected edge 323 toward the outdoor-side projected edge 320, and a step is formed by the leading edge projected edge 323 and the outdoor projected edge 324.

[0028] The projected dimensions of the second member 38 are slightly smaller than the projected dimensions of the first member 32, and the second member 38 is fixed at multiple points in the height direction with screws 325, with the outdoor side view edge 380 of the second member 38 overlapping the inner surface of the outdoor side view edge 320 of the first member 32, and the second member 38 is fixed at multiple points in the height direction with screws 325, with the indoor side view edge 381 of the second member 38 overlapping the inner surface of the indoor side view edge 321 of the first member 32, so that the first member 32 and the second member 38 form a hollow frame material.

[0029] The frame structure and surface material in this embodiment are made of stainless steel, but the material of the frame structure and surface material 35 is not limited and may be made of steel, for example. In this embodiment, the thickness of the ribs, i.e., the upper frame 30, the lower frame 31, the leading edge vertical frame (first member 32, second member 38), the trailing edge vertical frame 33, and the multiple ribs 34, is the same as the thickness of the surface material 35. The thickness of the ribs may be thicker than the thickness of the surface material 35. In this embodiment, the front dimension of the leading edge vertical frame (first member 32) of the second door body 3 is the same as the front dimension of the leading edge vertical frame 22 of the door body 2. Furthermore, in the double-door of this embodiment, the visible dimensions of the leading edge vertical frame 22 of the first door body 2, the visible dimensions (indoor side) of the trailing edge vertical frame 23, the visible dimensions of the rib 24, the visible dimensions of the first member 32 of the second door body 2 (indoor side visible edge 321), the visible dimensions (indoor side) of the trailing edge vertical frame 33, and the visible dimensions of the rib 34 are all the same (see Figure 2).

[0030] As shown in Figures 2, 4, and 5, the second door body 3 has a vertically rectangular outdoor side portion 30', a vertically rectangular indoor side portion 31', a door front end face 32', a door rear end face 33', an upper end face 34', and a lower end face 35', and these surface portions are formed from a surface material 35.

[0031] As shown in Fig. 5, a step is formed in the outdoor portion of the leading edge end face 32' of the second door body 3. More specifically, as shown in Fig. 5, the surface of the leading edge portion of the second door body 3 consists of a leading edge end face 32' extending in the visible direction from the leading edge of the indoor side surface portion 31' toward the outdoor side, a leading edge visible face 323' extending in the visible direction from the outdoor edge of the leading edge end face 32' toward the trailing edge, and an outdoor visible face 324' extending in the visible direction from the trailing edge of the leading edge visible face 323' toward the outdoor side surface portion 30', and a step is formed by the leading edge visible face 323' and the outdoor visible face 324'.

[0032] 5, the door-front side portion of the second door body 3 is made up of a door-front side vertical frame formed into a hollow frame shape from the first member 32 and the second member 38, and a surface member 35 adhered to the surface of the door-front side vertical frame (first member 32). More specifically, the door-front side portion of the surface member of one of the surface members 35 is adhered to the outdoor-side visible edge 320 to form the door-front side portion of the outdoor side section 30', and the door-front side bent portion of the surface member is adhered to the outdoor-side visible edge 324 and the door-front side visible edge 323, and to the outdoor side portion of the visible edge 322 to form a step formed by the outdoor-side visible surface 324' and the door-front side visible surface 323', and the outdoor side portion of the door-front side end face 32'. The door-edge side portion of the surface of the other surface material 35 is glued to the indoor side visible edge 321 to form the door-edge side portion of the indoor side portion 31', and the door-edge side folded portion of the surface is glued to the indoor side portion of the visible edge 322 to form the indoor side portion of the door-edge side end face 32'.

[0033] As shown in Figures 1 and 2, the trailing edge of the outdoor side surface 30' of the second door body 3 is rotatably attached to the second vertical frame 12 of the door frame 1 by a hinge 36. A door closer (not shown) is provided above the indoor side surface 31' of the second door body 3. A cremone handle 37 is provided at the lower parts of the outdoor side surface 30' and the indoor side surface 31' of the second door body 3 as a means for pressing the second door body 3.

[0034] As shown in Figures 2, 3, 5, etc., a joint member 5 is protruded from the door tip side of the indoor side surface portion 31' of the second door body 3. A concave groove portion G5 (see Figure 5) that opens toward the outdoor side is formed in the joint member 5 along the height direction, and a second watertight member (joint watertight member) 6 is attached to the groove portion G5 along the height direction.

[0035] [D] Composition of the joining section The configuration of the joint between the first door body 2 and the second door body 3 will be described in detail. [D-1] Composition of the outdoor part of the joint As shown in Figure 5, a step is formed at the outdoor portion of the leading edge end face 32' of the second door body 3, between the leading edge visible surface 323' and the outdoor visible surface 324'. A batten 29 is formed at the outdoor portion of the leading edge end face 22' of the first door body 2, protruding in the visible direction from the leading edge end face 22'. When the first door body 2 and the second door body 3 are in the closed position, the leading edge end face 22' of the first door body 2 faces the leading edge end face 32' of the second door body 3, the batten 29 of the first door body 2 faces the leading edge visible surface 323' of the second door body 3, and the tip of the batten 29 faces the outdoor visible surface 324' of the second door body 3. In addition, the door-leading end surface 32' of the second door body 3 may not have a step, in which case the protrusion of the first door body 2 may extend so as to face the door-leading portion of the outdoor side surface portion 30' of the first door body, in which case the protrusion will be biased toward the outdoor side relative to the outdoor side surface portion 20' of the first door body 2 and extend toward the door trailing end side of the second door body 3.

[0036] [D-2] Joint members As shown in Figures 2, 3, 5, etc., a vertically extending joint member 5 is provided on the leading edge of the indoor side surface 31' of the second door body 3. In this embodiment, the joint member 5 is a protrusion made of a frame material, but it may also be formed from a solid protrusion. The joint member 5 has an outdoor facing surface 50 that is attached to the indoor side surface 31' by abutting it. The joint member 5 is provided with a vertically extending groove G5 that is located on the leading edge of the outdoor facing surface 50 and projects from the leading edge end surface 32' of the second door body 3 in the facing direction (away from the trailing edge end surface 33') and opens toward the outdoors. The groove G5 is a pocket for attaching the second watertight member 6. In this embodiment, the joint member 5 provides a groove portion G5 in which the second watertight member 6 is attached, and a French drop (a French drop rod indicated by reference number R) is attached as a means for fixing the second door body 3 in the closed position.

[0037] The configuration of the joint member 5 according to this embodiment will be described in detail. As shown in the upper diagram of Fig. 7, the joint member 5 comprises an outdoor-side facing surface 50, a first facing surface 51 on the trailing edge side extending in the facing direction from the trailing edge end of the outdoor-side facing surface 50 toward the indoor side, an indoor-side facing surface 52 extending in the facing direction from the indoor-side end of the first facing surface 51 on the trailing edge side toward the leading edge side, an intermediate facing surface 53 extending in the facing direction from the leading edge end of the indoor-side facing surface 52 toward the outdoor side, and an outdoor-side facing surface of the intermediate facing surface 53. The door frame 5 includes an intermediate facing surface 54 extending in the facing direction from the end toward the door edge, a second facing surface 55 on the door edge side extending in the facing direction from the door edge end of the intermediate facing surface 54 toward the outdoor side, a first side surface 56 extending from the door edge end of the outdoor facing surface 50 toward the indoor side, a second side surface 57 facing away from the first side surface 56, and a bottom surface 58 connecting the indoor side end of the first side surface 56 and the indoor side end of the second side surface 57. The shape of the door frame 5 is not limited to that shown in the figure. For example, if the door frame 5 does not have a French groove, the door frame 5 may simply be formed from the outdoor facing surface 50 and the groove portion G5 (first side surface 56, second side surface 57, bottom surface 58).

[0038] In the joint member 5, a groove G5 is formed from the first side surface 56, the second side surface 57, and the bottom surface 58. The first side surface 56 of the joint member 5 and the leading edge end surface 32' of the second door body 3 are located on the same vertical plane and are flush with each other. The distance between the first side surface 56 and the second side surface 57, i.e., the groove width of the groove G5, is greater than the distance between the leading edge end surface 32' of the second door body 3 and the leading edge end surface 22' of the first door body 2 in the fully closed position. A protrusion 59 is formed from the leading edge-side second visible surface 55 and the second side surface 57, and the tip of the protrusion 59 faces, at a distance, the indoor side surface 21' of the first door body 2 in the closed position. The projected dimension of the second side surface 57 is smaller than the projected dimension of the first side surface 56, and the tip of the protrusion 59 is located indoors relative to the outdoor-side visible surface 50.

[0039] [D-3] Second watertight member (joint watertight member) A second watertight member 6 is attached to the groove G5 over the entire height. As shown in Fig. 8, the second watertight member 6 is an elongated member that is formed in a substantially rectangular cross section from a front surface 60 facing the outdoors, a rear surface 61, a first visible surface 62, and a second visible surface 63, and extends in the height direction. In a typical embodiment, the second watertight member 6 is a watertight rubber made of rubber.

[0040] 8, the front surface 60 has a surface 600 extending in the height direction parallel to the rear surface 61, and a first protrusion 601 protruding to the outdoors is formed in the height direction on the side of the surface 600 farther from the door edge of the second door body 3 (the second visible surface 63 side), and a second protrusion 602 protruding to the outdoors is formed in the height direction on the side of the surface 600 closer to the door edge of the second door body 3 (the first visible surface 62 side). That is, the front surface 60 of the second watertight member 6 is formed by the surface 600 and the first protrusion 601 and the second protrusion 602 on both the left and right sides of the surface 600. A hollow portion 64 is formed in the second watertight member 6 in the height direction at a position biased toward the front surface 60 side.

[0041] The upper portion of the second watertight member 6 has an upper end portion that protrudes upward from the upper end 500 of the joint member 5, and the upper surface of the second watertight member 6 is formed from a horizontal surface 65 on the rear surface 61 side and an inclined surface 67 that slopes obliquely upward from the front of the horizontal surface 65 toward the outdoor side. In the upper portion of the second watertight member 6, the portion that protrudes above the horizontal surface 65 is called an upper protrusion 6B. The lower portion of the second watertight member 6 has a lower end portion that protrudes downward from the lower end 501 of the joint member 5, and the lower surface of the second watertight member 6 is formed from a horizontal surface 66 on the rear surface 61 side and an inclined surface 68 that slopes obliquely downward from the front of the horizontal surface 66 toward the outdoor side. In the lower portion of the second watertight member 6, the portion that protrudes below the horizontal surface 66 is called a lower protrusion 6A.

[0042] [E] Watertight double door structure [E-1] Overview When the building opening is closed by the first door body 2 and the second door body 3, the upper, lower and trailing edge portions of the indoor side surface 21' of the first door body 2 and the upper, lower and trailing edge portions of the indoor side surface 31' of the second door body 3 come into contact with the first watertight member 4, thereby forming a four-way sealed structure located around the four peripheries of the building opening (Figs. 2 and 3). In addition, the leading edge portion of the indoor side surface 21' of the first door body 2 comes into contact with the second watertight member 6, thereby forming a sealed structure in the height direction at the joint portion. Furthermore, in this closed state, by pulling the first door body 2 and the second door body 3 toward the interior side with the cremone handles 27, 37, the upper, lower and trailing edge portions of the indoor side surface 21' of the first door body 2 are pressed against the first watertight member 4, and the upper, lower and trailing edge portions of the indoor side surface 31' of the second door body 3 are pressed against the first watertight member 4, forming a four-way watertight structure located around the four peripheries of the building opening. In addition, by pressing the leading edge portion of the indoor side surface 21' of the first door body 2 against the second watertight member 6, a watertight structure in the height direction at the joint is formed.

[0043] In this embodiment, so-called biaxial hinges are used as the hinges 26, 36, and it is possible to push the second door body 3 and the first door body 2 as a whole in the closed state toward the indoor side (pushing by water pressure or a pressing means).By pushing the first door body 2 and the second door body 3 in the normal closed position, the periphery of the indoor side portions 21', 31' of the first door body 2 and the second door body 3 (excluding the door tip side portion) is tightly attached to the first watertight member 4, and the door tip side portion of the indoor side portion 21' of the first door body 2 is tightly attached to the second watertight member 6, it is possible to close the first door body 2 and the second door body 3 in a more sealed state.

[0044] [E-2] Watertight structure around the first and second door bodies The watertight structure of the second door body 3, the first door body 2, and the door frame 1 in the closed position will now be described. The upper frame 10 of the door frame 1 is a long element extending in the opening width direction, opens toward the outdoors, and is formed with a concave groove G1 extending horizontally in the opening width direction. A first watertight member (upper frame-side watertight member) 4 is attached to the groove G1, and an upper portion of the indoor side surface portion 21' of the first door body 2 in the fully closed position and an upper portion of the indoor side surface portion 31' of the second door body 3 are in tight contact with the first watertight member (upper frame-side watertight member) 4.

[0045] The bottom frame 13 of the door frame 1 is a long element extending in the opening width direction, opens toward the outdoor side, and has a concave groove G4 formed therein that extends horizontally in the opening width direction. A first watertight member (bottom frame side watertight member) 4 is attached to the groove G4, and a lower portion of the indoor side surface 21' of the first door body 2 in the fully closed position and a lower portion of the indoor side surface 31' of the second door body 3 are in close contact with the first watertight member (bottom frame side watertight member) 4. The first watertight member 4 (bottom frame side watertight member) is located across the height between the outdoor side lower surface 130 and the indoor side upper surface 131 of the bottom frame 13.

[0046] The first vertical frame 11 of the door frame 1 is a long element extending in the opening height direction, and is open toward the outdoors, with a concave groove G2 formed therein that extends perpendicularly to the opening height direction. A first watertight member (vertical frame-side watertight member) 4 is attached to the groove G2, and the trailing edge of the indoor side surface portion 21' of the first door body 2 in the fully closed position is in tight contact with the first watertight member (vertical frame-side watertight member) 4.

[0047] The second vertical frame 12 of the door frame 1 is a long element extending in the opening height direction, and is open toward the outdoors, with a concave groove G3 formed therein that extends perpendicular to the opening height direction. A first watertight member (vertical frame-side watertight member) 4 is attached to the groove G3, and the trailing edge of the indoor side surface portion 31' of the second door body 3 in the fully closed position is in close contact with the first watertight member (vertical frame-side watertight member) 4.

[0048] The first watertight member 4 is a long member extending along the length of the grooves G1 to G4, and is fitted around the entire length of the groove G1 formed in the upper frame 10, the groove G2 formed in the first vertical frame 11, the groove G3 formed in the second vertical frame 12, and the groove G4 formed in the lower frame 13. In a typical embodiment, the first watertight member 4 is a watertight rubber made from rubber. The first watertight member 4 may also be formed by closely adhering a plurality of short elements to each other.

[0049] [E-3] Watertight structure of the joint between the first and second door bodies As shown in Fig. 3, when the first door body 2 is in the closed position, a horizontal surface 65 of the upper end of the second watertight member 6 is in contact with an outdoor portion of the indoor side lower surface 101 of the upper frame 10, and an inclined surface 67 is located above the indoor side lower surface 101 of the upper frame 10 and is in contact with the first watertight member (upper frame side watertight member) 4. A horizontal surface 66 of the lower end of the second watertight member 6 is in contact with an outdoor portion of the indoor side upper surface 131 of the lower frame 13, and an inclined surface 68 is located below the indoor side upper surface 131 of the lower frame 13 and is in contact with the first watertight member (lower frame side watertight member) 4.

[0050] When the second watertight member 6 is attached to the groove G5 of the joint member 5 of the second door body 3, the rear surface 61 abuts the bottom surface 58, the first projected surface 62 abuts the first side surface 56, and the second projected surface 63 abuts the second side surface 57. The front surface 60 protrudes slightly outdoors beyond the indoor side surface 31' of the second door body 3. The first projected surface 62 of the second watertight member 6 is flush with the leading edge end surface 32' of the second door body 3. The upper end portion of the second watertight member 6 extends above the upper end 500 of the joint member 5, and the lower end portion of the second watertight member 6 extends below the lower end 501 of the joint member 5. The second watertight member 6 may be formed from multiple elements, for example, by closely adhering multiple elements divided in the height direction to each other.

[0051] As shown in Figure 5, when the first door body 2 and the second door body 3 are in a fully closed position (when the opening is closed), the door-tip side portion of the indoor side portion 21' of the first door body 2 adheres to the portion of the front portion 60 of the second watertight member 6 on the second visible surface 63 side, i.e., the first protrusion 601, along the height direction, forming a linear adhesion portion along the height direction.

[0052] In this embodiment, the position of the face portion 600 of the front surface portion 60 is in a position where it can come into contact with the indoor side surface portion 21' of the first door body 2 in the normal closed state (when water pressure is not applied). Therefore, when the first door body 2 is in the fully closed position, first, the door-edge side portion of the indoor side surface portion 21' comes into contact with the first protrusion 601, and then rotates so as to push in the first protrusion 601, thereby assuming the closed position.

[0053] When the door edge side portion of the indoor side surface portion 21' of the first door body 2 is in close contact with the first protrusion 601 of the front surface portion 60 of the second watertight member 6, the portion of the front surface portion 60 of the second watertight member 6 on the second visible surface 63 side is elastically pressed in, and the door edge side portion of the indoor side surface portion 21' of the first door body 2 is in close contact with the second side surface portion of the face portion 600 in addition to the first protrusion 601. In this way, when the opening is closed, the door edge side portion of the indoor side surface portion 21' of the first door body 2 is in close contact with the second watertight member 6 provided on the door edge side of the second door body 3 in the closed position, including the linear contact portion, thereby providing a watertight structure throughout the height direction of the joint portion.

[0054] In addition, in this embodiment, the second protrusion 602 protruding from the outdoor side of the first visible surface 62 of the second watertight member 6 is in close contact with the indoor side portion of the door leading end surface 32' of the second door body 3, thereby preventing water leakage from between the corner formed by the front portion 60 of the second watertight member 6 and the first visible surface 62 and the corner formed by the indoor side portion 31' of the second door body 3 and the door leading end surface 32'.Even if water leakage occurs, the outdoor visible surface 50 of the joint member 5 extending in the vertical direction and the indoor side portion 31' of the second door body 3 are in close contact while being waterproofed, and further the groove portion (pocket) G5 extending in the vertical direction and the second watertight member 6 are in close contact, so water is prevented from entering the indoor side.

[0055] [E-4] Watertight structure of the lower and upper parts of the joint The second watertight member (joint watertight member) is composed of an upper end portion located above the upper end 500 of the joint member 5 (i.e., the upper end of the groove G5) in the height direction, a portion attached to the groove G5, and a lower end portion located below the lower end 501 of the joint member 5 (i.e., the lower end of the groove G5). When the opening is closed, the lower end 501 of the joint member 5 (i.e., the lower end of the groove G5) is located above and spaced apart from the upper surface 131 of the lower frame 13 on the indoor side, and the second watertight member 6 extends below the lower end 501 of the joint member 5. In the lower portion of the second watertight member 6, the portion (lower end portion) located below the lower end 501 of the joint member 5 (i.e., the lower end of the groove G5) is a portion that is not supported by the groove G5. In the upper portion of the second watertight member 6, the portion (upper end portion) located above the upper end 500 of the joint member 5 (that is, the upper end of the groove portion G5) is a portion that is not supported by the groove portion G5.

[0056] In this embodiment, the second watertight member 6 and the third watertight member (lower watertight member) 7 work together to prevent water leakage from between the lower part of the corner (second protrusion 602) formed by the front surface 60 and the first projected surface 62 of the second watertight member 6 and the lower part of the corner or the area near the corner formed by the indoor side surface 31' and the door front end surface 32' of the second door body 3, and the second watertight member 6 and the fourth watertight member (upper watertight member) 7' work together to prevent water leakage from between the upper part of the corner (second protrusion 602) formed by the front surface 60 and the first projected surface 62 of the second watertight member 6 and the upper part of the corner or the area near the corner formed by the indoor side surface 31' and the door front end surface 32' of the second door body 3.

[0057] As shown in Figures 6 and 10, in this embodiment, a third watertight member (lower watertight member) 7 is provided in the lower portion of the second door body 3 so as to cover the corner formed by the lower portion of the indoor side portion 31' of the second door body 3 and the lower portion of the door front end face 32', and a fourth watertight member (upper watertight member) 7' is provided in the upper portion of the second door body 3 so as to cover the corner formed by the upper portion of the indoor side portion 31' of the second door body 3 and the upper portion of the door front end face 32'.

[0058] The third watertight member 7, when attached to the lower portion of the second door body 3, consists of a lower portion 7A located below the lower end 501 of the joint member 5, and an upper portion 7B located above the lower end 501 of the joint member 5. The lower portion 7A of the third watertight member 7 is provided across the lower surface portion 31A' and the lower surface portion 32A' so as to cover the corner formed by the lower surface portion 31A' (lower diagram of FIG. 7) of the indoor side surface portion 31' of the second door body 3 and the lower surface portion 32A' (lower diagram of FIG. 7, FIG. 10) of the door front end side end surface 32', and the lower portion 7A is attached in an L-shaped cross section by a first portion 70 attached (adhered, etc.) to the lower surface portion 32A' and a second portion 71 attached (adhered, etc.) to the lower surface portion 31A'.

[0059] The upper portion 7B of the third watertight member 7 is formed integrally with the first portion 70 of the lower portion 7A, and is composed of a third portion 72 located directly above the first portion 70 and attached (glued, etc.) to a lower portion of the leading end surface 32' of the second door body 3, and a fourth portion 73 formed integrally with the third portion 72 and attached (glued, etc.) to the first side surface 56 of the groove G5 of the joint member 5. The leading end surface 32' of the second door body 3 and the first side surface 56 of the groove G5 are located in the same vertical plane, and the fourth portion 73 of the upper portion 7B of the lower watertight member 7 extends along the first side surface 56 of the groove G5.

[0060] The third watertight member 7, when attached so as to cover the corner formed by the lower part of the indoor side surface 31' and the lower part of the leading edge end face 32' of the second door body 3, consists of a part extending in the front direction along the indoor side surface 31' and a part extending in the front direction along the leading edge end face 32'. The first part 70 and the third part 72 of the third watertight member 7 form a front part 7C that is adhered to the lower part of the leading edge end face 32' of the second door body 3. The fourth part 73 extends in the front direction to the indoor side beyond the indoor side surface 31'. The second part 71 is the front part.

[0061] In one embodiment, the third watertight member 7 is formed from a rubber material with excellent watertight performance. In one embodiment, the third watertight member 7 is softer and has a larger compressibility than the first watertight member 4 and the second watertight member 6. In one preferred embodiment, the third watertight member 7 is formed from EPTSEALER (registered trademark), whose main component is EPDM rubber foam.

[0062] 9 shows the unfolded third watertight member 7 before installation, in which, for example, the upper corner of one end of a horizontally rectangular material is cut out and a slit is formed from the lower corner of the cutout toward the other end, with the lower side of the other end portion being the first portion 70 and the upper side being the third portion 72, the lower portion of the one end being the second portion 71, and the portion of the upper portion where the slit is formed being the fourth portion 73. The third watertight member 7 is attached to the lower portion of the second door body 3 so as to cover the corner formed by the lower portion of the indoor side surface portion 31' and the lower portion of the door leading end face 32' of the second door body 3, with the second portion 71 of the lower portion 7A of the unfolded third watertight member 7 folded at a right angle to the remaining portions. After attachment, the upper portion 7B (third portion 72, fourth portion 73) of the lower watertight member 7 and the first portion 70 of the lower portion 7A extend in the front direction, and the second portion 71 of the lower portion 7A extends in the front direction. The third portion 72 of the upper portion 7B of the lower watertight member 7 and the first portion 70 of the lower portion 7A form a front portion 7C that is bonded to a lower portion of the leading end surface 32' of the second door body 3. The lower end of the fourth portion 73 of the upper portion 7B of the third watertight member 7 coincides with the lower end 501 of the first side surface 56 of the groove portion G5. In the illustrated embodiment, the third watertight member 7 is attached with the lower end of the lower portion 7A coincident with the lower end surface 35' of the second door body 3, but the lower end of the third watertight member 7 does not have to reach the lower end surface 35' of the second door body 3.

[0063] The shape of the third watertight member 7 is not limited to the illustrated embodiment. In this embodiment, the lower portion 7A of the third watertight member 7 is attached in an L-shaped cross section, but for example, only the first portion 70 or the second portion 71 may cover the lower portion of the corner between the indoor side surface portion 31' and the door-front end surface 32' of the second door body 3.

[0064] The third watertight member 7 (first part 70, second part 71, third part 72, fourth part 73) is attached to the lower part of the corner formed by the lower part of the indoor side part 31' of the second door body 3 and the door front end face 32', straddling the upper and lower parts of the lower end 501 of the joint member (groove part G5) 5 so as to include the lower end 501, and the fourth part 73 of the third watertight member 7 is attached to the lower part of the first side surface 56 of the groove part G5 (above the lower end 501). The first visible surface 62 of the second watertight member 6 attached to the groove portion G5 of the joint member 5 is in close contact with the first side surface 56 of the groove portion G5, and the upper part of the lower part of the second watertight member 6 (the lower part, the part above the lower end 501 of the joint member 5) is attached to the groove portion G5 in such a way as to compress and crush the fourth part 73 (upper part 7B) of the third watertight member 7 (top diagram of Figure 7).

[0065] The upper part (the lower part, the part above the lower end 501 of the joint member 5) of the corner (second protrusion 602) of the front surface 60 and the first visible surface 62 of the second watertight member 6 is in close contact with the upper part 7B (the boundary part between the third part 72 and the fourth part 73) of the third watertight member 7 (see the upper diagram in Figure 7). The lower part (the lower part, the part below the lower end 501 of the joint member 5) of the lower part of the corner (second protrusion 602) of the front surface 60 and the first visible surface 62 of the second watertight member 6 is in close contact with the corner of the lower part 7A (the first part 70 and the second part 71) of the third watertight member 7 (see the lower diagram in Figure 7).

[0066] In this embodiment, the third watertight member 7 is softer than the first watertight member 4 and the second watertight member 6, and has a larger compressibility. When the second door body 3 is in the closed position, the second portion 71 of the third watertight member 7 provided on the lower surface portion 31A' of the indoor side surface portion 31' of the second door body 3 comes into close contact with the first watertight member 4 (the watertight member on the lower frame side). At this time, the second portion 71 of the third watertight member 7 is compressed and crushed to a thin wall, so that it comes into close contact with the first watertight member 4 (the watertight member on the lower frame side) without any gaps. In addition, the third watertight member 7 (the corner formed by the first portion 70 and the second portion 71 and the boundary portion between the third portion 72 and the fourth portion 73) provided on the lower portion of the second door body 3 comes into close contact with the corner (second protrusion 602) formed by the front surface portion 60 and the first visible surface 62 of the lower portion of the second watertight member 6 in a compressed state.

[0067] The third watertight member (lower watertight member) 7 has been explained in detail, but the third watertight member (lower watertight member) 7 and the fourth watertight member (upper watertight member) 7' are the same element (Figure 9) inverted upside down (the lower part 7A in Figure 9 becomes the upper part, and the upper part 7B becomes the lower part), and are attached to the lower part and the upper part of the door edge part of the second door body 3, respectively (see Figure 6), so it should be noted that the description of the third watertight member (lower watertight member) 7 can be used.

[0068] [E-5] Reinforcement structure for the joint between the first and second door bodies When water pressure acts on the double-swing door according to this embodiment in a fully closed state, the indoor-side portion of the leading edge portion of the first door body 2 abuts against the watertight joint member 6, and part of the force acting on the leading edge portion of the first door body 2 also acts on the leading edge portion of the second door body 3. Therefore, a larger force acts on the leading edge portion of the second door body 3 than on the leading edge portion of the first door body 2. In this embodiment, the leading edge vertical frame of the second door body 3 is formed from a hollow frame body consisting of the first member 32 and the second member 38, making the strength of the leading edge vertical frame of the second door body 3 greater than the strength of the leading edge vertical frame 22 of the first door body 2. This suppresses the amount of deflection of the leading edge portion of the second door body 3 and maintains close contact between the indoor-side portion of the first door body 2 and the watertight joint member 6. In addition, by reducing the amount of deflection at the door edge portion of the double-swing door, the area of ​​the portion where the lower protrusion 6A of the second watertight member (joint watertight member) 6 is in close contact with the first watertight member 4 (lower frame side watertight member) and the area of ​​the portion where the upper protrusion 6B of the second watertight member (joint watertight member) 6 is in close contact with the first watertight member 4 (upper frame side watertight member) are increased, thereby maintaining the close contact between the lower portion of the second watertight member (joint watertight member) 6 and the third watertight member (lower watertight member) 7, and the close contact between the upper portion of the second watertight member (joint watertight member) 6 and the fourth watertight member (upper watertight member) 7'. [Explanation of symbols]

[0069] 1 door frame 10 Upper frame 11 First vertical frame (end of door vertical frame) 12 Second vertical frame (end of door vertical frame) 13 Bottom frame 2 First door body 22 Door end vertical frame (cross-sectional U-shaped frame material) 22´ Door edge side edge 29 Mesh Board 3 Second door body 32 First member (door end vertical frame made of hollow frame material) 32' Door end face (door end face) 38 Second member (door end vertical frame made of hollow frame material) 4. First watertight member (upper frame watertight member, lower frame watertight member, left and right door end frame watertight members, vertical frame watertight member) 5 Joint members 500 top end 501 Bottom end 6 Second watertight member (joint watertight member) 6A Lower protrusion 6B Upper protrusion 7. Third watertight member (lower watertight member) 7´ Fourth watertight member (upper watertight member) G1~G5 Groove

Claims

1. A double-wing waterproof door consisting of a first door body and a second door body, A joint member is provided on the indoor side of the door tip side of the second door body, and a joint watertight member extending in the height direction is provided on the joint member, When the opening is fully closed, the indoor side portion of the door tip side portion of the first door body is in close contact with the watertight joint member, The door-front vertical frame forming the door-front side portion of the first door body is made of a frame material having a U-shaped cross section that is open toward the door tail side, The door-end side vertical frame forming the door-end side portion of the second door body is made of a hollow frame material, Double waterproof door.

2. A batten is provided on the outdoor side of the door leading end portion of the first door body, and when the opening is fully closed, the batten faces the outdoor side portion of the door leading end portion of the second door body. The double-wing waterproof door according to claim 1.

3. The hollow frame material is A first member consisting of a front edge forming a door tip side end surface of the second door body, an outdoor side front edge, and an indoor side front edge; a second member formed in a U-shape in cross section from a prospective side, an outdoor-side prospective side, and an indoor-side prospective side; The exterior side of the first member is fixed in a state where it overlaps with the exterior side of the second member, The indoor side facing edge of the first member is fixed in a state where it overlaps with the indoor side facing edge of the second member. The double-wing waterproof door according to claim 1 or 2.

4. A four-way door frame consisting of an upper frame, a lower frame, and left and right vertical frames at the door end; An upper frame side watertight member, a lower frame side watertight member, and left and right door end frame side watertight members provided around the door frame; Equipped with The upper and lower end portions of the watertight joint member extend beyond the upper and lower ends of the joint member, When the opening is fully closed, the upper end portion is in close contact with the first door body and the upper frame side watertight member, and the lower end portion is in close contact with the first door body and the lower frame side watertight member. The double-wing waterproof door according to claim 1 or 2.

5. An upper watertight member is provided at the upper portion of the second door body, which is in close contact with the upper end portion of the upper frame side watertight member and the joint watertight member when the opening is fully closed, A lower watertight member is provided at the lower portion of the second door body, which is in close contact with the lower end portions of the lower frame side watertight member and the joint watertight member when the opening is fully closed. The double-wing waterproof door according to claim 4.

Images