Gap shielding device and sliding door device provided with the same

Abstract

A gap shielding device and a sliding door device provided with the same are provided. The gap shielding device (2) is installed to an upper edge portion (5a) of an opening (5) in a manner of shielding a gap between an upper end side of a sliding door (10) in a closed position and the upper edge portion of the opening, and includes a seal holding member (30) holding a seal portion (35) extending in a door width direction in a long strip shape, and a fixing member (20) displacing the seal holding member in a direction in which the seal portion is brought into contact with and separated from an upper end portion (10a) of the sliding door, and fixed to the upper edge portion of the opening. A magnet (39) is provided to the seal holding member in a manner of abutting the seal portion against the upper end portion of the sliding door in the closed position, and is attracted by an attracting portion (13) of the sliding door.

Description

Technical Field

[0001] The present invention relates to a gap-shielding device and a sliding door device having the gap-shielding device. Background Technology

[0002] Previously, sliding doors were known to open and close openings (entrances) in the walls of buildings. Such sliding doors are designed to slide freely in the width direction, so a gap is easily formed between the upper side of the closed position and the upper edge of the opening.

[0003] For example, Patent Document 1 discloses an opening and closing door device having an elongated cover that extends parallel to the door when closed and seals the space between the lower surface of the upper frame and the upper surface of the door. The cover of the opening and closing door device is provided with an elongated elastic member that extends from the cover body fixed to the lower surface of the upper frame toward the opening and closing door side and abuts against the door, extending parallel to the door.

[0004] Existing technical documents Patent documents Patent Document 1: Japanese Patent Application Publication No. 2023-11508 Summary of the Invention

[0005] The problem that the invention aims to solve However, in the cover described in Patent Document 1, in order to make the elastic member stably abut against the opening and closing door, the elastic member needs to be pressed relatively strongly against the opening and closing door. In this case, the sliding resistance increases when the opening and closing door slides, and there is also a concern about wear.

[0006] The present invention was made in view of the aforementioned actual situation, and its object is to provide a gap shielding device and a sliding door device having the gap shielding device, which can stably shield the gap on the upper side of the sliding door in the closed position, and can reduce the resistance of the sealing part when the sliding door slides.

[0007] Methods for solving problems To achieve the aforementioned objective, the gap-blocking device of the present invention is a gap-blocking device installed on the upper edge of the opening in a manner that blocks the gap between the upper end of the sliding door in the closed position and the upper edge of the opening opened and closed by the sliding door. It is characterized by comprising: a sealing and retaining member held in a long strip-shaped sealing portion extending in the door width direction; and a fixing member that freely retains the sealing and retaining member in a direction in which the sealing portion contacts and separates from the upper end of the sliding door, and is fixed to the upper edge of the opening. A magnet is provided on the sealing and retaining member, and the magnet is attracted by an attraction portion provided on the sliding door in a manner that causes the sealing portion to abut against the upper end of the sliding door in the closed position.

[0008] To achieve the aforementioned objective, the sliding door device of the present invention is characterized by comprising a sliding door and a gap shielding device as described in the present invention.

[0009] Invention Effects The gap-shielding device and the sliding door device equipped with the gap-shielding device according to the present invention, by having such a structure, can stably shield the gap on the upper side of the sliding door in the closed position, and can reduce the resistance of the sealing part when the sliding door slides. Attached Figure Description

[0010] Figure 1 This is a partial cross-sectional schematic front view schematically showing the construction state of an example of a gap shielding device according to an embodiment of the present invention and an example of a sliding door device equipped with the gap shielding device.

[0011] Figure 2 This is a partial sectional, roughly exploded perspective view of the sliding door device.

[0012] Figure 3 (a) and (b) are related to Figure 1 The partial longitudinal section view corresponding to the YY line in the view.

[0013] Figure 4 Is with Figure 3 The partial cross section view corresponding to the XX line in (a).

[0014] Figure 5 Images (a) and (b) schematically illustrate an example of a gap-shielding device according to other embodiments of the present invention and an example of a sliding door device equipped with the gap-shielding device, which are related to... Figure 3 (a) and (b) are partial section outline longitudinal sectional views.

[0015] Figure 6 Images (a) and (b) schematically illustrate an example of a gap-shielding device according to another embodiment of the present invention, and an example of a sliding door device equipped with the gap-shielding device, which is related to... Figure 3 (a) and (b) are partial section outline longitudinal sectional views.

[0016] Symbol Explanation 1, 1A, 1B Sliding door devices 2, 2A, 2B Gap shielding devices 10 Sliding Doors 10a Upper end 13. Sliding door side fittings (suction unit) 20, 20A, 20B Fixing components 30, 30A, 30B Sealing Retention Components 33 Magnet holding part 35, 35A Sealing Part 38 End caps 39 Magnets 5 Openings 5a Upper edge Detailed Implementation

[0017] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0018] In some of the figures, some detailed reference numerals have been omitted.

[0019] In the following embodiments, the vertical and other directions will be described based on the state in which the gap shielding device and the sliding door device equipped with the gap shielding device are being constructed according to the embodiments.

[0020] Figures 1-4 The diagram schematically illustrates an example of a gap-shielding device according to the first embodiment and an example of a sliding door device equipped with the gap-shielding device.

[0021] like Figure 3 (a) and Figure 4As shown, the gap-blocking device 2 of this embodiment is installed on the upper edge 5a of the opening 5 to block the gap between the upper end of the closed position of the sliding door 10 and the upper edge 5a of the opening 5 that is opened and closed by the sliding door 10. The gap-blocking device 2 includes a sealing retaining member 30 that holds an elongated sealing portion 35 extending in the door width direction, and a fixing member 20 that holds the sealing retaining member 30 and fixes it to the upper edge 5a of the opening 5. With this structure, the sealing portion 35 abuts against the upper end 10a of the sliding door 10, thereby blocking the gap between the upper end of the closed position of the sliding door 10 and the upper edge 5a of the opening 5, thereby improving the sound insulation of the upper end of the sliding door 10. The fixing member 20 holds the sealing retaining member 30 so that it can be freely displaced in the direction in which the sealing portion 35 contacts and separates from the upper end 10a of the sliding door 10. With this structure, compared to a structure in which an elastic member is fixedly abutted against the opening and closing door on a cover fixed to the lower surface of the upper frame, even when the sliding door 10 shakes during sliding, the excessive contact between the sealing part 35 and the sliding door 10 can be reduced.

[0022] Furthermore, a magnet 39 is provided in the sealing and retaining member 30. This magnet 39 is attracted by the attraction part (13) of the sliding door 10 such that the sealing part 35 abuts against the upper end 10a of the sliding door 10 in the closed position. With such a structure, even if the sealing part 35 is made to be freely displaceable as described above, the sealing part 35 can be stably abutted against the upper end 10a of the sliding door 10 by the attraction of the magnet 39 by the attraction part (13) of the sliding door 10.

[0023] In this embodiment, the fixing member 20 is an elongated strip extending in the door width direction, and the sealing retaining member 30 is connected to the lower side of the fixing member 20 and is also an elongated strip extending in the door width direction. Furthermore, the width dimension W2 of the sealing retaining member 30 along the door thickness direction is smaller than the width dimension W1 of the fixing member 20 along the same direction. With this structure, since the sealing retaining member 30 connected to the lower side of the fixing member 20 is thin, compared to a structure where the width dimension in the door thickness direction of the entire gap-shielding device is larger, the feeling of oppression can be reduced, resulting in a simpler impression.

[0024] The sliding door device 1 according to this embodiment includes the gap shielding device 2 and the sliding door 10. An example of the specific structure of the gap shielding device 2 will be described later.

[0025] like Figure 1As shown, the sliding door 10 is formed as a roughly rectangular flat plate that is elongated in the vertical direction, and opens and closes to an opening 5 that serves as an entrance / exit, which is provided in a manner that penetrates the wall 3 of the building. In this embodiment, the sliding door 10 is slidably suspended and held on the upper track 16 in the door width direction. That is, the sliding door 10 is installed using an overhead suspension method. The height dimension (length dimension) of the sliding door 10 can also be set to a dimension corresponding to the opening height of the opening 5 that is opened and closed by the sliding door 10. The height dimension of the sliding door 10 can be, for example, about 1800mm to 2100mm. When the opening height of the opening 5 is approximately the same as the height of the ceiling from the floor, the height dimension of the sliding door 10 can be, for example, about 2400mm to 3000mm. In addition, the width dimension of the sliding door 10 can be a dimension corresponding to the opening width of the opening 5, for example, about 600mm to 1200mm. In addition, the thickness dimension of the sliding door 10 can be, for example, about 20mm to 40mm.

[0026] Handles 11, 11 (also refer to) are provided on both sides of the door head end in the door thickness direction. Figure 4 In the illustration, handles 11, 11 are provided such that they protrude outward in the direction of door thickness from the end of the sliding door 10 at the door head side, becoming rod-shaped handles extending in the direction of door height. Handles 11, 11 are not limited to this structure; they can also be recessed handles formed by being recessed at the end of the sliding door 10 at the door head side.

[0027] At the upper end 10a of the sliding door 10, on both sides in the door width direction, sliding members 12, 12 are provided, which are suspended and held by the upper track 16 described later. These sliding members 12, 12 may also be structures with rolling elements such as rollers that roll on the guide plate portion provided on the upper track 16.

[0028] Alternatively, a guide groove may be provided at the lower end of the sliding door 10, extending in the door width direction, and the guide groove may receive a guide portion provided on the floor side. Alternatively, a shielding member may be provided on the lower end side of the sliding door 10 to at least cover the gap between the lower end side of the sliding door 10 and the floor side at the closed position.

[0029] The panel body constituting the sliding door 10 may be, for example, a so-called glitter panel on which a surface material is pasted onto a panel core material having a four-sided frame. In the illustration, an example is shown in which both sides (10b) of the sliding door 10 in the thickness direction are flat, but for example, it may also be a frame-like panel with an end plate-like portion in the center that is thinner than the surrounding area.

[0030] The sliding door 10 is mounted on a door frame 14 including an upper track 16. The door frame 14 can also be mounted on the sliding door assembly 1. In the illustration, the door frame 14 is configured to be mounted such that the single-leaf sliding door 10 is retracted into the side wall in a single-leaf sliding manner (see also [reference]). Figure 4 That is, the side wall 4 along which the sliding door 10 in the open position is provided on the wall 3. In the illustration, an example is shown in which the wall width dimension of the side wall 4 is smaller than the door width dimension so as to form a traction residue on the sliding door 10 in the fully open state, but it is not limited to such an example depending on the handle 11, 11, etc. of the sliding door 10.

[0031] The door frame 14 includes an upper frame 15, a front-side longitudinal frame 17 whose upper end is joined to the front end of the upper frame 15, a rear-side longitudinal frame 18 whose upper end is joined to the rear end of the upper frame 15, and a middle longitudinal frame (square) 19 whose upper end is joined to the middle part of the upper frame 15 along its length. The upper side of the opening 5, which is opened and closed by the sliding door 10, is divided by the upper frame 15 (upper track 16), the front side is divided by the front-side longitudinal frame 17, and the rear side is divided by the middle longitudinal frame 19. The lower side of the opening 5 can be divided by the floor or by a suitable lower frame.

[0032] The upper frame 15 can also be fixed to a suitable upper frame base that forms the top surface of the opening in a manner that penetrates the wall 3 of the building. In the illustration, an example is shown in which a vertical wall constituting the wall 3 is provided on the upper side of the upper frame 15, but this form can also be replaced by a form in which the upper frame 15 is attached to or embedded in the ceiling, etc.

[0033] The upper track 16 is fixed to the lower surface 15a side of the upper frame 15. For example... Figure 3 As shown in (a), at least the upper portion of the upper track 16 is housed and fixed in a receiving groove 15b formed on the lower surface 15a side of the upper frame 15. A guide groove 16a is provided on the upper track 16, opening downwards and extending along its length. This guide groove 16a receives and guides the sliding members 12, 12 that constitute the guided component located on the upper side of the sliding door 10.

[0034] The front side longitudinal frame 17 and the rear side longitudinal frame 18 can also be fixed on a suitable longitudinal frame base on the opposite inner side of the opening.

[0035] like Figure 4 As shown, a receiving groove (door receiving groove) for receiving the door head side end of the sliding door 10 in the closed position is provided on the door head side longitudinal frame 17 in a manner that extends in the vertical direction (along the direction of door height). Alternatively, a door head side sealing part that abuts against the door head side end of the sliding door 10 in the closed position and is elongated in the door height direction may be provided on the door head side longitudinal frame 17.

[0036] When fully open, the rear end of the sliding door 10 abuts against or approaches the rear longitudinal frame 18.

[0037] The intermediate longitudinal frame 19 is provided along the end of the side wall 4 on the side of the opening 5. A shielding member 19a may also be provided on one or both of the intermediate longitudinal frame 19 and the end of the door of the sliding door 10 to shield the gap between the end of the door of the sliding door 10 and the intermediate longitudinal frame 19 in the closed position.

[0038] The door frame 14 is not limited to the structure described above, but can also be various other structures.

[0039] The fixing member 20 of the gap shielding device 2 includes a fixing piece 21 fixed to the upper edge 5a of the opening 5 by the fixing member 6, and a cover 25 held on both ends of the fixing piece 21 in the width direction (the same direction as the door thickness direction) to cover the fixing member 6. With this structure, the fixing member 6 that fixes the fixing member 20 can be covered by the cover 25, making the fixing member 6 inconspicuous and improving aesthetics. The fixing member 20 includes a connecting part 24, which is provided on the outside of the width direction of the holding part (first holding part 22) at one end in the width direction, and connects to the sealing holding member 30. With this structure, the fixing member 20 connected to the sealing holding member 30 can be fixed by aligning the sealing part 35 with the upper end 10a of the sliding door 10, and the cover 25 can be installed on the fixing member 20. Furthermore, since the cover 25 and the sealing retaining component 30 are separate, the fastener 6 can be easily adjusted by simply removing the cover 25.

[0040] The fixing component 20 is installed on the upper edge 5a of the opening 5 in such a way that it is located on the side of the door thickness direction of the sliding door 10 in the closed position. With this structure, for example, compared with the structure in which the retaining part of the sealing part 35 is embedded in the upper frame and the upper track, the construction of the upper frame 15 and the upper track 16 can be simplified. In other words, the upper frame 15 and the upper track 16 can also be made to share components with the upper frame 15 and the upper track 16 of the sliding door device 1 without the gap shielding device 2, and the gap shielding device 2 can also be selectively and additionally installed later.

[0041] The sealing retaining member 30 is freely connected to the fixing member 20 in such a way that the sealing part 35 can be displaced in a direction orthogonal to the door width direction.

[0042] In this embodiment, the sealing retaining member 30 is movably connected to the fixing member 20 such that the sealing part 35 can be displaced in the door thickness direction. With this structure, even if the sliding door 10 wobbles in the door thickness direction during opening and closing, excessive contact between the sealing part 35 and the sliding door 10 can be reduced.

[0043] The sealing and retaining member 30 is freely displaceable to the fixing member 20 in a shielded position where the sealing part 35 abuts against the closed position of the sliding door 10 and in a retracted position where it separates from the open position, including a slightly open state. With this structure, the sealing part 35 can be displaced to the retracted position separated from the sliding door 10, thus the sealing part 35 is less likely to become a sliding resistance when the sliding door 10 slides, allowing the sliding door 10 to slide smoothly. Furthermore, wear caused by the sealing part 35 sliding relative to the sliding door 10 is less likely to occur. In addition, in this embodiment, since the sealing part 35 can be displaced in the door thickness direction, for example, compared to a structure that requires the sealing part to be freely displaced in the vertical direction and displaced against its own weight towards the upper side, which is the retracted position, the retaining structure can be simplified.

[0044] Specifically, the fixing member 20 is installed on the upper frame 15 of the mounting object that forms the upper edge 5a of the opening 5. The fixing member 20 is installed in such a way that the sealing part 35 can abut against the side 10b of the sliding door 10 in the door thickness direction when it is in the closed position.

[0045] like Figure 4 As shown, the fixing member 20 is arranged to extend substantially throughout the width direction of the opening 5, that is, to extend substantially between the side longitudinal frame 17 and the middle longitudinal frame 19 in the illustration. In the illustration, an example is shown in which a small gap is formed between the two ends of the fixing member 20 in the longitudinal direction and the longitudinal frames (17, 19) on both sides, but it is also possible for one or both ends of the fixing member 20 in the longitudinal direction to abut against the longitudinal frames (17, 19).

[0046] like Figure 2 and Figure 3 As shown, the fixing plate 21 is fixed along the lower surface 15a of the upper frame 15, and is formed into a generally plate-like shape arranged vertically in the thickness direction. The fixing plate 21 is provided with an insertion hole 21a through which the shaft portion of a screw or other fastener 6, which fixes the fixing member 20 to the upper frame 15, is inserted. This insertion hole 21a is an elongated hole in the door thickness direction. With this structure, the fixing member 20 can be moved and aligned in the door thickness direction while the fastener 6 inserted in the insertion hole 21a is temporarily fixed relative to the upper frame 15, thus temporarily holding the fixing member 20 relative to the upper frame 15. The insertion holes 21a can also be provided at multiple intervals in the length direction (opening width direction) of the fixing plate 21.

[0047] The retaining parts (22, 23) include a first retaining part 22 that is on the side of the sliding door 10 in the width direction and a second retaining part 23 on the side of the other end in the width direction.

[0048] The first retaining portion 22 is provided at the lower end of the hanging piece portion that hangs down from one end of the fixed piece portion 21 in the width direction. In the illustration, the first retaining portion 22 is a retaining groove that opens toward the other end in the width direction and extends along the length direction.

[0049] The second retaining part 23 is provided at the lower end of the hanging piece that hangs down from the other end of the fixed piece 21 in the width direction. In the illustration, the second retaining part 23 is a hook-shaped retaining part having a portion that protrudes outward in the width direction from the lower end of the hanging piece and a portion that protrudes upward.

[0050] In the fixing member 20, a receiving recess is formed by the fixing plate 21 and the hanging plates at both ends in the width direction, which opens downward and accommodates the head of the fixing member 6. The depth dimension of the receiving recess in the vertical direction and the width dimension in the thickness direction are only appropriate dimensions that can accommodate the head of the fixing member 6.

[0051] The cover 25 is provided with an opening that covers the aforementioned receiving recess, and is formed into a generally strip-shaped structure with its thickness direction arranged vertically. A first held portion 26, held by a first holding portion 22, is provided at one end of the cover 25 in the width direction (the side of the sliding door 10), and a second held portion 27, held by a second holding portion 23, is provided at the other end of the cover 25 in the width direction. The first held portion 26 is formed by inserting one end of the cover 25 in the width direction into the first holding portion 22, which serves as a holding groove. The second held portion 27 has a portion protruding from the upper end of an upright piece that rises upwards from the other end of the cover 25 in the width direction towards one end in the width direction, and a portion protruding downwards, forming a hook-shaped hook-and-hold portion, which is hooked and held by the second holding portion 23. The first holding portion 26 and the second holding portion 27 on both ends of the width direction of the cover 25 are detachable from the first holding portion 22 and the second holding portion 23 on both ends of the width direction of the fixing piece 21, respectively, and the cover 25 is detachable from the fixing piece 21.

[0052] The connecting portion 24 is disposed adjacent to the sliding door 10 side of the first retaining portion 22. The connected portion 31 on the upper end side of the sealing retaining member 30 is rotatably connected to the connecting portion 24 about an axis along the length direction (opening width direction) of the fixing member 20. With such a structure, the sealing retaining member 30 rotates with its upper end as a fulcrum, and its lower end side moves in a pendulum-like manner approximately in the door thickness direction. Thus, for example, compared to a structure that allows the sealing portion to be slidably retained with approximately free displacement in the door thickness direction, it can move smoothly, and furthermore, it is less prone to deterioration due to friction, etc.

[0053] One of these connecting parts 24 and connected parts 31 is a shaft that rotatably holds the bearing part of the other. In the illustration, the connecting part 24 constitutes the bearing part, and the connected part 31 constitutes the shaft part.

[0054] The connecting portion 24 is formed as a generally cylindrical groove that opens downward and extends along the length of the fixing member 20. The downward opening of the connecting portion 24 is configured to allow free displacement of the upper end of the sealing and retaining member 30.

[0055] The fixing member 20, as described above, is a thin, approximately cuboid shape with a flat outer profile, its thickness along the vertical direction. The width W1 of this fixing member 20 can also be set to an appropriate size so that the sealing retaining member 30 can be held at one end in the width direction, and can be fixed at the other end in the width direction using the fixing member 6. In the illustration, the width W1 of the fixing member 20 is approximately three times its thickness along the vertical direction, but this is not an isolated example.

[0056] The fixing member 20 may also have a cross-sectional shape that is substantially the same throughout its overall length. The fixing member 20 may also be an extruded product formed of a suitable metallic or synthetic resin material. Alternatively, instead of a structure in which the connecting portion 24 is provided along the entire length of the fixing member 20, a structure may be provided at appropriate positions at both ends of the fixing member 20 in the length direction.

[0057] Magnet 39 is disposed inside the sealing and retaining member 30. With this structure, even when the sliding door 10 is open and the sealing and retaining member 30 is exposed on the upper edge 5a side of the opening 5, magnet 39 will not be exposed, thus improving aesthetics.

[0058] The sealing and retaining member 30 is a hollow cylindrical shape extending in the width direction of the door, and the magnet 39 is housed within the sealing and retaining member 30 through an opening at one end in the length direction of the sealing and retaining member 30. With this structure, the length of the sealing and retaining member 30 can be easily adjusted according to the opening width of the opening 5.

[0059] The sealing and retaining member 30 has a magnet retaining portion 33 that holds a magnet 39 inside. The magnet 39 is inserted into and held in the magnet retaining portion 33 through an opening at one end of the sealing and retaining member 30 in the longitudinal direction. With such a structure, assembly can be easily achieved by inserting the magnet 39 into and holding it in the magnet retaining portion 33 through an opening at one end of the sealing and retaining member 30 in the longitudinal direction.

[0060] The magnet 39 is held in place by an end cover 38 that covers the opening at one end of the sealing and retaining member 30 in the longitudinal direction. With this structure, by mounting the end cover 38 holding the magnet 39 onto the sealing and retaining member 30, the opening at one end of the sealing and retaining member 30 in the longitudinal direction can be covered, and the magnet 39 can be disposed inside the sealing and retaining member 30. Therefore, assembly is easier compared to a structure where the end cover needs to be mounted to the sealing and retaining member 30 separately from the magnet 39.

[0061] Specifically, the length of the sealing retaining member 30 is approximately the same as the length of the fixing member 20.

[0062] The sealing and retaining member 30 has a connected portion 31 at its upper end and a sealing portion 35 at its lower end. That is, the sealing and retaining member 30 can rotate freely with the connected portion 31 at its upper end as a fulcrum, so that the sealing portion 35 at its lower end can be displaced approximately in the door thickness direction.

[0063] The connected portion 31 of the sealing and retaining member 30 is a generally cylindrical shape extending along the length direction (door width direction) of the sealing and retaining member 30. In the illustration, the connected portion 31 extends along the entire length of the sealing and retaining member 30, but it may also be provided at appropriate locations such as the two ends along the length direction. The connecting portion 24 and the connected portion 31, which allow the sealing and retaining member 30 to be rotatably held in place by the fixing member 20, are not limited to the structure described above and may be configured in various other ways.

[0064] A sealing retaining portion 34 for retaining the sealing portion 35 is provided at the lower end of the sealing retaining member 30. This sealing retaining portion 34 is configured to open towards the sliding door 10 and extend along the entire length of the sealing retaining member 30, forming a retaining groove into which the base end of the sealing portion 35 is inserted. The groove wall portion of the sealing retaining portion 34 on the lower side, which is one side in the groove width direction, is formed to protrude towards the sliding door 10, functioning as a reinforcing piece 34a to strengthen the sealing portion 35. With this structure, damage to the sealing portion 35 can be suppressed. The reinforcing piece 34a is formed to protrude from the lower end of the sealing retaining member 30 towards the sliding door 10.

[0065] The sealing portion 35 extends along the entire length of the sealing retaining member 30. The base end of the sealing portion 35, which is embedded in the sealing retaining member 34, is formed in a generally cuboid shape. A fin-shaped portion is provided on the front end side, which is the side of the sliding door 10, and abuts against a side 10b of the upper end portion 10a of the sliding door 10, undergoing elastic deformation. In the illustration, an example is shown where a protruding portion is provided at the base end of the sealing portion 35, which is embedded into a recess provided in the groove wall of the sealing retaining member 34. Furthermore, the fin-shaped portion of the sealing portion 35 is formed with a curved shape having a portion extending obliquely upward from the base end and a portion extending obliquely downward from that portion via a curved portion. The sealing portion 35 can be installed in the sealing retaining member 34 simply by embedding, or it can be installed using a suitable adhesive material, glue, etc., or it can be installed in a removable manner. The sealing portion 35 is not limited to this shape and can be provided in various other shapes. Additionally, the sealing portion 35 can be formed from a suitable elastic material such as rubber.

[0066] When the sealing retaining member 30 is forced towards the retracted position, the magnet 39 is attracted by the attracting part (13) in a manner that overcomes the applied force, thus becoming a shielded position in the closed position. With this structure, if the sliding door 10 is in the closed position, the sealing retaining member 30 can be set to the shielded position. Therefore, it is not necessary to manually position the sealing retaining member 30 in the shielded position. On the other hand, when the sliding door 10 is in the open position, the sealing retaining member 30 is forced towards the retracted position, thus effectively suppressing the sliding of the sealing retaining member 30 on the sliding door 10.

[0067] The sealing retaining member 30 is forced towards the retracted position due to its own weight. With this structure, when the sliding door 10 is in the open position, the sealing retaining member 30 is in the retracted position due to its own weight; conversely, when the sliding door 10 is in the closed position, the sealing retaining member 30 is in the shielded position due to magnetic attraction. Therefore, for example, compared to a structure that uses a force-applying member such as a spring to force the sealing retaining member 30 towards the retracted position, the construction can be simplified. Furthermore, it is less likely that malfunctions such as the sealing retaining member 30 accidentally becoming shielded in the open position due to malfunction or deterioration of the force-applying member will occur.

[0068] like Figure 3 As shown in (a), the sealing retaining member 30 is configured such that, in the shielded position, its center of gravity is closer to the sliding door 10 than that of the connected part 31. That is, if the relative attraction of the magnet 39 to the attracting part (13) is unloaded, then as Figure 3As shown in (b), the sealing retaining member 30 is displaced toward the retracted position side with its center of gravity directly below the connected part 31 due to its own weight. The sealing retaining member 30 is configured such that it does not interfere with the sliding door 10 including the sealing part 35 and the attraction part (13) provided on the sliding door 10 in the retracted position, and the magnet 39 is attracted by the attraction part (13) when the sliding door 10 is in the closed position.

[0069] The sealing and retaining member 30 is configured such that, in the concealed position, a cylindrical portion 32 for housing the magnet 39 is provided at the lower end of a plate-shaped upper end piece extending downward from the connected portion 31. This cylindrical portion 32 is formed in the concealed position as a flat, square cylinder with its thickness along the door thickness direction, and its side wall portion, which is different from the sliding door 10, is connected to the upper end piece. In other words, the cylindrical portion 32 is formed such that the entire housing portion defined by it is closer to the sliding door 10 side than the connected portion 31 in the concealed position. Both sides of the cylindrical portion 32 in the thickness direction are formed in the concealed position as generally flat surfaces that are generally perpendicular to each other. With this structure, compared to a structure where the magnet 39 and the components holding the magnet 39 are exposed on the sliding door 10 side of the cylindrical portion 32, it has a cleaner appearance and improves aesthetics.

[0070] A magnet holding part 33 is formed on the side wall of the cylindrical part 32 on the side of the sliding door 10.

[0071] like Figure 2 As shown, magnet holding portions 33 are provided at two locations on the inner surface of the side wall of the cylindrical portion 32, spaced apart in the vertical direction. These magnet holding portions 33 are open in opposite directions, forming holding grooves extending in the length direction.

[0072] The end cap 38 forms a magnet support 36 for holding the magnet 39. A receiving recess for holding the magnet 39 is provided in the magnet support 36, opening towards the sliding door 10. The magnet support 36 is provided with held portions 37, 37 that are held by the magnet holding portions 33, 33 of the cylindrical portion 32. The held portions 37, 37 are formed as protrusions that are inserted into the magnet holding portions 33, 33 corresponding to them. The held portions 37, 37 provided in the magnet support 36 and the magnet holding portions 33, 33 that hold the held portions 37, 37 are not limited to this structure and can be various other structures.

[0073] With the magnet bracket 36 inserted into the cylindrical part 32 and held by the holding parts 37 and 37 in the magnet holding parts 33 and 33, the magnet 39 abuts against or approaches the side wall of the sliding door 10 side of the cylindrical part 32.

[0074] An end cover 38 is disposed on one end of the magnet holder 36 in the insertion direction. The end cover 38 is formed in a shape corresponding to the opening on one end of the cylindrical portion 32 in the longitudinal direction, and is formed as a thin plate arranged such that the thickness direction is the longitudinal direction of the cylindrical portion 32. In the illustration, the end cover 38 is formed to cover the end of the sealing and retaining portion 34 at the lower end of the sealing and retaining member 30, in addition to the opening of the cylindrical portion 32.

[0075] In this embodiment, such as Figure 4 As shown, magnet supports 36, 36, having end covers 38, 38 respectively covering the two ends of the cylindrical portion 32 along its length, are installed at both ends of the cylindrical portion 32 with magnets 39, 39 disposed inside the ends of the cylindrical portion 32 along its length. These magnet supports 36, 36 can be installed on the cylindrical portion 32 using appropriate adhesives or other bonding materials, or can be installed in a detachable manner.

[0076] The sealing and retaining member 30 of the above structure is a thin, approximately cuboid shape with a flat outer profile, and is located in the concealed position along the thickness direction of the door. The sealing and retaining member 30 is positioned directly below the side end of the sliding door 10 of the fixing member 20 in the concealed position.

[0077] The width W2 of the sealing and retaining member 30 along the door thickness direction is the portion excluding the sealing portion 35 protruding from the sealing and retaining portion 34. The width W2 of the sealing and retaining member 30 can also be set to an appropriate size so that the magnet 39 can be accommodated within the cylindrical portion 32. The width W2 of the sealing and retaining member 30 only needs to be smaller than the width W1 of the fixing member 20; for example, it can be about 1 / 5 to 4 / 5 of the width W1 of the fixing member 20. In the illustration, an example of about 2 / 5 is shown.

[0078] The sealing and retaining component 30, other than the magnet holder 36, may also have a substantially uniform cross-sectional shape throughout its entire length. The sealing and retaining component 30 may be an extruded product formed from a suitable metallic or synthetic resin material, or it may be formed from a non-magnetic material. The sealing and retaining component 30 is not limited to the structure described above and may also have various other structures.

[0079] The attraction part (13) that attracts the magnet 39 of the sealing and retaining member 30 and puts it in a shielded position is a sliding door side fitting 13 installed at the upper end 10a of the sliding door 10. This sliding door side fitting 13 may also have a gap shielding device 2. If such a structure is adopted, compared with a structure in which the attraction part (13) is embedded in the side of the sliding door 10, for example, by installing the sliding door side fitting 13 at the existing upper end 10a of the sliding door 10, the gap shielding device 2 can be easily added later.

[0080] The sliding door side fitting 13 is fixed along one side 10b of the upper end 10a of the sliding door 10. The sliding door side fitting 13 is positioned on the sliding door 10 such that, when the sliding door 10 is in the closed position, it is located at a position capable of attracting the magnets 39, 39 of the aforementioned sealing retaining member 30. That is, as... Figure 4 As shown, corresponding to the magnets 39, 39 respectively provided at both ends of the sealing and retaining member 30 in the length direction, sliding door side fittings 13, 13 are respectively provided at both ends of the upper end 10a of the sliding door 10 in the door width direction. The sliding door side fitting 13 on the rear side of the door is provided close to the center side in the door width direction so as not to interfere with the rear end of the sliding door 10, which is configured to overlap with the middle longitudinal frame 19 in the door thickness direction in the closed position. These sliding door side fittings 13, 13 on both sides have the same structure, so an example of a specific structure will be described below using one side as an example.

[0081] The sliding door side fitting 13 includes: a protrusion 13a, which protrudes from one side 10b of the sliding door 10, and whose front end face abuts or approaches the cylindrical portion 32 of the sealing and retaining member 30 in the concealed position; and an abutment piece 13b, which abuts along one side 10b of the sliding door 10. The outline of the protrusion 13a is divided by a front end face parallel to one side 10b and an inclined surface face that slopes downward toward one side 10b from both edges of the front end face in the door width direction toward the outside of the door width direction. The abutment piece 13b is provided along one side 10b of the sliding door 10 from the outer end of these inclined surfaces in the door width direction. That is, abutment pieces 13b are provided on both sides of the protrusion 13a in the door width direction. The illustration shows an example where the abutment piece 13b, located on the outer side of the sliding door 10 in the door width direction and near the center in the door width direction, has a larger dimension along the door width direction. This abutment piece 13b has a through hole for a fastener to be inserted into the upper end 10a of the sliding door 10 (see Figure 13b). Figure 2 Furthermore, an example is shown where the through hole is made into an elongated hole extending in the width direction of the door.

[0082] The length dimension along the door width direction, the width dimension along the vertical direction, and the protrusion dimension of the protrusion 13a of the sliding door side fitting 13 can also be set to appropriate dimensions so that the sealing retaining member 30 in the retracted position can be placed in the shielded position by the attraction (magnetic force) of the magnet 39.

[0083] The sliding door side fitting 13 can also be formed from a suitable strong magnetic material such as a steel plate. The sliding door side fitting 13 is not limited to the structure described above, and can also be of various other structures.

[0084] In the aforementioned sliding door device 1, such as Figure 1As shown, when the sliding door 10 is in the open position, the sliding door side fitting 13 and the magnet 39 are in a position offset in the door width direction, that is, the magnet 39 is not attracted by the sliding door side fitting 13, and the sealing retaining member 30 is in the retracted position (see also...). Figure 3 (b)). That is, when the sliding door 10 is in the open position, the sliding door 10 and the sealing part 35 are in a non-contact state. As shown in the example, when there is traction residue in the fully open state, since the sliding door side fitting 13 on the front side is located closer to the front side longitudinal frame 17 than the magnet 39 on the middle longitudinal frame 19 side, the magnet 39 will not be attracted by the sliding door side fitting 13, and the sealing retaining member 30 will be in a retracted position. In addition, when there is no traction residue in the fully open state, the sliding door side fitting 13 on the front side is located closer to the rear side longitudinal frame 18 than the magnet 39 on the middle longitudinal frame 19 side (see Figure 18). Figure 1 Therefore, the magnet 39 will not be attracted by the sliding door side fitting 13, and the sealing retaining component 30 becomes the retracted position.

[0085] On the other hand, such as Figure 4 As shown, when the sliding door 10 is in the closed position, the sliding door side fitting 13 (protrusion 13a) and the magnet 39 are positioned in the same direction in the door width direction. That is, the protrusion 13a of the sliding door side fitting 13 is positioned opposite the magnet 39 inside the cylindrical portion 32 in the door thickness direction. The magnet 39 is attracted by the sliding door side fitting 13 due to magnetic force, and the sealing and retaining member 30 is in the shielded position (see also...). Figure 3 (a) That is to say, when the sliding door 10 is in the closed position, the sliding door 10 is in contact with the sealing part 35.

[0086] If the sliding door 10 in the closed position is slid towards the open side, the sliding door side fitting 13 separates from the magnet 39 and is released from attraction. The sealing retaining member 30 rotates around the connecting part 31 and towards the retracted position due to its own weight, thus entering the retracted position. Conversely, if the sliding door 10 is slid from the open side towards the closed position, the sliding door side fitting 13 approaches the magnet 39, and the magnet 39 is attracted by the sliding door side fitting 13 due to magnetic force, thus the sealing retaining member 30 enters the shielded position. In other words, during the period from the closed position to the slightly open state, the sealing retaining member 30 is in the shielded position under the magnetic force of the magnet 39. That is, including the slightly open state, the sealing retaining member 30 is in the retracted position when it is closer to the open side. When the sliding door 10 is opened and closed, the dimensions of the magnet 39 and the protrusion 13a of the sliding door side fitting 13 along the door width direction can be made smaller so that the shielded position state (between the closed position and the slightly open state) is shorter. It is also possible to make the obstructed position generated when the sliding door 10 is opened and closed less than 100mm. Preferably, the sealing retaining member 30 changes from the retracted position to the obstructed position when the sliding door 10 is in the substantially closed position, so that when the sliding door 10 is closed, it is difficult for the sliding door 10 to be in a half-open state due to the resistance of the sealing retaining member 30 in the obstructed position. For example, it is also possible to make the sealing retaining member 30 change from the retracted position to the obstructed position when the sliding door 10 is closed, when viewed in the depth direction, in a state where there appears to be no gap between the door head side longitudinal frame 17 and the sliding door 10 (for example, from the position where the door head side end face of the sliding door 10 and the depth surface of the door head side longitudinal frame 17 are coplanar to the point where it abuts against the bottom of the receiving groove).

[0087] Next, refer to Figure 5 and Figure 6 Other embodiments of the gap shielding device and the sliding door device having the gap shielding device are described.

[0088] In the following embodiments, the differences from the previously described examples will be mainly explained, the same reference numerals will be used to label the same structures, and their descriptions will be omitted or simplified. In the following embodiments, the effects that are the same as those in the previously described examples will also be omitted or simplified.

[0089] Figure 5 Figures (a) and (b) are schematic diagrams illustrating an example of a gap-shielding device according to the second embodiment and an example of a sliding door device equipped with the gap-shielding device.

[0090] The structure of the gap shielding device 2A in this embodiment and the gap shielding device 2A of the sliding door device 1A having the gap shielding device 2A is different from that in the first embodiment described above.

[0091] In this embodiment, the connecting portion 28 of the connecting sealing and retaining member 30A is provided on the cover 25A. With this structure, the sealing and retaining member 30A is located below the cover 25A, which is held by the retaining portions (22A, 23A) of the fixing member 20A, effectively reducing the width dimension W1A of the fixing member 20A. Furthermore, the cover 25A can be integrated with the sealing portion 35 provided on the sealing and retaining member 30A, thus allowing easy maintenance of the sealing portion 35 by removing the cover 25A from the fixing piece portion 21A.

[0092] The first retaining portion 22A on one end of the fixing piece portion 21A in the width direction is formed as a protruding piece that protrudes from the lower end of the hanging piece portion hanging down from one end of the fixing piece portion 21A in the width direction toward the other end in the width direction. An example is shown in which a locking claw protruding toward the upward side is provided at the front end of the protruding piece. The second retaining portion 23A on the other end of the fixing piece portion 21A in the width direction is formed as a protruding piece that protrudes from the lower end of the hanging piece portion hanging down from the other end of the fixing piece portion 21A in the width direction toward one end in the width direction.

[0093] The first retaining portion 26A on one end of the cover 25A in the width direction protrudes downward, becoming a tab that is retained on the first retaining portion 22A. The second retaining portion 27A on the other end of the cover 25A in the width direction protrudes downward, becoming a tab that is retained on the second retaining portion 23A. The cover 25A is detachably retained on the fixing portion 21A in the same manner as described above.

[0094] The connecting portion 28 is provided on the lower surface side of the cover 25A approximately in the center of the width direction, and in the same way as described above, it constitutes the bearing portion in the shaft portion and bearing portion.

[0095] The sealing and retaining member 30A, like the one described above, has a connected portion 31 at its upper end that forms part of the shaft portion and the bearing portion. The sealing and retaining member 30A, like the one described above, also has a cylindrical portion 32 that houses the magnet 39. In this embodiment, the width dimension W2A of the sealing and retaining member 30A (cylindrical portion 32) is larger than in the example described above. In the illustration, the width dimension W2A of the sealing and retaining member 30A is approximately 7 / 10 of the width dimension W1A of the fixing member 20A.

[0096] In this embodiment, the sealing retaining member 30A is also subjected to force by its own weight towards the retracted position side in the same way as described above, and the magnet 39 is attracted by the sliding door side fitting 13 to become the shielded position.

[0097] Figure 6 Figures (a) and (b) are schematic diagrams illustrating an example of a gap-shielding device according to the third embodiment and an example of a sliding door device equipped with the gap-shielding device.

[0098] The gap shielding device 2B involved in this embodiment and the gap shielding device 2B of the sliding door device 1B having the gap shielding device 2B have different structures from the above embodiments.

[0099] In this embodiment, similar to the second embodiment described above, the connecting portion 28 of the connecting and sealing retaining member 30B is provided on the cover 25B. In this embodiment, the first retaining portion 22B at one end of the fixing piece portion 21B of the fixing member 20B in the width direction is composed of a protruding portion similar to that in the second embodiment described above, and a protruding portion protruding further upward is provided at its front end. The second retaining portion 23B at the other end of the fixing piece portion 21B in the width direction extends downward compared to the embodiments described above, and is formed as a protruding portion provided at the lower end of the hanging piece portion that is provided in a manner covering the connecting portion 28. The first retained portion 26B of the cover 25B is a protruding portion similar to that in the second embodiment described above. The second retained portion 27B of the cover 25B is formed as a protruding portion, and the protruding portion is arranged along the hanging piece portion that is provided in a manner covering the connecting portion 28. In this embodiment, the dimension of the fixing member 20B in the vertical direction is greater than the width dimension W1B of its outline shape.

[0100] The sealing and retaining member 30B is configured to retain the magnet support 36A of the retaining magnet 39 in such a way that the magnet support 36A is exposed on the sliding door 10 side of the cylindrical portion 32A. The magnet support 36A may be provided with an end cover 38, the same as described above, that covers the opening at one end of the cylindrical portion 32A in the longitudinal direction, or the end cover 38 may not be provided.

[0101] Furthermore, in this embodiment, the dimension of the base end of the sealing portion 35A along the door thickness direction is relatively small, and no reinforcing sheet as described above is provided on the sealing retaining portion 34A that holds it. Additionally, the fin-shaped portion of the sealing portion 35A is formed in a curved shape.

[0102] By adopting the structure described above, the width dimension W2B of the sealing retaining member 30B is made relatively small in this embodiment. In the illustration, the width dimension W2B of the sealing retaining member 30B is approximately half the width dimension W1B of the fixing member 20B.

[0103] In this embodiment, the sealing retaining member 30B is also subjected to force by its own weight towards the retracted position side in the same way as described above, and the magnet 39 is attracted by the sliding door side fitting 13 to become the shielded position.

[0104] The different structures of the gap shielding devices 2, 2A, 2B and the sliding door devices 1, 1A, 1B involved in the above embodiments can also be appropriately modified, reorganized or combined as needed.

[0105] In the above embodiments, examples are shown where the sealing retaining members 30, 30A, and 30B are forced towards the retracted position due to their own weight. However, they can also be forced towards the retracted position by means of a suitable force-applying member such as a spring. In this case, the structure of the sealing retaining members 30, 30A, and 30B, and the connecting portions 24 and 28, can be appropriately modified. Alternatively, instead of the sealing retaining members 30, 30A, and 30B being forced towards the retracted position by their own weight and the force-applying member, a structure can be created where the sealing retaining members 30, 30A, and 30B are moved between the retracted position and the concealed position in conjunction with the opening and closing of the sliding door 10 via a suitable linkage mechanism, or a structure where the sealing retaining members 30, 30A, and 30B can be moved between the retracted position and the concealed position manually.

[0106] In the various embodiments described, examples are shown where the sealing portions 35, 35A are freely displaceable in the door thickness direction to a retracted position and a shielded position, but they can also be freely displaced in the vertical direction and held in place on the fixing members 20, 20A, 20B. In this case, the fixing members 20, 20A, 20B can also be provided in a structure in which they are embedded in the upper frame 15, the upper track 16, etc.

[0107] In the various embodiments described, examples are shown in which covers 25, 25A, 25B covering the fastener 6 are provided on the fasteners 20, 20A, 20B, but it is also possible to configure the fasteners 20, 20A, 20B without such covers 25, 25A, 25B.

[0108] In the various embodiments described, an example is shown in which the attraction portion of the attraction magnet 39 of the sealing and retaining members 30, 30A, and 30B is provided as a sliding door side fitting 13 mounted on the upper end 10a of the sliding door 10, but this is not a limited example. For example, a structure in which the attraction portion is embedded in the upper end 10a of the sliding door 10 may also be provided.

[0109] In the various embodiments described, examples are shown where the width dimensions W2, W2A, W2B of the sealing and retaining members 30, 30A, 30B are smaller than the width dimensions W1, W1A, W1B of the fixing members 20, 20A, 20B, but such examples are not limited to.

[0110] In each of the embodiments, an example is shown in which the mounting object of the fixing components 20, 20A, and 20B is set as the upper frame 15, but it can also be any mounting object such as ceiling material or ceiling base.

[0111] In the various embodiments described, an example of a structure in which the sliding door 10 is suspended and held on the upper track 16 is shown, but it can also be a lower-load type in which a rolling element such as a pulley or caster is provided on the lower end side of the sliding door 10 to move a moving object.

[0112] In each of the embodiments, examples are shown of gap shielding devices 2, 2A, 2B being provided in the sliding door devices 1, 1A, 1B, but the gap shielding devices 2, 2A, 2B involved in each embodiment can also be additionally provided to existing sliding door devices as described above.

[0113] The specific structures of the gap shielding devices 2, 2A, 2B and the sliding door devices 1, 1A, 1B constituting the various embodiments are not limited to the structures described above, and various modifications can be made thereto.

[0114] <Postscript> Based on the above description of the embodiments, the following technology is disclosed.

[0115] <Technology 1> A gap-covering device is installed on the upper edge of an opening to cover the gap between the upper end of a sliding door in a closed position and the upper edge of the opening opened and closed by the sliding door, and includes: A sealing retaining component that retains a strip-shaped sealing portion extending along the width of the door; and A fixing component, which freely displaces to retain the sealing component in the direction in which the sealing portion contacts and separates from the upper end of the sliding door, and is fixed to the upper edge of the opening. A magnet is provided in the sealing retaining member, which is attracted by the attraction part provided in the sliding door in such a way that the sealing part abuts against the upper end of the sliding door in the closed position.

[0116] <Technology 2> According to the gap shielding device of Art 1, the magnet is disposed inside the sealing and retaining member.

[0117] <Technology 3> According to the gap shielding device of technology 2, the sealing and retaining member is a hollow cylindrical shape extending in the door width direction.

[0118] <Technology 4> According to the gap shielding device of the technology 3, the sealing and retaining member has a magnet retaining portion inside for retaining the magnet, and the magnet is inserted from an opening at one end of the sealing and retaining member along its length and retained in the magnet retaining portion.

[0119] <Technology 5> According to the gap shielding device of technology 3 or 4, the magnet is held on an end cover that covers the opening at one end of the sealing retaining member in the longitudinal direction.

[0120] <Technology 6> The gap shielding device according to any one of Art 1 to Art 5 includes: a sliding door side fitting, which is installed at the upper end of the sliding door and constitutes the suction part.

[0121] <Technology 7> A sliding door device comprising: a sliding door and a gap shielding device as described in any one of techniques 1 to 6.

Claims

1. A gap shielding device, A gap-covering device is installed on the upper edge of the opening in a manner that covers the gap between the upper end of the sliding door in a closed position and the upper edge of the opening that is opened and closed by the sliding door, characterized in that... have: A sealing retaining component, retaining a long strip-shaped sealing portion extending in the door width direction; and A fixing component, which freely displaces to retain the sealing component in the direction in which the sealing portion contacts and separates from the upper end of the sliding door, and is fixed to the upper edge of the opening. A magnet is provided in the sealing and retaining member, which is attracted by the attraction part provided in the sliding door in such a way that the sealing part abuts against the upper end of the sliding door in the closed position.

2. The gap shielding device according to claim 1, characterized in that, The magnet is disposed inside the sealing and retaining component.

3. The gap shielding device according to claim 2, characterized in that, The sealing and retaining component is a hollow cylindrical shape extending in the door width direction, and has a magnet retaining part inside to retain the magnet; The magnet is inserted into the magnet holding portion by an opening at one end of the sealing and holding member along its length.

4. The gap shielding device according to claim 2, characterized in that, The sealing and retaining component is a hollow cylindrical shape extending in the width direction of the door, and the magnet is held in an end cover that covers the opening at one end of the sealing and retaining component in the length direction.

5. The gap shielding device according to claim 1, characterized in that, have: The sliding door side fitting is installed at the upper end of the sliding door and constitutes the suction part.

6. A sliding door device, characterized in that, have: Sliding doors; and The gap shielding device according to any one of claims 1 to 5.

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