JPH0732812Y2 - Folding door device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a folding door device that uses a folding door in which two door bodies are connected by a hinge so that they can be folded and deployed.

(Prior art and its problems) As a folding door device of this kind, a folding guide device is provided at the upper and lower ends of the folding door, which is formed by connecting two door bodies by hinges so that they can be folded and deployed. A pair of front and rear suspension roller units that mate together are rotatably supported around a vertical axis, and a pair of front and rear steadying roller units that fit into the folding door lower guide rails are provided at the lower front and rear ends of the folding door in the previous period. Is known as a folding door device which is rotatably supported around a vertical axis concentric with the vertical axis.

Such a folding door device does not hang the folding door directly below the hanging guide rail, but hides the hanging guide rail with the folding door, so that the hanging guide is provided at the back of the folding door. It is used when arranging rails, but in the conventional folding door device of this type, when the folding door is moved laterally along the guide rail in a folded state, the folding door tilts so that the upper end of the folding door is delayed, There was a risk that the rollers of the lower steadying roller unit would come off from inside the folding door lower guide rail.

(Means for Solving the Problems) In order to solve the above-mentioned conventional problems, the present invention is to fit the steady-state roller units into the guide groove portion of the folding door lower guide rail before and after fitting. In addition to a pair of vertical shaft rollers for steadying, a horizontal supporting roller that rolls on a flat supporting plate formed on the upper end side of the guide groove is provided, and the steadying roller unit is lifted within a certain range. The present invention proposes a folding door device that is configured to be possible and that is provided with a spring that biases the steady rest roller unit downward.

(Embodiment) An embodiment of the present invention will be described below with reference to the attached exemplary drawings.

In FIG. 1 and FIG. 2, 1 is a folding door composed of two door bodies 2 and 3, and both door bodies 2 and 3 have hinge sides 4 around a vertical axis. It is connected so that it can be folded and expanded. A pair of front and rear suspension roller units 6 and 7 that are movably engaged with suspension guide rails 5 provided on the rear side of the folding door 1 are attached to the upper and lower ends of the folding door 1, A pair of front and rear anti-sway roller units 9 and 10 that fit into the lower folding door guide rails 8 are attached to the lower portions of the front and rear ends of the folding door 1.

As shown in FIGS. 3 to 5, the hanging roller units 6 and 7 have a pair of mounting plates 11 and 12 connected to each other by a vertical shaft 13 so as to be openable and closable with each other. Board 11
And the vertical support shaft 15a fitted and fixed to the upper side of the mounting plate 11,
A pair of front and rear vertical shaft rollers 16a, 16b for precession which are pivotally supported by 15b, and horizontal support shafts 17a, 17b which are concentrically projected left and right at a position near the upper base of the mounting plate 11 are pivotally supported. It consists of a pair of left and right supporting horizontal shaft rollers 18a and 18b, and the hanging roller units 6 and 7 have the hinge 14
The other mounting plate 12 is attached to the rear surfaces of the upper and lower ends of the folding door 1 by wood screws or the like.

The hanging guide rail 5 includes a mounting rail base 19 that is mounted on furniture and the like, and a rail main body 20 that is fitted and fixed to the lower side of the mounting rail base 19 in a height-adjustable manner. Is the roller unit for each suspension
A pair of left and right support rail portions 21a, 21b into which the pair of left and right supporting horizontal shaft rollers 18a, 18b in 6 and 7 are rollably fitted.
And the pair of front and rear vertical shaft rollers 16a and 16b for steady rest are fitted right above the support rail portions 21a and 21b.
Two guide grooves 22 are provided.

The folding door side attachment plate 12 of the hinge 14 is configured to be height adjustable with respect to the roller unit side attachment plate 11.
That is, the bearing cylindrical portion 25 on the mounting plate 11 side moves up and down within a certain range with respect to the vertical shaft 13 penetrating the bearing cylindrical portion 23 on the mounting plate 12 side and fixed to the mounting plate 12 by the fixing pin 24. A support bolt 26, which is loosely fitted so as to support the lower end of the vertical shaft 13 in a concentric state, has a cylindrical portion with a female screw hole on the mounting plate 11 side.
The folding door 1 is pushed through the hinge 27, and the supporting bolt 26 is rotated and raised to push up the folding door 1 through the vertical shaft 13 and the mounting plate 12, and conversely, the supporting bolt 26 is rotated and lowered to rotate the folding door 1. Is configured to descend by gravity. Therefore, a pair of front and rear suspension roller units 6,7
The support bolts 26 of the two front and rear hinges 14 for separately supporting the
By operating up and down, the levelness of the folding door 1 and the overall height can be adjusted. 26a is a support bolt 26
It is a lock nut for fixing.

Further, as shown in FIG. 4, the two suspension roller units 6 and 7 are fitted to each other so that they can be inserted and removed in a direction parallel to the suspension guide rail 5 when they are brought close to each other as shown in FIG. A male fitting piece 27 and a female fitting member 28 are attached. In the illustrated example, the male fitting piece 27 is composed of one pin, and the female fitting member 28 is provided with a pin fitting hole 28a having an opening like a trumpet. Not limited. Reference numeral 29 is a cushioning elastic material fitted to the base of the male fitting piece 27.

As shown in FIG. 6 to FIG. 8, the steady rest roller units 9 and 10 have a hinge 33 having a pair of mounting plates 30 and 31 openably and closably coupled to each other by a vertical shaft 32. The mounting plate 30 and the vertical support shaft 34 at the bent portion of the lower side of the mounting plate 30.
A pair of front-rear vertical shaft rollers 35a, 35b pivotally supported by a and 34b, and one supporting horizontal shaft pivotally supported by a horizontal support shaft 36 projecting to one side at the center position of the lower side of the mounting plate 30. A roller 37, and the steadying roller units 9 and 10 are attached to the back surfaces of the lower ends of the front and rear ends of the folding door 1 via the other attachment plate 31 of the hinge 33 by a wood screw or the like. At this time, the vertical shaft 13 of the hinge 14 and the hinge 3 to which the hanging roller units 6 and 7 are attached are attached.
The mounting plate 31 of the hinge 33 is attached so that the vertical shaft 32 of 3 becomes concentric.

The folding door lower part guide rail 8 is provided continuously with one guide groove portion 38 into which the shake preventing vertical shaft rollers 35a and 35b of the shake preventing roller units 9 and 10 are fitted, and from the upper end of the guide groove portion 38. And a flat support plate portion 39 on which the supporting horizontal shaft roller 37 rolls.

Further, the vertical shaft 32 of the hinge 33 is fixed to the bearing cylindrical portion 40 of the folding door side mounting plate 31 by a pin 41, and the bearing cylindrical portion 42 of the roller unit side mounting plate 30 with respect to the vertical shaft 32. Are fitted so that they can be raised and lowered within a certain range. A compression coil spring 43 is interposed around the vertical shaft 32 between the mounting plates 30 and 31, and the roller unit side mounting plate 30 is biased downward with respect to the folding door side mounting plate 31 by the spring 43. Therefore, the supporting horizontal shaft roller 37 is pressed against the flat supporting plate portion 39 of the folding door lower part guide rail 8,
Vertical shaft rollers 35a, 35b for steadying the guide groove 38
The fitting depth of is constantly regulated.

When setting the folding door 1, the hanging roller unit 6,
Guide rail 5 for suspending each roller 16a, 16b, 18a, 18b of 7
The guide rail 5 for suspension is fitted into the inside thereof from a notch portion, and at this time, the vertical axis roller 35 for steadying of the steadying roller units 9, 10 is provided.
The mounting plate 30 that pivotally supports the a and 35b is lifted against the urging force of the spring 43, and the rollers 35a and 35b are positioned directly above the folding door lower guide rails 8. The rollers 35a, 35 are returned by descending and returning by urging force.
The b must be fitted in the guide groove portion 38 of the guide rail 8.

When setting the folding door 1 as described above, the steady rest roller units 9 and 10 must be lifted up. As shown in FIGS. 9 and 10, the folding door side mounting plate 31 is provided with the hook portion 44. The roller unit side mounting plate 30 is provided with an engaged hole 45 which can be engaged with the hook portion 44 by rotating the mounting plate 30 to the mounting plate 31 side in a state where the mounting plate 30 is lifted to the upper limit. By the engagement between the engaged hole 45 and the hook portion 44, the roller unit side mounting plate 30 can be held at the lifted position.
Not only the work is easy, but also the folding door 1 before setting.
It is possible to prevent the weight of the folding door 1 from acting on the steady rest roller units 9 and 10 when leaning against the floor.

The folding door 1 set between the hanging guide rails 5 and the lower folding door guide rails 8 is the folding door 1 in the state of being folded into a V-shaped plane as shown by the solid line in FIG. By pressing the intermediate connecting portions (the positions of the hinges 4) of the bodies 2 and 3 to develop them into a continuous plane, the opening is closed.
The opening can be opened by folding the adjacent connecting portion (the position of the hinge 4) of the folding door 1 toward the front so as to fold it into a V-shape. Furthermore, in the state where the folding door 1 is folded in this way, the folding door 1 can be moved laterally along the guide rails 5 and 8.

However, as described above, when the folding door 1 is folded in the shape of the plane shape V, when it is expanded in a continuous plane shape, or when it is laterally moved in the folded state, the hanging roller units 6 and 7 and the steady rest roller unit are used. 9, 10 will run along the guide rails 5, 8, but the presence of the pair of front and rear vertical shaft rollers 16a, 16b and 35a, 35b for precession will cause the supporting horizontal shaft rollers 18a, 18b to move. Since the orientations of the mounting plate 11 that supports the shaft and the mounting plate 30 that supports the horizontal shaft roller 37 for support are reliably regulated in the guide rail direction, the roller units 6, 7 and 9 and 10 are smooth. You can drive.

Further, when the folding door 1 is folded into a V-shaped plane and is moved laterally to one side of the opening (one end of the guide rails 5 and 8), the folding door 1 is further moved to the roller units 6 for both suspensions. It is possible to open the opening to the maximum by completely folding it up to the limit position where 7 collide with each other. At this time, as shown in FIG. 4, both suspension roller units 6,
7, the male fitting piece 27 and the female fitted portion 28 are fitted to each other,
Since both the hanging roller units 6 and 7 are integrally combined, when the folding door 1 is laterally moved along the guide rails 5 and 8 in such a folded state, the two hanging roller units 6 and 7 are
However, one roller unit having a pair of left and right supporting horizontal shaft rollers 18a, 18b at two positions separated by an appropriate distance in the front and rear can smoothly run. That is, both the hanging roller units 6 and 7 are prevented from tilting relative to each other to be twisted between the hanging guide rails 5 and the folding door 1 in the folded state can be smoothly moved laterally.

Furthermore, the folding door 1 in the state of being folded to the minimum width as described above.
When moving horizontally along the guide rails 5 and 8, the supporting horizontal axis rollers 18a and 1 in the hanging roller units 6 and 7
Due to the frictional resistance between 8b and the hanging guide rail 5, the folding door 1 tilts so that the upper end side is delayed, and the lower end of the folding door 1 tends to float above the folding door lower guide rail 8. The supporting horizontal shaft roller 37 in the steadying roller units 9 and 10 is constantly pressed against the flat supporting plate portion 39 of the folding door lower guide rail 8 by the urging force of the spring 43, and therefore the steadying horizontal shaft. Rollers 35a, 35b
There is no possibility that the above will be separated upward from the inside of the guide groove portion 38 of the guide rail 8.

The supporting horizontal shaft roller 37 of the steadying roller units 9 and 10 can also be pivotally supported at a position where it rolls on the bottom surface of the guide groove 38 of the folding door lower guide rail 8.

As described above, according to the folding door device of the present invention, when the folding door in the folded state is laterally moved along the guide rail, the upper portion of the folding door tilts and swings so as to be delayed. Even if the lower part of the folding door to which the stopping roller unit is attached floats above the folding door lower part guide rail, the steadying roller unit is constantly urged downward by the spring, and the supporting horizontal axis roller is bent. It abuts on the flat support plate of the lower door guide rail to maintain the fitting depth of the vertical axis roller for steadying against the folded lower door guide rail constant, and the roller is released upward from the folded lower door guide rail. Can be prevented.

Moreover, the supporting horizontal axis roller of the steady rest roller unit does not roll on the bottom surface of the guide groove portion of the folding door lower guide rail, but a flat plate continuously provided on the upper end side portion of the guide groove portion of the guide rail. Since it rolls on the support plate portion, the supporting horizontal shaft roller does not pick up dust accumulated in the guide groove portion, and it is possible to prevent dirt and dust from scattering from the supporting horizontal shaft roller. .

[Brief description of drawings]

FIG. 1 is a schematic plan view illustrating the entire structure of a folding door, FIG. 2 is a rear view of the same, FIG. 3 is a plan view of a hanging roller unit, and FIG. FIG. 5 is a vertical side view of the same, FIG. 6 is a vertical front view of the steady-state roller unit, FIG. 7 is a vertical side view of the same, FIG. 8 is a plan view of the same, and FIG. 9 is a steady-state roller. FIG. 10 is a partially cutaway side view for explaining a modified example of the unit, and FIG. 10 is a plan view of the same. 1 …… folding door, 2,3 …… door body, 4,14,33 …… hinge, 5 ……
Hanging guide rails, 6,7 …… Hanging roller units, 8 …… Folding door lower guide rails, 9,10 …… Steady stop roller units, 13,32 …… Hinge vertical axis, 16a, 16b, 3
5a, 35b …… Vertical axis roller for steady rest, 18a, 18b, 37 ……
Supporting horizontal axis rollers, 21a, 21b …… Supporting rails, 22,
38: guide groove, 39: flat support plate, 43: compression coil spring.

Claims (1)

[Scope of utility model registration request] 1. A pair of front and rear suspension roller units, which are movably engaged with suspension guide rails, are provided at the upper and lower ends of the front and rear ends of a folding door in which two doors are folded and connected by hinges. A pair of front and rear steady-state roller units, which are rotatably supported around a vertical axis and are fitted to the folding door lower part guide rails, are provided at the lower front and rear ends of the folding door around a vertical axis concentric with the vertical axis. In the folding door device which is rotatably supported by the above-mentioned, each of the precession roller units includes a pair of front and rear precession vertical shaft rollers for fitting in the guide groove portion of the folding door lower guide rail. In addition, a supporting horizontal shaft roller that rolls on a flat supporting plate portion formed on the upper end side of the guide groove is provided, and the steadying roller unit is configured to be able to move up and down within a certain range, and the steadying Roller Door device broken comprising comprising providing a spring for urging the unit downward.