JP2020133355A - Slide door device - Google Patents

Abstract

To provide a slide door device that can reduce a step between a slide door panel in a closed position and a wall surface, and stably guide the lower end of the slide door panel, and for which a guiding member is unlikely to be an obstacle.SOLUTION: The slide door device comprises: an upper rail that supports a slide door panel in a hanging manner and that has a straight section and a slope section which guides the slide door panel in a door thickness sloping direction so that the slide door panel intersects a wall surface; a lower end guide member that is provided near the door tail end of the slide door panel and guides the lower end of the slide door panel; an arm-like retainer at the tip of the lower end guide member; and a lower rail that guides the base end of the arm-like retainer so that a guide part located at the door tail end of a guided groove moves in response to the slide door panel moving in the door thickness sloping direction while retaining the base end of the arm-like retainer in a straight guide position in which the guide part is inserted into the guided groove of the slide door panel. The guided groove is provided with a retainer that retains the guide part at the door tail end of the guided groove in an attachable/detachable manner.SELECTED DRAWING: Figure 1

Description

The present invention relates to a sliding door device including a sliding door panel that opens and closes an entrance / exit.

Conventionally, a sliding door device having a sliding door panel arranged in an outset shape with respect to a wall surface and being openable and closable, and a sliding door device having a sliding door panel housed in a door pocket have been known. In such a sliding door device, a step is formed between the sliding door panel and the wall surface at the closed position according to the wall thickness of the door pocket and the wall thickness of one door pocket that divides the door pocket, and the step tends to be conspicuous. ..
For example, in Patent Document 1 below, a straight rail and a retractable rail extending in an oblique direction are provided on two guide rails for guiding roller units provided at intervals above the sliding door, and the sliding door is closed. A sliding door tool that can flatten the surface and the wall surface is disclosed. Further, this sliding door tool is attached to the lower end of the sliding door via a bracket and is inserted into the guide groove of the guide body having a substantially L-shaped guide groove on the bottom surface, and the sliding door tool is attached to the bottom surface of the sliding door. It is configured to include a second pin body inserted into the formed sliding door groove extending in the width direction.
Further, in Patent Document 2 below, a sliding door suspended so that the surfaces of the two sliding doors are flush with each other at the time of closing and the sliding door opened at the time of opening overlaps the front surface of the other sliding door. A steady rest device is disclosed that prevents the lower part of the door from swinging back and forth. This steady rest device has a configuration in which a guide pin that slidably engages in a guide groove on the lower surface of the sliding door is provided at the tip of a slider that slides in parallel with the inclined portion of the upper rail below the sliding door. There is.

Japanese Patent No. 4818362 Jitsukaisho 61-177179

However, in the sliding door tool described in Patent Document 1, the guide groove of the guide body and the pin body not inserted into the sliding door groove protrude from the floor portion, and the guide body protrudes from the lower end portion of the sliding door. Therefore, further improvement is desired.
Further, in the steady rest device described in Patent Document 2, when the sliding door moves from the closed position to the open side, a guide pin that is slidable in the guide groove moves from the end of the guide groove to the door width direction. There is a concern that it will be relatively easy to move.

The present invention has been made in view of the above circumstances, and while it is possible to reduce the step between the sliding door panel and the wall surface at the closed position, it is possible to stably guide the lower end side of the sliding door panel, and It is an object of the present invention to provide a sliding door device in which a guiding member is less likely to be an obstacle.

In order to achieve the above object, the sliding door device according to the present invention suspends and supports the guided member on the upper end side of the sliding door panel, and guides the member in parallel with the wall surface in a straight portion and an entrance / exit portion with respect to the wall surface. An upper rail having an oblique portion that guides in the diagonal door thickness direction so as to intersect with each other and a sliding door panel at a closed position are provided so as to be located near the door tail side end portion of the sliding door panel, and the lower end side of the sliding door panel is provided. A lower end guide member for guiding is provided, and the lower end guide member is provided so as to extend toward the sliding door panel side, and a guide portion inserted into a guided groove at the lower end portion of the sliding door panel at the tip end portion. While holding the base end side of the arm-shaped holding portion at a linear guide position in which the guide portion is inserted into the guided groove of the sliding door panel that moves parallel to the wall surface and the arm-shaped holding portion provided with the arm-shaped holding portion. Below, the guide portion located at the door end side end of the guided groove guides the base end side of the arm-shaped holding portion so as to move in conjunction with the sliding door panel that moves in the diagonal door thickness direction. A rail is provided, and the guided groove is provided with a holding portion for holding the guide portion located at the door end side end of the guided groove so as to be detachable.

The sliding door device according to the present invention has the above-described configuration, so that the step between the sliding door panel and the wall surface at the closed position can be reduced, and the lower end side of the sliding door panel is stably guided. It is possible to make the guiding member less likely to be an obstacle.

(A) to (c) are partial fracture schematic cross-sectional views schematically showing an example of a sliding door device according to an embodiment of the present invention. It is a partially broken schematic exploded perspective view of the sliding door device. (A) is a partially omitted schematic perspective view schematically showing an example of a door end side guided member constituting the guided member on the upper end side of the sliding door panel included in the sliding door device, and (b) is the guided member. It is a partially omitted schematic perspective view which shows typically an example of the door tail side guided member which constitutes a member. (A) is a schematic vertical cross-sectional view of a partial fracture corresponding to the X1-X1 line arrow in FIG. 1 (a), and (b) corresponds to the X2-X2 line arrow in FIG. 1 (a). It is a partial vertical cross-sectional view. (A) is a schematic cross-sectional view of a partial fracture corresponding to the Y1-Y1 line arrow in FIG. 4 (a), and (b) and (c) are the Y2-Y2 line arrows in FIG. 4 (a). It is a partial fracture schematic cross-sectional view corresponding to. (A) is a schematic exploded perspective view schematically showing an example of a lower end guide member included in the sliding door device, and (b) is a partial fracture outline corresponding to the X3-X3 line arrow in FIG. 7 (a). It is a vertical sectional view. (A) and (b) are schematic bottom views of partial fracture. (A) and (b) are schematic bottom views of partial fracture.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In some figures, some of the detailed codes attached to the other figures are omitted.
Further, in the following embodiment, the vertical direction and the like will be described with reference to the state in which the sliding door device according to the present embodiment is installed.

1 to 8 are diagrams schematically showing an example of a sliding door device according to the present embodiment.
As shown in FIGS. 1 (a) to 1 (c) and FIG. 2, the sliding door device 1 according to the present embodiment includes a sliding door panel 10 for opening and closing an entrance / exit 6 provided on the wall body 3, and a wall surface 3a of the wall body 3. It is provided with an upper rail 30 that is arranged along the above and guides the upper end side of the sliding door panel 10. Further, as shown in FIG. 6, the sliding door device 1 is provided so as to be located near the end of the sliding door panel 10 at the closed position on the door tail side, and includes a lower end guide member 20 for guiding the lower end side of the sliding door panel 10. ing. Note that in FIGS. 1 and 5, the lower end guide member 20 is not shown. The specific configuration of the lower end guide member 20 will be described later.
The wall body 3 may be a partition wall for partitioning the inside of a building such as a house, or any wall. As shown in FIG. 1A, the sliding door panel 10 in the fully open position is arranged along the wall surface 3a on one side in the wall thickness direction of the wall body 3. The front-rear direction may be described with the front side as the front side with reference to the state of facing the wall surface 3a along which the sliding door panel 10 in the fully open position of the wall body 3 is placed. Further, the sliding door device 1 may be one in which the space on the front side of the wall body 3 is arranged in a relatively small space such as a corridor, or may be installed in various places.

The doorway 6 is provided so as to penetrate the wall body 3. The doorway 6 may have an opening height from the floor 2 (see FIG. 6B) to a substantially ceiling (not shown), or the upper side may be partitioned by a hanging wall. Further, in the figure example, an example is shown in which both sides of the entrance / exit 6 in the opening width direction are partitioned by vertical frames 4 and 5 constituting the opening frame. As shown in FIG. 1 (c), the door of the sliding door panel 10 is located at one end (front side) of the vertical frame 4 on the door end side in which the end side of the sliding door panel 10 in the closed position is close to each other. An example is shown in which a notch-shaped recess for receiving the front end is provided. Further, an example is shown in which an inclined surface facing diagonally forward is provided at one end (front side) in the prospective direction of the door tail side vertical frame 5 in which the door tail side end portion of the sliding door panel 10 at the closed position is close. ing. The vertical frames 4 and 5 constituting the doorway 6 and the opening frame for partitioning the doorway 6 are not limited to the above-described modes, but may be in various other modes. Further, in the illustrated example, an example is shown in which the doorway 6 is opened and closed by one sliding door panel 10 arranged in a single pull shape, but the doorway 6 is opened and closed by two sliding door panels 10 arranged in a draw shape. It may be a mode of opening and closing. In this case, the upper rail 30 described later may be provided to guide each of the two sliding door panels 10.

The sliding door panel 10 has a substantially rectangular flat plate shape that is long in the vertical direction. The door height dimension and the door width dimension of the sliding door panel 10 are appropriately sized so that the doorway 6 can be closed. Further, appropriate clues are provided on both sides of the sliding door panel 10 on the door end side in the door thickness direction. Further, the end surface of the sliding door panel 10 on the door tail side is an inclined surface facing diagonally rearward so as to face the inclined surface of the door tail side vertical frame 5 in the closed position (also in FIG. 5 (c)). reference). The sliding door panel 10 is configured such that the guided members 11 and 15 on the upper end side are suspended and supported by the upper rail 30. In the present embodiment, as the guided members 11 and 15, the door end side guided member 11 provided on the upper end side of the door end side end portion of the sliding door panel 10 and the upper end side of the door tail side end portion of the sliding door panel 10 The door tail side guided member 15 provided in the above is provided.
The upper rail 30 is an oblique door so as to intersect the wall surface 3a at the straight portions 36a, 40a and the entrance / exit 6 that guide the guided members 11 and 15 on the upper end side of the sliding door panel 10 in parallel with the wall surface 3a. It has diagonal portions 36b and 40b that guide in the thick direction.

With the above configuration, the sliding door panel 10 can be guided in parallel along the wall surface 3a by the straight portions 36a and 40a of the upper rail 30. Further, at the closed position where the doorway 6 is closed, as shown in FIGS. 1 (c) and 5 (c), at least a part of the sliding door panel 10 in the door thickness direction is covered by the oblique portions 36b and 40b of the upper rail 30. It can be arranged in the doorway 6 rather than the wall surface 3a in the door thickness direction. As a result, the step between the one side surface (front surface) of the sliding door panel 10 in the door thickness direction and the wall surface 3a formed at the closed position is smaller than that of the sliding door panel 10 provided in an outset shape or housed in a door pocket. can do. As a result, if the sliding door panel 10 is set to the closed position, it is possible to prevent the space such as a corridor partitioned by the wall surface 3a along which the sliding door panel 10 is placed in the open position from being narrowed by the sliding door panel 10.

Further, as shown in FIGS. 4 and 5, the upper rail 30 has a bottom wall portion 32 that partitions the groove bottom side of the guide groove 31 that opens downward, and at least a part of the groove width in the groove longitudinal direction. The side walls 37 and 41 on both sides are provided so as to overlap each other when viewed in the direction and to partition both sides in the groove width direction. Further, the wall side side wall portion 41 as the side wall portion on the wall surface 3a side of the upper rail 30 is on the door tail side for guiding the runner main body 16 constituting the guided portion of the door tail side guided member 15 of the sliding door panel 10. A guide portion 40 is provided. Further, on the front side wall portion 37 as the side wall portion on the opposite wall side of the upper rail 30, the door end side guide portion that guides the runner main body 12 constituting the guided portion of the door end side guided member 11 of the sliding door panel 10 36 is provided. The door tail side guide portion 40 is provided with a straight portion 40a that guides the runner main body 16 of the door tail side guided member 15 in parallel with the wall surface 3a, and a door tail side portion of the doorway 6 so as to intersect the wall surface 3a. An oblique portion 40b that guides in the diagonal door thickness direction is provided. The door end side guide portion 36 is provided with a straight line portion 36a that guides the runner body 12 of the door end side guided member 11 in parallel with the wall surface 3a, and the door end side portion of the doorway 6 so as to intersect the wall surface 3a. An oblique portion 36b that guides in the diagonal door thickness direction is provided.

That is, the door tail side guide portion 40 is provided on the wall side side wall portion 41 of the upper rail 30, the door end side guide portion 36 is provided on the front side side wall portion 37 of the upper rail 30, and the wall side side wall portion 41 and the front side wall portion 37 are provided. Is configured to overlap each other when viewed in the groove longitudinal direction and at least a part in the groove width direction. With such a configuration, it is possible to reduce the size of the upper rail 30 along the door thickness direction as compared with the case where the two guide rails are provided in parallel in the door thickness direction. Further, as compared with the case where the bracket on the door end side of the sliding door panel needs to be projected larger than the door end side, the door end side guided member 11 and the door tail side guided member at the upper end of the sliding door panel 10 It is possible to reduce the size of the dimensions along the door thickness direction of 15. Further, for example, it is possible to reduce the size of the upper rail 30 along the vertical direction as compared with the case where two guide rails are provided so as to be stacked in the vertical direction. Further, for example, the sliding door panel 10 has a rail for guiding the door end side guided member and a rail for guiding the door tail side guided member in series and separately in the door width direction. The movable range in the door width direction and the effective opening width of the doorway 6 can be effectively increased. The specific configuration of the upper rail 30 will be described later.

As shown in FIGS. 2 and 4, the door end side guided member 11 and the door tail side guided member 15 are provided so as to project upward from the upper end surface of the sliding door panel 10 in the present embodiment. ing. With such a configuration, the door end side guided member 11 and the door tail side guided member 15 are provided in an attached shape on one side (front side) or the other side (rear side) of the sliding door panel 10 in the door thickness direction. Compared with the above, the sliding door panel 10 can have a neat appearance on both sides in the door thickness direction, and the appearance can be improved. Further, the door tip side guided member 11 and the door tail side guided member 15 are provided so as to be substantially within the door thickness of the sliding door panel 10 in the door thickness direction. In the illustrated example, a part of the runner main bodies 12 and 16 of the door end side guided member 11 and the door tail side guided member 15 slightly protrudes from one side surface of the sliding door panel 10 in the door thickness direction. An example of the configuration is shown, but the present invention is not limited to this aspect.

Further, as shown in FIG. 2, the door end side guided member 11 and the door tail side guided member 15 are attached to the mounting recesses provided on both sides of the upper end of the sliding door panel 10 in the door width direction. Is provided. As shown in FIG. 4, the runner bodies 12 and 16 of the door end side guided member 11 and the door tail side guided member 15 are provided with support portions 11a, which are provided so as to project upward from each mounting portion. It is supported by 15a. The runner bodies 12 and 16 are rotatably held around the axis along the vertical direction with respect to the sliding door panel 10. These runner bodies 12 and 16 may be rotatably held with respect to the shaft-shaped support portions 11a and 15a, or with respect to the support portions 11a and 15a rotatably with respect to the mounting portion. It may be fixedly provided. These support portions 11a and 15a are provided so as to be located substantially at the center of the sliding door panel 10 in the door thickness direction. Further, these support portions 11a and 15a have the same protruding dimensions from the upper end surface of the sliding door panel 10.

The runner bodies 12 and 16 of the door end side guided member 11 and the door tail side guided member 15 are arranged at the same height as each other.
The runner body 12 of the door end side guided member 11 is made rotatable about an axis along the groove width direction of the upper rail 30 so as to run on the guide piece portion 38 of the door end side guide portion 36 described later. A single-ring rolling element 13 is provided. The rolling element 13 is provided on the side surface of the runner body 12 on the opposite wall side (front side) in an attached shape. Further, the side surface of the runner body 12 on the wall surface 3a side has a flat surface shape.
Further, as shown in FIG. 3A, a guided roller 14 which is rotatable around an axis along the vertical direction is provided on the lower surface side of the runner main body 12 of the door end side guided member 11. .. As shown in FIG. 4A, the guided roller 14 is provided so as to be located at a substantially central portion in the door thickness direction in the door thickness direction. Further, in the present embodiment, a pair of guided rollers 14 and 14 are provided on the lower surface side of the runner main body 12 at equal intervals in the groove longitudinal direction from the support portion 11a (see FIG. 3A). ..

The runner body 16 of the door tail side guided member 15 is made rotatable about an axis along the groove width direction of the upper rail 30 so as to run on the guide piece portion 42 of the door tail side guide portion 40 described later. A single-ring rolling element 17 is provided. The rolling element 17 has the same size and shape as the rolling element 13 of the door end side guided member 11, and is provided on the side surface of the runner main body 16 on the wall surface 3a side. Further, the side surface of the runner body 16 on the opposite wall surface side (front side) has a flat surface shape.
Further, as shown in FIGS. 2 and 5A, a guided roller 18 is provided on the upper surface side of the runner body 16 of the door tail side guided member 15 so as to be rotatable about an axis along the vertical direction. It has a structure. As shown in FIG. 4B, the guided roller 18 is provided so as to be located at a substantially central portion in the door thickness direction in the door thickness direction. Further, in the present embodiment, a pair of guided rollers 18 and 18 are provided on the upper surface side of the runner main body 16 at equal intervals in the groove longitudinal direction from the support portion 15a.

Further, as shown in FIG. 3B, a guided roller 19 which is rotatable around an axis along the vertical direction is provided on the lower surface side of the runner main body 16. As shown in FIG. 4B, the guided roller 19 is provided so as to be located at a substantially central portion in the door thickness direction in the door thickness direction. Further, in the illustrated example, one guided roller 19 is provided so as to be located on one side of the support portion 15a on the lower surface side of the runner body 16 in the groove longitudinal direction, but the support portion 15a is similarly provided. A pair of guided rollers 19 may be provided at equal intervals in the longitudinal direction of the groove. The guided rollers 14, 14 of the door end side guided member 11 and the guided rollers 18, 18, 19 of the door tail side guided member 15 have the same size and shape as each other.

The upper rail 30 has a long shape so as to substantially follow the door width direction. In the present embodiment, as shown in FIG. 5B, the front side wall portion 37 of the upper rail 30 is provided so as to be located on the opposite wall surface side over the entire length of the straight portion of the wall side side wall portion 41. There is. For example, if only the door tail side portion of the straight portion of the front side wall portion 37 and the door end side portion of the straight portion of the wall side side wall portion 41 are provided so as to overlap each other in the groove width direction, the upper rail is provided. Steps are more noticeable on the opposite wall surface side (front side) of the straight portion of 30. According to the present embodiment, such a step is not formed on the opposite wall surface side of the upper rail 30, and the appearance can be improved.
The door end side guide portion 36 of the upper rail 30 is provided with a guide piece portion 38 that protrudes from the lower end portion of the front side wall portion 37 toward the wall surface 3a side and on which the rolling element 13 of the door end side guided member 11 travels. Has been done. Further, the guide piece portion 42 of the door tail side guide portion 40 of the upper rail 30 projects from the lower end portion of the wall side side wall portion 41 toward the opposite wall surface side, and the rolling element 17 of the door tail side guided member 15 travels. Is provided.

With the above configuration, the sliding door panel 10 can be suspended and supported by the door end side guide portion 36 and the door tail side guide portion 40 and slid by a hanging type. As a result, unlike the present embodiment, the floor 2 side on the front side of the doorway 6 and the wall body 3 is not provided with a long floor rail or the like in the door width direction. Further, since the runner bodies 12 and 16 provided with the rolling elements 13 and 17 are rotatably held around the axis along the vertical direction with respect to the sliding door panel 10, the straight portions 36a and 40a of the upper rail 30 and the same. The slanted portions 36b and 40b can be smoothly changed in direction while traveling. Further, for example, guide pieces are provided on both sides of the door end side guide portion and the door tail side guide portion in the groove width direction, and the groove width direction of the guided portion of the door end side guided member and the door tail side guided member is provided. It is also conceivable to provide a pair of rolling elements on both sides. In this case, at the intersection of the oblique portion of the door tail side guide portion and the straight portion of the door end side guide portion, an opening through which the support portion supporting the runner body of the door tail side guided member is passed is opened on the door end side. It is desirable to provide the guide portion on the guide piece portion on the wall surface side of the straight portion of the guide portion. In such a case, the rolling element on the wall surface side of the door end side guided member rattles when passing through the opening, and the counter of the door tail side guided member that moves between the straight portion and the oblique portion. It is conceivable that the rolling element on the wall surface rattles when passing through the opening between the guide pieces. According to the present embodiment, the single ring-shaped rolling elements 13 and 17 on the door end side and the door tail side respectively travel on the guide pieces 38 and 42 provided in a series, respectively. It is possible to suppress the occurrence of such rattling.

As shown in FIG. 4, these guide piece portions 38 and 42 are provided so as to have the same height as each other. Further, as shown in FIG. 5B, the guide piece portion 38 on the opposite wall surface side constituting the door end side guide portion 36 is provided over the entire length of the front side wall portion 37 in the groove longitudinal direction in the present embodiment. Has been done. That is, the guide pieces 38 and 42 on both sides in the groove width direction are provided from the door tail side end of the upper rail 30.
The straight portion 36a of the door tip side guide portion 36 and the straight portion 40a of the door tail side guide portion 40 are parallel to and along the wall surface 3a on one side (front side) of the wall body 3 in the wall thickness direction. It is supposed to be arranged. An oblique portion 36b is provided at the end of the straight portion 36a of the door end side guide portion 36 so as to be continuous with the door end side. An oblique portion 40b is provided at the end of the straight portion 40a of the door tail side guide portion 40 on the door end side so as to be continuous. As shown in FIG. 5B, the diagonal portion 36b of the door end side guide portion 36 and the oblique portion 40b of the door tail side guide portion 40 are provided parallel to each other. The state in which the runner bodies 12 and 16 are located at the tips of the slanted portions 36b and 40b is the closed position of the sliding door panel 10 (see FIGS. 1 (c) and 5 (c)).

The guide piece portion 38 of the door end side guide portion 36 is provided in a series over the entire length of the straight portion 36a and the oblique portion 36b. The guide piece portion 38 is formed so as to have an arc shape in a plan view at a boundary portion (corner portion) between the straight portion 36a and the oblique portion 36b. Further, in the illustrated example, an example is shown in which a projecting piece portion projecting upward is provided at the tip portion of the guide piece portion 38 in the projecting direction. That is, the projecting piece portion, the guide piece portion 38, and the front side wall portion 37 are opened upward, and the receiving groove for receiving the rolling element 13 is partitioned.

Further, in the present embodiment, the door end side guide portion 36 is arranged on the door end side of the branch portion of the door tail side guide portion 40 with the oblique portion 40b so as to be parallel to and face the front side wall portion 37. The door end side facing wall portion 47 is provided. The door end side facing wall portion 47 is provided so as to hang down from the end portion of the bottom wall portions 32 and 34 on the wall surface 3 side. Further, a projecting piece portion 48 is provided at the lower end portion of the door end side facing wall portion 47 so as to project toward the guide piece portion 38. The door end side facing wall portion 47 and the protruding piece portion 48 are substantially parallel to the straight portion 36a of the door end side guide portion 36 and the front side wall portion 37 and the guide piece portion 38 of the oblique portion 36b, respectively. , A straight portion and a diagonal portion are provided.
Further, the straight portions of the door tip side facing wall portion 47 and the projecting piece portion 48 are abbreviated as the wall side side wall portion 41 and the guide piece portion 42 of the straight portion 40a of the door tail side guide portion 40 when viewed in the groove longitudinal direction. It is provided to match. Further, in the present embodiment, as shown in FIG. 2, a portion including the bottom wall portion 34 of the oblique portion 36b of the door end side guide portion 36 is joined to a member separated from the other portions. It is said.

The protruding direction tip surface of the guide piece portion 38 of the door tip side guide portion 36, and the protruding direction tip surface of the guide piece portion 42 and the projecting piece portion 48 of the straight portion 40a of the door tail side guide portion 40 facing the guide piece portion 38. Consists of opening side guide side wall portions 39, 43, 49 for guiding the guided roller 14. These opening side guide side wall portions 39, 43, 49 are provided on the opening side of the guide groove 31 so as to sandwich the guided roller 14 from both sides in the groove width direction, and the guided roller 14 is provided on the straight portion of the door end side guide portion 36. It is configured to guide along the 36a and the skew portion 36b. With such a configuration, it is possible to prevent the single-wheel-shaped rolling element 13 running on the guide piece portion 38 of the door end side guide portion 36 from tilting, and the rolling body 13 can be combined with the straight portion 36a and the linear portion 36a. It can be smoothly guided along the diagonal portion 36b. Further, in the present embodiment, the runner main body 12 of the door end side guided member 11 is provided with a pair of guided rollers 14 and 14 at equal intervals in the groove longitudinal direction from the support portion 11a. Therefore, the straightness of the straight portion 36a can be improved, and the direction can be smoothly changed at the corner portion. The dimensions along the groove width direction between the opening-side guide side wall portions 39 and the opening-side guide side wall portions 43 and 49 facing each other are set according to the outer diameters of the guided rollers 14 and 14.

The guide piece portion 42 of the door tail side guide portion 40 is provided in a series over the entire length of the straight portion 40a and the oblique portion 40b as described above. The guide piece portion 42 is formed so as to have an arc shape in a plan view at a boundary portion (corner portion) between the straight portion 40a and the oblique portion 40b. Further, in the illustrated example, similarly to the above, an example is shown in which a projecting piece portion projecting upward is provided at the tip portion of the guide piece portion 42 in the projecting direction. That is, the projecting piece portion, the guide piece portion 42, and the wall side side wall portion 41 are opened upward, and the receiving groove for receiving the rolling element 17 is partitioned.
Further, in the present embodiment, the door tail side facing wall portion 44 is provided so as to be parallel to and facing the wall side side wall portion 41 of the diagonal portion 40b of the door tail side guide portion 40. The door tail side facing wall portion 44 is provided from the end portion on the opposite wall side of the bottom wall portion 33 of the door tail side oblique portion provided so as to branch from the linear bottom wall portion 32 in the diagonal door thickness direction. It is provided so that it hangs down. Further, a projecting piece portion 45 is provided at the lower end portion of the door tail side facing wall portion 44 so as to project toward the guide piece portion 42.
The door tail side facing wall portion 44 and the protruding piece portion 45 are provided so as to be substantially parallel to the wall side side wall portion 41 and the guide piece portion 42 of the oblique portion 40b of the door tail side guide portion 40, respectively. ..

The protruding direction tip surface of the guide piece portion 42 of the door tail side guide portion 40, and the protruding direction tip surface of the guide piece portion 38 and the protruding piece portion 45 of the straight portion 36a of the door end side guide portion 36 facing the guide piece portion 42. Consists of the opening side guide side wall portions 43, 39, 46 that guide the guided roller 19. The opening side guide side wall portions 43, 39, 46 are provided on the opening side of the guide groove 31 so as to sandwich the guided roller 19 from both sides in the groove width direction, and guide the guided roller 19 to the door tail side. It is configured to guide along the straight portion 40a and the oblique portion 40b of the portion 40. The dimensions along the groove width direction between the opening-side guide side wall portions 43 and the opening-side guide side wall portions 39, 46 facing each other are set according to the outer diameter of the guided roller 19.

Further, in the present embodiment, the guided rollers 18 on the upper surface side of the runner body 16 of the door tail side guided member 15 are mounted on the bottom wall portions 32 and 33 of the upper rail 30 with the straight portion 40a of the door tail side guide portion 40 and the straight portion 40a. The bottom side guide groove 35 for guiding along the diagonal portion 40b is provided. With such a configuration, it is possible to prevent the single-wheel-shaped rolling body 17 running on the guide piece portion 42 of the door tail side guide portion 40 from tilting, and the rolling body 17 can be combined with the straight portion 40a and the straight portion 40a. It can be smoothly guided along the diagonal portion 40b.
Further, in the present embodiment, the runner main body 16 of the door tail side guided member 15 is provided with a pair of guided rollers 18 and 18 at equal intervals in the groove longitudinal direction from the support portion 15a. Therefore, the straightness in the straight portion 40a can be improved, and the direction can be smoothly changed in the corner portion.

As shown in FIGS. 4 and 5A, the bottom guide groove 35 is formed in a series on the straight portions 40a of the door tail side guide portion 40 and the bottom wall portions 32 and 33 of the oblique portion 40b, and is on the lower side. It is provided so as to open toward. The bottom side guide groove 35 is provided along the straight portion 40a and the oblique portion 40b of the door tail side guide portion 40. Further, the groove width dimension of the bottom side guide groove 35 is set according to the outer diameter of the guided rollers 18 and 18.
In the illustrated example, an example is shown in which the end portion of the upper rail 30 on the door tail side and the tip end portion of the oblique portion 40b on the door tail side are opened along the longitudinal direction of the groove. It may be provided.
Further, the upper rail 30 having the above-described configuration may be fixed to an appropriate fixing target on the ceiling side via a fixing tool such as a screw or an appropriate fixing tool. Further, the upper rail 30 may be fixed to the upper frame constituting the opening frame, or may be a ceiling panel or a ceiling base.
Further, an appropriate catch mechanism for restricting the sliding door panel 10 to the fully open position and the closed position, an assisting mechanism for assisting the sliding door panel 10 to the closed side, and a sliding door panel 10 moving to the fully open side or the closed side at an appropriate position on the upper rail 30. A buffer mechanism or the like for decelerating the speed may be provided.

In the sliding door device 1 having the above configuration, as shown in FIGS. 1 (a), 5 (a), and (b), the sliding door panel 10 has a wall at the fully open position where the doorway 6 is opened. It is arranged so as to be located on the front side of the wall surface 3a of the body 3. In the illustrated example, an example is shown in which the end surface of the sliding door panel 10 on the door end side is arranged so as not to be located in the doorway 6 in the door width direction. That is, although an example is shown in which a so-called unremaining structure is not formed at the fully open position, a so-called unremaining structure may be formed.
When the sliding door panel 10 in the fully open position is moved to the closed side, as shown in FIGS. 1 (b) and 5 (a) and (b), the rolling element 13 of the door end side guided member 11 is doord. It travels on the guide piece portion 38 of the straight portion 36a of the front side guide portion 36. Further, the rolling element 17 of the door tail side guided member 15 travels on the guide piece portion 42 of the straight portion 40a of the door tail side guide portion 40.
Then, when the sliding door panel 10 is further moved to the closed side and the runner bodies 12 and 16 reach the skewed portions 36b and 40b via the corners of the straight portions 36a and 40a and the skewed portions 36b and 40b, the sliding door is reached. The panel 10 moves toward the doorway 6 side, which is diagonally rearward in the door thickness direction.

At this time, the direction of the runner main body 12 of the door end side guided member 11 is smoothly changed by the guided rollers 14 and 14 on the lower surface side that move between the opening side guide side wall portions 39 and 49 of the corner portion. Further, the runner main body 16 of the door tail side guided member 15 is smoothly changed in direction by the guided rollers 18 and 18 on the upper surface side that move the corners of the bottom guide groove 35. It should be noted that the guided rollers 14, 14, 18, and 18 may not be provided, and the directions of the runner bodies 12 and 16 may be changed by the above-mentioned regulation by the receiving groove.
Then, when the runner bodies 12 and 16 reach the tips of the oblique portions 36b and 40b, the sliding door panel 10 is in the closed position as shown in FIGS. 1 (c) and 5 (c). In the present embodiment, the surface of the sliding door panel 10 facing the front side and the wall surface 3a are substantially flush with each other at the closed position. In the illustrated example, the surface of the sliding door panel 10 in the closed position facing the front side is located slightly in front of the wall surface 3a, but the present invention is not limited to this aspect.
Further, if the sliding door panel 10 in the closed position is moved to the open side, it is substantially the opposite of the above, that is, the runner bodies 12 and 16 pass through the diagonal portions 36b and 40b and the corner portions and the straight portions 36a and 40a. It reaches the fully open position.

As shown in FIG. 6B, the lower end guide member 20 is provided so as to extend toward the sliding door panel 10 side, and the guide portion 29 is inserted into the guided groove 7 at the lower end of the sliding door panel 10 at the tip end portion. The arm-shaped holding portion 28 provided with the above is provided. Further, the lower end guide member 20 includes a lower rail 22 for guiding the guided portion 25 provided on the base end side of the arm-shaped holding portion 28. Further, the lower rail 22 holds the guided portion 25 at a linear guide position in which the guide portion 29 is inserted into the guided groove 7 of the sliding door panel 10 that moves in parallel with the wall surface 3a. Further, the lower rail 22 guides the guided portion 25 so that the guide portion 29 located at the door tail side end of the guided groove 7 moves in conjunction with the sliding door panel 10 that moves in the diagonal door thickness direction. .. Further, the guided groove 7 is provided with a holding portion 8 for holding the guide portion 29 located at the end of the guided groove 7 on the door tail side so as to be detachable.

With the above configuration, the lower end side of the sliding door panel 10 can be guided parallel to the wall surface 3a by the guide portion 29 inserted into the guided groove 7, and the sliding door panel 10 can be guided in the diagonal door thickness direction. Can be done. Further, when the sliding door panel 10 moves in the diagonal door thickness direction from the closed position to the open side, the guide portion 29 of the lower end guide member 20 is held at the door tail side end portion of the guided groove 7 of the sliding door panel 10. be able to. As a result, the lower end side of the sliding door panel 10 can be stably guided in the diagonal door thickness direction by the guide portion 29 that moves together with the arm-shaped holding portion 28 whose base end side is guided by the lower rail 22.
Further, the lower end guide member 20 is provided so as to be located near the end of the sliding door panel 10 at the closed position on the door tail side, and is guided by the guided groove 7 of the sliding door panel 10 that moves between the closed position and the fully opened position. It is assumed that the portion 29 is inserted. Therefore, the lower end guide is compared with a structure in which the pin body that is not inserted into the guide groove and the sliding door groove of the guide body protrudes from the floor portion and the guide body protrudes from the lower end portion of the sliding door. It is possible to prevent the member 20 from becoming an obstacle, and it is possible to improve the appearance.

As shown in FIGS. 6B and 7, the guided groove 7 of the sliding door panel 10 is provided so as to open downward on the lower end surface of the sliding door panel 10. The guided groove 7 may be provided directly at the lower end of the sliding door panel 10, but in the illustrated example, it is provided at the groove member attached to the mounting recess provided at the lower end of the sliding door panel 10. It is supposed to have been done.
Further, the guided groove 7 is provided over the entire length so as to extend in the door width direction. In the illustrated example, an example is shown in which the guided groove 7 is provided so as to open from the portion where the holding portion 8 of the door tail side end is provided to the door end side end face. Instead of such an embodiment, the guided groove 7 may not be opened on the end face on the door end side.
Further, the guided groove 7 is provided so as to be located substantially at the center in the door thickness direction. Further, in the illustrated example, an example is shown in which the guided groove 7 has a substantially rectangular groove shape when viewed in the longitudinal direction of the groove.

The holding portion 8 holds the guide portion 29 when the end of the guided groove 7 of the sliding door panel 10 that moves from the open side to the closed side reaches the guide portion 29 at the linear guide position. Further, the holding portion 8 is capable of holding the guide portion 29 when the sliding door panel 10 is moved from the closed position toward the open side in the diagonal door thickness direction. Further, the holding portion 8 is configured to release the holding of the guide portion 29 with the movement of the sliding door panel 10 that moves to the open side with respect to the guide portion 29 at the linear guide position.
In the present embodiment, the holding portion 8 is configured to rotatably hold a substantially columnar guide portion 29 along the axial direction in the vertical direction. Further, the holding portion 8 includes a pair of holding piece portions 8a, 8a provided at intervals in the door thickness direction so as to partition the receiving recess 9 for receiving the guide portion 29.

The receiving recess 9 is provided so as to open toward the lower side and the door end side.
The pair of holding piece portions 8a and 8a are configured to hold the guide portions 29 so as to be sandwiched from both sides in the door thickness direction. These holding piece portions 8a and 8a are provided so as to extend from the door tail side toward the door end side, and are provided so as to be close to each other from the intermediate portion in the extension direction toward the tip portion in the extension direction. The dimension between the tips of the holding pieces 8a and 8a along the door thickness direction is smaller than the outer diameter of the guide portion 29. Further, the tip portions of the holding piece portions 8a and 8a are provided with an inclined surface or a curved surface that invites the guide portion 29 that moves relative to these to be easily received by the receiving recess 9. There is.
Further, on the outside of the holding pieces 8a and 8a in the door thickness direction (on the side of the anti-reception recess), a space is provided to allow elastic deformation of the holding pieces 8a and 8a to the outside in the door thickness direction. The guide portion 29 is configured to be received and held in the receiving recess 9 with elastic deformation of the holding pieces 8a and 8a, and is separated from the receiving recess 9.

The holding portion 8 that holds the guide portion 29 located at the end of the guided groove 7 on the door tail side so as to be detachable is not limited to the one having the above-described configuration. For example, the holding portion 8 may be a plunger or the like having a ball-shaped or pin-shaped advancing / retreating portion that is urged from both sides of the guided groove 7 in the groove width direction and is provided so as to be able to advance / retreat in the groove width direction. It may be a leaf spring shape that is elastically deformable in the groove width direction. Further, the holding portion 8 may have a magnet catch shape. In this case, one of the holding portion 8 and the guide portion 29 may be provided with a magnetic material or a magnet that attracts the magnet provided on the other side. As the holding portion 8 that holds the guide portion 29 in a detachable manner, other various configurations can be adopted.

In the present embodiment, the lower rail 22 is arranged so as to be embedded in the lower end of the wall body 3 in which the door tail side end of the sliding door panel 10 in the closed position is close and located on the floor 2. It is said that. With such a configuration, the lower rail 22 can be installed more easily than the one in which the lower rail 22 is embedded in the floor 2, and dust and the like can enter the lower rail 22. And accumulation can be suppressed.
Further, in the present embodiment, the lower rail 22 is provided in the guide unit main body 21 whose dimensions along the wall thickness direction are the same as the wall thickness of the wall body 3. With such a configuration, both sides of the guide unit main body 21 in the wall thickness direction can be made substantially the same plane as both sides of the wall body 3 in the wall thickness direction, and the positioning property and appearance can be improved.

The guide unit main body 21 is embedded in the lower end portion of the wall body 3 on the door tail side in the opening width direction of the doorway 6. In the illustrated example, an example is shown in which the guide unit main body 21 is provided so as to penetrate the lower end portion of the door tail side vertical frame 5 in the opening width direction. Further, an example is shown in which an inclined surface corresponding to the inclined surface of the door tail side vertical frame 5 is provided at the end of the guide unit main body 21 on the entrance / exit 6 side.
In the present embodiment, as shown in FIG. 6A, the guide unit main body 21 is provided with a separate lower rail 22 embedded in the guide unit main body 21. The guide unit main body 21 is provided with a rail accommodating recess 21a for accommodating the lower rail 22. The rail accommodating recess 21a has a shape corresponding to the lower rail 22. Further, the guide unit main body 21 is provided so as to allow movement of the rolling element holding portion 27 and the arm-shaped holding portion 28 provided on the floor 2 side of the guided portion 25 that moves along the lower rail 22. There is a receiving recess 21b for receiving the above. The receiving recess 21b is provided on the lower side so as to communicate with the rail accommodating recess 21a, and is provided so as to open toward the lower side and the sliding door panel 10 side.

The guide unit main body 21 may be divided in the width direction of the lower rail 22 at a portion where the rail accommodating recess 21a is provided so that the lower rail 22 can be accommodated, and the guide unit main body 21 may be divided toward the upper side. A cover portion may be provided to cover the upper side of the rail accommodating recess 21a to be opened. Further, the guide unit main body 21 may be appropriately fixed to the wall body 3, the floor 2, the door tail side vertical frame 5, etc. via a fixing tool such as a screw or an appropriate fixing tool.
Further, instead of the configuration in which the lower rail 22 which is a separate body is provided in an embedded shape in the guide unit main body 21, the lower rail 22 may be integrally provided. In other words, the outer shape of the lower rail 22 may be shaped like the guide unit main body 21.

As shown in FIGS. 7 and 8, the lower rail 22 is substantially parallel to the diagonal portions 36b and 40b of the door end side guide portion 36 and the door tail side guide portion 40 of the upper rail 30 and their neighboring portions. It is formed so as to be. That is, in the present embodiment, the lower rail 22 is provided with a curved guide portion 22b that guides the guided portion 25 in an arc shape in a plan view between the straight guide position and the closed position of the sliding door panel 10. There is. With such a configuration, the lower end side of the sliding door panel 10 can be smoothly guided as compared with the one guided by the guide pin of the slider that slides diagonally in a straight line between the protruding state and the retired state. It is also possible to reduce the size of the lower rail 10 along the door thickness direction.
The curved guide portion 22b of the lower rail 22 is provided so as to connect the straight portion 22a extending in the door width direction and the oblique portion 22c extending in the diagonal door thickness direction. The dimension of the straight portion 22a along the rail longitudinal direction is sufficient as long as the guided portion 25 can be held at the linear guide position, and is shorter than the length of the straight portions 36a and 40a of the upper rail 30. The dimension of the straight portion 22a along the rail longitudinal direction may be an appropriate dimension from the viewpoint of making the lower rail 22 compact.

Further, as shown in FIG. 6B, the lower rail 22 is provided with a guide groove 23 for guiding the guided portion 25 so as to open downward. The lower rail 22 has a bottom wall portion for partitioning the groove bottom side of the guide groove 23, side wall portions on both sides for partitioning both sides in the groove width direction of the guide groove 23, and directions facing each other from the lower ends of the side wall portions on both sides. A protruding guide piece is provided.
Further, as shown in FIGS. 7 and 8, the lower rail 22 is provided with a holding portion 24 for holding the guided portion 25 at the linear guide position. The holding portion 24 is configured to hold the guided portion 25 in a detachable manner by adsorption by magnetic force. That is, one of the holding portion 24 and the guided portion 25 is provided with a magnet, and the other is provided with a magnetic material or a magnet that is attracted to one of the magnets. The holding portion 24 allows the holding portion 8 of the guided groove 7 of the sliding door panel 10 that moves from the open side to the closed side to hold the guide portion 29 with elastic deformation of the holding pieces 8a and 8a. The holding force (adsorption force) is set. The holding portion 24 is not limited to such a configuration, and may be configured to be able to hold the guided portion 25 with elastic deformation as described above, and may have various other configurations. It is possible to adopt the one.

The guided portion 25 has a configuration in which rolling elements 26a and 26a traveling on the guide pieces on both sides of the lower rail 22 are provided on both sides of the runner main body 26 in the groove width direction. These rolling elements 26a and 26a are rotatable about an axis along the groove width direction and are provided coaxially with each other. Further, these rolling elements 26a and 26a have the same size and shape as each other.
Further, the guided portion 25 is provided with a guided roller 26b which is rotatable around an axis along the vertical direction. Further, the lower rail 22 is provided with guide side wall portions 22d and 22d so as to sandwich the guided roller 26b from both sides in the groove width direction and guide the guided roller 26b along the curved guide portion 22b. With such a configuration, the guided portion 25 can be smoothly guided along the curved guide portion 22b. In the present embodiment, the guided roller 26b is provided on the lower surface side of the runner body 26, and the guide side wall portions 22d and 22d of the lower rail 22 are the tip surfaces of the guide pieces on both sides of the lower rail 22 in the protruding direction facing each other. The dimensions along the groove width direction between the guide side wall portions 22d and 22d are set according to the outer diameter of the guided roller 26b.

The guided roller 26b is provided so as to be located at a substantially central portion in the door thickness direction of the runner main body 26 in the door thickness direction.
Further, in the present embodiment, the guided portion 25 is provided with a pair of guided rollers 26b, 26b at intervals in the longitudinal direction of the groove. With such a configuration, the guided portion 25 can be guided by the curved guide portion 22b so as to change the direction more smoothly. The guided rollers 26b, 26b are provided at equal intervals in the direction along the groove longitudinal direction from the axial centers of the rolling elements 26a, 26a on both sides. Further, these guided rollers 26b and 26b have the same size and shape as each other. In addition, instead of the above-described embodiment, the guided roller 26b is provided on the upper surface side of the runner body 26, and the bottom side guide groove for guiding the guided roller 26b is provided on the groove bottom side of the lower rail 22. May be. Further, a configuration may be configured in which such a guided roller 26b is not provided. In this case, the guide pieces on both sides of the lower rail 22 may be provided with receiving grooves similar to those of the upper rail 30 for receiving the rolling elements 26a and 26a.

Further, in the present embodiment, as shown in FIG. 6B, a rolling element 27a that is free to travel on the traveling object on the floor 2 side is provided on the base end side of the arm-shaped holding portion 28. .. With such a configuration, the base end side of the arm-shaped holding portion 28 can be smoothly moved along the lower rail 22.
The rolling element 27a is rotatably held by a rolling element holding portion 27 provided on the lower side of the guided portion 25. The pair of rolling elements 26a, 26a provided on the runner main body 26 described above are capable of traveling on the guide piece portion in a state where the rolling elements 27a can travel on the traveling target on the floor 2 side. .. Further, the runner main body 26 and the rolling element holding portion 27 of the guided portion 25 are supported shafts provided so as to be positioned substantially directly below the axial centers of the pair of rolling elements 26a and 26a provided on the runner main body 26. Is fixedly connected by. In the illustrated example, an example is shown in which the rolling element holding portion 27 is formed into a substantially cylindrical column coaxial with the support shaft.

Further, the rolling element 27a has a ball caster shape in the present embodiment. In addition, instead of such an aspect, the rolling element 27a may be made into a roller shape.
Further, in the figure, an example is shown in which the traveling target of the rolling element 27a on the floor 2 side is the floor 2. For example, the guide unit main body 21 is provided with a plate-shaped traveling portion on which the rolling element 27a travels. Such a configuration may be used.
The arm-shaped holding portion 28 is provided so as to extend from the rolling element holding portion 27 toward the sliding door panel 10. As shown in FIG. 7, the arm-shaped holding portion 28 is configured to be arranged so that the longitudinal direction is along the door thickness direction at the linear guide position. Further, as shown in FIG. 8B, the sliding door panel 10 is arranged so as to be oriented in the longitudinal direction at the closed position so as to be orthogonal to the groove longitudinal direction of the oblique portion 22c.

The guide portion 29 is provided so as to project upward from the tip end portion of the arm-shaped holding portion 28. As shown in FIG. 6B, the guide portion 29 is configured such that the tip portion in the protruding direction is inserted into the guided groove 7 of the sliding door panel 10. The guide portion 29 is not limited to a substantially columnar shape, and may be, for example, a roller shape that is rotatable around an axis along the vertical direction.
At both ends of the guide groove 23 of the lower rail 22 in the groove longitudinal direction, appropriate stoppers are provided to restrict the movement of the guided portion 25 to the outside in the groove longitudinal direction. Further, an appropriate cushioning portion for alleviating the impact with the guided portion 25 may be provided at both ends of the guide groove 23 in the groove longitudinal direction. Further, instead of providing the lower rail 22 on the guide unit main body 21 having the same thickness as the wall body 3 as described above, the lower rail 22 is provided in the notch-shaped recess provided at the lower end of the wall body 3. It may be installed in a mode such as installation.

In the lower end guide structure as described above, the lower end side of the sliding door panel 10 is guided as follows.
When the sliding door panel 10 is in the fully open position, as shown in FIG. 7A, the guide portion 29 of the lower end guide member 20 held by the holding portion 24 in the linear guide position is on the door end side of the guided groove 7 of the sliding door panel 10. It is said that it is inserted at the end. When the sliding door panel 10 is moved from the fully open position toward the closed side, the lower end side of the sliding door panel 10 is guided by the guide portion 29 in parallel with the wall surface 3a. That is, the runout of the sliding door panel 10 on the lower end side in the door thickness direction is suppressed. When the end of the guided groove 7 of the sliding door panel 10 is further moved to the closed side and reaches the guide portion 29 at the linear guide position, the guide portion 29 is held by the holding portion 8 and the sliding door moves to the closed side. Together with the panel 10, it moves from the straight guide position in the diagonal door thickness direction. As shown in FIG. 8A, the guided portion 25 of the lower end guide member 20 is released from being held by the holding portion 24 as the guide portion 29 moves from the linear guide position, and the guide groove of the lower rail 22 is released. Move along 23. That is, the guided portion 25 moves along the straight portion 22a, the curved guide portion 22b, and the oblique portion 22c of the lower rail 22.

The sliding door panel 10 is guided by a guide portion 29 whose movement is restricted via an arm-shaped holding portion 28 by a guided portion 25 that moves as described above, and the closing side while suppressing runout on the lower end side of the door tail side. Move to. That is, the lower end side of the sliding door panel 10 on the door tail side is guided by the guide portion 29 that moves in an arc from the straight guide position together with the guided portion 25 that moves along the lower rail 22 and further moves in the diagonal door thickness direction. Will be done.
Then, as shown in FIG. 8B, the guided portion 25 reaches the end of the oblique portion 22c of the lower rail 22, and the sliding door panel 10 is in the closed position.
Contrary to the above, when moving the sliding door panel 10 from the closed position to the open side, as shown in FIG. 8A, the guide portion 29 is held by the holding portion 8 of the guided groove 7. The guided portion 25 moves along the lower rail 22 on the opposite side to the above. That is, the guided portion 25 moves along the oblique portion 22c, the curved guide portion 22b, and the straight portion 22a of the lower rail 22.

The lower end side of the sliding door panel 10 on the door tail side is guided by the guide portion 29 that moves in the diagonal door thickness direction together with the guided portion 25 that moves along the lower rail 22 and further moves in an arc.
Then, as shown in FIG. 7B, if the guided portion 25 is in the linear guide position, that is, in the position held by the holding portion 24, the movement of the guided portion 25 is suppressed, thereby suppressing the movement of the guided portion 25. , The guide unit 29 is also restrained from moving at the straight guide position. If the sliding door panel 10 is further moved to the open side while the guide portion 29 is in the straight guide position in this way, the holding of the guide portion 29 with respect to the holding portion 8 of the guided groove 7 is released. Further, as shown in FIG. 7A, the lower end side of the sliding door panel 10 is guided in parallel with the wall surface 3a by the guide portion 29, and is in the fully open position.

In this embodiment, an example is shown in which the door end side guided member 11 and the door tail side guided member 15 are provided so as to project upward from the upper end surface of the sliding door panel 10. However, it is not limited to such an aspect. For example, the door end side guided member 11 and the door tail side guided member 15 may be provided on one side of the sliding door panel 10 in the door thickness direction in an attached manner.
Further, in the present embodiment, an example is shown in which the front side wall portion 37 of the upper rail 30 is provided so as to be located on the opposite wall surface side over the entire length of the straight portion of the wall side side wall portion 41. It is not limited to the mode. For example, only the door tail side portion of the straight portion of the front side wall portion 37 and the door end side portion of the straight portion of the wall side side wall portion 41 may be provided so as to overlap each other in the groove width direction.
Further, in the present embodiment, an example is shown in which the upper rail 30 is provided with the guide piece portions 38, 42 on which the single-wheel-shaped rolling elements 13 and 17 travel, but the guided member 11 on the upper end side of the sliding door panel 10 The 15 and the upper rail 30 can be modified in various ways. For example, a guided portion having various configurations such as a block shape, a piece shape, and a spherical shape may be provided on the upper end side of the sliding door panel 10 instead of the rolling elements 13 and 17, or the guided portion may be provided. The upper rail 30 may be provided with an appropriate guide groove or the like in accordance with the above.

Further, a door end side guide portion 36 for guiding the door end side guided member 11 is provided on the front side wall portion 37, and a door tail side guide portion 40 for guiding the door tail side guided member 15 is provided on the wall side side wall portion 41. However, the present invention is not limited to such an embodiment. For example, the guided portion of the door tail side guided member 15 may be provided so as to be located above the guided portion of the door end side guided member 11. In this case, the upper rail is provided so as to stack a lower rail portion that guides the guided portion of the door end side guided member 11 and an upper rail portion that guides the guided portion of the door tail side guided member 15. Such an aspect may be used. Further, instead of such an embodiment, the rail portion that guides the guided portion of the door end side guided member 11 and the rail portion that guides the guided portion of the door tail side guided member 15 are provided in the door thickness direction. It may be provided in parallel, or may be provided at intervals in the door width direction.

Further, in the present embodiment, the lower rail 22 is arranged so as to be located on the floor 2, but it may be embedded in the floor 2. In this case, the guide groove 23 of the lower rail 22, the guided portion 25 guided by the guide groove 23, the arm-shaped holding portion 28, the guide portion 29, and the like may be appropriately deformed as necessary. Further, in the present embodiment, an example in which the lower end guide member 20 is provided with the rolling elements 27a traveling on the traveling object on the floor 2 side and the rolling elements 26a and 26a traveling on the guide piece portion of the lower rail 22 is shown. However, one of these may not be provided. Further, instead of such rolling elements 26a and 27a, a guided portion having various configurations such as a block shape, a piece shape, and a spherical shape may be provided, and the guided portion may be provided corresponding to the guided portion. The lower rail 22 may be provided with an appropriate guide groove or the like. The specific configuration of each member included in the sliding door device 1 according to the present embodiment is not limited to the above configuration, and various other modifications are possible.

1 Sliding door device 7 Guided groove 8 Holding part 10 Sliding door panel 11 Door tip side guided member (guided member)
15 Door tail side guided member (guided member)
20 Lower end guide member 21 Guide unit body 22 Lower rail 22b Curved guide part 22d Guide side wall part 25 Guided part 26b Guided roller 27a Rolling body 28 Arm-shaped holding part 29 Guide part 30 Upper rail 36a, 40a Straight part 36b, 40b Oblique Line 2 Floor 3 Wall 3a Wall 6 Doorway

Claims (6)

A straight portion that suspends and supports the guided member on the upper end side of the sliding door panel and guides it in parallel with the wall surface, and an oblique portion that guides the sliding door panel in the diagonal door thickness direction so as to intersect the wall surface at the entrance / exit portion. It is provided with an upper rail that is provided, and a lower end guide member that is provided so as to be located near the door end side end of the sliding door panel at a closed position and guides the lower end side of the sliding door panel.
The lower end guide member is provided so as to extend toward the sliding door panel side, and has an arm-shaped holding portion provided with a guide portion inserted into a guided groove at the lower end portion of the sliding door panel at the tip portion, and the wall surface. The base end side of the arm-shaped holding portion is held at the linear guide position where the guide portion is inserted into the guided groove of the sliding door panel that moves in parallel, while the position is located at the door tail side end portion of the guided groove. The guided groove is provided with a lower rail that guides the base end side of the arm-shaped holding portion so that the guided guide portion moves in conjunction with the sliding door panel that moves in the diagonal door thickness direction. A sliding door device characterized in that a holding portion for holding the guide portion located at the end of the guided groove on the door tail side so as to be detachable is provided. In claim 1,
The lower rail of the lower end guide member is configured to be embedded and located on the floor at the lower end of the wall body to which the door tail side end of the sliding door panel at the closed position is close. A sliding door device characterized by this. In claim 2,
The lower rail of the lower end guide member is a sliding door device provided in a guide unit body having a dimension along the wall thickness direction equal to the wall thickness of the wall body. In claim 2 or 3,
A sliding door device characterized in that a rolling element that is free to travel on a traveling object on the floor side is provided on the base end side of the arm-shaped holding portion. In any one of claims 1 to 4,
The lower rail is curved so that a guided portion provided on the base end side of the arm-shaped holding portion is guided in an arc shape in a plan view between the linear guide position and the closing position of the sliding door panel. A sliding door device characterized in that a guide portion is provided. In claim 5,
The guided portion is provided with a guided roller that is rotatable around an axis along the vertical direction.
The lower rail is provided with a guide side wall portion that sandwiches the guided roller from both sides in the groove width direction and guides the guided roller along the curved guide portion. ..

Images