JPH10184186A - Automatic door using hydraulic pressure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To open/close a door in power failure without using electricity as a motive power by fixing a shaft for supporting one end of the door to one of ring magnets, fixing a shaft for supporting other end of the door to the other ring magnet, and moving the door by movement of the magnets in rodless cylinders by hydraulic pressure. SOLUTION: When a force to the left direction is applied on a handle 6c to open a door 6, hydraulic pressure is acted on a rodless cylinder 5b from one end 5e via a pipe 22 and a ring magnet 4b is moved to a 5f side. The water in the rodless cylinder 5b is pushed out by the magnet so as to flow in a rodless cylinder 5a from the other end 5d side via a pipe 23. A shaft 7a provided in the ring magnet 4a and a shaft 7b provided in the ring magnet 4b pressurize the rodless cylinders 5a, 5b in the length direction respectively and the door is opened while leaving a prescribed locus. Then, a wire 3 is held by respective holding members 10a, 10b of plates 9a, 9b so that almost same force is applied on the top and the bottom of the door 6 so as to open the door smoothly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic door using a rodless cylinder, which is opened and closed by water pressure.

[0002]

2. Description of the Related Art Conventional automatic doors mainly use electricity as a power source.

[0003]

When electricity is used, there is a risk of fire due to electric leakage or the like, and it cannot be said that sufficient safety is secured especially for the elderly and the physically handicapped.

[0004]

According to a first aspect of the present invention, two rodless cylinders each having a watertight and slidable magnet inserted therein are arranged at right angles to each other. An annular magnet corresponding to the magnet is externally fitted to each of the cylinders, a shaft supporting one end of the door is fixed to the one annular magnet, and the other end of the door is fixed to the other annular magnet. An automatic door using water pressure, wherein a shaft to be supported is fixed, and the door moves in a direction of opening or closing when a magnet in a rodless cylinder moves by water pressure. According to a second aspect of the invention, two rodless cylinders each having a watertight interior and a slidable magnet inserted therein are arranged at an arbitrary angle to each other, and each of the two rodless cylinders is provided with the magnet. Corresponding annular magnets are externally fitted, a shaft supporting one end of the door is fixed to the one annular magnet, and a shaft supporting the other end of the door is fixed to the other annular magnet. There is an automatic door using water pressure, wherein the door moves in the opening or closing direction when the magnet in the rodless cylinder moves by water pressure. According to a third aspect of the present invention, the first door is moved in the opening or closing direction by a rodless cylinder in which a slidable magnet is inserted while maintaining a watertight inside, and the first door is moved by a wire rope via a plurality of rollers. Connected to the opening and closing movement of the first door.
An automatic door using water pressure, wherein a second door is provided so as to move a half distance of the movement distance of the door. According to a fourth aspect of the invention, a wire rope connects both ends via two rollers, a third door fixes one portion of the wire rope, and a fourth door is connected to a portion fixed by the third door. The other portion on the opposite side via the roller is fixed, and the third
The door is moved in the opening or closing direction by a rodless cylinder in which a slidable magnet is inserted while keeping the watertight inside, and the fourth door moves in the opposite direction to the third door. It is an automatic door using

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment of the First Invention) FIG. 1 is a perspective view of an automatic door 100 using water pressure according to the first invention as viewed from the inside of a building. A steel guide rail 1 is mounted on a concrete wall 50.
a and 1b are fixed horizontally and in parallel with a bracket (not shown) at an interval vertically.

Further, on the wall 50, pulleys 2a and 2b are provided rotatably below both ends of the guide rail 1a, and pulleys 2c and 2d are provided rotatably above both ends of the guide rail 1b. Are on the same plane and one wire 3
It is crossed. Both ends of the wire 3 are fixed by a gripping member 10a provided on a plate 9a described later.

At both ends of the guide rails 1a and 1b, stoppers 11a to 11d (11a and 11b in FIG. 1) are respectively provided.
Only display). A rodless cylinder 5a is fixed to a wall 50 above the guide rail 1a with a bracket (not shown). An entrance / exit 99 (FIG. 2) is opened in a wall 51 perpendicular to the wall 50, and the rodless cylinder 5b is fixed to the wall 51 above the entrance / exit 99 by a bracket (not shown).

Inside the rodless cylinders 5a and 5b, slidable magnets 4c and 4d (FIG. 4) are inserted in a watertight manner, and annular magnets 4a and 4b are attached to the rodless cylinders 5a and 5b. Each is fitted.

As shown in FIG. 1, a rodless cylinder 5
Pipes 21 and 22 described later are connected to one ends 5c and 5e of the rods a and 5b, respectively, and pipes 23 are connected to the other ends 5d and 5f of the rodless cylinders 5a and 5b.

A hole 6a is provided at one end of the upper surface of the door 6, and a lower end of a shaft 7a fixed to the annular magnet 4a is inserted into the hole 6a. A long hole 6b is provided at the other end of the upper surface of the door 6, and a shaft 7 fixed to the annular magnet 4b is provided in the long hole 6b.
The lower end of b is inserted.

A shaft (not shown) is provided above the vertical column 6e of the door 6, and the shaft is supported by a bearing 8a. The bearing 8a is fixed to the plate 9a via a bracket. The plate 9a is provided with a gripping member 10a which is fixedly fastened with a bolt and nut (not shown).
0a grips both ends of the wire 3 respectively. A roller (not shown) is rotatably mounted on the plate 9a, and the roller is rotatable along the guide rail 1a.

A shaft (not shown) is provided below the vertical column 6e of the door 6 in FIG. 1, and this shaft is supported by a bearing 8b. The bearing 8b is fixed to the plate 9b via a bracket. The plate 9b is provided with a gripping member 10b which is fastened and fixed with a bolt and nut (not shown), and the gripping member 10b grips the wire 3. Plate 9b
A roller (not shown) is rotatably installed in the device, and the roller is rotatable along the guide rail 1b.

As shown in FIG. 4, the rodless cylinders 5a and 5b are provided with a switching valve 12 described in Japanese Patent Application No. 8-19697 of the present applicant and opening / closing valves 13, 14, 15 described in Japanese Patent No. 2572546. They are connected as shown below.

One end 5 of rodless cylinders 5a, 5b
c and 5e are switching valves 12 through pipes 21 and 22, respectively.
A port 12a and B port 12b.

The spools 16a, 16b of the switching valve 12
Are provided on both sides of the balance piston 17a, 17b.
A pilot piston 18 provided with a piston 8a is provided, and the hydraulic pressure acting on the spools 16a and 16b from the left is greater than the hydraulic pressure acting from the right. To the left of the pilot piston 18 is the water channel 12
c is provided.

In FIG. 4, the A port 12a and the water channel 12
f communicates when the spools 16a, 16b move to the right, and closes when they move to the left. The B port 12b and the water passage 12d are configured to communicate when the spools 16a and 16b move to the left, and to close when they move to the right. The water passage 12e is provided with spools 16a, 16b.
When it moves to the left, it communicates with the A port 12a, and when it moves to the right, it communicates with the B port 12b.

The open / close valve 15 and the water passage 12c are connected to a pipe 24.
The opening / closing valve 15 and a water pipe (not shown) are connected by a pipe 26. Switching valve 12
The water passage 12e and the pipe 26 are connected by a pipe 27, and the on-off valve 13 and the pipe 26 are connected by a pipe 28.

The open / close valves 13 and 14 are connected by a pipe 29. The pipe 24 and the pipe 29 are connected by a pipe 30. One end of the pipe 25 is connected to a water storage tank (not shown), and the other end of the pipe 25 is connected to the water channel 12d.

The open / close valve 14 is connected to the pipe 25 by a pipe 32, and the water passage 12f is connected to the pipe 25 by a pipe 31. Balance piston 17b
Receives water pressure from the right as viewed in FIG. 4 by water passing through a water passage 12g communicating with the water passage 12e.

The door 6 shown in FIG. 1 is provided with a cross beam 6d, and the cross beam 6d is provided with a groove (not shown) that allows the handle 6c to slide in the horizontal direction. As shown in FIG. 3, an elongated plate 19 having slopes 19a and 19b is fixed to the handle 6c with screws 20a and 20b.
It is possible to move integrally with c in a range of a not-shown groove.

As shown in FIG. 9, the opening / closing valve 13 has a space 33 formed therein. When a water pressure is applied to the space 33, a differential pressure is generated and the projection 33b rises, and the elastic tube 33 is raised.
a is closed by the protrusion 33b as shown in FIG.
8 and the pipe 29 are not communicated. The protrusion 33b moves up and down integrally with the upper roller 33c. The opening / closing valve 14 has the same structure as the opening / closing valve 13.

The opening / closing valve 15 has the same structure as the opening / closing valves 13 and 14 except that the button 35c (FIGS. 4 and 7) is not a roller. The on-off valves 13 and 14 in FIG. 4 are installed in the cross beam 6d of the door 6 in FIG.
Is installed in a vertical column 6f on the right side of the door 6 in FIG.

As shown in FIG. 3, the roller 33c of the on-off valve 13 is in contact with the slope 19a of the plate 19,
The roller 34c of the opening / closing valve 14 is in contact with the slope 19b. When the handle 6c is moved to the left as viewed in FIG. 3, the slope 19a pushes down the roller 33c, the elastic tube 33a opens as shown in FIGS. 5 and 9, and the pipe 28 and the pipe 29 communicate with each other. When the handle 6c is moved rightward in FIG. 3, the slope 19b (FIG. 3) pushes down the roller 34c,
The pipe 29 and the pipe 32 communicate. On-off valves 13, 14
Is such that when one opens, the other closes. Note that a handle having the same structure as the handle 6c is also installed on the back surface of the door 6 so that it can be operated from either side of the door 6.

The opening / closing valve 15 shown in FIG. 4 allows the pipe 24 and the pipe 26 to communicate with each other when the door 6 (FIG. 1) bites foreign matter on the vertical column 6f side or hits a person or an object. Acts as a safety device.

Next, the operation will be described. The water pressure of the tap water acts on the pipe 26, and as shown in FIG. 4, each of the on-off valves 13 to 15 is initially closed, and the magnets 4c and 4d in the rodless cylinders 5a and 5b and the annular magnet 4
a and 4b are respectively located to the right and below as viewed in FIG. 4, and the door 6 is closed as shown in FIG.

To open the door 6, put a hand on the handle 6c and apply a little force to the left. At this time, the slope 19a shown in FIG.
Presses the roller 33c, and the pipe 28 and the pipe 29 communicate with each other. As shown in FIG. 5, the water pressure moves the spools 16a and 16b of the switching valve 12 rightward as shown in FIG. 5 via the pipes 26 and 28, the open / close valve 13, the pipes 29, 30 and 24, and the water passage 12c. .

As shown in FIG. 5, the water channel 12e and the B port 1
2b communicates and the water pressure acts on the rodless cylinder 5b from one end 5e side through the pipes 26 and 27, the water passage 12e, the B port 12b, and the pipe 22, so that the magnet 4d and the annular magnet 4b move to the other end 5f side. I do.

The water in the rodless cylinder 5b is
d, and flows into the rodless cylinder 5a through the pipe 23 from the other end 5d side.
The water on the left side is pushed out by the magnet 4c,
1, A port 12a, water channel 12f, pipe 31, pipe 2
5 flows out to a water storage tank (not shown).

A shaft 7a provided on the annular magnet 4a and a shaft 7b provided on the annular magnet 4b shown in FIG. 1 press the door 6 in the longitudinal direction of the rodless cylinders 5a and 5b, respectively. Open as shown in FIG. 2 while drawing a miracle.

At this time, since the wire 3 shown in FIG. 1 is held by the holding members 10a and 10b of the plates 9a and 9b, substantially the same force acts on the upper and lower portions of the door 6, and the plates 9a and 9b (Not shown) smoothly rotates along the guide rails 1a and 1b, and the door 6 smoothly opens.

After slightly pushing the handle 6c (FIG. 3) to the left,
The opening / closing valve 13 raises the projection 33b by the action of the water pressure, so that the pipe 28 and the pipe 29 are cut off, and the switching valve 12 (FIG. 5)
5 does not act on the left side of the spools 16a, 16b, but the pipes 24, 30, 29,
c and the water in the through hole 18a of the pilot piston 18 have no outlet, and are in a trapped state. Therefore,
As shown in FIG. 5, the spools 16a and 16b remain moved to the right end in the switching valve 12, and the door 6 (FIG. 2) maintains the fully opened state.

When closing the door 6 after passing a person or cargo, put a hand on the handle 6c (FIGS. 2 and 3) and apply a slight force to the right. At this time, the third slope 19b shown in FIG.
4c, the pipes 29 and 32 communicate with each other, and the water trapped in the pipes 24, 30, and 29 in FIG. 5 flows out to a water storage tank (not shown) through the on-off valve 14, the pipes 32, and the pipes 25. .

Since the water pressure does not act on the left side of the spools 16a and 16b in FIG. 5, the spools 16a and 16b move to the left inside the switching valve 12, and as shown in FIG. 12e, A port 12a and piping 2
1, the water pressure of the water works from one end 5c side of the rodless cylinder 5a, and presses the magnet 4c and the like to the right as viewed in FIG. 5, and moves the magnet 4c and the like to the right as shown in FIG. I do.

The water on the right side of the magnet 4c is pressed by the magnet 4c and is connected to the rodless cylinder 5b via the pipe 23 at the other end 5d.
Inflowing from the f side, the magnet 4d is pressed downward as seen in FIG.
As shown in FIG. 4, the magnet 4d moves downward. Magnet 4d
Is pressed by the magnet 4d and flows out to a water storage tank (not shown) through the pipe 22, the B port 12b, the water passage 12d, and the pipe 25, and the door 6 closes as shown in FIG.

The open / close valve 13 is always closed by the action of water pressure as shown in FIG. If a person or an obstacle collides with the right end 6g (described later in detail) of the vertical column 6f shown in FIGS. 1 and 3 during the closing operation of the door 6, the opening / closing valve 15 in FIGS. The water pressure of the tap water acts on the spools 16a and 16b from the left side as viewed in FIG. 4 via the opening / closing valve 15, the pipe 24, and the spools 16a and 16b move rightward.

At this time, as shown in FIG. 5, the water passage 12e communicates with the B port 12b, and the water passage 12e and the A port 12a
, The respective magnets 4c and 4d in the rodless cylinders 5a and 5b move to the positions shown in FIG. 5, and the door 6 is fully opened as shown in FIG.

Although only one opening / closing valve 15 (FIG. 3) is provided at the right end 6g, even if an obstacle or the like collides with any part in the height direction of the right end 6g, the opening / closing valve 15 is reliably provided. 1
As shown in FIG. 7, a hinge member 6h is provided on the opening / closing valve 15 so that the opening 5 opens.

The rod 35d of the opening / closing valve 15 passes through the hinge member 6h. The surface 6i of the button 35c and the surface 6j of the hinge member 6h are integrally fixed by a bolt and nut (not shown), and the surface 6k of the hinge member 6h and the right end 6g of the door 6 are fixed.
6m is fixed with a bolt and nut not shown,
Surface 6j of hinge member 6h via rubber interference member 6n
The hinge member 6h reliably pulls the button 35c of the open / close valve 15 and moves the protrusion 35b to the left as viewed in FIG. Open, the pipe 26 and the pipe 24 shown in FIG. 4 are communicated, and the door 6 (FIG. 2) is opened. If the protrusion 35b cannot close the elastic tube 35a only by the water pressure due to the inertia of the hinge 6h, a coil spring may be provided on the rod 35d between the hinges 6h to adjust.

Since the shaft 7a moves to the left as viewed in the plan view of FIG. 8, the direction of the door 6 is tilted to the left as shown by the doors 6 'and 6 ", and the shaft 7b is While sliding on the inner peripheral portion, the door 6 is moved upward as seen in FIG. 8 (plan view).

Since the magnets 4c and 4d in the rodless cylinders 5a and 5b (FIG. 4) move at the same speed,
The shafts 7a and 7b in FIG. 8 also move at the same speed. Therefore, in FIG. 8, the movement distances L1 to L4 of the shaft 7b and the movement distances S1 to S4 of the shaft 7a are equal.

As described above, in the embodiment of the first invention, the structure in which the switch for opening and closing the door 6 is provided on the handle 6c, but the opening and closing switch may be provided on the floor before and after the door 6. In this case, the piping of FIG. 6 is employed instead of FIG.

In FIG. 6, an open / close valve 130 having the same function as the open / close valve 13 of FIG. 4 is installed between the pipe 26 and the pipe 30 in parallel with the open / close valve 13. A throttle valve 36 to be described later is installed in place of the opening / closing valve 14 in FIG.

As shown in FIG. 6, the pipe 26 and the on-off valve 13 communicate with each other via a pipe 28.
And the throttle valve 36 communicate with each other via pipes 29 and 37. The pipe 26 communicates with the opening / closing valve 130 via a pipe 280, and the opening / closing valve 130
It communicates with the throttle valve 36 through 7.

The connecting portion of the pipe 37 with the throttle valve body 38 is concentric with the valve body 36b of the throttle valve 36, and is connected to the pipe via a gap between a valve seat 38a formed in the throttle valve body 38 and the valve body 36b. 37 and the pipe 32 communicate with each other.

The clearance between the valve element 36b of the throttle valve 36 and the valve seat 38a is adjusted, and the flow rate of water from the pipe 37 to the pipes 32 and 25 is adjusted.

Although the rodless cylinders 5a and 5b are not shown in FIG. 6, the pipes 21 and 22 and the rodless cylinders 5a and 5b are connected in the same manner as in FIG.

In FIG. 6, when the open / close valve 13 is opened,
Pipes 26 and 28, open / close valve 13, pipes 29, 30, 2
4. The spool 16 of the switching valve 12 via the water channel 12c
a, 16b is acted on by the water pressure from the left side,
6a and 16b move to the right, waterway 12e and B port 1
2b communicates, and the water pressure of the water supply is
e, transmitted through the B port 12b and the pipe 22, and FIG.
Although not shown, the magnets 4c and 4d in the rodless cylinders 5a and 5b move to the positions shown in FIG. 5, and the door 6 opens.

The opening and closing valve 13 is immediately closed by the action of the water pressure of the tap water, and the water passage 12c, the pipes 24, 30, 29,
The water in 290 and 37 gradually flows out from between the valve element 36b of the throttle valve 36 and the valve seat 38a, and is stored in the water storage tank (not shown) from the pipes 32 and 25.

As the water flows out of the throttle valve 36, the water pressure applied to the left side of the spools 16a, 16b decreases, so that the spools 16a, 16b eventually move to the left inside the switching valve 12, and the water passage 12e becomes the B port. The magnets 4c and 4d in the rodless cylinders 5a and 5b move to the positions shown in FIG. 4, and the door 6 closes. The time from when the door 6 is fully opened to when it is closed can be controlled by the speed at which water flows out of the throttle valve 36.

When the open / close valve 130 (FIG. 6) is opened, the switching valve 1 is opened in the same manner as when the open / close valve 13 is opened.
Each of the water passages 2 is communicated or shut off, the door 6 is fully opened, and the door 6 closes after a predetermined time has elapsed since water flows out of the throttle valve 36.

The on-off valves 13 and 130 are arranged on the floors on both sides of the door 6 (FIG. 1), and a rigid mat is laid on the on-off valves 13 and 130. When the opening operation and the closing operation are started, the door 6
The opening and closing operation of the door 6 can be performed smoothly and safely without consciously pressing the switch when passing through.

The on-off valves 13 and 130 may be installed on a wall, or the on-off valves 13 and 130 and the door 6 may be opened using an electric sensor or a remote controller.

When the door 6 closes, if a person or an object collides with the right end 6g (FIG. 1) of the door 6, the annular magnet 4b comes off the magnet 4d of the rodless cylinder 5b shown in FIG. It does not damage people or passing objects. When the ring-shaped magnet 4b is moved to the position of the magnet 4d, the doors 6 that have become free attract each other by the action of the magnetic force and return to the original position.

Further, when a small foreign object or a person's finger is caught just before the door 6 is completely closed, the shaft 7a shown in FIG.
The end of the door 6 on the side (the left end of the door 6 in FIG. 1) is
a and 9b are close to a right angle, so that the magnet 4d
In this case, the button 35c (FIG. 7) of the open / close valve 15 installed on the right end 6g (FIGS. 1 and 3) of the door 6 is pressed, and the pipe shown in FIG. 26 communicates with the pipe 24, the spool 16a of the switching valve 12,
16b moves rightward and the door 6 opens. The opening / closing valve 15 is
Eventually, the door was closed naturally by the action of the water pressure of the tap and opened.
Closes again.

If the shaft 7b in FIG. 1 is fixed so as to be detachable from the annular magnet 4b, the shaft 7b can be removed and the door 6 (FIG. 1) can be opened and closed by rotating the door 6 (FIG. 1) around the shaft 7a when the water is cut off. . In FIG. 4, when the pipe 21 and the pipe 22 are connected by a pipe with a valve, the valve is opened when the water is cut off, so that the door 6 (FIG. 1) is opened and closed even if there is water in the rodless cylinders 5a and 5b. be able to.

Of the respective pipes, the portions buried in the walls 50, 51 and the like are protected by a vinyl chloride pipe so that the building is not flooded. In addition, when a vinyl chloride pipe is used, water leakage can be found at an early stage. If a sprinkler is provided in the pipe 26 of FIG. 4, it is possible to extinguish water by spouting water from the sprinkler when a fire occurs.

(Embodiment of the Second Invention) The automatic door to which the second invention is applied has almost the same structure as the automatic door 100 of the first invention, but the angle formed by the rodless cylinders 5a and 5b is the first angle. In the automatic door according to the second aspect of the present invention, the wall 50 in FIG.
And even if the wall 51 is not a right angle.

(Embodiment of the Third Invention) FIG. 11 is an overall perspective view of an automatic door 200 to which the third invention is applied. Automatic door 2
00 is a first door 61, a second door 62, a rodless cylinder 63, a wire rope 64, fixed pulleys 65a and 65b, guide rails 67a and 67b, and moving pulleys 66a and 66b.
(FIGS. 13 and 15).

In FIG. 11, the guide rails 67a, 67
7b is fixed in parallel and horizontally so that the guide rail 67a faces upward. The guide rail 67a is shown in FIG.
As shown in FIG. 7, guide members 77a to 77c partially embedded in and fixed to the wall 90 are fixed by bolts and nuts (not shown).

The guide rail 67b is fixed to a guide member 78b (78a) partially embedded in the wall 90 with a bolt and nut (not shown). In FIG. 13, the guide member 78a is not visible because it overlaps the guide member 77b. Near both ends of the guide rail 67a,
Fixed pulleys 65a and 65b are installed rotatably.

In FIG. 11, blocks 68a and 68b are fixed to the upper portion of the first door 61 with bolts and nuts (not shown). The block 68a has a rodless cylinder 6
A block 69 having an annular magnet fitted to the outside 3 is integrally fixed. A holding member 72 for holding a wire rope 64 stretched as described later is fixed to the block 68a.

The shafts 70a and 71a (FIG. 14) are fixed to the blocks 68a and 68b, respectively.
As shown in FIGS. 13 and 14, rollers 70 and 71 rotatably move on rollers 71 and 71, respectively, on a guide rail 67a.

As shown in FIG. 11, blocks 73a and 73b are fixed to the upper portion of the second door 62 with bolts and nuts (not shown). As shown in FIGS. 13 and 14, shafts 74a and 74b are fixed to the block 73b.
Moving pulleys 66a and 66b are rotatably mounted on the shafts 4a and 74b, respectively. The moving pulleys 66a and 66b are shown in FIG.
As shown in FIG. 4, they are arranged on the same vertical plane as the fixed pulleys 65a and 65b.

Blocks 73a and 73b have shafts 76a and 7 on which rollers 75a and 75b are rotatably mounted, respectively.
6b is fixed. The rollers 75a and 75b are rotatable on the guide rail 67b.

As shown in FIG. 14, both ends of the rodless cylinder 63 are supported by blocks 63a and 63b fixed to a ceiling 91 with bolts 91a.

As shown in FIG. 13, bolts 9
At 0a and 90b, respectively, the spacer block 92a, the block 93a and the spacer block 92b, the block 93b
Has been fixed.

Both ends of the wire rope 64 are held between the spacer blocks 92a and 92b and the blocks 93a and 93b. Hereinafter, the sandwiched portion will be represented by blocks 93a and 93b.

As shown in FIG. 15, the wire rope 64
From the block 93b to the moving pulley 66b and the fixed pulley 65
b, 65a, and reach the block 93a via the moving pulley 66a. Fixed pulley 65a and moving pulley 66 of wire rope 64
a part between the first door 61 and the holding member 72 of the first door 61 (FIG. 11).
It is fixed at.

As shown in FIG. 13, the end of the rodless cylinder 63 on the bracket 63a side is connected to the pipe 2 shown in FIG.
2 is connected, and the pipe 21 is connected to the end on the bracket 63b side. The pipes 21 and 22 are connected to the A port 12a and the B port 12b, respectively, as shown in FIG.

In the automatic door 200 (FIG. 11) configured as described above, the open / close valves 13 and 130 in FIG.
It is arranged on the floor on both sides of the door 61 and / or the second door 62, and a mat is laid thereon.

When the automatic door 200 is opened, the automatic door 200 is placed on a mat (not shown), the opening / closing valve 13 (130) of FIG. 6 is opened, and the water pressure of the water is supplied from the pipe 22 (FIGS. 6, 13) to the rodless cylinder. Acting on 63, the first door 61 integral with the block 69 is moved to the left as viewed in FIG.

When the first door 61 moves to the left, the gripping member 72 (FIG. 11) also moves from the position shown in FIG. 15 to the position shown in FIG.
66b also moves to the left. At this time, the moving pulleys 66a, 6
The distance L6 traveled by 6b is half the distance L5 traveled by the gripping member 72. Therefore, the first door 61 and the second door 62 in the fully closed state shown in FIG.
6 is moved to a fully open state as shown in FIG.

When a person or cargo passes through the automatic door 200 and no load is applied on the mat, the open / close valve 1 shown in FIG.
3 (130) is closed, and as the water flows out of the throttle valve 36 of FIG. 6, the water passages of the switching valve 12 are communicated or shut off, and the block 69 of FIG. 12 moves to the position of FIG.

At this time, since the gripping member 72 returns to the original position shown in FIG. 15, the moving pulleys 66a and 66b also return to the original positions shown in FIG. Therefore, the first door 61, the second door 6
2 closes as shown in FIG.

(Embodiment of the Fourth Invention) FIG. 17 is a schematic front view of an automatic door 300 to which the fourth invention is applied. The automatic door 300 includes a third door 80, a fourth door 81, a rodless cylinder 82, fixed pulleys 83a and 83b, and the like.

A magnet is inserted into the rodless cylinder 82 as in the first embodiment, and a block 84 having an annular magnet corresponding to the magnet is formed by a plate 85a and bolts (not shown). The plate 85a is fixed to the second door 81 with bolts 86a.

A holding member 87a is fixed to the block 84 with a bolt (not shown). Bolt 8 on third door 80
The gripping member 87b is fixed at 6b.

Both ends of the rodless cylinder 82 are supported by brackets 82a and 82b fixed to a wall (not shown). Bracket 82a of rodless cylinder 82
The pipe 21 in FIG. 6 is connected to an end on the side of the bracket 82b, and a pipe 22 is connected to an end on the side of the bracket 82b.

The wire rope 88 is fixed to pulleys 83a, 83
b, and both ends are fixed with fixing members (not shown). Also, wire rope 88
Is gripped by gripping members 87a and 87b.

As in the third embodiment, the automatic door 300
The opening / closing valve 13 or the opening / closing valve 130 is installed on the floor on both sides of the above, and a mat is laid thereon. When a person or cargo is placed on the mat, the open / close valve 13 (130) opens, water pressure acts on the rodless cylinder 82 from the bracket 82b side, and the fourth door 81 and the gripping member 87a integrated with the block 84 move to the left. Moving.

At this time, the wire rope 88 is
Since it is towed by a, it rotates while rotating the fixed pulleys 83a and 83b counterclockwise. At the same time, the holding member 87b holding the wire rope 88 is pulled by the wire rope 88, and the third door 80 moves to the right, and becomes the fully opened state in FIG.

When there is no person on the mat (not shown), the open / close valve 13 (130) in FIG. 6 is closed, and the water pressure of the tap water acts on the bracket 82a of the rodless cylinder 82 (FIG. 18) from the pipe 21 to block. The 84, the fourth door 81, and the gripping member 87a move rightward as viewed in FIG. At the same time, the third door 80 and the gripping member 87b are pulled by the wire rope 88 and move to the left as viewed in FIG. 18, and the third door 80 and the fourth door 81 are fully closed as shown in FIG. Becomes

If the open / close valve 15 shown in FIG. 6 is installed on either the left end side of the third door 80 or the right end side of the fourth door 81, even if foreign matter collides when the automatic door 300 closes, the first
Acts as a safety device as described in the embodiment of the invention. In the case where the door is small and lightweight, even without such a safety device, when a foreign object collides, the magnet and the block 84 in the rodless cylinder 82 come off and the inertia force of the door is small. It does not damage foreign objects.

In FIG. 6, the pipe 26 or the pipe 2
Opening / closing valve 15 and opening / closing valve 1 between 80 and piping 30
When the open / close valves having the same structure as in FIG. 5 are installed in parallel and provided on the left end side of the third door 80 and the right end side of the fourth door 81 in FIG. Even if a collision occurs, the automatic door 300 starts the opening operation, and the safety is improved.

The rodless cylinder 8 according to the fourth embodiment of the present invention
For 2, it is preferable to use a rodless cylinder with a cushion described in Japanese Patent No. 2562565.

[0086]

According to the conventional electric automatic door, the electric contacts are frequently damaged due to the influence of high temperature and high humidity.
Since the automatic door using the water pressure of the invention has no electric circuit,
Such troubles do not occur, and the electric spark is safe without the risk of fire occurring due to the ignition of the lubricating oil of the automatic door. Further, the automatic doors of the first to fourth inventions are:
Even if installed in a gas atmosphere, there is no danger of explosion due to sparks, and it is safe.

The automatic doors of the first to fourth inventions do not use electricity for power, and can be opened and closed even during a power failure. In addition, when the water pressure of the tap water is used, an electric motor, a hydraulic pump, and the like are not required, so that the fuel is not ignited by heat generation and is safe.

When water is cut off, the annular magnet can be easily and manually opened by separating (slipping) the magnet from the magnet in the rodless cylinder. By removing the safety device, it can be opened and closed manually even if the water supply is cut off for a long time.

When the water pressure of the tap is used as the power, the cost for opening and closing the door is almost negligible, and is less expensive than using electricity. When the water pressure of the tap water is used, noise is not generated by an electric motor, a speed reducer, a hydraulic pump, and the like, so that the operation is quiet. In the event of a fire, water can leak out of the pipes to help extinguish the fire. Since the rodless cylinder is used, water does not leak out of the rodless cylinder even if the sliding packing or the like is worn. Since no oil is used, even if a small amount of water leaks from a pipe joint or the like, no serious harm occurs. The consumable parts are inexpensive, the maintenance cost is low, and it is economical. In addition to the water pressure of tap water, water pressurized by a pressurizing pump can be used, and the first to fourth inventions can be applied to places where there is no pipe for tap water.

In the revolving door, an object cannot be placed in the space in which the door rotates and moves. However, when the first invention is applied, the space occupied by the door when the door moves is smaller than that in the conventional revolving door. In addition, the space that cannot be used conventionally can be effectively used. In addition, when passing through a wheelchair, it is hard to interfere with the moving door, and the safety for the handicapped is improved.

When the second invention is applied, a rotary door can be installed even if the entrance and the side wall are not perpendicular.
That is, the automatic door of the second invention is applicable even if the entrance and the side wall form an acute angle or an obtuse angle (including 180 degrees).

When the third invention is applied, two doors can be opened and closed at a lower cost than when driven electrically. The existing manual sliding door can be easily converted to the automatic door of the third invention.

When the fourth invention is applied, the door can be easily opened at low cost. Similar to the automatic door of the third invention, the existing manual sliding door can be easily converted to the automatic door of the fourth invention.

[Brief description of the drawings]

FIG. 1 is a perspective view of an automatic door (closed state) of the first invention.

FIG. 2 is a perspective view of the automatic door (open state) of the first invention.

FIG. 3 is a schematic vertical sectional front view of a handle portion of the door of FIG. 1;

FIG. 4 is a piping system diagram for driving the automatic doors of the first and second inventions.

FIG. 5 is a piping system diagram for driving the automatic doors of the first and second inventions.

FIG. 6 is another piping system diagram for driving the automatic doors of the first to fourth inventions.

FIG. 7 is a sectional view taken along the line VII-VII of FIG. 3;

FIG. 8 is a plan view showing the trajectory of the automatic door according to the first invention.

9 is an enlarged vertical sectional front view (open state) of the on-off valve shown in FIG. 4;

FIG. 10 is an enlarged vertical sectional front view (closed state) of the on-off valve of FIG. 4;

FIG. 11 is a perspective view of an automatic door (closed state) of the third invention.

FIG. 12 is a perspective view of an automatic door (open state) of the third invention.

FIG. 13 is a schematic plan view of the automatic door of the third invention.

FIG. 14 is a view taken in the direction of arrows XIV-XIV in FIG. 11;

FIG. 15 is a schematic front view showing the positional relationship (closed state) between the first and second doors of the automatic door of the third invention.

FIG. 16 is a schematic front view showing the positional relationship (open state) of the first and second doors of the automatic door of the third invention.

FIG. 17 is a schematic front view of the automatic door (closed state) of the fourth invention.

FIG. 18 is a schematic front view of the automatic door (open state) of the fourth invention.

[Explanation of symbols]

 4a, 4b Ring magnet 4c, 4d Magnet 5a, 5b Rodless cylinder 7a, 7b Shaft 61 First door 62 Second door 64 Wire rope 65a, 65b Fixed pulley (roller) 66a, 66b Moving pulley (roller) 80 Third door 81 Fourth door 82 Rodless cylinder 83a, 83b Fixed pulley (roller) 87a, 87b Gripping portion 88 Wire rope

Claims (4)

[Claims] 1. Two rodless cylinders each having a watertight and slidable magnet inserted therein are arranged at right angles to each other, and each of the two rodless cylinders corresponds to the magnet. An annular magnet is externally fitted, a shaft supporting one end of the door is fixed to the one annular magnet, and a shaft supporting the other end of the door is fixed to the other annular magnet, When the magnet in the rodless cylinder moves due to water pressure,
An automatic door using water pressure, wherein the door moves in an opening or closing direction. 2. Two rodless cylinders having watertight and slidable magnets inserted therein are arranged at an arbitrary angle to each other, and each of the two rodless cylinders has the magnet attached thereto. A corresponding annular magnet is fitted around the shaft, a shaft supporting one end of the door is fixed to the one annular magnet, and a shaft supporting the other end of the door is fixed to the other annular magnet. Yes, when the magnet in the rodless cylinder moves due to water pressure,
An automatic door using water pressure, wherein the door moves in an opening or closing direction. 3. A first door which is moved in an opening or closing direction by a rodless cylinder having a watertight and slidable magnet inserted therein, and a first rope which is moved by a wire rope via a plurality of rollers. An automatic door using water pressure, wherein a second door is provided so as to be connected and move half the moving distance of the first door following the opening and closing movement of the first door. 4. A wire rope connects both ends via two rollers, a third door fixes one portion of the wire rope, and a fourth door is connected to a portion fixed by the third door. The other part is fixed at the opposite side via a roller, and the third door is moved in the opening or closing direction by a rodless cylinder in which a slidable magnet is inserted while keeping the inside watertight. An automatic door using water pressure, wherein the door moves in a direction opposite to the third door.