Structure of the opening / closing mechanism

Abstract

To provide an opening / closing body device structure configured such that narrowing the width of a groove in the indoor / outdoor direction of a lower frame can suppress the falling of a wheel without impairing a structure for seating a baseboard on the lower frame.SOLUTION: An opening / closing body device structure includes a lower frame 23 which is provided on the outer side of a sash lower frame 17 and against which a baseboard 21 that is the lowermost end of a shutter curtain 19 abuts, wherein the baseboard 21 has at least a draining plate 37 which hangs down on the outer side of the lower frame 23 and an indoor side hanging plate 41 which hangs down on the indoor side; the lower frame 23 has a bottom wall section 43, a standing piece 45 which stands up from the bottom wall section 43 and has a height substantially equal to the upper edge of the sash lower frame 17 and overlaps on the indoor side of the draining plate 37; and a fixing piece 47 which stands up from the bottom wall section 43 and is fixed to the outer surface of the sash lower frame 17; and the bottom wall section 43 is attached with a support body 53 having a clearance filling standing piece 55 whose upper edge is arranged at the same height as the standing piece 45 at a position between the standing piece 45 and the fixing piece 47 where the upper edge does not interfere with the indoor side hanging piece 41.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to the structure of an opening / closing body device.

Background Art

[0002] A threshold surface flat sash that facilitates the entry and exit of a wheelchair between indoors and outdoors and allows easy drainage of rainwater has been proposed (see Patent Document 1). In this threshold surface flat sash, at least a rail and an auxiliary wall project upward on a rail support wall of a lower frame member constituting a sash frame, a hollow water flow gutter is provided below a support wall on the indoor side of the rail, a drain hole is formed in the support wall, a drain port is formed in the front wall of the water flow gutter, a shaft support portion is provided on the upper outer side of the front wall of the water flow gutter, and an opening / closing plate of the drain port is swingably inserted into the shaft support portion.

[0003] According to this threshold surface flat sash, since the rail and the auxiliary wall of the lower frame member are substantially at the same height as the inner wall top plate, the step between the floor board attached to the indoor side of the lower frame member and the step between the approach such as a balcony attached to the outdoor side of the lower frame member are eliminated. Since the auxiliary wall projects outside the outdoor side of the net rail between the inner and outer rails, the groove interval is narrowed by the rail and the auxiliary wall. As a result, the wheelchair can easily enter and exit without the wheels falling in.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, when a shutter device (opening / closing mechanism) is attached to the window, which is an opening in the building, the lower frame of the shutter device is attached to the outdoor side of the lower frame of the sash window. In a shutter device, the shutter curtain, which is the opening and closing mechanism, descends from the top of the window and covers the outside of the sash window, and a baseboard, which is provided at the lower end of the descended shutter curtain, sits on the lower frame. The baseboard and the lower frame have a so-called interlocking rabbet structure in which the protrusions and recesses of each other fit together. This interlocking rabbet structure is used to prevent light leakage between the lower frame and the baseboard when the shutter curtain is closed, and as a security structure to prevent prying open from the outside when the shutter curtain is closed. Furthermore, while shutter devices are installed on the building side after the sash windows are installed, the frame structure of the shutter device is usually fixed to the building side so as to surround the outer perimeter of the sash frame. As a result, if balconies or the like are installed outdoors as described above, the position of the lower frame will be lower than the sash lower frame and below the floor surface on the indoor side. This creates a recessed groove-like area between the indoor and outdoor sides, equal to the width of the lower frame. In other words, if the purpose of installing a shutter device is to obtain light-blocking and security features, it becomes problematic that convenience for moving between the outdoor side such as a balcony and the indoor / outdoor side, as well as comfort as a living space, cannot be obtained.

[0006] The present invention has been made in view of the above circumstances, and its purpose is to provide an opening and closing device structure that can narrow the groove width of the lower frame in the indoor and outdoor directions without obstructing the seating structure of the baseboard on the lower frame, thereby suppressing the wheels of a moving object from falling in or the feet of passersby getting caught. [Means for solving the problem]

[0007] Next, means for solving the above-mentioned problems will be described with reference to drawings corresponding to the embodiments. The structure of the opening / closing device according to claim 1 of the present invention is a structure of an opening / closing device that is provided on the outside of the sash lower frame 17 attached to the outer wall 13 of a building and includes a lower frame 23 that contacts the baseboard 21 which is the lowest end of the opening / closing device that moves up and down, The baseboard 21 has at least a flashing plate 37 that hangs down overlapping the lower frame 23 outward, and an indoor side hanging plate 41 that hangs down spaced apart from the flashing plate 37 on the indoor side. The lower frame 23 has a bottom wall portion 43 that extends outward from the sash lower frame 17, an upright piece 45 that rises from the bottom wall portion 43 and is at approximately the same height as the upper edge of the sash lower frame 17 and overlaps the flashing plate 37 on the indoor side, and a fixing piece 47 that rises from the bottom wall portion 43 at a position indoors from the indoor hanging plate 41 and is fixed to the outer surface of the sash lower frame 17. The bottom wall portion 43 has the indoor side hanging down between the upright piece 45 and the fixing piece 47. board A support 53 is attached which has a gap-filling upright piece 55 positioned at approximately the center of the structure, where its upper edge is at the same height as the upright piece 45, so as not to interfere with the 41.

[0008] In this opening / closing device structure, the lower frame 23 of the opening / closing device is fixed to the outside of the sash lower frame 17. The lower frame 23 has a bottom wall portion 43 that extends further outward than the sash lower frame 17. The lower frame 23 has an upright piece 45 that rises from the bottom wall portion 43 and overlaps with the flashing plate 37 of the baseboard 21 on the indoor side. The lower frame 23 also has a fixing piece 47 that rises from the bottom wall portion 43 at a position indoors from the indoor hanging plate 41 of the baseboard 21 and is fixed to the outer surface of the sash lower frame 17. In other words, the lower frame 23 has a U-shape with an upward opening, where the cross section perpendicular to the longitudinal direction has an upright piece 45 and a fixing piece 47 that rise upward on the front and rear (indoors and outdoors) of the bottom wall portion 43. The space between the upright piece 45 and the fixing piece 47 of the lower frame 23 forms a groove that runs along the longitudinal direction. The baseboard 21 of the opening / closing mechanism, which descends from above, hits and stops (seats) on the lower frame 23. The baseboard 21 has a drip edge 37 that hangs down overlapping the upright piece 45 of the lower frame 23 on the outside. The baseboard 21 also has an indoor hanging plate 41 that hangs down spaced apart from the drip edge 37 on the indoor side. In other words, the baseboard 21 is formed with the drip edge 37 and the indoor hanging plate 41 spaced apart in the indoor-outdoor direction from the outdoor side, forming a U-shape with a downward opening. A support 53 is attached to the bottom wall portion 43 between the upright piece 45 and the fixing piece 47. The support 53 has a gap-filling upright piece 55 whose upper edge is positioned at the same height as the upright piece 45 at approximately the center position between the upright piece 45 and the fixing piece 47. This gap-filling upright piece 55 is the indoor side hanging of the baseboard 21. board It is positioned approximately in the center, not interfering with 41. Therefore, in the structure of the opening and closing device, a support 53 is attached to the bottom wall 43, and a gap-filling upright piece 55 rises from the bottom wall 43, so that the flashing plate 37, upright piece 45, gap-filling upright piece 55, indoor hanging plate 41, and fixing piece 47 fit together alternately from the outside in a rabbet structure. The rabbet structure can prevent wind and rain from easily entering, prevent light such as indoor lighting from leaking to the outside and light such as external light from entering the indoor side, and enhance security by making it difficult to insert prying tools (tools such as crowbars). Furthermore, in the structure of the opening and closing mechanism, a gap-filling upright piece 55 is positioned approximately in the center between the upright piece 45 and the fixed piece 47 in the lower frame 23, thereby narrowing the groove width (gap) W in the conventional lower frame 23 by approximately half. In other words, the wheel 61, which in the conventional design was in danger of falling between the upright piece 45 and the fixed piece 47, can now be supported by the upper edge of the gap-filling upright piece 55. As a result, the groove width of the lower frame 23 in the indoor / outdoor direction can be narrowed without obstructing the seating structure of the baseboard 21 on the lower frame 23, thereby suppressing the wheel 61 from falling into the moving body. In addition, the risk of pedestrians tripping over the lower frame 23 at this position can also be suppressed.

[0009] The structure of the opening / closing device described in claim 2 of the present invention is the structure of the opening / closing device described in claim 1, A rainwater guide surface 57 that slopes downward toward the outdoors is formed on the bottom wall portion 43 to which the support 53 is attached. The support 53 is characterized in that it has a fixed base 59 that is connected to the gap-filling upright piece 55, which stands upright in a substantially vertical direction, via an acute-angled corner, and is parallel to the rainwater guide surface 57.

[0010] In the structure of this opening and closing device, a fixed base 59 is formed on the gap-filling upright piece 55 of the support 53. The fixed base 59 is attached parallel to the rainwater guide surface 57 of the lower frame 23. The rainwater guide surface 57 is formed on the bottom wall 43 with a downward slope toward the outdoors. As a result, the lower frame 23 is able to guide and drain rainwater that flows down from above onto the bottom wall 43 toward the outdoors. The gap-filling upright piece 55 is fixed to the rainwater guide surface 57 via the fixing base 59. In other words, the support 53 is fixed to an inclined surface that slopes downward toward the outdoors. Here, the support 53 is formed in a roughly L-shape by connecting the fixing base 59 and the gap-filling upright piece 55 via an acute corner, so that the gap-filling upright piece 55 can be erected almost vertically. As a result, when a load is applied from the wheel 61, the gap-filling upright piece 55 can support the load from the wheel 61 with a buckling load that is greater than the bending load that deforms in the thickness direction of the plate.

[0011] The structure of the opening / closing device according to claim 3 of the present invention is the structure of the opening / closing device according to claim 1 or 2, The support 85 is composed of multiple gap-filling upright pieces 55, each parallel to the other, between the upright piece 45 and the fixing piece 47, and the hanging down on the indoor side board It is characterized by being positioned in a location that does not interfere with 41, and having each upper edge positioned at the same height as the upright piece 45.

[0012] In the structure of this opening / closing device, multiple gap-filling upright pieces 55 are made up, and the drip plate 37 of the baseboard 21 hangs down on the indoor side board The pieces 41, the upright pieces 45, and each gap-filling upright piece 55 interlock alternately, thereby creating a rabbet structure. These multiple gap-filling upright pieces 55 allow for a further reduction in the groove width of the lower frame 23 in the indoor and outdoor directions. Furthermore, the wheels 61 can be supported at more points, thus distributing the load. In other words, the load on each gap-filling upright piece 55 is reduced, increasing durability. Additionally, the increased number of interlocking points provides a more advantageous structure in terms of preventing wind and rain from entering, reducing light leakage and intrusion, and improving security.

[0013] The structure of the opening / closing device according to claim 4 of the present invention is the structure of the opening / closing device according to claim 1 or 2, The support 53 is characterized in that it is detachably attached to the bottom wall portion 43.

[0014] In this opening / closing mechanism structure, the support 53 can be considered as an option. That is, the structure of the opening / closing mechanism allows the support 53 to be easily attached with screws or rivets, making it possible to retrofit it to the existing lower frame 23. Furthermore, the structure of the opening / closing mechanism allows the support 53 to be easily attached and detached with screws or rivets. By making the support 53 detachable, replacement in case of damage or deterioration becomes easy. In addition, it is possible to select combinations with different colors from the lower frame 23, sash lower frame 17, and other parts. Moreover, by making the support 53 detachable, it can be used only when necessary.

[0015] The structure of the opening / closing device described in claim 5 of the present invention is the structure of the opening / closing device described in claim 3, The support 53 is characterized in that it is detachably attached to the bottom wall portion 43.

[0016] In this opening / closing device structure, the support 53 can be considered as an option. That is, the structure of the opening / closing device allows the support 53 to be easily attached with screws or rivets, making it possible to retrofit it to the existing lower frame 23. Furthermore, the structure of the opening / closing device allows the support 53 to be easily attached and detached with screws or rivets. By making the support 53 detachable, replacement in case of damage or deterioration becomes easy. In addition, it is possible to select combinations with different colors for the lower frame 23, sash lower frame 17, and other parts. Moreover, by making the support 53 detachable, it can be used only when needed. It is also possible to combine multiple gap-filling upright pieces 55, each with a different color.

[0017] The structure of the opening / closing body device according to claim 6 of the present invention is the structure of the opening / closing body device according to claim 1 or 2, and a caution-inducing means having detection means is provided on the support body, which is characterized in that.

[0018] The structure of the opening / closing body device according to claim 7 of the present invention is the structure of the opening / closing body Device according to claim 3, and a caution-inducing means having detection means is provided on the support body, which is characterized in that.

[0019] In these structures of the opening / closing body device, by the caution-inducing means, at the opening 12 between the indoors and outdoors formed by the lower frame 23 and the sash lower frame 17, a person or a moving object passing through or approaching there can be detected by the detection means, and the person and the surroundings can be notified by sound, light, etc., that is, it becomes possible to prompt attention.

[0020] The structure of the opening / closing body device according to claim 8 of the present invention is the structure of the opening / closing body Device according to claim 4, and a caution-inducing means having detection means is provided on the support body, which is characterized in that.

[0021] The structure of the opening / closing body device according to claim 9 of the present invention is the structure of the opening / closing body Device according to claim 5, and a caution-inducing means having detection means is provided on the support body, which is characterized in that.

[0022] In these structures of the opening / closing body device, by the caution-inducing means, at the opening 12 between the indoors and outdoors formed by the lower frame 元素23 and the sash lower frame 17, a person or a moving object passing through or approaching there can be detected by the detection means, and the person and the surroundings can be notified by sound, light, etc., that is, it becomes possible to prompt attention. Also, in combination with the detachable support body 53, it becomes possible to change the combination of means for prompting attention according to the user, etc.

Effect of the Invention

[0023] According to the structure of the opening and closing device described in claim 1 of the present invention, the groove width in the indoor-outdoor direction of the recessed groove portion of the lower frame can be narrowed without obstructing the seating structure of the baseboard on the lower frame, thereby suppressing the wheels of the moving body from falling in. Furthermore, because the groove width of the lower frame is narrowed and the gap-filling upright piece is positioned at the same height between the upright piece and the fixed piece, the wheels are less likely to fall in when moving between indoors and outdoors, and the risk of passersby tripping over them can also be reduced.

[0024] According to the structure of the opening and closing device described in claim 2 of the present invention, the gap-filling upright piece can be erected and fixed in a nearly vertical direction on the rainwater guide surface that slopes downward toward the outdoors, and the load-bearing capacity of the gap-filling upright piece can be greatly increased.

[0025] According to the structure of the opening and closing device described in claim 3 of the present invention, the groove width of the lower frame in the indoor and outdoor direction can be further narrowed, making it less likely for the wheels of the moving body to fall in, and the durability of the support can also be increased.

[0026] According to the structure of the opening / closing device described in claim 4 of the present invention, the support can be attached and detached according to the use of the living space, and the versatility and added value can be increased by selecting different colors, designs, and different numbers of gap-filling upright pieces for the support.

[0027] According to the structure of the opening / closing device described in claim 5 of the present invention, the support can be attached and detached according to the use of the living space, and the versatility and added value can be increased by selecting different colors, designs, and different numbers of support for gap-filling upright pieces. Furthermore, it is possible to combine multiple gap-filling upright pieces, each with a different color.

[0028] According to the structure of the opening / closing device described in claim 6 and claim 7 of the present invention, the warning means can detect people or moving objects passing through or approaching the opening, which is the entrance / exit portion between the indoors and outdoors, composed of a lower frame or sash lower frame, using a detection means, and notify the person or those around them with sound or light, that is, to draw their attention.

[0029] According to the structure of the opening / closing device described in claims 8 and 9 of the present invention, the warning means can detect people or moving objects passing through or approaching the opening, which is the entrance / exit portion between the indoors and outdoors, composed of a lower frame or sash lower frame, using a detection means, and notify the person or those around them with sound, light, etc., that is, to draw their attention. Furthermore, by combining it with a detachable support, it becomes possible to change the combination of warning means, etc., according to the user. [Brief explanation of the drawing]

[0030] [Figure 1] This is a perspective view of a window section equipped with the structure of the opening / closing device according to this embodiment. [Figure 2] This is a side cross-sectional view of the main part of a shutter curtain, where the baseboard is seated on the bottom frame attached to the bottom frame of the window sash. [Figure 3] This is an enlarged view of the main part of Figure 2. [Figure 4] This is a disassembled side cross-sectional view of the lower frame before the support structure is attached. [Figure 5] This is a side cross-sectional view of the lower frame to which the support is attached. [Figure 6] (a) is a plan view of the lower frame, (b) is a cross-sectional view of the lower frame relating to a modified example, and (b) is a plan view of the lower frame relating to another modified example. [Figure 7] This is an explanatory diagram of a support according to a modified example 1 equipped with a positioning projection. [Figure 8] This is an explanatory diagram of a support according to modified example 2, in which a wide portion is provided at the upper edge of the gap-filling upright piece. [Figure 9] This is an explanatory diagram of a support according to modified example 3, which is equipped with multiple gap-filling upright pieces. [Figure 10] This is a diagram illustrating the operation of the wheels as they pass over the lower frame. [Modes for carrying out the invention]

[0031] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Figure 1 is a perspective view of a window section equipped with the structure of the opening / closing device according to this embodiment. The structure of the opening / closing device according to this embodiment applies to an opening / closing device 11 that is installed so as to surround the perimeter of a building's sash frame. Hereinafter, the opening / closing device 11 will also be referred to as a shutter device 11. The sash frame 14 is installed in the building structure to form an opening 12 that will become a window. The sash frame 14 has, for example, a pair of sash vertical frames that will become the door stop portion of a sliding sash window 15. The lower ends of the pair of sash vertical frames are connected by a sash lower frame 17.

[0032] The structure of the opening and closing device according to this embodiment is such that the main part is provided on the outdoor side, outside the sash lower frame 17, and includes a lower frame 23 that contacts the baseboard 21, which is the lowest end of the shutter curtain 19, which is an opening and closing body that moves up and down. The shutter device 11 has a storage box 25 attached above the lintel that is the upper part of the opening 12. The storage box 25 is a roughly rectangular parallelepiped shape that extends across the width of the opening 12. On both sides in the longitudinal direction of the storage box 25, a pair of outer frames 27 are attached that extend vertically and are fixed to the building structure and protrude from the outer wall 13. The outer frames 27 located on the left and right sides are provided with guide rails 29 on their opposing surfaces to guide both sides of the shutter curtain 19. The shutter device 11 is opened and closed on the outdoor side of the sash window 15 by raising and lowering the shutter curtain 19, which is guided by the guide rails 29.

[0033] A deck 31 is provided on the outside of the opening 12, that is, on the side opposite the sash lower frame 17, with the lower frame 23 of the shutter device 11 in between. In a residential building, by setting the interior floor surface 33 to be at approximately the same height as the deck 31 located outside the window (opening 12), the living space can be made to appear larger, and a sense of openness can be felt from inside the living space towards the deck 31 through the window.

[0034] Figure 2 is a side cross-sectional view of the main part of a shutter curtain 19, in which a baseboard 21 is seated on a lower frame 23 attached to a lower sash frame 17. Rails 35 are formed upright on the lower frame 17 of the sash window. For example, if there is a pair of sash windows 15 on the left and right, they are formed as a pair of parallel rails 35 spaced apart inward and outward. Two sliding sash windows 15 are mounted on each rail 35 so as to be able to move freely. The upper edges of the pair of rails 35 are at approximately the same height.

[0035] The baseboard 21, attached to the lowest end of the shutter curtain 19, sits on the lower frame 23 when the shutter curtain 19 descends and closes. The baseboard 21 consists of an upper half formed in the same strip shape as the slats that make up the shutter curtain 19, and a lower half that sits on the lower frame 23. The lower half has a drip edge 37 that hangs down overlapping the lower frame 23. The hanging end of the drip edge 37 fits into the gap provided between the deck 31 and the lower frame 23. The baseboard 21 also has an indoor side hanging plate 41 that hangs down spaced apart from the drip edge 37 on the indoor side, and in this embodiment, there are intermediate hanging plates 39 spaced apart between the drip edge 37 and the indoor side hanging plate 41. The lower end of the intermediate hanging plate 39 touches the lower frame 23. A cushioning material is provided at the lower end of this intermediate hanging plate 39 to absorb the impact when it sits on the lower frame 23. The baseboard 21 is integrally formed from aluminum profiles by extrusion molding, with these flashing boards 37, intermediate hanging boards 39, and indoor hanging boards 41 being molded together.

[0036] The lower frame 23 has a bottom wall portion 43 that extends further outward than the sash lower frame 17. The lower frame 23 also has an upright piece 45 that rises from the bottom wall portion 43 at the edge of the bottom wall portion 43 adjacent to the deck 31, and is at approximately the same height as the upper edge of the sash lower frame 17 and overlaps the flashing plate 37 on the indoor side, and a fixing piece 47 that rises from the bottom wall portion 43 at a position indoorward from the indoor hanging plate 41 and is fixed to the outer surface of the sash lower frame 17. The fixing piece 47 is fixed to the outer surface mounting portion 51 of the sash lower frame 17 from the outdoor side by fasteners 49 such as screws or rivets. The outer surface mounting portion 51 may have a fixing shape formed therein for holding the fixing piece 47.

[0037] A support 53 is attached to the bottom wall portion 43 of the lower frame 23 at approximately the center position between the intermediate hanging plate 39 and the indoor hanging plate 41 of the baseboard 21, in a position that does not interfere with these intermediate hanging plates 39 and indoor hanging plate 41. The support 53 has a gap-filling upright piece 55 whose upper edge is positioned at the same height as the upright piece 45. The support 53 is basically made of the same material as the lower frame 23 to match the appearance. In addition, the material should be made of a material that is weather-resistant and rust-resistant, taking into consideration the need to ensure strength and the effects of ultraviolet rays and rainwater. For this reason, it is preferable that the support 53 be made of aluminum, the same material as the lower frame 23.

[0038] Figure 3 is an enlarged view of the main part of Figure 2. The lower frame 23 has a rainwater guide surface 57 formed on its bottom wall portion 43 that slopes downward toward the outside, that is, from the fixing piece 47 toward the upright piece 45. The support body 53 is formed in a roughly L-shape with a fixing base 59 formed via an acute angle θa on a gap-filling upright piece 55 that stands upright in a roughly vertical direction. The gap-filling upright piece 55 is fixed by fasteners 49 such as screws or rivets, with the fixing base 59 parallel to the rainwater guide surface 57.

[0039] The structure of the opening and closing device is such that the support body 53 is fixed by fasteners 49, allowing it to be easily attached to the bottom wall portion 43 and to be detachably attached.

[0040] In the structure of the opening and closing mechanism, the upper edge of the sash lower frame 17, the upper edges of the pair of rails 35, and the interior floor surface 33 are at approximately the same height. Also, in the lower frame 23 of the shutter device 11, the upper surface 32 of the deck, the upper edge of the upright piece 45, and the upper edge of the gap-filling upright piece 55 are at approximately the same height. Furthermore, the deck upper surface 32, the upper edges of the upright piece 45, the upper edges of the gap-filling upright piece 55, the upper edge of the sash lower frame 17, the upper edges of the pair of rails 35, and the interior floor surface 33 are arranged on approximately the same horizontal plane. Here, "approximately the same plane" means that a step of a few millimeters is allowed so that the wheels 61 can pass through without obstruction when a mobile object such as a wheelchair passes over it.

[0041] In addition to wheelchairs, other examples of mobile devices include various wheeled items such as strollers, trolleys, carts, wagons, IV stands, stretchers, ride-on toys, and household appliances like vacuum cleaners.

[0042] Figure 4 is an exploded side cross-sectional view of the lower frame 23 before the support 53 is attached. In this embodiment, the lower frame 23 is formed in half from approximately the midpoint in the groove width direction as a rectangular tube portion 63 with a trapezoidal cross-section. The rectangular tube portion 63 constitutes part of the bottom wall portion 43. The upper surface of the rectangular tube portion 63 serves as a rainwater guide surface 57. A fin-shaped mounting portion 65 is formed on the rear surface (right end in the figure) of the rectangular tube portion 63, which engages with the outer mounting portion 51 of the sash lower frame 17. The lower frame 23 is formed with the ability to smoothly drain rainwater and to support the load of the seated shutter curtain 19 by integrally molding the rectangular tube portion 63 with the rainwater guide surface 57. The support 53 is fixed to the lower frame 23 by fasteners 49 for fixing the fixing base portion 59 passing through the hollow portion of the rectangular tube portion 63.

[0043] Furthermore, the bottom wall portion 43 of the lower frame 23 has a downward sloping portion 67 on its outer half. The downward sloping portion 67 constitutes part of the bottom wall portion 43. This downward sloping portion 67 guides rainwater that has flowed in via the rainwater guide surface 57 and guide rail 29 to the outer end of the bottom wall portion 43. The rainwater guided to the downward sloping portion 67 is drained to the outside through drainage ports provided at both ends of the lower frame 23.

[0044] Figure 5 is a side cross-sectional view of the lower frame 23 to which the support 53 is attached. When the support 53 is attached to the lower frame 23, the groove width W is reduced to less than half, effectively dividing it into two equal parts. For example, since the groove width W of the lower frame 23 is about 50 mm, taking into account the width of the upper edge of the gap-filling upright piece 55, the width Ws of each of the approximately two equal divided grooves can be reduced to about 25 mm or less. As a result, the structure of the opening and closing device can suppress the wheels 61 from falling into the lower frame 23 compared to when the support 53 is not attached, and there is no hindrance to passage.

[0045] Figure 6(a) is a plan view of the lower frame 23, (b) is a cross-sectional view of the lower frame 23 according to a modified example, and (b) is a plan view of the lower frame 23 according to another modified example. As shown in Figure 6(a), the support 53 is formed so that its overall length is slightly shorter than the overall length of the lower frame 23. As a result, the structure of the opening and closing mechanism can be configured such that by attaching the support 53 to the center of the lower frame 23, drainage sections 69 can be provided on both sides in the longitudinal direction where gap-filling upright pieces 55 are absent. Furthermore, as shown in Figure 6(b), the support 53 may have a drainage notch 71 in the center of the gap-filling upright piece 55. Furthermore, as shown in Figure 6(c), the support 53 may be divided into multiple sections along its longitudinal direction, leaving an intermediate drainage section 73 open, and attached to the lower frame 23. For example, in the configuration of the sliding sash window 15 described above, the sash window 15 can be opened by shifting it to either the left or right side, and the support 53 will be positioned in the open half of the window. These drainage sections 69, drainage notches 71, and intermediate drainage sections 73 are positioned where the wheels 61 of the moving body do not pass. In other words, they can be provided in the corners of the window when it is open, as the moving body does not approach these corners and the wheels 61 do not pass through them.

[0046] Figure 7 is an explanatory diagram of a support body 77 according to modified example 1, which is equipped with a positioning projection 75. The support body 77 used in the structure of the opening and closing device may be provided with a positioning projection 75 that hangs down from the gap-filling upright piece 55 below the fixed base 59, as shown in Figure 7(a). According to this modified example 1, as shown in Figure 7(b), the support body 77 can be easily positioned by placing the fixed base 59 on the rainwater guide surface 57 and bringing the positioning projection 75 into contact with the front surface 64 of the rectangular tube portion 63.

[0047] Figure 8 is an explanatory diagram of a support 81 according to modified example 2, in which a wide portion 79 is provided at the upper edge of the gap-filling upright piece 55. As shown in Figure 8(a), the support 81 used in the structure of the opening and closing device may have a wide portion 79 provided on the upper edge of the gap-filling upright piece 55 in addition to the positioning projection 75 described above. According to this modified example 2, as shown in Figure 8(b), the width Ws of each groove, which is divided into approximately two equal parts by attaching the support 81, can be made narrower than when there is no wide portion 79.

[0048] Figure 9 is an explanatory diagram of a support 85 according to modified example 3, which is equipped with multiple gap-filling upright pieces. The support 85 used in the structure of the opening and closing device may be configured to have multiple gap-filling upright pieces 55, as shown in Figure 9(a). For example, it may further include a gap-filling upright auxiliary piece 83 that is parallel to the gap-filling upright piece 55 and positioned between the indoor-side hanging plate 41 and the fixing piece 47, with its upper edge at the same height as the upright piece 45. According to this modified example 3, as shown in Figure 9(b), the groove width of the lower frame 23 in the indoor-outdoor direction can be further narrowed, making it less likely for the wheels 61 of the moving body to fall in, and the load from the wheels 91 can be distributed, thereby increasing the durability of the support 53.

[0049] Next, I will explain the function of the above-described configuration.

[0050] In the structure of the opening / closing device according to this embodiment, the lower frame 23 of the shutter device 11 is fixed to the outer surface on the outdoor side, which is the outside of the sash lower frame 17. The lower frame 23 has a bottom wall portion 43 that extends further outward than the sash lower frame 17 and is closer to the deck 31. The lower frame 23 has an upright piece 45 that rises from the bottom wall portion 43 and overlaps the flashing plate 37 of the baseboard 21 on the indoor side. The lower frame 23 also has a fixing piece 47 that rises from the bottom wall portion 43 at a position indoors from the indoor hanging plate 41 of the baseboard 21 and is fixed to the outer surface of the sash lower frame 17. In other words, the lower frame 23 has a U-shape with an upward opening, with an upright piece 45 and a fixing piece 47 rising upward on the front and rear (indoors and outdoors) sides of the bottom wall portion 43. The space between the upright piece 45 and the fixing piece 47 of the lower frame 23 is a groove that runs along the longitudinal direction.

[0051] The lower frame 23 is stopped (seaten) when the baseboard 21 of the shutter curtain 19 descending from above hits it. The baseboard 21 has a drip edge 37 at its lower end that overlaps and hangs down on the outside of the upright piece 45 of the lower frame 23. The baseboard 21 also has an intermediate hanging plate 39 that hangs down spaced apart from the drip edge 37 towards the indoor side, and an indoor hanging plate 41 that hangs down even further spaced apart towards the indoor side than the intermediate hanging plate 39. In other words, the lower half of the baseboard 21 has a roughly E-shape, with the drip edge 37, intermediate hanging plate 39, and indoor hanging plate 41 spaced apart in the indoor-outdoor direction from the outdoor side, and opening downwards.

[0052] A support 53 is attached to the bottom wall portion 43 at a position between the intermediate hanging plate 39 of the baseboard 21 and the fixing piece 47. The support 53 has a gap-filling upright piece 55 whose upper edge is positioned at the same height as the upright piece 45 at approximately the center position between the intermediate hanging plate 39 and the indoor hanging plate 41. This gap-filling upright piece 55 is positioned approximately in the center position between the intermediate hanging plate 39 and the indoor hanging plate 41 on the baseboard 21. At the same time, this gap-filling upright piece 55 is also positioned approximately in the center position in the inward-outward direction between the upright piece 45 and the fixing piece 47 on the lower frame 23.

[0053] Therefore, in the structure of the opening and closing device, the gap-filling upright piece 55 does not interfere with the intermediate hanging plate 39 and the indoor hanging plate 41, the support 53 is attached to the bottom wall 43, and the gap-filling upright piece 55 stands up from the support 53, so that the flashing plate 37, upright piece 45, intermediate hanging plate 39, gap-filling upright piece 55, indoor hanging plate 41, and fixing piece 47 fit together alternately from the outside in a rabbet structure. The rabbet structure can prevent wind and rain from easily entering, prevent light such as indoor lighting from leaking to the outside and light such as external light from entering the inside, and enhance security by making it difficult to insert prying tools (tools such as crowbars).

[0054] Figure 10 is an explanatory diagram of the operation when the wheels 61 pass over the lower frame 23. Furthermore, in the structure of the opening and closing mechanism, a gap-filling upright piece 55 is positioned approximately in the center between the upright piece 45 and the fixed piece 47 in the lower frame 23, thereby narrowing the groove width W in the conventional lower frame 23 to less than half the groove width Ws. As a result, the wheel 61, which would conventionally fall between the upright piece 45 and the fixed piece 47, can be supported by the upper edge of the gap-filling upright piece 55. Consequently, the groove width W in the indoor / outdoor direction of the lower frame 23 can be narrowed without hindering the seating structure of the baseboard 21 on the lower frame 23, thereby suppressing the wheel 61 from falling into the moving body.

[0055] Furthermore, in the structure of this opening and closing device, a fixed base 59 is formed on the gap-filling upright piece 55 of the support 53. The fixed base 59 is attached parallel to the rainwater guide surface 57 of the lower frame 23. The rainwater guide surface 57 is formed on the bottom wall portion 43 with a downward slope toward the outdoors. As a result, the lower frame 23 is able to drain rainwater that flows down from above onto the bottom wall portion 43 to the outdoors.

[0056] The gap-filling upright piece 55 is fixed to the rainwater guide surface 57 via the fixing base 59. In other words, the support 53 is fixed to an inclined surface that slopes downward toward the outdoors. Here, the support 53 is formed in a roughly L-shape by connecting the fixing base 59 and the gap-filling upright piece 55 via an acute angle θa, so that the gap-filling upright piece 55 can be erected almost vertically. As a result, when a load is applied from the wheel 61, the gap-filling upright piece 55 can support the load from the wheel 61 with a buckling load that is greater than the bending load that deforms in the thickness direction of the plate. As a result, the gap-filling upright piece 55 can be erected and fixed almost vertically on the rainwater guide surface 57 that slopes downward toward the outdoors, and the load-bearing capacity of the gap-filling upright piece 55 can be greatly increased.

[0057] Furthermore, in the structure of this opening and closing device, the flashing plate 37, upright piece 45, intermediate hanging plate 39, gap-filling upright piece 55, indoor hanging plate 41, and fixing piece 47 are fitted together alternately from the outdoor side, and an interlocking structure can be further formed by placing a gap-filling upright auxiliary piece 83 that rises from the support 53 between the indoor hanging plate 41 and the fixing piece 47.

[0058] This allows for a further reduction in the groove width of the lower frame 23 in the indoor and outdoor directions. Furthermore, it enables the wheels 61 to be supported at more points, thus distributing the load. In other words, it reduces the load on the gap-filling upright pieces 55, increasing their durability. Additionally, the increased number of fitting points provides a more advantageous structure in terms of preventing wind and rain from entering, light leakage and intrusion, and security. As a result, the groove width of the lower frame 23 in the indoor and outdoor directions can be further reduced, making the wheels 61 less likely to fall into the moving body, while also increasing the durability of the support 53.

[0059] Furthermore, in the structure of this opening / closing device, the support 53 can be considered as an option. That is, the structure of the opening / closing device can be designed so that the support 53 can be easily attached and detached using fasteners 49 such as screws or rivets. By making the support 53 detachable, it becomes easy to replace it in case of damage or deterioration. In addition, it becomes possible to select combinations of different colors, etc. Also, by making the support 53 detachable, it can be used only when needed. As a result, the support 53 can be attached and detached according to the use of the living space, and the versatility and added value can be increased by selecting different colors, designs, and different numbers of gap-filling upright pieces 55 for the support 53.

[0060] In addition, the structure of the opening / closing device can also be configured to include a warning means, although not shown in the figure, attached to the support body 53. The warning means is configured to include a detection means, which is a variety of sensors that detect people or moving objects passing through the support body 53, or people or moving objects approaching the support body 53. The sensors are weight sensors placed on or around the support body 53, or non-contact area sensors, 3D sensors, pyroelectric sensors, optical sensors, ToF sensors, etc., which detect the entry and exit of people or moving objects, such as from indoors to outdoors or from outdoors to indoors. The warning means also has a notification unit that provides notification in response to signals from the various sensors, which is a sound-emitting device or a light-emitting device that emits sound or light. The sound-emitting device is, for example, one that emits warning sounds such as alarm sounds or buzzer sounds, or plays chimes or melodies. Furthermore, the light-emitting device may be a lamp that emits light itself by incorporating light-emitting elements such as LEDs into any of the following parts, including the support 53, lower frame 23, sash lower frame 17, sash frame 14, and outer frame 27, or at least one of these parts, or a light that shines brightly from any position, such as the interior ceiling, toward the sash frame 14 or the support 53. These sounds and lights may be intermittent or continuous, that is, they may draw attention by gradually increasing the volume of sound, changing from intermittent to continuous sound, gradually increasing the amount of light, changing the light from flashing to steady, or changing the color of the emitted light.

[0061] Furthermore, with such a warning mechanism, sensors can detect people or moving objects passing through or approaching the opening 12, which is an entrance / exit area such as the sash frame 14 or the lower frame 23, and these people or moving objects can be notified of the opening 12 by sound or light.

[0062] Furthermore, the notification unit may also notify people located away from the opening 12, or others outside, that there are people or moving objects passing through or approaching the opening 12. The notification unit may emit vibrations in addition to sound and light. For example, a portable information terminal carried by a person passing through may vibrate to indicate that it is the opening 12 and draw attention to it.

[0063] Having such a means of alerting people makes it possible for people passing through or approaching the opening 12 to be more conscious of their surroundings when passing through the opening 12.

[0064] Furthermore, by combining the aforementioned detachable configuration with the warning means, it becomes possible to change the combination of warning means according to the user.

[0065] Accordingly, according to the structure of the opening and closing device of this embodiment, the width of the concave groove of the lower frame 23 in the indoor and outdoor direction is narrowed without obstructing the seating structure of the baseboard 21 on the lower frame 23, and the support 53 is positioned so that the gap-filling upright piece 55 is at the same height between the upright piece 45 and the fixing piece 47. As a result, the upper edges of each piece 55, 45, and 47 are aligned in the indoor and outdoor direction, preventing the wheels 61 of a mobile object such as a wheelchair from falling in, and also preventing people passing by from getting their feet caught. [Explanation of Symbols]

[0066] 11…Opening / closing mechanism (shutter) 13…Exterior walls 17... Window frame bottom 19…Opening / closing mechanism (shutter curtain) 21… Skirting board 23…Bottom frame 37…Draining board 39…Intermediate hanging plate 41…Indoor side hanging board 43...Bottom wall 45...Standing piece 47...Fixed piece 53...Support 55... Gap-filling upright pieces 57…Rainwater guiding surface 59…Fixed base 77...Support 81...Support 83... Gap-filling standing support piece 85...Support

Claims

1. The structure of an opening / closing device, which is provided on the outside of the lower frame of a sash attached to the exterior wall of a building, and has a lower frame that contacts the baseboard which is the lowest end of the opening / closing body that moves up and down, The baseboard comprises at least a flashing that hangs down overlapping the lower frame outward, and an indoor-side hanging plate that hangs down spaced apart from the flashing towards the indoor side. The lower frame has a bottom wall portion that extends outward from the sash lower frame, an upright piece that rises from the bottom wall portion and is at approximately the same height as the upper edge of the sash lower frame and overlaps the flashing plate on the indoor side, and a fixing piece that rises from the bottom wall portion at a position indoors from the indoor hanging plate and is fixed to the outer surface of the sash lower frame. The structure of the opening and closing device is characterized in that a support is attached to the bottom wall portion, the support having a gap-filling upright piece positioned at approximately the center of the space between the upright piece and the fixing piece, with its upper edge positioned at the same height as the upright piece, so as not to interfere with the indoor-side hanging plate.

2. A rainwater guide surface is formed on the bottom wall portion to which the support is attached, sloping downward toward the outdoor side. The structure of the opening / closing device according to claim 1, characterized in that the support has a fixed base formed therein that is connected to the gap-filling upright piece which stands upright in a substantially vertical direction, via an acute corner, parallel to the rainwater guide surface.

3. The structure of the opening / closing device according to claim 1 or 2, characterized in that the support is composed of a plurality of gap-filling upright pieces, each arranged parallel to the others and positioned so as not to interfere with the indoor-side hanging plate between the upright pieces and the fixing piece, and each upper edge is positioned at the same height as the upright pieces.

4. The structure of the opening / closing device according to claim 1 or 2, characterized in that the support is detachably attached to the bottom wall portion.

5. The structure of the opening / closing device according to claim 3, characterized in that the support is detachably attached to the bottom wall portion.

6. The structure of the opening / closing device according to claim 1 or 2, characterized in that the support is provided with a warning means equipped with a detection means.

7. The structure of the opening / closing device according to claim 3, characterized in that the support is provided with a warning means equipped with a detection means.

8. The structure of the opening / closing device according to claim 4, characterized in that the support is provided with a warning means equipped with a detection means.

9. The structure of the opening / closing device according to claim 5, characterized in that the support is provided with a warning means equipped with a detection means.

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