JP3233385B2 - Door body support 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 used as an opening / closing door for a built-in storage unit or various storage furniture, and in particular, a structure in which the surfaces of the doors are flush when closed. The present invention relates to a device for supporting a door body supported by a parallel link of a sliding door provided.

[0002]

2. Description of the Related Art Various doors are known as sliding doors in which the surfaces of the doors are flush with each other when the door is closed, but the structure, especially the guide rail structure, is very complicated. Was not practical. To solve such a problem, Japanese Utility Model No. 1-2206
As described in Japanese Patent Application Publication No. 8 (1994), one of the first doors is supported on the first guide rail so as to be capable of only a left-right linear movement in the same manner as a general sliding door, and the other second door is A sliding door has been conceived, which is supported by a traveling unit supported on a two-guide rail so as to allow only left-right linear movement so as to be able to move in and out in parallel via parallel links.

In this sliding door using a parallel link, the outer ends of the parallel link are supported by vertical link support shafts on the outer sides of the upper and lower ends of a door body supported by the parallel link. In the configuration described in Japanese Patent Publication No. 1-22068, an upper traveling unit is attached to the upper end side of the door via a parallel link, and the upper traveling unit is fitted and supported on the upper guide rail from above. Thereafter, 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.

[0004] Therefore, it is necessary to secure a large space above and below the door body, which has a height that is larger than the space required for simply horizontally swinging the upper parallel link. This was a problem when incorporating a sliding door. Also, when setting the door, the upper body is handled with the upper traveling unit attached to the upper end side of the door via a parallel link, so that the parallel link and the upper traveling unit come into contact with other objects. There is also a problem that the sheet is likely to be deformed or damaged, and is difficult to handle. An object of the present invention is to solve the conventional problems as described above.

[0005]

The structural features of the present invention for achieving the above object are indicated by reference numerals in the embodiments described later, and are related to a pair of upper and lower guide rails (3A, 3B). The parallel links (5a, 5a) are connected to a pair of upper and lower traveling units (4A, 4B)
5b) is a supporting device of the door body which is supported at both upper and lower ends through four bearing units (28a, 28b, 31a, 31b), each bearing unit (28a, 28b, 31a, 31b) , A body (40) attached near the four inner corners of the door body (2), and this body (40)
The bearing member (42), which can be fitted and disengaged only in the direction perpendicular to the inside surface (2b) of the door with respect to the concave portion (41) of the door, and the bearing member (42) is locked at the position where it is fitted to the main body concave portion (41). Locking means (43) for preventing the falling off, and a vertical link support shaft (29, 32) supported by a bearing member (42), and each link support shaft (29, 32) is provided with a door body (2).
The parallel link (5a, 5b) is supported at one end projecting vertically from the upper and lower ends of the bearing unit (28a, 28b, 31a, 31).
b) The retaining means (43) for retaining
The free ends protrude outward from the main body recess (41).
The left and right pair of elastic locking pieces (46)
And locking parts (45) for retaining on the right side.
The pair of left and right elastic locking pieces (46)
Locked part (45) for retaining when fitted in the recess (41)
A locking part (47) is provided to engage with
The feature is that it is obtained .

In carrying out the present invention, the upper traveling unit
Door (4A) is equipped with a horizontal suspension wheel (23)
If it is a support device for the sliding door of the Ip, the upper bearing unit
Knit (28a, 31a) body recess (41) and bearing member (42)
The main body (4) with respect to the bearing member (42) fitted in the main body recess (41).
(0) is provided with a vertical fitting part (50) that descends and fits each other.
Can be kept.

[0007]

[0008]

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the overall structure and operation of a sliding door device constructed using the support 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 a pair of upper and lower linear second guide rails 3A and 3B for supporting and guiding the second door body 2
Is reciprocally supported. The second door body 2 is supported by a pair of upper and lower traveling units 4A, 4B that engage with the second guide rails 3A, 3B via parallel links 5a, 5b, and is located at 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.
2 can be translated.

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 are integrally connected 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 located immediately below the upper second guide rail 3A, and a downwardly-opening grooved rail portion 8 located immediately below the upper second guide rail 3A. The upper second guide rail 3A includes
A pair of upper and lower grooved rail portions 9a and 9b vertically opposed to each other.
And a slit 10 opening outwardly near the upper grooved rail portion 9a. 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. These two guide rails 6B and 3B are integrally connected in two steps in the upper and lower stages 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 1 is 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 each of the upper and lower traveling units 4A and 4B, and are connected to the upper traveling unit 4A.
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 of each trolley 20a, 20b has a lower end protruding downward from the trolleys 20a, 20b and an upper end 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 of the second door body 2 are provided with link support shafts 30 vertically supported by the trolleys 24a and 24b of the lower traveling unit 4B.
Both ends are supported by a lower end of the second door body 2 and a link support shaft 32 vertically supported by bearing units 28b and 31b attached to both ends in the traveling direction. The link support shaft 30 on each of the trolleys 24a and 24b also serves as a support shaft of 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 the 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.

As shown in FIGS. 1A, 2 and 3, an inner position P at which the second door 2 overlaps the travel path of the first door 1 is shown.
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 band-shaped cover members 36a, 36b overlapping the wedge-shaped end 1a of the first door 1, the inclined guide portions 38a, 3
8b are formed.

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.
When the first door 1 is opened toward the second door 2 as shown in FIG. 1B from the closed state, a pair of upper and lower inclined guide portions 38a, 38b at the wedge-shaped end 1a of the first door 1 is formed. ,
As shown in FIGS. 2 and 3, the second door 2 is pushed outward through a pair of upper and lower vertical shaft rollers 34 a and 34 b of the adjacent second door 2. Therefore, as shown in FIG. 1B, the second door 2 supported by the parallel links 5 a and 5 b moves in parallel to the outside of the traveling path of the first door 1.

As shown in FIG. 1C, when the first door 1 is moved to the end of the traveling route, 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, 34b at the wedge-shaped end 2a of the second door 2 ride on a pair of upper and lower inclined guides 38a, 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. And the second door body 2
As shown in FIG. 1D, by opening and moving to the end of the travel path overlapping the outside of the first door body 1, the second door body 2 opens the storage space closed by the two door bodies 1 and 2. About half of the closed area is opened.

Next, the bearing units 28a, 28b, 31a, 31 of the second door body 2 in the sliding door apparatus having the above-described structure.
The bearing unit b will be described with reference to FIGS. 5 to 8. In each of these bearing units, the door body side surface 2 b (see FIG. 3 and FIG. 4), and a retaining member 4 for retaining the bearing member 42 at a position where the bearing member 42 is fitted in the concave portion 41 of the main body.
3 and vertical link support shafts 29 and 32 supported by the bearing member 42. Each of the link support shafts 29 and 32 has a parallel link 5 a at one end protruding vertically from both upper and lower ends of the second door body 2. , 5b.

More specifically, the main body 40 is buried in the second door body 2 so that the mounting flange portion 40a comes into contact with the inner side 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 is flush with the wedge-shaped end 2a. FIGS. 6 and 7
As shown in FIG. 3, the retaining portions 45 for retaining formed on both left and right sides of the main body concave portion 41 and the left and right sides of the bearing member 42 are integrally connected so that the free end portion extends outward from the main body concave portion 41. A pair of left and right elastic locking pieces 46 project from each other. The two elastic locking pieces 46 are engaged with the retaining portions 45 for retaining when the bearing member 42 is fitted into the main body concave portion 41. A locking portion 47 is formed to prevent the bearing member 42 from coming off.

On the other hand, bearing units 28a, 31 for supporting the upper parallel links 5a, 5b for suspending the second door 2
As shown in FIGS. 5A and 8, the bearing member 4a
A height adjusting means 48 for adjusting the position of the link support shaft 29 in the axial direction of the shaft 2 is provided. That is, the link support shaft 29 supported by the bearing members 42 of the bearing units 28a and 31a is supported by the square shaft portion 29a so that it can only move up and down with respect to the bearing members 42 and cannot rotate. Rotating female screw body 4 screwed into screw shaft portion 29b
9 is configured to receive the bearing member 42.

By rotating the rotary female screw body 49 forward with respect to the link support shaft 29,
Bearing units 28a and 31a with respect to the link support shaft 29,
That is, the second door body 2 is lifted, and conversely, the rotating female screw body 4
9 is rotated so as to descend with respect to the link support shaft 29, so that the bearing unit 28
a, 31a, that is, the second door body 2 descends by gravity. Accordingly, the height adjusting means 48 of the dual bearing units 28a, 31a is provided.
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 and 5b shown in FIG. 5B
Support shaft 3 of bearing units 28b and 31b for supporting the shaft 3
2 may be completely fixed to the bearing member 42,
It may be supported so that it can rotate. In addition, as shown in FIGS. 5A, 6, and 8, upper bearing units 28 a and 31 a that suspend the second door body 2 via the parallel links 5 a and 5 b.
The main body concave portion 41 and the bearing member 42 are provided with a vertical fitting portion 50 in which the main body 40 (the second door body 2) descends and fits with the bearing member 42 fitted in the main body concave portion 41. ing. The lower bearing units 28b, 31 shown in FIG. 5B
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 main body 40 descends with respect to the main body 40 (the second door body 2) and fits with each other. These fitting portions 50 and 51 are provided in the main body concave portion 41.
And a projection on the bearing member 42 side.

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

At the four inner corners of the second door 2, the main bodies 40 of the bearing units 28a, 28b, 31a, 31b are mounted. The second door body 2 is moved so that the main body of the upper bearing unit 28a, 31a is adjacent to the bearing member 42 at the end of the parallel link 5a, 5b projecting from the upper traveling unit 4A, and the bearing member is moved. 42 is fitted into the main body concave portion 41. At this time, the pair of left and right elastic locking pieces 46 of the bearing member 42 are once elastically deformed inward when the locking portion 47 passes over the pair of left and right locking locked portions 45 on the main body concave portion 41 side, After the elasticity is restored, the locking portion 47 engages with the retaining portion 45 for retaining, and the bearing member 42
Is locked in the main body concave portion 41. At the same time, by slightly lowering the second door 2, the main body 40 is lowered with respect to the bearing members 42 of the two bearing units 28a and 31a, and the vertical fitting portions 50 between them are fitted to each other.

After the second door 2 has been suspended from the upper traveling unit 4A via the parallel links 5a, 5b and the bearing units 28a, 31a as described above, next, the second door 2 Body 40 of the bearing units 28b, 31b on the side
And the bearing members 42 at the ends of the parallel links 5a and 5b protruding from the lower traveling unit 4B are made adjacent to each other, and the bearing members 42 are attached to the main body concave portions 4 of the bearing units 28b and 31b.
1 and is locked by the locking means 43 for retaining. The lower bearing unit 28
b, 31b, the bearing member 42 is connected to the parallel link 5
The bearing members 42 of the two bearing units 28b and 31b are lowered with respect to the main body 40 by slightly lowering the main body 40 (the second door body 2) together with the a, 5b and the traveling unit 4B, and the vertical direction between the two. The fitting portions 51 are fitted together.

When it becomes necessary to remove the second door 2, the ends of the pair of left and right elastic locking pieces 46 protruding from the main body concave portion 41 are sandwiched between the lower bearing units 28b and 31b with fingertips. The locking portion 47 is disengaged from the retaining portion 45 for retaining on the side of the main body concave portion 41, and the bearing member 42 is slightly lifted so that the vertical fitting portion 51 between the main body concave portion 41 and the bearing member 42 can be separated from each other. In such a state, the bearing member 42 and the second door body 2 are separated from each other,
The bearing member 42 is moved from the inside of the main body concave portion 41 to the door inner surface 2.
relative 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 concave portion 41 side as described above, and the second door 2 Is slightly lifted to disengage the vertical fitting portions 50 between the main body concave portion 41 and the bearing member 42, and in such a state, the bearing member 42 and the second door body 2 are separated from each other so that the bearing member 42 is separated from the main body. What is necessary is just to make it detach | leave from the inside of the recessed part 41 inward at right angles with respect to the door inner surface 2b.

[0031]

According to the door supporting apparatus 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 a pair of parallel links (5a ,Five
b) It can be used as a support means of the door body of the sliding door apparatus which must be supported so as to be able to move in parallel, and according to the device of the present invention, the four inner corners of the door body have bearing units. (28a, 28b, 31a, 31b) body (40)
Only the bearing units (28a, 28b, 31
a, 31b) (42)
Are the parallel links protruding from the traveling units (4A, 4B).
By previously supporting the ends of (5a, 5b) with link support shafts (29, 32), each of these bearing members (42) is recessed in the body (40) mounted inside the door body. 41), the door (2) can be moved up and down to a pair of 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. In particular, according to the configuration of the present invention, the main body concave portion (28a, 28b, 31a, 31b) of the bearing unit (28a, 28b, 31a, 31b) is provided. 41) and the bearing member (42) can be fitted and disengaged only in the direction perpendicular to the inside surface (2b) of the door, so that when the door (2) is attached or detached, the door (2) is It is sufficient if the door (2) can be moved, and no space is required 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 swing horizontally. The top plate and the ceiling surface of the furniture can be approached, and the bottom plate and the floor surface of the furniture can be located close to the lower end of the door body.

Moreover, according to the present invention, the main body recess (41) is fitted.
The combined bearing member (42) can be locked automatically
At the same time, when removing the door (2),
1) A pair of left and right elastic locking pieces (46) protruding from
It is sufficient to pull out the bearing member (42) from the body recess (41)
Easy and efficient installation and removal of the door
I can do it.

According to the second aspect of the present invention , the vertical fitting portion (50) provided in the main body concave portion (41) and the bearing member (42).
The door (2) is once lifted up and
0), as long as the bearing members (42) are not separated from each other.
Since it cannot be pulled out from (41), even if the locking means (43) for retaining is broken, the door body (2) does not come off immediately and is safe. Also, when removing the door (2), simply releasing the engagement between the bearing member (42) and the concave portion (41) of the main body does not cause the door (2) to fall down toward the front, which is safe. Work.

[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.

FIG. 5A is an elevational view of a pair of upper left and right bearing units of a second door body as viewed from the inside, and FIG. 5B is a bottom view of a pair of lower right and left bearing units of the second door body as viewed from the inside; FIG.

FIG. 6 is a cross-sectional bottom view in a state where the main body of the bearing unit and the bearing member are separated.

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

FIG. 8 is a vertical cross-sectional view of FIG. 7 (the vertical position is different between the upper half and the lower half).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 First door body 2 Second door body 3A Upper second guide rail 3B Lower second guide rail 4A Upper traveling unit of second door body 4B Lower traveling unit of second door body 5a Parallel link 5b Parallel link 6A 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 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 27 link support shaft 28a bearing unit 28b bearing unit 29 link support shaft 29a square shaft portion 29b screw shaft portion 30 link support shaft 31a bearing unit 31b bearing unit 32 Link shaft 33 Tension coil spring 34a Vertical axis roller 34b Vertical Axis roller 35a Vertical axis 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 portion 38b Inclined guide portion 40 Main body of bearing unit 41 Body recess 42 Bearing member 43 of bearing unit 43 Locking means for locking 45 Locked part for retaining 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 (2)

(57) [Claims] A parallel link (5a, 5b) is connected to a pair of upper and lower traveling units (4A, 4B) which engage with a pair of upper and lower guide rails (3A, 3B).
A support device for a door body whose upper and lower end portions are supported via a door, comprising four bearing units (28a, 28b, 31a, 31b), and each bearing unit (28a, 28b, 31a, 31b) includes a door. A main body (40) mounted near the four inner corners of the body (2), and a bearing member (42) which can be fitted and disengaged only from the recess (41) of the main body (40) in a direction perpendicular to the inside surface (2b) of the door. Locking means for locking the bearing member (42) at a position fitted to the main body concave portion (41).
(43) and a vertical link support shaft (2
9, 32), and each link support shaft (29, 32) has a parallel link at one end projecting vertically from both upper and lower ends of the door body (2).
(5a, 5b) and locking means for retaining the bearing units (28a, 28b, 31a, 31b)
(43) is a free end portion which is continuously provided from both left and right sides of the bearing member (42).
A pair of left and right elastic locks that project outward from the body recess (41)
Pieces (46) and stoppers formed on both left and right sides of the main body recess (41)
Locking part (45), and a pair of left and right elastic locking pieces (4
6) is when the bearing member (42) is fitted into the main body concave portion (41).
At the same time, engage the retaining part (45) to remove the bearing member (42).
A door supporting device including a locking portion (47) for stopping . 2. An upper traveling unit (4A) comprising a horizontal shaft wheel for support.
Door (23)
And the bearing section (41) of the upper bearing unit (28a, 31a)
The material (42) includes the bearing member (42) fitted in the main body concave portion (41).
On the other hand, the vertical fitting part where the main body (40) descends and fits together
The device for supporting a door body according to claim 1, wherein (50) is provided .