JPH08128254A - Support device for door body - Google Patents

Abstract

PURPOSE: To facilitate the setting work of a door body supported by a traveling unit through a parallel link, and dispense with the ensuring of large spaces above and under the door body. CONSTITUTION: Bearing units 31a, 31b mounted on four corners on the inside of a door body 2 have bodies 40, bearing members 42 capable of being fitted to and separated from the recessed parts 41 of the bodies 40 only in the right- angled direction to the door body inside surface 2b, locking means 43 for preventing the dropping-out of the bearing members 42, and vertical link support shafts 29, 32 supported by the bearing members 42. Each link support shaft 29, 32 supports parallel links 5a, 5b in one-side ends vertically protruded from both vertical ends of the door body 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door used as an opening / closing door for a built-in storage unit or as an opening / closing door for various types of storage furniture, and in particular, the surfaces of the doors are arranged flush when closed. The present invention relates to a supporting device of a door body of a sliding door which is supported by parallel links.

[0002]

2. Description of the Related Art Various types of sliding doors are known in which the surfaces of the doors are flush with each other when they are closed, but all of them are very complicated in structure, especially guide rail structure. It wasn't practical. In order to solve such a problem, the fairness 1-2206
As described in Japanese Patent No. 8, the first door body is supported on the first guide rail so that only the right and left linear movements are possible, and the other second door body is A sliding door was conceived in which a traveling unit supported by two guide rails so that only left and right linear movements were possible was supported so as to be able to move in parallel inward and outward via parallel links.

In this sliding door using parallel links, the outer ends of the parallel links are pivotally supported by vertical link support shafts on the outside of the upper and lower ends of the door body supported by the parallel links. In the configuration described in Japanese Patent Laid-Open No. 1-22068, the upper traveling unit is attached to the upper end side of the door body via a parallel link, and the upper traveling unit is fitted and supported from above on the upper guide rail. After that, the lower traveling unit engaged with the lower guide rail and the lower end of the door body must be connected by a parallel link.

Therefore, it is necessary to secure a wide space above the door body, which has a vertical height larger than the space required to simply horizontally swing the upper parallel link. It was a problem when incorporating a sliding door. Also, when setting the door body, the door body is handled with the upper traveling unit attached to the upper end side of the door body via the parallel link, so the parallel link and the upper traveling unit contact with other objects. There is also a problem that it is difficult to handle because it is highly likely to be deformed or damaged. The present invention aims to solve the above-mentioned conventional problems.

[0005]

The structural features of the present invention for achieving the above-mentioned object are shown with reference numerals of an embodiment described later, and are related to a pair of upper and lower guide rails (3A, 3B). The parallel links (5a, 5a,
5b) is a supporting device for the door body whose upper and lower ends are supported by four bearing units (28a, 28b, 31a, 31b), and each bearing unit (28a, 28b, 31a, 31b) is , The main body (40) mounted near the inner four corners of the door body (2), and the main body (40)
The bearing member (42) that can be freely inserted into and removed from the recess (41) of the door in the direction perpendicular to the inner surface (2b) of the door, and the bearing member (42) is locked at the position where it is fitted in the recess (41) of the main body. The locking means (43) for preventing slippage and the vertical link support shafts (29, 32) supported by the bearing member (42) are provided, and each link support shaft (29, 32) is attached to the door body (2).
It is characterized in that the parallel links (5a, 5b) are supported at one end projecting in the vertical direction from both upper and lower ends of the.

In carrying out the present invention, when the upper traveling unit (4A) is a door-type hanging type sliding door supporting device having a supporting horizontal axis wheel (23), the upper bearing unit (28a) , 31a) has a link support shaft for the bearing member (42).
A height adjusting means (48) for adjusting the position of the (29) in the axial direction thereof can be provided.

The locking means (43) for preventing the bearing unit (28a, 28b, 31a, 31b) from coming off is provided continuously from the left and right sides of the bearing member (42) so that the free end portion is the main body recess (41). A pair of left and right elastic locking pieces (46) projecting outwardly from the main body recessed part (41), and a pair of left and right elastic locking pieces (45) formed on both left and right sides of the main body recessed part (41). Attach the bearing member (42) to the stopper (46) in the main body recess.
It is possible to provide a locking portion (47) which, when fitted in the (41), engages with the locked portion for locking (45) and locks the bearing member (42).

Further, as described above, the upper traveling unit (4
If (A) is a device for supporting a sliding door of a suspended-door type equipped with a supporting horizontal axis wheel (23), the main unit recess (41) and the bearing member (42) of the upper bearing unit (28a, 31a) ) Can be provided with a vertical fitting portion (50) in which the main body (40) descends and fits into each other with respect to the bearing member (42) fitted in the main body recessed portion (41).

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the overall structure and operation of a sliding door device constructed by using the supporting device of the present invention will be described with reference to FIGS. 1 to 4. In FIG. , A first guide rail (not shown) parallel to the pair of upper and lower linear second guide rails 3A and 3B that support and guide the second door body 2
It is supported for reciprocating movement. The second door body 2 is supported by a pair of upper and lower traveling units 4A and 4B engaging with the second guide rails 3A and 3B via parallel links 5a and 5b, and an inner position overlapping the traveling path of the first door body 1. P1 (Fig. 1
A)) and the outer position P of the first door body 1 with respect to the traveling route.
It is possible to move in parallel with the two.

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

The upper first guide rail 6A has an outwardly opening grooved rail portion 7 located directly below the upper second guide rail 3A and a downwardly opening grooved rail portion 8 located directly below the upper rail. The upper second guide rail 3A includes
A pair of upper and lower groove-shaped rail portions 9a and 9b facing each other vertically
And a slit 10 that opens outward near the upper groove-shaped rail portion 9a and has a substantially C-shaped cross section. The lower first guide rail 6B includes a groove-shaped rail portion 11 that opens downward, and the lower second guide rail 3B includes a groove-shaped rail portion 12 that opens upward. Both of these guide rails 6B and 3B are integrally provided in a two-tier structure so as to form an outward slit 13 in the middle thereof,
One guide rail having a substantially C-shaped cross section is formed.

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

The upper traveling unit 4 which supports the second door body 2.
A is composed of two trolleys 20a and 20b and a connecting member 21 which connects and integrates both of them, and each trolley 20a and 20b is a pair of upper and lower groove-shaped rail portions 9a and 9b of the upper second guide rail 3A. A pair of upper and lower vertical shaft wheels 22a and 22b which are loosely fitted to and rolled in, and a horizontal rail surface 9c which is a bottom surface of the lower grooved rail portion 9b.
And a supporting horizontal axis wheel 23 that rolls up. The lower traveling unit 4B includes two trolleys 24a,
24b and a connecting member 25 for connecting and integrating both of them
Each of the trolleys 24a, 24b is provided with a vertical shaft wheel 26 which is loosely fitted into the groove-shaped rail portion 12 of the lower second guide rail 3B and rolls.

The parallel links 5a and 5b are provided for the upper and lower traveling units 4A and 4B, respectively.
And parallel links 5a, 5 connecting the upper end of the second door body 2 with
b is each trolley 20a, 20 of the upper traveling unit 4A.
The link support shaft 27 that is vertically supported by b and the bearing unit 28 that is attached to both ends in the traveling 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 the side of each trolley 20a, 20b has a lower end portion protruding downward from the trolleys 20a, 20b and an upper end portion protruding above the parallel links 5a, 5b above the trolleys 20a, 20b. The vertical shaft wheels 22a and 22b are supported. The parallel links 5a and 5b connecting the lower traveling unit 4B and the lower end portion of the second door body 2 have link support shafts 30 vertically supported by the trolleys 24a and 24b of the lower traveling unit 4B.
Both ends are supported by a link support shaft 32 which is vertically supported by bearing units 28b and 31b mounted at both ends in the traveling direction at the lower end of the second door body 2. The link support shafts 30 on the trolleys 24a, 24b side also serve as support shafts for the vertical shaft wheels 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 connected.
A tension coil spring 33 is interposed between the and.
This spring 33 positions the second door body 2 to the outside position (see FIG. 1B).
(The position indicated by P2 in FIG. 1) is returned 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, and the like. It is possible to use a torsion spring instead of the tension coil spring depending on the installation place.

Vertical shaft rollers 34a, 34b and 35a, 35b are pivotally supported at the four inner corners of the second door body 2.
The upper two vertical shaft rollers 34a, 35a are provided with bearing units 28a, 3 which support the upper parallel links 5a, 5b.
1a and two lower vertical shaft rollers 34b, 3
5b is pivotally supported by bearing units 28b and 31b that pivotally support the lower parallel links 5a and 5b. Then, the second door body 2 is biased inward by the biasing force of the spring 33 so as to approach the second guide rails 3A and 3B,
The upper two vertical shaft rollers 34a, 35a contact the surface 3a of the upper second guide rail 3A, and the lower two vertical shaft rollers 34b, 35b contact the surface 6a of the lower first guide rail 6B. Thus, 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 which are continuous over the entire length in the running direction are attached to the upper and lower ends of the first door body 1 and the second door body 2, respectively. These strip-shaped cover members 36a to 37b are provided to protect the upper and lower edges of the wooden door bodies 1 and 2 and to obtain a design effect. The two vertical shaft rollers 34a, 35a are pivotally supported at the same level as the upper strip-shaped cover members 36a, 37a, and the two lower vertical shaft rollers 34b, 35b are at the same level as the lower strip-shaped cover members 36b, 37b. It is pivotally supported.

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

In the sliding door device constructed as described above, the second door body 2 as shown in FIGS. 1A, 2 and 3.
Is at the inner position P1 overlapping the traveling path of the first door body 1 and the opening of the storage space is closed by both door bodies 1 and 2, the surfaces of both door bodies 1 and 2 are flush with each other. It is continuous.
When the first door body 1 is opened toward the second door body 2 as shown in FIG. 1B from this closed state, the pair of upper and lower inclined guide portions 38a, 38b at the wedge-shaped end portion 1a of the first door body 1 is moved. ,
As shown in FIGS. 2 and 3, the second door body 2 is pushed out through the pair of upper and lower vertical shaft rollers 34a and 34b of the adjacent second door bodies 2. Therefore, as shown in FIG. 1B, the second door body 2 supported by the parallel links 5a and 5b moves in parallel to the outside of the traveling path of the first door body 1.

As shown in FIG. 1C, when the first door body 1 is opened to the end of the traveling path, the first door body 1 closes the opening of the storage space closed by both door bodies 1 and 2. Almost half the area that had been opened is opened. From the state concerned, the first door body 1
1A to the original position shown in FIG. 1A, the second door body 2 is closed by pulling the first door body 1 from the inside of the second door body 2 while manually stopping the movement of the second door body 2. You can do it.
When the first door body 1 escapes from the inside of the second door body 2, the urging force of the spring 33 causes the second door body 2 to move in parallel from the outer position P2 to the inner position P1, and the opening of the storage space is It is closed again by both door bodies 1 and 2 which are connected in a flush state.

When the side closed by the second door body 2 is opened, the second door body 2 is moved to the side on which the first door body 1 is present. As shown in FIG. 3, the pair of upper and lower vertical shaft rollers 34a, 34b at the wedge-shaped end portion 2a of the second door body 2 ride on the pair of upper and lower inclined guide portions 38a, 38b at the wedge-shaped end portion 1a of the first door body 1. As a result, the second door body 2 opens while moving in parallel to the outside of the first door body 1. And the second door body 2
As shown in FIG. 1D, by opening to the end of the traveling path that overlaps the outside of the first door body 1, by the second door body 2 among the openings of the storage space closed by both door bodies 1 and 2. About half the area that was closed is opened.

Next, the bearing units 28a, 28b, 31a, 31 of the second door body 2 in the sliding door device having the above-mentioned structure.
Describing b with reference to FIGS. 5 to 8, each of these bearing units has a main body 40 buried in the inner four corners of the second door body 2 and a recess 41 of the main body 40 with respect to the inside surface 2b of the door body (FIG. 3 and FIG. 4), a bearing member 42 that can be freely fitted and removed only in a direction perpendicular to the direction, and a retaining means 4 for retaining that locks the bearing member 42 at a position where the bearing member 42 is fitted in the main body recess 41.
3 and vertical link support shafts 29, 32 supported by the bearing member 42. Each link support shaft 29, 32 has a parallel link 5a at one end projecting vertically from both upper and lower ends of the second door body 2. , 5b are supported.

More specifically, the main body 40 is embedded in the second door body 2 so that the mounting flange portion 40a abuts on the inside surface 2b of the door, and is fixed by the screw 44 at the mounting flange portion 40a. . The bearing units 28a and 31a adjacent to the wedge-shaped end 2a of the second door body 2
Is formed such that one side thereof is flush with the wedge-shaped end 2a. The retaining means 43 for retaining is shown in FIGS.
As shown in FIG. 5, the retaining locking portions 45 formed on both the left and right sides of the main body recess 41 and the left and right sides of the bearing member 42 are integrally connected to each other so that the free end portion extends outward from the main body recess 41. It is composed of a pair of left and right elastic locking pieces 46 that project, and both of the elastic locking pieces 46 engage with the retaining locked portion 45 when the bearing member 42 is fitted into the main body recess 41. A locking portion 47 is formed to prevent the bearing member 42 from coming off.

On the other hand, bearing units 28a and 31 for axially supporting the upper parallel links 5a and 5b for suspending the second door body 2.
As shown in FIG. 5A and FIG.
The height adjusting means 48 for adjusting the position of the link support shaft 29 in the axial direction of the link support shaft 29 is provided for the position 2. That is, the link support shaft 29 supported by the bearing member 42 of each of the bearing units 28a and 31a is supported by the angular shaft portion 29a so as to be movable up and down but not rotatable, and the lower end of the link support shaft 29 is supported. Rotating female screw body 4 screwed into the screw shaft portion 29b
9 is configured to receive the bearing member 42.

By rotating the female screw body 49 in the normal direction so as to move upward with respect to the link support shaft 29,
Bearing units 28a, 31a,
That is, the second door body 2 is lifted, and conversely, the rotating female screw body 4
By reversing 9 so as to descend with respect to the link support shaft 29, the bearing unit 28 is attached to the link support shaft 29.
a, 31a, that is, the second door body 2 descends by gravity. Therefore, the height adjusting means 48 for both bearing units 28a, 31a
By operating as described above, the second door body 2 can be moved up and down in parallel to adjust the level and adjust the inclination in the traveling direction.

The lower parallel links 5a, 5b shown in FIG. 5B.
Link support shaft 3 of the bearing units 28b and 31b for supporting the shaft
2 may be completely fixed to the bearing member 42,
It may be supported so that it can rotate. Further, as shown in FIGS. 5A, 6 and 8, upper bearing units 28a, 31a for suspending the second door body 2 via the parallel links 5a, 5b.
The main body recess 41 and the bearing member 42 are provided with a vertical fitting portion 50 in which the main body 40 (second door body 2) descends with respect to the bearing member 42 fitted in the main body recess 41 to fit each other. ing. Lower bearing unit 28b, 31 shown in FIG. 5B
In the main body recess 41 and the bearing member 42 of FIG.
A vertical fitting portion 51 is provided in which the bearing member 42 fitted to the lower part is lowered with respect to the main body 40 (second door body 2) and fitted to each other. These fitting portions 50 and 51 are formed in the main body concave portion 41.
Side recesses and bearing member 42 side protrusions.

Explaining the method of assembling the second door body 2, the upper second guide rail 3A on which the upper traveling unit 4A is set in advance is attached at a predetermined position, but is parallel to the traveling unit 4A. Links 5a, 5b
One end of the parallel link 5 is supported by the link support shaft 27.
At the other end of a, 5b, the corresponding bearing unit 28a, 3
A bearing member 42 removed from the main body 40 of 1a is supported via a link support shaft 29. The traveling unit 4B is engaged with the lower second guide rail 3B attached at a predetermined position, and one end of the parallel links 5a, 5b is supported by the link support shaft 30 on the traveling unit 4B. Bearing members 42 removed from the main bodies 40 of the corresponding bearing units 28b and 31b are supported at the other ends of the links 5a and 5b via link support shafts 32.

The main body 40 of each bearing unit 28a, 28b, 31a, 31b is attached to the inner four corners of the second door body 2. The second door body 2 is moved so that the bodies of the bearing units 28a, 31a on the upper side thereof are adjacent to the bearing member 42 at the ends of the parallel links 5a, 5b protruding from the upper traveling unit 4A, and the bearing members concerned. 42 is fitted in the main body recess 41. At this time, the pair of left and right elastic locking pieces 46 of the bearing member 42 elastically deforms inward once when the locking portion 47 crosses over the pair of left and right locked portions 45 on the main body recessed portion 41 side. After the elastic return, the locking portion 47 engages with the retaining locked portion 45, and the bearing member 42
Is locked in the main body recess 41. At the same time, by slightly lowering the second door body 2, the main body 40 is lowered with respect to the bearing member 42 of both bearing units 28a and 31a, and the vertical fitting portions 50 between them are fitted to each other.

If the second door body 2 is hung on the upper traveling unit 4A via the parallel links 5a and 5b and the bearing units 28a and 31a as described above, then the second door body 2 is placed under the second door body 2. Body 40 of bearing unit 28b, 31b on the side
And the bearing member 42 at the ends of the parallel links 5a and 5b protruding from the lower traveling unit 4B are adjacent to each other, and the bearing member 42 is placed in the main body recess 4 of the bearing units 28b and 31b.
1 is fitted in the inside in the same manner as described above, and is locked by the locking means 43 for retaining. The lower bearing unit 28
In b and 31b, the bearing member 42 is connected to the parallel link 5
The bearing members 42 of both bearing units 28b and 31b are lowered with respect to the main body 40 by slightly lowering them together with the a and 5b and the traveling unit 4B with respect to the main body 40 (second door body 2), and the vertical direction between them. The fitting parts 51 are fitted to each other.

When it becomes necessary to remove the second door body 2, in the lower bearing units 28b and 31b, the end portions of the pair of left and right elastic locking pieces 46 projecting from the main body recess 41 are sandwiched with fingertips. , The locking portion 47 is disengaged from the retaining locked portion 45 on the main body recess 41 side, and the bearing member 42 is slightly lifted so that the vertical fitting portions 51 between the main body recess 41 and the bearing member 42 are mutually connected. In this state, the bearing member 42 and the second door body 2 are separated from each other,
From the inside of the main body recess 41 to the bearing member 42,
It is disengaged relatively inward at a right angle to b. Next, in the upper bearing units 28a and 31a, the locking portion 47 of the elastic locking piece 46 is disengaged from the retaining locked portion 45 on the main body recess 41 side as described above, and the second door body 2 Is slightly lifted to disengage the vertical fitting portion 50 between the main body recess 41 and the bearing member 42 from each other, and the bearing member 42 and the second door body 2 are separated from each other in such a state, It suffices to relatively disengage from the inside of the recess 41 toward the inside 2 at a right angle to the inner surface 2b of the door.

[0031]

According to the door supporting device of the present invention, the upper and lower ends of the door are connected to the pair of upper and lower traveling units (4A, 4B) by the pair of parallel links (5a) in the traveling direction as in the above embodiment. ,Five
b) can be utilized as a support means for the door body of the sliding door device that must be supported so as to be able to move in parallel. Body of (28a, 28b, 31a, 31b) (40)
Only the bearing units (28a, 28b, 31
Bearing member (42) that can be freely inserted into and removed from the body (40) of a, 31b)
Is a parallel link protruding from the traveling unit (4A, 4B)
By preliminarily supporting the end portions of (5a, 5b) by the link support shafts (29, 32), these bearing members (42) are recessed ( The door body (2) can be attached to the pair of upper and lower traveling units (4A, 4A
B) can be supported via parallel links (5a, 5b).

As described above, the setting operation of the door body (2) can be performed very easily and easily. Particularly, according to the structure of the present invention, the main body concave portion (28a, 28b, 31a, 31b) of the bearing unit (28a, 28b, 31a, 31b) 41) and the bearing member (42) can be inserted and removed only in the direction perpendicular to the inside surface (2b) of the door, so that when the door (2) is attached and detached, the door (2) is moved in the horizontal front-rear direction. It suffices if it can be moved, and there is no need for a space above and below the door (2) for moving the door (2) up and down. That is, it is sufficient to secure a narrow space above and below the door body (2) so that the parallel links (5a, 5b) can horizontally swing. The top plate and ceiling surface of furniture can be brought close to each other, and the bottom plate and floor surface of furniture can be placed close to the lower end of the door.

According to the second aspect of the present invention, in the case where the upper traveling unit (4A) is a door hanging type sliding door supporting device having the supporting horizontal axis wheel (23). , The height of the door body (2) suspended by the parallel links (5a, 5b) and the inclination in the traveling direction can be adjusted by the height adjusting means (48), and the door body (2) can be set accurately. it can. Further, according to the configuration of claim 3, the bearing member (42) fitted in the main body recess (41) can be automatically locked, and at the time of removing the door body (2), The pair of left and right elastic locking pieces (46) protruding from the main body recess (41) may be sandwiched between the fingertips and the bearing member (42) may be pulled out from the main body recess (41). Can be done efficiently.

Further, according to the structure of claim 4,
Vertical fitting part provided in the main body recess (41) and the bearing member (42)
The bearing member (42) cannot be pulled out from the recessed part (41) of the main body unless the door body (2) is once lifted by the (50) to separate the vertical fitting part (50) from each other. Even if the locking means (43) is damaged, the door body (2) does not come off immediately and it is safe. In addition, even when the door body (2) is removed, the door body (2) will not fall forward if the bearing member (42) and the recessed part (41) of the main body are simply unlocked. You can work on it.

[Brief description of drawings]

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

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

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

FIG. 4 is a vertical cross-sectional side view with the first door body opened.

FIG. 5 is an elevation view of a pair of upper left and right bearing units of the second door body seen from the inside, and FIG. 5 is a view of the pair of lower left and right bearing units of the second door body seen from the inside. FIG.

FIG. 6 is a transverse bottom view with the main body of the bearing unit and the bearing member separated from each other.

FIG. 7 is a cross-sectional bottom view showing a state where the bearing member is fitted and locked to the main body of the bearing unit.

FIG. 8 is a vertical side view of FIG. 7 (the vertical position is different between the upper half part and the lower half part).

[Explanation of symbols]

 1 1st door body 2 2nd door body 3A upper side 2nd guide rail 3B lower side 2nd guide rail 4A 2nd door body upper side traveling unit 4B 2nd door body lower side traveling unit 5a parallel link 5b parallel link 6A 1st Upper guide rail of one door body 6B Lower guide rail of first door body 14A Upper traveling unit of first door body 14B Lower traveling unit of first door body 16 Horizontal axis wheel for support 17 Vertical axis wheel 19 Vertical axis wheel 22a vertical shaft wheel 22b vertical shaft wheel 23 supporting horizontal shaft wheel 26 vertical shaft wheel 27 link shaft 28a bearing unit 28b bearing unit 29 link shaft 29a angular shaft portion 29b screw shaft portion 30 link shaft 31a bearing unit 31b bearing unit 32 link support shaft 33 tension coil spring 34a vertical shaft roller 34b hanging Shaft roller 35a Vertical shaft roller 35b Vertical shaft roller 36a Strip cover member 36b Strip cover member 37a Strip cover member 37b Strip cover member 38a Inclination guide portion 38b Inclination guide portion 40 Bearing unit body 41 Body recess 42 Bearing unit bearing member 43 Missing Locking means for locking 45 Locked part for retaining 46 46 Elastic locking piece 47 Locking part 48 Height adjusting means 49 Rotating female screw body 50 Vertical fitting part 51 Vertical fitting part

Claims (4)

[Claims] 1. Parallel links (5a, 5b) to a pair of upper and lower traveling units (4A, 4B) engaging with a pair of upper and lower guide rails (3A, 3B).
A support device for a door body in which both upper and lower ends are supported via, and four bearing units (28a, 28b, 31a, 31b) are provided, and each bearing unit (28a, 28b, 31a, 31b) is a door The main body (40) mounted near the inner four corners of the body (2), and the bearing member (42) that can be fitted into and removed from the recess (41) of the main body (40) only in the direction perpendicular to the inside surface (2b) of the door. And a retaining means for retaining that locks the bearing member (42) at the position where it is fitted in the main body recess (41).
(43) and the vertical link support shaft (2
9,32), and each link support shaft (29,32) is a parallel link at one end protruding vertically from both upper and lower ends of the door body (2).
Door support device that supports (5a, 5b). 2. A door-hanging type sliding door supporting device in which the upper traveling unit (4A) includes a supporting horizontal axis wheel (23), wherein the upper bearing unit (28a, 31a) is The door supporting device according to claim 1, further comprising height adjusting means (48) for adjusting the position of the link support shaft (29) in the axial direction of the bearing member (42). 3. Locking means (43) for preventing the bearing unit (28a, 28b, 31a, 31b) from coming off are provided continuously from the left and right sides of the bearing member (42), and the free end portion is a body recess (41). It consists of a pair of left and right elastic locking pieces (46) projecting outwardly from and a retaining locking part (45) formed on both left and right sides of the main body recess (41). The piece (46) engages with the retaining portion (45) for retaining when the bearing member (42) is fitted in the recess (41) of the main body, and retains the bearing member (42). The support device for a door body according to claim 1, further comprising a stop portion (47). 4. A door hanging type sliding door supporting device, wherein the upper traveling unit (4A) is provided with a supporting horizontal shaft wheel (23), and a main body of the upper bearing unit (28a, 31a). The recess (41) and the bearing member (42) have a vertical fitting portion in which the main body (40) descends and fits into the bearing member (42) fitted in the main body recess (41).
The door body supporting device according to claim 1, further comprising (50).