JP2003129735A - Double sliding door apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double sliding door apparatus which aligns both a first and a second doors 1, 2 with each other when they are closed, simplifies its door hanging structure, and facilitates door hanging work. SOLUTION: In this double sliding door apparatus, the first door 1 is hung by an upper guide rail 4 in a laterally movable manner, which guide rail 4 bears a lateral moving body 10 in a laterally movable manner. The second door 2 is hung from the lateral moving body 10 via parallel links 11, 12 in a manner being displaceable in parallel inward and outward, and energized inward by springs 11b to 14b. The apparatus comprises a second door thrusting means 39, for displacing the second door 2 outside the first door 1 against the energizing force of the springs when both the first and the second doors 1, 2 relatively approach each other form a closed position in which both the doors are abutted on each other. In the double sliding door apparatus, at least the upper guide rail 4 assuming a position that hangs the second door 2 can be supported by a pair of right and left rail bearing means 53, 52.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door device used for opening and closing an opening of a storage space.

[0002]

2. Description of the Related Art As a sliding door device of this type, for example, as described in Japanese Patent No. 3080349,
When the opening is closed, the two doors face each other to form a continuous flat surface, and when either one of the two doors is opened to open the opening, one of the two doors is opened. There is known a sliding door device in which the door moves in parallel to the outside of the other door and the two doors overlap each other inward and outward.

A sliding door device of this type includes a first door suspended laterally from an upper guide rail and a pair of parallel moving bodies supported laterally on the upper guide rail in a pair of at least moving directions. A second door suspended parallelly to the outside of the movement path of the first door via a link,
When the spring for urging the second door toward the movement path of the first door and the first and second doors move relatively toward each other from the closed state in which they face each other, they resist the urging force of the spring. The second door pushing means for moving the second door to the outside of the first door is provided.

[0004]

In the conventional sliding door device as described in the above publication, however, the sliding door device is first attached to the lower side of the top plate of the opening that is opened and closed by the first and second doors. The structure for suspending the first door with respect to the upper guide rail is relatively simple because it is sufficient to fit the roller pivotally supported on the upper end of the first door to the upper guide rail. However, for a second door that must be suspended via a parallel link to a lateral moving body that is supported laterally movable on the upper guide rail, the lateral moving body can be laterally moved only on the upper guide rail. Since the lateral movement body and the second door are connected to each other by the parallel link, the second door cannot be suspended from the upper guide rail because it needs to be fitted inside as much as possible. Therefore, not only is the structure for suspending the second door complicated, such as the detachable structure of the parallel link and the second door, but also the task of suspending the second door is troublesome. there were.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a sliding door device capable of solving the above-mentioned conventional problems, and the means will be referred to in the embodiments described later. Indicated by the reference numerals, at least a pair of moving directions are parallel to the first door 1 suspended laterally from the upper guide rail 4 and the lateral moving body 10 supported laterally to the upper guide rail 4. Attach the second door 2 that is movably movably parallel to the outside of the movement path of the first door 1 via the links 11 and 12, and the second door 2 to the movement path side of the first door 1. Urging springs (torsion coil springs 11b to 14b),
When the first and second doors 1 and 2 relatively move toward each other from the closed state in which they face each other, the spring (torsion coil spring 1)
1b-14b) second door pushing means 39 for moving the second door 2 to the outside of the first door 1 against the biasing force of the first door 1
Is a sliding door device including:
Rail support means 52, 5 for detachably supporting both ends of the upper guide rail 4 on both sides of the opening 3 opened and closed by 2.
3 is provided, and at least the second door 2 is connected to the lateral moving body 10
And the upper guide rail 4 in a state of being suspended via the parallel links 11 and 12 and the rail supporting means 52 and 53.
It is constructed so that it can be installed.

In carrying out the device of the present invention having the above-mentioned structure, the upper guide rail 4 is provided with the top plate 2 of the opening 3.
It is possible to fit the upper side portion into the lower open groove 25 formed in No. 4 so as to be vertically fittable. Further, the rail supporting means 52, 53 are fixed to both sides of the opening 3 and have a fixing member 55 having a temporary receiving portion 62 for temporarily receiving the upper guide rail 4 at a lower position before fitting into the groove 25. And an attaching / detaching member 57 which can be attached to and detached from the fixing member 55 in the front-rear direction and which supports the upper guide rail 4 in the upper position fitted in the groove 25 in an attached state.

Further, in the second door pushing means 39, a cam driven roller 44 attached to the rear end side of the second door 2 which does not abut the first door 1 and the first and second double doors. A fixed cam 45 adjacent to the cam driven roller 44 in a state where the opening 3 is closed by 1 and 2 is provided, and the fixed cam 45 is the detachable member 57 of the rail support means 53.
Can be set up in.

A lower guide rail 5 for preventing the lower ends of the first and second doors 1 and 2 from swinging can be used together. Specifically, the lower guide rail 5 is a groove-shaped rail that is open on the lower side, and the lower end portion of the first door 1 has vertical shaft rollers 8a and 9a that are fitted into the lower guide rail 5 from below. Is provided at the lower end of the second door 2, and the same lower parallel links 13 and 14 as the parallel links 11 and 12 for suspending the second door 2 are provided. Vertical shaft rollers 15 and 16 which are fitted to the lower guide rail 5 from below can be pivotally supported on the free ends of the rollers 14 and 14, respectively.

In this case, the upper and lower parallel links 11, 13 and 12, 14 of the second door 2 have the vertical interlocking shafts 29, 3 respectively.
It is possible to interlock with each other by setting 0.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the structure and operation of a sliding door device to which the present invention is applied will be described with reference to the accompanying drawings.
1 and 2, 1 is a first door, 2 is a second door,
An opening 3 is opened and closed by both doors. An upper guide rail 4 is installed above the opening 3 along the door opening / closing direction, and a lower guide rail 5 is laid below the opening 3 along the door opening / closing direction. The first door 1 is hung on the upper guide rail 4 via a pair of upper roller units 6 and 7 attached to the inside of the door near the upper corners, and a pair of doors attached to the inside of the door near the lower corners. The lower roller units 8 and 9 are supported by engaging the lower guide rail 5 so that they can move laterally while maintaining a vertical posture.

The upper end of the second door 2 is suspended from the lateral moving body 10 supported by the upper guide rail 4 so as to be laterally movable via a pair of upper parallel links 11 and 12 in the moving direction, and By engaging the vertical guide rollers 5 and 16 axially supported above the free ends of the pair of lower parallel links 13 and 14 in the moving direction provided at the lower end of the second door 2 with the lower guide rail 5, Between an inner position (Fig. 1) that can move laterally while maintaining a vertical posture and that abuts the first door 1 and an outer position (Fig. 2) that can laterally move outside the movement path of the first door 1. It is supported so that it can move in parallel.

As shown in FIGS. 3A and 4A, the pair of upper roller units 6 and 7 of the first door 1 respectively include vertical shaft rollers 6a and 7a for steadying and horizontal shaft rollers 6b and 7b for supporting. The support members 6c and 7c are pivotally supported, and the support members 6c and 7c are attached to the insides of both ends of the belt-shaped plate 17 having a length that extends over substantially the entire width of the first door 1. It is attached to the inner surface of the upper end of the door 1. Further, as shown in FIGS. 3B and 4B, the pair of lower roller units 8 and 9 of the first door 1 have the vertical shaft rollers 8a and 9a for steadying the mounting members 8b and 9a, respectively.
b is pivotally supported on the upper side of the inwardly projecting portion of b, and the attachment members 8b and 9b are attached to the insides of both ends of the strip-shaped plate 18 having a length substantially covering the entire width of the first door 1.
Is attached to the inner surface of the lower end of the first door 1.

As shown in FIGS. 3A and 5A, the lateral moving body 10 is provided with roller units 20 and 21 at both ends of a channel member 19 whose front side is open. Therefore, each roller unit 20, 21 has a pair of upper and lower vertical shaft rollers 20a, 20b and 21a, 21b for steady rest.
And the horizontal shaft rollers 20c and 21c for supporting the mounting member 2
0d and 21d are pivotally supported, and these mounting members 20
d and 21d are fitted and fixed to both ends of the channel member 19.
Also, a pair of upper and lower vertical shaft rollers 20a, 2 for steadying
0b and 21a, 21b are one vertical support shaft 20e, 2
The inner ends of the upper parallel links 11 and 12 are supported by the vertical support shafts 20e and 21e between the upper and lower steady vertical shaft rollers 20a and 21a and the mounting members 20d and 21d, respectively. ing.

The upper guide rail 4 has a structure shown in FIGS.
As shown in FIG. 6, FIG. 8, and FIG. 10, each has a first rail portion 22 and a second rail portion 23 whose front side is open, and the first rail portion 22 is below the second rail portion 23. It is continuously connected to the front side of the half part. However, on the first rail portion 22, the vertical shaft rollers 6a, 7a for steadying and the horizontal shaft rollers 6b, 7b for supporting in the upper roller units 6, 7 of the first door 1 are laterally fitted. In the second rail portion 23, the steady vertical shaft rollers 20a, 20b and 21 in the roller units 20 and 21 of the lateral moving body 10 in a state where the lateral moving body 10 is built in.
a, 21b and supporting horizontal shaft rollers 20c, 21c are fitted laterally so that each roller unit 20, 2
The downward groove-shaped rail portion 23a into which the upper steady-state vertical shaft rollers 20a and 21a of 1 are fitted is fitted in the groove 25 formed on the lower surface of the top plate 24 that constitutes the opening 3.

The lower guide rail 5 is shown in FIG. 3B, FIG. 5B,
As shown in FIG. 7, FIG. 9, and FIG. 11, a groove-shaped first rail portion 26 and a second rail portion 27, each of which is open at the lower side, are integrally connected in parallel in the front-rear direction. It is laid on the lower side of the front side of the floor plate 28 forming the part 5. Then, the first rail portion 26 is fitted with the vertical shaft rollers 8a, 9a for steadying in the lower roller units 8, 9 of the first door 1 so as to be able to move laterally, and the second rail portion 27 The vertical axis rollers 15 and 16 for steadying the free ends of the lower parallel links 13 and 14 of the second door 2 are laterally fitted to this.

As shown in FIG. 1B, a pair of upper parallel links 11 and 12 of the second door 2 and a pair of lower parallel links 1 of the second door 2.
3, 14 and those on the same side, the vertical interlocking shaft 2
9 and 30 are interlockingly connected to each other. More specifically, as shown in FIGS. 3, 4, 10, and 11, the pair of upper parallel links 11 and 12 includes the bearing member 3
A state in which the bearing members 31 and 32 are fixed to the upper ends of the vertical support shafts 11a and 12a supported by the first and second support shafts 32, and the bearing members 31 and 32 are attached to the inside of the strip-shaped plate 33 having a length substantially extending over the entire width of the second door 2. Then, the strip-shaped plate 33 is fitted into the recess formed on the inner surface of the upper end of the second door 2, and the strip-shaped plate 33 is attached to the inner surface of the upper end of the second door 2. In addition, torsion coil springs 11b and 12b for applying a rotational force in a predetermined direction to the vertical support shafts 11a and 12a are arranged in the bearing members 31 and 32, respectively. The springs 11b and 12b bias the upper parallel links 11 and 12 extending inward (toward the opening 3) with respect to the second door 2 so as to rotate outward. However, since the free ends of the upper parallel links 11 and 12 are axially supported by the lateral moving body 10 that fits into the upper guide rail 4, the springs 11b and 12b are consequently moved relative to the lateral moving body 10. The second door 2 is urged in the direction of moving inward (toward the opening 3). 11c, 12c
Is a stopper projecting from the upper ends of the bearing members 31 and 32, and limits the amount of parallel translation of the second door 2 to the outside through the upper parallel links 11 and 12.

The pair of lower parallel links 13 and 14 are vertical support shafts 13a and 14a supported by bearing members 34 and 35, respectively.
The bearing members 34 and 35 are fixed to the lower end of the second door 2 and are formed on the inner surface of the lower end of the second door 2 in a state where the bearing members 34 and 35 are attached to the inner side of the strip plate 36 having a length that extends over substantially the entire width of the second door 2. The strip-shaped plate 36 is fitted into the recessed portion formed in the recess, and is attached to the inner surface of the lower end of the second door 2. Also, each bearing member 3
Torsional coil springs 13b and 14b for applying a rotational force in a predetermined direction to the vertical support shafts 13a and 14a are arranged in the shafts 4 and 35. These springs 13b and 14b are springs 11b and 12b for biasing the upper parallel links 11 and 12, respectively.
Similarly, the second door 2 is biased inward (toward the opening 3) through the lower parallel links 13 and 14 in a direction in which the second door 2 is translated. 13c and 14c are bearing members 34,
A stopper provided at the lower end of 35 to limit the amount of parallel movement of the second door 2 to the outside through the lower parallel links 13 and 14.

Thus, the pair of upper bearing members 31, 3
The vertical support shafts 11a and 12a projecting downward from 2 and the vertical support shafts 13a and 14a projecting upward from the lower pair of bearing members 34 and 35 are located concentrically with each other and form a vertical pair. Support shafts 11a, 13a and 12a,
The upper and lower ends of the vertical interlocking shafts 29, 30 made of pipe material are externally fitted to the shaft 14a so that they can only be inserted and removed in the axial direction. The vertical interlocking shafts 29, 30
Are linked to each other by. The bearing member 3
Since the vertical interlocking shafts 29 and 30 are embedded in the inner surface of the second door 2, the vertical interlocking shafts 29 and 30 are recessed grooves 37 and 38 formed in the inner surface of the second door 2. Have been loosely fitted in.

Further, as shown in FIGS. 1 to 4 and 6, a second door pushing means 39 is also provided. The second door pushing means 39 is provided along with the second door 2 when the first and second doors 1 and 2 relatively move toward each other from a closed state where the first and second doors 1 and 2 abut each other as shown in FIGS. 1 and 3. Each twisted coil spring 11b, 12b, 13b, 14b (Fig.
2) is a means for moving the second door 2 to the outside of the first door 1 as shown in FIG. An upper cam driven lever 40, which is continuously provided from the free end portion of the link 11 adjacent to the door 1 and has a cam driven roller 40a axially supported below the free end,
The upper cam driven lever 40 (the cam driven roller 40
Among the upper side cam 41 and the lower side parallel links 13 and 14 provided on the upper end side of the first door 1 so as to act on a), the free end portion of the link 13 adjacent to the first door 1 is continuously provided. And a lower cam follower lever 42 having a cam follower roller 42a pivotally supported on the upper side of the free end, and provided on the lower end side of the first door 1 so as to act on the lower cam follower lever 42 (cam follower roller 42a). Lower cam 43, first door 1 of second door 2
The auxiliary cam driven roller 44 mounted on the rear end side that does not abut with the auxiliary cam driven roller in a state where the opening 3 is closed by the first and second doors 1 and 2 (see FIGS. 1 and 3). Auxiliary fixed cam 4 disposed at a position adjacent to 44
It is composed of 5.

The upper cam 41 has an inclined start end portion 41a for swinging the upper parallel link 11 outward, and a straight portion 41b extending from the inclined start end portion 41a to the vicinity of the rear end of the first door 1. The inclined starting end portion 41a
Is a cam groove formed on the upper surface of the mounting member 6c of the upper roller unit 6 on the side adjacent to the second door 2 among the upper roller units 6 and 7 of the first door 1. 41b is constituted by the surface of the strip plate 17 to which the upper roller units 6 and 7 of the first door 1 are attached. Further, the lower cam 43 includes an inclined start end portion 43a that swings the lower parallel link 13 outward, and a linear portion 43b that extends from the inclined start end portion 43a to a vicinity of a rear end of the first door 1. The inclined starting end portion 4
3a is a lower roller unit 8 on the side adjacent to the second door 2 among the lower roller units 8 and 9 of the first door 1.
Of the mounting member 8c, the linear portion 43b is constituted by the surface of the strip-shaped plate 18 to which the lower roller units 8 and 9 of the first door 1 are mounted. .

The auxiliary cam driven roller 44 is axially supported by a member 46 attached to the front surface side of the strip plate 33 to which the pair of upper bearing members 31, 32 of the second door 2 are attached, and the auxiliary fixing. The cam 45 is arranged inside one end of the upper guide rail 4.

In the sliding door device having the above structure, the second door 2 is provided with the second rail portion 23 of the upper guide rail 4.
(The lateral moving body 10) and the second rail portion 2 of the lower guide rail 5.
7, the pair of upper and lower parallel links 11 to 14 can move parallel to the front and rear while maintaining the vertical posture, and can also move laterally along the upper and lower guide rails 4 and 5. The torsion coil springs 11b to 14b for urging the parallel links 11 to 14 urge the second door 2 into the opening 3.
By contacting the cam follower rollers 40a, 42a of the upper and lower cam follower levers 40, 42 in the second door pushing means 39 with the inclined start ends 41a, 43a or the straight portions 41b, 43b of the upper and lower cams 41, 43, respectively. , The position of the second door 2 in the front-rear direction is determined.

However, as shown in FIGS. 1 and 3, when the opening 3 is closed by the first and second doors 1 and 2, the second door 2 is the movement path of the first door 1. It is inside and is in a state of facing the first door 1. In this state, the upper and lower cam follower levers 40, 4 in the second door pushing means 39.
2 cam driven rollers 40a and 42a are provided for the upper and lower cams 4, respectively.
1, 43 are in contact with the ends of the inclined start ends 41a, 43a, and the position of the second door 2 in the front-rear direction is restricted to a position where the surface is flush with the first door 1. Actually, the position of the second door 2 in the front-rear direction is unstable due to play and bending of each part, while the first door 1 is arranged on the upper and lower guide rails 4 and 5 via the roller units 6 to 9. In the illustrated embodiment, the front end portion of the second door 2 that abuts the first door 1 is supported by the first door 1 of the first door 1. Positioning is performed by receiving the receiving portion 48 provided at the front end portion of the second door 2 with the receiving portion 47 provided at the front end portion facing the second door 2.
The rear end portion of the second door 2 has the auxiliary cam driven roller 44 provided at the rear end portion of the second door 2 and the rear side wall 4a of the upper guide rail 4 (rear side wall of the second rail portion 23). It is configured to be positioned by being received by.

The receiving portion 47 on the first door 1 side and the receiving portion 48 on the second door 2 side may have any configuration. For example, in the illustrated embodiment, the front end portion of the first door 1 and the front end portion of the second door 2 that face each other are replaced by the first door 1
Is formed in a stepwise cross-section so as to overlap each other in the front and rear with the front end of the inside of the door being inward, and the receiving portion 47 and the received portion 48 are integrally formed in each door 1, 2. A receiving member that protrudes inside the front end portion of the second door 2 is attached to the inner surface of the front end of the door 1 and the receiving portion 47 that receives the front end portion (received portion 48) of the second door 2 with this receiving material is provided. It can also be configured.

In order to prevent relative movement of the first and second doors 1 and 2 in the state where the opening 3 is closed (see FIGS. 1 and 3), the doors 1 and 2 are prevented from moving relative to each other. , 2 may be arranged on the side of the opening 3 including the upper and lower guide rails 4 and 5, but in the illustrated embodiment, inside the upper roller units 6 and 7 of the first door 1. The projection 49 formed on the mounting member 7c of the roller unit 7 on the rear end side is the stopper surface 50 on one end of the upper guide rail 4.
And the auxiliary cam driven roller 44 provided at the rear end of the second door 2 comes into contact with an auxiliary fixed cam 45 provided inside the other end of the upper guide rail 4, thereby Positioning 2

To open the opening 3, the first door 1 is moved laterally toward the second door 2 as shown in FIG. 2A, or
As shown in B, the second door 2 is laterally moved to the first door 1 side. As shown in FIG. 2A, when the first door 1 is laterally moved to the second door 2 side, the inclined start end portions 41a and 43a of the upper and lower cams 41 and 43 on the first door 1 side are respectively moved upward and downward. Cam driven levers 40, 42 (cam driven rollers 40a, 42
via a), the upper and lower parallel links 11, 13 supporting the second door 2 are pushed together with the lateral moving body 10 in the lateral moving direction of the first door 1, and the upper and lower parallel links 11, 1 are also moved.
3 is rotated outward with respect to the lateral moving body 10.
At this time, the auxiliary cam driven roller 44 at the rear end portion of the second door 2 is in contact with the auxiliary fixed cam 45, so that the second door 2 rotates the outer parallel links 11 and 13 outward. And the auxiliary fixing cam 45 exerts an outward pushing force to the auxiliary cam driven roller 44, and moves a little backward (in the lateral movement direction of the first door 1), each of the torsion coil springs 11b. Each parallel link 11 against the biasing force of 14b
It moves in parallel to the lateral moving body 10 in parallel with the parallel swing motions of ˜14. The cams 41, 43, 45 are configured so that the movement of the second door 2 is performed without interfering with the front end portion of the first door 1 that moves laterally. , It is possible to enter the inside of the second door 2 which has been translated outward.

When the first door 1 moves into the inside of the second door 2 and moves laterally, the second door 2 is twisted by each torsion coil spring 1.
The first door 1 moving inside by the urging force of 1b to 14b
, But the cam driven rollers 40a of the upper and lower cam driven levers 40 and 42 on the second door 2 side,
Since 42a is in contact with the straight portions 41b and 43b of the upper and lower cams 41 and 43 on the first door 1 side, the angles of the parallel links 11 to 14 with respect to the lateral moving body 10 are kept constant, and the second door A predetermined gap is secured between 2 and the first door 1,
The two never touch each other.

The entry stroke limit of the first door 1 to the inside of the second door 2 can be regulated by providing the two doors 1 and 2 with portions abutting each other. In this embodiment, as shown in FIG. 2A, the front end of the first door 1 is configured to contact the member 46 that axially supports the auxiliary cam driven roller 44 on the second door 2 side. Another stopper member that replaces the member 46 may be provided so as to project inside the second door 2 or, although not shown, on the rear end surface of the first and second doors 2 and 1, 2. Among the protruding handles, the handle of the first door 1 is the second door 2
It can also be configured to abut the front end of the. When the second door 2 is pushed outward by the entrance of the first door 1 and moves in parallel, the parallel links 11 to 14 and the stoppers 11c to 14c on the second door 2 side contact, The second door 2 moves away from the first door 1 (the cam driven rollers 40a, 42a of the cam driven levers 40, 42 move inward from the straight portions 41b, 43b of the cams 41, 43).
It does not move too far.

Contrary to the above, when the second door 2 is laterally moved to the first door 1 side, the upper and lower cams 41 on the first door 1 side,
Inclination start end portions 41a and 43a of 43 rotate the upper and lower parallel links 11 and 13 to the outside with respect to the lateral moving body 10 via the upper and lower cam driven levers 40 and 42 (cam driven rollers 40a and 42a). become. At this time, the lateral operation force acting on the second door 2 is applied to each of the parallel links 11-14.
Acts to rotate the lateral moving body 10 outward.
Therefore, the second door 2 includes the torsion coil springs 11b to 14
The parallel links 11 to 14 move in parallel to the lateral moving body 10 in parallel with the parallel swing motion of the parallel links 11 to 14 against the biasing force of b, and laterally move outside the first door 1. The situation when the second door 2 laterally moves outside the first door 1 is the same as when the first door 1 laterally moves inside the second door 2 described above. The second door 2 laterally moves while maintaining a predetermined gap between them. As shown in FIG. 2B, the stroke limit in which the second door 2 overlaps the outside of the first door 1 is also regulated by the means described above.

As shown in FIG. 2A or FIG. 2B, the first door 1 and the second door 2 are overlapped inward and outward, that is, the opening 3 is opened, and the first door 1 is overlapped inward and outward. The second two doors 1 and 2 can also be laterally moved integrally. Also, the opening 3
When closing the door, either one or both doors may be laterally operated so as to return the first and second doors 1 and 2 which are overlapped inside and outside to the original positions. In this case, the upper and lower cam follower levers 4 on the second door 2 side immediately before the two doors 1 and 2 are separated from each other.
The cam driven rollers 40a, 42a of 0, 42 enter the inclined start ends 41a, 43a from above the straight portions 41b, 43b of the upper and lower cams 41, 43 on the first door 1 side, and the upper and lower parallel links 11, 13 Is rotated inward with respect to the lateral moving body 10 and the biasing force of each of the torsion coil springs 11c to 14c causes the second door 2 to start moving in parallel with respect to the lateral moving body 10 to move up and down. The cam driven rollers 40a, 42a of the cam driven levers 40, 42 are arranged to move the upper and lower cams 41, 4 respectively.
When the inner ends of the inclined start end portions 41a, 43a of the third door 3 are reached, the second door 2 is located in the movement path of the first door 1, and both doors 1,
As shown in FIG. 1, the two are connected in series with their surfaces flush with each other, and the opening 3 is closed.

Next, a description will be given of an embodiment of the present invention applied to the sliding door device having the above-mentioned structure. FIG. 4A and FIG.
As shown in FIG. 15, the upper guide rail 4 in which the upper side portion is removably fitted in the lower open groove 25 formed in the top plate 24 of the opening 3 is formed by the left and right sides of the opening 3. Both ends are detachably supported by rail supporting means 52, 53 attached to the insides of both side plates 51a, 51b. The rail supporting means 52, 53 are provided on both left and right side plates 51 of the opening 3.
Fixing member 5 fixed with wood screws 54 inside a and 51b
5 and a detachable member 57 which is detachable from the fixed member 55 and fixed to the fixed member 55 with a screw 56.

More specifically, the fixing member 55 has inwardly projecting portions 58 to 58 on both upper and lower sides and a rear side of a rectangular plate provided with a mounting hole 54a and a detachable member fixing screw hole 56a. 60 is provided, and the top plate 2 is provided from the upper end.
4 is provided with a protruding portion 61 that fits in the groove 25, the upper surface of the lower protruding portion 59 forms a temporary receiving portion 62 of the upper guide rail 4, and the upper and lower protruding portions 59, 60 face each other. Attachable / detachable member slide guides 63a and 63b are formed on the. The attachment / detachment member 57 is provided with engaging portions 64a, 64b on the upper and lower sides of a rectangular plate having attachment holes 56b, which engage with the attachment / detachment member slide guides 63a, 63b of the fixing member 55 slidably in the front-rear direction. And inside,
A rail supporting stepped portion 65 that supports the upper guide rail 4 is formed.

Note that FIGS. 3A, 4A, 13B, and 1
As shown in FIG. 5B, the fixed cam 45 of the second door pushing means 39 is integrally formed with the attaching / detaching member 57 of the rail supporting means 53 on the corresponding side of the rail supporting means 52, 53. Further, as shown in FIGS. 3A and 4A, the surface of the attachment / detachment member 57 of the other rail support means 52 is the first door 1
Stopper surface 50 with which the projection 49 provided on the side abuts
Is formed.

A method of using the rail supporting means 52, 53 having the above structure will be described. As shown in FIG.
5, the projection 61 is fitted in the groove 25 of the top plate 24 and is moved to the back side so that the rear side of the projection 61 abuts on the rear side surface of the groove 25, and the upper end side is set to the top. While being in contact with the lower side surface of the plate 24, it is fixed to the inner side surfaces of the side plates 51a and 51b by using the mounting holes 54a and the wood screws 54.
In this state, the inner side surface (front side) of the rear side projecting portion 60 of the fixing member 55 is flush with the rear side surface of the groove 25 of the top plate 24 and is positioned at a right angle to the top plate 24. The distance between the top plate 24 and the temporary receiving surface 62 is larger than the height of the upper guide rail 4. On the other hand, the upper guide rail 4 is laterally fitted to the upper roller units 6 and 7 of the first door 1 and the roller units 20 and 21 of the lateral moving body 10, and the upper guide rail 4 makes the first second Both doors 1 and 2 are ready to be hung.

Next, the upper guide rail 4 in a state in which the first and second doors 1 and 2 are suspended is attached to the steady vertical shaft rollers 8a and 9 of the lower roller units 8 and 9 of the first door 1, respectively.
a is fitted upward from below to the first rail portion 26 of the lower guide rail 5 attached to the lower side of the floor plate 28, and the lower parallel links 13, 1 of the second door 2 are fitted together.
While operating the steady-state vertical shaft rollers 15 and 16 of No. 4 to the second rail portion 27 of the lower guide rail 5 from the bottom to the top, both ends thereof are set to both sides as shown in FIG. The rail supporting means 52 and 53 fixed to the plates 51a and 51b as described above are inserted between the lower projecting portion 59 of the fixing member 55 and the top plate 24, and both ends of the upper guide rail 4 are fixed to the fixing members. It is placed on the temporary receiving portion 62 of 55. At this time, the upper guide rail 4 does not move to the left and right in the rail length direction, and does not fall off from the temporary receiving portions 62 of both rail supporting means 52 and 53, and protrudes inward of the temporary receiving portion 62. The amount is fixed.

Next, one end side of the upper guide rail 4, for example, the end portion on the rail supporting means 52 side is lifted, and the downward grooved rail portion 23a of the upper end of the second rail portion of the upper guide rail 4 is formed into the groove of the top plate 24. 25 in the state where the detachable member 57 of the rail support means 52 is engaged with the upper and lower engaged portions 64a and 64b of the rail support means 52 and the upper and lower detachable member slide guides 63a and 63b of the fixing member 55. , Is mounted on the fixing member 55 by being inserted between the fixing member 55 and one end of the upper guide rail 4, and is attached with the one end of the upper guide rail 4 received by the rail supporting step portion 65 of the attaching / detaching member 57. The attachment / detachment member 57 is fixed to the fixing member 55 using the mounting hole 56b, the mounting screw hole 56a, and the screw 56. After this, similarly, the other end of the upper guide rail 4 is supported by the other rail support means 53.

As described above, both end portions have both side plates 51a,
The upper guide rail 4 supported by the rail support means 52 and 53 on the rail 51b has both downward rails 23a of the upper end of the second rail portion fitted in the groove 25 of the top plate 24. Attaching / detaching member 5 in supporting means 52, 53
Since it is horizontally supported by the rail supporting stepped portion 65 of 7, there is no risk of falling off to the front (front side). Further, the supported upper guide rail 4 is allowed to move in the rail length direction, so that the attachment / detachment member 57 in both rail support means 52 and 53 is attached.
Within the range of the difference between the distance between the opposite side surfaces of the upper guide rail 4 and the total length of the upper guide rail 4, and by sufficiently reducing the difference, the upper guide rail 4 is substantially fixedly supported at a fixed position. It can be done.

When the first and second doors 1 and 2 relatively move toward each other from the closed state in which they face each other, the second door 2 is moved to the first position against the biasing force of the torsion coil springs 11b to 14b. The configuration of the second door pushing means 39 for moving the one door 1 to the outside is not limited to that of the above embodiment.
Also, the position of the spring for urging the second door 2 toward the movement path of the first door 1 and the type of spring are not limited to those in the above embodiment. Of course, basically, the upper and lower parallel links 11 to 14 of the second door 2 may be independently swingable. Further, the upper roller units 6, 7 of the first door 1
May be configured to be able to be engaged later with the upper guide rail 4 in a state of being installed at a predetermined position by the rail supporting means 52, 53.

[0039]

The sliding door device of the present invention can be implemented and used as described above, and according to the present invention device, the second door is connected to the transverse member and the parallel link. Since the upper guide rail in a state of being suspended via the rail support means arranged on both sides of the opening can be erected at a predetermined position, the upper guide rail previously engaged with the upper guide rail can be installed. Not only does the attachment / detachment mechanism that connects the second door hanging lateral motion body and the second door via the parallel link unnecessary, the configuration of the entire apparatus can be simplified and the cost can be reduced. It is easy and easy to suspend the second door. As for the first door, it is possible to hang it together with the second door on the upper guide rail before mounting, and to install the upper guide rail at a predetermined position. It is possible to adopt a configuration in which the first door cannot be removed unless the door is removed, and the device as a whole can be utilized as a sliding door device in which there is no risk of the door being accidentally removed.

According to the second aspect of the present invention, the upper side of the upper guide rail is fitted in the lower open groove formed in the top plate of the opening, so that the front and rear of the upper guide rail is front and rear. Since the position in the direction is determined by the groove, the rail supporting means only needs to have a function of preventing the upper guide rail from coming off from the groove, which not only simplifies the structure of the rail supporting means. , The upper guide rail can be firmly held. In this case, claim 3
According to the configuration described in (1), since the upper guide rail before being fitted into the groove of the top plate can be temporarily received at a position below the groove, at least the second door is suspended and the heavy upper guide is suspended. Compared with the case where the work of mounting the attachment / detachment member of the rail support means must be performed while supporting the rail by hand, the work of constructing the upper guide rail can be performed easily.

According to the structure described in claim 4, not only can the mounting work of the fixed cam used for the second door pushing means and the erection work of the upper guide rail be performed at the same time, but also the fixed cam of the fixed cam can be mounted. Since the attaching means and the attaching / detaching member of the rail supporting means can be used in common, the number of parts can be reduced.

Further, according to the structure of claim 5, the lower ends of the first and second doors can also be steady by the lower guide rail and the vertical shaft roller engaged with the lower guide rail. However, since the lower guide rail is a grooved rail that is open on the lower side, and the vertical shaft rollers on the lower end sides of the first and second doors can be fitted to the lower guide rail from below, the upper guide The vertical axis roller for steady rest on the lower end side of the second door (and the first door) can be engaged with the lower guide rail while being hung on the rail. A detachable mechanism is not required between the engaging vertical axis roller and the door, and the device has a lower guide rail for steadying, but the configuration of the entire device and the installation work of the door are easy. Can be

In this case, according to the structure of claim 6, since the upper and lower parallel links of the second door are interlockingly connected to each other by the vertical interlocking shaft, the second door is suspended on the upper guide rail. The vertical axis roller position of the lower parallel link of the second door is maintained at a fixed position only by holding the door of the vertical guide to the upper guide rail. Since the position of the roller does not sway unexpectedly, it becomes easy to engage the vertical axis roller of the lower parallel link of the second door with the lower guide rail from below.

[Brief description of drawings]

FIG. 1 is a plan view in which a guide rail is omitted in a state where an opening is closed, and FIG. 1B is a rear view of the same.

FIG. 2 is a plan view in which a guide rail is omitted when the first door is moved laterally to open the opening, and FIG. 2B is a plan view in which the second door is moved laterally to open the opening. It is a top view which abbreviate | omitted the guide rail in the opened state.

3 is a partially cutaway cross-sectional plan view showing details in the state of FIG. 1A, and FIG. 3B is a cutaway bottom view of the same portion.

4A is a partially cutaway vertical rear view showing details of the upper portion in the state of FIG. 1A, and FIG. 4B is a partially cutaway vertical rear view showing details of the lower portion.

5 is a partially cutaway vertical rear view showing an upper guide rail and a lateral moving member fitted to the upper guide rail, and FIG.
It is a partially cutaway longitudinal rear view showing details of the lower portion in the state of A.

FIG. 6 is a vertical cross-sectional side view near the upper front end of the first door.

FIG. 7 is a vertical cross-sectional side view of the vicinity of the lower portion of the front end.

FIG. 8 is a vertical cross-sectional side view near the upper portion of the rear end.

FIG. 9 is a longitudinal side view of the vicinity of the lower portion of the rear end of the same.

FIG. 10 is a vertical cross-sectional side view near the upper rear end of the second door.

FIG. 11 is a vertical cross-sectional side view in the vicinity of the lower rear end of the same.

FIG. 12 is a vertical cross-sectional side view showing a state before mounting a fixing member of a rail supporting means, and FIG. 12B is a vertical side view showing a state after mounting a fixing member of a rail supporting means and before attaching a detachable member. is there.

FIG. 13 is a vertical sectional front view showing a temporary receiving state of one end portion of the upper guide rail with respect to the rail supporting means;
The figure is a vertical cross-sectional front view showing a temporary receiving state of the other end portion.

FIG. 14 is a vertical cross-sectional side view showing a supported state of one end portion of the upper guide rail with respect to the rail support means.

FIG. 15 is a vertical sectional front view showing a supporting state of one end of the upper guide rail with respect to the rail supporting means, and FIG.
The figure is a vertical sectional front view showing a supporting state of the other end portion.

[Explanation of symbols]

1 First Door 2 Second Door 3 Opening 4 Opened and Closed by Both Doors Upper Guide Rail 5 Lower Guide Rails 6, 7 Upper Roller Units 6a, 7a, 8a, 9a, 15, 16, 20a-21b
Steady vertical shaft rollers 6b, 7b, 20c, 21c Supporting horizontal shaft rollers 6c, 7c, 8b, 9b, 20d, 21d Mounting members 8, 9 Lower roller unit 10 Lateral moving body 11, 12 Upper parallel links 11a, 12a , 13a, 14a, 20e, 21e
Vertical support shafts 11b, 12b, 13b, 14b Torsion coil springs 11c, 12c, 13c, 14c Stoppers 13, 14 Lower parallel links 17, 18 Belts 20, 21 Roller unit 22 First rail part (upper guide rail) 23 Second rail part (upper guide rail) 24 Top plate 26 First rail part (lower guide rail) 27 Second rail part (lower guide rail) 28 Floor plate 29, 30 Vertical interlocking shaft 31, 32, 34, 35 Bearing Members 33, 36 Belt-shaped plate 39 Second door pushing means 40 Upper cam driven levers 40a, 42a Cam driven roller 41 Upper cams 41a, 43a Inclination start ends 41b, 43b of cams Straight portion 42 of cam Lower cam driven lever 43 Lower Side cam 44 Auxiliary cam driven roller 45 Auxiliary fixed cam 47 First door-side receiving portion 48 Second door-side covered member Cage 49 Projection 50 Stopper surfaces 51a, 51b Left and right side plates 52, 53 of the opening Rail support means 55 Fixing member 57 Attachment / detachment member 58-60 Fixing member overhang 61 Projection 62 Upper guide rail temporary receiving part 63a, 63b Attachment / detachment member slide guides 64a, 64b Engagement part 65 Rail support step of attachment / detachment member

Claims (6)

[Claims] 1. A first door suspended laterally from an upper guide rail, and a first movable body laterally supported by the upper guide rail via at least a pair of parallel links in a moving direction. The second door suspended so that it can move in parallel to the outside of the movement path of the door, the spring for urging the second door toward the movement path of the first door, and the first and second doors project toward each other. A sliding door provided with a second door pushing means for moving the second door to the outside of the first door against the biasing force of the spring when relatively moving closer from the closed state. In the device, rail support means for detachably supporting both ends of the upper guide rail is disposed on both sides of an opening opened and closed by the first and second doors, and at least the second door is parallel to the lateral moving body. The upper guide rail suspended via the link Configured to be bridged by the lifting means, pulling difference door device. 2. The sliding door device according to claim 1, wherein the upper side of the upper guide rail can be freely inserted into and removed from a lower open groove formed in the top plate of the opening. 3. The fixing member, wherein the rail supporting means is fixed to both sides of the opening and has a temporary receiving portion for temporarily receiving the upper guide rail at a lower position before fitting to the groove, and to the fixing member. 3. The sliding door device according to claim 2, further comprising: a detachable member that is detachable in the front-rear direction and that supports an upper-side upper guide rail fitted in the groove in an attached state. 4. The cam follower roller, wherein the second door pushing means is attached to the rear end side of the second door that does not abut the first door of the second door, and the opening portion is formed by the first and second doors. The sliding door device according to claim 3, further comprising a fixed cam adjacent to the cam driven roller in a closed state, the fixed cam being provided on a detachable member of the rail supporting means. 5. A lower open groove-shaped lower guide rail for preventing the lower ends of the first and second doors from swaying is provided, and the lower guide rail is provided at the lower end of the first door. A vertical shaft roller that fits from below is pivotally supported, and at the lower end of the second door, a lower parallel link that is the same as the parallel link that suspends the second door is provided. The sliding door device according to any one of claims 1 to 4, wherein a vertical shaft roller that is fitted into the lower guide rail from below is pivotally supported on the free end side of the. 6. The sliding door apparatus according to claim 5, wherein the upper and lower parallel links of the second door are interlockingly connected to each other by a vertical interlocking shaft.