JP3080348B2 - Sliding door device - Google Patents

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 which can be used as an opening / closing door for a built-in storage unit or various storage furniture. It relates to a difference door device.

[0002]

2. Description of the Related Art There are known various sliding door devices in which the surfaces of respective doors are flush with each other when the door is closed. However, all of them have a very complicated structure, especially a guide rail structure. Was not practical. To solve such a problem, as described in Japanese Utility Model Publication No. 1-2068, one of the first doors can be moved only in the left-right linear motion like a general sliding door. A pulling device that is supported by one guide rail and the other second door body is supported by a traveling unit supported by the second guide rail so as to allow only left-right linear motion so as to be able to move in parallel inward and outward via parallel links. A door device was considered.

In this sliding door device utilizing a parallel link, when the first door is opened from a closed state in which the surfaces of both doors are flush with each other, the first door moves the second door outward. When the second door body is pushed out and moved in parallel to the inside of the second door body, and the second door body is opened from the closed state in which the surfaces of both door bodies are flush with each other, the second door body itself is the first door. It moves parallel to the outside of the body and opens the outside of the first door body.

In the sliding door apparatus utilizing the parallel link as described above, the first guide rail for supporting and guiding the first door body and the second guide rail for supporting and guiding the second door body are each a general sliding door. Similar to the guide rail of the difference door device, it may be a linear shape that is continuous over the entire opening and closing stroke of each door body,
No special path switching mechanism is required. In addition, the traveling unit and the parallel link that support the second door body, and the spring that urges the second door body inward are provided as special parts, so that the entire structure can be implemented extremely simply and inexpensively. However, a conventional sliding door device using a parallel link has the following configuration.

That is, a traveling unit supporting the upper part of the first door body and the upper part of the second door body is supported by a linear guide rail and a grooved door wheel fitted to the guide unit, respectively. A closed door in which the lower part and the traveling unit supporting the lower part of the second door body are respectively guided by a groove-shaped guide rail and a vertical axis roller fitted thereto, and the surfaces of both door bodies are flush with each other. Of the ends of both doors adjacent to each other in the state, the end of the first door is provided with a slidable inclined end surface facing obliquely outward, and the end of the second door is provided with the first door. A sliding inclined end face facing obliquely inward was provided so as to overlap the sliding inclined end face.
The second door body is urged inward by a spring so as to be flush with the first door body.

[0006]

In the conventional sliding door device using a parallel link as described above, when the first door is opened while the second door is pushed outward, the sliding inclination of both doors is used. The upper part of the first door body is pressed inward by the relative sliding movement of the end faces and the urging force of the spring acting on the second door body, thereby supporting the upper part of the first door body. When the frictional force between the linear guide rail and the grooved door roller increases, the resistance at the time of opening the first door body is extremely large, and the first door body cannot be opened lightly and smoothly. An object of the present invention is to solve such a conventional problem.

[0007]

To achieve the above object, the structural features of the present invention are denoted by reference numerals in the embodiments described later. The first door (1) and the second door (2) a pair of upper and lower first guide rails (6A, 6B), and a pair of upper and lower second guide rails (3A, 3B), and the first door body (1) is a pair of upper and lower first guide rails. (6A, 6B) and a traveling unit (14A, 14B) engaging with each of the
(38a, 38b), and each traveling unit (14A, 14B) has a vertical shaft wheel (17, 14) fitted to the grooved rail portion (8, 11) of each of the upper and lower first guide rails (6A, 6B). 19), and one of the upper and lower traveling units (14A) has a supporting horizontal shaft wheel (16) that rolls on the horizontal rail surface (7a) of the corresponding first guide rail (6A), The second door body (2) is a traveling unit that engages with each of a pair of upper and lower second guide rails (3A, 3B).
(4A, 4B), parallel link (5a, 5b) and spring (33)
And a pair of upper and lower vertical shaft rollers (34a, 34b), and each traveling unit (4A, 4B) includes upper and lower second guide rails (3A, 3B).
B) has vertical shaft wheels (22a, 22b, 26) fitted into the grooved rail portions (9a, 9b, 12), and one of the upper and lower traveling units (4A) is provided with a corresponding second guide rail ( 3A) has a supporting horizontal shaft wheel (23) that rolls on the horizontal rail surface (9c), and the parallel link (5a, 5b) is connected to each of the upper and lower traveling units (4A, 4A).
B) and the second door body (2), and the second door body (2) is located at an inner position (P1) overlapping the traveling path of the first door body (1) and the first door body (1). The spring (33) urges the second door body (2) in a direction of returning to the inner position (P1), and a pair of upper and lower vertical When the second door body (2) is at the inner position (P1), the shaft rollers (34a, 34b) are located at the ends adjacent to the inclined guide surfaces (38a, 38b) of the first door body (1). The first door body (1), which is pivotally supported at the inner corners of the upper and lower ends
Is opened toward the second door body (2) located at the inner position (P1), the vertical guide rollers (34a, 34b) of the second door body (2) are moved outward by the inclined guide surfaces (38a, 38b). By extruding the second door body
(2) is moved to the outside position (P2), and the second door (2) is moved.
It is characterized in that the vertical axis rollers (34a, 34b) of the second door body (2) come into contact with the surface of the first door body (1) that has entered the inside of the first door body.

In carrying out the apparatus of the present invention, the first door body (1) is provided with band-shaped cover members (36a, 36b) at both upper and lower ends thereof so as to be continuous over the entire length, and the inclined guide surface (38a) is provided. , 38b) are the upper and lower belt-shaped cover members (36a, 36b).
b), and a pair of upper and lower vertical shaft rollers (34a, 34b) of the second door body (2) are attached to the upper and lower belt-shaped cover members (36a, 36b) of the first door body (1). It can be configured to roll on. Also, a pair of upper and lower vertical shaft rollers (34a, 34b)
Can be supported by a parallel link bearing unit (28a, 31a) attached to the second door body (2).

The second door (2) has vertical axis rollers (34a, 34a).
A pair of upper and lower vertical shaft rollers (35a, 35b) are also supported inside the rear end (2b) opposite to the side with b), and the second door body (2) is at the inner position (P1). In some cases, the vertical axis rollers (34a to 35b) at the four inner corners of the second door 2 are guided by the guide rails (3A, 6B).
To be in contact with the surfaces (3a, 6a). When the second door body (2) is at the inner position (P1), the link links (27, 30) of the traveling units (4A, 4B) are connected to the parallel links (5a, 5b) by the second door body. It can be inclined in a direction located on the side where the first door body (1) is located with respect to the side link support shaft (29, 32).

Further, a vertical axis roller is provided on the second door body (2).
The rear end portion (2b) opposite to the side where (34a, 34b) is located can support a vertical shaft roller (42) that rolls in contact with the adjacent side wall surface (40a), and at least the outer side. The catch means (43) that gives resistance to the movement of the second door body (2) at the position (P2) away from the side wall (40) is provided by a vertical shaft roller (34a) of the second door body (2). , 34b) can be arranged on the rear end (2b) opposite to the side with the side and the side wall (40) adjacent thereto.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a sliding door device using two doors 1 and 2, and a first door 1 A pair of upper and lower linear second guide rails 3A and 3 for supporting and guiding the second door body 2
It is supported reciprocally by a first guide rail (not shown) parallel to B. The second door body 2 includes a pair of upper and lower traveling units 4A, 4A engaged with the second guide rails 3A, 3B.
B, an inner position P1 (see FIG. 1A) that is supported via the parallel links 5a and 5b and overlaps the traveling path of the first door body 1.
The first door body 1 can be moved in parallel with an outer position P2 with respect to the traveling route.

More specifically, referring to FIGS. 2 to 4, a first guide rail for supporting and guiding the first door 1 is a pair of upper and lower first guide rails 6A and 6B. The first and second upper and lower guide rails 6A, 3A are integrated in two stages, such that the second guide rail 3A is on the upper side, and the first and second lower and upper guide rails 6B, 6B, 3B is integrated in two upper and lower stages such that the first guide rail 6B is on the upper side.

The upper first guide rail 6A includes an outwardly opening grooved rail portion 7 and a downwardly opening grooved rail portion 8, and the upper second guide rail 3A is opposed to a pair of upper and lower upper and lower rails. The grooved rail portions 9a and 9b, and the slit 10 that opens outward near the upper grooved rail portion 9a, the lower first guide rail 6B includes the grooved rail portion 11 that opens downward, Lower second guide rail 3B
Has a groove-shaped rail portion 12 that opens upward.
The lower first and second guide rails 6B and 3B integrated vertically are provided with an outward slit 13 in the middle thereof.
It has.

The first door 1 includes a pair of upper and lower traveling units 1.
It is supported by the first guide rails 6A, 6B via 4A, 14B. The upper traveling unit 14A includes the first door 1
The two wheel units 15a and 15b are mounted on the inner side near both ends in the traveling direction of the vehicle, and each wheel unit 15a and 15b has the same structure. A supporting horizontal shaft wheel 16 that fits and rolls on a horizontal rail surface 7a, which is a bottom surface thereof, and a vertical shaft wheel 17 that is loosely fitted and rolled in the grooved rail portion 8 of the upper first guide rail 6A. Have. The lower traveling unit 14B is composed of two wheel units 18a and 18b attached inside the vicinity of both ends of the first door body 1 in the traveling direction.
Reference numerals 18b have the same structure, and each has a vertical shaft wheel 19 that is loosely fitted and rolls in the grooved rail portion 11 of the lower first guide rail 6B.

Upper traveling unit 4 supporting second door 2
A is composed of two trolleys 20a and 20b and a connecting member 21 for connecting and integrating the two trolleys, and each trolley 20a and 20b is a pair of upper and lower grooved rail portions 9a and 9b of the upper second guide rail 3A. And a pair of upper and lower vertical shaft wheels 22a and 22b which are loosely fitted on the lower surface and a horizontal rail surface 9c which is a lower surface thereof which is loosely fitted on the lower grooved rail portion 9b.
And a supporting horizontal shaft wheel 23 which rolls on the upper side. The lower traveling unit 4B includes two trolleys 24a,
24b and a connecting member 25 for connecting and integrating the two together.
Each of the trolleys 24a and 24b is provided with a vertical shaft wheel 26 that is loosely fitted and rolls on the grooved rail portion 12 of the lower second guide rail 3B.

The parallel links 5a and 5b are provided for the upper and lower traveling units 4A and 4B, respectively.
Links 5a, 5 connecting the upper end of the second door 2
b is each trolley 20a, 20 of the upper traveling unit 4A.
b, and a bearing unit 28 attached to both ends in the running direction at the upper end of the second door body 2
Both ends are supported by a link support shaft 29 which is vertically supported by a and 31a. The link support shaft 27 on each trolley 20a, 20b side is a pair of upper and lower vertical shaft wheels 22.
The shafts a and 22b are also used. Lower traveling unit 4
B and the parallel link 5a connecting the lower end of the second door 2
5b is each trolley 24a, 2 of the lower traveling unit 4B.
4b, a link support shaft 30 vertically supported by the second door 2
Bearing units 2 mounted at both ends in the running direction at the lower end of the
Both ends are supported by a link support shaft 32 vertically supported by 8b and 31b. In addition, each trolley 24a, 24b
The link support shaft 30 on the side also serves as a support shaft for the vertical shaft wheel 26.

As shown in FIG. 2, in this embodiment, the connecting member 21 of the upper traveling unit 4A and the parallel link 5a on one side are provided.
And a tension coil spring 33 is interposed therebetween.
The spring 33 moves the second door body 2 to the outside position (FIG. 1B).
(The position indicated by P2 in FIG. 1A) to return to the inner position (the position indicated by P1 in FIG. 1A). Therefore, each trolley 20a, 20b, 24a, 24b and the parallel link 5
a, 5b, between the parallel links 5a, 5b and the bearing units 28a, 28b, 31a, 31b, or between the traveling units 4A, 4B and the second door body 2. Alternatively, depending on the installation location, a torsion spring may be used instead of a tension coil spring.

At four inner corners of the second door 2, vertical shaft rollers 34a, 34b and 35a, 35b are pivotally supported.
The upper two vertical shaft rollers 34a, 35a are connected to the bearing units 28a, 3 that support the upper parallel links 5a, 5b.
1a, the lower two vertical shaft rollers 34b, 3
5b is supported by bearing units 28b and 31b that support the lower parallel links 5a and 5b. Thus, the second door body 2 is urged inward by the urging force of the spring 33 so as to approach the second guide rails 3A and 3B.
The upper two vertical axis rollers 34a and 35a abut on the surface 3a of the upper second guide rail 3A, and the lower two vertical axis rollers 34b and 35b abut on the surface 6a of the lower first guide rail 6B. Thereby, the second door body 2 is held at the inner position P1 where the surface is flush with the first door body 1.

On the other hand, strip-shaped cover members 36a, 36b and 37a, 37b are attached to the upper and lower ends of the first door 1 and the second door 2 over the entire length in the traveling direction. These band-shaped cover members 36a to 37b are for protecting the upper and lower ends of the wooden doors 1 and 2 and for obtaining a design effect. The two vertical axis rollers 34a, 35a are pivotally supported at the same level as the upper band-shaped cover members 36a, 37a, and the two lower vertical axis rollers 34b, 35b are at the same level as the lower band-shaped cover members 36b, 37b. It is pivoted.

Further, as shown in FIGS. 1A, 2 and 3, the inner position P at which the second door 2 overlaps the traveling path of the first door 1.
1, when the opening of the storage space is closed by the two doors 1 and 2, the end 1a of the first door 1 adjacent to the end of the second door 2 is oblique in cross-sectional shape. An end 2a of the second door body 2 adjacent to the wedge-shaped end 1a is formed in a wedge shape having an obliquely inwardly inclined surface in a cross-sectional shape. The parts 1a and 2a are configured to overlap each other with a small gap therebetween. And the band-shaped cover members 36a to 37 of the doors 1 and 2
The end of b is also bent along the wedge-shaped ends 1a and 2a,
Due to the ends of the upper and lower belt-shaped cover members 36a, 36b overlapping the wedge-shaped end 1a of the first door 1, the inclined guide surfaces 38a, 3b.
8b are formed.

The connecting member 25 for connecting the two trolleys 24a and 24b of the lower traveling unit 4B is constituted by a rod whose both ends are screwed to the trolleys 24a and 24b. Thus, both trolleys 24
a connecting member 2 capable of adjusting the distance between a and 24b
5, the parallel links 5a and 5b can be adjusted so as to be completely parallel, so that the two trolleys 20a and 20b of the upper traveling unit 4A are also connected by such a connecting member. desirable.

In the sliding door device constructed as described above, as shown in FIGS. 1A, 2 and 3,
Is located at the inner position P1 overlapping the traveling route of the first door body 1, and in a state where the opening of the storage space is closed by the two door bodies 1 and 2, the surfaces of the two door bodies 1 and 2 are flush. It is continuous.
At this time, the respective vertical shaft rollers 34a to 35b of the second door body 2 which are drawn inward by the spring 33 are in contact with the surfaces 3a, 6a of the guide rails 3A, 6B,
The position (posture) of the second door 2 is regulated.

When the first door 1 is opened toward the second door 2 as shown in FIG. 1B from the above closed state, the first door 1 is brought into a pair of upper and lower first guide rails 6A, 6B. And the traveling units 14A and 14B engage with each other, thereby linearly moving along a traveling path parallel to the first guide rails 6A and 6B. The pair of upper and lower inclined guide surfaces 38a, 38b at the wedge-shaped end 1a of the first door 1 is adjacent to the wedge-shaped end 2 of the second door 2, as shown in FIGS.
The second door body 2 is pushed outward through the pair of upper and lower vertical shaft rollers 34a and 34b in FIG. At this time, the second door body 2 is supported by the traveling units 4A, 4B engaged with the second guide rails 3A, 3B via the parallel links 5a, 5b, and therefore, as shown in FIG. The two-door body 2 has a rear end (opposite to the wedge-shaped end 2a) 2
b slides forward with respect to the side surface 40a of the side wall 40, and the traveling units 4A and 4B slightly move in the opening direction of the first door body 1 while moving the first door body 1 by a small amount. This translates linearly outside the travel path. Of course, as shown by phantom lines in FIG.
When the stopper 41 is provided for at least one of the first door B and the second door 2, the second door body 2 does not slide with the rear end 2 b (the side opposite to the wedge-shaped end 2 a) and the side wall 40 without sliding. The door 1 is translated outward while slightly moving in the direction opposite to the opening direction of the door 1.

As described above, the first door 1 is connected to the second door 2
While pushing out from the inside position P1 to the outside position P2, enters the inside of the second door body 2. At this time, the first door 2
The biasing force of the spring 33 is applied to the vertical shaft roller 3 of the second door body 2.
4a, 34b, the first guide rails 6A, 6B.
B, but the first guide rails 6A, 6A
B and one side surface of the grooved rail portions 8 and 11 and the traveling unit 14
A and 14B contact rolling with the vertical axis wheels 17 and 19, and a pair of upper and lower band-shaped cover members 36a and 36a of the first door body 1.
6b and a pair of upper and lower vertical shaft rollers 3 on the second door body 2 side
Due to the contact rolling with 4a and 34b, the opening resistance of the first door 1 is relatively small, and the first door 1 can be smoothly opened.

As shown in FIG. 1C, when the first door 1 opens to the end of the traveling path, the first door 1 closes the opening of the storage space closed by the two doors 1 and 2. About half of the area that has been opened is opened. From this state, the first door 1
1A to the original position shown in FIG. 1A, the first door 1 is closed so as to be pulled out from the inside of the second door 2 while stopping the movement of the second door 2 integrally. You can do it.
When the first door body 1 escapes from the inside of the second door body 2, the second door body 2 is moved in parallel from the outer position P2 to the inner position P1 by the urging force of the spring 33, and the opening of the storage space is closed. The doors 1 and 2 are closed again by the two doors 1 and 2 arranged in a flush state.

When the side closed by the second door 2 is opened, the second door 2 is moved to the side where the first door 1 is located. In this case, FIGS. As shown in FIG. 3, a pair of upper and lower vertical shaft rollers 34a and 34b at the wedge-shaped end 2a of the second door 2 ride on a pair of upper and lower inclined guide surfaces 38a and 38b at the wedge-shaped end 1a of the first door 1. As a result, the second door body 2 opens while moving in parallel to the outside of the first door body 1.

When the second door 2 is moved to the end of the traveling path overlapping the outside of the first door 1 as shown in FIG. 1D, the storage space closed by the two doors 1 and 2 is opened. In the opening, a substantially half area closed by the second door body 2 is opened. During the opening movement of the second door 2, the vertical axis rollers 34a, 34b roll on the surfaces of the pair of upper and lower band-shaped cover members 36a, 36b of the first door 1. When closing the second door 2 from the above state to the original position shown in FIG. 1A, the second door 2 is moved to the first door 1 while the first door 1 is stopped from moving integrally. What is necessary is just to make it close so that it may separate from. When the second door body 2 moves away from the outside position of the first door body 1, the second door body 2 is moved in parallel from the outside position P2 to the inside position P1 by the urging force of the spring 33, and the opening of the storage space becomes the front surface. Are closed again by the two doors 1 and 2 which are arranged in a flush state.

The inclined guide surface 38 of the first door 1 is selected from the vertical shaft rollers 34a to 35b provided on the second door 2.
a, 38b, a pair of upper and lower vertical shaft rollers 35a, 35 provided at the rear end 2b opposite to the wedge-shaped end 2a adjacent to the wedge-shaped ends 2a.
b is not essential in the present invention and may be omitted. Further, these vertical shaft rollers 34a to 35b are connected to bearing units 28a, 28b for the parallel links 5a, 5b.
31a and 31b, these bearing units 28
a, 28b, 31a, and 31b may be used to support the bracket at another location using a different bracket.

The inclined guide surfaces 38a, 3 provided on the first door 1
8b are formed using the surfaces of a pair of upper and lower band-shaped cover members 36a and 36b, so that the vertical axis rollers 34a and 34b
a, 36b, or when such band-shaped cover members 36a, 36b are not attached, the inclined surface continuous between the upper and lower ends of the wedge-shaped end 1a of the first door body 1 is formed. It can be used as it is. Of course, in these cases, the vertical axis rollers 34a, 34b
Rolling comes into direct contact with the surface of the first door body 1.

Further, since the height of each of the doors 1 and 2 is low and light, there is no danger of buckling deformation even when supported at the lower end side. And the supporting horizontal shaft wheel 23 supported by the upper traveling unit 4A of the second door body 2.
May be supported by the lower traveling units 14B and 4B.
In this case, as shown in FIG. 4, the horizontal rail surface on which the supporting horizontal shaft wheel 16 supported by the lower traveling unit 14B of the first door body 1 rolls is the upper end outer surface of the lower first guide rail 6B. 6b. With this configuration, only the groove-shaped rail portion 7 of the upper first guide rail 6A needs to be integrally formed below the upper second guide rail 3A, so that the overall height of the upper guide rail can be reduced. Can be. Of course, both the upper first and second guide rails 6
A, 3A and lower first and second guide rails 6B, 3B
B may be integrated into two horizontal rows in the left and right directions, or four separately configured first and second guide rails may be arranged in parallel in the vertical and horizontal directions.

As shown in FIG. 5A, when the second door 2 is at the inside position P1, the parallel links 5a and 5b are connected to the traveling units 4A and 4B by the link support shafts 29 and 32 on the second door 2 side.
It can also be arranged so as to be inclined in a direction located on the side where the first door body 1 is located with respect to the side link support shafts 27 and 30.
In this case, when the second door body 2 is pushed outward by the first door body 1 that opens, the traveling units 4A and 4B slightly move in the direction opposite to the opening direction of the first door body 1. Become.

In the above embodiment, the opening of the storage space is opened and closed by the two sheets of the first door 1 and the second door 2, but as shown in FIG. The opening may be closed by two second doors 2A and 2B located at both ends of the portion and one first door 1 located in the middle. In this case, the two second doors 2A and 2B can be supported on the common second guide rails 3A and 3B via the traveling units 4A and 4B, respectively, and the portion closed by one second door 2A. When the second door 2B is opened, the second door 2A is moved to a position overlapping the outside of the first door 1 at the center, and when the part closed by the other second door 2B is opened, the second door 2B is opened. Is opened to a position overlapping the outside of the first door 1 at the center, and when the part closed by the first door 1 in the middle is opened, the first door 1 is moved to either the second door 2A or 2B. It will be moved to the position where it overlaps the inside of that. Therefore, the first guide rails 6A and 6B (not shown) supporting the first door 1 may be provided over the entire width of the opening of the storage space, or may overlap the second door 2B or 2A on one side. It may be installed only in the area excluding the area.

As shown in FIG. 5C, two first doors 1A and 1B located at both ends of the opening of the storage space and one second door 2 located in the middle between the first doors 1A and 1B have the opening. May be closed. In this case, both first doors 1
Parts A and 1B can be supported on common first guide rails 6A and 6B (not shown) via traveling units 14A and 14B (not shown), respectively, and are closed by one of the first doors 1A. When the first door 1A is opened, the first door 1A is moved to a position overlapping the inside of the second door 2 at the center, and when the part closed by the other first door 1B is opened, the first door 1B is opened. Is opened to a position overlapping the inside of the second door body 2 at the center, and when the part closed by the second door body 2 is opened, the second door body 2 is moved to either the first door body 1A or 1B. It will be moved to a position that overlaps the outside of the vehicle. Therefore, the second guide rails 3A, 3B supporting the second door body 2
May be installed over the entire width of the opening of the storage space, or may be installed only in an area excluding an area overlapping the first door 1B or 1A on one side.

In the embodiment shown in FIGS. 1 to 4, when the stopper 41 shown by the phantom line in FIG. 2 is not used, or in the embodiment shown in FIG. 5A, or in the embodiment shown in FIG. In the case where the parallel links 5a and 5b of 2A and 2B are inclined in the same direction as in the embodiment shown in FIGS.
The rear end portion 2b of the second door body 2, 2A, 2B (hereinafter described as an example of the second door body 2) which is pushed outward by the first door body 1 and moves linearly in parallel is a side surface of the side wall 40. 40
a comes into sliding contact with a. Since the frictional resistance at this time is a factor that increases the opening resistance of the first door 1, as shown in FIG.
By supporting the vertical shaft roller 42 that abuts and rolls at 0a, it is possible to reduce the frictional resistance when the second door body 2 is pushed outward by the first door body 1 and linearly translates. . The vertical axis roller 42 can also be used as the vertical axis rollers 35a and 35b on the rear end 2b side of the second door body 2 in the previous embodiment.

When the first door 1 is moved to a position overlapping the inside of the second door 2 and then closed to the original position, when the first door 1 is closed to the original position, the second door overlapping the outside is opened. It is necessary to stop the body 2 from moving integrally with the first door body 1 by hand, but in order to save this trouble, as shown in FIGS. A catch means 43 that allows the second door body 2 to be pushed outward by the first door body 1 and to be translated in a straight line can be disposed on the portion 2b and the side surface 40a of the side wall 40. As the catch means 43,
For example, as shown in the figure, a female catch body 44 made of a leaf spring attached to the side surface 40a of the side wall 40, and a male fitting piece 45 attached to the rear end 2b of the second door body 2. Is available.

In this case, the female catch body 44 is provided with the male fitting piece 4 during the entire linear movement of the second door 2.
5 may have a length capable of elastically gripping, but when the second door body 2 at the open limit position is closed to the original position as shown in FIG. Since the second door 2 moves obliquely inward along the inclined guide surfaces 38a, 38b of the first door 1, the male fitting piece 45 does not interfere with the catch body 44 at this time. It is desirable that the male fitting piece 45 be fitted into the catch body 44 when the second door body 2 at the inner position P1 moves to the outside in a linearly parallel manner to some extent. . Note that the female catch body 44 made of a leaf spring may be attached to the rear end 2b of the second door 2, and the long male fitting piece 45 may be attached to the side wall 40. Further, the catch means 43 and the vertical axis roller 42 shown in FIG.
Can also be used in combination.

[0037]

The sliding door device of the present invention can be implemented as described above. According to the device of the present invention, the traveling path of the first door body (1) is controlled by the spring (33). The second door body (2) urged to the inside position (P1) side that overlaps
When pushing the first door body (1) into the inside of the second door body (2) while pushing out the outside, that is, when opening the first door body (1), the first door body (1) and the first The pressing of the ends that abut each other with the second door body (2) is performed by a pair of upper and lower vertical shaft rollers of the inclined guide surfaces (38a, 38b) of the first door body (1) and the second door body (2).
(34a, 34b), without the sliding movement of the fixed surfaces, and both doors after the first door (1) enters the inside of the second door (2) Also at the time of relative movement between the bodies (1, 2), the pair of upper and lower vertical shaft rollers (34a, 34b) of the second door body (2) roll on the surface of the first door body (1), There should be no sliding movement between the fixed surfaces.
The first door body (1) which receives the urging force of (3) inward via the vertical shaft rollers (34a, 34b) is provided with a groove-shaped rail portion (8) of a pair of upper and lower first guide rails (6A, 6B). , 11) and the vertical axis wheel (1) of a pair of upper and lower traveling units (14A, 14B) of the first door body (1).
7, 19), the first door is pushed inside the second door body (2) while pushing out the second door body (2) while the position (posture) is maintained in a position (posture). The opening operation of the first door body (1) for entering the body (1) can be performed lightly and smoothly.

In addition to opening the second door body (2) while moving it in parallel to the outside of the first door body (1), the second door body (2) Each second guide rail
Position (posture) is maintained by fitting the grooved rails (9a, 9b, 12) of (3A, 3B) with the vertical axis wheels (22a, 22b, 26) of a pair of upper and lower traveling units (4A, 4B) Opening in this state allows light and smooth operation.

In particular, according to the structure of the second aspect, the inclined guide on the side of the first door (1) acting on the pair of upper and lower vertical shaft rollers (34a, 34b) of the second door (2). Surface (38a, 38b) and the first door on which the vertical axis rollers (38a, 38b) abut and roll when the first door body (1) enters and runs inside the second door body (2). A belt-shaped cover member attached so that the surface of the body (1) is continuous with the upper and lower ends of the first door body (1) over the entire length.
(36a, 36b), even the band-shaped cover member (36a, 36b) is made of, for example, a metal material so that the rolling of the vertical shaft rollers (38a, 38b) is performed lightly and smoothly. Irrespective of the surface material and design of the one door (1), the opening movement of the first door (1) can be made lighter and smoother. Furthermore, a vertical axis roller (38a, 3a) is placed on the surface of the first door (1).
The rolling trace of 8b) is not attached.

According to the structure of the third aspect, the second door body
No special bracket is required for mounting the pair of upper and lower vertical shaft rollers (34a, 34b) in (2), and the number of parts mounting work is reduced. According to the configuration of claim 4, the second door body
When (2) is at the inside position (P1), each of the vertical axis rollers (34a to 35b) at the four inside corners of the second door 2 is guided by the guide rail (3A, 6).
The position (posture) is determined by contacting the surface (3a, 6a) of B)
The storage space opening is closed by the first and second doors (1, 2) without providing a stopper that regulates the swing range of the parallel link (5a, 5b) that supports the second door (2). When both doors are
The surface of (1,2) can be kept flush.

According to the structure of the fifth aspect, the second door body
When the second door (2) is at the inner position (P1), the parallel link (5a, 5b) supporting (2) is connected to the link support shaft on the second door (2).
(29,32) is the link support shaft (27,3
The distance between the two parallel links (5a, 5b) in the door traveling direction can be made wider than in the case where the first parallel link (5a, 5b) is inclined in the direction located on the side where the first door body (1) is located rather than (0). Even a large and heavy second door (2) can be stably suspended.

Further, according to the structure of the sixth aspect, when the first door body (1) enters the inside of the second door body (2), the second door body (2) is linearly moved outside. Even if the configuration is such that the vertical axis roller (42) of the rear end portion (2b) of the second door body is
(40a), the linear movement of the second door body (2) is performed lightly and smoothly. In other words, the second door (2)
The opening movement of the first door body (1) toward the inside of the vehicle is lighter and smoother.

According to the configuration of the seventh aspect, at least the second door (2) at the outer position (P2) is connected to the side wall (4).
Since the catch means (43) provides resistance to movement in the direction away from (0), the first door (1) that has entered the inside of the second door (2) is closed when the door is pulled out. Double door
(2) There is no need to manually stop the movement of the two in the same direction, and the handling becomes easy.

[Brief description of the drawings]

FIGS. 1A to 1C are schematic plan views showing a state of an opening operation of a first door body, and FIG. 1D is a schematic plan view showing a state of an opening operation of a second door body.

FIG. 2 is a cross-sectional plan view showing a support guide configuration on an upper side of each door body.

FIG. 3 is a cross-sectional plan view showing a support guide configuration on a lower side of each door body.

FIG. 4 is a longitudinal sectional side view in a state where a first door body is opened.

FIGS. 5A to 5C are schematic plan views showing different embodiments.

FIG. 6 is a plan view of a main part showing another embodiment relating to the second door body.

FIG. 7 is a plan view of a main part showing still another embodiment relating to the second door body.

FIG. 8 is a vertical sectional front view showing details of a catch means shown in FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 First door 1a Wedge-shaped end of first door 1A First door 1B First door 2 Second door 2a Wedge-shaped end of second door 2b Rear end of second door 2A Second Door 2B Second door 3A Upper second guide rail 3B Lower second guide rail 4A Upper traveling unit of second door 4B Lower traveling unit of second door 5a Parallel link 5b Parallel link 6A First door Upper guide rail 6B Lower guide rail of the first door body 7a Horizontal rail surface 8 Groove rail section 9a Groove rail section 9b Groove rail section 11 Groove rail section 12 Groove rail section 14A Upper side of first door body Traveling unit 14B Lower traveling unit of the first door body 16 Supporting horizontal axis wheel 17 Vertical axis wheel 19 Vertical axis wheel 22a Vertical axis wheel 22b Vertical axis wheel 23 Supporting horizontal axis wheel 26 Vertical axis wheel Le 27 Link shaft 28a Link bearing unit 28b Link bearing unit 29 Link shaft 30 Link shaft 31a Link bearing unit 31b Link bearing unit 32 Link shaft 33 Tension coil spring 34a Vertical shaft roller 34b Vertical shaft roller 35a Vertical shaft roller 35b Vertical axis roller 36a Band-shaped cover member 36b Band-shaped cover member 37a Band-shaped cover member 37b Band-shaped cover member 38a Inclined guide surface 38b Inclined guide surface 40 Side wall 40a Side wall surface 41 Running unit stopper 42 Vertical axis roller 43 Catch means 44 Plate spring female Shaped catch body 45 Male mating piece

Claims (7)

(57) [Claims] A first door (1), a second door (2), a pair of upper and lower first guide rails (6A, 6B), and a pair of upper and lower second guide rails (3A, 3B). The first door body (1) is a pair of upper and lower first guide rails (6A, 6B).
A traveling unit (14A, 14B) that engages with each of them, and an inclined guide surface (38a, 38b) provided at one end in the moving direction, and each traveling unit (14A, 14B) includes upper and lower first guide rails. (6A,
6B) vertical shaft wheel (1
7,19) and either the upper or lower traveling unit (1
4A) is the horizontal rail surface of the corresponding first guide rail (6A)
(7a) It has a supporting horizontal axis wheel (16) that rolls on, and the second door body (2) is a pair of upper and lower second guide rails (3A, 3B).
Traveling unit (4A, 4B) engaging with each of the
(5a, 5b), a spring (33), and a pair of upper and lower vertical shaft rollers (34a, 34b), and each traveling unit (4A, 4B) is provided with a pair of upper and lower second guide rails (3A, 3B). Channel rail (9a, 9b, 1
2) has a vertical axis wheel (22a, 22b, 26), and one of the upper and lower traveling units (4A) rolls on the horizontal rail surface (9c) of the corresponding second guide rail (3A). It has a supporting horizontal shaft wheel (23) that moves, and the parallel links (5a, 5b)
The upper and lower traveling units (4A, 4B) and the second door body (2) are connected, and the second door body (2) is connected to the inner position (P1) overlapping the traveling path of the first door body (1). The first door body (1) can be moved in parallel with the outside position (P2) with respect to the travel path, and the spring (33)
Urges the second door body (2) to return to the inner position (P1), and the pair of upper and lower vertical shaft rollers (34a, 34b)
When (2) is at the inner position (P1), the first door body (1) is pivotally supported at the upper and lower inner corners of the end adjacent to the inclined guide surface (38a, 38b) of the first door body (1), When the body (1) opens toward the second door body (2) located at the inner position (P1), the vertical guide rollers (34a, 34b) of the second door body (2) move on the inclined guide surfaces (38a, 38b). ) To move the second door body (2) in parallel to the outer position (P2) by pushing it out, and the first door body (1) entering the inside of the second door body (2) has a first door body (1). A sliding door device in which the vertical shaft rollers (34a, 34b) of the double door body (2) abut. 2. A belt-like cover member (36a, 3a) provided at both upper and lower ends of the first door body (1) so as to be continuous over its entire length.
6b), and the inclined guide surfaces (38a, 38b) are formed at the ends of the upper and lower belt-shaped cover members (36a, 36b), and a pair of upper and lower vertical shaft rollers (34a, 34a, 34b)
The sliding door device according to claim 1, wherein the sliding door device rolls on the surfaces of the upper and lower belt-shaped cover members (36a, 36b) of the first door body (1). 3. A pair of upper and lower vertical shaft rollers (3) of the second door (2).
3. The sliding door device according to claim 1, wherein the sliding door device is supported by a parallel link bearing unit mounted on the second door body. 4. 4. A vertical shaft roller (34a, 34) is provided on the second door (2).
A pair of upper and lower vertical shaft rollers (35a, 35b) are also supported inside the rear end (2b) opposite to the side with b), and the second door body (2)
Is at the inside position (P1), each of the vertical axis rollers (34a to 35b) at the four inside corners of the second door 2 is guided by the guide rail (3A,
The sliding door device according to any one of claims 1 to 3, which contacts the surface (3a, 6a) of the sliding door device (6B). The parallel link (5a, 5b) has a link support shaft (27, 30) on the traveling unit (4A, 4B) side when the second door body (2) is at the inner position (P1). Link shaft (29,32) on double door (2) side
The sliding door device according to any one of claims 1 to 4, wherein the sliding door device is inclined in a direction located on a side where the first door body (1) is located. 6. A vertical shaft roller (34a, 34a) is provided on the second door (2).
b) Side wall surface adjacent to the rear end (2b) opposite the side with
The sliding door device according to any one of claims 1 to 5, wherein a vertical shaft roller (42) that rolls in contact with the shaft (40a) is rotatably supported. 7. A catch means (43), which is provided at a rear end (2b) of the second door body (2) opposite to the side where the vertical shaft rollers (34a, 34b) are provided. ) And adjacent side wall (40)
And at least the second door body at the outer position (P2)
The sliding door device according to any one of claims 1 to 6, wherein (2) provides resistance to movement in a direction away from the side wall (40).