JPS6250582A - Apparatus for automatically opening and closing door - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention relates to an automatic door opening/closing device that moves back and forth in line with an electric motor, and is used to open/close doors installed at gates where vehicles and people enter and exit, and at entrances and exits of factories, warehouses, etc. used for.

Doors installed at the entrances and exits of gates, factories, warehouses, etc. are generally large and heavy and difficult to open and close manually, so they are often opened and closed automatically using a prime mover. For long ones, fluid pressure + 'iII is used as the prime mover.
It is necessary to use a rotary machine powered by energy, so either a single-rotation machine is mounted on the door and the piping and wiring follow the door, or a rotary machine is installed on a fixed object such as the ground and it can be moved back and forth. It consists of cables connected to the door.

10,000, If the person's luggage is caught in the #, or if the wheels of sin are run, if the door stops due to an obstacle such as a stone on the rail, an overload will be applied to the door or an overload to the rotating machine. It is necessary to provide a means to prevent these from being damaged due to

Conventionally, an overload prevention device has been installed to prevent the rotating machine from rotating to the door when an overload occurs as described above, but once the mechanical restraint between the rotating machine and the door is released, the machine ↓ Manually from motion! ! When switching to El, it is separated manually using a winter tool, so it is extremely troublesome to replace it.
If a person is caught, separation work may be carried out while the person is stuck for a long time.
There are problems such as having to wait for the process to finish, which increases the danger.

The present invention provides an automatic door opening/closing device that instantly releases the mechanical restraint between the rotary machine and the door when an overload is applied to the door, either manually or automatically. a door that opens and closes, a rotating mechanism installed on a fixed object on the mouth side of one of the rails and having a rotating machine and a winding drum that is driven in forward and reverse directions, and a working mechanism that is wound around the winding drum and laid parallel to the rail. A means for solving the above-mentioned problems is provided by a structure in which the door is latched to the cable by a connecting mechanism that can be separated by a force exceeding a certain level. .

Examples of dark service An embodiment of the present invention will be described based on the drawings.

In Fig. 1, 1^, IB are pillars, 2 and 3 are rails for running the door and guide rails for the connecting mechanism, which are installed parallel to each other between them, and 4 is a door.

Reference numeral 5 is a drive mechanism, in which two wheels 6 are placed on two rails 2 installed across a guide rail 3 laid on the ground, and two wheels 6 are mounted on each side of the door 40 to make the door 40 move laterally. ing.

- The drive groove 5 located apart from the side of the 10,000 pillar l^ has a rotary machine 7 consisting of an 11L motor capable of forward and reverse rotation, and a transmission shaft 9 driven by a belt-type drive machine +ft8. , from which the winding drum 11 is driven by a bevel gear type transmission P & mechanism 10.
and is housed in a box 12 with an M-groove structure. A part of the cable 13 from the wire rope is wound around the winding drum 11, and two winding rings 14 and 15 are rotatably installed at the bottom of the box 12, and another part of the pillar IB. The cable 13 is wound around the winding ring 16 installed near the base of the
Both ends of the cable 13 are connected and fixed to the front and back of the runner 18 of the coupling mechanism 17 (see FIG. 2). The guide rail 3 has a groove 19 in the center of its upper surface over the entire length, and the above-mentioned winding ram t4. A cable 13 is arranged that moves in parallel between ts and te.

The runner 18 is slidably secured to the guide rail 3 by fitting grooves 21 extending in the front-rear direction on both sides into projecting edges 20 on both sides of the slot 19. In addition, a coupler 23 is provided protruding from the bottom of the drive mechanism 5 of the door 4, and a rising edge 22 protruding upward from the fR-containing groove 24 and the groove 18 opened at the lower surface thereof is fitted. are doing. A conical recess 25 is provided on both sides of the rising edge 22, and the connector 23
A locking piece 28 having a hemispherical tip pushed by a spring 27 whose spring force can be adjusted by an adjustment screw 26 provided in .Spring 27
．． The locking piece 28 forms the connection mechanism 17 (fourth and fifth
(see figure).

In this embodiment configured as described above, the two-rotation machine 7 is operated to rotate the winding drum 11, so that the rope 13 is taken up and rolled in at one end, while being released at the other end. is moved along the guide rail 3, and the n4, which is locked to the cable 13 by the coupling mechanism 17, runs along the rail 2 in unison with the cable 18 and performs opening and closing operations.

When a person or cargo is caught between the door 4 and the gatepost tB, or when there is an obstacle such as a stone on the rail 2 or guide rail 3, the door 4 tries to stop and at the same time the 'rh load is applied. act. The launch 18 is traveling in the desired direction by the rotating machine 7, and the overload is applied to the spring 27 as a braking force to the 84.
When the locking force exceeds the locking force, the locking piece 28 is bent 25
After pulling it out, the runner 18 and the coupler 23 of the door 4 also come off.
n4 and cable 13 are separated.

When reconnecting, move/su18. By moving one or both of the doors 4 and aligning the launch 18 and the coupler 23, the locking piece 28 is fitted into the recess 25.

FIG. 6 shows a different embodiment of the mechanical coupler 41117 in a cross-sectional view similar to FIG. A plate-shaped ferromagnetic body 29 and a permanent magnet body 30 are provided on both sides. Normally, the locked state is maintained by magnetic force, and the door is opened and closed by the cable, but! When the overload acting on j% exceeds the locking force due to magnetic force, the case 18 comes off from the coupler 23, and the door and cable are separated. When reconnecting, it is sufficient to match the cover 18 and the coupler 23 in the same manner as in the previous embodiment.

In the above-mentioned embodiment, a rail was laid on the ground and a sliding door was mounted on it for running, but as shown in Fig. 7, a rail 2 and a drive mechanism 5 were installed on the ceiling of the entrance of the building to move the door. The present invention is also applicable to a door 4 which is opened and closed in a suspended state, and a door 4 which is a retractable door installed on a gate and which is opened and closed on a track 2 on the ground as shown in FIG.

According to the present invention, a rotary machine and a drive machine 41 having a winding drum driven by the rotary machine are installed on a group fixed object on the ground or on the ceiling, and the cables arranged parallel to the rails are reciprocated by the winding drum. Since the door running along the rail was locked to the cable by a connecting mechanism that separated it with a force above a certain level, 1. Under normal conditions, the door could be opened and closed by the cable, but two people and their luggage were caught in the door. When the door hits an obstacle such as a stone or a stone, the coupling mechanism separates manually or automatically, without the use of special tools (the rotating machine becomes unloaded almost instantly). Therefore, not only is there no need to worry about overload acting on the door for a long time and overload acting on the rotating machinery and damaging them, but also when the door is separated, the door can be separated from the rotating machinery or the cables. It can be moved, cleared of obstructions, and reconnected to the cable, making handling operations extremely simple.

[Brief explanation of the drawing]

Fig. 1 is a schematic perspective view of an embodiment of the invention, Fig. 2 is a partially cutaway perspective view showing the drive mechanism and cables, and Fig. 3 is a perspective view of the coupling mechanism and its vicinity. , Fig. 4 is a ↑η sectional view of the coupling mechanism, and Fig. 5 is a sectional view taken along the X-X line in Fig. 4.
6 is a cross-sectional view of another practical example of the coupling mechanism, and FIGS. 7 and 8 are schematic front views of different embodiments of the present invention. 2...Rail, 4...Door, 5...
・Drive mechanism. 7...One rotation machine, 11... Winding drum, 13
・・・・・・Cable. 17...Connection mechanism, 18...U/S,
23...4 N equipment.

Claims (1)

[Scope of Claims] A drive mechanism having a door that runs along a rail and opens and closes, a rotating machine installed on a fixed object at one end of the rail and a winding drum that is driven in forward and reverse directions, and a winding drum that is driven in forward and reverse directions. A door comprising a cable that is wound around and laid parallel to the rail and moves back and forth, and the door is locked to the cable by a connecting mechanism that can be separated by a force above a certain level. automatic opening and closing device.