JP2997217B2 - Folding 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 folding door in which two door bodies are connected to each other in a foldable and deployable manner, and a free end of the folding door is connected to a guide rail. The present invention relates to a folding door device connected via a pivoting means to a roller unit movably supported on a folding unit.

[0002]

2. Description of the Related Art A folding door device of this kind is
The movement path of the free end of the folding door is regulated by the guide rail. For example, if the movement path of the roller unit mounting position when the guide rail or the folding door is opened and closed is not completely horizontal, the movement is supported by the guide rail. Smooth sliding of the roller unit, and thus the opening and closing movement of the folding door, cannot be performed. In particular, when the shelf is laid under a shelf installed at an intermediate height of the storage space opened and closed by the folding door, the above-described inconvenience occurs due to the vertical warpage of the shelf.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a folding door device which can solve the above-mentioned conventional problems. In addition, the base end of the folding door 1 in which the two door bodies 2 and 3 are foldably connected to each other is pivotally attached to a fixed position, and the free end of the folding door 1 is guided by a guide. Roller unit 1 movably supported on rail 10
1 is a folding door device which is connected to pivoting means 1 via hinge means 12 (hinges 12), wherein the guide rail 10 is provided below a shelf plate 9 installed at an intermediate height of a storage space 5 opened and closed by the folding door 1. The roller unit 11 includes a roller unit main body 13, a mounting body 14 movably engaged with the main body 13, and a spring 16 for urging the main body 13 downward with respect to the mounting body 14. And the attachment body 14 is connected to the free end of the folding door 1 via the pivot means (hinge 12).

In implementing the above folding door apparatus of the present invention, as means for engaging the mounting body 14 with the roller unit main body 13 so as to be able to move up and down within a certain range, both ends in the moving direction of the roller unit main body 13 are used. Vertical grooves 19a and 19b are formed, and the mounting body 14 has
Upwardly extending tongue pieces 25a and 25b which are fitted to the pair of front and rear concave grooves 19a and 19b so as to be able to ascend and descend are connected to each other.
A connecting screw 15 that is screwed to a can be provided.

The screw hole 21a of the roller unit main body 13 is formed by a nut 21 with a locking stopper which fits into a concave portion 20a formed on the upper surface of the main body 13, and projects upward from the nut 21. The stopper 16 is attached to the upper end of the connecting screw 15, and the spring 16 is connected to the lower head 2 of the connecting screw 15.
The screw 15 can be loosely fitted between the mounting member 7 and the mounting body 14.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.
Is a folding door, and two door bodies 2 and 3 of the same size are moved by a plurality of hinges 4 between a folding posture X shown by a virtual line in FIG. 1 and an unfolding posture Y shown by a solid line in FIG. It is configured to be swingably connected. Reference numeral 5 denotes a storage space which is opened and closed by the folding door 1. Of the two side walls 6 and 7 constituting the storage space 5, one of the side walls 6 has a base end of the folding door 1 in a plurality of vertical directions. A guide rail 10 is laid under the front edge of a shelf 9 laid between the side walls 6 and 7 at an intermediate height of the storage space 5 by being hinged by the hinge 8, and is movable on the guide rail 10. The roller unit 11 supported by the door and the free end of the folding door 1 are a pair of upper and lower hinges 1.
2 are connected.

In the illustrated embodiment, the hinges 8,
A link type hinge generally called a slide hinge is used for the hinge 12.
Any hinge (pivot means) can be used depending on the mode of attachment.

As shown in FIGS. 3 to 5, the guide rail 10 is attached to the lower corner of the front edge of the shelf 9 so as not to be seen from the outside. Rail portions 10a and 10b are provided on both sides of the central slit. The roller unit 11 is a roller unit body 1
3, a mounting body 14, a connecting screw 15, and a compression coil spring 16.

The roller unit body 13 comprises a pair of left and right and two front and rear support horizontal shaft rollers 17 which roll on a pair of left and right rail portions 10a and 10b of the guide rail 10.
And a pair of left and right rail portions 10 of the guide rail 10
and a pair of front and rear vertical shaft rollers 18 for regulating the movement direction, which are fitted between a and 10b. As shown in FIG.
Is formed, and a through hole 20 in the vertical direction is provided at the center position. A hexagonal recess 2 is formed at the upper end of the through hole 20.
0a is formed, and a nut 21 with a slack stop is non-rotatably fitted and fixed in the recess 20a.

The mounting body 14 has a hinge mounting portion 22 in two upper and lower stages.
, A main body mounting horizontal plate portion 24 continuously provided from the upper end of the vertical plate portion 23, and the main body mounting horizontal plate portion 24 bent and connected upward from both ends in the moving direction of the main body mounting horizontal plate portion 24. A pair of tongue pieces 25a, 25b is provided at the center of the main body mounting horizontal plate 24, and a through hole 26 in the up-down direction is provided.
Is provided.

The connecting screw 15 includes a head 27, a screw shaft 28 screwed through the screw hole 21 a of the nut 21 with a locking screw, and a small-diameter shaft 29 formed at the tip of the screw shaft 28. A stopper (which is generally called a push nut) 30 that can be press-fitted and fixed to the small-diameter shaft portion 29 is also used. Of course, the stopper 30 for retaining is not limited to such a push nut-shaped stopper.

At the time of assembling, as shown in FIG. 7, a pair of front and rear tongue pieces 25a and 25b of the mounting body 14 are fitted to the pair of front and rear concave grooves 19a and 19b of the roller unit body 13 so as to be vertically movable. The horizontal plate portion 24 of the mounting body 14 is superimposed on the lower side of the unit body 13, and the connecting screw 15 in which the compression coil spring 16 is loosely fitted is attached to the mounting body 14.
Is inserted upward through the through hole 26 of the roller unit main body 13 into the through hole 20 of the roller unit main body 13, and the screw shaft portion 28 is screwed into the screw hole 2 of the nut 21 with a locking member on the roller unit main body 13 side.
1a, and a stopper (push nut) 30 for retaining is pressed and fixed to the small diameter shaft portion 29 of the connecting screw 15 projecting upward from the nut 21. As a result, the spring 16 is sandwiched between the horizontal plate portion 24 of the mounting body 14 and the head 27 of the connection screw 15, and the connection screw 1
5, the roller unit main body 13 and the mounting body 14 are urged in a direction to approach each other.

With the roller unit body 13 of the roller unit 11 assembled as described above movably fitted in the guide rail 10, the guide rail 10
To the shelf 9 at a predetermined position. On the other hand, a pair of upper and lower hinges 12 are mounted at predetermined positions on the free end of the folding door 1 whose base end is pivotally connected to the side wall 6 by the hinges 8, and the mounting pieces 12a of the hinges 12 are connected to guide rails. The screw 1 is attached to the hinge mounting portion 22 of the vertical plate portion 23 of the mounting body 14 of the roller unit 11 movably supported by the roller unit 11.
2b.

The height of the mounting body 14 is determined by connecting the mounting body 14 of the roller unit 11 to the free end of the folding door 1 as described above. At this time, the horizontal axis roller 17 of the roller unit body 13 is moved by the compression reaction force of the compression coil spring 16 to the rail portion 10 of the guide rail 10.
The connection screw 15 is rotated forward and reverse using the head 27 so that the head 27 (spring seat) with respect to the roller unit main body 13 is pressed against the a and 10b with appropriate strength. Adjust up and down.

In the folding door apparatus assembled as described above, the free end of the folding door 1 (the side where the roller unit 11 is located) is moved along the guide rail 10 so that the folding door 1 is moved to the position shown in FIG. Folding posture X indicated by virtual line
To the unfolding position Y shown by the solid line in FIG. 1 to close the storage space 5, and conversely, from the unfolding position Y to the folding position X.
And the storage space 5 can be opened. At this time, the movement path of the free end of the folding door 1 is regulated by the guide rail 10 and the roller unit 11 movably supported by the guide rail 10, and the roller unit 11 is moved by the pair of front and rear vertical shaft rollers 18. The time orientation is maintained parallel to the length direction of the guide rail 10, and the horizontal shaft roller 17 of the roller unit 11 rolls while always abutting on the rail portions 10 a and 10 b of the guide rail 10 with an appropriate pressure. I do.

In the above embodiment, the guide rail 10 laid on the shelf 9 guides the intermediate height of the free end of the folding door 1 at one location. The guide rail 10 may be laid, and the upper end of the free end of the folding door 1 may be guided by the guide rail 10. Of course, in this case, as is well known in the art, it is desirable that the guide rail laid on the floor side also guides the lower end of the free end of the folding door 1.

The means for engaging the mounting body 14 with the roller unit main body 13 so as to be able to move up and down within a certain range includes the concave grooves 19a, 19b and the tongue pieces 25a,
It is not limited to the configuration using 25b and the connecting screw 15. Of course, in the above embodiment, since the connecting screw 15 is used, the compression coil spring 16 is connected to the screw 1.
5 is loosely fitted to the screw 15 between the head 27 and the mounting body 14, and the biasing force of the spring 16 can be adjusted by adjusting the height of the screw 15. On the other hand, it is sufficient that the roller unit main body 13 can be urged downward.

[0018]

As described above, according to the folding door apparatus of the present invention, the guide rail for guiding the free end of the folding door is provided at the middle of the storage space opened and closed by the folding door. Despite being laid below the board, the shelf board flexes and deforms over time due to the load of the load, causing the shelf board to warp in the vertical direction, or the shelf board originally Even if there is a vertical shift between the guide path and the moving path of the roller unit due to the opening and closing movement of the folding door due to warpage, the shift is determined by the roller unit main body of the roller unit and the mounting body. , And the horizontal axis roller of the roller unit body can be constantly pressed against the rail surface of the guide rail by the urging force of the spring.

That is, when the guide rails are not originally mounted in a completely horizontal state, when the guide rails themselves warp in the vertical direction due to the warp of the shelf supporting the guide rails, Even if the mounting height of the unit itself or the mounting height of the pivoting means such as hinges attached to the free end of the folding door is not sufficiently accurate, the roller unit can be moved with respect to the guide rail, and hence the folding door. The opening and closing movement of the roller can always be performed smoothly, and the roller unit does not rattle up and down in the guide rail, so that no abnormal noise is generated when the folding door is opened and closed.

According to the second aspect of the present invention, the mounting body can be connected to the roller unit main body with a simple configuration such that the mounting body can only be moved up and down within a certain range.
Cost can be reduced. In this case, in particular, according to the configuration of the third aspect, although the biasing force of the spring can be adjusted by adjusting the height of the connecting screw, it is possible to prevent the state after adjustment from unexpectedly changing. It can be prevented by the nut with the stopper, and it is possible to prevent the connecting screw from coming off unexpectedly due to excessive loosening of the connecting screw.

[Brief description of the drawings]

FIG. 1 is an overall schematic plan view.

FIG. 2 is a schematic front view of the whole.

FIG. 3 is a vertical sectional side view of a main part.

FIG. 4 is a vertical sectional rear view of a main part.

FIG. 5 is a plan view of a main part.

FIG. 6 is an exploded partial longitudinal rear view of the roller unit.

FIG. 7 is a partially cutaway rear view of the assembled roller unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Folding door 9 Shelf board 10 Guide rail 11 Roller unit 12 Hinge (pivoting means) 13 Roller unit main body 14 Mounting body 15 Connection screw 16 Compression coil spring 17 Horizontal axis roller 18 Vertical axis roller 19a Groove 19b Groove 21 Looseness Nut with stop 21a Screw hole 25a Upward tongue 25b Upward tongue 30 Stopper for stopper (push nut)

Claims (3)

(57) [Claims] 1. A base end of a folding door in which two door bodies are connected to each other in a foldable and deployable manner, and pivotally mounted in a fixed position.
A folding door device in which a free end of the folding door is connected to a roller unit movably supported by a guide rail via a pivot means, wherein the guide rail has a storage space opened and closed by the folding door.
The roller unit is laid below the shelf board erected at an intermediate height between the roller unit, a roller unit main body, a mounting body that engages with the main body so as to be able to move up and down within a certain range, and And a spring for urging the main body downward, wherein the mounting body is connected to the free end of the folding door via the pivot means. 2. Both ends of the roller unit main body in the moving direction.
Vertical grooves are formed in the mounting body,
An upwardly extending tongue is fitted in a pair of concave grooves
The roller unit body
2. A connecting screw screwed into a screw hole is provided.
4. The folding door device according to claim 1. 3. The screw hole of the roller unit main body is
With a slack stop that fits into the recess formed on the upper surface side of the main body
Formed from the nut, projecting upward from the nut
A stopper for retaining is provided at the upper end of the connecting screw.
The spring is mounted on the lower end of the connecting screw.
3. The screw is loosely fitted between the portion and the mounting body.
4. The folding door device according to claim 1.