JP2001061981A - Semi-automatic folding door device with smoke sensor function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically close a folding door which is engaged to a stopper and is opened after detecting smoke at starting a fire by releasing an engaging roller after the stopper of a releasing device for engaging to the engaging roller of a pulley receives a signal from a smoke sensor. SOLUTION: An engaging roller 17 engaged to an engaging section 14 prevents a pulley from moving not to close a folding door. A releasing device 11 releases the engaging roller 17 when a stopper 10 is lifted up, and the folding door is automatically closed with a spring force of a spring hinge. An electric signal from the smoke sensor connected with the releasing device 11 drives a piston 20 of a solenoid 18 in reverse, and a pawl 19 is tilted to release a stopper support arm 21. When a tip 24 is taken out of a notch of the pawl 19, the arm is rotated with the spring force, the tip 24 is lifted up, the other end roller 25 is lifted down, a block 13 is rotated clockwise at a center of a shaft 12, the stopper 10 is tilted, a tip engaging section 14 is lifted up to release the engaging roller 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a semi-automatic folding door apparatus in which a folding door which is pushed open to a fully open state detects smoke and can be automatically closed.

[0002]

2. Description of the Related Art FIG. 1 is an external view of a folding door apparatus, in which panels 1 and 2 are panels, and both panels 1 and 2 are connected so as to be foldable. The panel 1 can be rotated by being supported by a hinge 3 provided on the suspension side, and the panel 2 is suspended by a suspension vehicle traveling on the upper rail 4. The solid line in FIG. 1 (a) indicates a case where the folding door is extended and the frontage is closed, and the dotted line indicates a state where the folding door is slightly folded. In this case, the panel 1 rotates around the hinge 3, the one panel 2 rotates around the suspension bolt of the suspension vehicle 5, and the suspension vehicle 5 moves along the upper rail 4.

[0003] A lever handle 6 is attached to the panel 2, the folding door extends to close the frontage, and a latch bolt 7 provided at the front end of the panel is fitted and locked in a groove provided in the frontage frame. By operating the lock 8, the rod 9 rises to lock the folding door and cannot be opened by operating the lever handle 6. Here, regardless of the form of the lever handle 6 and the presence or absence of the rod bar 9, it is used as necessary for each folding door according to the application.

By the way, if the panel 1 is not merely pivotally supported via the hinge 3 but is mounted via a hinge with a spring or a hinge with a spring, the opened folding door can be closed by itself. That is, it becomes a semi-automatic folding door.
In the case of this semi-automatic folding door, it is necessary to provide a stopper so as not to close immediately, and to temporarily hold the open state. The folding door, which is locked to the stopper and is in an open state, remains open unless it is removed from the stopper. Therefore, if a fire occurs, smoke and fire cannot be shut off.

[0005]

As described above, the conventional semi-automatic folding door has the above-mentioned problems. The problem to be solved by the present invention is this problem. A folding door that is opened by being locked by a stopper can detect smoke and close automatically when a fire occurs. A semi-automatic folding door device is provided.

[0006]

The folding door is constructed by connecting two panels so that the two panels can be bent. The basic configuration is the same as that of the folding door apparatus shown in FIG. One panel is attached via a hinge on the hanging side, and the other panel is hung on a hanging vehicle that moves on the upper rail.
Thus, if one panel rotates about the hinge, the other panel rotates about the suspension wheel,
You can move along the upper rail.

The hinge is a hinge with a spring provided with a spring, and the folding door pushed open by hand can be closed independently by twisting the spring of the hinge. That is,
It consists of a semi-automatic folding door device. Of course, the present invention is not limited to the hinge with spring, but may be a hinge with spring. Further, a stopper is attached to the folding door device of the present invention, and the folding door is locked to the stopper to keep the door open.

The fully opened folding door cannot be closed without being removed from the stopper, but the stopper is released upon sensing smoke so that the door can be automatically closed in the event of a fire. Equipment. The smoke sensor is conventionally known, and receives an electric signal from the smoke sensor to operate a solenoid, and the stopper is released by the solenoid. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The overall external view of a folding door apparatus is almost the same as that shown in FIG. 1 above, and panels 1 and 2 are connected so as to be foldable, and panel 1 is connected to a hanging side via a spring hinge. The panel 2 is suspended from a suspension vehicle 5 running on the upper rail 4. The panel 1 can rotate around a hinge, and the panel 2 rotates together with the hanging wheel 5 to rotate and open and close the frontage.

FIG. 2 shows a case where the panel 2 is hung on a hanging wheel 5 mounted on the upper rail 4. The hanging wheel 5 can move by moving rollers on the running piece of the upper rail 4. Panel 2 also moves at the same time. FIG. 3 is a plan view seen from above when the folding door is folded and the frontage is opened. The panel 2 is folded substantially perpendicular to the upper rail 4, preferably at a slight angle, while one panel 1 is mounted on a spring-loaded hinge 26 and is connected to the panel 1. Then, the panel 1 is not parallel to the panel 2, and the intersection angle between the panels 1 and 2 is completely opened in a state of forming a substantially V shape,
It comes into contact with the door stop rubber 27 attached to the vertical rail.

A spring force rotating counterclockwise acts on the hinge 26, and the spring force also rotates the panel 1 in the counterclockwise direction to press the connecting portion of the panel 2, and this pressing force is The hanging wheel 5 is moved, and both panels 1 and 2 are moved.
Extends. That is, the folding door that is pushed open by hand can be closed independently by the spring force of the spring hinge 26.

As described above, it is convenient to close the pushed-out folding door by itself, but it is sometimes inconvenient.
That is, it may be necessary to temporarily keep the door open, and the semi-automatic folding door of the present invention is provided with a stopper. FIG. 4 shows the stopper 10 and a release device 11 for the stopper 10. The stopper 10 is formed of a leaf spring extending substantially horizontally from the block 13 and has a substantially V-shaped locking portion 14 at the tip.

The block 13 is rotatably supported by the shaft 12. When the block 13 rotates, the stopper 10 of the stopper 10 moves up and down. Suspension car
The body 15 of 5 extends long, and the roller 16 is also attached to the front-end | tip, and the upper rail 4 can be rolled. And another locking roller 17
Is attached, and can be locked to the distal end locking portion 14 of the stopper 10. That is, the locking roller 17 locked to the locking portion 14 prevents the movement of the suspension wheel 5, and as a result,
Make sure the folding door does not close.

By the way, the release device 11 detects smoke when a fire occurs and the folding door is closed, and the stopper 10 is raised and the locking roller 17 is closed.
Can be canceled. If the locking roller 17 is released, the folding door can be closed independently by the spring force of the spring hinge 26. A smoke sensor is connected to the release device 11, and an electric signal from the smoke sensor installed at an appropriate position enters the solenoid 18, and the piston 20 of the solenoid 18 is retracted.

The piston 20 is connected to the tip of a claw 19 which swings about an axis. If the piston 20 retreats, the claw 19 swings and the stopper holding arm 2
1 can be canceled. Stopper holding arm 21
Is pivotable about a shaft 22, but a torque rotating in a counterclockwise direction is urged by an attached spring 23, and a tip 24 is formed on the claw 19. If it comes off from the notch, it rotates by the spring force and the tip 24 rises.

The tip 24 of the stopper holding arm 21
Rises, the other end roller 25 descends, the roller 25 hits the block 13 and the block 13
Will rotate clockwise around. As a result, the stopper 10 attached to the block 13 swings, and the tip locking portion 14 can move up. As described above, when the smoke sensor detects smoke, the locking portion 14 of the stopper 10 is lifted to release the locking roller 17, the hanging wheel 5 can move, and the folding door is closed. Is done.

Incidentally, the main body 15 of the hanging wheel 5 is long, which is one of the features of the present invention. A load corresponding to the weight of the panel always acts on the hanging wheel 5 on which the panel 2 is suspended, and a locking roller 17 is provided at a position far away from a portion where the load directly acts. When the locking roller 17 is locked to the locking portion 14 of the stopper 10,
It is necessary to push up the locking portion 14 by deforming the stopper 10 with a spring.
7 works as a reaction force. However, the extension of the main body 15 does not extend to the hanging portion of the panel 2 and the durability of the hanging vehicle 5 is improved. Also, since a total of six rollers 16, 16,... Are attached to the main body 15, small rollers 16 can be used.

[0018]

As described above, since the folding door apparatus of the present invention is of a semi-automatic type, the folding door which is pushed open by hand can be closed by the hinge spring to which the panel is attached alone. Also, when fully opened, it can be kept open without being locked by the stopper and closed. However, the folding door device is provided with a smoke detection sensor, and when a signal is received from the smoke detection sensor, the stopper of the release device releases the hanging vehicle so that it automatically closes when a fire occurs. Has become.

In addition, a locking roller for locking the stopper of the release device is provided on the suspension vehicle at a position where the main body of the suspension vehicle is greatly extended. Therefore, the impact force when the locking roller is locked to the locking portion of the stopper does not directly act on the hanging portion of the panel, and as a result, the durability of the hanging vehicle is improved. In addition, the roller diameter is reduced by extending the body of the suspension vehicle and attaching the roller to the tip, so that the dimensions of the upper rail on which the suspension vehicle travels and the dimensions of the upper rail to which the upper rail is mounted Can also be reduced.

[Brief description of the drawings]

FIG. 1 shows a general form of a folding door.

FIG. 2 is a longitudinal section of a part where a panel is suspended by a suspension vehicle.

FIG. 3 shows a state where a folding door is folded.

FIG. 4 is a release device for a hanging vehicle locked to a stopper.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Panel 2 Panel 3 Hinge 4 Upper rail 5 Hanging wheel 6 Lever handle 7 Latch bolt 8 Lock 9 Lot rod 10 Stopper 11 Release device 12 Axis 13 Block 14 Locking part 15 Body 16 Roller 17 Locking roller 18 Solenoid 19 Claw 20 Piston 21 Stopper holding arm 22 Axis 23 Spring 24 Tip 25 Roller 26 Hinge 27 Door rubber

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) E06B 3/48 E06B 3/48 G08B 17/00 G08B 17/00 E

Claims (4)

[Claims] 1. One panel is attached to a hanging side via a hinge with a spring, and the other panel is hung by a hanging vehicle moving on an upper rail, and both panels are connected to each other so as to be foldable. In a semi-automatic folding door device in which a folding door that is pushed and folded by hand can be extended by the spring force of the hinge or the like to close the frontage, the suspension wheel is provided with a locking roller and locked with the locking roller. A semi-automatic folding door device with a smoke detection function, characterized in that a release device having a stopper is provided, and the stopper of the release device functions to release a locking roller in response to a signal from a smoke detection sensor. 2. A door stop rubber contacting a panel surface is attached so that when the folding door is folded, the panel stops so that the intersection angle of both panels substantially forms a V-shape.
Semi-automatic folding door device with smoke detection function as described. 3. The smoke detecting function according to claim 1, wherein a roller for rolling the upper rail and a locking roller are attached to a tip end of the main body of the hanging vehicle that is greatly extended from the panel hanging portion. Semi-automatic folding door device. 4. The release device has a solenoid having a piston which moves forward and backward in response to a signal from a smoke detection sensor,
A nail that swings around an axis is connected to the tip of the piston of the solenoid, and a spring force is applied to the stopper holding arm that is supported by a spring so that the spring rotates. The stopper is locked in the notch, and the other end roller of the stopper holding arm can rotate the block by hitting the block, and the block is provided with a stopper formed at the tip with a locking portion for locking to the locking roller. 4. A semi-automatic folding door device with a smoke detection function according to claim 1, 2 or 3.