JPH0643773B2 - Railing device for folding doors - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a rail device, and more particularly to a folding top suspension shutter,
TECHNICAL FIELD The present invention relates to a railroad device for a folding door, which can be widely applied to folding doors such as indoor folding partitions and folding doors whose doors are opened and closed.

(Background Art) Conventionally, for example, a folding top suspension shutter is disclosed in Japanese Patent Publication No. 50-27.
As illustrated in No. 663 and No. 59-122368 of Shokai, the upper and lower ends of each shutter door body are inserted into the upper and lower rails in a wrapped manner, and each such shutter door body travels as a door car. In the door case part, which is rotatably connected to the upper suspension connecting frame and has a vertical rail on one end side cut out and a plate is provided, the shutter door body is sequentially escaped from the vertical rail and folded. It was supposed to have such a structure.

Therefore, in this type of folding top suspension shutter, since all shutter doors are moved to the door pocket side and sequentially folded, the opening and closing is heavy, and even if a small opening is obtained, the whole is pushed open. On the other hand, since the door pocket is indispensable, an unnecessary plate has to be always installed when the shutter is closed.

(Object of the Invention) In the present invention, instead of such a conventional folding door, a door pocket portion is not required, and only the necessary door can be folded and opened and closed, while the end portion of the door body holds the rail when it is closed. It is an object of the present invention to provide a railroad device for a folding door, which is optimal for a folding door that is stably held in a fixed shape.

(Structure of the Invention) For the above purpose, the present invention provides an upper and lower or lower rail device for a folding door as an inner rail and an outer rail.
The inner rail is movable in the longitudinal direction and is inserted so that it can be projected and retracted, and this movement and projection and depression are performed by using the pressing force when the folding door is opened and closed. The sinking is performed by an inner / outer rail projecting / withdrawing guide device provided in the outer rail, that is, the present invention is directed to a long groove-shaped inner rail having pressure receiving portions at both ends in the longitudinal direction. Is inserted into the groove of an outer rail having a groove shape slightly longer than the inner rail, and between the inner and outer rails, a pair of inner rail protruding / withdrawing guiding devices including an inclined guiding portion and a guided portion is provided. A foldable door which is installed at a plurality of positions in the outer rail groove, and wherein the pressure receiving portion of the inner rail can be brought into contact with the pressing portion of the folding door guided in the inner rail groove. The main point is the rail device for doors.

Hereinafter, the present invention will be described with reference to the drawings showing examples.
In the figure, 1 is a railroad device for a folding door according to the present invention. In this embodiment, the railroad device 1 includes an inner rail 3 at a lower frame position of a folding door 2.
The outer rail 4 and the inner rail projecting / retracting guide device 5 are formed.

The folding door 2 of this example is formed by arranging ten door bodies 10 side by side in a frame body formed by arranging upper and lower frames 6 and 7 and left and right vertical frames 8 and 9 on four sides. The door body 10 includes upper, lower, left and right frames 11, 12,
13, 14 and the middle belt 15 are framed, and a glass panel 16 is fitted and held therein, and each door body 1
A connecting frame is placed between 0s, and adjacent door bodies 10, 10
10 is rotatably hingedly connected (connecting portion 18). Further, every other one of the connecting frames 17 is provided with an upper hanging door wheel 19 at the upper end so that the upper rail 6 can be freely traveled on the guide rails 20 of the upper frame 6 while a guide roller 21 is provided at the lower end of the upper hanging connection frame. A guide for fitting is provided in the inner rail 3 described below. A steady rest 22 is provided at the upper and lower ends of the other connecting frame. As described above, the 10 doors are hingedly connected via the connecting frame 17, and the doors 10 ... Suspended above the upper frame so that they can travel freely can be folded and opened in a bellows shape by laterally pulling them sideways. .

The inner rail 3 and the outer rail 4 together form the lower frame 7 of the folding door 2.

That is, the inner rail 3 is a long member having a groove shape, and the cross-sectional shape is such that the lower portions of the front and rear side plates 23 and 24 are integrally connected and formed by the horizontal connecting bottom plate 25 so that the inner rail 3 has a substantially H-shaped or inverted U-shaped upward opening. The rail groove 26 is formed, and the front and rear side plates 23, 2 are formed.
The upper ends of 4 are horizontally extended in the front-rear direction (that is, outside the groove opening) to integrally form front-rear horizontal fin portions 27, 28.

The groove-shaped inner rail 3 is formed by extruding an aluminum alloy and integrally molded to have a uniform length in cross section, and then is provided with pressure receiving portions 29 at both ends in the longitudinal direction. The pressure receiving portion 29 is made of an aluminum alloy extruded material having a U-shaped cross section and is cut into a relatively short length in accordance with the groove depth of the inner rail groove 26.
Inserted into both ends of the inner rail groove 26 in the longitudinal direction with screws (Fig. 3).
0) and is integrally provided on the inner rail 3.

Next, the outer rail 4 is a groove-shaped material formed by extruding an aluminum alloy and is slightly longer than the inner rail 3. The cross-sectional shape of the outer rail 4 extends from the front and rear ends of the bottom plate 31 to the front and rear side plates 32, 33.
Are formed integrally with each other to form an outer rail groove 34 having a substantially U-shaped upward opening, and the upper ends of the front and rear side plates 32 and 33 are slightly extended to the inside of the groove opening so that the front and rear horizontal fin portions are formed. 35 and 36 are integrally molded. The outer rail 4
Has both longitudinal ends fitted into the lower ends of the U-shaped groove-shaped left and right vertical frames 8 and 9, and is fixed by tapping screws 37 to form a frame.

Then, the inner rail 3 is fitted in the groove 34 of the outer rail 4. That is, the front-rear width of the opening of the outer rail groove 34 is formed to be slightly wider than the outer dimensions of the front and rear side walls of the inner rail 3 so that the inner rail is fitted from above, and the horizontal fin portions 27, 28 of the inner rail 3 are fitted to the outer rail. 4 horizontal fin portions 35,
It can be placed on 36.

Since the outer rail 4 is slightly longer than the inner rail 3, the inner rail 3 fitted in the outer rail groove 34 can move a little in the longitudinal direction. Here, the longitudinal dimension difference between the rails 3 and 4 is set to a horizontal component or more of the tilt guiding length in the tilt guiding portion 39 of the inner rail projecting and retracting guiding device 5, which will be described later. Also,
A series of bulging portions 38 in the longitudinal direction are formed at the tips of the horizontal fin portions 35, 36 of the outer rail 4 toward the inner side of the groove opening. As such, it reduces the friction between the two rails.

Then, between the inner and outer rails 3 and 4 thus fitted to each other, a plurality of inner rail protrusion / retraction guide devices 5 each having an inclined guide portion 39 and a guided portion 40 are installed in the outer rail groove 34. It is installed in a place.

That is, the inner rail thrusting / retracting guide device 5 of the present embodiment includes a tilt guide portion 39, which is a tilt block made of synthetic resin, fixed to the bottom plate 31 of the outer rail 4 and lower portions of the front and rear side plates 23 and 24 of the inner rail 3. The guided portion 40, which is a door roller that is rotatably fixed, is configured as a pair. Further, the arrangement is such that it is installed in the outer rail groove 34 in the vicinity of both left and right longitudinal end portions and on the front and rear sides, that is, in the front and rear and left and right, in total, at four positions across the inner rail 3.

It is to be noted that the connected door bodies 10 ... Are movable in the opening and closing direction between the left and right vertical frames 8 and 9 with the horizontal component of the tilt guiding length of the tilt guiding portion 39 or more, in the extended state. In the present embodiment, the left end suspension base frame 42 holds a movable amount (clearance) for this amount in the left vertical frame 8. Here, the suspension base frame 42 is biased in the closing direction by a biasing device 50, which will be described later, interposed between the suspension base frame 42 and the left vertical frame 8.
The movement is possible by laterally pulling against the biasing force or conversely entrusting the biasing force.

On the other hand, the pressure receiving portion 29 of the inner rail 3 has the inner rail groove 26
The pressing portion 41 of the folding door 2 guided inside can be freely contacted.

That is, the pressing portion 41 of the folding door is pivotally connected to the left and right ends of the door bodies 10 ...
8) The respective lower end portions of the left end suspension base frame 42 and the right end door contact frame 43 thus formed correspond to this, and these can be brought into contact with the pressure receiving portion 29 of the inner rail 3. Here, both the hanging base frame 42 and the door stop frame 43, which are the pressing portions 41 of this example, are provided with an upper hanging door wheel 19 at the upper end thereof so that the upper hanging door frame 19 can travel freely on the guide rails 20 of the upper frame 6, and It is an upper suspension bearing end frame that travels in the inner rail groove 26 via a guide roller 21 provided at the lower end.

By the way, the operation state of the rail track device 1 will be described. First, when the folding door 2 is closed, the right end door contact frame 43
Is pulled laterally in the closing direction to extend each door body 10 folded in a bellows shape, and further, the pressing portion 4 of the door stop frame 43.
1 is brought into contact with the pressure receiving portion 29 of the inner rail 3 to press it. As a result, the inner rail 3 moves in the outer rail groove 34 in the closing direction of the door body. At this time, the door roller 40, which is the guided portion of the inner rail projection / withdrawal guidance device 5, of the tilt block 39, which is the tilt guiding portion. The inner rail 3 is guided by the slope and rises, and the inner rail 3 projects upward from the outer rail groove 34. And the inner rail groove 2
A guide roller 21 provided at the lower end of every other connecting frame 17 and a steady rest 22 provided at the lower part of the lower frame 12 of the door body 10 and at the lower ends of the other connecting frames 17 are fitted into each of the six (6). (See Figure 3).

On the other hand, when the folding door 2 is opened, if the arbitrary door body 10 or the right end door contact frame 43 or the like is pulled horizontally in the opening direction, the other pressing portion 41, the left end suspension base frame 42, is on the left side of the inner rail 3. The pressure receiving portion 29 is brought into contact with and pressed. As a result, the inner rail 3
Moves in the outer rail groove 34 in the opening direction of the door body 10,
At this time, the door roller 40 that is the guided portion of the inner rail protrusion / induction guidance device 5
Is guided by the inclined surface of the inclined block 39 serving as an inclination guide portion and descends, and the inner rail 3 is retracted and housed in the outer rail groove 34. The guide rollers 21 provided at the lower end of every other connecting frame 17 are still fitted into the groove, but are provided at the lower part of the lower frame 12 of the door body 10 and at the lower ends of the other connecting frames 17. The steady rest 22 is released at the same time in the fitted state over the entire range (see FIG. 4). As a result, every other connecting frame 17 suspended above and provided with the guide roller 21 at the lower end is guided by the inner rail groove 26 and is movable in the opening direction, and each door body 10 and other connecting frames are connected. 17 is detached from the inner rail groove 26 at an arbitrary position and can be projected forward or backward, so that each door body 10 can be folded into a bellows shape (see FIGS. 4 and 5). In the figure, reference numeral 51 is a ground level, and the front and rear horizontal fin portions 35 and 36 of the outer rail and the front and rear horizontal fin portions 27 and 28 of the inner rail that are immersed in the outer rail groove 34 are substantially flush with this. There is.

In this example, the upper frame 6 is also provided with substantially the same rail device so as to operate upside down with respect to the rail folding of the lower frame (see FIGS. 3 and 4). Is an inner rail in the upper frame (however, the inner rail 44 does not fit and hold the end portion of the door body 10 into the groove, but holds the upper end portion of the door body from one side of the front and rear).
Is an L-shaped angle serving as a pressure receiving portion provided at both ends of the inner rail 44 in the longitudinal direction, 46 is an outer inclination, 47 is an outer rail groove, and 48 is a synthetic resin inclination which is an inclination guide portion of an inner rail protrusion / induction guide device. Blocks 49 are door rollers that are rotatably fixed to the inner rail 44, and the inner rail projection / withdrawal guide device is provided in the outer rail groove 47 near both longitudinal ends.

On the other hand, reference numeral 50 in FIG. 5 is a leaf spring type urging device, and the urging device 50 is interposed between the left end suspension base frame 42 and the left vertical frame 8 to close the door body 10. Is urged. As a result, each of the extended door bodies 10 ... When closed is constantly extended in the closing direction, and the pressing portion 41 of the right end door contact frame 43 continues to press the pressing receiving portion 29 of the inner rail 3. It will be.
Therefore, the inner rail 3 does not return to the opening direction to descend due to an unexpected momentum such as vibration, and the door body 10 does not open unexpectedly. On the other hand, when opening the door body 10,
The inner rail 3 may be reversely operated by laterally pulling the door body 10 and the door stop frame 43 with a force exceeding this urging force. If the door bodies 10 are opened once, the urging range of the urging device 50 is limited, and the left end suspension base frame 42 is regulated and stored in the left vertical frame 8. The amount by which the opened door bodies 10 are pushed back is small, and the opening width of the folding door 2 is sufficiently maintained. Of course, since the inner rail 3 is not directly related to the urging device 50, the inner rail 3 maintains the lowered state when the door bodies 10 are open.

In addition, as another embodiment of the inner rail thrusting / retracting guide device, an inclined guide portion that is an inclined groove formed or fixed to one of the inner and outer rails and a guided portion that is a pin that fits into the inclined groove may be used, or For example, it is possible to form the slant block or slant vanes, which are respectively formed or fixed on one of the inner and outer rails, by the slidable contact arrangement of both slant surfaces of the slant guide portion and the guided portion. In addition, as for the arrangement of the inner rail thrusting / inducing device, in addition to being installed at a total of four places in the outer rail groove as shown in the figure, for example, only the central portion in the front-back direction in the groove, and the left and right longitudinal end portions thereof. It is also possible to dispose only at a total of two locations in the vicinity.

Further, the pressing portion of the folding door may be an end frame member such as an airtight material or a synthetic resin door stop block fixed to the top suspension support end frame, as well as the above-mentioned top suspension support end frame. On the other hand, the pressure receiving portion provided on the inner rail is sufficient if it can receive the opening / closing force of the folding door guided in the inner rail groove. For example, by fixing the L-shaped angle member to the inner rail end, The longitudinal end opening of the groove may be crossed.

Next, in the form of a folding door equipped with such a rail device, in addition to linearly guiding the upper hanging door roller and the lower end guide roller of the door body as shown in the figure, the inner and outer rails of the upper frame and the lower frame are circular arcs. It is also possible to guide along this as an isocurve.

Further, when the folding doors are opened together, the rail devices may be arranged to face each other on the left and right, and when the folding doors are connected, these may be arranged in series. Further, the railroad device of the present invention can be applied to a folding door having two door bodies such as a folding door for a bathroom, in addition to one having a large number of door bodies as shown in the figure.

The rail device of the present invention may be formed only on the lower frame or the upper frame of the folding door, or the upper and lower frames may be provided with similar devices. Here, in the case where the railroad device is formed only on the upper and lower one frames, the front or rear wall portion of the frame holding the door body end portion is used as a detaching means from the other frame of the door body upper and lower end portion. It is possible to appropriately select and use one that can be opened and closed by vertical rotation.

Although the embodiments are configured as described above, it is needless to say that the present invention can be variously implemented without departing from the gist and is not limited to the above embodiments.

(Effects of the Invention) The present invention inserts a long groove-shaped inner rail having pressure receiving portions at both ends in the longitudinal direction into a groove of a groove-shaped outer rail slightly longer than the inner rail. Between the inner and outer rails, a pair of inner rail thrusting and retracting guiding devices each having an inclined guiding portion and a guided portion are installed at a plurality of positions in the outer rail groove, and the pressure receiving portion of the inner rail is Since it can be contacted with the pressing part of the folding door that is guided in the inner rail groove, the folding door that is guided in the inner rail groove can be closed due to the inner rail collapsing and retracting due to the inner rail collapsing / inducing device. In the formed state, the end of the door body is stably held in the inner rail groove in a wrapped state, and the held state can be released when the door is opened. There is no need to move and fold sequentially, for example, you can fold from the door stop side, so open and exit only the required number It can be opened and closed easily.

Further, in this way, since the holding state of the door body can be released as a whole, a special door pocket part for recessing the floor surface and installing a door pocket plate is unnecessary, and if the folding door is closed. There is no dead space over the entire length near the door, and the floor area can be effectively used.

Furthermore, by using the railroad device of the present invention, it is possible to form a folding door that travels in a curved shape, and the holding state of the door body can be released as a whole. It can be opened and closed easily.

Since the rail device of the present invention can freely contact the pressure receiving portion of the inner rail with the pressing portion of the folding door that guides the inside of the inner rail groove, the inner rail extends and retracts when the folding door is opened and closed. The operation can be performed by using a pressing force of, which can be a series of horizontal pulling operation of the folding door, and can be easily used.

[Brief description of drawings]

The drawings show embodiments, FIG. 1 is a front view of a folding door equipped with the rail device of the present invention, FIG. 2 is a partially cutaway perspective view of the rail device of the present invention, and FIG. FIG. 4 is a vertical sectional view showing a closed state of a folding door equipped with a railroad device of the invention, FIG. 4 is a vertical sectional view showing the same opened state, and FIG. 5 is a horizontal sectional view showing a partially opened state. 1 ... Rail device for folding door, 29 ... Press receiving part 2 ... Folding door, 34 ... Outer rail groove 3 ... Inner rail, 39 ... Inclination guide part 4 ... Outer rail, 40 ... ... Guided part 5 ... Inner rail thrusting / inducing device, 41 ... Pressing part 26 ... Inner rail groove, 42, 43 ... Upper suspension bearing end frame

Claims (5)

[Claims] 1. An inner-outer rail is formed by inserting an elongated groove-shaped inner rail having pressure receiving portions at both ends in the longitudinal direction into a groove of an outer rail which is slightly longer than the inner rail. In between, a pair of inner rail projecting / withdrawing guiding devices each having an inclined guiding portion and a guided portion are installed at a plurality of positions in the outer rail groove, and the pressure receiving portion of the inner rail is the inner rail groove. A railroad device for a folding door, wherein the railing device for the folding door can be brought into contact with a pressing portion of the folding door guided inside. 2. The invention according to claim 1, wherein the pair of inner rail protrusion / withdrawal guide devices comprises a tilt guide portion which is a tilt block fixed to the outer rail and a guided portion which is a door roller fixed to the inner rail. Rail device for the folding door described. 3. A pair of inner rail thrusting / retracting guiding devices, each of which is formed or fixed to one of the inner and outer rails, has a tilt guiding portion as a tilt groove and a guided portion as a pin fitted in the tilt groove. 6. The railroad device for folding doors according to claim 1. 4. The invention according to claim 1, wherein the pair of inner rail thrusting / retracting guiding devices comprises a tilting guide portion or a guided portion which is a tilted block or a tilted vane formed or fixed on one of the inner and outer rails, respectively. The railroad device for a folding door according to the item. 5. The pressing portion of the folding door is an upper suspension support end frame that runs in the groove of the inner rail, or an end frame part fixed to the top suspension support end frame. Rail device for folding doors.