JPH0474510B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a sliding door device having a structure in which a sliding door moves in the lateral and front-back directions when opening and closing, and particularly relates to a structure for preventing swinging of the sliding door. The sliding door mentioned above also includes a partition.

[Prior Art] Conventionally, a sliding door steady rest structure of this type of sliding door device is described in the following publication.

The steady rest structure disclosed in Japanese Patent Application Laid-open No. 52-570 has a linear lower rail on the lower surface of the frontage opening, and a movable rail is movably provided within this lower rail using pins and long holes. The cam and lever device are installed, and the pin connected to the bottom of the left sliding door fits into the guide groove of the cam, and the pin connected to the bottom of the right sliding door can slide freely in the guide groove parallel to the sliding door. It is made by fitting together.

[Problems to be Solved by the Invention] However, in the steady rest structure disclosed in JP-A No. 52-570, a movable rail is slidably provided within the lower rail, and the movable rail is provided with a cam and a lever device. The device has a complicated and large-scale guide structure, which not only cannot be easily put into practical use, but also makes assembly work extremely difficult.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional situation, an object of the present invention is to provide a sliding door device that can maximize the frontage while having a simplified steady rest structure.

[Means for Solving the Problems] To achieve the above object, the present invention provides a steady rest runner that protrudes from the outside of the sliding door between the substantially central portions in the length direction of either the upper or lower lateral end surface. and a steady rest guide member that guides the steady rest runner when the sliding door is opened and closed and is provided approximately in the longitudinal center of either the upper or lower side of the frontage opening, and the function of the steady rest runner. It is characterized by a structure including a door stop that is fixed to the lateral end surface of the sliding door located on the mating side and that comes into contact with the steady rest runner of the other sliding door.

[Function] Since the steady rest guide member is located approximately in the longitudinal center of the frontage opening, one steady rest runner protrudes from the outside of the sliding door between the longitudinal center of the side end face. However, the steady rest guide member allows the sliding door to be slid in the wrong direction when the door is opened. At this time, the steady rest runner of the other sliding door comes into contact with the door stop on the matching side, thereby stopping the sliding door.

[Example] Hereinafter, a description will be given based on an example in which a pair of left and right sliding doors have a hanging structure.

This sliding door device is equipped with a pair of left and right sliding doors 1 and 2 as shown in FIGS. Member 3 is fixed. A curtain plate C may be attached to the front of this guide member 3 as shown in the fourth figure. Then, the matching sides 1a, 2 of the upper end surfaces 1c, 2c as the respective lateral end surfaces of the sliding doors 1, 2
Suspension runners 4 and 5, which are slidably inserted into the guide member 3, are erected on the outer sides 1b and 2b. Further, a steady rest guide member 6 is fixed to a device fixing portion B that constitutes a threshold or a base plate for the sliding doors 1 and 2. A steady rest runner 7, which is movably inserted into the guide member 6, protrudes between the outer sides 1b and 2b of the lower end surfaces 1d and 2d as the respective lateral end surfaces of the sliding doors 1 and 2 and the approximately central portion in the length direction. be done. A door stop 8 is fixed to the lower end surfaces 1d, 2d of the sliding doors 1, 2 located on the matching sides 1a, 2a from each runner 7.

On the other hand, the basic structure of the guide member 3 is shown in Fig. 2a.
The two guides G1 and G2 as shown are symmetrically combined laterally as shown in FIG. That is,
In the guide G1 of the left sliding door 1, retraction guide grooves 11 and 12 for guiding the sliding door 1 obliquely forward are horizontally connected to the substantially central part of the horizontal guide groove 10 and the left end thereof. An adjustment guide groove 13 is connected to the end of the left end retraction guide groove 12 in a horizontally elongated manner toward the left outer side. Also, the guide G2 of the right sliding door 2 is the horizontal guide groove 1.
Retraction guide grooves 15 and 16 for guiding the sliding door 2 obliquely forward are communicated with the substantially center portion and right end of the sliding door 4 . An adjustment guide groove 17 is connected to the end of the right-hand retraction guide groove 16 in a horizontally elongated manner toward the outer right side. The two guides G1 and G2 are overlapped as shown in FIG. Thus, the guide member 3 is constructed. From then on,
The code 10 is used for the horizontal guide groove.

By the way, as shown in the third diagram, the guide member 3 includes a central member 18, left and right intermediate members 19 and 20 disposed on both sides of the central member 18, and disposed on the outside of each of these intermediate members 19 and 20. It is divided into left and right terminal members 21 and 22. Each of the members 18 to 22 is arranged horizontally in a row. The horizontal guide groove 10 is formed by the left and right intermediate members 1
9, 20 and the central member 18. The retraction guide grooves 11 and 15 located in the central part are connected to the central member 18.
It is formed into a roughly eight-figure shape. Retraction guide grooves 12 and 16 located at both ends are formed in the terminal members 21 and 22.

Now, the runners 4 and 5 each include a short cylindrical base 40. Lower end surface 40 of this base 40
A mounting bolt 41 is vertically installed in the center so as to be freely rotatable in the circumferential direction. This mounting bolt 41 and base 4
0, a sleeve 42 is interposed between the two. By attaching the mounting bolts 41 to the local parts of the upper end surfaces 1c and 2c of the sliding doors 1 and 2 via the fixture E,
The base portion 40 is spaced upward from the upper end surfaces 1c and 2c of the sliding doors 1 and 2. Further, a plurality of balls 43, 43, . . . are rotatably attached to the lower end surface 40a of the base portion 40 located around the mounting bolt 41. A portion of the spherical surface of each ball 43, 43... protrudes from the lower end surface 40a.

By the way, in the center of the top end surface of the base 40 of the runner 4, there is a cylindrical first part constituting a thin and long guide element.
A guide pin 44 protrudes, and a cylindrical second guide pin 45 constituting a thick and short guide element protrudes from the center of the top end surface of the base of the runner 5. 1st
The guide pin 44 is thinner and longer than the second guide pin 45. Since the outer diameter of the second guide pin 45 is approximately the same as the outer diameter of the base portion 40, the boundary between the two is shown divided by a dashed line l.

Now, in the central member 18, a horizontal passage groove 180 is formed in an inverted U shape, linearly communicating with the horizontal guide groove 10 and through which the base portions 40 of the runners 4 and 5 pass.
Runners 4 and 5 are provided on the same side of this horizontal passage groove 180.
two vertical passage grooves 181 for passing the base 40 of the
182 is formed in an inverted U-shape and approximately eight-shape in plan view. The horizontal passage groove 180 and the vertical passage groove 181,1
A part of the opening 82 is covered with rail members 183, 184, and the horizontal passage groove 180 and the vertical passage groove 181, 182 are connected by the rail members 183, 184.
An opening 185 is provided at the center of the width of the opening, through which the sleeve 42 attached to the root portions of the runners 4 and 5 passes. The horizontal passage groove 180 and the right vertical passage groove 1
As shown in FIG. 6, the retraction guide groove 15 for guiding the first guide pin 44 is provided on the top surface of the groove 82 in an inverted U shape. This retraction guide groove 15 is the right passage groove 18.
2, and opens from the end of the right passage groove 182 toward the left intermediate member 19. The opening width of this retraction guide groove 15 is slightly larger than the outer diameter of the first guide pin 44. In addition, the horizontal passage groove 18
A retraction guide groove 11 for guiding the second guide pin 45 is provided on the top surface of the left vertical passage groove 181 in an inverted U shape. This retraction guide groove 11 is the left vertical passage groove 1.
81 and opens from the end of the left vertical passage groove 181 toward the right intermediate member 20. The opening width of this retraction guide groove 11 is slightly larger than the outer diameter of the second guide pin 45, and the left vertical passage groove 18
Since the opening width is approximately the same as that of No. 1, the boundary between the two is shown in FIG. 6 by a dashed line l. The depth of this retraction guide groove 11 is deeper than the length of the second guide pin 45 but shallower than the length of the first guide pin 44. That is, this retraction guide groove 11 is
The groove width is wider and the groove depth is shallower than the retraction guide groove 15 for the guide pin 44. By the intersection of both the retraction guide grooves 11 and 15, the guide surface 11a of the second guide pin 45 and the first guide pin 44
The guiding surface 15a is formed in an arc shape with vertical steps.

Further, as shown in FIGS. 5 and 6, the central member 18 includes a base 186 in which a horizontal passage groove 180, vertical passage grooves 181, 182, and retraction guide grooves 11, 15 are formed. The base 186 is made of synthetic resin, and the front and rear opposing end surfaces 11b and 15b at the open ends of the retraction guide grooves 11 and 15 communicating with the intermediate members 19 and 20 widen from the center of the base 186 to the left and right, respectively. It has a tapered surface. Each intermediate member 19, which will be described later,
A pair of studs 187, 187 for fitting the twenty connecting shoulders 206 are protruded. Horizontal passage groove 18 located at the bottom of the tapered surfaces 11b and 15b
Each of the front and rear opposing end surfaces 180a at the opening end of No. 0 is a tapered surface along the tapered surfaces 11b and 15b. In addition, the rail members 183, 184
is made of a plate-shaped metal material fixed to the base 186. Then, the horizontal passage groove 180 and the vertical passage groove 18
Rail members 183, 18 protruding from 1,182
Balls 43, 43 of runners 4, 5 on the top surface of 4...
...is rolled.

Since the intermediate members 19 and 20 are congruent, the structure of one intermediate member 20 will be described in detail,
A description of the other intermediate member 19 will be omitted. The intermediate member 20 is an elongated member having a substantially inverted U-shaped cross section in the front-rear direction and forming a lateral opening 200 that communicates with the lateral guide groove 10 and the lower part of the lateral guide groove 10 and passes through the sleeve 42 at the base of the runners 4 and 5. It's getting old. That is, the protruding pieces 201, 201 that protrude horizontally before and after the lower end of the intermediate member 20 become the rails of the runners 4, 5, and the protruding pieces 202, 202 protrude horizontally before and after the upper middle of the rails 201, 201. A lateral guide groove 10 is formed. This horizontal guide groove 10
The inner surface of the top piece 203 facing toward the
An escape passage groove 204 through which the guide pins 44 and 45 pass is provided in an inverted U shape. This escape passage groove 20
Concave grooves 205, 205 are formed extending laterally on the outer surface of the top piece 203 located at the front and rear upper portions of 4, and the studs 187, 187 are fitted between the pair of studs 187, 187 between these grooves 205, 205. Connecting shoulders 206, 206 are formed. Escape passage groove 20
A plurality of mounting holes 20 are provided in the top piece 203 where No. 4 is located.
7, 207... are penetrated with the hole axis facing up and down. These attachment holes 207, 207, . . . are spaced apart from each other in the longitudinal direction of the intermediate member 20.

Since the terminal members 21 and 22 are symmetrical, the structure of the right terminal member 22 will be explained in detail.
A detailed description of the left end member 21 will be omitted. The right end member 22 includes a base portion 220 in which a right end retraction guide groove 16 and a right adjustment guide groove 17 are provided, as shown in the fifth figure. The right end retraction guide groove 16 and the right adjustment guide groove 17 are slightly larger openings through which the sleeves 42 of the runners 4 and 5 pass. This base 220 is formed in the shape of a metal plate, and the front and rear edges of the base 220 are the front and rear walls 2 raised upward.
21. A plurality of mounting struts 222, 222, . Each support column 222 has a cylindrical shape, and a mounting hole 223 is bored in each support column 222 and the base 220 with the hole axis directed upward and downward. The circumferential surface of each attachment hole 223 located on the lower surface of the base 220 is a countersunk hole. Further, each front and rear end surface 16a at the open end of the right end retraction guide groove 16 located on the intermediate member 20 side
is a tapered surface that smoothly widens from the terminal side of the right end retraction guide groove 16 toward the open end side.
A retraction guide 224 is fixed to the upper surface of the base 220 around the tapered surface 16a. This retraction guide 224 is made of synthetic resin and is formed into a gate shape that straddles the right end retraction guide groove 16.
The base portions 40 of the runners 4 and 5 and the first and second guide pins 44 and 45 pass through the inside of the runner 24a. Concave groove 224 located on the tapered surface 16a side
The end faces of each of the front and rear facing portions 224b in a are tapered surfaces that expand in the same direction as the tapered surface 16a. A pair of studs 225 into which the connecting shoulders 206 of the intermediate members 19 and 20 are fitted are protruded from the end surface of the retraction guide 224 located above the tapered surface 224b.

On the other hand, the guide member 6 is fixed in a recess b formed around the front end of the lower surface of the device fixing part B, as shown in the third figure. The guide member 6 includes a horizontal guide groove 60 that constitutes a horizontal guide, and retraction guide grooves 61 and 62 that constitute vertical guides that communicate with both left and right sides of this horizontal guide groove 60. The lateral guide groove 60 is formed substantially linearly in the left-right direction. The retraction guide grooves 61 and 62 are formed obliquely toward the rear of the horizontal guide groove 60. In other words, the horizontal guide groove 6
0 and the retraction guide grooves 61 and 62 have a predetermined outline on the interlocking locus of the runner 7 when the sliding doors 1 and 2 are opened and closed.

Further, the horizontal guide groove 60 is formed in the central member 63. The central member 63 is formed into an elongated inverted U-shape when viewed from the front and back, and a horizontal guide groove 60 is defined by an opening on the lower surface of the central member 63. A membrane piece 630 is provided on the front and rear edges of the lower surface where the horizontal guide groove 60 is located.
630 is rectangular and horizontally protruded. The front and rear edges on the outer side of the upper surface of the central member 63 have a front and rear cross-sectional view L.
The letter-shaped fitting pieces 631, 631 are protruded facing each other.

The retraction guide grooves 61 and 62 are connected to the terminal member 64,
65. Since both end members 64 and 65 are symmetrical, the structure of the left end member 64 will be described in detail, and the detailed description of the right end member 65 will be omitted. The left end member 64 includes a flat base 640 in which a retraction guide groove 61 is carved, and the base 64
There are raised front and rear walls 641, 6 on the front and rear edges of 0.
41. The base 6 is located around the open end of the retraction guide groove 61 that communicates with the horizontal guide groove 60.
A connection support part 642 is fixed to the upper surface of 40.
This connection support portion 642 is made of synthetic resin and has a gate shape. A pair of front and rear studs 643, 6 are provided on the end surface of the connection support portion 642 located on the side of the horizontal guide groove 60.
43 is highlighted. This pair of studs 643,
643 are inserted into fitting grooves 633, 633 formed between the fitting piece 631 and the front and rear walls 632 of the central member 63, respectively. By inserting this pair of studs 643 into the fitting grooves 633, both the end members 64, 65 are attached to the center member 633.
3 are connected in a horizontal line on both sides. The horizontal guide groove 60 and the retraction guide grooves 61 and 62 are opened on the lower surface side of the device fixing part B (see FIG. 3).

The steady rest runner 7 is movably engaged with the guide member 6. As shown in the third figure, the runner 7 has a cylindrical shape that is inserted into the horizontal guide groove 60 and the retraction guide grooves 61 and 62 of the guide member 6. The runner 7 is rotatably fixed via a support shaft to a support portion 70 that projects horizontally to the rear of the lower ends of the sliding doors 1 and 2. This support part 70 is detachably attached to a mounting part 71 fixed to the lower end of the sliding doors 1 and 2. The outer diameter of the runner 7 is slightly smaller than the opening width of the horizontal guide groove 60 and the retraction guide grooves 61 and 62.

By the way, as shown in FIG. 2b, the mounting interval H1 between the runners 4 and 5 of the sliding door 1 is larger than the interval h1 between both ends of the center left retraction guide groove 11 and the left end retraction guide groove 12, and Guide groove 11
This is smaller than the distance d1 between both ends of the left adjustment guide groove 13. When the runner 5 is located at the end of the left center retraction guide groove 11, the runner 4
is located in the middle of the left adjustment guide groove 13, and a gap e1 exists between the runner 4 and the end of the left adjustment guide groove 13. Furthermore, the mounting interval H2 between the runners 4 and 5 of the sliding door 2 is larger than the interval h2 between both ends of the right central retracting guide groove 15 and the right end retracting guide groove 16, and the right central retracting guide groove 15 and the right azimuth guide groove 17 The distance between both terminals d
It is smaller than 2. When the runner 4 is located at the end of the right center retraction guide groove 15, the runner 5 is located between the right adjustment guide groove 17, and the runner 5 and the right adjustment guide groove 17 are located between the runner 5 and the right adjustment guide groove 17.
A gap e2 exists between the terminal and the terminal.

Next, the case of opening the closed sliding doors 1 and 2 in the embodiment configured as above will be described with reference to FIG. 8. For example, in order to open the left sliding door 1 in FIG. 1A, the user operates a handle (not shown) provided in a recessed part of the sliding door 1 to pull the sliding door 1 forward. As a result, the second guide pin 45 located on the mating side of the sliding door 1 moves to the right lateral guide groove 10 while being guided by the left central retraction guide groove 11. Also, sliding door 1
The mounting bolts 41 of the runners 4 located on the outer sides 1b and 2b move from the left adjustment guide groove 13 to the lateral guide groove 18 while being guided by the left end guide groove 12. When moving from this left end retraction guide groove 12 to the horizontal guide groove 10, the base 4 of the runner 4
0 is positioned within the left lateral guide groove 10 and guided.
After the sliding door 1 starts moving, the second runner 5
When the guide pin 45 is guided by the left center retraction guide groove 11 and passes through the intersection, it will be in the state shown in FIG. After the second guide pin 45 moves from the guide surface 11a to the horizontal passage groove 180, the outer diameter of the second guide pin 45 is larger than the opening width of the right center retraction guide groove 15, so that state, and the second guide pin 4
The runner 5 is prevented from entering the right center retraction guide groove 15 by the barrier effect of the stepped barrier 11c.
travels straight through the lateral guide groove 10 from the lateral passage groove 180 (see FIG. 9c). Further, when the runner 4 moves from the left intermediate member 19 to the central member 18 and the base 40 of the runner 4 is guided from the left lateral guide groove 10 to the lateral passage groove 180, the first guide pin 4 of the runner 4
4 is in the state shown in FIG. 9d when the right center retraction guide groove 15
Go straight to the intersection of , and the sliding door 1 will be moved to the state shown in FIG. 8b.

On the other hand, when the sliding door 1 is opened, the runner 7 provided at the lower end of the sliding door 1 is guided from the vertical guide 61 to the horizontal guide 60 as the sliding door 1 moves.
The support portion 70 of the runner 7 passes below the lower end surface of the stationary sliding door 2. Then, the side end of the support part 70 of the sliding door 1 comes into contact with the doorstop 8 of the sliding door 2,
The opening operation of the sliding door 1 is completed.

Now, in order to close the sliding door 1 from the state shown in FIG. 8B to the state shown in FIG. At this time, when the runner 4 of the sliding door 1 located at the front in the door closing direction passes through the intersection, the first guide pin 44 moves into the left center retraction guide groove 1.
Since the first guide pin 44 is guided by the right central retraction guide groove 15 which is narrower and deeper than the first guide pin 44, the first guide pin 44 is prevented from entering at the intersection of the left central retraction guide groove 11 and is guided from the horizontal passage groove 180 to the horizontal guide groove. Moved to 10. The second guide pin 45 of the runner 5 on the mating side of the sliding door 1 is guided from the right lateral guide groove 10 to the left central retraction guide groove 11. Also runner 4
is also guided from the horizontal guide groove 10 through the left end retraction guide groove 12 to the left adjustment guide groove 13 (see FIG. 9e), and the sliding door 1 becomes flush with the sliding door 2.
The closing operation of the sliding door 1 is completed.

According to the embodiment, the steady rest runner 7 is positioned slightly outward 1 from the longitudinal center of the sliding doors 1 and 2.
Since the runners are located at points b and 2b and protrude, the movement of the runners as the sliding doors 1 and 2 are opened and closed is in section D in FIG. And runner 7
will move approximately at the center in the lateral direction of the device fixing part B, so while shortening the length of the horizontal guide groove 60, the outside 1b of one sliding door 1 in the open state will move approximately at the center of the device fixing part B in the lateral direction. The frontage when the door is opened is maximized (see Fig. 8b).

According to the embodiment, the guide member 6 is divided into a central member 63 and left and right end members 64, 65,
These members 63 to 65 form a pair of studs 643
Since it is installed by engaging with the fitting groove 633, the lateral guide groove 60 and the retraction guide grooves 61, 62 are accurately connected. Moreover, since the central member 63 has a shape that allows mass production of elongated objects by drawing or extrusion molding, elongated objects can be cut into predetermined lengths for use. Furthermore, both terminal members 64,
Reference numeral 65 stands up the front and rear walls 641 based on the retraction guide grooves 61 and 62, and the front and rear walls 641
By fixing the connection support part 642 to the rising side of the symmetrical left and right end members 64 and 65 can be easily obtained.

(a) The guide member 6 may be arranged on the upper surface of the device fixing part B as shown in FIG. 10. In this case, the runner 7 is projected below the support part 70. According to this modification, the work of attaching the guide member 6 to the device fixing part B is easy. Moreover, sliding doors 1 and 2
When is a partition, a guide member 6 can be provided on the floor surface of the device fixing part B.

(b) The runner 7B may be configured as shown in Figure 11. This runner 7B has a disc shape attached to the lower end of the support shaft 73, and the runner 7B
A plurality of balls 74, 74... are provided on the lower end surface of B.
are spaced apart in the circumferential direction. The spherical position of each ball 74 protrudes from the lower end surface of the runner 7B. Therefore, balls 74, 74...
The protruding spherical surfaces of the runners 7B roll on the guide grooves 6B, and the runner 7B runs while being guided by the guide grooves 6B.

(c) Although not shown, the runner 7 may be constructed by rotatably attaching a roller to one side of the support portion.

According to the modified examples (b) and (c) above, the sliding doors 1 and 2 can have a floor running type structure.

(d) When the sliding doors 1 and 2 are floor running type, the guide member 3 may be placed on the device fixing part B, and the guide member 6 may be placed on the device fixing part A, as shown in the twelfth figure.

(e) When sliding the sliding doors 1 and 2, it is also possible to open one sliding door 1 after the other stationary sliding door 2. This case can be easily implemented by configuring the guide members 3 and 6 in a general shape inverted in the front-rear direction as shown in FIG. 13.

[Effects of the Invention] As explained above, the present invention has the following effects.

(a) Since the steady rest runner is protruded from the outside of either the upper or lower horizontal end surface of the sliding door between the approximately central part in the length direction, the runner of the sliding door that opens is stationary in a sliding door device with a double-sliding structure. To achieve a simplified steady rest structure that uses one guide for each other without colliding with the runner of a sliding door.

(b) By attaching the runner to the approximate center of the lateral end face, the length of the guide member can be shortened and the opening width can be maximized.

(c) Since there is only one runner on the steady rest side, there is no need to adjust the parallel movement of the runner with respect to the guide member, and the assembly work is easy.

(d) By providing the door stop closer to the door stop than the steady rest runner, it was possible to stop the steady rest runner in contact with the other door stop when the sliding doors were closed.

In particular, the doorstop structure can be made of one runner on either the upper or lower end face and a doorstop on the matching side adjacent to the runner, without impairing the aesthetic appearance.

[Brief explanation of the drawing]

Fig. 1 is a schematic front view of a sliding door device according to the present invention, Fig. 2 a and b are plan views showing the outline of the guide of the sliding door device, and Fig. 3 is an exploded view of the sliding door device. 4 is a sectional view taken along the line -- in FIG. 1, FIG. 5 is an exploded perspective view of the right side of the hanging guide member of the sliding door device, and FIG.
The figure is an exploded perspective view of the central member of the hanging guide member, Figure 7 is an exploded perspective view of the steady rest guide member, and Figure 8 is a schematic plan view for explaining the operation of the sliding door device. In this case, a indicates a closed door state, and b indicates an open door state. FIG. 9 is a sectional view of FIG. 8, where a is a sectional view taken along line a-a and b is a
A sectional view taken along the line, c shows a sectional view taken along the line CC, and d shows a sectional view taken along the dd line. 10 to 13 are views showing each modification of the present invention, in which FIG. 10 is a sectional view corresponding to FIG. 4, FIG. 11 is a side view, and FIGS. 12 and 13 are FIG. 1, 2...Sliding door, 1a, 2a...Meeting side,
1b, 2b...Outside, 1c, 2c...Top end surface, 1
d, 2d... lower end surface, 3, 6... guide member,
4, 5... Suspension runner, 7... Steady rest runner, 8... Door stop, 10, 14, 60... Horizontal guide groove, 11, 12, 15, 16, 61, 62
...Retraction guide groove.

Claims (1)

[Scope of Claims] 1. Straight horizontal guide grooves 10, 14, 60 in the guide members 3, 6 provided above and below the frontage opening, and a retraction guide groove 1 that obliquely intersects with the horizontal direction.
1, 12, 15, 16, 61, 62,
These guide members 3, 6 guide the guided members 4, 5, 7 provided on the upper and lower end surfaces 1c, 2c, 1d, 2d of the sliding doors 1, 2 so that the sliding doors 1, 2 are flush with each other when closed. In a sliding door device that is slid apart when the door is opened, one steady rest protruding from the outside of the sliding doors 1 and 2 between approximately the longitudinal center of either the upper or lower horizontal end surface 1c, 2c, 1d, or 2d. runner 7
And this steady rest runner 7 is attached to the sliding doors 1 and 2.
one steady rest guide member 6, which guides the opening and closing of the frontage opening, and which is provided approximately in the longitudinal center of either the upper or lower side of the frontage opening, and the sliding door 1, which is located on the matching side of the steady rest runner 7; 2, the lateral end surface 1c,
2c, 1d, and 2d, and a door stop 8 that abuts against the steady rest runner 7 of the other sliding door 1, 2.