JPH09256728A - Horizontally sliding door having forced closing device, forced closing device for sliding door and method therepor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To select the presence of a forced closing device, to facilitate addition of the forced closing device at a later stage, and besides to easily confirm that a sliding door is forcibly closed, an to easily return the forced closing device. SOLUTION: A timing belt 204 connected to a horizontally sliding door is run around a driven pulley 6 and the driven pulley 6 is rotated according to opening and closing of the sliding door. When a sliding door is released and stopped by a given time by a user, a stopper arm 9 of a sliding door stop device 8 pressurizes the timing belt 204 to maintain the stop state of the sliding door. A forced closing device 3 has a shaft 2 for release is moved in the direction of an arrow mark 92 when abnormality occurs, and pushes up the stopper arm 9 of the sliding door stop device 8, releases limitation on the driven pulley 6, and automatically closes the sliding door. Through movement of the shaft 2 for release, a taper part 35 is forced into contact with a roller part 24, and a switch 22 is turned ON to output a closing confirmation signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique of forcibly closing a sliding door that is opened and closed along a rail provided on a wall surface, and particularly for a sliding door that is opened and held in a stopped state. Technology for closing in.

[0002]

[Prior art]

1. First Conventional Example As a sliding door having a forced closing device, Japanese Patent Laid-Open No. 7-189
There is a rotary member operation automatic switching device described in Japanese Patent No. 39 (first prior art example). This first conventional example is shown in FIG.
It will be described based on. In the first conventional example, when the person who opens and closes opens the sliding door, the door always stops at the opening position. Then, when the person who opens and closes applies a constant force in the closing direction, thereafter, the sliding door automatically closes.

As shown in FIG. 20A, a rail 70 is fixed above the wall surface 12. On the other hand, door wheels 71, 72 are rotatably provided on the sliding door 10.
1, 72 are mounted on the rail 70. And door car 7
The sliding door 10 opens and closes in the directions of arrows 90 and 91 when the rollers 1 and 72 roll on the rail 70. In addition, rail 7
0 is inclined toward the closing direction (direction of arrow 90),
The sliding door 10 is automatically closed by its own weight.

The door roller 71 is provided with a control gear body 73. FIG. 20B shows a detailed enlarged view of the vicinity of the door roller 71 and the control gear body 73. A mounting bracket 78 is fixed to the sliding door 10, and a door roller 71 is provided on the mounting bracket 78. The door roller 71 rotates around the main shaft 71J. Further, a gear portion is fixed to the door roller 71 and rotates integrally with the door roller 71.

A rotating plate 74 is rotatably attached to the mounting member 78 about a pin 74J.
The rotating plate 74 is further provided with a control gear body 73. The control gear body 73 is rotatable around a support shaft 73J, and the control gear body 73 is integrally provided with a gear portion. As shown in FIG. 20B, during normal times, the door roller 71
And the gear portion of the control gear body 73 mesh with each other.

An electromagnet 75 is provided on the rotating plate 74, and a stopper 76 is controlled to project and retract from the electromagnet 75. The stopper 76 projects coaxially with the support shaft 73J and the pin 74J. Then, on the mounting metal fitting 78 side,
A locking hole corresponding to the stopper 76 is formed, and the protruding stopper 76 is fitted into the locking hole, as shown in FIG.
The positions of the rotating plate 74 and the control gear body 73 shown in FIG. 0B, that is, the meshing of the gear portion of the door roller 71 and the gear portion of the control gear body 73 is held.

When the person who opens and closes the sliding door 10 shown in FIG. 20A in the direction of arrow 91, the door roller 71 rolls on the rail 70 in response to the opening operation. As a result, the control gear body 73 meshed with the gear portion also rotates.
Here, a clutch mechanism is incorporated in the control gear body 73, and when the sliding door 10 is opened and stopped, the control gear body 73 is locked at the stop position and does not rotate. Since the rotation of the control gear body 73 is locked, the rotation of the door roller 71 meshing via the gear portion is also limited at the same time, and the sliding door 10 stops at the opened position.

The clutch mechanism in the control gear body 73 is
When a torque above a certain level is applied, the locked state is released,
The control gear body 73 is switched to a rotatable state. That is, from the state where the sliding door 10 is opened,
When the person who opens and closes applies a force of a predetermined amount or more in the closing direction (direction of arrow 91), the locked state is released, and the door roller 71 becomes rotatable. Since the rail 70 is inclined in the direction of the arrow 90 as described above, the sliding door 10 will be automatically closed thereafter by its own weight.

By the way, when an abnormality such as a fire occurs,
In order to prevent the spread of fire and the spread of smoke, it is necessary to forcibly close the sliding door 10 that is stopped in the open state. In this case, in the first conventional example, for example, an electric signal is applied to the electromagnet 75 from a centralized control room or the like to attract the stopper 76.

When the stopper 76 is sucked, the engagement between the stopper 76 and the locking hole 77 (FIG. 20C) formed in the mounting metal fitting 78 is released, and the rotating plate 74 rotates in the direction of the arrow 120 by its own weight. Move and fall. This state is shown in FIG. 20C. As a result, the gear portion of the control gear body 73 and the gear portion of the door roller 71 are disengaged, the door roller 71 becomes free, and the sliding door 10 automatically closes in the direction of arrow 90 by its own weight. In this way, the sliding door 10 can be forcibly closed when an abnormality occurs.

2. Second Conventional Example As a second conventional example of a sliding door having a forced closing device, an automatic traveling operation switching device for a moving body described in JP-A-7-18940 is cited. This second conventional example will be described with reference to FIG.

In the second conventional example, the person who opens and closes the sliding door 1
When 0 is opened relatively narrowly (movement within the free section 79a), the sliding door 10 is immediately closed by its own weight. On the other hand, when the person who opens and closes is relatively wide open (movement within the control section 79b), the person is in the locked state as in the case of the first conventional example, and the person who opens and closes applies a predetermined force or more in the closing direction. To be closed.

As shown in FIG. 21, rails 70 are provided on the wall surface as in the first conventional example. This rail 70 also inclines toward the closing direction (direction of arrow 90). Further, door wheels 81, 82 are attached to the sliding door 10 via mounting metal fittings 88, 89, and the sliding doors 10 roll arrows on the rails 70, so that the sliding door 10 is indicated by arrows 90, 91. Open and close in the direction.

A rack gear 8 is partially provided below the rail 70.
0 is formed. The range where the rack gear 80 is provided is configured as a control section 79b, and the range where the rack gear 80 is not provided is configured as a free section 79a. The mounting bracket 89 is provided with a rotating plate 84 that is rotatable around a pin 84J.

Further, a gear portion 83 which rotates about a support shaft 83J is attached to the rotating plate 84. A pinion gear 87 is formed in the gear portion 83, and the pinion gear 87 and the rack gear 80 can mesh with each other. Further, the rotating plate 84 is provided with an electromagnet 85, and a stopper 86 is controlled to be retracted from the electromagnet 85.

The stopper 86 projects coaxially with the pin 84J and fits into the locking hole formed in the mounting metal fitting 89, and the rotary plate 84 and the control gear body 83 shown by solid lines in FIG.
Holding the position.

When the person who opens and closes opens the sliding door 10 relatively narrowly, the gear portion 83 moves within the free section 79a, and the pinion gear 87 formed on the gear portion 83 and the rack gear 80 do not mesh with each other. Therefore, the sliding door 10 immediately closes in the direction of arrow 90 by its own weight. On the other hand, the person who opens and closes opens the sliding door 10 relatively wide, and the gear portion 83 moves the control section 79
When it enters into b, the pinion gear 87 and the rack gear 80 mesh.

A clutch mechanism similar to that of the first conventional example is incorporated in the gear portion 83. That is, sliding door 10
Is released until the control section 79b is reached, the gear portion 83 is locked at the stop position and does not rotate. When the rotation of the gear portion 83 is locked, the sliding door 10 stops at the opened position.

Then, like the first conventional example, when the person who opens and closes applies a predetermined force or more to the sliding door 10 in the opened state in the closing direction (direction of arrow 91), the gear portion 83
The locked state is released, and the gear portion 83 becomes rotatable. Since the gear part 83 becomes rotatable, the sliding door 10
Automatically closes under its own weight.

When an abnormality such as a fire occurs, in the second conventional example, an electric signal is applied to the electromagnet 85 from the centralized control room or the like to attract the stopper 86. When the stopper 86 is sucked, the fitting between the stopper 86 and the locking hole formed in the fitting 78 is released. And
The rotating plate 84 rotates in the direction of the arrow 121 due to its own weight and falls down, and is positioned in a broken line state shown in FIG.

As a result, the engagement between the pinion gear 87 of the gear portion 83 and the rack gear 80 is released, and the sliding door 10 is automatically closed in the direction of arrow 90 by its own weight. In this way, the sliding door 10 can be forcibly closed when an abnormality occurs.

[0022]

The first conventional example and the second conventional example have the following problems. Sliding doors are installed in various places, and depending on the installation environment, the forced closing device may not be necessary. In addition, there are cases where it is desired to install a forced closing device later on a sliding door that was not provided with the forced closing device at the beginning of installation.

However, in the first conventional example, the forced closing device constituted by the rotating plate 74, the electromagnet 75, etc.
1. It is configured as an integral part of the control gear body 73 and the like. Also in the second conventional example, the forced closing device such as the rotating plate 84 and the gear portion 83 is provided in the sliding door 10 integrally with the door roller 82 and the like. As described above, the conventional sliding door configuration has a problem that it is not possible to select the presence or absence of the forced closing device, and the forced closing device cannot be easily added later.

Further, in the first conventional example and the second conventional example,
There is also a problem that it is not possible to easily confirm whether or not the electromagnet 75 (FIG. 20) and the electromagnet 85 (FIG. 21) are properly operated and the sliding door is forcibly closed. That is, from the central control room or the like that controls the forced closing of the sliding doors, the electromagnet 75,
It is not possible to reliably grasp the operating status of 85.

Further, when the forced closing device is returned to the normal state after the sliding door is forcibly closed, in the configurations of the first conventional example and the second conventional example, the rotating plates 74 and 84 are directly rotated to return. I have to let you. In particular, the forced closing device is provided at a position where it does not hinder the normal opening / closing operation, for example, at a high position such as the upper part of the sliding door as shown in the first conventional example and the second conventional example. There is a problem that is not easy.

Therefore, in the present invention, the presence or absence of the forced closing device can be selected, the forced closing device can be easily added later, and it can be easily confirmed that the sliding door is forcedly closed. It is an object of the present invention to provide a sliding door having a forced closing device capable of easily returning the forced closing device, a device and a method for closing the sliding door.

[0027]

A sliding door having a forced closing device according to a first aspect of the present invention has a rotating portion that opens or closes along a rail provided on a wall surface and that interlocks in accordance with the opening or closing operation. The sliding door that automatically moves in the closing direction from the open position, the stopping device for holding the stopped state of the sliding door under a predetermined condition, and the stopping device attached to the stopping device. A sliding door having a forced closing device including a forced closing device for forcibly closing the held sliding door, wherein the stopping device passes through the center of the rotating portion and one point on the outer peripheral surface. A stopping arm arranged on the reference line, one end of which moves back and forth on the reference line and the other end of which moves reciprocates in both directions sandwiching the reference line while being in contact with the outer peripheral surface of the rotating part. Arm, for stop Urging part that urges the movable other end of the arm toward the reference line, the stop arm is pressed against the outer peripheral surface of the rotating part, and the movable other end of the stop arm is positioned on the reference line. And a pressing unit that holds the stopped state of the rotating unit by the pressing force, provided that the rotation of the rotating unit is stopped for a predetermined time, and the forced closing device can be switched to a forced release position or a normal position. A releasing member that is in the normal position when the switching arm is switched to the forced release position by pressing the stopping arm that holds the stopped state of the rotating unit to release the stopped state of the rotating unit. At this time, a release member positioned so as not to abut the stop arm, and an operating portion connected to the release member and switching the release member to a forced release position or a normal position are provided.

A sliding door having a forced closing device according to a second aspect is the sliding door having the forced closing device according to the first aspect, and outputs a closing confirmation signal when the release member is switched to the forced releasing position. And a closing confirmation signal output section for switching.

A sliding door having a forced closing device according to a third aspect is the sliding door having the forced closing device according to the first aspect, further comprising a returning member for returning the releasing member in the forced releasing position to a normal position. The return member is
It is characterized in that it is exposed outside the sliding door so as to be operable from the outside.

A sliding door having the forced closing device according to claim 4 is the sliding door having the forced closing device according to claim 3, wherein the sliding door is provided with a movable guide portion, and the return member is guided to the guide portion. It is exposed outside the sliding door, and the exposed position of the returning member from the sliding door can be changed by moving the guide portion.

A forced stop device for a sliding door according to a fifth aspect is a release member that can be switched to a forced release position or a normal position, and is interlocked according to an opening operation or a closing operation of the sliding door when switched to the forced release position. By pressing the rotating part, the stopping arm holding the stopped state of the rotating part is pressed to release the stopped state of the rotating part, and does not contact the stopping arm when in the normal position. The release member located in the state, connected to the release member,
An operating portion for switching the release member to a forced release position or a normal position is provided.

According to a sixth aspect of the present invention, in the method for forcibly closing a sliding door, when the sliding door is opened or closed along a rail provided on a wall surface, the rotating portion is rotated in conjunction with the opening or closing operation. The rotation arm presses the rotating part on condition that the rotation of the rotating part is stopped for a predetermined time, and holds the stopped state of the rotating part.
The releasing member pressurizes the stopping arm that holds the stopped state of the rotating unit, releases the stopped state of the rotating unit, and forcibly closes the sliding door.

[0033]

In the sliding door having the forced closing device according to the first aspect of the present invention, the releasing member provided in the forced closing device can be switched to the forced releasing position or the normal position, and when it is switched to the forced releasing position, it rotates. The stopping arm that holds the stopped state of the section is pressurized to release the stopped state of the rotating section, and is positioned so as not to abut the stopping arm when in the normal position. The actuating portion is connected to the release member, and switches the release member to the forced release position or the normal position.

Therefore, for example, when an abnormality such as a fire occurs, the operating portion can be operated and the releasing member can be switched to the forced releasing position to release the stopped state of the rotating portion. That is, by releasing the stopped state of the rotating portion, the sliding door automatically moves in the closing direction, and the sliding door can be reliably forcibly closed when an abnormality occurs.

The forced closing device is attached to the stop device, and the forced closing device and the stop device are configured as independent devices. Therefore, it is possible to attach and add the forced closing device later to the sliding door provided with the stopping device. That is, the presence or absence of the forced closing device can be selected, and the forced closing device can be easily added later.

Further, since the forcible closing device is constructed as an independent device, when the forcible closing device is attached or detached, it is not necessary to work, for example, by lowering the sliding door from the rail, and workability during attachment and detachment is good.

In the sliding door having the forced closing device according to the second aspect, the closing confirmation signal output section outputs the closing confirmation signal when the releasing member is switched to the forced releasing position. That is, by taking in the closing confirmation signal, it is possible to confirm that the releasing member is switched to the forced releasing position, the stopped state of the rotating portion is released, and the sliding door is forcedly closed.

In the sliding door having the forced closing device according to the third aspect, there is provided a returning member for returning the releasing member in the forced releasing position to the normal position. The returning member is exposed and positioned outside the sliding door so as to be operable from the outside. Therefore, the release member can be easily returned to the normal position by operating the return member from the outside.

The sliding door having the forced closing device according to the fourth aspect is provided with a movable guide portion, and the return member is guided to the guide portion and exposed to the outside of the sliding door. Then, the exposed position of the return member from the sliding door can be changed by moving the guide portion.
Therefore, it is possible to select an appropriate exposure position of the return member according to the installation conditions of the sliding door, the stop device, and the forced closing device.

In the forced stop device for the sliding door according to the fifth aspect, the release member can be switched to the forced release position or the normal position. When the release member is switched to the forced release position, the release member presses the rotating portion that interlocks in accordance with the opening operation or the closing operation of the sliding door to pressurize the stop arm that holds the stopped state of the rotating portion. To release the stopped state of the rotating part. Also, the release member is
When it is in the normal position, it is positioned so as not to contact the stopping arm. The actuating portion is connected to the release member and switches the release member to the forced release position or the normal position.

Therefore, for example, when an abnormality such as a fire occurs, the operating portion can be operated and the release member can be switched to the forced release position to release the stopped state of the rotating portion. That is, by releasing the stopped state of the rotating portion, the sliding door can be forcibly closed reliably when an abnormality occurs.

In the method for forcibly closing the sliding door according to the sixth aspect, when the sliding door is opened or closed along the rail provided on the wall surface, the rotating portion is rotated in conjunction with the opening or closing operation. ing. Further, on condition that the rotation of the rotating unit is stopped for a predetermined time, the stopping arm presses the rotating unit and holds the stopped state of the rotating unit. And
At the time of forced closing, the release member pressurizes the stopping arm that holds the stopped state of the rotating unit to release the stopped state of the rotating unit and forcibly closes the sliding door.

Therefore, for example, when an abnormality such as a fire occurs, the stopped state of the rotating portion can be released by the release member. That is, by releasing the stopped state of the rotating portion, the sliding door can be forcibly closed reliably when an abnormality occurs.

[0044]

BEST MODE FOR CARRYING OUT THE INVENTION

1. First Embodiment A first embodiment of a sliding door having a forced closing device, a forced closing device for a sliding door, and a method according to the present invention will be described with reference to FIGS.
It will be described based on. The following (1) in the present embodiment
Details of the sliding door and the stop device, (2) normal operation, (3) details of the forced closing device, (4) operation at the time of forced closing, and (5) return operation will be sequentially described.

(1) Details of Sliding Door and Stopping Device FIG. 1 is an overall schematic view of the sliding door 10, the sliding door stopping device 8, the forced closing device 3 and the like. Door roller attachment 2 fixed to sliding door 10
Door rollers 202 and 203 are attached to 52 and 253, respectively. The door rollers 202, 203 are mounted on a rail 205 provided on the wall surface 12, and
When 03 rolls, the sliding door 10 opens (arrow 90 direction) or closes (arrow 91 direction) along the rail 205.

One end of the timing belt 204 is fixed to the belt fixing member 255 of the door roller mounting member 252, and the timing belt 2 is fixed to the belt fixing member 254 of the door roller mounting member 253.
The other end of 04 is fixed. The timing belt 204 is stretched between the sliding door closer rotating portion 207 and the driven pulley 6.

The sliding door closer rotating portion 207 and the driven pulley 6 are attached to the wall surface 12, and are located at both ends of the rail 205. It should be noted that the spring 256 provided on the belt fixture 254 can ensure sufficient tension of the timing belt 204.

When the sliding door 10 is opened in the direction of arrow 90,
Sliding door closer rotating part 2 by timing belt 204
07, the driven pulley 6 rotates in the direction of arrow 96. When closed, the mainspring mechanism of the sliding door closer causes the sliding door closer rotating portion 207 to reversely return in the direction of arrow 97,
The sliding door 10 is automatically closed (in the direction of arrow 91).

In this embodiment, the driven pulley 6 is a rotating portion, and the driven pulley 6 is provided with a sliding door stopping device 8. The driven pulley 6 is driven by the pressing operation of the stopper arm 9 as the stopping arm of the sliding door stopping device 8.
Is restricted, and the stop control of the sliding door 10 is performed.

FIGS. 15 and 16 show details of the driven pulley 6 and the sliding door stopping device 8. 15A, 16A and 16B are front views and FIG. 15B is a bottom view, and the forced closing device 3 is omitted in all of them.

A slider 250 movable in the directions of arrows 90 and 91 is housed in the sliding door stopping device 8, and the slider 250 is pressed in the direction of arrow 91 by a compression spring 213 which is a pressing portion. This compression spring 213
The pressing force of can be adjusted by the adjusting screw 214.

Inside the slider 250, a stopper arm shaft 9J as one central end is provided, and the stopper arm 9 is rotatably supported. The stopper arm shaft 9J is inserted into a guide hole (not shown) formed in the housing of the sliding door stopping device 8 in the shape of an elongated hole, and an arrow 90,
It is movable in 91 directions.

The stopper arm shaft 9J is arranged on a reference line L1 passing through the center of the driven pulley shaft 6J and a point P1 on the outer circumference of the driven pulley 6. That is, the stopper arm shaft 9J is connected to the slider 2
By sliding movement of 50, it is possible to reciprocate on the reference line L1 within the range of the guide hole.

A fixed pin F is provided in the slider 250.
1 is provided, and a tension spring 212, which is a biasing portion, is hooked between the stopper arm 9 and the arm pin F2. Since the fixing pin F1 in the slider 250 is also located on the reference line L1, the arm tip portion (movable other end portion) 9H of the rotating stopper arm 9 is set to the reference line L1.
Energize in the direction toward.

The arm tip portion 9H is always in contact with the timing belt 204 on the outer peripheral surface of the driven pulley 6 by the urging force of the tension spring 212. Further, by rotating the stopper arm 9 around the stopper arm shaft 9J, the arm tip portion 9H
Moves reciprocally in both directions sandwiching the reference line L1.

(2) Normal operation In the present embodiment, since the sliding door stopping device 8 is provided, the sliding door 10 is automatically closed or the sliding door 10 is stopped by a natural opening / closing operation of the person opening / closing. Is maintained. Below, when the sliding door 10 is automatically closed,
The case where the stopped state of is maintained will be described.

First, the case where the sliding door 10 is automatically closed will be described. The person who opens and closes the sliding door 10 in the direction of arrow 90 (Fig. 1)
Apply force to open. In this case, the timing belt 2
The driven pulley 6 rotates in the direction of arrow 96 according to the movement of 04, and the arm tip portion 9H of the stopper arm 9 is flipped up by the timing belt 204 as shown in FIG. 15A.

After opening and closing the sliding door 10 to the desired position, the person opening and closing immediately releases the force on the sliding door 10.
Then, the sliding door closer automatically closes the sliding door 10 in the direction of arrow 91 (FIG. 1), and the driven pulley 6 reverses in the direction of arrow 97 as the timing belt 204 moves.

By the rotation of the driven pulley 6 in the direction of the arrow 97 and the urging force of the tension spring 12, the arm tip portion 9H of the stopper arm 9 is once positioned on the reference line L1 as shown in FIG. The driven pulley 6 is pulled down to the opposite side of the reference line L1 by the rotational force of the driven pulley 6. FIG. 16B shows a state in which the arm tip portion 9H is pulled down.

As shown in FIG. 16A, the arm tip portion 9H
Is located on the reference line L1, the compression spring 1
3 is compressed, and the slider 25 is moved by the length of the retreat width S1.
0 retreats in the direction of arrow 90. Further, as shown in FIG. 16B, in a state in which the arm tip portion 9H is pulled down, the tension spring 212 moves the arm tip portion 9H to the reference line L1.
I tried to move it closer to the driven pulley 6
The momentum of rotation is prevailing. Therefore, the state shown in FIG. 16B is maintained, and the driven pulley 6 continues to rotate.

After the arm tip portion 9H is pulled down as shown in FIG. 16B, the sliding door closer automatically closes the sliding door 10 in the direction of arrow 91 (FIG. 1). In this way, when the person opening and closing opens the sliding door 10 and immediately releases the force, the sliding door 10 is automatically closed.

Next, the case where the stopped state of the sliding door 10 is maintained will be described. First, the person who opens and closes opens the sliding door 10 in the direction of arrow 90 (FIG. 1), and the stopper arm 9 is brought into the state shown in FIG. And the person who opens and closes is the sliding door 10.
After being opened to a desired position, the sliding door 10 is stopped at that position for a predetermined time. For example, the sliding door 10 is stopped at that position for about 1 to 2 seconds.

The driven pulley 6 does not rotate for several seconds, but the arm tip portion 9H of the stopper arm 9 is positioned on the reference line L1 by the urging force of the tension spring 212 (FIG. 16A). After this, the person opening and closing releases the force on the sliding door 10. In this case, unlike the case where the force applied to the sliding door 10 is immediately released, since the driven pulley 6 has no rotational force, the arm tip portion 9H is not pulled down as shown in FIG. 16B and the state shown in FIG. 16A is maintained. It

That is, the slider 50 is pressed by the compression spring 13 in the direction of arrow 91, and the stopper arm 9
The arm tip portion 9H presses the driven pulley 6 and the timing belt 204 to stop the rotation of the driven pulley 6. Thereby, the stopped state of the sliding door 10 is maintained.

In this way, when the person who opens and closes naturally stops the opening operation for 1 to 2 seconds in order to stop the sliding door 10 at a desired position, the sliding door 10 maintains the stopped state at that position. . When the sliding door 10 needs to be closed from the stopped state, when a slight force is applied in the direction of arrow 91, the arm tip portion 9H is pulled down as shown in FIG. 16B, and thereafter, it is automatically closed by the sliding door closer.

As described above, the sliding door 10 is automatically closed by the pressing force of the stopper arm 9 against the driven pulley 6, or the stopped state of the sliding door 10 is maintained. The pressing force of the stopper arm 9 is equal to that of the adjusting screw 2 as described above.
It is possible to make an adjustment with 14, and it is possible to make a fine adjustment to an optimum pressing force with respect to the rotational force of the driven pulley 6 by the sliding door closer.

Further, if the pressing force of the stopper arm 9 is strengthened, it is possible to adjust the sliding door 10 to stop at that position even when the opening / closing person releases the force immediately after opening the sliding door 10. On the contrary, by adjusting the pressing force to zero, it is possible to easily switch to the state without the sliding door stop device without removing the sliding door stop device.

(3) Details of Forced Closing Device Next, details of the forced closing device 3 will be described with reference to the drawings.
FIG. 2 is an enlarged front view showing the details of the driven pulley 6, the sliding door stopping device 8 and the forced closing device 3 in the present embodiment, and FIGS. 3 to 5 are partial sectional views thereof. FIG. 6 is an enlarged plan view of the vicinity of the driven pulley 6, the sliding door stopping device 8 and the forced closing device 3, and FIG. 7 is a left side view thereof.

Further, FIG. 8 is a sectional view taken along line VIII-VIII shown in FIG. 3, FIG. 9 is a sectional view taken along line IX-IX shown in FIG. 3, and FIG. 10 is taken along line X- shown in FIG. FIG. 6 is a cross-sectional view taken along the arrow X. 11 is a plan view of the forced closing device 3,
FIG. 12 is a front view of the driven pulley 6 and the sliding door stopping device 8. Further, FIG. 13 shows a state in which the forced closing device 3 is attached to the sliding door stopping device 8. FIG. 14 is a right side view of the driven pulley 6 and the forced closing device 3.

As shown in FIGS. 2 to 5 and 8, the forced closing device 3 is provided with a block 27, and a bearing 31 is fixed to the block 27.
A through hole is formed in the bearing 31, and the release shaft (release member) 2 is inserted into this through hole. The releasing shaft 2 is held in the through hole so as to be movable up and down in the directions of arrows 92 and 93. The releasing shaft 2 is located below the stopper arm 9 of the sliding door stopping device 8 described above.

Upper and lower pins 29 and 28 are provided at the upper and lower positions of the releasing shaft 2 to prevent them from coming off, thereby restricting the range of vertical movement. A taper portion 35 is formed below the releasing shaft 2.

FIG. 2 shows a state in which the stopper arm 9 of the sliding door stopping device 8 is flipped up and the sliding door 10 is moved open in the direction of arrow 90 as described above (see FIG. 1). ). 3 and 4, the stopper arm 9H of the stopper arm 9 is the timing belt 204.
Is being pressed, and the sliding door 10 is stopped at a predetermined open position. In addition, FIG. 5 shows the releasing shaft 2.
The stopper arm 9 is pushed up by the sliding door 1
0 indicates a state in which it is forcibly closed.

The state shown in FIGS. 2 and 3 is the normal position of the releasing shaft 2 in this embodiment, and the state shown in FIG. 5 is the forced releasing position of the releasing shaft 2 in this embodiment.

As shown in FIGS. 10 and 11, a lever shaft 4J is fixed to the main body fitting 19 of the forced closing device 3, and two levers 4 are mounted on the lever shaft 4J via a bearing 43. It is held rotatably. On the lever shaft 4J,
A retaining ring 44 for preventing the lever 4 from coming off is fixed.
As shown in FIGS. 2 to 5, the two levers 4 are T
It is formed in a V shape, and is connected and fixed integrally by shafts 13, 14, and 15 in a state of facing each other.

On the other hand, a groove 34 is formed below the above-mentioned releasing shaft 2, and the shaft 13 is inserted and positioned in this groove 34. When the lever 4 rotates in the direction of arrow 96 about the lever shaft 4J, the releasing shaft 2 moves in the direction of arrow 92 in response to the rotation of the lever 4 and pushes up the stopper arm 9 of the sliding door stopping device 8. It has become. Since the groove 34 of the releasing shaft 2 is formed relatively deep, even if the lever 4 rotates in the direction of arrow 96, the shaft 13 does not drop out of the groove 34.

As shown in FIGS. 6, 11 and 14,
A shaft 45 is fixed between the body fittings 19 on both sides,
One end of the tension spring 21 is hooked on the shaft 45.
The other end of the tension spring 21 is hooked on the shaft 13 described above. In FIG. 3, the releasing shaft 2 is in a normal position, and is housed in the block 27 so as not to contact the stopper arm 9.

When the releasing shaft 2 is in the normal position, the center line L4 of the tension spring 21 is located below the center point of the lever shaft 4J (direction of arrow 93). Therefore, the tension of the tension spring 21 urges the lever 4 to rotate in the direction of arrow 97.

The forced closing device 3 is a solenoid (actuator) 3
8, the solenoid shaft 39 projects in the direction of arrow 91 based on the received forced closing signal. The forced closing signal is sent from the central control room or the like to the solenoid 38 through the lead wire 33.
Given to. The moving member 25 is connected to the solenoid shaft 39, and the groove 26 formed in the moving member 25 is connected to the moving member 25.
The above-mentioned shaft 14 is inserted in.

That is, when the solenoid 38 is excited and the solenoid shaft 39 moves in the direction of arrow 91, the moving member 25 pushes out the shaft 14 held in the groove 26. In response to this, the lever 4 rotates in the direction of arrow 96 about the lever shaft 4J, and raises the releasing shaft 2 in the direction of arrow 92. Since the groove 26 of the moving member 25 is formed relatively deep, the shaft 14 does not drop out of the groove 26 even if the lever 4 rotates in the direction of arrow 96.

Further, the forced closing device 3 is provided with a switch (closing confirmation signal output section) 22. The switch 22 has an arm portion 23, and a roller portion 24 is provided at the tip of the arm portion 23. This arm part 23
Is urged to the outside (direction of arrow 97), and the roller portion 24 is positioned in contact with the releasing shaft 2.

The circuit configuration of the switch 22 is shown in FIG.
The contact of the switch 22 is normally in contact with the side of 22a, and the forced closing signal given from the central control room through the lead wire 33a is taken into the solenoid 38 through the lead wire 33c. When the solenoid 38 is excited based on the forced closing signal and the releasing shaft 2 moves upward in the direction of arrow 92, the taper portion 35 formed on the releasing shaft 2 moves the roller portion 24 inside (arrow 96).
Direction).

As a result, the contact of the switch 22 is 22
Switch to side b. As a result, the forced closing signal input to the solenoid 38 is cut off, and at the same time, the forced closing signal given through the lead wire 33a is sent to the central control room as a closing confirmation signal through the lead wire 33b.

As shown in FIGS. 1 to 5, a reset wire (returning member) 30 is connected to the shaft 13 provided on the lever 4. The reset wire 30 passes under the shaft 15 as shown in FIG.
Further, it passes through the upper side of the shaft 20 and hangs downward.
A pipe 42 is attached to the shaft 15 as shown in FIG. 10, and the reset wire 30 is in contact with the pipe 42.

As shown in FIG. 14, a guide portion 17 is attached to the shaft 45, and the guide portion 17 is slidable along the shaft 45 in the directions of arrows 94 and 95. In addition, the guide portion 17 is
The position can be fixed.

Next, the procedure for attaching the forced closing device 3 to the sliding door stopping device 8 will be described. As shown in FIGS. 12 and 13, the housing 40 of the sliding door stop device 8 projects laterally. On the other hand, the forcible closing device 3 has a fitting 3
7 is fixed. Then, the housing 40 is covered with the mounting bracket 37, and the housing 4 is placed in the insertion space 37S.
Position 0 (see FIG. 13) and insert the spacer 41 (FIG. 11) from the outside. After that, the spacer 41 is fixed to the mounting member 37 using the screw 36.

Further, the shaft 4 fixed to the body fitting 19
Reference numeral 5 has a hollow structure, and the long screw 16 is passed through the shaft 45 and screwed into the wall surface 12 (see FIG. 11). In this way, the forced closing device 3 is attached to the sliding door stop device 8, and the wall surface 1
Fixed to 2.

As described above, the forced closing device 3 is attached to the sliding door stop device 8, and the forced closing device 3 and the sliding door stop device 8 are configured as independent devices. Therefore, the forced closing device 3 can be attached and added later to the sliding door 10 provided with the sliding door stop device 8. That is, the presence or absence of the forced closing device 3 can be selected, and the forced closing device 3 can be easily added later. Further, when attaching / detaching the forced closing device 3 to / from the sliding door stopping device 8, it is not necessary to lower the sliding door 10 from the rail 205 to work, and workability at the time of attachment / detachment is good.

Furthermore, since the forced closing device 3 is attached to the driven pulley 6 and the sliding door stopping device 8 which are fixed to the wall surface 12, the position of the forced closing device 3 moves as the sliding door 10 moves. There is no such thing. On the contrary,
For example, in the conventional example shown in FIGS. 20 and 21, the electromagnets 75 and 85 move together with the sliding door 10, and the electromagnets 75 and 8 move.
There is a possibility that a lead wire for giving a signal to 5 may be entangled with a peripheral member and broken. That is, in the present embodiment, since the forced closing device 3 does not move with the movement of the sliding door 10, it is possible to avoid disconnection of the lead wire 33.

(4) Operation at the time of forced closing For example, when a fire or the like occurs, it is necessary to forcibly close the sliding door 10 which is maintained in the open state in order to prevent the spread of fire and the spread of smoke. In the present embodiment, in such a case, a forced closing signal is transmitted from the central control room or the like and given to the forced closing device 3.

Assuming now that, as shown in FIG. 3, the stopper arm 9 of the sliding door stopping device 8 presses the timing belt 204, and the sliding door 10 is stopped in the open state. The forced closing signal from the central control room, etc.
Is taken in by the solenoid 38 of the forced closing device 3, and the solenoid 38 is excited in response to this, and the solenoid shaft 39 moves in the direction of arrow 91.

As the solenoid shaft 39 moves in the direction of arrow 91, the moving member 25 pushes the shaft 14 as described above. In response to this, the lever 4 rotates about the lever shaft 4J in the direction of arrow 96. As described above, since the lever 4 is biased in the direction of arrow 97 by the tension of the tension spring 21, the solenoid shaft 39 of the solenoid 38 moves in the direction of arrow 91 by the force exceeding the bias of the tension spring 21.

Here, when the lever 4 rotates in the direction of the arrow 96 and the axis L4 of the tension spring 21 is located on the center point of the lever shaft 4J, the tension spring 21 expands to the maximum.
Then, from this state, the lever 4 further rotates in the direction of arrow 96, and the tension spring 21 rotates the lever 4 in the direction of arrow 96 from the time when the axis L4 of the tension spring 21 exceeds the center point of the lever shaft 4J. I will start to urge you.

Thus, the releasing shaft 2 is moved by the moving member 2
In addition to the movement of 5, the tension spring 21 urges the urging force, and the force of the urging force increases in the direction of arrow 92. FIG. 4 shows a state where the releasing shaft 2 is raised in the direction of the arrow 92, and FIG. 5 is a state where the releasing shaft 2 is raised to the limit.

As shown in FIG. 5, when the releasing shaft 2 is moved upward in the direction of arrow 92, the stopper arm 9
Is pushed upward, and the pressure applied to the timing belt 204 by the arm tip portion 9H of the stopper arm 9 is forcibly released. As a result, the driven pulley 6 is released from the restriction, and thereafter, the sliding door closer rotating portion 20 shown in FIG.
According to the rotation return operation of 7, the sliding door 10 automatically moves in the direction of the arrow 91, and the sliding door 10 is forcibly closed.

As described above, when an abnormality such as a fire occurs,
By operating the solenoid 38 and switching the release shaft 2 to the forced release position, the sliding door 10 can be reliably forcibly closed. In the state shown in FIG. 5, since the lever 4 is biased by the tension spring 21 in the direction of arrow 96, the state shown in FIG. 5 is reliably maintained after the forced release operation is performed once. . Even if the sliding door 10 is opened in this state, the stopper arm 9 does not pressurize the timing belt 204.
0 does not stop in the open state.

Further, as shown in FIG. 5, the releasing shaft 2
Is raised in the direction of arrow 92, the tapered portion 35 formed on the releasing shaft 2 presses the roller portion 24. As a result, the forced closing signal given through the lead wire 33a as described above is taken into the central control room or the like via the lead wire 33b as a closing confirmation signal, and a confirmation display such as a lamp display is performed.

As described above, by capturing the closing confirmation signal, it is possible to confirm that the releasing shaft 2 is switched to the forcibly released position, the stopped state of the driven pulley 6 is released, and the sliding door 10 is forcibly closed. .

(5) Return Operation After the sliding door 10 is forcibly closed, it is necessary to return the releasing shaft 2 from the forced releasing position shown in FIG. 5 to the normal position. In this case, in this embodiment, the reset wire 3
0 is pulled down in the direction of arrow 93. That is, by pulling down the reset wire 30, the shaft 13 shown in FIG. 5 is pulled in the arrow 97 direction.

In the state shown in FIG. 5, since the lever 4 is biased by the tension spring 21 in the direction of arrow 96, the reset wire 30 is pulled downward by a force exceeding this biasing force. As a result, the lever 4 rotates in the direction of arrow 97, and returns from the state shown in FIG. 4 to the state shown in FIG.

Thus, the reset wire 30 is
Since it is exposed outside the sliding door 10 so as to be operable from the outside, the resetting wire 30 can be easily returned to the normal position by operating the reset wire 30 from the outside.

Further, as described above, the reset wire 3
0 is guided by the guide portion 17 and hangs outward. As shown in FIG. 14, the guide portion 17 is located in the state shown by the solid line, and the reset wire 30 is exposed in the front direction shown in FIG. On the other hand, if the guide portion 17 is moved in the direction of the arrow 94 and positioned in the state shown by the broken line, the reset wire 30 can be exposed from the rear surface side of the sliding door 10. The position of the guide portion 17 is fixed by the screw 18 as described above.

In this way, the reset wire 30 is
It is exposed to the outside of the sliding door 10 by being guided by the guide portion 17, and the position of the reset wire 30 can be changed by moving the guide portion 17. Therefore, an appropriate exposed position of the reset wire 30 can be selected according to the installation situation of the sliding door 10, the sliding door stop device 8, the forced closing device 3, and the like.

Another guide portion is provided near the sliding door 10, and the reset wire 30 is guided to the sliding door 10 for example.
It is also possible to expose the reset wire 30 from the vicinity of the head. Further, when returning the releasing shaft 2 to the normal position, the pipe 42 (FIG. 10) provided on the shaft 15 may be directly pushed up.

2. Second Embodiment Next, FIG. 18 shows a second embodiment of a sliding door having a forced closing device according to the present invention, a sliding door forced closing device and a method. In the first embodiment, the wall surface 12 is provided with the sliding door closer rotating portion 207, and the sliding door closer rotating portion 2 is provided.
The sliding door 10 is automatically closed in the direction of arrow 91 by the mainspring mechanism 07.

On the other hand, in the present embodiment, the driven pulley 4 is used in place of the sliding door closer rotating portion 207.
6 is provided. Then, the rail 205 is inclined toward the arrow 91 direction so that the sliding door 10 is automatically closed in the arrow 91 direction by its own weight. Other configurations and operations are similar to those of the first embodiment. The sliding door stopping device 8 and the forced closing device 3 may be provided on the driven pulley 46 side.

3. Third Embodiment Next, FIG. 19 shows a third embodiment of a sliding door having a forced closing device, a sliding door forced closing device and a method according to the present invention. In the first embodiment, the sliding door stop device 8 and the forced closing device 3 are provided on the driven pulley 6 side. On the other hand, in the present embodiment, the sliding door closer rotating unit 2
The sliding door stop device 8 and the forced closing device 3 are provided on the 07 side.

That is, the stopper arm 9 of the sliding door stopping device 8 is brought into contact with the timing belt 204 hung on the sliding door closer rotating portion 207 to stop the open position of the sliding door 10. Further, the stopper arm 9 is pressed and released by the forced closing device 3, and the sliding door 10 is forcedly closed. Other configurations and operations are similar to those of the first embodiment.

4. Other Embodiments In addition to the above embodiments, the sliding door stop device 8 and the forced closing device 3 may be provided on the door roller 202 or the door roller 203 (see FIG. 1). Further, a stopper arm 9 as a stopping arm, a tension spring 212 as a biasing portion, and a compression spring 213 as a pressing portion included in the sliding door stopping device 8.
The structure is not limited to the above structure, and any other structure may be used as long as it automatically closes the sliding door 10 or maintains the stopped state of the sliding door 10 in accordance with a natural opening / closing operation of the person opening / closing.

Further, the releasing shaft 2 as the releasing member and the solenoid 38 as the operating portion, which the forcible closing device 3 is provided with, are not limited to the above-mentioned structure, but the stopper arm 9 is used.
Pressing (stopping arm), driven pulley 6 (rotating part)
Other structures may be used as long as they can release the stopped state and forcibly close the sliding door 10. Further, in the above-described embodiment, the switch 22 is illustrated as the closing confirmation signal output unit, but the closing confirmation signal may be output based on the release shaft 2 (release member) being switched to the forced release position. However, other configurations can be adopted.

Although the reset wire 30 is exemplified as the return member, it can be operated from the outside.
Other configurations may be used as long as they can return the release shaft 2 (release member) from the forced release position to the normal position. Further, although the guide portion 17 is shown, another configuration is provided as long as it guides the reset wire 30 (returning member) to the outside of the sliding door 10 and changes the exposed position of the reset wire 30 from the sliding door 10. May be adopted.

[Brief description of drawings]

FIG. 1 is an overall schematic view showing a first embodiment of a sliding door, a stop device and a forced closing device according to the present invention.

FIG. 2 is a front view of the vicinity of the driven pulley, the stop device, and the forced closing device shown in FIG.

FIG. 3 is a front view of the vicinity of the driven pulley, the stop device and the forced closing device shown in FIG. 1, and is a partial sectional view.

FIG. 4 is a front view of the vicinity of the driven pulley, the stop device, and the forced closing device shown in FIG. 1, and is a partial cross-sectional view.

5 is a front view in the vicinity of the driven pulley, the stop device, and the forced closing device shown in FIG. 1, and is a partial sectional view.

FIG. 6 is a plan view of the vicinity of the driven pulley, the stopping device, and the forced closing device shown in FIG.

FIG. 7 is a left side view of the driven pulley, the stopping device, and the forced closing device shown in FIG.

8 is a cross-sectional view taken along line VIII-VIII shown in FIG.

9 is a sectional view taken along the line IX-IX in FIG.

10 is a sectional view taken along line XX of FIG.

11 is a plan view of the forced closure device shown in FIG. 1. FIG.

FIG. 12 is a front view showing a driven pulley and a stopping device shown in FIG. 1.

FIG. 13 is a left side view of the stop device and the forced closing device shown in FIG. 1, showing a state in which the forced closing device is attached to the stop device.

14 is a right side view of the driven pulley and the forced closing device shown in FIG. 1. FIG.

15A is a partial cross-sectional front view of the stopping device shown in FIG.
B is a partial cross-sectional plan view of the stop device shown in FIG. 1.

16 is a partial cross-sectional front view of the stop device shown in FIG.

17 is a diagram showing a circuit configuration of the switch shown in FIG.

FIG. 18 is an overall schematic view showing a second embodiment of a sliding door, a stop device and a forced closing device according to the present invention.

FIG. 19 is an overall schematic view showing a third embodiment of a sliding door, a stop device and a forced closing device according to the present invention.

FIG. 20 is a diagram showing a first conventional example, A is a diagram showing an entire sliding door provided on a wall surface, and B and C are enlarged diagrams showing a positional relationship between a door roller and a control gear body.

FIG. 21 is a front view showing a second conventional example.

[Explanation of symbols]

 2 ... Release shaft 3 ... Forced closing device 6 ... Driven pulley 8 ... Stopping device 9 ... Stopper arm 10 ... Sliding door 17・ ・ ・ ・ ・ Guide 22 ・ ・ ・ ・ ・ Switch 25 ・ ・ ・ Moveable member 30 ・ ・ ・ ・ ・ Reset wire 212 ・ ・ ・ ・ ・ Tension spring 213 ・ ・ ・ ・ ・ Compression spring L1 ・ ・ ・..Reference lines

Claims (6)

[Claims] 1. A sliding door that opens or closes along a rail provided on a wall surface, has a rotating portion that interlocks with the opening or closing operation, and automatically moves in the closing direction from the open position. A stop device for holding the stopped state of the sliding door under a predetermined condition, a forced closing device attached to the stop device for forcibly closing the sliding door held in the stopped state, Is a sliding door having a forced closing device provided with, wherein the stopping device is a stopping arm arranged on a reference line passing through the center of the rotating portion and one point on the outer peripheral surface, and the one end of the center is A stop arm that reciprocates on the reference line and reciprocates in both directions sandwiching the reference line while the movable other end is in contact with the outer peripheral surface of the rotating part. Energizing part to energize If the stop arm is pressed against the outer peripheral surface of the rotating part, the movable other end of the stop arm is located on the reference line, and the rotation of the rotating part is stopped for a predetermined time, the rotating part is pressed by the pressing force. The forced closing device is a release member that can be switched to a forced release position or a normal position, and when the forced release position is switched to the forced release position, the rotation unit is stopped. The stopping arm that holds the state is pressed to release the stopped state of the rotating part, and the releasing member is positioned so as not to contact the stopping arm when in the normal position, and is connected to the releasing member. And an operating portion for switching the release member to a forced release position or a normal position, a sliding door having a forced closing device. 2. A sliding door having a forced closing device according to claim 1, further comprising: a closing confirmation signal output unit that outputs a closing confirmation signal based on the release member being switched to the forced releasing position. A sliding door having a forced closing device. 3. A sliding door having a forced closing device according to claim 1, further comprising a returning member for returning the releasing member in the forced releasing position to a normal position, the returning member being operated from the outside. A sliding door having a forced closing device, characterized in that it is exposed to the outside of the sliding door as much as possible. 4. A sliding door having a forced closing device according to claim 3, wherein the sliding member includes a movable guide portion, and the return member is guided to the guide portion and exposed to the outside of the sliding door. A sliding door having a forced closing device characterized in that the exposed position of the return member from the sliding door can be changed by moving the guide portion. 5. A release member which can be switched to a forced release position or a normal position, and when the forced release position is switched, the rotating portion is pressed by pressing an interlocking rotating portion according to an opening operation or a closing operation of a sliding door. The stopping arm that holds the stopped state of the section is released to release the stopped state of the rotating section, and the releasing member and the releasing member are positioned so as not to contact the stopping arm when in the normal position. A forced closing device for a sliding door, comprising: an operating portion that is connected and that switches the releasing member to a forced releasing position or a normal position. 6. When the sliding door is opened or closed along a rail provided on the wall surface, the rotating portion is interlockingly rotated according to the opening operation or the closing operation, and the rotation of the rotating portion is stopped for a predetermined time. On the condition that the stopping arm presses the rotating part, the rotating part holds the stopped state, and the releasing member holds the rotating part in the stopped state during the forced closing. The sliding door is forcibly closed by pressurizing the rotating part to release the stopped state and forcibly closing the sliding door.