Structure of the seat plate for opening and closing mechanism and seat plate cap
The seat plate structure with overlapping cushioning materials addresses gaps between the seat board and floor, improving aesthetic appeal and safety by sealing light, insects, and preventing fire passage.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- BUNKA SHUTTER CO LTD
- Filing Date
- 2022-11-28
- Publication Date
- 2026-06-18
AI Technical Summary
Existing seat board structures suffer from gaps forming between the seat board and the floor due to deformation of cushioning materials, leading to issues such as light leakage, insect infestation, and potential fire passage, which compromise aesthetic appeal and safety.
A seat plate structure with a seat plate cap and cushioning materials that extend beyond the seat plate to fill gaps, using materials that overlap and deform to maintain a sealed state, incorporating fire-resistant properties to prevent flame passage.
The structure effectively seals gaps to prevent light leakage, insect intrusion, and flame passage, enhancing design and safety by ensuring a continuous, airtight, and fire-resistant closure.
Smart Images
Figure 0007875792000001 
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Abstract
Description
Technical Field
[0001] The present invention relates to a seat plate structure for an opening / closing body and a seat plate cap.
Background Art
[0002] An opening / closing body such as a shutter curtain, which connects a seat plate member extending in the lateral width direction to the closing direction end side of the opening / closing body main body, and guide rails that surround both end edge portions in the lateral width direction of the opening / closing body in a concave shape and guide them in the vertical direction that is the opening / closing direction. In an opening / closing device configured such that when the opening / closing body is closed, the seat plate member contacts the floor surface, which is the contact target portion on the closing direction side, the seat plate member includes a seat plate main body portion extending in the lateral width direction between the left and right guide rails, and a seat plate cap connected to the width direction end side of the seat plate main body portion (Patent Document 1 below). This seat plate cap is attached to the width direction end of the seat plate main body portion, extends into the concave portion of the guide rail, and has a closing portion that closes the gap between the lower end portion of the opening / closing body main body and the floor surface when fully closed. The closing portion has a fire-resistant shielding core portion shaped to substantially close this gap, and a covering portion that covers at least the portion of the shielding core portion closer to the closing direction and is formed of a material softer than the shielding core portion.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] Some seat board structures include a seat board cushioning material on the underside of the seat board. Located between the underside of the seat board and the floor, the cushioning material deforms when the seat board touches the floor, preventing gaps from forming. Because this cushioning material changes the height of the seat board, a gap will form between the seat board cap and the floor when the seat board touches the ground. In other words, since the closing section extends into the guide rail from the widthwise end of the seat board body, there will be a gap below the closing section equal to the height of the seat board cushioning material. In the structure of seat boards for opening and closing mechanisms, such gaps can lead to problems such as reduced aesthetic appeal due to light leakage and insect infestation. Furthermore, in the event of a fire, flames may pass through the gap to the inside and outside of the opening and closing mechanism, i.e., from outside to inside or inside to outside. For this reason, there is a need for a seat board structure for opening and closing mechanisms that can close the gap between the seat board and the floor by following the height of the seat board when it touches the ground.
[0005] The present invention has been made in view of the above circumstances, and its purpose is to provide a base plate structure and base plate cap for an opening / closing body that can improve the design by shielding against light leakage when the opening / closing body is grounded, improve insect-proofing by sealing gaps, and can also be used as a fire-resistant device. [Means for solving the problem]
[0006] 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 body seat plate 91 according to claim 1 of the present invention is a structure of an opening / closing body seat plate 91 in which a long seat plate 19 is attached between the guide rails 45, which are positioned between the guide rails 45 and are located at the lowest end of an opening / closing body 17, which is guided to open and close the opening 13 by inserting the edges on both sides of the slits 43 of a pair of guide rails 45 that extend vertically with slits 43 facing each other on both sides in the width direction of the opening 13, and a seat plate cushioning material 87 is attached to the lower surface of the horizontal portion 79 of the seat plate 19 in the longitudinal direction, The seat plate 19 is equipped with seat plate caps 89 attached to both ends in the longitudinal direction, The aforementioned seat plate cap 89 is The end portion 101 is fitted over the longitudinal end 80 of the horizontal portion 79, The slit insertion portion 103 is inserted into the aforementioned slit 43, A cap cushioning material 105 is provided extending from the slit insertion portion 103 to the end attachment portion 101, hanging down to the same length as the seat cushioning material 87, and extending further towards the center than the end of the seat cushioning material 87, overlapping with the seat cushioning material 87 in the indoor / outdoor direction, It is characterized by having the following features.
[0007] In the structure of this opening / closing mechanism seat plate 91, a seat plate 19 that is long in the width direction of the opening 13 is attached to the lowest end of the opening / closing mechanism 17. The seat plate 19 has a cross-sectional shape perpendicular to its longitudinal direction that is roughly an inverted T shape with a horizontal part 79 and a vertical part (slat fixing part 69) standing upright, so its longitudinal end 80 cannot be fitted into the slit 43 of the guide rail 45. Since the metal seat plate 19 may vibrate and generate noise when raised and lowered if left outside the guide rail 45, resin seat plate caps 89 are attached to both longitudinal ends. The seat plate 19 is provided with a seat plate cushioning material 87 to absorb the gap between it and the floor surface 21. The seat plate cushioning material 87 is attached to the underside of the horizontal portion 79 of the seat plate 19 that faces the floor surface 21, extending along the longitudinal direction of the seat plate 19. The length of the seat plate cushioning material 87 is such that both ends in the longitudinal direction approximately coincide with both ends in the longitudinal direction of the seat plate 19. Here, the longitudinal ends of the seat plate 19 to which the seat plate cap 89 is attached require clearance between them and the guide rail 45 in order to ensure smooth raising and lowering. As a result, a gap is created between the seat plate cushioning material 87, which ends at the longitudinal end 80 of the seat plate 19, and the guide rail 45 where the seat plate cushioning material 87 is absent. In addition, in the case of the seat plate 19 with the seat plate cushioning material, the seat plate cushioning material 87 deforms when it touches the ground, changing the height of the seat plate 19. Depending on the degree of deformation of the seat plate cushioning material 87 when the seat plate 19 touches the ground, a gap is likely to occur between the lower surface of the seat plate cap 89 and the floor surface 21. Therefore, in the structure of the opening / closing seat plate 91, a slit insertion portion 103 is provided in the end attachment portion 101 that covers the longitudinal end 80 of the horizontal portion 79 of the seat plate cap 89, and is inserted into the slit 43. A cap cushioning material 105 is provided in both the slit insertion portion 103 and the end attachment portion 101, and is of the same length as the seat plate cushioning material 87 and hangs down at the same hanging position. This cap cushioning material 105 extends from inside the guide rail 45 toward the center of the opening 13 beyond the end of the seat plate cushioning material 87 and is provided overlapping with the seat plate cushioning material 87 in the indoor / outdoor direction. The cap cushioning material 105 hangs down at the same hanging position as the seat cushioning material 87, meaning its hanging length is set to be the same. Therefore, when the seat cushioning material 87 touches the floor surface 21, the cap cushioning material 105 also touches the floor surface 21. In other words, the cap cushioning material 105 can follow the height of the seat 19 and close the gap. Furthermore, since the cap cushioning material 105 extends from inside the guide rail 45 towards the center of the opening 13, beyond the end of the seat cushioning material 87, in the width direction of the opening 13, the seat cushioning material 87 and the cap cushioning material 105 are arranged continuously without interruption from the inside of one guide rail 45 to the inside of the other guide rail 45. If the seat cushioning material 87 and the cap cushioning material 105 are staggered in the continuous section, it is not necessary to create a sealed state between the inside and outside. As a result, there is no gap between the opening / closing body 17 and the floor surface 21 that runs linearly in the indoor / outdoor direction of the opening / closing body 17. Therefore, light will not leak in and out through the gaps, and the aesthetic appeal will not be diminished due to visible light leakage. In addition, the seat cushioning material 87 and the cap cushioning material 105 are staggered at the continuous section, which also helps to suppress insect intrusion. Furthermore, because the seat cushioning material 87 and the cap cushioning material 105 are staggered, and by using highly fire-resistant materials, it is also possible to suppress flames from a fire passing through the gaps to the inside and outside of the opening / closing body 17.
[0008] The structure of the seat plate 91 for opening and closing mechanism described in claim 2 of the present invention is the structure of the seat plate 91 for opening and closing mechanism described in claim 1, The seat cushioning material 87 and the cap cushioning material 105 are characterized in that they are formed having a hollow portion 97.
[0009] In the structure of this opening / closing seat plate 91, the seat plate cushioning material 87 and the cap cushioning material 105 are formed with a hollow portion 97. The seat plate cushioning material 87 and the cap cushioning material 105 consist of a mounting portion 93 that is attached to the seat plate 19 and the seat plate cap 89, and a cushioning material body 95 that hangs down from the mounting portion 93 toward the floor surface 21. This cushioning material body 95 is a deformable portion. The cushioning material body 95 is formed in a tubular shape along the longitudinal direction of the seat plate 19. Therefore, the inside of the cushioning material body 95 is the hollow portion 97 described above. The cushioning material body 95 has a cross-sectional shape perpendicular to its longitudinal direction, for example, a vertically elongated, roughly oval shape. Since the thickness of the cushioning material body 95 is almost uniform, the hollow portion 97 also has a vertically elongated, roughly oval shape. When the seat plate 19 descends and is compressed between it and the floor surface 21, the cushioning material body 95 deforms in a direction that causes it to bulge out on both the outdoor and indoor sides and flatten out. In other words, the seat plate cushioning material 87 and the cap cushioning material 105 are deformed so that the cushioning material body 95 closes any gaps that may occur due to the slope of the floor surface 21, etc.
[0010] The structure of the opening / closing seat plate 91 according to claim 3 of the present invention is the structure of the opening / closing seat plate 91 according to claim 1, The cap cushioning material 105 is characterized by being mohair.
[0011] In the structure of this opening / closing seat plate 91, the cap cushioning material 105 is, for example, mohair used in building materials, so-called joinery mohair. Mohair has a structure in which synthetic fibers such as polypropylene fibers or nylon fibers are implanted into a strip material. In the cap cushioning material 105 using mohair, many short fibers of about 15 to 20 mm are implanted, and the flexibility of the short fibers themselves allows for deformation and recovery. Since many short fibers stand up at high density, the light-shielding properties of the cap cushioning material 105 can be enhanced.
[0012] The structure of the opening / closing seat plate 91 according to claim 4 of the present invention is the structure of the opening / closing seat plate 91 according to any one of claims 1 to 3, The extension portion 121 of the cap cushioning material 105 is characterized by being positioned between a pair of parallel seat plate cushioning materials 87.
[0013] In the structure of this opening / closing seat plate 91, a pair of parallel seat plate cushioning materials 87 are provided on the lower surface of the horizontal section 79. That is, the seat plate cushioning materials 87 are provided in a double layer in the indoor / outdoor direction. The cap cushioning material 105 extends from within the guide rail 45 and fits between the pair of seat plate cushioning materials 87, which terminate at the longitudinal end 80 of the seat plate 19. The extended end of the cap cushioning material 105 is sandwiched between the pair of seat plate cushioning materials 87 and is positioned in a partially parallel state. That is, it forms an interlocking shape. As a result, compared to the case where there is only one seat plate cushioning material 87, there are two overlapping sections, which improves light shielding in the overlapping section and also improves a certain degree of airtightness and watertightness.
[0014] The seat plate cap 89 according to claim 5 of the present invention is a seat plate cap 89 attached to the lowermost end of an opening / closing body 17, which is located between guide rails and extends vertically with slits 43 facing each other on both sides in the width direction of the opening 13, and in which the edges on both sides of the opening 13 are inserted into the slits 43, and the opening and closing of the opening 13 is guided, and a long seat plate 19 is attached to the lower surface of the horizontal portion 79 of the seat plate 19 in the longitudinal direction, wherein the seat plate cap 89 is attached to both ends in the longitudinal direction of the seat plate 19, The end attachment portion 101 is fitted over the longitudinal end 80 of the horizontal portion 79, the slit insertion portion 103 is inserted into the slit 43, and the cap cushioning material 105 is provided extending from the slit insertion portion 103 to the end attachment portion 101, hanging down to the same length as the seat cushioning material 87, and extending towards the center beyond the end of the seat cushioning material 87, overlapping with the seat cushioning material 87 in the indoor / outdoor direction. It is characterized by having the following features.
[0015] In this seat plate cap 89, the object to which it is attached is the seat plate 91 for the opening / closing mechanism. In the structure of the seat plate 91 for the opening / closing mechanism, a seat plate 19 that is long in the width direction of the opening 13 is attached to the lowest end of the opening / closing mechanism 17. The seat plate 19 has a cross-sectional shape perpendicular to the longitudinal direction that is roughly an inverted T shape with a horizontal part 79 and a vertical part (slat fixing part 69) standing upright, so the longitudinal end 80 cannot be fitted into the slit 43 of the guide rail 45. Since the metal seat plate 19 may vibrate and generate noise when raised and lowered if left outside the guide rail 45, resin seat plate caps 89 are attached to both ends in the longitudinal direction. The seat plate 19 is provided with a seat plate cushioning material 87 to absorb the gap between it and the floor surface 21. The seat plate cushioning material 87 is attached to the underside of the horizontal portion 79 of the seat plate 19 that faces the floor surface 21, extending along the longitudinal direction of the seat plate 19. The length of the seat plate cushioning material 87 is such that both ends in the longitudinal direction approximately coincide with both ends in the longitudinal direction of the seat plate 19. Here, the longitudinal ends of the seat plate 19 to which the seat plate cap 89 is attached require clearance between them and the guide rail 45 in order to ensure smooth raising and lowering. As a result, a gap is created between the seat plate cushioning material 87, which ends at the longitudinal end 80 of the seat plate 19, and the guide rail 45 where the seat plate cushioning material 87 is absent. In addition, in the case of the seat plate 19 with the seat plate cushioning material, the seat plate cushioning material 87 deforms when it touches the ground, changing the height of the seat plate 19. Depending on the degree of deformation of the seat plate cushioning material 87 when the seat plate 19 touches the ground, a gap is likely to occur between the lower surface of the seat plate cap 89 and the floor surface 21. Therefore, in the seat plate cap 89, a slit insertion portion 103 is provided in the end attachment portion 101 that is fitted over the longitudinal end portion 80 of the horizontal portion 79, and which is inserted into the slit 43. A cap cushioning material 105 is provided in both the slit insertion portion 103 and the end attachment portion 101, hanging down to the same length as the seat plate cushioning material 87. This cap cushioning material 105 extends from inside the guide rail towards the center of the opening 13 beyond the end of the seat plate cushioning material 87 and is provided overlapping the seat plate cushioning material 87 in the indoor / outdoor direction. The cap buffer material 105 has the same length as the seat plate buffer material 87 and hangs down at the same hanging position. Therefore, if the seat plate buffer material 87 touches the floor surface 21, the cap buffer material 105 will also touch the floor surface 21 in the same manner. That is, the cap buffer material 105 can follow the height of the seat plate 19 and fill the gap. Also, since the cap buffer material 105 extends from within the guide rail 45 to the center side of the opening 13 rather than the end of the seat plate buffer material 87, in the width direction of the opening 13, the seat plate buffer material 87 and the cap buffer material 105 will be continuously arranged without interruption. If the seat plate buffer material 87 and the cap buffer material 105 alternate at the continuous part, it is not necessary to seal the inside and outside of the building. As a result, the gap that linearly penetrates in the inside-outside direction of the opening / closing body 17 will not be formed between the opening / closing body 17 and the floor surface 21. Therefore, light will not pass through the gap and leak to the inside and outside of the building, and the degradation of the design due to the visibility of the leaked light will not occur. Also, at the continuous part of the seat plate buffer material 87 and the cap buffer material 105, since they alternate, the intrusion of insects can be suppressed. Furthermore, since the seat plate buffer material 87 and the cap buffer material 105 alternate, by using a highly fire-resistant material, it is possible to suppress the passage of flames through the gap to the inside and outside of the opening / closing body 17.
[0016] The seat plate cap 89 according to claim 6 of the present invention is the seat plate cap 89 according to claim 5, and [[ID= seven]] it is characterized in that the seat plate buffer material 87 and the cap buffer material 105 are formed with a hollow portion 97.
[0017] In this seat plate cap 89, the action is the same as that of claim 2.
[0018] The seat plate cap 89 according to claim 7 of the present invention is the seat plate cap 89 according to claim 5, and it is characterized in that the cap buffer material 105 is mohair.
[0019] In this seat plate cap 89, the action is the same as that of claim 3.
[0020] The seat cap 89 according to claim 8 of the present invention is the seat cap 89 according to any one of claims 5 to 7, The extension portion 121 of the cap cushioning material 105 is characterized by being positioned between a pair of parallel seat plate cushioning materials 87.
[0021] With this seat cap 89, the function is the same as in claim 4. [Effects of the Invention]
[0022] According to the structure of the base plate for the opening / closing body described in claim 1 of the present invention, it is possible to improve the design by shielding against light leakage when the opening / closing body is grounded, improve insect-proofing by sealing gaps, and also enable it to be used as a fire-resistant device.
[0023] According to the structure of the seat plate for the opening / closing body described in claim 2 of the present invention, when the opening / closing body is closed, the deformation direction of the seat plate cushioning material and the cap cushioning material can be controlled so that they bulge in the indoor / outdoor direction, thereby improving the adhesion of the cushioning material to the floor surface.
[0024] According to the structure of the opening / closing seat plate described in claim 3 of the present invention, deformation and resilience according to the size of the gap can be ensured in the cap cushioning material, improving airtightness and watertightness, and suppressing light leakage.
[0025] According to the structure of the opening / closing mechanism seat plate described in claim 4 of the present invention, the extended portion of the cap cushioning material fits between the pair of seat plate cushioning materials, allowing for an interlocking structure, which makes it less likely for light leakage and insect damage to occur.
[0026] According to the seat plate cap described in claim 5 of the present invention, by simply attaching it to the longitudinal end of the seat plate, it is possible to improve the design by shielding the light leakage when the opening and closing body is grounded, improve insect-proofing by sealing the gap, and also enable it to be used as a fire protection device.
[0027] According to the seat cap described in claim 6 of the present invention, the same effect as in claim 2 can be obtained.
[0028] According to the seat cap described in claim 7 of the present invention, the same effect as in claim 3 can be obtained.
[0029] According to the seat cap described in claim 8 of the present invention, the same effect as in claim 4 can be obtained. [Brief explanation of the drawing]
[0030] [Figure 1] This is a front view of a shutter device equipped with the structure of the opening / closing base plate according to this embodiment. [Figure 2] This is a front view of the main part of the opening / closing mechanism, specifically one end at the lowest point of the mechanism that is in contact with the floor, as seen from inside the building. [Figure 3] This is a cross-sectional view AA in Figure 2. [Figure 4] This is a side view of the lowest key part of the opening / closing mechanism. [Figure 5] This is a side view of the lowest part of the opening / closing mechanism, showing the deformation state of the seat cushioning material. [Figure 6] This is a perspective view of the seat cap. [Figure 7] This is an exploded perspective view showing the seat cap before it is attached to the seat. [Figure 8] Figure 2 is a cross-sectional view of BB. [Figure 9] This is a perspective view of a modified seat plate cap in which the cap cushioning material is mohair. [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 front view of a shutter device 11 equipped with the structure of the opening / closing base plate according to this embodiment. The structure of the base plate for the opening / closing body according to this embodiment can be suitably used in a shutter device 11 that opens and closes an opening 13 of a structure using an opening / closing body 17. The opening / closing body can be a general shutter curtain 17 made by connecting multiple steel slats 15, or a curtain made by connecting panel materials. The shutter curtain 17 closes the opening 13 when the base plate 19 touches the floor surface 21.
[0032] The shutter device 11 is fixed to one wall surface 27 (see Figure 3) of the indoor 23 (see Figure 3) or outdoor 25 (see Figure 3) of a structure having an opening 13. In this embodiment, the shutter device 11 is attached to the wall surface 27 of the indoor 23. The shutter device 11 is assembled such that a shutter storage section 31 is stretched across a pair of left and right brackets 29 fixed to the wall surface 27. The shutter storage section 31 houses a winding shaft 35 that is rotatable around one shaft 33 supported by the bracket 29 and winds up the shutter curtain 17, an opening / closing mechanism 39 that rotates the other shaft head 37 of the winding shaft 35 to rotate the winding shaft 35 in forward and reverse directions, and a control unit 41 that drives and controls the opening / closing mechanism 39.
[0033] The opening / closing mechanism 39 drives the winding shaft 35 by adjusting the rotational speed and torque of the electric motor using a gear mechanism. The rotation of the electric motor is transmitted to the winding shaft 35 via a chain and sprocket. The control unit 41 is an electronic circuit equipped with a CPU. The control unit 41 is connected to a signal generating device (obstacle detection sensor) (not shown) and a signal transmission member (signal wire), for example, located facing the opening 13. The obstacle detection sensor is a non-contact sensor that detects obstacles present in the direction of movement of the shutter curtain 17, such as a photoelectric sensor or a photoelectric conversion element sensor. The control unit 41 processes signals from the obstacle detection sensor and operating switches (not shown), and controls the opening / closing mechanism 39 according to the processing results.
[0034] The shutter curtain 17 has multiple slats 15 formed in a horizontal plate shape, connected in the height direction, and a long base plate 19 attached to the lowest end along the longitudinal direction of the slats 15. The shutter curtain 17 is guided to open and close the opening 13 by inserting its edges on both sides into the slits 43 (see Figure 3) of a pair of guide rails 45 that extend vertically with slits 43 (see Figure 3) facing each other on both sides in the width direction of the opening 13. The base plate 19 is not inserted into the guide rails 45, but is located between the guide rails 45.
[0035] Figure 2 is a front view of the main part of the opening / closing mechanism 17, which is in contact with the floor surface 21, as seen from inside the building 23, showing one end of the lowest part. The shutter curtain 17 descends as its edges on both sides are guided by the guide rails 45, and when it closes the opening 13, the base plate 19 touches the floor surface 21. Windproof hooks 47 are attached to both ends of the slats 15 of the shutter curtain 17, which are arranged at predetermined intervals.
[0036] Figure 3 is a cross-sectional view of AA in Figure 2. The windproof hook 47 is prevented from coming off the guide rail 45 by engaging its constriction with a retaining rail portion 49 provided on the inside of the guide rail 45. The guide rail 45 is fixed to the wall surface 27 via a mounting frame 51. The wall surface 27 of the building structure 53 is covered by a finishing wall 55. A housing frame 61, consisting of a housing portion 57 and a cover 59, is fixed to the side of the guide rail 45 opposite to the mounting frame 51.
[0037] Figure 4 is a side view of the main part at the lowest end of the opening / closing body 17. The shutter curtain 17 is constructed by engaging slats 15 of the same cross-sectional shape vertically. Each slat 15 has an upper engaging portion 63 on its upper edge and a lower engaging portion 65 on its lower edge. The slats 15 are connected by engaging the upper engaging portion 63 of the lower slat 15 with the lower engaging portion 65 of the upper slat 15.
[0038] A connecting plate 67 is attached to the lowest end of the shutter curtain 17, which is the opening and closing mechanism. The connecting plate 67 is formed by bending sheet metal, and includes a slat fixing portion 69 and a concave groove portion 71. The connecting plate 67 is made of a fire-resistant material such as steel, for example, stainless steel. The connecting plate 67 is formed along the longitudinal direction of the slat 15 and is approximately the same length as the slat 15. The slat fixing portion 69 is fixed to the indoor side surface of the lowest slat 15 by fixing means. The fixing means consists of a screw 73 that penetrates from the outside 25 of the shutter curtain 17 and a cap nut 75 that is screwed onto the penetrating end of the screw 73. The connecting plate 67 is fixed to the slat 15 at multiple locations along its longitudinal direction by the slat fixing portion 69.
[0039] The seat plate 19 has a cross-sectional shape that is approximately an inverted T shape, perpendicular to the longitudinal direction of the slats 15. The seat plate 19 is manufactured by aluminum extrusion molding. The aluminum seat plate 19 can be obtained as a lightweight, high-strength, long profile of any length with a complex cross-sectional shape formed with high precision. The seat plate 19 has a fixing piece 77 at its upper end, which is fixed to the back surface of the concave groove 71 on the indoor side of the connecting plate 67. The lower end of the fixing piece 77 is connected to a horizontal section 79 (see Figure 3) that is parallel to the floor surface 21. The horizontal section 79 has an outdoor horizontal section 81 on the outdoor side of the fixing piece 77 and an indoor horizontal section 83 on the indoor side of the fixing piece 77.
[0040] The seat plate 19 has a pair of mounting grooves 85 (see Figure 7) formed on the lower surface of the horizontal section 79, extending in the longitudinal direction of the seat plate 19. The pair of mounting grooves 85 are open, hollow passages. A seat plate cushioning material 87 is fitted into each mounting groove 85, which is sandwiched between the seat plate 19 and the floor surface 21 when the seat plate 19 lands and elastically deforms in the compression direction. The seat plate 19 is attached to the lower surface of the horizontal section 79 in the longitudinal direction. Seat plate caps 89 are fitted to each of the longitudinal ends of the seat plate 19.
[0041] The connecting plate 67, the seat plate 19, and the seat plate cap 89 constitute the seat plate 91 for opening and closing.
[0042] The seat cushioning material 87 is formed by molding the mounting portion 93 and the cushioning material body 95 in a continuous manner. The cushioning material body 95 of the seat cushioning material 87 is formed to be elastically deformable. The seat cushioning material 87 is made of a flame-retardant material, preferably a resin or rubber material equivalent to grade V-0. The cushioning material body 95 has a cross-sectional shape perpendicular to the longitudinal direction that is a vertically elongated, approximately oblong shape. The seat cushioning material 87 is formed in a tubular shape of the same length along the longitudinal direction of the seat 19. Therefore, the cushioning material body 95 has a hollow portion 97.
[0043] Since the cushioning material body 95 of the seat cushioning material 87 has a nearly uniform thickness, the hollow portion 97 also has a vertically elongated, roughly oval shape. Multiple parallel small grooves 99 (see Figure 5) are formed on the inner surface of the hollow portion 97 to promote deformation of the cushioning material body 95. The small grooves 99 are formed to extend continuously in the longitudinal direction of the cushioning material body 95. The small grooves 99 are provided in a total of four places, for example, at both ends of the diameter of the upper and lower semicircular portions of the vertically elongated oval hollow portion 97.
[0044] Figure 5 is a side view of the lowest part of the opening / closing mechanism 17, showing the deformation state of the seat cushioning material 87. When the seat plate 19 descends and is compressed between the cushioning material body 95 and the floor surface 21, each of the four valley-shaped small grooves 99 provided on the inner surface deforms in a direction that causes it to fold into a valley. As a result, the cushioning material body 95 deforms in a direction that causes it to bulge out on both the outdoor and indoor sides and flatten out. In other words, the seat plate cushioning material 87 is deformed by the small grooves 99 so that the cushioning material body 95 closes any gaps created by the slope of the floor surface 21 or the like.
[0045] The seat cushioning material 87 has a mounting portion 93 made of a different material and with higher hardness integrally with the cushioning material body 95 in a portion that is inserted into the mounting groove 85. The seat cushioning material 87 can be integrally molded with the cushioning material body 95 and the mounting portion 93 by two-color molding. For example, the hardness of the mounting portion 93 of the seat cushioning material 87 can be set to 90° and the hardness of the cushioning material body 95 to 60-70°. The seat cushioning material 87 is inserted into the mounting groove 85 that opens at the end of the seat 19 and mounted into the mounting groove 85. The seat cushioning material 87 improves the ease of mounting into the mounting groove 85 by increasing the hardness of the mounting portion 93.
[0046] Figure 6 is a perspective view of the seat cap 89. The seat plate cap 89 comprises an end attachment portion 101 that fits over the longitudinal end portion 80 of the horizontal portion 79, a slit insertion portion 103 that is inserted into the slit 43, and a cap cushioning material 105 that extends from the slit insertion portion 103 to the end attachment portion 101. The seat plate cap 89 is made of a flame-retardant material, preferably a resin material equivalent to grade V-0. The seat plate cap 89 may also be integrally constructed by covering the outer surface of a core material formed from a fire-resistant material (such as steel) with a resin covering material.
[0047] The end attachment portion 101 is provided with a pair of corner attachment portions 107 that sandwich the lower engaging portion 65 of the slat 15, the concave groove portion 71 of the connecting plate 67, and the fixing piece portion 77 of the seat plate 19, covering the outdoor horizontal portion 81 and the indoor horizontal portion 83 of the seat plate 19, separated by a clamping space 109. The pair of corner attachment portions 107 are connected by end face covering portions 113 that close the end faces 111 (see Figure 7) at both ends in the longitudinal direction of the seat plate 19. A slit insertion portion 103 is provided protruding from the side opposite to the clamping space 109 and inserted into the slit 43 of the guide rail 45. A protrusion 104 extending in the longitudinal direction of the seat plate 19 is formed on the upper surface of the slit insertion portion 103. The protrusion 104 is inserted inside the lower engaging portion 65 (see Figure 5).
[0048] Figure 7 is an exploded perspective view showing the seat cap 89 before it is attached to the seat plate 19. The seat plate cap 89 is attached to the longitudinal end 80 of the seat plate 19 by fitting a pair of corner attachment portions 107 into the outdoor horizontal portion 81 and the indoor horizontal portion 83 of the seat plate 19. Since the seat plate cap 89 has no left or right orientation, the same cap can be attached to either end of the seat plate 19. When the seat plate cap 89 is attached to the seat plate 19, the slit insertion portion 103 is inserted into the slit 43 of the guide rail 45 (see Figure 8).
[0049] The corner attachment portion 107 is formed by the intersection of an upper covering portion 115 that covers the upper surface of the seat plate 19 and a front covering portion 117 that covers the indoor and outdoor surfaces of the seat plate 19, with each portion forming a roughly L-shape. The upper covering portion 115 is provided with cap fixing holes 119 for fixing the seat plate cap 89 to the outdoor horizontal portion 81 or the indoor horizontal portion 83. The seat plate cap 89 is fixed to the seat plate 19 by fixing means such as fixing screws (not shown) inserted through the cap fixing holes 119.
[0050] The seat plate cap 89 is equipped with a cap cushioning material 105 on the underside of the cap of the slit insertion portion 103. In this embodiment, the cap cushioning material 105 is the same as the seat plate cushioning material 87. The cap cushioning material 105 can be used by cutting the seat plate cushioning material 87 to a predetermined length. A mounting groove 85 identical in shape to the mounting groove 85 formed on the underside of the cap of the slit insertion portion 103 is formed. When the seat plate cap 89 is inserted and fixed to the longitudinal end 80 of the seat plate 19, the mounting groove 85 formed on the underside of the cap is at the same height from the floor surface 21 as the mounting groove 85 of the seat plate 19. Therefore, the cap cushioning material 105 mounted in the mounting groove 85 on the underside of the cap hangs down with the same length as the seat plate cushioning material 87 and is at the same hanging position (see Figure 4).
[0051] Figure 8 is a cross-sectional view of BB in Figure 2. The shaded hatched areas in Figure 8 indicate the deformed seat cushion material 87 and cap cushion material 105. The cap cushioning material 105, attached to the lower surface of the cap of the slit insertion portion 103, extends from inside the guide rail 45 toward the seat plate 19. The cap cushioning material 105 extends toward the longitudinal center side of the seat plate 19 (towards the center of the opening 13) beyond the end of the seat plate cushioning material 87 attached to the seat plate 19, and is positioned to overlap with the seat plate cushioning material 87 in the indoor / outdoor direction. That is, when the total length of the seat plate cushioning material 87 is W, the total length L of the cap cushioning material 105 is set to include the clearance C between the seat plate 19 and the guide rail 45 and the overlap K with the seat plate cushioning material 87, and is positioned to be partially parallel. The portion of the cap cushioning material 105 that forms the overlap K becomes the extended portion 121.
[0052] Furthermore, in this embodiment, the seat cushioning material 87 is provided in a pair of parallel seats. The extension portion 121 of the cap cushioning material 105 is positioned at an intermediate position between the pair of parallel seat cushioning materials 87.
[0053] Figure 9 is a perspective view of a modified seat plate cap 123 in which the cap cushioning material 105 is mohair. The seat cap 123 may also have a cap cushioning material 105 made of mohair. In this case as well, the mohair hangs down to the same length as the seat cushioning material 87 of the seat 19 and is positioned at the same hanging position, extending towards the longitudinal center of the seat 19 and positioned to overlap with the seat cushioning material 87 in the indoor / outdoor direction. The mohair is, for example, mohair for building materials, so-called joinery mohair, and has a structure in which synthetic fibers such as polypropylene fibers or nylon fibers are implanted into a strip material. The fibers that make up the mohair are numerous short fibers of about 15 to 20 mm in length, and the flexibility of the short fibers themselves allows for deformation and recovery. Furthermore, the mohair is preferably made of a flame-retardant material, preferably a resin material equivalent to grade V-0.
[0054] Next, I will explain the function of the above-described configuration.
[0055] In the structure of the opening / closing mechanism base plate according to this embodiment, a base plate 19 that is elongated in the width direction of the opening 13 is attached to the lowest end of the shutter curtain 17. The base plate 19 has a cross-sectional shape perpendicular to its longitudinal direction that is approximately an inverted T shape with a horizontal part 79 and a vertical part (slat fixing part 69) standing upright, so its longitudinal end 80 cannot be fitted into the slit 43 of the guide rail 45. Since the metal base plate 19 may vibrate and generate noise when raised and lowered if left outside the guide rail 45, resin base plate caps 89 are attached to both ends in the longitudinal direction.
[0056] The seat plate 19 is provided with a seat plate cushioning material 87 to absorb the gap between it and the floor surface 21. The seat plate cushioning material 87 is attached to the underside of the horizontal portion 79 of the seat plate 19 that faces the floor surface 21, extending along the longitudinal direction of the seat plate 19. The seat plate cushioning material 87 has a total length W that is approximately equal to the longitudinal ends of the seat plate 19.
[0057] Here, as shown in Figure 2, both longitudinal ends of the seat plate 19 to which the seat plate cap 89 is attached require clearance between them and the guide rail 45 in order to ensure smooth vertical movement. Therefore, an unclosed section M is created between the seat plate cushioning material 87, which ends at the longitudinal end 80 of the seat plate 19, and the guide rail 45 where the seat plate cushioning material 87 is absent. The unclosed section M is approximately equal to the clearance C. In addition, in the case of the seat plate 19 with the seat plate cushioning material, the seat plate cushioning material 87 deforms when it touches the ground, changing the height of the seat plate 19 from the floor surface 21. Depending on the degree of deformation of the seat plate cushioning material 87 when the seat plate 19 touches the ground, a gap S is likely to occur between the lower surface of the seat plate cap 89 and the floor surface 21.
[0058] Therefore, in the structure of the seat plate for opening and closing, a slit insertion portion 103 is provided on the end attachment portion 101 that covers the longitudinal end 80 of the horizontal portion 79 of the seat plate cap 89, and is inserted into the slit 43 of the guide rail 45. A cap cushioning material 105 is provided on both the slit insertion portion 103 and the end attachment portion 101, hanging down to the same length as the seat plate cushioning material 87 and at the same hanging position. This cap cushioning material 105 extends from inside the guide rail 45 toward the center of the opening 13 beyond the end of the seat plate cushioning material 87 and is provided overlapping with the seat plate cushioning material 87 in the indoor / outdoor direction.
[0059] Since the cap cushioning material 105 hangs down at the same hanging position as the seat cushioning material 87, if the seat cushioning material 87 touches the floor surface 21, the cap cushioning material 105 will also touch the floor surface 21. In other words, the cap cushioning material 105 can follow the height of the seat 19 and close the gap S between it and the floor surface 21. Furthermore, since the cap cushioning material 105 extends from inside the guide rail 45 towards the center of the opening 13 beyond the end of the seat cushioning material 87, it is arranged continuously with the seat cushioning material 87 without interruption in the width direction of the opening 13. In other words, the unclosed portion M can also be securely closed. If the seat cushioning material 87 and the cap cushioning material 105 are staggered in the continuous portion, it is not necessary to create a sealed state between the inside and outside. As a result, there is no gap S between the clearance C that runs linearly in the indoor and outdoor directions of the shutter curtain 17.
[0060] Therefore, light will not pass through the gaps and leak in and out of the room, and the aesthetic appeal will not be diminished due to visible light leakage. In addition, since the seat cushioning material 87 and the cap cushioning material 105 are staggered at the continuous section, insect intrusion can also be suppressed. Furthermore, because the seat cushioning material 87 and the cap cushioning material 105 are staggered, if highly fire-resistant materials are used for them, flames from a fire or other incident can also be suppressed from passing through the gaps to the inside and outside of the shutter curtain 17.
[0061] In this structure of the seat plate for opening and closing, the seat plate cushioning material 87 and the cap cushioning material 105 are formed having a hollow portion 97. The seat plate cushioning material 87 and the cap cushioning material 105 consist of a mounting portion 93 that is attached to the seat plate 19 and the seat plate cap 89, and a cushioning material body 95 that hangs down from the mounting portion 93 toward the floor surface 21. This cushioning material body 95 is a deformable portion. The cushioning material body 95 is formed in a tubular shape along the longitudinal direction of the seat plate 19. Therefore, the inside of the cushioning material body 95 is the hollow portion 97 described above.
[0062] Furthermore, the cushioning material body 95 has a cross-sectional shape perpendicular to its longitudinal direction, for example, a vertically elongated, roughly oval shape. Since the thickness of the cushioning material body 95 is almost uniform, the hollow portion 97 also has a vertically elongated, roughly oval shape.
[0063] When the seat plate 19 descends and is compressed between it and the floor surface 21, the cushioning material body 95 deforms in a direction that causes it to bulge outwards on both the outdoor and indoor sides and flatten outwards. In other words, the seat plate cushioning material 87 and the cap cushioning material 105 are deformed so that the cushioning material body 95 closes the gap created by the slope of the floor surface 21, etc. As a result, when the opening and closing mechanism is closed, the deformation direction of the seat plate cushioning material 87 and the cap cushioning material 105 can be controlled so that they bulge outwards in the indoor and outdoor directions, thereby improving the adhesion of the seat plate cushioning material 87 to the floor surface 21.
[0064] In this structure of the opening / closing mechanism seat plate, the cap cushioning material 105 is, for example, mohair used in building materials. Synthetic fibers such as polypropylene fibers or nylon fibers can be used for the mohair. The cap cushioning material 105 using mohair has a large number of short fibers implanted in it, and the flexibility of the short fibers allows it to deform and recover. Since a large number of short fibers stand up at high density, the light-shielding properties of the cap cushioning material 105 can be enhanced. As a result, deformation and recovery properties according to the size of the gap can be ensured in the cap cushioning material 105, and light leakage can be suppressed.
[0065] In this structure of the opening / closing mechanism seat plate, a pair of parallel seat plate cushioning materials 87 are provided on the lower surface of the horizontal section 79. That is, the seat plate cushioning materials 87 are provided in a double layer in the indoor / outdoor direction. The cap cushioning material 105 extends from within the guide rail 45 and fits between the pair of seat plate cushioning materials 87, which terminate at the longitudinal end 80 of the seat plate 19. The extended end of the cap cushioning material 105 is sandwiched between the pair of seat plate cushioning materials 87, and a portion of it is arranged in parallel. That is, it forms an spigot. As a result, compared to the case where there is only one seat plate cushioning material 87, there are two overlapping sections, which improves the light-shielding properties at the overlapping sections and also improves a certain degree of airtightness and watertightness. As a result, the extended portion 121 of the cap cushioning material 105 fits between the pair of seat plate cushioning materials 87, creating an spigot shape that makes it less likely for light to leak and insect damage to occur.
[0066] In this embodiment, the seat plate cap 89 is attached to the seat plate 91 for the opening and closing mechanism. In the structure of the seat plate for the opening and closing mechanism, a seat plate 19 that is long in the width direction of the opening 13 is attached to the lowest end of the shutter curtain 17. The seat plate 19 has a cross-sectional shape perpendicular to the longitudinal direction that is approximately an inverted T shape with a horizontal part 79 and a vertical part (slat fixing part 69) standing upright, so the longitudinal end 80 cannot be inserted into the slit 43 of the guide rail 45. Since the metal seat plate 19 may vibrate and generate noise when raised and lowered if left outside the guide rail 45, resin seat plate caps 89 are attached to both ends in the longitudinal direction.
[0067] The seat plate 19 is provided with a seat plate cushioning material 87 to absorb the gap between it and the floor surface 21. The seat plate cushioning material 87 is attached to the underside of the horizontal portion 79 of the seat plate 19 that faces the floor surface 21, extending along the longitudinal direction of the seat plate 19. The total length W of the seat plate cushioning material 87 is such that both ends in the longitudinal direction substantially coincide with both ends in the longitudinal direction of the seat plate 19.
[0068] Here, as shown in Figure 2, both longitudinal ends of the seat plate 19 to which the seat plate cap 89 is attached require clearance between them and the guide rail 45 in order to ensure smooth vertical movement. Therefore, an unclosed section M is created between the seat plate cushioning material 87, which ends at the longitudinal end 80 of the seat plate 19, and the guide rail 45 where the seat plate cushioning material 87 is absent. The unclosed section M is approximately equal to the clearance C. In addition, in the case of the seat plate 19 with the seat plate cushioning material, the seat plate cushioning material 87 deforms when it touches the ground, changing the height of the seat plate 19. Depending on the degree of deformation of the seat plate cushioning material 87 when the seat plate 19 touches the ground, a gap S is likely to occur between the lower surface of the seat plate cap 89 and the floor surface 21.
[0069] Therefore, in the seat plate cap 89, a slit insertion portion 103 is provided in the end attachment portion 101 that is fitted over the longitudinal end portion 80 of the horizontal portion 79, and which is inserted into the slit 43. A cap cushioning material 105 is provided in both the slit insertion portion 103 and the end attachment portion 101, which hangs down to the same length as the seat plate cushioning material 87 and is at the same hanging position. This cap cushioning material 105 extends from inside the guide rail 45 towards the center of the opening 13 beyond the end of the seat plate cushioning material 87 and is provided overlapping the seat plate cushioning material 87 in the indoor / outdoor direction.
[0070] Since the cap cushioning material 105 hangs down at the same hanging position as the seat cushioning material 87, if the seat cushioning material 87 touches the floor surface 21, the cap cushioning material 105 will also touch the floor surface 21. In other words, the cap cushioning material 105 can follow the height of the seat plate 19 and close the gap S. Also, since the cap cushioning material 105 extends from inside the guide rail 45 towards the center of the opening 13 beyond the end of the seat cushioning material 87, it is arranged continuously with the seat cushioning material 87 without interruption in the width direction of the opening 13. In other words, the unclosed portion M can also be securely closed. If the seat cushioning material 87 and the cap cushioning material 105 are staggered in the continuous portion, it is not necessary to create a sealed state between the inside and outside. As a result, there is no gap S between the clearance C that runs linearly in the indoor and outdoor directions of the shutter curtain 17.
[0071] Thus, with the seat plate cap 89, light does not pass through the gaps and leak in and out of the room, and there is no deterioration in design due to visible leaked light. In addition, the seat plate cushioning material 87 and the cap cushioning material 105 are staggered at the continuous section, which also suppresses the entry of insects. Furthermore, because the seat plate cushioning material 87 and the cap cushioning material 105 are staggered, using highly fire-resistant materials for them also suppresses flames from passing through the gaps to the inside and outside of the shutter curtain 17.
[0072] In the above-described embodiment, the cushioning material body 95 of the seat cushioning material 87 was described as having a vertically elongated, approximately oval cross-sectional shape perpendicular to the longitudinal direction and having a hollow portion 97. However, the cross-sectional shape of the cushioning material body 95 is not limited to this, and other shapes are also acceptable as long as they deform when placed on the ground and the deformation closes the gap S. For example, it may be configured as a polygon or an approximately C-shaped cross-section with an open side. Furthermore, in the seat cushioning material 87, an example was described in which the mounting portion 93 and the cushioning material body 95 are molded from different materials. However, it may also be molded from a material with uniform hardness, for example, a hardness of 70°, or from a combination of materials with multiple hardnesses. Furthermore, the cross-sectional shape of the cap cushioning material 105 is not limited to the approximately oval shape as in the above-described embodiment, and the example of being made of mohair is just one example; it may be made of other components and materials, or a combination thereof, as long as it is a member that closes the gap S, clearance C, that is created between the lower surface of the seat plate cap 89 and the floor surface 21 when the seat plate 19 is in contact with the ground. Preferably, the material is a flame-retardant material.
[0073] Therefore, according to the structure of the opening / closing base plate of this embodiment, it is possible to improve the aesthetic appearance by shielding against light leakage when the shutter curtain 17 is in contact with the ground, improve insect-proofing by sealing gaps, and also enable it to function as a fire-resistant device.
[0074] Moreover, according to the seat plate cap 89 according to the present embodiment, it is only necessary to attach it to the longitudinal end portion 80 of the seat plate 19, and it is possible to improve the design by shielding the leakage light when the shutter curtain 17 touches the ground, and to improve the insect-proof property by closing the gap, and it is also possible to cope as a fire protection facility.
Explanation of reference numerals
[0075] 13... Opening 17... Opening / closing body (shutter curtain) 19... Seat plate 43... Slit 45... Guide rail 79... Horizontal portion 80... Longitudinal end portion 87... Seat plate buffer 89... Seat plate cap 91... Seat plate for opening / closing body 97... Hollow portion 101... End portion attachment portion 103... Slit insertion portion 105... Cap buffer 121... Extension portion 123... Seat plate cap
Claims
1. A seat plate for an opening / closing body is provided, wherein a pair of guide rails extending vertically with slits facing each other on both sides in the width direction of the opening are used to guide the opening and closing of the opening, and a long seat plate is attached to the lowest end of the opening body, positioned between the guide rails, and a seat plate cushioning material is attached to the lower surface of the horizontal portion of the seat plate in the longitudinal direction, The seat plate is equipped with seat plate caps attached to both ends in the longitudinal direction of the seat plate, The aforementioned seat plate cap is An end attachment portion that covers the longitudinal end of the horizontal portion, A slit insertion portion to be inserted into the aforementioned slit, A cap cushioning material is provided extending from the slit insertion portion to the end attachment portion, hanging down to the same length as the seat cushioning material, and extending further towards the center than the end of the seat cushioning material, overlapping with the seat cushioning material in the indoor / outdoor direction, A structure for a seat plate for an opening / closing mechanism, characterized by comprising the following:
2. The structure of a seat plate for an opening / closing body according to claim 1, characterized in that the seat plate cushioning material and the cap cushioning material are formed having a hollow portion.
3. The structure of the seat plate for an opening / closing body according to claim 1, characterized in that the cap cushioning material is mohair.
4. The structure of a seat plate for an opening / closing body according to any one of claims 1 to 3, characterized in that the extended portion of the cap cushioning material is arranged between a pair of parallel seat plate cushioning materials.
5. In a structure for an opening / closing body seat plate, a long seat plate is attached to the lowest end of an opening / closing body, positioned between the guide rails, and a seat plate cushioning material is attached to the lower surface of the horizontal portion of the seat plate, extending longitudinally, with the edges on both sides of the opening being inserted into the slits of a pair of guide rails that extend vertically with slits facing each other on both sides in the width direction of the opening. An end attachment portion that covers the longitudinal end of the horizontal portion, a slit insertion portion that is inserted into the slit, and a cap cushioning material that extends from the slit insertion portion to the end attachment portion, hangs down at the same hanging position as the seat cushioning material, extends towards the center from the end of the seat cushioning material, and overlaps with the seat cushioning material in the indoor / outdoor direction. A seat cap characterized by having the following features.
6. The seat plate cap according to claim 5, characterized in that the seat plate cushioning material and the cap cushioning material are formed having a hollow portion.
7. The seat plate cap according to claim 5, characterized in that the cap cushioning material is mohair.
8. The seat cap according to any one of claims 5 to 7, characterized in that the extended portion of the cap cushioning material is arranged between a pair of parallel seat cushioning materials.