JPH079123B2 - Folding door opening and closing device - Google Patents

Description

TECHNICAL FIELD The present invention relates to folding doors used for gates, shutters, partitions, etc., and more particularly to a device for opening and closing the same.

[Prior Art] As an opening and closing device for this type of folding door, for example
No. is known.

According to this, the pair of pulleys arranged in the upper frame for hanging and traveling on the folding door main body, the wire rope between the pulleys, and the wire rope are wound and positioned on the door tip side of the folding door main body. A traveling pulley fixed to the upper end of the center of the door body so as not to rotate, and an upper-hanging rotary sheave that is rotatably supported by the traveling pulley are provided. It is supposed that the door body of the folding door body is forcibly rotated in the folding direction through the pulley and the folding door body is folded and opened by the movement of the upper hanging rotary door wheel.

[Problems to be Solved by the Invention]

However, if the wire rope is used to open and close the folding door, it has the drawback that it is difficult to avoid stretching due to the opening and closing load.Therefore, if the wire rope stretches, the running pulley will spin, which will result in folding. This may result in poor opening or closing of the tatami door body or inability to open and close.

Therefore, in this case, it is theoretically possible to open and close the folding door, but it is extremely difficult to put it into practical use as a folding door opening / closing device that actually requires durability.

The present invention has been made in view of such circumstances, and a problem to be solved by the present invention is to provide a folding door opening / closing device that has durability and reliability of operation and is suitable for practical use.

[Means for Solving the Problems]

Therefore, the present invention uses a screw rod and a screw block, and applies a force in the compression direction and the extension direction to the folding door main body by the straightness of the screw block, so that the folding door can be folded and opened and extended and closed. , The screw block is arranged on the upper end of the door end side end of the door body located on the door end side of the folding door body and is rotatable with respect to the door body. In the present invention, the above-mentioned hanging door straight-moving door is pivotally fixed, that is, the present invention is arranged in series in the upper frame for hanging-up traveling of the folding door body according to the folding opening / closing width of the folding door body. A rotatable screw rod provided, and screwed onto the screw rod so as to be able to move straight in the upper frame so as to be freely rotatable at the upper end of the door tip side end of the door body located on the door tip side of the folding door body. With a fixed screw block, A folding door opening / closing device, comprising: a folding door main body, which is pivotally supported on a screw block and is mounted on and engaged with a straight-moving rail of the upper frame, and an upward-suspending straight-moving door roller for hanging on the front end of the folding door. Further, this is a means for solving the above problems as the gist of the invention.

〔Example〕

The present invention will be described in more detail with reference to the drawings showing examples below. A is a folding door that is, for example, a gate with an aluminum frame, B is the hanging frame, C is the folding door body, and 1 is the hanging frame B. Of the door stop side pillar, 2 is the same as the hanging side pillar, and 3 is the same upper frame,
Reference numeral 6 denotes a door body that constitutes a folding door body C, and is formed by folding an even number of sheets in the width direction by hinges 14 so as to be foldable and expandable.

The folding door A is placed on the straight-moving rails 4 of the upper frame 3 so that the opening of the hanging frame B can be opened and closed. The folding door is a horizontal pull-up folding door that is hung on the upper frame 3 via 16.
The folding door body C can be opened and closed by, for example, a vehicle for private use,
An automatic opening / closing device D is provided so that the motor M can be automatically opened / closed by remote control in the room of the building.

The opening / closing device D uses a screw rod 20 and a screw block 30.
Corresponds to the folding opening / closing width of the folding door body C and is arranged in a series in the upper frame 3 for hanging traveling of the folding door body C, and the screw block 30 is It is adapted to be screwed onto a screw rod 20 so as to be able to move straight in the upper frame 3 and rotatably fixed to an upper end of a door body side end portion of a door body 6 located on the door tip side of the folding door body C.

That is, in this example, the screw rod 20 is the upper frame 3 formed by twist molding a stainless steel thick plate to form a male screw.
Of a long length, and is rotatably fixed by bearings 22 at both ends, and the screw block 30 is a block body 31 made of T-shaped nylon molding and this block body 31. Embedded in the upper through hole of
And a screw member 32 made of a sintered alloy, which is formed by engraving and forming a male screw screw to be screwed on the male screw.

Further, the screw block 30 is provided with a support bolt 33 which is provided so as to project downward from the screw block 30, and is fixed to the folding door main body C via the support bolt 33 on the door tip side thereof. The screw block 30 is fixed so that the support bolt 33 is rotatably supported so that the screw block 30 can be fixed rotatably by itself. The upper end of the door end frame 9 of the door end side door body 6 located on the side of the hit side column 1 is formed.

The screw block 30 is pivotally fixed to the screw block 30 such that it also functions as an upper suspension member at the door end of the folding door body C, and the screw block 30 is placed and engaged with the straight-moving rail 4 of the upper frame 3 so as to be engaged. It is provided with an overhead hanging linear door pulley 15 for hanging on the top.

That is, in the present example, among the plurality of the upper frames 3 in the longitudinal direction, the uppermost hanging position of the folding door C is set to the uppermost position of the folding door C, and the portion of the door frame 9 is hung directly on the door.
Are directly fixed to the front and rear of the screw block 30 by a pair of support shafts.

Therefore, for example, before installing the screw rod 20, from one end of the screw block, the screw block is
The screw block 30 is screwed onto this, the screw block 30 is rotatably fixed to the above-mentioned door end frame 9 of the folding door body C, and the vertically suspended door pulley 15 is placed on and engaged with the rectilinear rail 4,
If the folding door main body C is hung on the upper frame 3 to form the folding door C, the screw block 30 moves straight in the upper frame 3 in the longitudinal direction of the upper frame 3 as the screw rod 20 is rotated by the motor M. With this property, it is possible to move in a straight line, and due to this movement, the overhead hanging straight door 15 rolls on the straight rail 4.
At this time, the screw block 30 will apply a force in the width direction that directly pushes and pulls the folding door body C to the folding door body C through the door end frame 9.
Also, since the vertically suspended door roller 15 provided therewith is rotatable with respect to the door frame 9, the force in the width direction acts on the folding door body C in the compression direction and the extension direction in the extension direction. The hinges 14 between the door bodies 6 perform expansion / contraction in response to this, and the folding door body C is folded and opened, and the extension / closing is performed, and the automatic opening / closing by the motor M can be performed.

In the figure, 5 is a lower rail, 7 is an upper frame of the door body 6, 8 is a vertical frame,
10 is a lower frame, 11 is a vertical crosspiece, 12 is a middle belt, 13 is a handle, 17 is a guide pin that engages with the lower rail 5, 18 is a pivot for fixing the door 6, and 21 is a screw rod 20 rotations. Shaft for
23 is a set screw, 24 is a bearing, 25 is a collar, 26 is a triple nut, 27 is a flex shaft, 34 is a washer of a bearing bolt 33, and 35 is a nut.

Although the illustrated example is as described above, for example, the screw rod shall be made of aluminum extruded material with ribs formed by torsion molding, and the metal rod shall be cut, screw block. , As a metal or the like having a female screw,
Folding doors, folding door bodies, upper frames, screw rods, screw blocks, straight rails, upper rails, including manually operating the opening / closing device with or instead of the motor, such as handle operation The concrete shape, structure, material, size, number, relationship between these, and addition to these can be variously modified without departing from the gist of the invention, and are particularly limited to those exemplified above. It is not enough.

〔The invention's effect〕

INDUSTRIAL APPLICABILITY As described above, the present invention relates to a rotatable screw rod arranged in series in the upper frame for hanging traveling of the folding door body in correspondence with the folding opening / closing width of the folding door body, and screwed to the screw rod. Then, a screw block rotatably fixed to the upper end of the door end side end portion of the door body located on the door end side of the folding door body so as to be able to move straight in the upper frame, and fixed to the screw block by a pivotal support. Since it is characterized in that it comprises a folding door main body door top for hanging on the straight rail of the above-mentioned upper frame and an upper-hanging straight-moving door roller for hanging, a screw block having straightness by rotation of a screw rod, Opening and closing by folding and opening the folding door body along the upper frame for hanging traveling by applying opening and closing force in the compression direction and extension direction to the folding door body suspended by the vertically suspended door carriage fixed to Of folding doors that can It is possible to provide a closing device.

In addition, since the folding door body is opened and closed by rotating the screw rod and moving the screw block screwed onto it in a straight line, the folding door body can be opened and closed without any trouble or trouble, and the operation reliability is high. In addition, it can be made highly stable and durable and suitable for practical use.

Furthermore, since the vertically suspended door pulley is pivotally fixed to the screw block, the load of the folding door body pulls down the screw block, and as a result of applying a downward load to the screw rod, it is possible to eliminate the deformation of the screw rod.
It is possible to further improve the durability.

[Brief description of drawings]

The drawings show examples, and FIG. 1 is a front view of a folding door,
FIG. 2 is a plan view showing a state in which the folding door body is folded and opened, FIG. 3 is a plan view showing a state in which the folding door body is extended and closed, and FIG. 4 is a longitudinal section showing an internal structure of the upper frame. Fig. 5 is a front view showing a connection state of a screw rod and a motor, Fig. 6 is a vertical sectional view taken along the line AA in Fig. 4, and Fig. 7 is a vertical sectional view taken along the line BB in Fig. 4. FIG. 8 is a vertical sectional view showing the structure of the lower part of the folding door. A: Folding door, 6 ... Door body B ... Hanging frame, 9 ... Door end frame C ... Folding door body, 15 ... Top hanging straight door door D ... Opening / closing device, 20 ... Screw rod 3 …… Upper frame, 30 …… Screw block

Claims (1)

[Claims] 1. A rotatable screw rod, which is arranged in series in an upper frame for suspension traveling of the folding door body, corresponding to a folding opening / closing width of the folding door body, and screwed to the screw rod. A screw block rotatably fixed to the upper end of the door end side end of the door body located on the door end side of the folding door body so as to be able to move straight in the upper frame, and the screw block is rotatably fixed to the screw block. An apparatus for opening and closing a folding door, comprising: a folding door main body that is placed on and engaged with a straight rail of a frame;