JP2024179520A - Sliding door device - Google Patents

Abstract

To provide a sliding door device improved in safety and convenience by selectively positioning a door body in an unpulled state and in a non-unpulled state depending on a use state.SOLUTION: A sliding door device includes a door body 10, a retraction region S, a retractable mechanism 20 having a retractable member 22, and a positioning mechanism 30. The door body 10 is configured to be positioned at a first retraction position having an un-pulled portion 10a of the door body 10 by the retractable member 22 abutting against a first positioning member 32 when the retractable member 22 is located at a protruding position if the door body is retracted into the retraction region S, and to be positioned at a second retraction position not having the un-pulled portion 10a of the door body 10 when the retractable member 22 is positioned at a retracted position under which the retractable member 22 does not abut against the first positioning member 32.SELECTED DRAWING: Figure 5

Description

The present invention relates to a sliding door device equipped with a door body that can be opened and closed in the width direction of the opening.

Regarding sliding doors that are freely slidably installed in openings, there is known prior art related to sliding doors that are highly safe and do not trap fingers (see Patent Document 1).

JP 2018-105115 A

The above-mentioned conventional technology is configured to provide a handle or recess on the sliding door body at the end of the sliding door, so that fingers will not be pinched when the sliding door is retracted into the door retraction section and the end of the sliding door comes into contact with the rubber door stop and stops.
However, with this type of sliding door, when the sliding door is retracted into the door retraction section, a portion of the sliding door always remains in the opening, making it difficult to clean the space between the sliding door and the mullion, etc., and there was room for improvement.
In addition, since the sliding door was always left open at the opening, it could be difficult to enter or exit the opening when using a wheelchair or when carrying large luggage, so there was room for improvement.

The present invention was made in consideration of the above circumstances, and aims to provide a sliding door device that improves safety and convenience by allowing the door body to be selectively positioned between a state where it is left open and a state where it is not left open depending on the usage state.

In view of the above problems, one aspect of the present invention has the following configuration.
a retraction region defined on a front side of the wall portion and into which the door body can be retracted; a retraction mechanism provided on the door body and having a retractable member capable of retracting between a protruding position protruding outward from an upper end of the door body and a retracted position retracted inward from an upper end of the door body; and a positioning mechanism having a first positioning member which determines a retracted position of the door body in the retraction region, wherein when the door body is retracted into the retraction region, if the retraction member is located at the protruding position, the retraction member abuts against the first positioning member, thereby positioning the door body at a first retracted position having a portion of the door body to be left unretracted, and when the retraction member is located at the retracted position, the retraction member is configured to be retracted to a second retracted position having no portion of the door body to be left unretracted, without abutting against the first positioning member.

The present invention is configured as described above, so that the door body can be selectively positioned to either a state where it is left open or a state where it is not left open depending on the state in which the sliding door device is being used, thereby improving safety and convenience.

1 is a schematic front view (including a partially enlarged view) showing an entire sliding door device (fully closed state) according to one embodiment of the present invention. Figure 2(a) is a schematic cross-sectional view showing the sliding door device in a fully closed state, Figure 2(b) is a schematic cross-sectional view showing the sliding door device in a first fully open state, and Figure 2(c) is a schematic cross-sectional view showing the sliding door device in a second fully open state. 1 is a schematic front view (including a partially enlarged view) showing a state in which the door body of the sliding door device is positioned at a first retracted position where there is an unsettled portion (first fully open state). FIG. 13 is a schematic front view (including a partially enlarged view) showing a state in which the door body of the sliding door device is positioned at a second retracted position where no door is left open (second fully open state). FIG. 5(a) is a schematic cross-sectional view of the sliding door device shown in FIG. 3 (first fully open state) viewed from above, and FIG. 5(b) is a schematic cross-sectional view of the sliding door device shown in FIG. 4 (second fully open state) viewed from above. FIG. 13 is a schematic front view (including a partially enlarged view) showing another example of a sliding door device. FIG. 7 is a schematic cross-sectional view of the sliding door device shown in FIG. 6 as viewed from above.

(First embodiment)
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described with reference to the drawings. A sliding door device 1 according to an embodiment of the present invention is used as a sliding door device for opening and closing entrances of buildings such as schools, hospitals, elderly care facilities, and homes.

(Sliding door device)
As shown in Figures 1 to 5, the sliding door device 1 includes a door body 10 that opens and closes an opening 5 that opens into a wall portion W of a building's framework, a retractable mechanism 20 provided on the door body 10, and a positioning mechanism 30 that determines the retracted position of the door body 10.
An example of a specific configuration of the sliding door device 1 will be described below.

<Arrangement of door body>
The door body 10 is provided to be movable in the width direction of the opening 5 that opens into the wall portion W of the building frame, and opens and closes the opening 5. As shown in Figures 1 and 2, the opening 5 is defined by, for example, a first vertical frame 2, a second vertical frame 3 arranged at a distance from the first vertical frame, an upper frame 4 connected to the upper ends of the first vertical frame 2 and the second vertical frame 3, and a floor G.

The first vertical frame 2 is provided on the end surface of the opening of the wall section W (Wa) on one side in the left-right direction so as to extend in the vertical direction. A buttress section W (Wc) is provided on the wall section W (Wb) on the other side in the left-right direction so as to extend approximately perpendicular to the wall surface, and a second vertical frame 3 is provided on the end surface of this buttress section W (Wc) so as to extend in the vertical direction. The upper frame 4 is provided so as to be connected to the upper ends of the first vertical frame 2 and the second frame body so as to extend in the approximately horizontal direction.

As shown in FIG. 2, the first vertical frame 2 and the second vertical frame 3 are provided with airtight members 2a and 3a, which are made of an elastic material such as synthetic resin, to ensure airtightness between the first vertical frame 2 and the second vertical frame 3 and the door body 10.

The door body 10 opens and closes the opening 5 defined by the first vertical frame 2, the second vertical frame 3, the upper frame 4, and the floor G. A retraction area S is defined on the front side of the retaining wall section W (Wc) as a space into which the door body 10 can be retracted, and the door body 10 in the fully closed state (see FIG. 2(a)) can be retracted into this retraction area S to be opened to a first fully open state (see FIG. 2(b)) or a second fully open state (see FIG. 2(c)) described below.

<Gate body configuration>
Next, a specific configuration of the door body 10 will be described. The door body 10 includes a door body 11 having a generally rectangular shape when viewed from the front, pull tabs 12 provided on the leading edge sides of both the front and back sides of the door body 11, a plurality of hanging members 13 provided so as to protrude upward from the upper end of the door body 11, and a retractable mechanism 20 provided on the trailing edge side of the door body 11.

[Pull handle]
The pull tab 12 is a recessed portion into which a hand is placed to open and close the door body 10. The pull tab 12 is provided on the leading edge of the front and back sides of the door main body 11, at a remaining portion 10a (see Figs. 2(b) and 3) of the door body 10 that will be left unpulled, as described below. The door body 10 can be opened and closed by placing a hand on the pull tab 12 and applying force in the left-right direction.
In the example of this embodiment, the pull tab 12 is formed as a recess recessed inward from the front and back sides of the door body 11, but is not limited to this example. For example, the pull tab 12 provided on the front side of the door body 11 may be configured as a handle having a grip portion protruding outward from the front side.

[Hanging member]
As shown in Figures 1 and 5, the hanging member 13 has a hanging roller 13a and a support bracket 13b that supports the hanging roller 13a so that it can rotate freely, and is provided at multiple locations (two in the illustrated example) at a predetermined interval on the upper ends of the leading and trailing ends of the door body 11.

The hanging roller 13a is configured to roll while being guided by an upper guide rail (not shown) that is attached and fixed to the main body side.
The support bracket 13b has a plate-shaped support portion 13b1 that supports the roller shaft 13a1 (see FIG. 5) of the hanging roller 13a, an upper arm portion 13b2 that is provided at a substantially right angle from the left and right ends of the upper portion of the support portion 13b1, and a lower space 13c (see FIG. 1) that is defined below the upper arm portion 13b2, and is formed to have a substantially U-shape in a plan view. The support bracket 13b can be formed, for example, by bending a metal plate-shaped member or by joining each component by welding or the like.

The lower end of the support portion 13b1 of the support bracket 13b is attached and fixed to the upper end of the door body 11 by a fixing means such as a screw or by welding, and in this state, the upper piece portion 13b2 and the lower space 13c are positioned so as to face the positioning mechanism 30 described later.
The upper piece 13b2 of the support bracket 13b is configured to be able to come into contact with an abutment portion 33b (see FIG. 4) of the positioning mechanism 30 (described later) and an abutment portion 42b (see FIG. 1) of the door stop member 40. The lower space 13c of the support bracket 13b forms a space into which a first positioning member 32 of the positioning mechanism 30 (described later) can be inserted.

The door body 10 is arranged to be movable in the width direction (left and right direction) of the opening 5 while being movably hung from an upper guide rail (not shown) provided on the main body side by the hanging member 13 configured in this manner.
In addition, the hanging member 13 provided at the upper end of the door body 10 and the upper guide rail (not shown) provided on the main body side are covered with a cover member 6 that can be freely attached and detached to the main body side, as shown in Figure 1, and are configured to be protected from dirt and dust.

The door body 10 may be configured so that the lower end of the door body 10 is guided by a lower guide rail (not shown) laid on the floor G in addition to the upper guide rail.

[Appearance mechanism]
A retractable mechanism 20 is provided on the trailing edge of the door body 10. The retractable mechanism 20 has a manually operable operating member 21 and a retractable member 22 that moves up and down (retracts) in a direction intersecting the opening and closing direction of the door body 10 (the up and down direction in FIG. 1 ) by operating the operating member 21.

1, the operating member 21 is provided facing the front surface of the trailing edge of the door body 11. The retractable member 22 is configured as a rod member (rod-shaped member) made of a hard material such as a metal material, and is disposed inside the trailing edge of the door body 11.
This retractable member 22 is configured to be able to retract between a protruding position (see Figure 3) in which it protrudes outward from the upper end of the door body 10 and a retracted position (see Figure 4) in which it is retracted inward from the upper end of the door body 10 by operating the operating member 21.

Specifically, the retractable mechanism 20 is configured such that when the operating member 21, which is a lever, is rotated downward, the rod-shaped retractable member 22 moves upward and is maintained in a state protruding upward from the door body 11 (see FIG. 3), and when the operating member 21 is rotated upward, the retractable member 22 moves downward and is maintained in a state recessed into the door body 11 (see FIG. 4). Such a retractable mechanism 20 can use, for example, a well-known French drop structure.

In the above embodiment, the operating member 21 is provided facing the surface side of the tail end of the door body 11, but this arrangement is not limited to this example. For example, the operating member 21 may be configured to face the end surface of the tail end of the door body 11.

(Positioning mechanism)
Next, the positioning mechanism 30 that determines the retracted position of the door body 10 will be described.
The positioning mechanism 30 is attached and fixed via an attachment member (not shown) to a frame located above the rear side of the retraction area S. As shown in Fig. 3, the positioning mechanism 30 includes a main body 31 forming a base, a first positioning member 32 provided at one left-right end of the main body 31, and a second positioning member 33 provided on the upper part of the main body 31. The positioning mechanism 30 functions to determine the retraction position of the door body 10 retracted into the retraction area S.

[Main unit]
The main body 31 forms a base that supports the first positioning member 32 and the second positioning member 33, and is formed, for example, from a metal housing. The main body 31 is attached and fixed to a frame located at the upper back side of the retraction area S via an attachment member (not shown) by a fixing means such as a screw.

[First positioning member]
The first positioning member 32 is made of, for example, a hard metal member and is formed in a substantially rectangular flat plate shape. The first positioning member 32 is immovably attached and fixed to the main body 31 by a fixing means such as a screw or by welding so as to protrude and extend in a substantially horizontal direction toward the opening 5 side.

This first positioning member 32 functions to position the door body 10 at a first retracted position where there is still some space left to be pulled. Specifically, as shown in Figures 3 and 5(a), when the retractable member 22 of the retractable mechanism 20 is in the protruding position, when the door body 10 is retracted into the retraction area S, the tip portion 22a of the retractable member 22 protruding outward from the upper end of the door main body 11 abuts against the tip of the first positioning member 32, thereby positioning the door body 10 at the first retracted position where there is still some space left to be pulled. This state constitutes the first fully open state of the door body 10.

[Second Positioning Member]
The second positioning member 33 has a base 33a fixed to the main body 31 and an abutment portion 33b detachably attached to the base 33a. The base 33a is made of, for example, a metal housing, and is immovably fixed to the upper part of the main body 31 by welding or by a fixing means such as a screw. The abutment portion 33b is made of, for example, elastic rubber or synthetic resin, and is detachably attached to the base 33a by a fixing device such as a screw or by various locking means (for example, a fitting means for fitting a protrusion and a recess).

This second positioning member 33 functions to position the door body 10 at the second retracted position where no part is left behind. Specifically, as shown in Figures 4 and 5(b), when the retractable member 22 of the retractable mechanism 20 is located at the retracted position, when the door body 10 is retracted into the retraction area S, the retractable member 22 does not come into contact with the first positioning member 32, so that the door body 10 can be retracted to the second retracted position where no part is left behind.

In this case, the hanging member 13 provided on the door body 10 is positioned in the second retracted position where no part is left behind by inserting the first positioning member 32 through the lower space 13c defined below the upper piece 13b2 of the hanging member 13 and the upper piece 13b2 of the hanging member 13 abutting the abutment part 33b of the second positioning member 33. This state constitutes the second fully open state of the door body 10. The front surface of the second vertical frame 3 constituting the opening 5 covered by the door body 10 in the first retracted position is exposed by retracting the door body 10 to the second retracted position.

(Door stopper)
Next, the door stop member 40 that determines the fully closed position of the door body 10 will be described.
1, the door stop member 40 is attached and fixed to a frame located above the opening 5 on the first vertical frame 2 side via an attachment member (not shown). This door stop member 40 is configured to include a main body 41 forming a base, and a positioning member 42 provided on the upper part of the main body 41. This door stop member 40 functions to determine the position at which the door body 10 is in a fully closed state.

[Main unit]
The main body 41 forms a base that supports the positioning member 42, and is formed, for example, from a metal housing. The main body 41 is attached and fixed to a framework located above the opening 5 on the first vertical frame 2 side via a mounting member (not shown) by a fixing means such as a screw.

[Positioning member]
The positioning member 42 has a base 42a fixed to the main body 41 and an abutment 42b detachably attached to the base 42a. The base 42a is made of, for example, a metal housing, and is immovably fixed to the upper part of the main body 41 by welding or by a fixing means such as a screw. The abutment 42b is made of, for example, elastic rubber or synthetic resin, and is detachably attached to the base 42a by a fixing device such as a screw or by various locking means (for example, a fitting means for fitting a protrusion and a recess).

This positioning member 42 functions to position the door body 10 in the fully closed position. Specifically, as shown in FIG. 1, when the door body 10 is closed, the upper piece 13b2 of the hanging member 13 provided on the door body 10 abuts against the abutment portion 42b of the positioning member 42, thereby positioning the door body 10 in the fully closed position. This state constitutes the fully closed state of the door body 10.

In this embodiment, a door stop member 40 is provided to position the door body 10 in the fully closed position, but this example is not limited to this. For example, if the first vertical frame 2 shown in FIG. 2 is formed longer in the projection direction so that the end of the door body 10 on the door front side abuts against the projection portion of the first vertical frame 2, the door stop member 40 described above may be omitted. In other words, the door body 10 is positioned in the fully closed position by the end of the door front side abutting against the projection portion of the first vertical frame 2.

Next, a mode of use of the sliding door device 1 will be described.
(First aspect)
First, a case where the sliding door device 1 is used in a first mode in which the door body 10 remains unslided will be described.
The first mode is a normal use mode that takes safety into consideration. In the first mode, the retractable member 22 of the retractable mechanism 20 is in a protruding position (see FIG. 3) protruding outward from the upper end of the door body 10. In this case, the retractable mechanism 20 is in a state in which the operating member 21 made of a lever is rotated downward, and the rod-shaped retractable member 22 has moved upward and is maintained in a state in which it protrudes upward from the door body 11.

The door body 10 (see FIG. 1) in the fully closed position can be pulled into the retraction area S by hooking the handle 12 on the door end side of the door body 11 with the fingers and pulling it into the retraction area S, opening the opening 5. In this case, as shown in FIG. 3 and FIG. 5(a), when the door body 10 is pulled into the retraction area S, the tip portion 22a of the retractable member 22 protruding outward from the upper end of the door body 10 abuts against the tip of the first positioning member 32, so that the door body 10 is positioned in the first retracted position where there is still some space to be pulled.

Therefore, when the sliding door device 1 is used in the first mode, even if the door body 10 is pulled into the retraction area S by placing fingers on the handle 12 provided on the back surface of the door body 10, the handle 12 is provided in the remaining part 10a (see Figures 2(b) and 3), so that fingers are prevented from being pinched between the handle 12 and the second vertical frame 3.

(Second Aspect)
Next, a case where the sliding door device 1 is used in a second mode in which the door body 10 is not left behind will be described.
The second mode is used only when necessary, such as when cleaning the area between the door body 10 and the second vertical frame 3, etc., or when it is difficult to enter or exit through the opening 5. In the second mode, the retractable member 22 of the retractable mechanism 20 is in a retracted position (see FIG. 4) retracted inward from the upper end of the door body 10. In this case, the retractable mechanism 20 is in a state in which the operating member 21 made of a lever has been rotated upward, and the rod-shaped retractable member 22 has moved downward and is maintained in a retracted state within the door main body 11.

The door body 10 (see FIG. 1) in the fully closed position can be opened by hooking the handle 12 provided on the door end side of the door main body 11 with the fingers and pulling it into the retraction area S. In this case, as shown in FIG. 4 and FIG. 5 (b), when the door body 10 is retracted into the retraction area S, the retractable member 22 does not abut the first positioning member 32, so that the door body 10 can be retracted to the second retracted position where no part is left behind. Specifically, the hanging member 13 provided on the door body 10 is positioned in the second retracted position where no part is left behind by the upper piece portion 13b2 of the hanging member 13 abutting the abutment portion 33b of the second positioning member 33 with the first positioning member 32 inserted through the lower space 13c defined below the upper piece portion 13b2 of the hanging member 13. The front surface of the second vertical frame 3 that constitutes the opening 5 covered by the door body 10 in the first retracted position is exposed by retracting the door body 10 to the second retracted position.

Therefore, in the second aspect, since the door body 10 is not left behind in the opening 5, the effective opening of the opening 5 is maximized, making it easy for people to enter and exit when using a wheelchair or when loading and unloading large luggage.
In addition, in the second aspect, when the door body 10 is retracted to the second retracted position, the front surface of the second vertical frame 3 constituting the opening 5 covered by the door body 10 positioned in the first retracted position is exposed, making it easy to clean the area between the door body 10 and the second vertical frame 3 and to replace and perform maintenance on functional parts such as the airtight member 3a provided on the second vertical frame 3.

As described above, the sliding door device 1 of the present invention can improve safety and convenience by allowing the door body to be selectively positioned between a state where it is left open and a state where it is not left open depending on the usage state.

Second Embodiment
Next, another embodiment of the sliding door device according to the present invention will be described with reference to the drawings. Fig. 6 is a schematic front view (including a partially enlarged view) showing another example of the sliding door device, and Fig. 7 is a schematic cross-sectional view of the sliding door device shown in Fig. 6 as seen from above.
In addition, since the sliding door device 1' of the second embodiment is a modification of part of the configuration of the positioning mechanism 30 in the sliding door device 1 described above, the modified parts will be mainly described, and the same symbols will be used for the configurations that are the same as those of the sliding door device 1, and duplicate explanations will be omitted.

As shown in FIG. 6, the positioning mechanism 30' of the sliding door device 1' of the second embodiment includes a main body 31 that forms a base, a first positioning member 50 provided at one left-right end of the main body 31, and a second positioning member 33 provided on the upper part of the main body 31. The first positioning member 32 of the positioning mechanism 30 described above is replaced with the first positioning member 50.

The first positioning member 50, like the first positioning member 32 described above, is made of, for example, a hard metal member and is formed into an approximately rectangular flat plate shape, and is immovably attached and fixed by fixing means such as screws or by welding so that it protrudes and extends approximately horizontally toward the opening 5 relative to the main body 31.
7, a long hole 51 is formed as a through hole that is long in the left-right direction (width direction of the opening) of the first positioning member 50. The long hole 51 is formed to a size that allows the tip 22a of the retractable member 22 of the retractable mechanism 20 to be inserted therethrough, and the retractable member 22 that protrudes outward from the upper end of the door body 10 is received (inserted) into the long hole 51, thereby restricting the movement of the door body 10.

The position and left-right length of the long hole 51 are set so that when the movement of the door body 10 is restricted, the handle 12 provided on the door end side of the door body 10 is always positioned within the opening 5. Because this long hole 51 is formed long in the left-right direction, it is easy to align the retractable member 22 when inserting it through the long hole 51.

Next, a mode of use of the sliding door device 1' will be described.
In addition to the first and second modes described above, the sliding door device 1' can be used in a third mode in which the door body 10 is kept open for a certain period of time when, for example, ventilation of the room is required. The third mode will be described below.

(Third aspect)
Since the sliding door device 1' is usually used in the first position in consideration of safety, a case where it is used by switching from the first position to the third position will be described.
In the first mode, when the door body 10 of the sliding door device 1' is retracted into the retraction area S, the retractable member 22 protruding outward from the upper end of the door body 10 abuts against the first positioning member 50, so that the door body 10 is positioned at a first retracted position where there is some remaining space. From this state, the operating member 21 of the retraction mechanism 20 is operated to position the retractable member 22 at a retracted position retracted inward from the upper end of the door body 10.

Next, the door body 10 is moved to a position where the retractable member 22 can be inserted into the long hole 51 formed in the first positioning member 50. After that, the operating member 21 of the retractable mechanism 20 is operated to protrude the retractable member 22 outward from the upper end of the door body 10 and insert it into the long hole 51 of the first positioning member 50. In this state, the movement of the door body 10 is restricted. In other words, the movement of the door body 10 is restricted in the left-retracted state because the tip portion 22a of the retractable member 22 can only move within the range of the left-right length of the long hole 51.

The sliding door device 1' may also be used by switching from the second state to the third state. In that case, the door body 10, which is positioned in the second retracted position where no part is left behind, is moved to a position where the retractable member 22 can be inserted into the long hole 51 formed in the first positioning member 50. Then, the operating member 21 of the retractable mechanism 20 is operated to cause the retractable member 22 to protrude outward from the upper end of the door body 10 and to be inserted into the long hole 51 of the first positioning member 50.

As explained above, when the sliding door device 1' is used in the third mode, the door body 10 can be kept open for a certain period of time without being opened or closed, so that ventilation in the room can be reliably performed.

The present invention is not limited to the specific configurations of the above-described embodiments, and may be modified as appropriate without departing from the spirit and scope of the present invention.

In the above embodiment, the first positioning members 32, 50 are fixed immovably to the main body 31, but the present invention is not limited to such a configuration. For example, the first positioning members 32, 50 may be arranged to be position adjustable in the left-right direction (width direction of the opening) relative to the main body 31, thereby making the first retracted position adjustable (the width of the remaining portion 10a adjustable). In this case, for example, a plurality of through holes (not shown) may be formed adjacent to each other in the left-right direction (longitudinal direction of the first positioning members 32, 50) at the end of the first positioning members 32, 50 on the main body 31 side, and these through holes may be selected and attached to the main body 31 by a fixing means such as a screw.

In the above embodiment, the second positioning member 33 is provided on the main body 31 of the positioning mechanism 30, 30' and is configured to position the door body 10 at the second retracted position by abutting against the hanging member 13 provided at the upper end of the door body 10, but is not limited to such a configuration. For example, the second positioning member may be provided on the wall W (Wb) at the rear side of the retraction area S, and the end face of the door body 10 on the door tail side may be positioned by abutting against this second positioning member.

<Summary>
As described above, the above embodiments disclose the following inventions.
(1)
a retraction region defined on a front side of the wall portion and into which the door body can be retracted; a retraction mechanism provided on the door body and having a retractable member capable of retracting between a protruding position protruding outward from an upper end of the door body and a retracted position retracted inward from an upper end of the door body; and a positioning mechanism having a first positioning member which determines a retracted position of the door body in the retraction region, wherein when the door body is retracted into the retraction region, if the retraction member is located at the protruding position, the retraction member abuts against the first positioning member, thereby positioning the door body at a first retracted position having a portion of the door body to be left unretracted, and when the retraction member is located at the retracted position, the retraction member is configured to be retracted to a second retracted position having no portion of the door body to be left unretracted, without abutting against the first positioning member.
(2)
The sliding door device described in (1) above, characterized in that the front surface of the vertical frame constituting the opening covered by the door body located in the first retracted position can be exposed by retracting the door body to the second retracted position.
(3)
The sliding door device described in (2) above, characterized in that the positioning mechanism has a second positioning member, and when the door body is retracted to the second retracted position, it abuts against the second positioning member, thereby being positioned at the second retracted position.
(4)
The sliding door device described in (3) above, characterized in that the second positioning member is configured to position the door body at the second retracted position by abutting against a functional component provided at the upper end of the door body.
(5)
The sliding door device described in (3) or (4) above, wherein the positioning mechanism includes a base supporting the first positioning member and the second positioning member, the first positioning member is provided so as to be capable of adjusting its position in the width direction relative to the base, and the width of the remaining portion of the door body is configured to be adjustable.
(5)
The sliding door device described in any one of (1) to (4) above, characterized in that the retractable mechanism has an operating unit for causing the retractable member to move in and out between the protruding position and the retracted position, and the operating unit is disposed on the front surface of the door body on the door end side.
(6)
The sliding door device described in any one of (1) to (4) above, characterized in that the retractable mechanism has an operating unit for causing the retractable member to move between the protruding position and the retracted position, and the operating unit is disposed on the end face of the door body on the door trailing side.

1: Sliding door device 2: First vertical frame 3: Second vertical frame (vertical frame)
4: Upper frame 5: Opening 10: Door body 10a: Remaining portion of door body 13: Hanging member (functional part)
20: retractable mechanism 21: operation member 22: retractable member 30, 30': positioning mechanism 31: main body (base)
32, 50: First positioning member 33: Second positioning member W: Wall portion S: Retraction region

Claims (7)

A door body that is movable in a width direction of an opening formed in a wall portion;
A retractable area is defined on the front side of the wall portion, and the door body can be retracted.
a retraction mechanism provided on the door body and having a retractable member that can retract between a protruding position protruding outward from an upper end portion of the door body and a retracted position retracted inward from the upper end portion of the door body;
a positioning mechanism having a first positioning member that defines a retracted position of the door body in the retraction area;
When the door body is retracted into the retraction area,
When the retractable member is located at the protruding position, the retractable member abuts against the first positioning member, thereby being positioned at a first retracted position having a portion of the door body left unretracted,
a sliding door device characterized in that, when the retractable member is located in the retracted position, the retractable member is configured to be retracted to a second retracted position in which no portion of the door body is left unretracted without contacting the first positioning member. The sliding door device according to claim 1, characterized in that a front surface of a vertical frame constituting the opening covered by the door body located in the first retracted position can be exposed by retracting the door body to the second retracted position. The positioning mechanism includes a second positioning member,
The sliding door device according to claim 2, wherein the door body is positioned at the second retracted position by abutting against the second positioning member when retracted to the second retracted position. The sliding door device according to claim 3, characterized in that the second positioning member is configured to position the door body at the second retracted position by abutting against a functional component provided at an upper end of the door body. The sliding door device according to claim 3 or 4, characterized in that the positioning mechanism includes a base supporting the first positioning member and the second positioning member, the first positioning member is provided so as to be adjustable in its position in the width direction relative to the base, and the width of the remaining portion of the door body is adjustable. The sliding door device according to any one of claims 1 to 4, characterized in that the retractable mechanism has an operating unit for causing the retractable member to move between the protruding position and the retracted position, and the operating unit is disposed on a front surface of the door body on the door end side. The sliding door device according to any one of claims 1 to 4, characterized in that the retractable mechanism has an operating unit for causing the retractable member to move between the protruding position and the retracted position, the operating unit being disposed on an end face of the door body on the door trailing side.

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