JPH08144631A - Door open/close device - Google Patents

Abstract

PURPOSE: To obtain a gate open/close device consisting of simple constitution at a low cost. CONSTITUTION: This device opens and closes a gate slidably or turnably, and a long-sized movable rod (5) and flexible membrane bodies working the movable rod (5) as a piston are disposed into guide cylinders (4), thus constituting a device body. A door interlocking means is mounted between the movable rod (5) and the door of the gate, and the flexible membrane bodies are composed of central recessed sections (61) on the innermost sides connected at one end of the movable rod (5), annular protruded sections (62) formed around the central recessed sections (61), and connecting sections (63) formed on the outsides of the annular protruded sections (62) and coupled with the base end peripheral edges (41) of the guide cylinders (4). Fluid introducing ports (9) are formed at the base end sections of the guide cylinders (4), and the movable rod (5) is forwarded freely in the axial direction of the guide cylinders (4) while the annular protruded sections (62) are shifted gradually in the direction of pressure by fluid pressure, thus opening and closing the door.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing device.

[0002]

2. Description of the Related Art Conventionally, doors include gates attached to entrances and exits of schools, factories, etc., or revolving doors and sliding doors provided in a general house.

Many of the above-mentioned gates are of a slide type that slides on and off a rail to open and close, and such gates are generally made of iron in order to increase rigidity. Therefore, it is a heavy object, but in general, it is currently opened and closed manually.

[0004]

It takes a lot of labor to manually open and close the gate, which is a heavy object, and in particular, the rolling wheels of the gate tend to be squeaky for a long period of time, and the opening and closing by human power is difficult. It was often difficult.

Further, since a large force is applied at the beginning of opening / closing, the opening / closing speed of the gate may be too fast.

In this case, the gate may collide with a person or an object, which is very dangerous, and if a person is sandwiched between the gate and the gate pillar, a serious accident may occur.

[0007] Further, the door in the general house is usually a manual door from the viewpoint of cost, but for example, a person with a handicap in the body is desired to have an automatic opening / closing door.

Therefore, it is possible to use an electric actuator to automatically open and close the door smoothly and at a constant speed, but there is a problem that this is quite expensive.

An object of the present invention is to provide a door opening / closing device which can solve the above problems.

[0010]

SUMMARY OF THE INVENTION According to the present invention, there is provided a door opening / closing device for opening / closing a door slidably or rotatably, wherein a movable rod is provided in a guide cylinder having a bottom and a tip opening. A flexible film body for causing the movable rod to act as a piston is arranged to form an apparatus main body, and the apparatus main body is arranged in a horizontal state, and a door interlocking device is provided between the movable rod and the door. The flexible film body is formed on the innermost side, is formed on the outer side of the central recessed portion connected to the base end of the movable rod, the annular raised portion formed around the central recessed portion, and the annular raised portion. The guide tube is provided with a connecting portion that is connected to the peripheral edge of the proximal end of the guide tube, and the proximal end of the guide tube is provided with a fluid introduction port for introducing a fluid into the flexible film body. , Guide the movable rod while gradually moving the annular ridge in the pressing direction. Those of the door opening and closing device, characterized in that the door as a freely advancing in the axial direction can be opened and closed in.

The present invention is also characterized by the following configurations.

(A) In the apparatus main body, a pair of guide cylinders are arranged at a constant interval from each other, and their openings are arranged to face each other. The rod is configured to be able to reciprocate between both guide cylinders.

(B) A plurality of the above apparatus main bodies are arranged.

(C) The door slides along the rail portion.

(D) The apparatus main body has an arc shape in which the guide cylinder and the movable rod are curved with the same curvature.

(E) The interlocking means comprises an engaging portion provided on the movable rod or the door, and an engaged portion provided on the door or the movable rod corresponding to the engaging portion.

(F) Fluid pressure regulating means for regulating the fluid pressure so as not to exceed a certain value is provided.

(G) The switchgear body was buried in the ground.

[0019]

Embodiments of _the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 is an explanatory view of a door opening / closing device according to the first embodiment when viewed from the front, FIG. 2 is an explanatory view when viewed from the same plane, FIG. 3 is an explanatory view when viewed from the same side, and FIG. Is a schematic explanatory view of the same.

In this embodiment, the door opening / closing device A will be described as being applied to a large gate provided at the entrance of a school or factory. 1 to 3, reference numeral 1 denotes a fence surrounding the site. A gate 2 is provided on the fence 1, and a door 3 as a large gate for opening and closing the gate 2 is attached along a rail portion 10 so as to be slidable left and right. There is.

The door 3 has a rectangular bottom frame 31 having a length commensurate with the opening width of the gate 2, and a fence 32 is erected on the front edge of the rectangular bottom frame 31, and the upper end of the fence 32 and the rear end of the bottom frame 31 are connected to each other. Auxiliary frame
It is connected and supported by 33. Reference numeral 34 is a rolling wheel attached to the lower surface of the bottom frame 31.

A door opening / closing device A according to the present invention is provided with the above-mentioned door 3 so as to be automatically opened and closed, and has a long movable rod 5 and the same movable rod in a guide cylinder 4 having a bottom and a tip opening. 5
And the flexible film body 6 for acting as a piston are arranged to configure the apparatus main body A1.

In the apparatus main body A1 of the present embodiment, a pair of guide cylinders 4, 4 are arranged with a certain distance therebetween, and their openings are opposed to each other, and one movable rod 5 is provided. And the movable rod 5
Can be reciprocated between both guide cylinders 4, 4.

Then, the apparatus main body A1 is embedded horizontally in the ground so as to be located directly below the door 3, and door interlocking means 7 is provided between the movable rod 5 and the door 3 to move the movable rod 5 forward and backward. The door 3 is opened and closed in conjunction with.

8 is a storage box buried in the ground,
The apparatus main body A1 is housed in the same housing box 8.

Further, the upper surface of the storage box 8 can be freely opened and closed so that the apparatus body A1 can be easily arranged and maintained. Further, a slender opening 81 is formed on the upper surface in accordance with the moving distance of the door 3 in order to slide the connecting rod 71 of the door interlocking means 7 described below.

The door interlocking means 7 includes an engaging portion attached to the movable rod 5 or the lower member of the door 3, and an engaged member provided to the lower member of the door 3 or the movable rod 5 corresponding to the engaging portion. In this embodiment, as shown in FIG.
A cylindrical projection 51 is provided in the middle of the movable rod 5, and a connecting rod 71 is attached to one end of the bottom frame 31 of the door 3 so as to be able to move up and down, and the connecting rod formed in the cylindrical projection 51 is inserted. The door 3 is interlocked with the movable rod 5 by inserting the connecting rod 71 into the portion.

Reference numeral 72 is a gripping portion provided on the connecting rod 71, and the gripping portion 72 is engageable with the engaging portion of the connecting rod supporting metal fitting 73 attached to the bottom frame 31, and the movable rod 5 and the door 3 are connected to each other. When the engagement is released, the connecting rod 71 may be pulled up and locked.

Further, as a modification, as shown in FIG. 6, the connecting rod 71 can be screwed to the cylindrical projection 51 of the movable rod 5, and the connecting rod insertion hole 75 is provided on the side of the bottom frame 31 of the door 3. Can also be Even in this case, the engagement between the movable rod 5 and the door 3 can be easily released by removing the connecting rod 71 from the cylindrical projection 51.

In addition to the structure described above, the structure is not particularly limited as long as the door 3 can be interlocked with the movable rod 5.

By the way, the above-mentioned flexible film body 6 is shown in FIG.
As shown in, a central recess 61 formed on the innermost side and connected to one end of the movable rod 5, an annular ridge 62 formed around the central recess 61, and formed outside the annular ridge 62, It comprises a connecting portion 63 connected to the base end peripheral edge 41 of the guide cylinder 4.

As shown in FIG. 7, the flexible frame 6 is formed in a tubular shape having the same diameter from one end to the other end,
One end of the flexible film body 6 is connected to the base end peripheral edge of the guide cylinder 4.
In addition to being connected to 41, the other end is connected to the base end 52 of the movable rod 5 with the other end folded back to form a fluid filling space Q inside.

A fluid inlet 9 for introducing a fluid into the fluid filling space Q is provided at the base end of the guide cylinder 4.

Due to the fluid pressure from the fluid inlet 9, the door opening / closing device A allows the movable rod 5 to advance in the axial direction of the guide cylinder 4 while gradually moving the annular raised portion 62 in the pressurizing direction. The door 3 can be opened and closed via the door interlocking means 7.

That is, the flexible film body 6 has a sufficient length and is in a bent state when no water pressure is applied, but water is introduced from the fluid inlet 9 into the fluid filling space Q. When flowed in, the flexible film body 6 is extended by moving the annular raised portion 62 gradually upward by water pressure, and the movable rod 5 can be advanced.

In addition, since the annular raised portion 62 can also serve the function of guiding the movable rod 5 at the time of advancing, the operation is smooth.

At this time, the advancing speed of the movable rod 5 can be arbitrarily set by changing the width of the end surface (pressure receiving surface) of the movable rod 5.

In FIG. 4, R is a water passage connecting the fluid inlets 9 and 9 of the pair of guide cylinders 4 and 4 via the pressure feed pump P. The pressure feed pump P and the fluid inlet 9 on one side are connected to each other. And a second water passage R2 that communicatively connects the pressure feed pump P and the fluid introduction port 9 on the other side.
The pressure feed pump P is housed in the functional unit case F as shown in FIGS. 1 and 2.

With the above structure, water as a working fluid for operating the movable rod 5 can be supplied only by the amount sealed in the closed system of the water passage R. That is, by driving the pressure pump P, water is supplied to the fluid filling space Q of the pair of guide cylinders 4, 4.
The movable rod 5 can be moved in the left-right direction by moving in Q to generate fluid pressure.

Further, the water passage R is provided with a fluid pressure regulating means D for regulating the fluid pressure so as not to exceed a certain value.

That is, the fluid pressure regulating means D is constituted by a bypass flow passage B having a diameter smaller than that of the water passage R bypassing the first water passage R1 and the second water passage R2.

For example, when water is pressure-fed to the first water passage R1 side by the pressure-feeding pump P and the door 3 is completely closed, or when the door 3 is fully opened and the door 3 cannot slide anymore, Although the water pressure in the water channel R1 increases, when the water pressure exceeds a certain level, water flows from the bypass channel B to the second water channel R2 and the water pressure does not exceed the certain voltage.

Therefore, there is no risk of damaging the apparatus body A1 and it is safe even if, for example, a person is accidentally caught by the door 3.

As the fluid pressure regulating means D, check valves may be provided in the first and second water passages R1 and R2 so that the water escapes to the outside of the system when a certain pressure is exceeded.

In FIG. 4, reference numeral C denotes an operation panel, which has a control unit built therein and is provided with an operation switch, and is electrically connected to the pressure feed pump P.

The operation panel C is installed near the gate 2 in order to facilitate the opening / closing operation of the door 3. In this embodiment, the operation panel C is attached to the inner surface of the fence 1 as shown in FIGS. ing.

Reference numeral 44 is a bearing provided at the open end of the guide cylinder 4, and slidably supports the movable rod 5 while maintaining watertightness.

Although the flexible film body 6 described above is made of rubber in this embodiment, it may be made of cloth or the like for waterproofing.

Although water is used as the fluid for generating the fluid pressure in this embodiment, oil can be used in addition to water. Further, although air or the like can be used, it is desirable to use an incompressible fluid for advancing amount and positioning of the movable rod 5.

The case where the door opening / closing device A is actually used will be described below.

When the door 3 is opened, when an open switch (not shown) provided on the operation panel C is pushed, the pressure feed pump P is operated, and the fluid filling space Q in the other guide cylinder 4 and the second water passage R2.
The water inside is sent into the one fluid filling space Q from the first water passage R1, the movable rod 5 is advanced to the left in FIGS. 1 and 2, and the door 3 is opened through the door interlocking means 7.

At this time, when the door 3 comes into contact with some obstacle during movement and the fluid pressure in the first water passage R1 rises and exceeds a certain value, the fluid pressure regulating means D operates and the water bypasses. It returns from the flow passage B to the second water passage R2 side to prevent pressure rise.

Further, for example, a limit switch is provided,
The completely open state is detected by the limit switch, driving of the pressure feed pump P is stopped, and the opening operation is ended.

When closing the door 3, the operation panel C is used.
Press the close switch (not shown) provided on the pressure pump P
And the fluid filling space Q in one guide cylinder 4 and the water in the first water passage R1 from the second water passage R2 to the other fluid filling space Q.
Then, the movable rod 5 is advanced to the right in FIGS. 1 and 2, and the door 3 is closed via the gate interlocking means 7.

Even in this case, if an obstacle or the like comes into contact with the door 3 to increase the water pressure in the second water passage R2, the fluid pressure regulating means D operates to ensure safety.

Thus, the door opening / closing device A according to the present invention
Has a simple structure, has few failures, can be manufactured at low cost, and can be widely used.

(Second Embodiment) Here, the second embodiment shown in FIG.
Examples will be described.

This is applied to a type in which the door 3 is composed of a left door 3a and a right door 3b, each of which horizontally moves and abuts each other at the center of the gate 2 to close the gate 2, and the left and right doors 3
The apparatus main body A1 is connected to each of a and 3b through a door interlocking means 7. In this case, two pressure feed pumps P are also provided,
The door opening / closing device A has the same function as the door opening / closing device A because they are configured to be interlocked with each other by a drive signal from the operation panel C.

(Third Embodiment) Further, the third of the door opening / closing device A is used.
An example will be described.

As shown in FIG. 9, the door 3 is provided with a first actuator E1 acting in the opening direction and a second actuator E2 acting in the closing direction on the left and right sides of the door 3. They are arranged respectively.

The first and second actuators E1 and E2 have basically the same structure as the switchgear body A1 in the first embodiment, but differ in that they are provided with movable rods E3 and E4, respectively.

As shown in FIG. 9, the movable rods E3 and E4 are brought into contact with the left and right ends of the door 3 so that the door 3 is opened and closed by operating each side. The flow path of water serving as a fluid is a main water path R3 that connects a water source (not shown) and a flow path switching valve V to each other via a pressure pump P.
And a first branch passage R4 that branches from the flow passage switching valve V and communicates with the first actuator E1, and a second branch water passage R5 that communicates with the second actuator E2. It is configured to be switched.

The flow path switching valve V is electrically connected to the operation panel C and operates in conjunction with the on / off of the opening / closing switch of the panel C to connect the main water passage R3 and the first branch passage R4. When communicating, to connect the second branch R5 and the drainage R6, and when connecting the main waterway R3 and the second branch R5, the first branch R4 and the drainage R6. It can be switched so that it can communicate.

That is, when the open switch is turned on, water from the pressure pump P passes through the flow path switching valve V to the second branch passage.
It flows to R5, the second actuator E2 acts, the movable rod E4 advances, and pushes the door 3 in the opening direction (left direction in FIG. 8).
At this time, the water in the first actuator E1 flows into the first branch R4.
Through the flow path switching valve V to flow out of the drainage channel R6 to the outside of the system so as not to resist the opening operation of the door 3.

When the closing switch of the operation panel C is turned on, the door 3 can be closed in the opposite manner to the above.

In addition to the above structure, each actuator E
It is also possible to directly connect 1 and E2 to a water faucet or the like and supply water to each actuator E1 and E2 by opening and closing the faucet to operate them appropriately.

(Fourth Embodiment) Next, as a fourth embodiment,
The door opening / closing device A applied when the sliding door 3 is inside the general house will be described.

As shown in FIG. 10, in the third embodiment, the door 3 is provided with the first actuator E1 which acts in the opening direction and the second actuator E2 which acts in the closing direction. The first and second actuators E1 and E2 have the same configuration as the example and the switchgear body A1 in the first embodiment, but here, the first actuator E1 and the second actuator E2 are Are arranged with their axial centers shifted vertically. W is a wall.

The tips of the movable rods E3 and E4 are connected to each other by a crank-shaped connecting tool E5, and the connecting tool E5 and the door 3 are interlockingly connected by a door interlocking means 7.

With this configuration, each actuator E1, E
The length of 2 can be shortened so that there is no problem in arranging it in a general house.

(Fifth Embodiment) Next, as a fifth embodiment,
A door opening / closing device A applied to a rotary type in which the door 3 rotates around the pivot 3a to open and close will be described.

As shown in FIGS. 11 and 12, the device main body A1 of the door opening / closing device A has an arc shape in which the guide cylinder 4 and the movable rod 5 are curved with the same curvature.

That is, the door opening / closing device A in this embodiment
Also, basically, the movable rod 5 moves in an arc, although it has the same structure and the same operation as the switchgear main body A1 of the first embodiment. Therefore, the door 3 can be opened and closed by rotating the door 3 around the pivot 3a.

Also in this embodiment, the door opening / closing device A and the door 3
Is connected with the door interlocking means 7, and the door interlocking means 7 is
A connecting tool 91 is detachably attached between a locking portion 5a provided in the middle of the movable rod 5 and a locking portion 3b provided on the upper side of the door 3.

Therefore, the door 3 can also be used as a normal manual type by removing the connecting tool 91.

In the above fourth embodiment and this embodiment, the door 3 is generally used in the interior of a house or a building. For example, the door 3 is opened by an opening / closing switch C1 attached to a wall or the like.
If you can open and close automatically, people who are using a wheelchair,
In addition, it is extremely useful for the daily life of people with handicap in the body, and also convenient for healthy people.

Moreover, the door opening / closing device A has a simple structure and can be manufactured at a low cost, and can be sufficiently spread to general households.

[0079]

The present invention has the following effects.

With a simple structure, even if the door is a heavy object, it can be opened and closed automatically. For example, if the door is a large gate for a factory, school, etc., the labor such as a gatekeeper can be greatly reduced. You can

A smooth operation can be realized and it is safe.

Since it can be provided at low cost and can be applied to general houses, it can be widely spread. It is especially useful for people with handicaps.

The arrangement and maintenance of the device are easy.

[Brief description of drawings]

FIG. 1 is a front view of a gate opening / closing device according to a first embodiment.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of the same.

FIG. 4 is a schematic explanatory view of the same.

FIG. 5 is an explanatory view showing one form of door interlocking means.

FIG. 6 is an explanatory view showing one form of door interlocking means.

FIG. 7 is an explanatory diagram of a flexible film body.

FIG. 8 is an explanatory diagram of a door opening / closing device according to a second embodiment.

FIG. 9 is an explanatory diagram of a door opening / closing device according to a third embodiment.

FIG. 10 is an explanatory diagram of a door opening / closing device according to a fourth embodiment.

FIG. 11 is an explanatory diagram of a door opening / closing device according to a fifth embodiment.

FIG. 12 is an explanatory view showing the same mounting state.

[Explanation of symbols]

 3 Gate 4 Guide tube 5 Movable rod 6 Flexible membrane 7 Gate interlocking means 9 Fluid inlet 41 Base edge 61 Central recess 62 Annular ridge 63 Connection A Gate opening / closing device A1 Opening / closing device body R Rail part

Claims (8)

[Claims] 1. A door opening / closing device for opening / closing a door (3) slidably or rotatably, wherein a movable rod (5) is provided in a bottomed guide cylinder (4).
And a flexible film body (6) for causing the movable rod (5) to act as a piston to form the device body (A1), and the device body (A1) is arranged horizontally. In addition, the door interlocking means (7) is provided between the movable rod (5) and the door (3), and the flexible film body (6) is formed on the innermost side,
A central recess (61) connected to the base end of (5) and the same central recess (61)
The annular ridge (62) formed around the and the annular ridge (62)
And a connecting portion (63) that is formed on the outer side of the guide tube (4) and is connected to the base end peripheral edge (41) of the guide tube (4). ) Is provided with a fluid introduction port (9) for introducing a fluid, and while the fluid pressure from the fluid introduction port (9) causes the annular ridge (62) to gradually move in the pressurizing direction, the movable rod (5 ) Is movable in the axial direction of the guide tube (4) and the door (3) can be opened and closed. 2. The device body (A1) is a pair of guide cylinders.
(4) are spaced apart from each other and are arranged with their openings facing each other.
(5) and share the rod (5) with both guide tubes.
The door opening / closing device according to claim 1, wherein the door opening / closing device is configured to be capable of reciprocating between (4) and (4). 3. The door opening / closing device according to claim 1, wherein a plurality of the device main bodies (A1) are arranged. 4. The door opening / closing device according to claim 1, wherein the door (3) slides along a rail portion (10). 5. The door opening / closing according to claim 1, wherein the apparatus body (A1) has an arc shape in which the guide cylinder (4) and the movable rod (5) are curved with the same curvature. apparatus. 6. The interlocking means (7) comprises a movable rod (5),
Alternatively, it comprises an engaging portion provided on the door (3) and an engaged portion provided on the door (3) corresponding to the engaging portion or the movable rod (5). 5. The door opening / closing device according to any one of 5. 7. The door opening / closing device according to claim 1, further comprising a fluid pressure regulating means (D) for regulating the fluid pressure so as not to exceed a certain value. 8. The door opening / closing device according to claim 1, wherein the opening / closing device main body (A1) is buried in the ground.