JPH0335836Y2 - - Google Patents

Description

[Detailed description of the invention] This invention allows a door that automatically opens and closes by sliding to swing open automatically when an emergency signal is input from a smoke detector or when a swing open signal is input from a manual button. This invention relates to a door opening device.

The applicant has already proposed a door that can be opened and closed both by sliding and by swinging, as shown in FIGS. 1 and 2. In this structure, hanging frames 4, 4 are suspended from an upper rail 2 in a blind 1 via pulleys 3, 3, and opening/closing doors 5, 5 are further suspended from the hanging frames 4, 4. Then, by the forward and reverse rotation of the slide drive device 6,
The left and right opening/closing doors 5, 5 are fitted through belts 7, 7 and pulleys 8, 8, and are opened and closed by sliding along the doors 9, 9.

Here, when a larger opening than the opening/closing doors 5, 5 is required, such as when carrying in large luggage or when an abnormal situation such as a fire occurs, the opening/closing door 5, as shown in FIG. 5, 5 manually to the outside, the opening/closing doors 5, 5 disengage the engagement parts 14, 14 with the hanging frames 4, 4, swing around the upper swing fulcrum parts 10, 10, and this opening/closing The door 9 is stuck by the swing of the doors 5, 5,
9 is also pushed out and the upper and lower turning fulcrum parts 11, 11, 1
Swing around 2 and 12. Opening/closing door 5,5
Even when it remains open, it slides to the positions of the pillars 13, 13 on both sides, resulting in an opening twice as large as normal.

The present invention has been proposed for a door that automatically opens and closes by sliding as described above, and when a swing opening signal is input, such as a signal automatically sent from a smoke detector or a signal manually input from an emergency button, the slide will open and close automatically. The opening/closing door is first brought into a fully open state, and then the swing drive device is driven to swing the opening/closing door open. Both the opening/closing door and the closing door may be opened by swinging with a swing drive device, or only the opening/closing door may be opened by swinging with a swinging drive device, and the closing door may be opened by swinging with a swinging drive device. It may be pushed out and opened.

Hereinafter, embodiments of the present invention will be described based on the drawings from FIG. 3 onwards.

In FIGS. 3 and 4, 13 is a pillar, and a swing drive device 16 is buried in the floor 15 on the side of this pillar 13. This swing drive device 16 is installed at only one location in the case of a single door, and is installed at two locations on the left and right in the case of a double door. The case of a single door will be explained below. Case 17 of the swing drive device 16
is buried so that its upper surface is substantially flush with the floor surface 15, and inside this case 17 are a motor 18, a worm gear 19 for speed change, a worm wheel 20,
Gear 21, idler 22, 23, gear 24, 2
Swing shafts 26 and 27 to which 5 is fixed are provided. More specifically, from the motor 18 to the belt 2
8 to a worm gear 19, which meshes with a worm wheel 20. As shown in FIG. 7, this worm wheel 20 is fixed to a shaft 29 and has a bearing 30,
31 so as to be rotatable. A conical recess 32 is formed on the lower surface of the worm wheel 20, and a conical clutch 33 integral with the gear 21 is fitted into the conical recess 32. Further, a threaded rod 35 inserted into the through hole 34 of the shaft 29
is biased upwardly by a spring 36, and a pin 37 provided on the threaded rod 35 engages the clutch 33, keeping said clutch 33 in close contact with the conical recess 32 at all times and slipping in the event of overload. A nut 38 for adjusting the elasticity of the spring 36 is screwed onto the upper end of the threaded rod 35. The gear 21 further includes an idler 22,
23, and this idler 23 meshes with gears 24 and 25 of a swing shaft 26 for an opening/closing door and a swing shaft 27 for a closing door. The upper ends of these swing shafts 26, 27 are cut on both sides to form flat parts 39, 40, respectively, and one of the swing shafts 27 (or 26) has a groove for controlling the swing angle and swing speed. A disk 41 is fixed. This disc 41 is provided with a slow speed conversion control hole 44 at a central angle of 70 to 80 degrees from the hole 43 on the base line 42, and a swing angle control hole 45 at a position of 90 degrees. Furthermore, a rotation angle detection switch 48 consisting of a photodiode 46 and a phototransistor 47 is provided above and below the disk 41.

An arm 49 is fixed to the lower end of the closing door 9, and a long hole 50 formed in the arm 49 has a flat portion 4 of the swing shaft 27 for closing the closing door.
0 is always fitted and connected. Further, the opening/closing door 5 is provided with a steady rest 52 that is loosely fitted into the groove-shaped lower rail 51 and slightly protrudes from the lower end. A fitting groove 53 that engages with and disengages from 39 is provided, and the protruding portion without a groove constitutes a stopper 54.

Next, to explain the control circuit of FIG. 8, 55 is a sensing switch for detecting a person or object approaching the opening/closing door 5 when used as a normal automatic door, such as a radar switch, pine switch, touch switch, etc. It is made up of. 56 is a swing open signal output circuit that outputs a swing open signal by operating a manual button in addition to emergency situations such as a smoke detector in case of a fire or a vibration sensor in an earthquake. The sensing switch 55 and the swing open signal output circuit 56 are coupled via a control circuit 57 to the motor 6 as a slide drive device and the motor 18 in the swing drive device 16. An open end detection switch 58 by sliding and a rotation angle detection switch 48 by swing are installed on the opening/closing door 5 and the closing door 9 which are controlled to open and close by these motors 6 and 18. is coupled to the control circuit 57.

The operation of the above configuration will be explained. A switch 55 that can be detected by a person or an object during normal opening/closing.
When the control circuit 5 approaches and outputs an open signal, the control circuit 5
The sliding motor 6 rotates forward in response to a signal from the sliding door 7, and when the opening/closing door 5 begins to open and approaches the pillar 13, the motor 6 becomes slow and the opening/closing door 5 moves to the position of the pillar 13. At this time, the open end detection switch 58
operates to stop the movement of the opening/closing door 5, and the fitting groove 53 of the steady rest 52 and the swing shaft 26
The flat portion 39 is fitted, and the flat portion 39 is locked to the stopper 54. When a certain period of time has passed after a person or an object has passed, a reverse rotation signal is output from the control circuit 57, the slide motor 6 is reversed, and the opening/closing door 5 is closed.

Next, when a swing opening signal is output from the swing opening signal output circuit 56 in an emergency or as required, the slide motor 6 rotates forward in response to a signal from the control circuit 57, and the opening/closing door 5 is opened in the same manner as described above. When fully opened, the flat portion 39 fits into the fitting groove 53. In this mated state, the swing motor 1
8 rotates. The rotation of this motor 18 is
8. Transmitted to the worm wheel 20 via the worm gear 19, and furthermore, a gear 21 integrated with the clutch 33, idlers 22, 23, gears 24, 25
The swing shafts 26 and 27 are rotated through the steps. The swing shafts 26 and 27 each have an opening/closing door 5.
Since the closing door 9 and the closing door 9 are fitted, the opening/closing door 5 and the closing door 9 start opening by swinging. When the swing is approximately 70 to 80 degrees, the rotation angle detection switch 48 detects the slow speed conversion control hole 44, and the signal is sent to the control circuit 57 to set the swing motor 18 at slow speed. When it swings further and reaches the 90 degree position, the swing angle control hole 45 is detected, the swing motor 18 stops, and the opening/closing door 5 and the closing door 9 are fully opened at 90 degrees.

The opening/closing door 5 and the closing door 9, which have been opened by swinging, are manually returned to their original sliding state.

In the embodiment, the swing drive device 16 is
Although it is buried in the floor 15, it may also be installed in the open space 1, as shown in FIG.

In the embodiment described above, the opening/closing door 5 and the closing door 9, which are fully opened by swinging, are manually returned to their original positions, but they may be returned to their original positions by reverse rotation of the swing motor 18.

In the embodiment described above, both the opening/closing door 5 and the closing door 9 are opened by swinging by the force of the swing motor 18, but only the opening/closing door 5 is opened by swinging, and the closing door 9 is opened by swinging. It may be one that is pushed out and opened at 5.

In the embodiment described above, the power transmission of the motor 18 of the swing drive device 16 is carried out by the belt 28 and the gears 19, 20.
. . . However, it is also possible to use a combination of chains, sprockets, etc.
Further, the swing drive device 16 may be powered by hydraulic pressure, pneumatic pressure, or the like.

In the above embodiment, the case of a single-swinging door has been described, but a double-swinging door can also be used as is by providing swing drive devices on the left and right sides.

As mentioned above, in the case of an emergency such as a fire or an earthquake, or when a swing open signal is output as necessary, the automatic opening/closing door first fully opens by sliding, and then automatically opens by swinging. I set it to full throttle. Therefore, panic situations can be minimized, especially in places where an unspecified number of people gather, such as theaters, schools, hotels, department stores, etc.

[Brief explanation of the drawing]

Fig. 1 is a front view of the automatic opening/closing door, Fig. 2 is a plan view showing the opening/closing state by swinging, and Figs. 3 to 8 are the first diagram of the door emergency opening device according to the present invention.
Fig. 3 is a plan view of the swing drive device, Fig. 4 is a vertical sectional view of the same, Fig. 5 is a plan view of the rotation angle detection disk, and Fig. 6 is a diagram showing the relationship between the door and the swing axis. 7 is a sectional view showing the transmission state of the swing drive device, FIG. 8 is a block diagram of the opening/closing control circuit, and FIG. 9 is a front view of another embodiment of the present invention. be. 1...No eyes, 2...Upper rail, 4...Hanging frame,
5... Opening/closing door, 6... Slide motor, 9...
...Fitting door, 10...Upper swing fulcrum, 13...
...Column, 16... Swing drive device, 18... Swing motor, 26, 27... Swing axis, 5
1...Lower rail.

Claims (1)

[Claims for Utility Model Registration] (1) Suspended from an inner suspension frame by an upper pivoting fulcrum at one end and an engaging portion at the other end to enable opening and closing by sliding, and the upper pivoting fulcrum In an opening/closing door that can be opened and closed by swinging using the opening/closing door as a fulcrum, the swing drive device operates in response to a swing opening signal to open the opening/closing door by swinging the opening/closing door facing the swing fulcrum position when the opening/closing door is fully opened by sliding. A door opening device characterized by being provided with. (2) A utility model registration request for a swing drive device comprising a swing shaft that engages with and disengages from a steady rest provided at the lower swing fulcrum position of an opening/closing door, and a swing motor that rotates this swing shaft. Door opening device described in item (1). (3) The door opening device according to claim (1) of the registered utility model, wherein the swing drive device is configured to swing open the opening/closing door and the closing door at the same time. (4) The door opening device according to claim 1, wherein the swing drive device opens only the opening/closing door by swinging, and pushes out and opens the jammed door by the opening operation of the opening/closing door.