JP2905854B2 - Folding door device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a folding door in which two door bodies are foldably connected to each other so that the base end of the folding door is pivotally connected to one side of an opening. The present invention relates to a folding door device pivotally attached to a movable body movably engaged with a guide rail disposed inside a folding door in a deployed posture for closing the opening.

[0002]

2. Description of the Related Art A folding door device of this kind is
In comparison with a folding door device of a type in which a vertical axis roller supported vertically above and below a free end of a folding door is directly guided by a guide rail, the guide rail is also arranged on the lower side of an intermediate shelf plate in the opening. It has the advantage of being able to cover the upper and lower sides of the folding door in the unfolded position on the outside of the sill and dolly of the opening. In the folding door device, a large one-axis flat hinge with a long vertical support shaft is used as a pivoting means at the free end side of the folding door, and the folding door is pivoted by the pivoting means at the base end side of the folding door. In the state where the base end portion is supported by the side plate of the opening or the like, it must be configured so that the movable body attached to the free end portion of the folding door via the pivot means can be engaged with the guide rail. The structure becomes complicated, and the overall cost increases. There was that drawback.

[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. A folding door 1 in which two door bodies 2 and 3 are connected to each other in a foldable and expandable manner, a folding door base end side pivoting means 12, a folding door free end side pivoting means 15, It has a guide rail 13 and a movable body 14, and the folding door base end side pivoting means 12 is provided with one side of the opening 5 closed by the folding door in the deployed posture Y and the base end 1A of the folding door 1. The guide rail 13 is disposed inside the folding door 1 in the deployed posture Y that closes the opening 5, and the movable body 14 is movably engaged with the guide rail 13, The folding-door free-end side pivoting means 15 is a free-end portion 1B of the folding door 1.
And the movable body 14 are swingably connected to each other. The movable body 14 is a roller that can be inserted and removed only from an end of the guide rail 13 and is movably fitted to the guide rail 13. Unit 16 and an arm base 17 extending from the roller unit 16 to the folding door side
And an arm tip 18 pivotally connected by a vertical support shaft 38 of the folding door play end side pivoting means 15. The arm base 17 and the arm tip 18 are detachably connected to each other, and the roller The unit 16 includes the guide rail 13
And a pair of vertical axis rollers 19a and 19b in the length direction and one horizontal axis roller 20. The folding door free end side pivoting means 15 can swing the movable body 14 around a vertical support shaft 38. The movable body 14 is pressed against the horizontal surface of the pivoting means 15 (the upper surface of the lower bearing plate portion 37a below the mounting member 36). The structure is provided with a spring 39.

In implementing the folding door apparatus of the present invention, the arm base 17 and the arm tip 18 are detachably connected to each other by a single screw 31 in a state where they are overlapped with each other. A stopper (a rising piece 27) for preventing relative rotation between the base 17 and the arm tip 18 can be provided.

The arm base 17 can be integrally protruded from the roller unit 16 or can be attached to the roller unit 16 with a plurality of screws. As a method for performing this, for example, the vertical axis roller 19 in plan view is used.
A tongue piece insertion hole 23 is provided on the roller unit 16 side at a position overlapping with the a and 19b, and a tongue piece 24 to be inserted into the insertion hole 23 is provided in the arm base 17. The inserted tongue piece 24 can be fixed to the roller unit 16 by a vertical pin 25 supporting the vertical shaft rollers 19a and 19b.

Further, the folding door play end side pivoting means 15 is provided.
A spring 39 is provided for urging the movable body 14 pivotally mounted on the vertical support shaft 38 in one of its swinging directions. The pair of vertical shaft rollers 19a and 19b are urged by the spring 39. The guide rail 13 can be configured to be in pressure contact with the facing groove surfaces.

The guide rails 13 can be attached to the upper and lower sides of the opening 5 (eg, a ditch section and a sill section). The movable body 1 is attached to the lower side of the plate 11.
Of the arm base 17 and the arm tip 18 of the intermediate shelf 1
1 can be composed of a horizontal plate.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 to 4, reference numeral 1 denotes a folding door, and two door bodies 2 and 3 of the same size. Are pivotally connected by a plurality of hinges 4 between a folding posture X shown by a virtual line in FIG. 1 and a deployed posture Y shown by a solid line in FIG. 5 is a storage space 1 constituted by a side plate 6, a floor plate 7, a top plate 8, and an intermediate partition plate 9.
0, and each opening 5 is in the unfolded posture Y
Is closed by the folding door 1. An intermediate shelf 11 is installed in the storage space 10. The intermediate partition plate 9
Opening 5 of one storage space 10 with no folding door 1
The opening 5 of one storage space 10 without the intermediate partition plate 9 may be opened and closed by two folding doors 1 supported respectively by left and right side plates 6. May be.

A base end 1A of the folding door 1 is supported by a plurality of pivoting means 12 on a side plate 6 which is one side of the opening 5 so as to be openable and closable. The pivoting means 12 may be of any type such as a link-type hinge, but in the illustrated example, the mounting plate 12a is attached to the inner surface of the side plate 6 and the back surface of the door main body 2 at the folding door base end 1A. 1 in which an L-shaped mounting plate 12b to be mounted is pivotally connected to a vertical support shaft 12c.
The vertical hinge 12c (the swing center) is located outside the outer corner of the folding door base end 1A, and when the folding door 1 is in the deployed posture Y, the folding door base end 1A. Into the inside of the side plate 6.

A guide rail 13 is attached to a bottom surface near the front edge of the intermediate shelf board 11, and a movable body 14 movably engaged with the guide rail 13 and a free end 1B of the folding door 1 are pivotally connected. They are connected by means 15. Movable body 1
4, as shown in FIGS. 5 to 7, a roller unit 16 that is movably fitted into the guide rail 13, an arm base 17 that is coupled to the roller unit 16 and protrudes forward from the inside of the guide rail 13. , This arm base 17
The roller unit 16 includes a pair of vertical shaft rollers 19a, 19b in the moving direction, and both rollers 19a, 19b.
And one horizontal axis roller 20 located in the middle of the axis.

The guide rail 13 regulates the attitude of the movable body 14 in a plan view via a pair of vertical axis rollers 19a and 19b of the roller unit 16, and the movable body 14 via a horizontal axis roller 20 of the roller unit 16. 1
The upper half in the vertical section is fitted in a groove formed on the lower surface of the intermediate shelf 11, and the intermediate shelf is mounted via the mounting projection 21. Board 11
A slit 22 through which the arm base 17 penetrates is provided on the front side of the lower half part protruding from the intermediate shelf board 11 and fixed to the lower side surface of the arm. Further, the roller unit 16 can be inserted and removed only from the end of the guide rail 13.

The structure of the movable body 14 will be specifically described.
As shown in FIGS. 5 and 6, the roller unit 16 is formed with a pair of tongue piece insertion holes 23 below the pair of front and rear vertical shaft rollers 19a and 19b, and is inserted into the pair of tongue piece insertion holes 23. A possible pair of tongue pieces 24 is protruded from the arm base 17, and the pair of tongue pieces 24 is inserted into the pair of tongue piece insertion holes 23 on the roller unit 16 side. 2 to support 19b
Each of the vertical pins 25 is driven and fixed, so that the vertical pin 25 has a pin hole 2 formed in the tongue piece 24.
6, the roller unit 16 and the arm base 17
And are combined.

The arm base 17 and the arm tip 18 are made of a horizontal plate. When the arm base 17 and the arm tip 18 are overlapped, a screw insertion hole 29 on the arm tip 18 side and the arm The two are detachably connected by a single screw 31 using the screw hole 30 on the base 17 side. At this time, a pair of rising pieces 27 formed by bending both left and right sides of the arm tip 18 upward are provided as stoppers for preventing the both from rotating relative to the screw 31. Rising piece 27
The connecting plate portion 28 on the arm base 17 side is fitted between them. Instead of the screw hole 30, a nut screwed into the screw 31 may be used, or a pair of rising pieces 27 may be provided on the arm base 17 side, and a connecting plate portion fitted between the pair of rising pieces 27. 28 to the arm tip 18
It may be provided on the side. Further, the stopper portion may be constituted by a projection provided on one of the arm base portion 17 and the arm tip portion 18 and a hole provided on the other so as to fit the projection. Is not limited.

The arm tip 18 of the movable body 14 is swingably connected to the free end 1B of the folding door 1 by the pivot means 15. As shown in FIGS. 4 and 5, the pivoting means 15 includes an attachment member 36 attached to the back surface of the door body 3 inside the inner corner at the free end 1B of the folding door 1,
A pair of upper and lower bearing plate portions 37 of the mounting member 36
a movable shaft 14 having a vertical support shaft 38 and a torsion coil spring 39, wherein a pin hole 40 provided in the arm tip 18 of the movable body 14 is provided with a pin hole 40. A torsion coil spring 39 loosely fitted to the vertical support shaft 38 above the arm tip 18 and the arm tip 18 to the lower bearing plate 3
7a is pressed against the horizontal surface. Then, the movable body 14
Tilting of the roller unit 16 around the axis of the horizontal roller 20 is prevented by the contact between the lower bearing plate 37a of the mounting member 36 and the arm tip 18, and the movable body 14 is substantially horizontal. Is held in the posture.

The torsion coil spring 39
Are fixed at both ends to the mounting member 36 and the arm tip 18, thereby applying a unidirectional rotational force around the vertical support shaft 38 to the movable body 14 via the arm tip 18. As a result, the pair of vertical shaft rollers 19a and 19b of the movable body 14 (roller unit 16)
, Respectively, to prevent the movable body 14 from rattling against the guide rail 13.

When assembling, the arm base 17 and the arm tip 18 of the movable body 14 are separated from each other, and the roller unit 16 of the movable body 14 is fitted into the guide rail 13 from the end of the guide rail. 13 is attached to the lower side of the intermediate shelf 11, and the pivoting means 15 supporting the arm tip 18 with the vertical support shaft 38 is connected to the free end 1 of the folding door 1.
B is attached at a predetermined position. After the base end 1A of the folding door 1 is supported on one side (side plate 6) of the opening 5 by the pivoting means 12 so as to be openable and closable, the arm base 17 on the guide rail 13 side of the movable body 14 and What is necessary is just to connect and integrate the arm tip 18 on the pivoting means 15 side with the screw 31 as described above.

As shown in FIG. 1, the guide rail 13 in the illustrated example is entirely linear, and is closer to the folding door opening end side (the end on the folding door base end 1A side) 13a than to the folding door. The end in the closing direction (the end on the side of the folding door 1B) 13b is attached in an inclined state in a plan view so that it enters into the inner side of the opening 5.

That is, as shown by the imaginary line in FIG. 1, the folding door 1 fully opens the opening 5 and projects forward from the opening 5 at right angles to the folding door opening movement end 13a of the guide rail 13. Alternatively, the movable body 14 is positioned so as to take a folding posture X slightly opened outward, and the end 13b of the guide rail 13 on the folding door closing movement direction is a folding door 1 as shown by a solid line in FIG. To position the movable body 14 at a position where the movable body 14 is in the deployed posture Y that closes the opening 5,
It is located on the inside of the opening 5 with respect to the folding door opening movement side end 13a.

According to the above configuration, when the folding door 1 in the folding posture X shown by the imaginary line in FIG. 1 is closed along the guide rail 13 to the deployed posture Y, the door 1 is separated from the opening 5 to the outside. When the folding door 1 is in the unfolded position Y, the opening 5 can be completely closed. At this time, the folding door play end portion 1B is covered in front of the intermediate partition plate 9.

The guide rail 13 is entirely open as in the prior art, depending on the structure of the folding door base end side pivoting means 12 and the folding door free end side pivoting means 15 and the relationship of the swing center position thereof. It may be a straight line parallel to 5, or may be provided with inclined regions at both ends or at the middle.

In the above embodiment, the guide rail 13 is attached to the lower side of the intermediate shelf 11. However, even when the intermediate shelf 11 is not provided or the intermediate shelf 11 is provided, the guide rail 13 is attached to the opening 5. Can be attached to the sill (the floor plate 8 side) and the Kamoi (the top plate 7 side). In this case, a pair of upper and lower movable bodies 14 engaging with each guide rail 13 are pivotally connected to the upper and lower two places of the folding door free end 1B.
5 will be connected.

[0022]

As described above, according to the folding door apparatus of the present invention, the movable body for guiding the free end of the folding door can be inserted and removed only from the end of the guide rail and movably fitted to the guide rail. A roller unit to be combined, an arm base extending from the roller unit to the folding door side, and an arm tip end pivotally connected by a vertical support shaft of the folding door free end side pivoting means, wherein the arm base and Since the distal end of the arm is detachably connected to each other, the folding door play end side pivoting means supports the other end of the movable body having one end supported by the guide rail so as to be swingable about a vertical axis. It is not necessary to use a one-axis flat hinge type, which requires a certain height to support the entire movable body so that it can oscillate horizontally in a fixed posture as in the past. Pivoted to the door free end A stage can be configured to a very small state in the vertical direction of the space occupied.

Therefore, even when an object stored in the storage space opened and closed by the folding door is approaching the folding door opening / closing path, the stored object is pivotally attached to the movable body or the free end of the folding door. Thus, the possibility of contact with the pivoting means is reduced, and the utilization efficiency of the storage space can be improved. Moreover, the structure of the movable body itself is simpler than in the conventional case where the roller unit portion of the movable body must be configured to be able to be fitted and disengaged from the guide rail so that it can be implemented at low cost. it can.

Further, at the time of mounting the folding door, a guide rail in which only the roller unit side of the movable body is fitted in advance is attached to a predetermined position, and the free end of the folding door on which the arm tip of the movable body is supported. After the base end of the folding door is supported on one side of the opening by the pivoting means in a state where the side pivoting means is attached to a predetermined position of the folding door free end, the arm tip on the folding door side and Since the arm bases on the movable body side may be connected to each other, the work of mounting the folding door can be easily performed.

Further, the movable body needs a pair of vertical axis rollers in the length direction of the guide rail in order to regulate the posture in a plan view by the guide rail.
At least one horizontal axis roller is required to keep the moving level of the movable body on the guide rail side constant.
However, providing a pair of the horizontal axis rollers in the guide rail length direction also increases the width of the movable body in the guide rail length direction and shortens the entire length of the moving path of the movable body,
The folding door cannot be folded or unfolded to a predetermined posture.

However, according to the configuration of the present invention, the movable body is pressed against the horizontal surface of the pivoting means, even though one horizontal shaft roller is supported by the roller unit of the movable body. Since the spring is provided, the movable body can be prevented from tilting around the horizontal axis roller. Moreover, the structure is simple and inexpensive as compared with a case where a cylindrical body which is fitted to the vertical axis of the folding door free end side pivoting means so as to be vertically movable is fixedly connected to the tip of the arm by welding or the like. it can.

According to the configuration of the second aspect, the connecting operation between the arm base and the arm tip can be performed extremely easily and easily with only one screw. Further, according to the configuration of the third aspect, the coupling between the roller unit of the movable body and the arm base can be performed by using the vertical pin that supports the vertical axis roller, thereby reducing the number of parts and reducing the cost. Can be achieved.

According to the structure of the fourth aspect, the pair of vertical shaft rollers of the movable roller unit are respectively provided on the opposed groove surfaces of the guide rail by the spring provided in the folding door free end side pivoting means. As a result, the movable body does not rattle with respect to the guide rail, and noise caused by the rattle of the movable body with respect to the guide rail when the folding door is opened and closed is eliminated. Incidentally, as shown in the embodiment of the present invention, the spring for pressing the movable body on the horizontal surface of the pivot means is a torsion coil spring, so that the spring in the configuration according to claim 4 is also used. Can be done.

The folding door apparatus of the present invention can be used for opening and closing a storage space provided with an intermediate shelf. In this case, the structure as described in claim 5 is more effective.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of the entire folding door device.

FIG. 2 is a front view of an embodiment in which two folding door devices are juxtaposed.

FIG. 3A is a cross-sectional plan view showing details of a folding door free end side, and FIG. 3B is a cross-sectional plan view showing details of a folding door base end side.

FIG. 4 is a vertical sectional side view showing details of a guide structure of a folding door free end;

FIG. 5 is an exploded plan view of a movable body for engaging a free end of the folding door with a guide rail.

FIG. 6 is an exploded longitudinal side view of the movable body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Folding door 1A Folding door base end 1B Folding door free end 2, 3 Door main body 4 Hinge 5 Opening opening and closing of folding door 6 Opening side plate supporting folding door 11 Intermediate shelf plate 12 Folding door base end side pivot Attachment means 13 Guide rail 14 Movable body 15 Folding door play end side pivoting means 16 Movable roller unit 17 Movable body arm base 18 Movable body arm tip 19a, 19b Vertical axis roller 20 Horizontal axis roller X Folding door Folding position Y Opening position of folding door

Claims (5)

(57) [Claims] 1. A folding door in which two door bodies are connected to each other so as to be foldable and deployable, a folding door base end side pivoting means, a folding door free end side pivoting means, a guide rail, and a movable body. The folding door base end side pivotally connecting means swingably connects one side of an opening closed by the folding door in the deployed position and the base end of the folding door, and the guide rail is connected to the opening by the opening. The movable body is movably engaged with the guide rail, and the folding-door free-end side pivoting means includes a free end of the folding door and the movable body. A movable unit, wherein the movable body can be pulled out and inserted only from an end of the guide rail, and is fitted to the guide rail so as to be movable. An arm base extending to the door side, and the folding door free end side pivotally connected An arm tip pivotally connected by a vertical support shaft of the means, the arm base and the arm tip are detachably connected to each other , and the roller unit is disposed in a longitudinal direction of the guide rail.
Equipped with a pair of vertical axis rollers and one horizontal axis roller
The folding door free end side pivoting means is configured to move the movable body to a vertical support shaft.
Swingable around and up and down along the vertical support axis
Pivotally move the movable body on a horizontal plane of the pivoting means.
Folding door device equipped with a spring that presses against the door. 2. The arm base and the arm tip are detachably connected by a single screw in a state where they overlap each other, and prevent the arm base and the arm tip from relatively rotating around the screw. The folding door device according to claim 1, further comprising a stopper portion. 3. The roller unit is provided with a tongue piece insertion hole at a position overlapping the vertical axis roller in a plan view, and the arm base is provided with a tongue piece inserted into the insertion hole. 3. The folding door device according to claim 1, wherein the tongue piece inserted into the insertion hole is fixed to the roller unit by a vertical pin that supports the vertical axis roller. 4. The movable body according to claim 1, wherein the folding door play end side pivoting means is provided with a movable body.
A spring that urges the
The pair of vertical shaft rollers by the urging force of the spring
Are pressed against the opposing groove surfaces of the guide rail, respectively.
Folding door apparatus according to any one of claims 1 to 3 was. 5. The guide rail is provided below the intermediate shelf.
The base of the arm and the tip of the arm of the movable body are in the middle
The folding door device according to any one of claims 1 to 4, comprising a horizontal plate parallel to the shelf plate .