JP6548154B2 - Sliding door device - Google Patents

Description

  The present invention relates to a sliding door device provided with a door.

2. Description of the Related Art Conventionally, there is known a sliding door device provided with a mechanism for assisting traveling of a door which is slidably disposed and opens and closes an opening.
For example, in Patent Document 1 below and Patent Document 2 below, a device is disclosed in which a gear box having a gear meshed with a rack provided on a rail and a spring spring or the like for accumulating elastic force by rotation of the gear is provided in a door. ing.

Patent No. 3960434 gazette Utility model registration 3172882 gazette

  In the case where the above-described assisting mechanism is provided, it is possible to reduce the load when sliding the door to one side. However, when such a mechanism is provided, for example, for various reasons, such as ventilation and the appearance and atmosphere of the space such as a partitioned private room, and the like, for a glimpse of the door etc. It is difficult to stop in position and further improvement is desired.

  The present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide a sliding door device capable of stopping the door while stopping the traveling of the door toward at least one side.

In order to achieve the above object, a sliding door device according to the present invention is slidable, and a door which opens and closes an opening, and a first position side which is at least one of a fully open position side and a closed position side. And a stopper mechanism for releasably stopping the door in an intermediate position against the assistance of the assisting mechanism. The assisting mechanism comprises: A rail which is sloped downward from the second position side, which is a side different from the first position side, toward the first position side so as to guide and assist the runner connected to the door body ; And an uphill guide section for guiding the door to move upward toward the first position at an end on the second position side of the rail, the uphill guide section comprising the first position Uphill towards the side, and the engagement of the door Part is characterized by being configured to engage slidably.

  The sliding door device according to the present invention can stop the door at an intermediate position while enabling the traveling of the door to at least one side with the configuration as described above.

(A)-(c) show an example of the sliding door apparatus which concerns on one Embodiment of this invention typically, and are the partially broken schematic front views which abbreviate | omitted one part. (A) is a partially broken schematic front view schematically showing a state in which an example of the same sliding door apparatus is installed, (b) is a partially broken roughly crossed corresponding to the XX arrow in (a) It is a front view. It is a partially broken schematic longitudinal cross-sectional view made to respond | correspond to YY line | wire arrow in FIG. 2 (a). It is the partially broken schematic disassembled perspective view which abbreviate | omitted a part of same sliding door apparatus. (A) is a partially broken schematic vertical sectional view corresponding to the Z1-Z1 line arrow in FIG. 3, (b) is a partially broken schematic vertical section corresponding to the Z2-Z2 line arrow in FIG. FIG. (A) is a partially broken schematic longitudinal cross-sectional view corresponding to FIG. 5 (a), (b) is a partially broken schematic longitudinal cross-sectional view corresponding to FIG. 5 (b). (A) is a partially broken schematic longitudinal cross-sectional view corresponding to FIG. 5 (a), (b) is a partially broken schematic longitudinal cross-sectional view corresponding to FIG. 5 (b). (A) is a partially broken schematic longitudinal cross-sectional view corresponding to FIG. 5 (a), (b) is a partially broken schematic longitudinal cross-sectional view corresponding to FIG. 5 (b). (A) is a partially broken schematic longitudinal cross-sectional view corresponding to FIG. 5 (a), (b) is a partially broken schematic longitudinal cross-sectional view corresponding to FIG. 5 (b). (A) is a partially broken schematic longitudinal cross-sectional view corresponding to FIG. 5 (a), (b) is a partially broken schematic longitudinal cross-sectional view corresponding to FIG. 5 (b).

Hereinafter, embodiments of the present invention will be described based on the drawings.
In some of the drawings, some of the detailed reference numerals attached to the other drawings are omitted.
Moreover, in the following embodiments, directions such as the vertical direction will be described on the basis of a state in which the sliding door apparatus according to the present embodiment is installed.

1-10 is a figure which shows typically the sliding door apparatus which concerns on this embodiment.
The sliding door device 1 according to the present embodiment has a configuration in which a door 10 for opening and closing an opening 9 serving as an entrance and the like provided in a wall body such as a partition wall is provided slidably as shown in FIGS. It is done.
The sliding door device 1 is not limited to a house, but may be installed in a public facility such as a medical facility or a welfare facility, in a commercial facility, in various stores, in a factory, etc. It is not limited and may be installed outdoors.
The sliding door device 1 further includes an assisting mechanism 2 that assists the traveling of the door 10 to the first position side which is at least one of the fully open position side and the closed position side. In addition, the sliding door device 1 is provided with stopper mechanisms 56 and 57 that releasably stop the door 10 at an intermediate position against the assistance of the assisting mechanism 2.

In the present embodiment, the assisting mechanism 2 is configured to assist the traveling of the door 10 to both the fully open position side and the closed position side. In addition, a stopper mechanism 56 for stopping the door 10 at an intermediate position to stop traveling to the fully open position side by the assisting mechanism 2 and an intermediate position at the middle of the door 10 for which traveling to the closing position is assisted by the assisting mechanism 2 And a stopper mechanism 57 for stopping the motor.
Further, as shown in FIGS. 1 and 4, the assisting mechanism 2 is configured to include a first rail 23 that inclines downward from the longitudinal first end 21 side toward the second end 22 side. . Further, the assisting mechanism 2 is provided in parallel to the first rail 23 and descends from the longitudinal second end 22 side opposite to the first rail 23 toward the first end 21 side. The second rail 26 is provided to be inclined. Further, the assisting mechanism 2 includes runners 41 and 44 slidably guided by the rails 23 and 26, and a holder 30 for holding the door 10 is provided.
Further, in the present embodiment, the assisting mechanism 2 includes the plurality of holding members 30 and 30 for holding the plurality of places spaced in the direction (door width direction) along the rail longitudinal direction of the door 10. And Further, the assisting mechanism 2 is provided with a plurality of first rails 23, 23 and second rails 26, 26 for guiding the runners 41, 44, 41, 44 of the plurality of holders 30, 30 respectively in series. Configuration.

Moreover, in this embodiment, the sliding door apparatus 1 is set as the structure provided with the single door 10 distribute | arranged in the shape of one side. Moreover, in the example of a figure, the example which built the door 10 by the sleeve wall accommodation provided with the sleeve wall 8 is shown. Moreover, the example which built the door 10 in the door frame provided with the upper frame 4, the door side vertical frame 5, the door back side vertical frame 6, and the middle standing (intermediate vertical frame) 7 is shown. The upper side of the opening 9 and the both sides in the opening width direction are defined by the upper frame 4 of the door frame, the vertical frame 5 on the door tip side, and the middle frame 7. Also, the lower side of the opening 9 may be partitioned by the floor surface or may be partitioned by the lower frame.
Further, the door frames 4, 5, 6, 7 may be fixed to an appropriate frame base, and the sliding door device 1 may be provided with the door frames 4, 5, 6, 7. You may make it grasp. Moreover, although the example which made these doorframes 4, 5, 6, 7 fixed frame shape is shown in the example of a figure, it is good also as casing frame shape etc. provided with the casing frame. Alternatively, the opening 9 may be divided by an interior finish surface which is cross-finished without a frame or the like or another finish surface without providing such a door frame.

Further, in the present embodiment, as shown in FIG. 2A and FIG. 3, cover members 60 and 60 respectively cover the sliding door device 1 on both sides in the rail width direction (direction along the door thickness direction) of the assisting mechanism 2. It is considered as having a configuration. These cover members 60, 60 are in the form of a strip (long plate like plate) elongated in the rail longitudinal direction, and a gap between the upper frame 4 and the door 10 to which the rails 23, 26 of the assisting mechanism 2 are attached. It is arranged to cover the That is, these cover members 60, 60 are configured to cover the gap between the expected surface facing the lower side of the upper frame 4 and the upper end surface of the door 10.
As shown in FIG. 2A, the cover member 60 on the non-sleeve wall surface side of the door 10 has a length corresponding to the dimension along the door width direction from the door side vertical frame 5 to the door rear side vertical frame 6 It is assumed to be in size. The cover member 60 on the sleeve wall surface side of the door body 10 has a length corresponding to the dimension along the door width direction from the door front side vertical frame 5 to the middle stand 7 (see FIG. 3).
The cover members 60 and 60 may be fixed to the upper frame 4 or the like by a screw, an adhesive or the like. Further, instead of the aspect in which such cover members 60, 60 are provided, the upper frame 4 may be provided with a cover portion that covers the gap with the door 10, and further, such a cover The assisting mechanism 2 may be exposed without providing the members 60 and 60 and the cover portion.

The door 10 has a substantially rectangular flat shape. Moreover, as shown in FIG. 2, the pulls 11 and 11 are provided in the door thickness direction both sides of the door tip side edge part of the door 10, as shown in FIG. In the present embodiment, the pulls 11 are not in the shape of a digging but in the shape of a bar (bar) extending in the vertical direction. The pulls 11 and 11 have substantially the same configuration, and are provided so as to overlap each other when viewed in the door thickness direction.
In addition, in the state where the door 10 closes the opening 9, these pulls 11 and 11 are provided so as to form a gap where insertion of fingers is possible with the vertical frame 5. Moreover, the pull 11 provided on the sleeve wall surface side of the door 10 is provided in such a manner that a gap allowing insertion of fingers can be formed between the door 10 and the intermediate stand 7 when the door 10 is fully opened. There is. That is, in the fully open state, the door body 10 is arranged such that the part on the door tip side including the pulls 11 and 11 protrudes to the opening 9 side more than the inner side surface facing the opening 9 side of the middle board 7 It is assumed. That is, it is assumed that the door 10 can be erected so as to form a so-called remnant. A lock mechanism capable of locking and unlocking may be provided on the pulls 11, 11 and the like of the door 10.

The door width of the door 10 may be appropriately determined in accordance with the width of the opening 9 so that the opening 9 can be closed. In the present embodiment, the door width dimension of the door 10 is, as shown in FIG. 2B, in the state where the opening 9 is closed, the door butt side end portion of the door 10 is in the door standing direction 7 and the door thickness direction It is dimensioned to look and polymerize. In addition, the opening width of the opening 9 may have an appropriate dimension from the viewpoint of insertion and removal, barrier-free property, etc., and the opening width of the door 10 may be, for example, 750 mm or more or 1000 mm or more. It may be an appropriate dimension according to the remaining dimension.
Further, as shown in FIG. 2A and FIG. 3, the height dimension of the door 10 may be a dimension from the vicinity of the floor surface to the vicinity of each rail 23, 26, for example, about 1800 mm to 2500 mm It may be Moreover, the thickness dimension of the door 10 may be, for example, about 20 mm to 40 mm. Each dimension of such a door 10 may be appropriately set according to the installation location, application, and the like of the sliding door device 1.

Moreover, the sliding door apparatus 1 is provided with the lower end guide member 3 which guides the lower end side of the door 10, as shown in FIG.2 (b) and FIG. In the present embodiment, the lower end portion of the door 10 is provided with a concave groove 12 opened downward along the door width direction, and the lower end guide member 3 is inserted into the concave groove 12 (freely inserted) It is considered to have a configuration.
The lower end guide members 3 are provided at a plurality of locations so as to be located immediately below the movement trajectory of the door 10 moving between the closed position and the fully open position, as shown in FIG. 2B. The lower end guide member 3 may be provided so that at least one is present immediately below the door 10 moving between the closed position and the fully open position. Further, the lower end guide member 3 may be a magnet guide disposed so as to be freely embedded in the floor with the guide pin 3a provided with a magnet so as to be vertically movable. In this case, the concave groove 12 of the door 10 may be provided with a magnet, a magnetic body or the like corresponding to the lower end guide member 3.

In addition, as shown in FIG.2 (b), the lower end guide member 3 grade | etc., Provided in the position which always overlaps with the door 10 which moves between a closed position and a fully open position is a guide made impossible [out of the vertical direction]. It is good also as a fixed guide member provided with a part (guide pin).
Moreover, it is good also as a mode etc. which is not restricted to the aspect which installs the door 10 by sleeve wall accommodation like a figure example, but is stored in a door pocket or an outset. Moreover, it is good also as an aspect which provided the door body 10 of two sheets not only in the aspect which provided the single door body 10 in the one-piece-like shape but provided in the draw shape. In this case, the assisting mechanisms 2 and 2 described later may be provided in pairs so as to assist and assist the traveling of the respective door bodies 10. Further, the opening 9 is not limited to the entrance and the like, and may be an opening 9 for various storages and the like.

The assisting mechanism 2 guides the runners 41 and 44 to the first rail 23 and guides the runners 41 and 44 to the second rail 26 in a state that assists the traveling in the downward direction of the first rail 23 by the load applied to the runners 41 and 44. A switching mechanism 31 is provided which is switched to a state in which the second rail 26 is assisted to travel downward by a load applied to the runners 41 and 44.
In this embodiment, as shown in FIG. 1 and FIG. 3 etc., the runners 41 and 44 are slidably engaged with the first rail 23 and guided so as to slide on the first runner 41 and the second rail 26. And a second runner 44 which is guided by being engaged with the vehicle. Further, the switching mechanism 31 is configured to be switched between a state in which a load is applied to the first runner 41 side and a state in which a load is applied to the second runner 44 side.

Further, in the present embodiment, as shown in FIG. 1, the assisting mechanism 2 includes a pair of holders 30, 30 connected to the upper end sides of the door tip end and the door back end of the door 10, respectively. It is considered to have a configuration. Further, two rail units 20, 20 in which the first rails 23, 23 and the second rails 26, 26 are respectively provided in parallel are guided in the door width direction so as to guide the respective holders 30, 30. Are provided in series along the
The rail units 20, 20 have a length of about half the dimension along the door width direction from the end of the door 10 at the closed position to the end of the door at the fully open position. It is dimensioned and provided in each of the opening 9 side and the sleeve wall 8 side. Further, these rail units 20, 20 are provided so as to be positioned at the same height as each other and at a position coincident with the door thickness direction. That is, the rail units 20 are provided so as to overlap with each other when viewed in the rail longitudinal direction.

The rail unit 20 on the side of the opening 9 brings the first end 21 in the longitudinal direction into contact with or approaches the vertical frame 5 at the door tip side, and the second end 22 in the longitudinal direction is in a position close to the center stand 7 Will be placed on The holder 30 connected to the upper end side of the door tip side end of the door 10 is guided in the rail longitudinal direction by the rail unit 20 on the opening 9 side.
The rail unit 20 on the sleeve wall 8 side brings the first end 21 in the longitudinal direction into contact with or approaches the second end 22 of the rail unit 20 on the opening 9 side, and the second end 22 in the longitudinal direction is a door butt It is disposed in contact with or in proximity to the side vertical frame 6. The holder 30 connected to the upper end side of the end portion on the rear end of the door 10 is guided in the rail longitudinal direction by the rail unit 20 on the side of the sleeve wall 8.

Further, the rail units 20 may be fixed to the upper frame 4 to be mounted by screws, adhesives or the like. In the illustrated example, an example is shown in which the upper frame 4 is provided with a concave groove of a downward opening for receiving the upper portions of the rail units 20, 20 along the longitudinal direction. Instead of such an aspect, the upper frame 4 may be provided with a recessed groove for receiving substantially the whole of the rail units 20, 20, or without providing such a recessed groove, the upper frame 4 The rail units 20 may be attached to the lower surface.
The mechanism 20, 30, 50, 50A for assisting the traveling of the door tip side end of the door 10 including the rail units 20, 20 and the mechanism for assisting the traveling of the door rear end of the door 10 20, 30, 50, and 50A are mutually the same structure in this embodiment. Therefore, hereinafter, the mechanism 20, 30, 50, 50A for assisting the traveling of the one end side of the door tip side will be mainly described as an example.

The first rail 23 and the second rail 26 of the rail unit 20 have an entire length from the first end 21 to the second end 22 of the rail unit 20 such that both longitudinal ends of the rail unit 20 coincide with each other in the longitudinal direction. Provided across the
The first rail 23 is inclined downward as it goes from the first end 21 toward the second end 22. The second rail 26 is inclined downward as it goes from the second end 22 toward the first end 21. In the present embodiment, the first rail 23 and the second rail 26 are provided in parallel in the door thickness direction. Further, the first rail 23 and the second rail 26 are provided in a cross shape when viewed in the door thickness direction. Further, the first rail 23 and the second rail 26 are provided in parallel so that the intersections of the first rail 23 and the second rail 26 are located substantially at the center in the longitudinal direction. Further, the upper edge of the first end 21 of the first rail 23 and the upper edge of the second end 22 of the second rail 26 have the same height, and the second end 22 of the first rail 23 has the same height. The lower edge and the lower edge on the first end 21 side of the second rail 26 are configured to be at the same height (see also FIGS. 5 and 10). Further, in the longitudinal direction both end portions 21 and 22, a part of the first rail 23 and the second rail 26 are configured to overlap each other when viewed in the door thickness direction.

Moreover, in this embodiment, as shown in FIG.3 and FIG.4, it is set as the structure which provided a pair of 1st rails 23 and 23 so that it may be located in the width direction both sides of the 2nd rail 26. FIG. Further, in order to be guided by each of the pair of first rails 23, a pair of first runners 41 is provided on a holder 30 described later.
The pair of first rails 23 and 23 are configured to have guide grooves 24 and 24 respectively opened toward the outside in the door thickness direction. The first rails 23 and 23 include an upper plate portion defining the respective guide grooves 24 and 24, a side plate portion on the inner side in the door thickness direction, and lower plate portions 25 and 25. It is substantially C-shaped (substantially U-shaped).
In the present embodiment, the upper plate portions and the lower plate portions 25 of the first rails 23 are provided in parallel with each other. That is, the upper and lower plate portions 25 and 25 of the first rails 23 and 23 have an inclined shape which goes down from the first end 21 toward the second end 22. In addition, the first rails 23, 23 have a uniform shape over the entire length.

Further, the protrusion dimension along the door thickness direction from the side plate portion of the upper plate portion of these first rails 23, 23 is made larger than the protrusion dimension along the door thickness direction from the side plate portion of the lower plate portions 25 25, . In the illustrated example, an example is shown in which the protrusion dimension of the upper plate portion of the first rail 23 is approximately twice the protrusion dimension of the lower plate portions 25.
The upper surfaces of the lower plates 25, 25 of the first rails 23, 23 serve as guide surfaces (traveling surfaces of the rolling elements 43, 43) of the first runners 41, 41 described later. It is made into the shape of an inclined surface which descends as it goes to the 2 end 22.

The second rail 26 is configured to be provided with a guide groove 27 which opens downward. The second rail 26 includes an upper plate portion defining the guide groove 27, side plate portions on both sides in the door thickness direction, and lower plate portions 28 and 28 projecting in the direction facing each other from lower ends of these side plate portions. Seeing in the direction, it is substantially C-shaped (substantially U-shaped).
In the present embodiment, the upper plate portion and the lower plate portions 28 and 28 of the second rail 26 are provided in parallel with each other. That is, the upper plate portion and the lower plate portions 28 and 28 of the second rail 26 are formed in an inclined shape which goes down from the second end 22 toward the first end 21. Further, the second rail 26 has a uniform shape over the entire length.
Further, the upper surfaces of the lower plate portions 28, 28 on both sides of the second rail 26 become guiding surfaces (traveling surfaces of the rolling elements 46, 46) of the second runner 44 described later, and the second end 22 to the first end It is made into the shape of an inclined surface which descends as it goes to the part 21.

The rail unit 20 including the first and second rails 23, 23 and the second rail 26 joins the first and second rails 23, 23 and the second rail 26, which are separate members, respectively by screws, welding, an adhesive or the like. It may be formed as well. Alternatively, the first rails 23 and 23 and the second rail 26 of the rail unit 20 may be integrally formed. Furthermore, a plurality of (two in the present embodiment) rail units 20 provided in series may be integrally formed.
Further, in the above-described example, the upper plate portion and the lower plate portions 25 25 of the first rails 23 23 are parallel to each other, and the upper plate portion and the lower plate portions 28 28 of the second rail 26 are parallel to each other An example is shown, but the present invention is not limited to such an embodiment. The upper surfaces of the lower plates 25, 25, 28, 28 of the rails 23, 23, 26 may be inclined as described above, and the upper plates of the first rails 23, 23 and the second rail 26 All or any one of the upper plates may be horizontal.

  As shown in FIG. 5, in the present embodiment, the holder 30 has a configuration in which the first runners 41, 41 and the second runner 44 are spaced apart in the rail longitudinal direction. Further, the holder 30 holds the door 10 so as to be slidable in the rail longitudinal direction, and has a switching unit 31 that constitutes a switching mechanism. In addition, the holder 30 moves the door 10 in the rail longitudinal direction with respect to the switching unit 31 so that the load is applied to the first runners 41 and 41 and the load is applied to the second runner 44. Is configured to be switched to. Further, in the present embodiment, the first runners 41 and 41 and the second runners 44 are arranged such that the side on which the load is applied when being assisted in traveling along the rails 23 and 26 is at the top. That is, in the present embodiment, the first runners 41 and 41 are provided on the second longitudinal end 22 side of the holder 30 in the rail longitudinal direction, and the second runners 44 are provided on the first longitudinal end 21 of the rail 30 in the rail longitudinal direction. Configuration.

The switching unit 31 constitutes a holder body, and in the present embodiment, has a hanger shape that holds the door 10 so as to be suspended. The switching unit 31 is disposed to be located almost directly above the door 10. Further, the switching portion 31 is provided with a guide portion 32 with which the engaging portion 14 provided on the door 10 slidably engages. In the present embodiment, an uphill guide portion that guides the guide portion 32 to move the door 10 upward toward the different end portions 22 and 21 at the respective end portions 21 and 22 in the longitudinal direction of the rail unit 20. Is supposed to constitute.
Further, in the present embodiment, the guide portion 32 of the switching portion 31 is in the form of a guide groove which is open in the direction along the door thickness direction and extends in the direction along the rail longitudinal direction. Further, the guide portion 32 is formed into a slit-like guide groove which penetrates in the direction along the door thickness direction and extends in the direction along the rail longitudinal direction. Further, when viewed in a direction along the door thickness direction, the guide portion 32 has both longitudinal end portions formed in a substantially semicircular shape. In addition, a recessed step portion is provided over the entire circumference on the opening periphery of each of the guide thickness direction both sides of the guide portion 32. In other words, at the central portion in the direction along the door thickness direction of the inner circumferential portion of the guide portion 32, a ridge portion extending in the circumferential direction is provided over the entire circumference.

The engaging portion 14 on the door 10 side slidably engaged with and guided by the guide portion 32 is, as shown in FIGS. 4 and 5, an end portion (door end side end portion) in the door width direction. It is provided at the upper end. The engaging portion 14 also functions as a connecting portion that connects the holder 30 and the door 10. A similar engaging portion 14 is provided at the end of the door 10 at the rear end.
In the present embodiment, the engaging portion 14 is shaped like a shaft (cylindrical) along the axial direction in the door thickness direction which is inserted into the guide portion 32 of the switching unit 31 penetrating in the door thickness direction as described above. There is. Further, the rolling elements are engaged with the engaging portions 14 with the recessed steps provided on both sides in the door thickness direction of the guide portion 32 described above, and travel along the upper surface of the recessed steps. It is set as the composition provided. Further, between the rolling elements on both sides in the door thickness direction of the engagement portion 14, shaft portions are provided which are inserted between the upper and lower convex portions of the guide portion 32.
Further, the engaging portion 14 is bridged over a pair of support piece-like connection bases 13 provided so as to protrude upward from the upper end surface of the door 10 and at an interval in the door thickness direction. Provided in

  In addition, as the guide part 32 of the switching part 31, and the engaging part 14 of the door 10, it is not restricted to an above-described aspect. For example, instead of penetrating the guide portion 32 in the door thickness direction, it may be in the shape of a guide groove opened on both sides or one side in the door thickness direction. In this case, the engaging portions 14 of the door 10 may be provided with rolling elements that engage with the guide portions 32 on both sides or one side in the door thickness direction. Further, the guide portion 32 may be configured to be engaged so that the engagement portion 14 of the door 10 is hooked. As the guide portion 32 of the switching portion 31 and the engagement portion 14 of the door 10 slidably engaged with the guide portion 32, various other modifications are possible.

As shown in FIG. 5A, the pair of first runners 41, 41 are located on the upper side of the rail longitudinal second end 22 side portion which is the longitudinal side one side portion of the guide portion 32 of the switching portion 31. Are provided in the same manner as each other.
In addition, these first runners 41, 41 rotate relative to the switching unit 31 around axes along the door thickness direction that are coaxial with each other so as to allow displacement of the switching unit 31 that is displaced as described later. Rocking) is free. In the present embodiment, as shown in FIG. 4, the pair of first connection pieces 39, 39 in which the base portions 42, 42 of the first runners 41, 41 are rotatably connected to the switching unit 31 in the door thickness direction It is set as the structure provided at intervals. The first connection pieces 39, 39 are provided so as to project upward, and are configured such that the base portions 42, 42 of the first runners 41, 41 are rotatably connected to the upper end portions of the first connection pieces 39, 39. .

The base portions 42, 42 of the pair of first runners 41, 41 are provided with rolling elements 43, 43 rolling on the lower plate portions 25, 25 of the pair of first rails 23, 23, respectively. It is done. These rolling elements 43, 43 constitute engaging portions slidably engaged with the first rails 23, 23, and are rotatable about an axis along the axial direction in the door thickness direction. The rolling elements 43 of the first runner 41 on one side in the door thickness direction and the rolling elements 43 of the first runner 41 on the other side in the door thickness direction are provided to have the same diameter and be coaxial with each other.
Moreover, these rolling elements 43 and 43 are provided in the door thickness direction inner side which becomes the side which each base part 42 mutually faces, as shown in FIG.3 and FIG.4. As shown in FIG. 3, the base portions 42 and 42 and the first connection piece portions 39 and 39 are the inner wall of the groove of the groove provided on the upper frame 4 and the lower plate portion 25 of the first rail 23 or 23, It is set as the structure penetrated to the clearance gap between 25 and.

Further, in the present embodiment, a plurality of (two in the illustrated example) rolling elements 43, 43, 43, 43 are provided on each of the first runners 41, 41 at intervals in the rail longitudinal direction. . In the illustrated example, the rolling elements 43, 43, 43, 43 are provided on both sides in the rail longitudinal direction of the connection portion between the base portions 42, 42 of the first runners 41, 41 and the first connection pieces 39, 39, respectively. It has composition.
Further, in the present embodiment, the base portions 42, 42 of the first runners 41, 41 are integrally connected. In the illustrated example, an example is shown in which the first runners 41 and 41 are substantially C-shaped (substantially U-shaped) opening upward as viewed in the longitudinal direction of the rail so as to receive the second rail 26. . That is, a connecting portion for connecting the lower ends of the pair of base portions 42, 42 is provided.

As shown in FIG. 5B, the second runner 44 is provided on the upper side of the rail longitudinal direction first end 21 side region, which is the other longitudinal region side portion of the guide portion 32 of the switching unit 31. ing.
Further, the second runner 44 is rotatable (rocking) with respect to the switching unit 31 around an axis along the door thickness direction so as to allow displacement of the switching unit 31 which is displaced as described later. In the present embodiment, as shown in FIG. 4, the switching portion 31 is provided with a second connection piece portion 40 to which the base portion 45 of the second runner 44 is rotatably connected. The second connection piece portion 40 is provided so as to protrude upward, and the base portion 45 of the second runner 44 is rotatably connected to the upper end portion of the second connection piece portion 40. Further, as shown in FIG. 3, the second connection piece portion 40 is configured to be inserted into the gap between the lower plate portions 28, 28 on both sides of the second rail 26.

Further, on both sides in the door thickness direction of the base portion 45 of the second runner 44, rolling elements 46, 46 rolling on the lower plate portions 28, 28 on both sides of the above-mentioned second rail 26 are provided. These rolling elements 46, 46 constitute an engaging portion slidably engaged with the second rail 26, and are rotatable about an axis along the axial direction in the door thickness direction. The rolling element 46 on one side in the door thickness direction of the base 45 and the rolling element 46 on the other side in the door thickness direction are provided so as to have the same diameter and be coaxial.
Further, in the present embodiment, a plurality of (two in the illustrated example) rolling elements 46, 46, 46, are spaced apart in the longitudinal direction of the rail on both sides in the door thickness direction of the base portion 45 of the second runner 44. 46 is provided. In the illustrated example, rolling elements 46, 46, 46, 46 are provided on both sides in the rail longitudinal direction of the connection portion between the base portion 45 of the second runner 44 and the second connection piece 40.

Further, each rolling element 46 of the second runner 44 and each rolling element 43 of the first runner 41 have the same diameter, and the guide portion 32 of the switching portion 31 displaced as described later has a longitudinal direction The axes are arranged at the same height in a substantially horizontal direction.
As shown in FIGS. 5 and 10, the guide portion 32 of the switching portion 31 in which the first runners 41, 41 and the second runner 44 are spaced apart in the longitudinal direction of the rail in this manner is the longitudinal length of the rail unit 20. In the state of being disposed at the direction both end portions 21 and 22, it is inclined.
That is, as shown in FIG. 5, in the state where the holder 30 is positioned at the first end 21 of the rail unit 20, the rolling element 43 of the first runner 41 is the highest part of the lower plate 25 of the first rail 23. The rolling element 46 of the second runner 44 is positioned near the lowest portion (slope down) of the lower plate portion 28 of the second rail 26. In this position, the guide portion 32 is second due to the height difference between the lower plate portion 25 of the first rail 23 engaged by the first runner 41 and the lower plate portion 28 of the second rail 26 engaged by the second runner 44. It becomes an inclined form (uphill form) which goes up as it goes to the 1st runner 41 side from the runner 44 side.

Further, as shown in FIG. 10, in a state where the holder 30 is positioned at the second end 22 of the rail unit 20, the rolling element 43 of the first runner 41 is the lowest portion of the lower plate 25 of the first rail 23. The rolling elements 46 of the second runner 44 are located in the vicinity of the highest portion (hill top) of the lower plate portion 28 of the second rail 26. In this position, the guide portion 32 is the first due to the difference in height between the lower plate portion 25 of the first rail 23 with which the first runner 41 engages and the lower plate portion 28 of the second rail 26 with which the second runner 44 engages. It becomes an inclined form (uphill form) which goes up as it goes to the 2nd runner 44 side from the runner 41 side.
Further, although the illustration is omitted in a state where the holder 30 is positioned at the central portion in the longitudinal direction of the rail unit 20, the lower plate portion 25 of the first rail 23 and the lower plate portion 28 of the second rail 26 are substantially At the same height, the guide portion 32 has a substantially horizontal shape in which the longitudinal direction is substantially horizontal.

By moving the engaging portion 14 of the door 10 with respect to the guide portion 32, it is possible to switch so that the load of the door 10 is applied to any one of the first runner 41 and the second runner 44. As a result, traveling of the door 10 is assisted.
That is, as shown in FIG. 1A and FIG. 5, in the state where the door 10 is in the closed position and the engaging portion 14 is positioned on the second runner 44 side of the guide portion 32, A large load is applied to the second runner 44 on the door 10. In the closed position, the door 10 is inclined toward the first end 21 because the second rail 26 with which the second runner 44 engages is inclined downward to the first end 21. The movement is inhibited by the vertical frame 5 on the front end side and an appropriate stopper.

Holding the door 10 by moving the door 10 in the closed position as described above from the first end 21 side to the second end 22 with respect to the guide portion 32 of the switching unit 31 It is switched so that the load of the door 10 is applied to the first runner 41 side so that the center of gravity of the tool 30 moves. That is, when the engaging portion 14 of the door 10 is positioned on the first runner 41 side of the guide portion 32, the load of the door 10 is applied to the first runner 41 more than the second runner 44.
That is, as shown in FIGS. 5 to 9, the switching unit 31 is configured such that the inclined guide unit 32 ascends as it goes from the second runner 44 side to the first runner 41 side. By moving the body 10, it is configured to be switched to a state in which a load is applied to the first runner 41 side.
As described above, when the load of the door 10 is applied to the first runner 41 side, the first runner 41 slides in the downward direction of the downhill-like first rail 23 toward the second end 22, and thereby The door 10 is assisted by the load toward the second end 22 which is the open side. In addition, in a state in which the load is applied to the first runner 41 side and the traveling assistance is performed in the downward direction of the first rail 23 in this manner, the first runner 41 becomes the head.

Further, as shown in FIG. 1C and FIG. 10, when the door 10 is in the fully open position in a state where a load is applied to the first runner 41 side, the door 10 has a second end 22 It becomes a state of being assisted so as to move toward the side, but the movement is restrained by the door butt side vertical frame 6 and an appropriate stopper.
If the door 10 thus set to the fully open position is moved from the second end 22 side to the first end 21 side with respect to the guide portion 32 of the switching unit 31 in the reverse of the above, the door It is switched so that the load of the door 10 is applied to the second runner 44 side so that the center of gravity of the holder 30 holding 10 moves. That is, as shown in FIG. 10, the switching unit 31 moves the door 10 so as to move up the inclined guide portion 32 which goes up from the first runner 41 to the second runner 44. The second runner 44 is configured to be switched to a state in which a load is applied to the second runner 44 side.
As described above, when the load of the door 10 is applied to the second runner 44, the second runner 44 slides in the downward direction of the second rail 26 toward the first end 21. The door 10 is assisted by the load toward the first end 21 which is the closing side. In addition, in a state in which the load is applied to the second runner 44 side and the traveling is assisted in the downward direction of the second rail 26 in this manner, the second runner 44 becomes the head.

That is, in the present embodiment, the door body 10 located at any one of the closed position and the fully open position (initial position) is moved along the guide portion 32 to move the guide portion 32 upward. And the travel of the door 10 is assisted by using the potential energy.
The dimension along the rail longitudinal direction of the guide portion 32 described above is appropriately set according to the viewpoint of shortening the moving dimension (initial operation stroke) of the door 10 required for assisting, the door width dimension, etc. You may do so. Further, the inclination angle (initial inclination angle) of the guide portion 32 with respect to the horizontal surface in the closed position and the full open position (the initial inclination angle) and the inclination angle (rail inclination angle) of the lower plate portions 25 and 28 In accordance with the desired degree of assistance of the door 10, the mass of the door 10, the frictional resistance in the rails 23, 26, and the like, it may be set as appropriate.
If the dimension of the guide portion 32 along the rail longitudinal direction is increased, the initial inclination angle can be reduced and the force required for the operation can be reduced, but the initial operation stroke tends to be increased. On the other hand, if the dimension in the rail longitudinal direction of the guide portion 32 is shortened, the initial operation stroke can be reduced, but the initial inclination angle tends to be large, and the force required for the operation tends to be large.

From the above viewpoints, the dimension of the guide portion 32 along the rail longitudinal direction may be less than 1/2 of the door width dimension, or about 1/3 to 1/20 of the door width dimension, and It may be about 1/5 to 1/10. For example, the dimension of the guide portion 32 in the rail longitudinal direction may be set to a dimension such that the initial operation stroke is about 50 mm to 200 mm.
In addition, the mass of the door 10 and each rail 23, so that the door 10 lifted up to the position where the initial inclination angle and the rail inclination angle are assisted is self-propelled without requiring an external force by the load. In accordance with the frictional resistance or the like at 26, it may be set appropriately. For example, from the viewpoint of reducing the operating force at the time of initial operation, the initial inclination angle may be approximately 2 degrees to 20 degrees, preferably approximately 2 degrees to 10 degrees, and more preferably approximately 2 degrees to 7 degrees. It is also good. The rail inclination angle of each rail 23, 26 may be set according to the initial inclination angle of the guide portion 32, the door width dimension of the door 10, etc., and becomes smaller than the initial inclination angle. Just do it.
In addition, the amount of displacement of the door 10 in the vertical direction by which the initial operation stroke and the initial inclination angle are raised from the initial position to a position to be assisted is about 5 mm to 30 mm, preferably about 5 mm to 20 mm, more preferably It may be set appropriately so as to be about 5 mm to 10 mm.

Further, in the present embodiment, the assisting mechanism 2 includes the first lock mechanism 56 that releasably suppresses the movement of the switching unit 31 when moving the door 10 in a state where the load is applied to the first runner 41 side. There is. In the present embodiment, the first lock mechanism 56 is a stopper mechanism that stops the door 10, which is assisted toward the fully open position, at an intermediate position.
Further, the assisting mechanism 2 includes a second lock mechanism 57 that releasably suppresses the movement of the switching unit 31 when moving the door 10 in a state in which a load is applied to the second runner 44 side. In the present embodiment, the second lock mechanism 57 is a stopper mechanism that stops the door 10, which is assisted toward the closing position, at an intermediate position.
In addition, the assisting mechanism 2 maintains the third lock mechanism 47 that releasably maintains the state in which the load is applied to the first runner 41 and the state in which the load is applied to the second runner 44 so as to be releasable. And a fourth lock mechanism 48.
That is, in the present embodiment, the first lock mechanism 56 and the second lock mechanism 57 have the other side of the switching portion 31 in a state in which the door 10 is set to either the closed position or the fully open position (initial position). It is configured to be releasably inhibited to move to the destination. Further, the third lock mechanism 47 and the fourth lock mechanism 48 are configured to releasably maintain the switched state so as to move the center of gravity of the holder 30 that holds the door 10.

Further, in the present embodiment, if the door 10 is moved to the state where the load is applied to the first runner 41 side with respect to the switching unit 31 while the movement of the switching unit 31 is suppressed by the first lock mechanism 56, The third lock mechanism 47 is in a locked state, and the first lock mechanism 56 is released. That is, as shown in FIG. 1B, the first lock mechanism 56 is configured to be released when the door 10 stopped at the halfway position is moved toward the fully open position.
Further, in the present embodiment, when the door 10 is moved slightly further after the third lock mechanism 47 is brought into the lock state, the first lock mechanism 56 is released.
In addition, the third lock mechanism 47 is released when the door 10 is moved such that the first lock mechanism 56 is released and the movement of the switching unit 31 is suppressed by the second lock mechanism 57. And

On the other hand, if the door 10 is moved to the state where the load is applied to the second runner 44 side with respect to the switching unit 31 while the movement of the switching unit 31 is suppressed by the second lock mechanism 57, the fourth locking mechanism 48 Is locked and the second lock mechanism 57 is released. That is, as described above, the second lock mechanism 57 is configured to be released when the door 10 stopped at the middle position is moved toward the closing position.
Further, in the present embodiment, when the door 10 is moved slightly further after the fourth lock mechanism 48 is brought into the lock state, the second lock mechanism 57 is released.
In addition, the fourth lock mechanism 48 is released when the door 10 is moved such that the second lock mechanism 57 is released and the movement of the switching unit 31 is suppressed by the first lock mechanism 56. And
That is, in the present embodiment, the lock mechanism 56, 57, 47, 48 is locked and released along with the movement of the door 10.

As shown in FIG. 1, in the present embodiment, the first lock mechanism 56 and the second lock mechanism 57 are provided on the side of the first end 21 and the side of the second end 22 of the rail unit 20.
In the first lock mechanism 56 and the second lock mechanism 57, as shown in FIGS. 5A and 10A, the lock portions 33 and 34 provided on the switching portion 31 (the holder 30) are provided. Locking portions 56 b and 57 b are provided which engage and restrain movement of the switching portion 31. Further, the door 10 is provided with a release portion 16 for releasing the engagement of the lock portions 56b and 57b of the first lock mechanism 56 and the second lock mechanism 57 with the locked portions 33 and 34 of the switching portion 31. .
The first lock mechanism 56 and the second lock mechanism 57 are fixed to the respective end portions 21 and 22 in the longitudinal direction of the rail unit 20, the door frames 4, 5 (6) and 7, the housing (attachment base), etc. The first lock unit 50 and the second lock unit 50A are provided.
In addition, the first lock unit 50 provided on the first end 21 side and the second lock unit 50A provided on the second end 22 side, including the lock mechanisms 56 and 57 provided thereon, are It is symmetrical (linearly symmetrical with the longitudinal center line of the rail unit 20 as the axis of symmetry).

In the present embodiment, each of the first lock mechanism 56 and the second lock mechanism 57 is rotatably held around the shafts 52, 52 along the door thickness direction with respect to the lock units 50, 50A, and has a lever shape. The first lock lever 56 and the second lock lever 57 are used.
The first lock lever 56 and the second lock lever 57 are disposed on one side in the door thickness direction of the switching unit 31. The first lock lever 56 and the second lock lever 57 are elongated in the rail longitudinal direction, and have substantially the same length as the length of the switching portion 31 along the rail longitudinal direction.
The first lock lever 56 is provided with a lock portion 56b at an end on the first end 21 side, and a released portion 56d released to the release portion 16 of the door 10 at an end on the second end 22 side. Is provided. In the present embodiment, as shown in FIG. 4 and FIG. 5A, the lock portion 56 b is opened toward the first end 21 side and the upper side which is the longitudinal outer side of the first lock lever 56. It has a concave shape provided in the form of a notch. Further, the portion to be released 56d protrudes downward, and has a convex shape that is tapered toward the lower side when viewed in the door thickness direction. That is, the rail longitudinal direction both side surfaces of this to-be-released part 56d are made into the inclined surface which inclines in the direction which mutually approaches as it goes below.

Further, the first lock lever 56 has a structure in which a bearing hole 56a serving as a rotation center is provided at a midway portion in the longitudinal direction (in the example, the substantially central portion in the longitudinal direction). The first lock unit 50 is provided with a shaft 52 which is inserted through the bearing hole 56a. The first lock unit 50 may be provided with a bearing hole, and the first lock lever 56 may be provided with a shaft.
Further, the first lock unit 50 is provided with a biasing member 55 for biasing the first lock lever 56 toward the lock side. In the illustrated example, the biasing member 55 is a tension coil spring held by the spring holding portion 54 of the first lock unit 50 so as to bias the portion closer to the lock portion 56b than the bearing hole 56a upward. There is.
Further, the first lock unit 50 is provided with a restricting portion 53 which restricts the rotation of the first lock lever 56. In the present embodiment, a pin-shaped restricted portion provided so as to project the restricting portion 53 toward one side in the door thickness direction at a portion closer to the lock portion 56b than the bearing hole 56a of the first lock lever 56. It has a long hole shape with a long diameter at the top and bottom to receive 56c. The restricting portion 53 is configured to prevent further rotation of the first lock lever 56 biased by the biasing member 55 to the lock side. The spring holding portion 54, the restricting portion 53, and the shaft portion 52 are provided on the plate-like portion of the first lock unit 50 provided on one side of the first lock lever 56 in the door thickness direction. Further, the lower end portion of the biasing member 55 is connected to the restricted portion 56c of the first lock lever 56, and the upper end portion is connected to and held by the spring holding portion 54.

As shown in FIG. 10A, the second lock lever 57 is configured as if the first lock lever 56 is horizontally reversed. That is, the second lock lever 57 is provided with the same concave stepped lock portion 57b at the end on the second end 22 side, and the release portion of the door 10 at the end on the first end 21 side. It is set as the structure provided with the above-mentioned convex to-be-released part 57d similarly released to 16th. Further, the same bearing hole as described above in which the same shaft 52 as the above provided in the second lock unit 50A is inserted at a midway portion in the longitudinal direction of the second lock lever 57 (in the example, substantially central portion in the longitudinal direction). 57a is provided. In the same manner as described above, the second lock unit 50A may be provided with a bearing hole, and the second lock lever 57 may be provided with a shaft.
Further, the second lock unit 50A is provided with the same biasing member 55 for biasing the second lock lever 57 to the lock side and a spring holding portion 54 for holding the same.
Further, the second lock unit 50A is provided with the same restricting portion 53 for receiving the same restricted portion 57c provided to the second lock lever 57 as described above.
In addition, a compression coil spring that biases the biasing member 55 that biases the first lock lever 56 and the second lock lever 57 toward the lock side, so as to push up an appropriate portion on the lock portions 56 b and 57 b upward. It may be as well.

  In the switching portion 31 of the holder 30, the first locked portion 33 engaged with the lock portion 56b of the first lock lever 56 and the second locked portion 34 engaged with the lock portion 57b of the second lock lever 57. And are provided. The first locked portion 33 and the second locked portion 34 are provided in a pair so as to be located on both sides in the longitudinal direction of the guide portion 32 of the switching portion 31. The first locked portion 33 is provided at an end of the switching portion 31 on the first end 21 side, and the second locked portion 34 is provided at an end of the switching portion 31 on the second end 22 side. There is. In the present embodiment, as shown in FIG. 4, the first locked portion 33 and the second locked portion 34 are shaped like pins projecting toward one side in the door thickness direction.

Moreover, the release part 16 provided in the door 10 is made into the pin shape which protrudes toward the door thickness direction one side, as shown in FIG. In the present embodiment, the release portion 16 is used as both a lock release of the first lock lever 56 and a lock release of the second lock lever 57.
The release portion 16 is configured to abut on the to-be-released portions 56d and 57d so as to rotate the first lock lever 56 and the second lock lever 57 to the lock release side.
Further, the release portion 16 is provided at the connection base 13 provided at the upper end of the end (door end side end) of the door 10 in the door width direction. Further, the release portion 16 is provided so as to be located substantially directly below the shaft-like engaging portion 14 provided on the connection base 13 when viewed in the door thickness direction. A similar release portion 16 is provided at the end of the door 10 at the rear end.

  In addition, it replaces with the aspect which provided the combined release part 16 which performs the lock release of the 1st lock lever 56, and the lock release of the 2nd lock lever 57 in the door 10, The release part which performs the lock release of the 1st lock lever 56 And a release unit for releasing the lock of the second lock lever 57 may be provided. For example, a release portion for releasing the lock of the first lock lever 56 is provided on one side of the engaging portion 14 in the door width direction, and the second lock lever 57 is released on the other side of the engaging portion 14 in the door width direction. It is good also as a mode provided with the cancellation part which performs. In this case, the lengths or the like of the first lock lever 56 and the second lock lever 57 may be appropriately modified. Further, the release portion 16 of the door 10, the locked portions 33 and 34 of the switching portion 31, and the first lock mechanism (lever) 56 and the second lock mechanism (lever) 57 are not limited to the above-described example, and various modifications may be made. Is possible.

The 3rd lock mechanism 47 and the 4th lock mechanism 48 are provided in switching part 31 as shown in Drawing 4 and Drawing 5 (b).
A state in which a load is applied to the first runner 41 side or the second runner 44 side by engaging the locked portions 15 provided to the door 10 with the third lock mechanism 47 and the fourth lock mechanism 48 ( Lock portions 47 b and 48 b are provided to maintain the load switching state. Further, on the first end 21 side and the second end 22 side of the rail unit 20, the lock portions 47b and 48b of the third lock mechanism 47 and the fourth lock mechanism 48 with respect to the lock portion 15 of the door 10 respectively. The release part 51, 51A which cancels engagement of is provided.
Further, the third lock mechanism 47 provided on the second end 22 side of the switching unit 31 and the fourth lock mechanism 48 provided on the first end 21 side are symmetrical (the guide portion of the switching unit 31 32) is a line symmetrical with the longitudinal center line as the axis of symmetry.

In the present embodiment, each of the third lock mechanism 47 and the fourth lock mechanism 48 is rotatably held around a shaft 37, 38 along the door thickness direction with respect to the switching unit 31, and has a third lever shape. The lock lever 47 and the fourth lock lever 48 are used.
The third lock lever 47 and the fourth lock lever 48 are provided on the other side of the switching portion 31 in the door thickness direction, and are elongated in the longitudinal direction of the guide portion 32. Further, lock shafts 37, 38 provided in a pair on the upper side portion of the longitudinal central portion of the guide portion 32 are provided at the end portions of the third lock lever 47 and the fourth lock lever 48 near the longitudinal direction. Bearing holes 47a and 48a to be inserted are provided. The lock shaft 37 of the third lock lever 47 is provided closer to the second end 22 than the longitudinal centerline of the guide portion 32, and the lock shaft 38 of the fourth lock lever 48 is a longitudinal centerline of the guide portion 32. It is provided on the side of the first end 21 rather than the first end 21. A shaft may be provided in the third lock lever 47 and the fourth lock lever 48, and a bearing hole may be provided in the switching unit 31.

  Further, the third lock lever 47 and the fourth lock lever 48 are provided with the lock portions 47b and 48b in the middle in the longitudinal direction, and released to the release portions 51A and 51 at the end (free end) on the remote side in the longitudinal direction. The parts to be canceled 47e and 48e are provided. In the present embodiment, the lock portions 47 b and 48 b are formed in the shape of a recessed step provided so as to be open toward one side and the lower side in the door thickness direction. Further, the lock portions 47b and 48b are elongated in the longitudinal direction of the third lock lever 47 and the fourth lock lever 48, and the surface facing toward one side in the door thickness direction, the surface facing downward, and the longitudinal direction. The example divided by the surface which turns to the direction to follow is shown. In the lock portions 47b and 48b, the door 10 is in the rail longitudinal direction with respect to the switching portion 31 (retainer 30) so that the first lock lever 56 or the second lock lever 57 can be released in the locked state. It is formed to be slightly movable in the direction. The movable dimensions of the door 10 with respect to the switching portion 31 when the lock portions 47b and 48b are in the locked state are appropriate so that the first lock lever 56 or the second lock lever 57 is released in the locked state. For example, it may be about 5 mm to 20 mm.

Further, as shown in FIGS. 5 (b) and 10 (b), these lock portions 47b and 48b are provided so as to be polymerizable when viewed in the door thickness direction with each of the longitudinal direction both end portions of the guide portion 32. ing.
Further, the surfaces of the lock portions 47b and 48b facing the remote side end sides are set as release guide surfaces 47c and 48c that are inclined in the direction in which they approach each other as they go downward.
The release guide surface 47c of the third lock lever 47 is in the form of an inclined surface facing obliquely downward to the second end 22 side, and is a door stopped in the middle position by the first lock lever 56 and assisted to the fully open position side 10 is provided to allow movement to the closed position side.
The release guide surface 48c of the fourth lock lever 48 is in the form of an inclined surface facing obliquely downward to the first end 21 side, and is a door stopped in the middle position by the second lock lever 57 and assisted to the closed position side It is provided to allow movement to the 10 fully open position side.
Further, the to-be-canceled portions 47 e and 48 e are in the form of protrusions projecting toward the other side in the door thickness direction of the third lock lever 47 and the fourth lock lever 48. Further, flat portions which are parallel to the longitudinal direction of the lock levers 47 and 48, and slopes which are inclined so as to rise from the flat portions toward the remote side. It is set as the structure provided with one part. The flat piece portions of the portions to be released 47e and 48e are provided so as to overlap with the lock portions 47b and 48b in the door thickness direction.

Further, although not shown, the switching portion 31 is provided with an urging member for urging the third lock lever 47 and the fourth lock lever 48 to the lock side. The biasing members of the third lock lever 47 and the fourth lock lever 48 may be any members that bias the free end side downward, for example, provided around the lock shafts 37 and 38. It may be a torsion spring, an appropriate coil spring or the like.
Further, the switching portion 31 is provided with stopper portions 35 and 36 for suppressing further rotation of the third lock lever 47 and the fourth lock lever 48 biased by the biasing member to the lock side. In the present embodiment, the third lock stopper 35 for suppressing the rotation of the third lock lever 47 and the fourth lock stopper 36 for suppressing the rotation of the fourth lock lever 48 are provided on both sides in the longitudinal direction of the guide 32. It is provided in pairs to be located. Further, the third lock stopper portion 35 and the fourth lock stopper portion 36 are formed in a pin shape that protrudes toward the other side in the door thickness direction (see FIG. 4). Further, the third lock stopper portion 35 is provided substantially coaxially with the second locked portion 34 provided at the end portion of the switching portion 31 on the second end 22 side, and the fourth lock stopper portion 36 is provided as the switching portion It is set as the structure provided substantially coaxially with the 1st to-be-locked part 33 provided in the edge part by the side of the 1st edge part 21 of 31. FIG.

The third lock lever 47 and the fourth lock lever 48 are provided with contact pieces 47 d and 48 d that abut on the third lock stopper 35 and the fourth lock stopper 36. The contact pieces 47 d and 48 d are provided at free ends of the third lock lever 47 and the fourth lock lever 48 so as to protrude toward one side in the door thickness direction.
The third lock lever 47 and the fourth lock lever 48 are urged toward the lock side by their own weights without providing an urging member for urging the third lock lever 47 and the fourth lock lever 48 toward the lock side. It may be done.

The locked portion 15 of the door 10 locked by the third lock lever 47 and the fourth lock lever 48 protrudes toward the other side in the door thickness direction as shown in FIG. It is in the shape of a pin that can be inserted into the portions 47b and 48b. In the present embodiment, the locked portion 15 is shared with the third lock lever 47 and the fourth lock lever 48. Further, the locked portion 15 is provided on the connection base 13 provided at the upper end of the end in the door width direction (the end on the door tip side) of the door 10. Further, the lock portion 15 is provided substantially coaxially with the shaft-like engagement portion 14 provided on the connection base 13.
The release guide surfaces 47 c and 48 c described above are provided to allow the movement of the locked portion 15. A similar locked portion 15 is also provided at the end of the door 10 at the rear end.

  The release portions 51A, 51 for releasing the lock of the third lock lever 47 and the fourth lock lever 48 are in the form of pins extending in the axial direction in the door thickness direction. In the present embodiment, as shown in FIG. 10B, the second lock unit 50A is provided with a third lock release portion 51A for releasing the lock of the third lock lever 47. Further, as shown in FIG. 5 (b), the first lock unit 50 is provided with a fourth lock release portion 51 for releasing the lock of the fourth lock lever 48. The third lock release portion 51A and the fourth lock release portion 51 are provided on the other side in the door thickness direction of the third lock lever 47 and the fourth lock lever 48, respectively. It is provided in the plate-like part on the other side of the direction so as to protrude toward one side in the door thickness direction (see FIG. 4).

  In the above example, the locked portion 15 of the door 10 is used as a dual purpose lock that is locked to each of the third lock lever 47 and the fourth lock lever 48, but it is locked separately Alternatively, a pair of locked portions 15 may be provided. Further, the locked portion 15 of the door 10, the release portions 51 and 51A provided on the first end 21 side and the second end 22 side of the rail unit 20, and the third lock mechanism (lever) 47 and the The four lock mechanism (lever) 48 is not limited to the above-described example, and various modifications are possible.

Next, an example of the opening / closing operation of the door 10 of the sliding door device 1 configured as described above will be described with reference to FIGS.
As shown in FIG. 5A, the holder 30 positioned on the first end 21 side of the rail unit 20 when the door 10 is in the closed position is the second end 22 of the rail unit 20 by the first lock lever 56. Movement to the side is suppressed. In other words, the holder 30 is engaged such that the first locked portion 33 of the switching portion 31 is received by the lock portion 56b of the first lock lever 56, and movement to the second end 22 side is suppressed. It is.

  Moreover, as shown in FIG.5 (b), the door 10 made into the closed position is a guide with respect to the switching part 31 of the holder 30 by which the movement to the 2nd end 22 side was suppressed as mentioned above. It is movable along the portion 32 toward a state where a load is applied to the first runner 41 side. That is, when the door 10 is in the closed position, the flat piece of the released portion 48e of the fourth lock lever 48 is held on the fourth unlocking portion 51 of the first lock unit 50, and the lock 48b is the door It is positioned on the upper side of the lock portion 15 of 10 and is in the unlocked state. As described above, even when the fourth lock lever 48 is unlocked, as described above, since the guide portion 32 is uphill from the second runner 44 to the first runner 41 in the closed position, The state where the load is applied to the second runner 44 side is maintained. Further, in this state, the contact piece 47d of the third lock lever 47 is held in contact with the third lock stopper 35 of the switching unit 31, and the lock 47b is seen in the door thickness direction. It is positioned to overlap the end on the two end 22 side, and is in a lockable state.

  As described above, when the door 10 in the closed position is moved to the open side, as shown in FIGS. 5A and 6A, the release portion 16 of the door 10 is the first lock lever. It moves while approaching or abutting along the lower side of 56. Further, as shown in FIGS. 5B and 6B, the locked portion 15 of the door 10 moves while approaching or abutting along the lower side of the fourth lock lever 48 and the third lock lever 47. Do. At this time, the locked portion 15 of the door 10 moves so as to push up the free end of the third lock lever 47 which is in the lockable state against the biasing force of the biasing member of the third lock lever 47. Do. Then, as shown in FIG. 7B, when the locked portion 15 of the door 10 reaches the lock portion 47b of the third lock lever 47, the third lock lever 47 biased by the biasing member is on the lock side. And the locked portion 15 is engaged with the lock portion 47b, and the third lock lever 47 is locked. As a result, the load is maintained on the first runner 41 side.

Further, when the door 10 is stopped when the third lock lever 47 is brought into the locked state in this manner, as shown in FIG. 7A, the first lock lever 56 is in the locked state. The movement of the body 10 to the fully open position can be suppressed. That is, the load is applied to the first runner 41 side, and the door 10 supported to the fully open position side can be stopped at an intermediate position (see also FIG. 1 (b) and FIG. 2 (a)). In other words, in this state, a part of the opening 9 is in an open half-opened state. In this way, a mark may be provided at an appropriate position as a reference for stopping the door 10 at an intermediate position, or a mechanism for giving a sense of moderation may be provided.
Further, in this state, when the door 10 is moved toward the closing position, the third lock lever 47 is rotated to the unlocking side by the locked portion 15 moving to the closing side while in contact with the release guide surface 47c. Then, the door 10 is unlocked and the door 10 can be moved to the closed position side.

  Further, when the door 10 is further moved slightly to the open side after the third lock lever 47 is in the locked state, as shown in FIG. 8A, the released portion 56d of the first lock lever 56 is The to-be-released part 56d is pushed up to the releasing part 16 of the door 10 by the guide action of the inclined surface, and the first lock lever 56 rotates to the unlocking side. That is, the first lock lever 56 rotates about the shaft 52 against the biasing of the biasing member 55 so that the lock 56 b moves downward, and the first lock lever 33 with respect to the first locked portion 33 of the holder 30 The lock of the lock portion 56b is released. As a result, as shown in FIGS. 9A and 9B, it is possible to move the holder 30 positioned on the first end 21 side to the second end 22 side. In addition, since the load is applied to the first runner 41 side, the holder 30 and the door 10 are assisted toward the second end 22 side (open side) to lower the first rail 23. (Self-propelled). Further, when the door 10 moves to the open side in this manner, the released portion 48 e of the fourth lock lever 48 is separated from the fourth unlocking portion 51 of the first lock unit 50. Thereby, the contact piece portion 48d of the fourth lock lever 48 is held in contact with the fourth lock stopper portion 36 of the switching portion 31 and the first end portion of the guide portion 32 when the lock portion 48b is seen in the door thickness direction It is positioned so as to overlap the end on the side 21 and is in a lockable state.

  In addition, although the illustration is omitted if the holder 30 reaches near the second end 22 with the movement of the door 10 to the opening side (self-propelled), the second lock of the holder 30 is not shown. The portion 34 moves along the upper side of the second lock lever 57 while approaching or abutting. Further, the second locked portion 34 of the holder 30 moves against the biasing of the biasing member 55 while pushing down the lock portion 57b side portion of the second lock lever 57, and the door 10 is brought to the fully open position. For example, the second locked portion 34 of the holder 30 engages with the lock portion 57 b of the second lock lever 57. That is, when the second locked portion 34 of the holder 30 reaches the lock portion 57b of the second lock lever 57, the biasing member 55 causes the second lock lever 57 to rotate to the lock side, as shown in FIG. It will be in the locked state. Thereby, the movement to the 1st end 21 side of holder 30 located in the 2nd end 22 side is controlled.

In addition, when the holder 30 reaches the vicinity of the second end 22 along with the movement of the door 10 to the open side (self-propelled) as described above, the inclined piece portion of the to-be-canceled portion 47e of the third lock lever 47 It abuts on the third unlocking portion 51A. Then, the free end of the third lock lever 47 is rotated to be pushed up to the third lock release portion 51A by the guide action of the inclined piece portion of the portion to be released 47e. Furthermore, when the door 10 is in the fully open position, as shown in FIG. 10B, the flat piece of the portion to be released 47e is held by the third unlocking portion 51A, and the lock 47b is closed by the door 10 It is located on the upper side of the lock portion 15, and the lock of the third lock lever 47 is released. As described above, even when the third lock lever 47 is unlocked, as described above, since the guide portion 32 is uphill from the first runner 41 to the second runner 44 in the fully open position, The state where the load is applied to the first runner 41 side is maintained.
Further, the door 10 thus brought into the fully open position is secondly moved along the guide portion 32 with respect to the switching portion 31 of the holder 30 whose movement toward the first end portion 21 is restrained as described above. It is movable in the direction of applying a load to the runner 44 side.

Also, when moving the door 10 in the fully open position to the closing side as described above, the locked portion 15 is moved along with the movement of the door 10, and the locked portion 15 is the locking portion 48b in the same manner as described above. And the fourth lock lever 48 is locked. As a result, a load is maintained on the second runner 44 side. Further, as described above, when the door 10 is stopped when the fourth lock lever 48 is in the locked state, the second lock lever 57 is in the locked state, so that the door 10 is moved to the closing position side. It can be deterred. That is, the load is applied to the second runner 44 side, and the door 10 assisted to the closing position side can be stopped at the middle position. In this state, if the door 10 is moved toward the fully open position, the fourth lock lever 48 is rotated to the unlocking side by the guide action of the release guide surface 48c and the lock is released as described above. Can be moved to the fully open position side.
Also, if the door 10 is further moved slightly toward the closing side after the fourth lock lever 48 is in the locked state, the second locked portion of the holder 30 is moved by the movement of the release portion 16 in substantially the same manner as described above. The lock of the lock portion 57b of the second lock lever 57 with respect to 34 is released. Thereby, the movement to the 1st end 21 side of the holder 30 located in the 2nd end 22 side is attained. In addition, since the load is applied to the second runner 44 side, the holder 30 and the door 10 are assisted toward the first end 21 side (closing side) so as to lower the second rail 26. (Self-propelled). In addition, when the door 10 moves to the closing side in this manner, the third lock lever 47 is separated from the third unlocking portion 51A and is in a lockable state, as in the above.

In addition, when the holder 30 reaches the vicinity of the first end 21 along with the further movement of the door 10 to the closing side (self-propelled), the first locked portion 33 of the holder 30 is substantially the same as described above. It engages with the lock portion 56 b of the first lock lever 56. That is, the first lock lever 56 is in the locked state, and movement of the holder 30 located on the first end 21 side to the second end 22 side is suppressed.
In addition, when the holder 30 reaches the vicinity of the first end 21 along with the movement of the door 10 to the closing side (self-propelled) as described above, the released portion 48e of the fourth lock lever 48 is substantially the same as described above. The inclined piece abuts on the fourth unlocking portion 51, and the lock of the fourth lock lever 48 is released.
The release guide surfaces 47c and 48c also function as release parts for releasing the engagement of the lock parts 47b and 48b with the locked parts 15 of the door 10, and the parts to be released 47e and 48e and the lock release parts 51 and 51A. May not be provided.

The sliding door device 1 according to the present embodiment can stop the door 10 at an intermediate position while providing assistance for the traveling of the door 10 to at least one side by adopting the configuration as described above. .
That is, the configuration includes the assisting mechanism 2 that assists the traveling of the door 10 to the first position side which is at least one of the fully open position side and the closed position side. Therefore, when sliding the door 10 to the first position side, traveling of the door 10 can be assisted, and the burden on the operator can be reduced.
Further, a stopper mechanism (first and second lock levers) 56 and 57 is provided to releasably stop the door 10 at an intermediate position against the assistance of the assistance mechanism 2. Therefore, it is possible to stop the door 10 whose traveling is assisted to the first position side at a halfway position, and to make it so-called a half-opened state. This is a sliding door device 1 that opens and closes the opening 9 of a private room such as a medical facility or welfare institution, which often causes a situation or sign of space in a compartment such as a private room when it is desired to ventilate. Is also suitable.

  Further, in the present embodiment, the stopper mechanism (the first lock lever and the second lock lever) 56, 57 can be released by moving the door 10 stopped at an intermediate position toward the first position. And Therefore, if the door 10 is moved toward the first position and the stop is released, the traveling of the door 10 can be assisted by the assisting mechanism 2 toward the first position. Thereby, for example, the ease of use can be improved as compared with the case where it is necessary to manually operate the operation unit that releases the stop by the stopper mechanisms 56 and 57.

  Further, in the present embodiment, the assisting mechanism 2 is configured to allow movement of the door 10 stopped at the middle position to the second position side which is a side different from the first position side. Therefore, the door 10 stopped at the halfway position can be moved to the second position side which is a side different from the side assisted by the assisting mechanism 2. Thereby, for example, usability can be improved as compared with the case where the assisting mechanism 2 locks the door 10 immovably to the second position side.

  Further, in the present embodiment, the rails 23 and 26 in which the assisting mechanism 2 is sloped downward from the second position side to the first position side, and the end portions on the second position side of the rails 23 and 26 An uphill guide portion (guide portion) 32 for guiding the door 10 to move upward toward the 1 position side is provided. Therefore, as described above, when the door 10 is slid along the guide portion 32, the runners 41, 44 travel down the rails 23, 26, and move to the first position side. The traveling of the housing 10 can be assisted. As a result, the structure of the relatively long rails 23, 26 is simplified, for example, as compared with a structure in which a rack and a drive mechanism such as a gear or a spring or a mechanism for tilting the rail itself are provided as an assisting mechanism. It is possible to improve durability and mountability.

  Further, in the present embodiment, the runners 41, 44, 41 and 44 are connected in a pair to the both ends of the door 10 in the door width direction, and the rails 23, 26, 23 and 26 of the assisting mechanism 2 are It is provided in a pair so as to guide each of the pair of runners 41, 44, 41 and 44. Therefore, the traveling of the door 10 can be stably guided and assisted. Further, the guide portions 32, 32 of the assisting mechanism 2 are provided in a pair so as to guide both end sides of the door 10 in the door width direction. Therefore, it can be stably guided even when sliding the door 10 to move up.

Further, in the present embodiment, the assisting mechanism 2 is configured to assist the traveling of the door 10 to both the fully open position side and the closed position side. Therefore, when sliding the door 10 to both the fully open position side and the closed position side, traveling of the door 10 can be assisted, and the burden on the operator can be reduced.
Moreover, it is set as the structure which provided the 1st rail 23 and the 2nd rail 26 in the mutually opposite side in the slope shape. In addition, a switching mechanism (the state in which the runners 41 and 44 of the holder 30 that holds the door 10 are assisted in traveling in the direction downward to the first rail 23 and the state assisted in traveling in the downward direction of the second rail 26 ( A switching unit) 31 is provided. Therefore, when traveling the door 10 along the longitudinal direction of the rails 23 and 26 with a simple configuration, it can be assisted by the inclination of the rails 23 and 26, so to say, it can travel semiautomatically. Can.

In addition, it is good also as a structure provided with the connection member which connects a pair of holding tools 30 and 30 comrades of the door width direction both ends of the door 10 to each other. In this case, the single first lock lever 56 and the single second lock lever 56 that inhibit the movement of the switching units 31 and 31 when moving the door 10 so as to move the center of gravity of the holders 30 and 30. The lock lever 57 may be provided. In other words, it is possible to suppress the movement of each of the switching portions 31, 31 when moving the door 10 in a state where a load is applied to the first runners 41, 41 by the single first lock lever 56. It is also good. In addition, even when the door body 10 is moved in a state where a load is applied to the second runners 44, 44, the movement of the switching portions 31, 31 can be suppressed by the single second lock lever 57. Good.
Moreover, it is good also as a structure provided with the runner guided by the horizontal rail distribute | arranged so that it may be extended so that one holding fixture connected with the door width direction both ends of the door 10 may be extended horizontally.
Moreover, it is good also as a structure provided with the buffer mechanism which decelerates the door 10 moved to at least one side among a closed position and a full open position, and relieves a bounce and an impact.

Moreover, in this embodiment, the door width direction both ends of the door 10 are connected with a pair of holding tools 30 and 30, and the example which provided two rail units 20 and 20 in series in the door width direction is shown. However, it is not limited to such an aspect. For example, the upper end portion of the door 10 may be connected to three or more holders 30, and three or more rail units 20 may be provided in series in the door width direction. Furthermore, the holder 30 for holding a plurality of places of the door 10 in this way is provided, and instead of the mode in which the plurality of rail units 20 are provided in series in the door width direction, the central portion in the door width direction of the door 10 Or the like may be provided as a holder 30 for holding a single point such as a single rail unit 20.
Further, in the present embodiment, the rail unit 20 is fixed to the upper frame 4 in the example, but may be fixed to a ceiling surface or the like, or may be fixed to the ceiling in an embedded manner It is also good.
Further, in the present embodiment, the pair of first rails 23 and 23 are provided on both sides in the width direction of the single second rail 26, and the pair of first runners 41 and 41 guided by these are provided to the holder 30. Although the example made into the structure is shown, it is not restricted to such an aspect. Conversely, a pair of second rails 26 may be provided on both sides of the single first rail 23 in the width direction, and a pair of second runners 44 guided by these may be provided on the holder 30. Alternatively, a single first rail 23 and a single second rail 26 may be provided, and the runners 41 and 44 guided by these may be provided in the holder 30. In the embodiment, the first rail 23 and the second rail 26 are arranged in parallel in the width direction, but they may be arranged in parallel in the vertical direction. Good.

Further, in the present embodiment, an example is shown in which the locking and unlocking of the lock mechanisms 56, 57, 47, 48 are performed along with the movement of the door 10, but the present invention is limited to such an embodiment. Absent. The locking and unlocking of part or all of the locking mechanisms 56, 57, 47, 48 may be performed by an appropriate operation unit or the like. Furthermore, without providing a part of such a lock mechanism 56, 57, 47, 48, the movement of the switching unit 31 is restrained by an appropriate lock member, human power or the like, and the load on each runner 41, 44 is It may be configured to be maintained in a state where it is applied.
Moreover, although the example which provided the 1st runner 41 and the 2nd runner 44 at intervals in the rail longitudinal direction of the holder 30 is shown in this embodiment, it is not restricted to such an aspect. For example, the first runner 41 and the second runner 44 may be provided at intervals in the rail width direction of the holder 30. In this case, the switching unit 31 is configured to hold the door 10 slidably in the rail width direction, and the door 10 is moved in the rail width direction with respect to the switching unit 31 as described above. The center of gravity may be moved.
In addition, when the first runner 41 descends the first rail 23 and the second runner 44 descends the second rail 26, it is not limited to the one in which the door 10 travels by itself, but may be one requiring human power assistance. .

Further, in the present embodiment, the first rail 23 and the second rail 26 inclined to the opposite side and the switching mechanism (switching portion) 31 are provided to open the door 10 to both the fully open position side and the closed position side. Although it is set as the structure which assists driving | running | working, it is not restricted to such an aspect. For example, a drive mechanism such as a rack and a gear, a spring, or the like, or a mechanism for tilting the rail itself may be provided as the assisting mechanism. In this case, the stopper mechanisms 56 and 57 may be modified as appropriate.
Further, in the present embodiment, the stopper mechanism (first lock mechanism) 56 for stopping the door 10 assisted at the middle open position toward the fully open position and the door 10 assisted for the closing position at the middle position Although the example which provided the stopper mechanism (2nd lock mechanism) 57 to stop in (1) is shown, it is good also as an aspect provided only one side among these.

Further, in the present embodiment, the door body 10 is assisted in traveling on both sides of the fully open position side and the closed position side. However, the first one of the fully open position side and the closed position side is provided The configuration may be such that only assistance for traveling to the position side is provided. In this case, instead of the switching portion 31 being displaced and the inclination of the guide portion 32 being reversed, a slope upper side of the rail inclined downward toward the first position side to assist traveling. It is good also as composition provided with the uphill guide part which guides so that door 10 may go up to the 1st position side in one to the end of the 2nd position side). Further, the assisting mechanism 2 is not limited to such a mode in which the rail is inclined, and includes a spring such as a spring spring or a tension spring whose one end is fixed to the rail and the other end is fixed to the door 10. Also, various modifications are possible.
Further, the stopper mechanisms 56 and 57 for releasably stopping the door 10 in the middle position against the assistance of the assistance mechanism 2 are not limited to those stopped at one place in the middle, and can be stopped at a plurality of places It may be Furthermore, the door 10 may be capable of being stopped at any position. Further, such stopper mechanisms 56 and 57 are not limited to the above-described rotatable lock lever-like ones, and the door 10 can be made of slideable ones, frictional resistance or the like. It is good also as things etc. which are made to stop, In addition, various modifications are possible.

DESCRIPTION OF SYMBOLS 1 Sliding door apparatus 2 Support mechanism 10 House 23 23 1st rail 26 2nd rail 32 Guide part (uphill guide part)
41 first runner 44 second runner 56 first lock lever (stopper mechanism)
57 2nd lock lever (stopper mechanism)
9 opening

Claims (4)

A door that is slidable and opens and closes,
An assisting mechanism for assisting the traveling of the door to the first position side which is at least one of the fully open position side and the closed position side;
A stopper mechanism that releasably stops the door at an intermediate position against the assistance of the assistance mechanism;
Equipped with
The assisting mechanism has a downhill shape from the second position side, which is a side different from the first position side, toward the first position side so as to guide and assist the runner connected to the door. And an uphill guide section for guiding the door to move upward toward the first position at an end on the second position side of the rail, the uphill guide section comprising: A sliding door device characterized in that it is formed into an upward slope toward the first position, and the engaging portion of the door is slidably engaged . In claim 1,
The sliding door device according to claim 1, wherein the stopper mechanism is released when the door stopped at the halfway position is moved toward the first position. In claim 1 or 2,
The sliding door device according to claim 1, wherein the assisting mechanism allows movement of the door stopped at the halfway position to a second position side which is a side different from the first position side. In any one of claims 1 to 3 ,
The runners are connected in a pair at each end of the door in the door width direction,
The support mechanism is configured such that the rails are in series in the door width direction of the door body, the rails guiding the pair of runners and the uphill guide portions guiding the door width direction both end sides of the door body. A sliding door apparatus characterized in that it is provided in a pair shape so as to form a shape.

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