JPH0643774B2 - 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) According to the present invention, in accordance with the above object, the upper and lower or lower rail devices for folding doors are composed of inner and outer rails, and the inner rails are movable in the longitudinal direction and can be projected and retracted. The insertion and insertion are performed by using the pressing force when the folding door is opened and closed, and the movement and protrusion / depression of the inner rail are performed by a plurality of rotating arms that connect the two rails. That is, the present invention provides a long groove-shaped inner rail provided with pressure receiving portions at both ends in the longitudinal direction, and a groove of an outer rail made slightly longer than the inner rail. The inner rails can be slidably inserted and fixed in the longitudinal direction between the inner and outer rails so that the inner rails can be moved and retracted in the fixed outer rails in the longitudinal direction, and the inner rails can be pressed. The receiving part can be freely contacted with the pressing part of the folding door guided in the inner rail groove. The gist of the present invention is a railroad device for folding 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.
It is formed by having an outer rail 4 and a rotating arm 5.

The folding door 2 of this example comprises 10 door bodies 10 arranged side by side in a frame body formed by arranging the upper and lower frames 6 and 7 and the left and right vertical frames 8 and 9 in four frames. The door body 10 includes a frame 11 on the top, bottom, left and right,
12, 13, 14 and the middle belt 15 are framed, and a glass panel 16 is fitted and held therein, and a connecting frame 17 is arranged between each door body 10, and adjacent door bodies 10 on the left and right sides thereof are arranged. , 10 are rotatably hingedly connected (connecting portion 18). Further, every other one of the connecting frames 17 is provided with an upper hanging door roller 19 at the upper end so that the upper frame 6 can be supported by the guide rails 20 of the upper frame 6 so that the upper frame is supported by the guide rails 21 at the lower ends thereof. In order to guide the fitting, the inner rail 3 described below is provided. A steady rest 22 is provided at the upper and lower ends of the other connecting frame. In this way, while connecting 10 hinges via the connecting frame 17,
The door body 10 ... Suspended on the upper frame so as to be freely movable is folded in a bellows shape by laterally pulling it sideways and can be opened and closed.

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 in the longitudinal direction of the inner rail groove 26 and screwed (3 in the figure).
0) and is integrally provided on the inner rail 3.

Next, the outer rail 4 is a groove-shaped mold 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 sides 32, 33 integrally. The outer rail groove 34 having a substantially inverted U-shaped upward opening is formed so that the upper ends of the front and rear side plates 32 and 33 are slightly extended to the inside of the groove openings to form the front and rear horizontal fin portions 35 and 36. It is made by integral molding. In addition, 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 of the turning amount of the turning arm 5 described later or more. The horizontal fin portions 35, 36 of the outer rail 4 are provided at the tips thereof with a series of bulging portions 38 in the longitudinal direction toward the inner side of the groove front.
Even when the inner rail 3 which has been formed and has been fitted is in contact with the inner rail 3, the friction between the two rails is reduced by making this into a line contact.

A plurality of rotating arms 5 ... Are attached and fixed in a spaced-apart manner in the longitudinal direction between the inner and outer rails 3 and 4 which are engaged with each other.

That is, the rotary arm 5 of the present embodiment is made of a relatively thick stainless steel plate, and has inner surfaces of the front and rear side plates 32 and 33 of the outer rail 4 and outer surfaces of the front and rear side plates 23 and 24 of the inner rail 3, respectively. It is mounted and fixed by being pivotally mounted (shaft mounting portion 39).
Further, the arrangement is such that two pieces are arranged in the outer rail groove 34 in the vicinity of both ends in the left-right longitudinal direction, and the inner rails 3 are provided on each of the front and rear sides, that is, a total of four front and rear and left and right sides. It is attached to the place.

Here, the rotation of the rotation arm 5 of the present embodiment is such that the shaft attachment portion 39 to the outer rail 4 is a fixed point, and the rotation arm 5 can be rotated upward from an angle obtained by horizontally adding an elevation angle to some degree, and the apex is slightly further increased. It is said to extend beyond the angle. Then, at this time, the inner rail 3 is guided by the pivot arm 5 and is allowed to project from the outer rail groove 34 while being kept horizontal by the rotation of the shaft attachment portion 39. Further, the rotation arm can stop further rotation at an angle slightly beyond the apex by contact with a stopper (not shown) or the inner rail 3 to the vertical frame 9. Of course, the inner rail 3 can be retracted into the outer rail groove 34 by the reverse rotation guide of the rotating arm 5, and the revolving arm still has a certain elevation angle with respect to the horizontal as described above when the retraction is completed. I have left. Reference numeral 40 in the figure denotes a washer made of synthetic resin, which is interposed as necessary to prevent electrolytic corrosion and improve slidability.

By the way, the connected door bodies 10 ... Are movable in the opening and closing direction between the left and right vertical frames 8 and 9 in the extended state, by the horizontal component of the rotation amount of the rotation arm 5 or more. In the embodiment, the left end suspension element frame 42 holds a movable amount (clearance) for that 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 above movement is possible by pulling laterally against this urging force or conversely entrusting it to the urging 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 part 41 of the folding door is hingedly connected to the left and right doors of the door body 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 roller 19 at the upper ends thereof so that they can be supported by the guide rails 20 of the upper frame 6 so that they can travel freely. It is an upper suspension bearing end frame that travels in the inner rail groove 26 via a guide roller 21 provided at its 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 inner rail 3 is projected upward from the outer rail groove 34 by the upward rotation of the pivot arm 5. . Then, in the inner rail groove 26, every other connecting frame 17
With the guide roller 21 provided at the lower end of the door 10
A steady rest 22 provided on the lower part of the lower frame 12 and the lower end of the other connecting frame 17 is fitted (see FIG. 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 inner rail 3 is retracted and housed in the outer rail groove 34 by the downward rotation of the rotating arm. The guide rollers 21 provided at the lower ends of the alternate connecting frames 17 maintain the fitted state in the grooves, but the lower frame 12 of the door body 10
The steady rests 22 provided on the lower part of the above and other lower ends of the connecting frames 17 are simultaneously released from 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. 7 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 the present example, the upper frame 6 is also provided with substantially the same rail device so as to operate in the upside-down direction of the rail device of the lower frame (see FIGS. 3 and 4). Inner rails in the upper frame (however, the inner rails 44 do not fit and hold the end portion of the door body 10 in the groove, but attach and hold it to the upper end portion of the door body from one of the front and rear sides), 4
Reference numeral 5 is an L-shaped angle serving as a pressure receiving portion provided at both ends in the longitudinal direction of the inner rail 44, 46 is an outer rail, 47 is an outer rail groove, 48
Is a shaft mounting portion of the rotary arm 5, 49 is a synthetic resin washer which is interposed as needed, and the rotary arm is provided in the outer rail groove 47 in the vicinity of 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 closed door bodies 10 ... Is constantly extended in the closing direction, and the pressing portion 41 of the right end door contact frame 43 keeps pressing the pressing receiving portion 29 of the inner rail 3. Becomes 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 the door body 10 is opened, 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 once opened, the urging range of the urging device 50 is limited, and the left end suspension 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.

The rotation arm is arranged at a total of four places in the outer rail groove as shown in the figure, and for example, only the central portion in the front-rear direction in the groove is provided in the vicinity of both left and right longitudinal end portions. It is also possible to arrange only in two places. Of course, it is not limited to the both ends in the longitudinal direction, and a plurality of them may be arranged at an intermediate position in a spaced manner.

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.

In order to avoid dust and mud clogging and to maintain a smooth operation of the rotating arm for a long period of time, it is desirable to use a bearing-bearing bearing for mounting and fixing the rotating arm or to strengthen the seal.

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 railroad 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, when the rail device is formed only on one of the upper and lower frames, the front or rear wall part of the frame holding the door body end part is moved up and down as means for separating the door body from the other frame. Those that can be freely opened and closed can be appropriately selected and used.

Although the embodiments are configured as described above, the present invention is, unless it goes against the gist, a specific structure and shape of the pressure receiving portion, the inner rail, the outer rail, the rotating arm, the folding door, the pressing portion, and the like, Needless to say, the material, the number of members, the arrangement, the relationship thereof, and the like can be variously changed and are not limited to the above-described embodiment.

(Effects of the Invention) In the opening / closing device of the present invention, the long groove-shaped inner rail having the pressure receiving portions at both ends in the longitudinal direction is fitted into the groove of the outer rail slightly longer than the inner rail. And at the same time, by attaching and fixing a plurality of rotating arms in the longitudinal direction between the inner and outer rails in a spaced manner,
The inner rail is movable in the longitudinal direction in the fixed outer rail so as to be movable in the longitudinal direction, and the pressure receiving portion of the inner rail can be brought into contact with the pushing portion of the folding door guided in the inner rail groove. In the folding door guided in the groove, the end of the door body is stably held in the inner rail groove in a closed state when the inner rail is projected and retracted by the rotating arm in the closed state. When opening, the holding state can be released entirely, so there is no need to move all the doors to the door pocket side and fold them sequentially.For example, you can fold from the door stop side, so only the required number of sheets It can be opened and closed to open and close, and 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.

In the railroad device of the present invention, 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, so that the inner rail can be opened and closed by opening and closing the folding door. The operation is performed by utilizing the pressing force at the time, and the operation can be a series of operations such as the lateral pulling operation of the folding door, and the usability can be improved.

[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 ... Folding door rail device, 26 ... Inner rail groove 2 ... Folding door, 29 ... Press receiving part 3 ... Inner rail, 34 ... Outer rail groove 4 ... Outer rail, 41 ... … Pressing part 5 …… Rotating arm

Claims (1)

[Claims] 1. A long groove-shaped inner rail having pressure receiving portions at both ends in the longitudinal direction is fitted into a groove of an outer rail which is slightly longer than the inner rail, and the space between the inner and outer rails. By mounting and fixing a plurality of rotating arms in the longitudinal direction in a spaced-apart manner, the inner rail can be moved in the longitudinal direction in the fixed outer rail so as to project and retract, and the pressure receiving portion of the inner rail is guided in the inner rail groove. A railroad device for a folding door, wherein the railing device for the folding door can be freely contacted with the pressing portion of the folding door.