JP2003129736A - 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, and is improved in operational stability thereof. 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. 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 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, the upper parallel links 11, 12 of the second door 2 are vertically concentrically arranged with lower parallel links 13, 14, respectively, and a pair of the upper and lower parallel links 11, 13 which are vertically concentrically arranged are interlocked to each other by a vertical interlocking shaft 29 while a pair of the upper and the lower parallel links 12, 14 which are vertically concentrically arranged are interlocked to each other by a vertical interlocking shaft 30.

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.

This type of sliding door device comprises a first door and a second door, an upper guide rail and a lower guide rail, and the upper guide rail and the lower guide rail are provided on both upper and lower sides of the first door. Roller units that laterally engage with the side guide rails are disposed, and outer end sides of the second door vertically and laterally engage with the upper guide rail and the lower guide rail, respectively. At least the inner ends of the pair of parallel links in the moving direction are pivotally supported so that the second door can move in parallel to the outside of the moving path of the first door, and the second door can be moved to the first door. When the first and second doors move relatively toward each other from the closed state in which they face each other, the second door is moved against the biasing force of the spring. Second door pushing means for moving to the outside of the door

[0004]

However, in the conventional sliding door device as described in the above publication, the upper parallel link and the lower parallel link supporting the second door are independent of each other. Since the upper parallel link and the lower parallel link are configured to be able to swing freely,
During the parallel movement of the second door, a large variation occurs in the movement above and below the second door, and in particular, the upper parallel link and the lower parallel link are supported by the guide rail so that they can move laterally. There is a problem that the operation on the side provided with the parallel links that are not connected to each other by the lateral moving body becomes very unstable.

[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. As shown by reference numerals, the first door 1 and the second door 2, and the upper guide rail 4 and the lower guide rail 5 are provided, and the upper guide rail 4 is provided on both upper and lower sides of the first door 1. And roller units 6 to 9 which are laterally engaged with the lower guide rail 5 are attached, and the upper and lower guide rails 5 and 5 have outer ends on the upper and lower sides of the second door 2. At least the inner end sides of the pair of parallel links 11 to 14 that are laterally engaged with each other are axially supported, and the upper parallel links 11 and 12 and the lower parallel links 13 and 14 are supported.
And at least one of them (upper parallel link 11, 12)
Are connected to each other by a lateral moving body 10 which is laterally supported by a guide rail (upper guide rail 4), and the second door 2 is configured to be able to move in parallel to the outside of the movement path of the first door 1. At the same time, springs 11b to 14b for urging the second door 2 toward the movement path of the first door 1 are provided side by side.
A second door for moving the second door 2 to the outside of the first door 1 against the biasing force of the springs 11b to 14b when the two relatively move from the closed state where they abut each other. A sliding door device provided with an extruding means 39,
The upper parallel links 11 and 12 and the lower parallel links 13 and 14 of the second door 2 are arranged vertically and concentrically, and the upper and lower concentric upper parallel links 11 (12) and the lower parallel links 13 ( 14) and the vertical interlocking shafts 29 and 30 are interlocked with each other.

In carrying out the device of the present invention having the above-mentioned structure, the upper parallel links 11 and 12 and the lower parallel link 13,
Bearing members 31, 3 for separately supporting each of 14
2, 34, 35 are embedded in the inner surface of the second door 2, and the vertical interlocking shafts 29, 30 for interlockingly connecting the upper parallel links 11, 12 and the lower parallel links 13, 14 are Door 2
It can be loosely fitted in the concave grooves 37, 38 formed on the inner surface of the.

A plurality of bearing members 31, 32 for separately supporting the upper parallel links 11, 12 are attached to one upper strip plate 33 attached to the inner surface of the upper end of the second door 2, and A plurality of bearing members 34, 35 for separately supporting the lower parallel links 13, 14 can be attached to one lower strip plate 36 attached to the inner surface of the lower end of the second door 2. In this case, each bearing member 31, 32, 3
4, 35 can be configured to be attached to the inside of the strip-shaped plates 33, 36 and embedded in the inner surface of the second door 2.

Further, the vertical interlocking shafts 29 and 30 are configured such that the upper and lower ends thereof are supported by bearing members, and the parallel links 11 to 14 are directly attached to the ends of the vertical interlocking shafts protruding from the bearing members. The vertical interlocking shaft 2 can be provided by using the bearing members 31, 32, 34, 35 that separately support the upper parallel links 11 and 12 and the lower parallel links 13 and 14 by the vertical support shafts 11a to 14a, respectively.
9 and 30 are fitted to the ends of the vertical support shafts 11a to 14a protruding inward from the bearing members 31, 32, 34, and 35 so that they can only be pulled in and out in the axial direction, and the upper and lower parallel links 11, 13 and It is preferable to connect 12 and 14 together.

Further, the springs 11b to 14b are all bearing members 31, 32, 34, which respectively support the upper parallel links 11, 12 and the lower parallel links 13, 14 respectively.
It can be constituted by a torsion coil spring built in 35.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.
Is a first door, 2 is a second door, and 3 is an opening that 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 is attached to the inside of the door near the lower corners. Lower roller unit 8,
9 is engaged with the lower guide rail 5 so that it can be laterally moved 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 a pipe material are fitted to the shaft 14a so that they can be inserted and removed only in the axial direction.
And the lower parallel link 14 are interlockingly connected to each other by the vertical interlocking shafts 29 and 30. Incidentally, the bearing members 31, 3
2 and 34, 35 are embedded in the inner side surface of the second door 2, the vertical interlocking shafts 29, 30 are
Will be loosely fitted in the concave grooves 37, 38 formed on the inner surface of the.

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.

As shown in FIGS. 3A and 4A, both ends of the upper guide rail 4 are rail supporting means 5 provided inside the left and right side plates 51a and 51b forming the opening 3.
One rail support means 52 supported by 2, 53
The stopper surface 50 is formed on the other side, and the auxiliary fixing cam 45 is provided on the other rail supporting means 53.

For reference, an example of an assembling work method of the parallel links 11 to 14 to the second door 2 will be described, but the order of the works can be appropriately changed within a range that does not contradict. That is, the vertical support shafts 11a and 12a fixed to the outer end portions of the upper parallel links 11 and 12 are connected to the bearing members 31 and 3, respectively.
When it is mounted on the bearing 2, the torsion coil springs 11b and 12b are disposed in the bearing members 31 and 32.
2 and the vertical support shafts 11a and 12a. Each of the bearing members 31, 32 is fixed to a predetermined position on the inner surface of the upper strip-shaped plate 33 by a suitable means such as a screw, and the strip-shaped plate 33 is fixed to the inner surface of the upper end of the second door 2 by a suitable means such as a wood screw. Fixed. Therefore, since the outer end sides of the upper parallel links 11 and 12 are supported by the roller units 20 and 21 of the lateral moving body 10 and are connected to each other, the torsion coil springs 11b,
The lateral moving body 10 is superposed on the inner side surface (strip plate 33) of the second door 2 by the urging force of 12b. Next, one ends of the vertical interlocking shafts 29, 30 are attached to the end portions of the vertical support shafts 11a, 12a protruding from the bearing members 31, 32 into the concave grooves 37, 38 formed on the inner surface of the second door 2. Are fitted so as not to rotate relative to each other, and the vertical interlocking shafts 29, 30 are fitted in the concave grooves 37,
Loosely fit in 38.

The lower parallel links 13 and 14 are also connected to the vertical support shaft 1.
3a, 14a, the torsion coil springs 13b, 14b, the bearing members 34, 35, and the lower strip-shaped plate 36,
Like the upper parallel links 11 and 12, it is attached to the inner surface of the lower end of the second door 2, but at the time of attaching the strip plate 36 at the final stage, the parallel links 13 and 14 are twisted by a predetermined angle and coil springs 13b and 14b. The end portions of the vertical support shafts 13a and 14a projecting from the bearing members 34 and 35 are moved relative to the end portions of the vertical interlocking shafts 29 and 30 in the recessed grooves 37 and 38, respectively, in a state where the vertical support shafts 13a and 14a project from the bearing members 34 and 35. The belt-shaped plate 36 is fixed to the inner surface of the lower end of the second door 2 in such a state that the belt-shaped plate 36 is non-rotatably fitted. As a result, the vertical links 29, 30 are interlockingly connected to each other to form a pair of upper and lower parallel links 11, 13 and 1.
2 and 14 maintain a posture parallel to each other. In this state, the upper guide rail 4 is externally fitted to the lateral moving body 10 from the end, and the steady vertical shaft rollers 15 and 16 on the free end side of the lower parallel links 13 and 14 are attached to the first rail of the lower guide rail 5. Both ends of the upper guide rail 4 are supported by the rail supporting means 52 and 53 while being fitted into the portion 27 from below.

The vertical interlocking shafts 29 and 30 and the vertical support shaft 11a ...
The connecting method with 14a may be any method as long as the rotational movement can be transmitted between them, but in the illustrated embodiment, the pins are formed at the ends of the vertical support shafts 11a to 14a so as to project to both sides in the diametrical direction. And a notch for inserting the pin in the axial direction is formed at both ends of the vertical interlocking shafts 29 and 30 using a round pipe. It is configured to be externally fitted to the portion so that the pin and the notch fit. It is also possible to fix the pin through both ends of the vertical interlocking shafts 29 and 30 using round pipes and axially form diametrical cuts at the ends of the vertical support shafts 11a to 14a. Without using the pins as described above, the end portions of the vertical support shafts 11a to 14a are formed in a square shaft shape such as a quadrangle or a hexagon, and the vertical interlocking shafts 29, 3
As 0, it is also possible to use a square pipe which is fitted to the square shaft-shaped end portions of the vertical support shafts 11a to 14a so as not to be able to rotate relative to each other, or a round pipe in which only both ends are processed into a square pipe shape. I can. In either case, the vertical interlocking shafts 29, 30
Since both ends of are assembled so as to be sandwiched by the vertical support shafts 11a to 14a, they are simply fitted so that they cannot rotate relative to each other.
It does not have to stick to each other.

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. Further, the hanging type sliding door device is shown, but the present invention is also applied to the sliding door device of the type in which the first and second doors 1 and 2 are supported by the lower guide rail so as to be able to move laterally. You can In this case, it is possible to connect the lower parallel links of the second door to each other with a lateral moving member that is fitted laterally to the lower guide rail, and regardless of the door support method.
Both the upper and lower parallel links of the second door,
It is also possible to connect with a lateral moving body that fits laterally movable to the upper and lower guide rails.

[0036]

The sliding door device of the present invention can be implemented and used as described above. According to the present invention device, each upper parallel link and each lower door of the second door are Since the side parallel links are vertically concentrically arranged, and the upper and lower concentric upper parallel links and the lower parallel links are interlockingly connected to each other by the vertical interlocking shaft, the upper parallel links and the lower parallel links forming a vertical pair. The link always works in parallel with each other to maintain the same posture in parallel with each other. Therefore, when the second door is translated in the inward / outward direction (forward / backward direction), the movement of the second door varies depending on the vertical movement of the second door. Does not occur, or even if it does occur, there is a slight variation due to the amount of play in each part, and the movement on the side with parallel links that are not connected to each other by the lateral moving body that is laterally supported by the guide rail is extremely unsatisfactory. Eliminate the fear of becoming stable That is, the parallel movement operation when the second door leaves the first door and returns to the movement path of the first door is stable, and the commercial value can be increased.

Further, when the second doors are assembled to the upper and lower guide rails, the parallel links (the lower parallel links 13 and 14 in the embodiment) on the side which are not connected to each other by the lateral moving members fitted to the guide rails, Since it does not move freely because it maintains a posture parallel to the parallel links (upper parallel links 11 and 12 in the embodiment) on the side that is connected to each other by the lateral moving body that fits into the guide rails, it does not move freely. Assembly work to the upper and lower guide rails can be done easily. In addition, even when the second door having the parallel links attached thereto is boxed or transported, it is easy to keep the directions of the upper and lower parallel links constant, which is also convenient for these operations.

According to the second aspect of the invention, the bearing member for separately supporting the upper parallel link and the lower parallel link, and the vertical member for interlocking and coupling the upper parallel link and the lower parallel link. Since the interlocking shaft does not project to the outside of the inner surface of the second door, the overall thickness of the second door can be made to be almost the same as the thickness of the door itself, and the outside of the first door can be made thinner. There is no inconvenience that the position of the surface of the second door protrudes greatly when the two doors overlap and that the storage space inside the second door is narrowed.

According to the third aspect of the invention, a plurality of bearing members for separately supporting the upper parallel links are integrated by the strip-shaped plate, and the plurality of bearing members are attached to the second bearing member by mounting the strip-shaped plate. Since it can be mounted on the door at the same time, the mounting work of the bearing member can be performed efficiently and the mounting position accuracy of each bearing member can be improved as compared with the case where each bearing member is individually mounted on the second door. I can. In this case, according to the configuration of the fourth aspect, it is possible to obtain the effect of the configuration of the second aspect and the effect of the configuration of the third aspect at the same time.

Further, according to the structure of the fifth aspect, the assembling work of the entire second door can be easily performed. Further, according to the configuration of claim 6, since the biasing force can be uniformly applied to all the parallel links, and it is not necessary to secure the installation space of the spring outside the second door, It becomes easy to downsize the entire Ninoto.

[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.

[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 Only parts 49 projecting portions 50 a stopper surface 51a, the left and right side plates 52 and 53 the rail support means 51b opening

Claims (6)

[Claims] 1. A first door and a second door, an upper guide rail and a lower guide rail are provided, and the upper guide rail and the lower guide rail laterally move on both upper and lower sides of the first door. A roller unit that engages movably is attached, and at least on the upper and lower sides of the second door, at least one pair of parallel links whose outer ends engage laterally with the upper guide rail and the lower guide rail. The inner end side is axially supported, and at least one of the upper parallel link and the lower parallel link is connected to each other by a lateral moving body supported by a guide rail so that the second door is the first door. Is configured to be able to move in parallel to the outside of the movement path of the first door, and a spring for urging the second door toward the movement path side of the first door is provided side by side from the closed state where the first and second doors face each other. When moving relatively close to each other, the biasing force of the spring A sliding door device provided with a second door pushing means for moving the second door to the outside of the first door against each other, each upper parallel link and each lower side of the second door. A sliding door device in which parallel links are arranged concentrically in the vertical direction, and upper and lower concentric parallel links and lower parallel links are interlockingly connected to each other by a vertical interlocking shaft. 2. A vertical interlocking device in which bearing members for separately supporting the upper parallel link and the lower parallel link are embedded in the inner surface of the second door to interlock the upper parallel link and the lower parallel link. The sliding door device according to claim 1, wherein the shaft is loosely fitted in a groove formed on the inner surface of the second door. 3. A plurality of bearing members for individually supporting each upper parallel link are attached to one upper strip attached to the inner surface of the upper end of the second door, and each lower parallel link is separately supported. A plurality of bearing members are attached to one lower strip plate attached to the inner surface of the lower end of the second door,
The sliding door device according to claim 1. 4. The sliding door device according to claim 3, wherein each of the bearing members is attached to an inner side of the strip plate and is embedded in an inner surface of the second door. 5. A bearing member for respectively supporting the upper parallel link and the lower parallel link by a vertical support shaft is provided.
The sliding door device according to any one of claims 1 to 4, wherein the vertical interlocking shaft is fitted to an end portion of the vertical support shaft that protrudes inward from each bearing member such that the vertical interlocking shaft can only be inserted and removed in the axial direction. 6. The spring comprises a torsion coil spring installed in all bearing members for separately supporting the upper parallel link and the lower parallel link, respectively.
The sliding door device according to any one of to 5.