JP2016130390A - Sliding door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sliding door device that mitigates an impact from a door panel when moving to a fully open position and a fully closed position, while making a member that guides an upper edge side of the door panel less conspicuous at least in the fully closed position.SOLUTION: A sliding door device 1 is provided with a door panel 10 fitted slidably along a side surface of a wall body 2 so as to open/close an opening 3 formed on the wall body on a side in a wall thickness direction of the opening, and includes: a lower rail 7 disposed on a floor side on the side of the wall body, for guiding a bottom edge side of the door panel; a pair of stopper parts 8, 9 disposed at both edge parts in a longitudinal direction of the lower rail, for regulating respectively a fully closed position and a fully open position of the door panel; an upper guide member 19 disposed on the side of the wall body at a location within a door width of the door panel at the fully closed position, the upper guide member guiding a top edge side of the door panel; and buffer mechanisms 14, 17 disposed at both edge parts in the door width direction of a bottom edge part of the door panel, to be actuated by the pair of stopper parts, for decelerating the door panel.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sliding door device.

Conventionally, a sliding door that is slidable along one surface of the wall body so as to open and close an opening provided on the wall body, such as an entrance / exit, on one side in the wall thickness direction of the opening, so-called outset storage. It has been known. In the case of such outset storage, the upper rail that guides the upper end side of the sliding door is attached along the wall surface. Therefore, particularly when the sliding door is closed, there is a problem that the upper rail is easily noticeable on the wall surface on the side where the sliding door is placed (stored) when the sliding door is opened.
For example, in the following Patent Document 1, a sliding door device provided with an upper guide mechanism for providing a stopper member at both ends of a rail that runs on a lower end of a sliding door and that is fixed to the floor, and that guides the upper portion of the sliding door. Is disclosed. Further, in this sliding door device, the guide member of the rail member provided at the upper end of the sliding door is engaged with the guide member constituting the upper guiding mechanism provided on the upper wall surface between the opening and the side wall surface thereof. The guide groove is provided with a mating guide groove.

JP 2003-82915 A

  However, in the sliding door device described in Patent Document 1, it has been considered that the impact on the stopper member of the sliding door that moves to the fully open position and the fully closed position increases.

  The present invention has been made in view of the above circumstances, and reduces the impact of the door plate moving to the fully open position and the fully closed position while making the member that guides the upper end of the door plate inconspicuous at least in the fully closed position. The object is to provide a sliding door device to obtain.

  In order to achieve the above object, a sliding door device according to the present invention is slidable along one surface of the wall body so as to open and close an opening provided in the wall body on one side in the wall thickness direction of the opening. A sliding door device provided with a door plate to be attached, disposed on the floor side on one side of the wall body, provided at a lower rail for guiding a lower end side of the door plate, and at both longitudinal ends of the lower rail, A pair of stopper portions that respectively regulate the fully closed position and the fully open position of the door plate; and the door plate is disposed so as to be within a door width of the door plate at the fully closed position on one side of the wall body, An upper guide member that guides the upper end side of the door plate, and a buffer mechanism that is provided at both ends of the lower end portion of the door plate in the door width direction so as to be operated by the pair of stopper portions, and decelerates the door plate. It is characterized by being.

  The sliding door device according to the present invention is configured as described above, and the impact of the door plate that moves to the fully open position and the fully closed position while the member that guides the upper end side of the door plate is at least inconspicuous in the fully closed position. Can be relaxed.

It is a partial fracture outline front view showing typically the state where an example of the sliding door device concerning one embodiment of the present invention was constructed. It is a partially broken schematic front view which shows typically the state which constructed an example of the sliding door apparatus. (A) is a partially broken schematic longitudinal sectional view corresponding to the XX line arrow in FIG. 1, and (b) is a partially broken schematic transverse section corresponding to the YY line arrow in FIG. FIG. (A), (b) is a partially broken schematic enlarged longitudinal sectional view corresponding to Z1 part in FIG. 1, and (c), (d) are both corresponding to Z2 part in FIG. It is a partial fracture outline expansion longitudinal section.

Embodiments of the present invention will be described below with reference to the drawings.
In some of the drawings, some of the detailed reference numerals attached to other drawings are omitted.
Moreover, in the following embodiment, directions, such as an up-down direction, are demonstrated on the basis of the state which constructed the sliding door apparatus which concerns on this embodiment.

  As shown in FIGS. 1, 2, and 3, the sliding door device 1 according to this embodiment includes a wall body 2 that opens and closes an opening 3 provided in the wall body 2 on one side in the wall thickness direction of the opening 3. The door plate 10 is provided so as to be slidable along the one surface. In other words, the door plate 10 is not a sleeve wall storage in which a sleeve wall is provided in a part of the wall body or a door bag storage in which a wall wall is provided with a door pocket, but is slidable outside the opening 3 on one side in the wall thickness direction. It is configured to be built in a set receipt. Further, when the door plate 10 is slid in a single-sided shape from the fully closed position shown in FIG. 1 to one side in the door width direction to be in the fully open position shown in FIG. The wall 2 is arranged on one side in the wall thickness direction. In the present embodiment, the sliding door device 1 is configured to include a single door plate 10.

Moreover, the sliding door apparatus 1 is arrange | positioned at the floor side of the one side (wall thickness direction one side) of the wall 2, the lower rail 7 which guides the lower end side of the door plate 10, and the one side (wall thickness) of the wall 2 And an upper guide member 19 that guides the upper end side of the door plate 10. The sliding door device 1 includes a pair of stopper portions 8 and 9 that are provided at both ends in the longitudinal direction of the lower rail 7 and restrict the fully closed position and the fully open position of the door plate 10 respectively. Further, the sliding door device 1 includes buffer mechanisms 14 and 17 that are provided to be operated by a pair of stopper portions 8 and 9 at both ends in the door width direction of the lower end portion of the door plate 10 and decelerate the door plate 10. . The sliding door device 1 is a lower load type that receives the load of the door plate 10 by the lower rail 7.
In the present embodiment, the sliding door device 1 is configured to include an opening frame 4 that partitions the opening 3.

As shown in FIG. 3B, the opening 3 is provided so as to penetrate the wall body 2 of the building such as a residence and constitutes an entrance / exit.
The upper side and the left and right (opening width direction) sides of the opening 3 are partitioned by an upper frame 5 and a pair of vertical frames 6 and 6 constituting the opening frame 4. Further, the lower side of the opening 3 may be partitioned by a floor surface, or may be partitioned by a lower frame.
The upper frame 5 and the pair of vertical frames 6 and 6 constituting the opening frame 4 are fixed to an appropriate frame base, and in the illustrated example, both end portions in the wall thickness direction (expected direction) are so-called dust portions. An example of a fixed frame protruding from both sides in the wall thickness direction is shown. Instead of such an aspect, the upper frame 5 and the pair of vertical frames 6 and 6 may be a so-called casing frame provided with a frame-shaped member.

  As shown in FIGS. 1 and 3B, the upper guide member 19 is located on one side of the wall body 2 (one side in the wall thickness direction) within the door width of the door plate 10 in the fully closed position. It is set as the structure arrange | positioned. That is, the guide member 19 is not long so that the lower end side guide of the door plate 10 that slides between the fully closed position and the fully open position can be guided like the lower rail 7 described later. The dimension along the door width direction is equal to or smaller than the door width dimension of the door plate 10.

In the present embodiment, as shown in FIG. 2, the upper guide member 19 is arranged so as to be positioned within the door end side end width of the door plate 10 in the fully open position. In other words, the upper guide member 19 has one vertical frame (a door end side end portion of the door plate 10 in the fully open position) that is substantially the center of the movement trajectory of the door plate 10 that moves between the fully open position and the fully closed position. (Vertical frame located in the vicinity) 6 is arranged so as to be located in the vicinity.
That is, the dimension along the door width direction of the upper guide member 19 is equal to or less than the dimension along the door width direction from the door bottom side end face of the door board 10 set to the fully closed position to the door tip side end face of the door board 10 set to the fully open position. It is said that. In other words, as shown in FIGS. 1 and 2, the upper guide member 19 is viewed from both end surfaces in the door width direction of the door plate 10 when the door plate 10 is viewed in the door thickness direction in both the fully closed position and the fully open position. It is set as the structure arrange | positioned so that it may not protrude to the door width direction outer side. In the illustrated example, the dimension along the door width direction of the upper guide member 19 is shown as being substantially the same as the dimension along the door width direction of one vertical frame 6 (finding dimension).

In the present embodiment, the upper guide member 19 is fixed to the opening frame 4.
As shown in FIG. 3A, the upper guide member 19 engages with an attachment piece portion 19 c attached to the opening frame 4 as an attachment target and a guided portion 11 provided on the upper end side of the door plate 10. And a guide part 19a.
The attachment piece 19c has a thin plate shape generally extending in the thickness direction in the wall thickness direction, and is fixed to the opening frame 4 with a stopper such as a screw. In the illustrated example, the attachment piece 19c is fixed to a surface facing the door plate 10 side of the upper end of one vertical frame 6 constituting the opening frame 4 having a vertical winning shape. Instead of such a mode, for example, the attachment piece 19c may be fixed to the upper frame 5 or may be fixed to the upper surface side of the opening frame 4.

In the present embodiment, the guide portion 19a is a guide protrusion 19a that is inserted into the groove 11 as a guided portion provided at the upper end portion of the door plate 10 to be described later.
The guide protrusion 19a is a thin plate having a thickness direction along the wall thickness direction. In the illustrated example, the guide protruding piece 19a protrudes downward from the protruding end of the supporting piece 19b provided to protrude from the upper end of the mounting piece 19c toward one side in the wall thickness direction. The example provided is shown.
In addition, the protrusion which touches the inner surface of the recessed groove 11 of the doorplate 10 is provided in the wall thickness direction both sides of this guide protrusion 19a, or the inner surface of the recessed groove 11 of the doorplate 10 is provided in this guide protrusion 19a. There may be provided a guide roller that is in contact with the roller and rolls.
The upper guide member 19 may be formed of a metal material, a hard synthetic resin material, or the like.

The lower rail 7 has an elongated shape along the sliding direction (door width direction) of the door plate 10 and is located on the lower end side of the door plate 10 that slides between the fully closed position shown in FIG. 1 and the fully open position shown in FIG. It is arranged on the floor side so that a guide is possible. In the illustrated example, the length of the lower rail 7 is a dimension corresponding to the dimension along the door width direction from the door end side end surface of the door plate 10 in the fully closed position to the door bottom side end surface of the door plate 10 in the fully open position. Is shown. That is, the lower rail 7 has a length that is twice or more the opening width dimension of the opening 3.
The lower rail 7 is provided with a guide groove 7a that opens upward and extends in the longitudinal direction.

As shown in FIG. 3 (b), the lower rail 7 is disposed so as to be located on one side in the wall thickness direction of the vertical frames 6, 6 that is one side in the wall thickness direction of the opening 3. In the illustrated example, the lower rail 7 is positioned on one side in the wall thickness direction of the other vertical frame 6 positioned in the vicinity of the door end side end of the door plate 10 whose longitudinal end is in the fully closed position. An example is shown. In the illustrated example, the lower rail 7 is arranged so as to be close to one surface in the wall thickness direction of both the vertical frames 6 and 6.
In the present embodiment, the lower rail 7 is a so-called directly attached rail installed on the floor. In place of such a mode, the lower rail 7 may be provided in an embedded manner on the floor.

The stopper portions 8 and 9 are provided at one end portion in the longitudinal direction of the lower rail 7 and are provided at the other end portion in the longitudinal direction of the lower rail 7 and the fully closed stopper portion 8 that restricts the fully closed position of the door plate 10. And a fully open side stopper portion 9 for restricting the fully open position. These stopper portions 8 and 9 are provided so as to protrude upward.
In the fully closed side stopper portion 8, the contact surface 8 a that faces the door end side end surface of the door plate 10 contacts the lower end portion of the door end side end surface of the door plate 10, and the door plate 10 further moves forward in the closing direction. It is set as the structure which suppresses.
In the fully open side stopper portion 9, the contact surface 9 a facing the door butt side end surface of the door plate 10 contacts the lower end portion of the door butt side end surface of the door plate 10 to further move the door plate 10 forward in the opening direction. It is set as the structure which suppresses. The contact surfaces 8a and 9a of the stopper portions 8 and 9 are configured so as to face each other and in a substantially parallel shape.
The upward projecting dimensions of the stopper portions 8 and 9 may be appropriately set so that the movement of the door plate 10 can be suppressed and from the viewpoint of appearance.

The stopper portions 8 and 9 are provided with action portions 8b and 9b that actuate buffer mechanisms 14 and 17 provided on the door plate 10 described later.
In the present embodiment, the action portions 8b and 9b of the stopper portions 8 and 9 are action protrusions 8b and 9b provided so as to protrude toward each other, which is a direction along the door width direction. In the example shown in the figure, the action protrusions 8b and 9b are provided at substantially central portions in the direction along the door thickness direction of the contact surfaces 8a and 9a of the stopper portions 8 and 9, respectively. In addition, the protrusion dimensions of these action protrusions 8b and 9b may be appropriate dimensions so that the door plate 10 can be effectively decelerated by the buffer mechanisms 14 and 17 described later.

As shown in FIG. 1, the door plate 10 is configured to cover substantially the entire opening 3 when viewed from one side in the wall thickness direction (door thickness direction), as shown in FIG. 1. Further, as shown in FIG. 2, the door plate 10 is arranged so that the inner side surface (probable surface) of the one vertical frame 6 and the door end side end surface are substantially flush with each other in the fully opened position.
In the present embodiment, as shown in FIG. 1, the vertical dimension and the door width dimension of the door plate 10 are larger than the opening height dimension and the opening width dimension of the opening 3. In the illustrated example, the vertical dimension of the door plate 10 is a dimension that can cover the entire upper frame 5 when viewed from one side in the wall thickness direction in the fully closed position. Further, the door width dimension of the door plate 10 is a dimension that can cover substantially the entire vertical frames 6 and 6 on both sides when viewed from one side in the wall thickness direction in the fully closed position. Further, in the illustrated example, the overlap width (width along the door width direction) with the wall body 2 in the state in which the door plate 10 in the fully closed position is viewed in the wall thickness direction is the door edge side edge rather than the door tip side edge. The example which has arranged the door board 10 so that it may become large in a part is shown.

An appropriate handle 18 serving as a handle when opening and closing the door plate 10 is provided at the door end side end portion of the door plate 10.
Moreover, in this embodiment, as shown to Fig.3 (a), the concave groove 11 as a to-be-guided part engaged with the guide protrusion 19a of the upper guide member 19 is provided in the door width direction on the upper end side of the doorplate 10. It is set as the structure provided so that it might extend. In the present embodiment, the concave groove 11 is provided so as to open upward on the upper end surface of the door plate 10. Further, an example in which the concave groove 11 is formed in a substantially rectangular groove shape when viewed in the longitudinal direction of the groove is shown. Further, in the illustrated example, the concave groove 11 is provided so as to receive almost the entire guide protrusion 19a.

The concave groove 11 is formed by a rail-shaped member formed of a metal material, a hard synthetic resin material, or the like having a substantially U-shaped cross section (U shape or C shape) that opens upward. It may be partitioned. Alternatively, at least one side wall in the groove width direction may be partitioned by a member formed of a metal material, a hard synthetic resin material, or the like. Moreover, although the example which provided the ditch | groove 11 over the full width of the doorplate 10 is shown so that it may open in the door width direction both end surfaces, you may make it not open in the door width direction both end surfaces. .
Moreover, it is good also as an aspect provided so that this ditch | groove 11 could cover the whole upper guide member 19 seeing from the wall thickness direction one side. For example, the vertical dimension of the one side piece portion is recessed so that the entire upper guide member 19 is covered by the one side (opposite wall side) piece portion defining one side in the groove width direction of the recessed groove 11 of the door plate 10. It is good also as larger than the vertical dimension of the other side (wall body 2 side) piece part which divides the groove width direction other side of the groove | channel 11.

In the present embodiment, the door plates 13 and 16 that engage with the guide grooves 7 a of the lower rail 7 are provided at the lower end portion of the door plate 10.
In the present embodiment, door rollers 13 and 16 are provided at both ends of the door width direction at the lower end of the door plate 10. These door pulleys 13 and 16 are provided so that a part protrudes from the lower end part of the door plate 10 toward the downward direction. Further, the door pulleys 13 and 16 are rotatable around an axis along the door thickness direction, and are configured to roll by engaging with the guide groove 7 a of the lower rail 7.

Moreover, in this embodiment, it is set as the structure which provided the buffer mechanism 14 and 17 made into the structure which decelerates the doorplate 10 and rebounds and an impact is reduced to the doorwheel unit 12 and 15 provided with these doorwheels 13 and 16. FIG. In other words, the door-end side door cart unit 12 provided at the lower end of the door-end side of the door plate 10 is provided with a fully-closed side buffer mechanism 14 that decelerates the door plate 10 that moves to the fully-closed position. Moreover, it is set as the structure which provided the full opening side buffer mechanism 17 which decelerates the door board 10 which moves to the full open position in the door bottom side door-cart unit 15 provided in the lower end part by the side of the door bottom of the door board 10. As shown in FIG.
The door units 12 and 15 including the buffer mechanisms 14 and 17 have the same configuration as each other, and are provided on the lower end side of the door plate 10 so as to be line symmetric when viewed in the door thickness direction.

  Further, as shown in FIG. 4, the buffer mechanisms 14 and 17 include operating arms 14 a and 17 a that are actuated by action protrusions 8 b and 9 b as action parts of the stopper parts 8 and 9 described above. The door units 12 and 15 are provided with recesses 12a and 15a for receiving the operation protrusions 8b and 9b of the stoppers 8 and 9, and the operating arms 14a and 17a are connected to the recesses 12a and 15a. It is set as the structure displaced inside. These recesses 12a and 15a are provided in a cutout shape so as to open toward the outer side and the lower side in the door width direction.

Each operation arm 14a, 17a is configured to be displaced with respect to the door plate 10 by the action protrusions 8b, 9b of the stopper portions 8, 9, and decelerate the door plate 10. Each of the buffer mechanisms 14 and 17 is provided with an appropriate damper (shock absorber) serving as an operating resistance of the operating arms 14a and 17a that are displaced with respect to the door plate 10, and an operating resistance (viscosity resistance of the working fluid, etc.) of the damper. As a result, the door plate 10 is decelerated.
Moreover, in this embodiment, these operation arms 14a and 17a are made into the rod shape which expands-contracts in a door width direction. These operating arms 14a and 17a are in a protruding state in a natural state where the operating arms 14a and 17a are not operated by the operating protrusions 8b and 9b of the stopper portions 8 and 9, respectively. In addition, the operating arms 14a and 17a are provided in the recesses 12a and 15a so that the distal end portions do not protrude from the end faces in the door width direction of the door plate 10 in a natural state. In the illustrated example, each of the operating arms 14a and 17a has a configuration in which the distal end portion is substantially flush with each end surface of the door plate 10 in the door width direction in a natural state.
Further, the operating arms 14a and 17a are operated so as to be pushed in by the action protrusions 8b and 9b of the stopper portions 8 and 9, respectively.

In the example shown in the drawing, an example is shown in which a disk-shaped portion having the thickness direction along the door width direction is provided at the distal end portion of each operating arm 14a, 17a. . For example, the tip of each operating arm 14a, 17a is configured such that at least the opening on the outer side in the door width direction of each recess 12a, 15a can be substantially closed when each operating arm 14a, 17a is in a natural state. Also good. In addition, the operating arms 14a and 17a may have various other forms.
Further, the buffer mechanisms 14 and 17 are provided with biasing members such as springs that bias the door plate 10 that moves against the operating resistance of the damper so as to guide (draw) the door plate 10 to the fully closed position or the fully open position. It is good also as a structure. Moreover, you may make it provide the engagement holding part which hold | maintains in these buffer mechanisms 14 and 17 so that the state of the action | operation arms 14a and 17a by which the doorplate 10 was made into the fully-closed position or the fully-open position may be degenerated. . Alternatively, an appropriate holding mechanism (catch mechanism) that holds the door plate 10 so as to maintain the fully closed position or the fully open position may be provided separately from the buffer mechanisms 14 and 17.

The door plate 10 provided with the buffer mechanisms 14 and 17 having the above-described configuration is decelerated by the action protrusions 8b and 9b of the stopper portions 8 and 9, respectively.
That is, as shown in FIG. 4A, when the door plate 10 moves from the open side toward the fully closed position, the operating arm 14 a of the fully closed side buffer mechanism 14 is affected by the action of the fully closed side stopper portion 8. The door plate 10 is decelerated by the pushing action by the portion 8b so that the door plate 10 is decelerated. Moreover, the lower end part of the door end side end surface of the door plate 10 contacts the contact surface 8a of the fully closed stopper portion 8, and the door plate 10 is in the fully closed position as shown in FIG. 4B.
Similarly, when the door plate 10 moves from the closed side toward the fully open position, the operating arm 17a of the fully open side buffer mechanism 17 is formed by the action protrusion 9b of the fully open side stopper portion 9 as shown in FIG. The door plate 10 is decelerated by the pushing action so that the door plate 10 is decelerated. Moreover, the lower end part of the door butt side end surface of the door plate 10 contacts the contact surface 9a of the fully open side stopper portion 9, and the door plate 10 becomes the fully open position as shown in FIG. 4 (d).

The sliding door device 1 according to the present embodiment is configured as described above, so that the member 19 that guides the upper end side of the door plate 10 is not noticeable at least in the fully closed position, but moves to the fully open position and the fully closed position. The impact of the door plate 10 can be mitigated.
That is, the upper guide member that guides the top and bottom of the door plate 10 slidably built along one surface of the wall 2 so as to open and close the opening 3 provided in the wall 2 on one side in the wall thickness direction of the opening 3. 19 and the lower rail 7 are provided. Therefore, the door plate 10 can be stored in an outset shape.
Further, the upper guide member 19 is disposed so as to be positioned within the door width of the door plate 10 in the fully closed position on one side of the wall body 2. Accordingly, at least the door plate 10 is fully closed at the upper guide member 19 that guides the upper end side of the door plate 10 as compared with the conventional case in which the upper rail is more conspicuous on the wall surface on the door plate storage side at the door plate fully closed position. It can be inconspicuous in position. That is, as shown in FIG. 1, when the door plate 10 is set to the fully closed position, there is no upper rail or the like on the wall surface on the side where the door plate 10 is placed, and a clean impression can be given.

  In addition, buffer mechanisms 14 and 17 that decelerate the door plate 10 so as to be operated by a pair of stopper portions 8 and 9 provided at both ends of the lower rail 7 are provided at both ends in the door width direction of the lower end portion of the door plate 10. It has a configuration. Therefore, the impact of the door plate 10 that moves to the fully open position and the fully closed position can be reduced. In addition, for example, a buffer mechanism may be housed in the guide groove of the lower rail, but the lower rail 7 can be effectively reduced in thickness as compared with such a structure. Thereby, like this embodiment, even when the lower rail 7 shall be arrange | positioned on a floor, it can be made thin and can improve barrier-free property.

  Moreover, in this embodiment, it is set as the structure arrange | positioned so that the upper guide member 19 may be located in the door end side edge part width | variety of the doorplate 10 of a fully open position. That is, the dimension along the door width direction of the upper guide member 19 is set to a dimension according to the dimension along the door width direction of the door end side end portion, and the upper guide member 19 is arranged at a substantially central portion of the sliding region of the door plate 10. It is assumed that it is configured. Therefore, as shown in FIG. 2, the upper guide member 19 can be made inconspicuous even when the door plate 10 is in the fully open position. In addition, it replaces with such an aspect, for example, it is set as the substantially same length as the door width dimension of the doorplate 10, and the upper guide member distribute | arranged so that it may be set in the door width of the doorplate 10 made into the fully-closed position It may be 19 or the like.

  In the present embodiment, the upper guide member 19 is fixed to the opening frame 4. Accordingly, the guide member 19 can be firmly fixed without providing a base or the like for fixing. Instead of such an aspect, the upper guide member 19 may be fixed to the wall body 2 via a base or the like. In this case, without providing the opening frame 4, the opening 3 may be defined by an inner surface that is cross-finished in a frameless manner.

Moreover, in this embodiment, it is set as the structure which provided the groove 11 in the doorplate 10, and provided the guide protrusion 19a as a guide part inserted in the groove 11 in the upper guide member 19. FIG. Therefore, for example, the door plate 10 is more effectively provided on one side of the wall body 2 (the opening frame 4 can be found) than the case where the door plate is provided with a ridge and the upper guide member is provided with a guide groove into which the ridge is inserted. Surface).
In addition, it replaces with the aspect which provided the ditch | groove 11 opened upwards in the upper end part of the doorplate 10, and the ditch | groove 11 was opened so that it might open in the door thickness direction one side (back) toward the wall 2 side of the doorplate 10. It is good also as a provided structure. In this case, the upper guide member 19 may be appropriately deformed. Further, instead of the aspect in which the concave groove 11 is provided on the door plate 10 side and the portion to be inserted into the concave groove 11 is provided on the upper guide member 19 side, a convex strip is provided on the door plate 10 side and convex on the upper guide member 19 side. It is good also as an aspect etc. which provided the guide groove into which a strip is inserted.

  In the present embodiment, the operation arms 14a and 17a of the buffer mechanisms 14 and 17 are provided so as not to protrude from the end surfaces in the door width direction of the door plate 10, and the operation arms 14a and 14a are provided on the stopper portions 8 and 9, respectively. It is set as the structure which provided the action | operation protrusions 8b and 9b as an action part which act | operates 17a. Therefore, the appearance can be improved compared to the case where the operating arm is provided so as to protrude in the door width direction from the both ends of the door width direction of the door plate, and the catch or damage can be suppressed. . In addition, it is good also as an aspect which replaced with such an aspect and provided the action | operation arm so that it might protrude in the door width direction from the door width direction both end surface of a doorplate. In this case, you may make it grasp | ascertain the contact surfaces 8a and 9a as an action part, without providing a protrusion in each stopper part 8 and 9. FIG.

In the present embodiment, the buffer mechanisms 14 and 17 on the lower end side of the door plate 10 are provided in the door cart units 12 and 15 including the door carts 13 and 16, but are provided in other portions. May be. Furthermore, instead of the mode in which such door wheels 13 and 16 are provided at the lower end portion of the door plate 10, the protrusions and lower end portions provided at the lower end portion of the door plate 10 engage with the guide grooves 7 a of the lower rail 7. It is good also as a mode etc. which are guided.
Further, in the present embodiment, an example is shown in which the buffer mechanisms 14 and 17 are provided with rod-like operating arms 14a and 17a that extend and contract in the door width direction. However, the present invention is not limited to this mode. . For example, the buffer mechanisms 14 and 17 may be provided with rod-like operating arms 14a and 17a that expand and contract in the vertical direction. In this case, it is good also as an aspect which provided the inclined surface which inclines so that it may go up to the stopper parts 8 and 9 toward the door width direction outward side as an action part. Or it is good also as a structure etc. which provided the operation arms 14a and 17a which rotate to the buffer mechanism 14 and 17 around the axis | shaft along a door thickness direction. As the buffer mechanisms 14 and 17 provided on the door plate 10, various other modifications are possible, and various modifications can be made on the action portions 8 b and 9 b of the stopper portions 8 and 9.

1 Sliding door device 4 Opening frame 7 Lower rail 8 Fully closed side stopper (stopper)
9 Fully open stopper (stopper)
10 Doorboard 14 Fully closed side buffer mechanism (buffer mechanism)
17 Fully open side buffer mechanism (buffer mechanism)
19 Upper guide member 2 Wall body 3 Opening

Claims (3)

A sliding door device comprising a door plate slidably built along one surface of the wall so as to open and close an opening provided in the wall on one side in the wall thickness direction of the opening,
A lower rail disposed on the floor side on one side of the wall body and guiding the lower end side of the door plate;
A pair of stopper portions provided at both ends in the longitudinal direction of the lower rail, for regulating the fully closed position and the fully open position of the door plate, respectively;
An upper guide member that is disposed so as to be within a door width of the door plate in the fully closed position on one side of the wall body, and that guides the upper end side of the door plate;
A sliding door device comprising: a buffer mechanism that is provided at both ends of the lower end portion of the door plate in the door width direction so as to be operated by the pair of stopper portions and decelerates the door plate. In claim 1,
The sliding door device according to claim 1, wherein the upper guide member is arranged so as to be located within a door end side end width of the door plate in a fully open position. In claim 1 or 2,
An opening frame that divides the opening;
The sliding door device, wherein the upper guide member is fixed to the opening frame.

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