JPH0718939A - Automatic operation switch over device for rotary member - Google Patents

Abstract

PURPOSE:To control how to open a heavy sliding door mounted to an entrance of a hospital, an office, a library, a housing for the ages, and a warehouse or the like, or a movable body such a heavy door mounted to an underfloor housing chamber, and allow a wheelchair and a luggage to come in and out more smoothly and change over opening control of a movable body automatically in emergency, such as fire. CONSTITUTION:A rotary member is rotatively pivoted to a movable body while a two-way engagement clutch mechanism-built-in control gear body 9 is rotatively installed, thereby engaging the control gear body with a gear 8 formed in an outer wheel unit of the rotary member. The two-way engagement clutch mechanism halts temporarily the movable body which moves by the rotation of the rotary member at an arbitrary position and prevents the movement in the reverse direction within a specified torque while a switch over mechanism, which operates with an electric signal and releases the engagement between the control gear body and the rotary member, is installed to the movable body, thereby controlling the rotary member so that it may be kept in a free state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the opening and closing of movable bodies such as heavy sliding doors installed at entrances and exits of hospitals, offices, libraries, housing for the elderly, warehouses, etc., or heavy doors installed in underfloor storage rooms, etc. A device capable of smoothly controlling the movement of people, wheelchairs, carrying in and out of luggage, etc., and automatically switching the opening / closing operation control of movable bodies in an emergency such as a fire to prevent disasters Is.

[0002]

2. Description of the Related Art Movable movable bodies, for example, sliding doors used for entrances and exits of general houses, offices, warehouses, etc. Is a structure that can operate smoothly. However, for example, due to the rail being slightly inclined, the door roller may naturally rotate and move in the closing direction or the opening direction during the opening / closing operation of the sliding door.
In order to solve this, the applicant of the present invention has previously disclosed Japanese Patent Laid-Open No. 4-17
As disclosed in Japanese Patent No. 693, a sliding door has been developed in which a bidirectional locking clutch mechanism capable of temporarily stopping the sliding door at an arbitrary position in the middle of opening / closing operation and preventing movement in the reverse direction within a predetermined torque is incorporated in a door roller. , Was able to achieve the desired effect.

[0003]

However, in the event of an emergency such as a fire, it is necessary to prevent smoke from blowing out and the fire from spreading, so the doorway should be closed with a sliding door. It is necessary to allow the sliding doors to open freely when a firefighter, etc. is going in and out for activities.However, in the above-mentioned prior art, the sliding doors remain open or closed even in an emergency such as a fire. Since it cannot be opened and closed freely by stopping in the state where
When the vehicle is stopped in the open state, smoke is likely to be emitted, which may spread the spread of fire and cannot prevent it. Further, if the vehicle is stopped in a closed state, it may interfere with the access of evacuees, firefighters, etc., and may cause a disaster or accident. Therefore, the present invention has been made in view of the problems of the above-mentioned conventional technology and prior art
The solution was to solve this problem.In normal times, the movable body is temporarily stopped at an arbitrary open / close position to prevent movement in the opposite direction within a predetermined torque, allowing people and goods to enter and leave smoothly. In an emergency such as a fire, it is an object of the present invention to provide a rotary member operation automatic switching device capable of manually switching the movement of a movable body such as a heavy sliding door or door. .

[0004]

As a means for solving the above problems, the present invention rotatably pivotally mounts a rotating member on a movable body and enables rotation of a control gear body incorporating a bidirectional locking clutch mechanism. The control gear body is meshed with the gear formed on the outer ring portion of the rotary member, and the bidirectional locking clutch mechanism in the control gear body temporarily stops the movable body movable by the rotation of the rotary member at an arbitrary position. In addition, it is possible to prevent movement in the reverse direction within a predetermined torque, and to provide a switching mechanism on the movable body that operates by an electric signal to release the meshing between the control gear body and the rotating member, and controls the rotating member to the free state. It's something I got to get.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention shown in the drawings will be described in detail below. 1 to 8 show a first embodiment of the present invention implemented in a large and heavy sliding door that opens and closes an entrance / exit. A sliding door 1 formed of a large and heavy movable body is mounted on a rail C which is installed on the upper wall portion B of the doorway A by a door roller 3 attached thereto so as to be gradually inclined toward the closing direction. It is rotatably suspended and can be opened and closed. The main shaft 4 of the door roller 3 is fixed to a mounting bracket 2 attached to the upper frame of the sliding door 1, and an outer ring member 6 is rotatably attached to the main shaft 4 via a ball bearing bearing 5, and the rail C is connected to the rail C. A rail engaging groove 7 that engages with is formed, and gear portions 8 are formed on both sides of the rail engaging groove 7. In the control gear body 9, a bidirectional locking clutch mechanism 12 is incorporated between the support shaft 10 and the outer ring gear part 11, and the outer ring gear part 11 is rotatably controlled.
The support shaft 10 of the outer ring gear portion 11 is fixed to a mounting piece 23a formed by bending the upper portion of a rotating plate 23 as a mounting member so as to mesh with the gear portion 8 of the door roller 3. The rotating plate 23 is
A lower end of the control gear body 9 is rotatably pivotally attached to the mounting bracket 2 of the sliding door 1 by a pin 26, and an electromagnet 24 as a switching mechanism is mounted below the control gear body 9 mounted on the mounting piece 23a. The electromagnet 24 is fitted with a stopper 25 which is constantly urged in a protruding state, and the tip of the stopper 25 penetrates a small hole 23b formed in the rotating plate 23 and a locking hole 2a formed in the mounting member 2. The stopper 25 is operated so that the stopper 25 can be disengaged from the locking hole 2a due to the magnetism of the electromagnet 24. Further, the pivot plate 23 has a pivot point by the pin 26 at the lower end thereof which is closer to the door roller 3 than the center of gravity of the control gear body 9 mounted on the mounting piece 23a, so that the gravitational force of the control gear body 9 in FIG. The control gear body 9 is rotated as shown by the arrow.
The outer ring gear portion 11 and the gear portion 8 of the door roller 3 are attached so as to be disengaged from each other. Bidirectional locking clutch mechanism 12
Is basically the same mechanism as the bidirectional locking clutch disclosed in Japanese Patent Laid-Open No. 4-13693 of the above-mentioned prior art, but this will be described in more detail. As shown in FIGS. 6 to 8, the bidirectional locking clutch mechanism 12 includes a control plate 14, a rotation plate, a control plate 14, a rotation shaft, and a rotation shaft 10 as a center in an inner cylindrical body 13 non-rotatably fitted to an outer ring gear portion 11. A member made up of the dynamic holding member 15, the receiving ring 16, the roller pin 17, and the elastic wire 18 is incorporated. The outer ring gear portion 11 is formed in a tubular shape having a wall surface 11a on one side and an opening 11b on the other side. The spindle 1 is inserted into the through hole 11c formed in the wall surface 11a.
0 is inserted, and the spindle 10 is inserted into the bearing ring 21 fitted in the fitting recess 11d formed on the outer peripheral surface thereof. The inner tubular body 13 is formed in a tubular shape having a wall surface 13a on one side and an opening 13b on the other side. A through hole 13c for inserting the support shaft 10 is formed in the wall surface 13a, and a bearing ring 21 fitted to the support shaft 10 is inserted into the inner cylindrical body 1 via a washer 22.
3 is non-rotatably fitted in the outer ring gear portion 11. Control board 1
4 is formed in a substantially annular shape in which a through hole 14a for inserting the support shaft 10 is formed, and a predetermined position on the inner peripheral surface of the through hole 14a,
In this embodiment, concave grooves 14b are cut out at three places.
The recessed groove 14b has the shallowest portion 14c at the center and the retreat groove portions 14d and 14d are formed in a substantially shape such that both sides thereof are deep. The outer peripheral portion is also made of a thin plate material in which a substantially circular arc-shaped floating notch 14e is formed toward the concave groove 14b. On both sides, they are non-rotatably fitted in the inner cylindrical body 13 so as to sandwich them. Swivel holder 15
Is formed with a through hole 15a through which the support shaft 10 is inserted in the central portion thereof. A holding groove 15b for supporting the pin is formed, and a wire rod fitting groove 15c for inserting the elastic wire rod 18 is cut out at a position corresponding to the holding groove 45b on the outer peripheral portion. Receiving ring 16
Is fitted to the rotation holding body 15 and is rotatably fitted in the inner cylindrical body 13 integrally with the rotation holding body 15. The roller pin 17 is inserted over the outer peripheral surface of the support shaft 10, the concave groove 14 b of the control plate 14, and the space portion formed in the holding groove 15 b of the rotary holding body 15. The elastic wire rod 18 includes the floating notch portion 14 e of the control plate 14 and the wire rod fitting groove 1 of the rotation holding body 15.
5c, one end of which is the wall surface 13a of the inner cylindrical body 13.
Inserted and locked in a small hole 13d formed in the inner cylindrical body 1
3 is inserted and locked in a small hole 19b formed in a holding plate 19 tightly fitted in the opening 13b of the third non-rotatable member. And the holding plate 1
9, the bearing ring 21 is fitted through the washer 22 into the through hole 19a of the bearing 9, and the bearing ring 21 is fitted into the fitting recess 20b of the bearing cover plate 20. The shaft 10 is inserted into the through hole 20a formed in the bearing cover plate 20, and the bearing cover plate 20 is tightly fitted in the opening 11b of the outer ring gear portion 11 to assemble the bidirectional locking clutch mechanism 12.

With this structure, the stopper 25 fitted in the electromagnet 24 is normally set in the locking hole 2a of the mounting member 2 and the bidirectional locking clutch mechanism 12 is incorporated in the control gear. The body 9 has an outer ring gear portion 11 thereof.
Since the gear part 8 of the door roller 3 is in the meshed state, when the sliding door 1 is moved in the opening direction, the door roller 3 attached to this has the rail engaging groove 7 of the outer ring body 6 on the rail C as shown in FIG. Since it rotates in the counterclockwise direction, the main shaft 4 of the door roller 3 receives the entire weight of the sliding door 1 via the ball bearing 5 and operates robustly and smoothly, so that the sliding door 1 can travel lightly. At the same time, since the gear portion 8 of the outer ring body 6 of the door roller 3 meshes with the control gear body 9, the control gear body 9 is
Is rotated clockwise as shown in FIG. As a result, the bidirectional locking clutch mechanism 12 incorporated in the outer ring gear portion 11 operates, and accordingly, as shown in FIG.
Since the control plate 14 in 3 is rotated clockwise, the roller pin 17 positioned in the central shallowest portion 14c of the groove 14b formed in the control plate 14 is retracted on the left side as shown in FIG. While moving to the groove 14d, at that time, the elastic wire 18 is curved in an anticlockwise bow shape against the elasticity by the rotation of the control gear body 9. The center portion of the elastic wire rod 18 is inserted and held in the wire rod fitting groove 15c of the rotary holding body 15, while the inner cylinder body 13 and the holding plate 19 which hold both ends are controlled by the control gear. Since the body 9 is curved in an arcuate shape against its elasticity due to the clockwise rotation, the roller pin 17 is controlled in a state where the clockwise holding force is always applied to the rotation holding body 15. As long as the gear body 9 continues to rotate in the clockwise direction, it moves to the retreat groove portion 14d on the left side and keeps the free state.
In the non-locked state, the periphery of the support shaft 10 can be freely rotated together with the outer ring gear portion 11, and the sliding door 1 can be moved easily in the opening direction. And sliding door 1
When the rail C is completely opened or the opening operation is stopped midway, the rail C is inclined in the closing direction, so that the sliding door 1 is given a predetermined torque in the closing direction, and the door roller 3 reverses to the above. Since it tries to rotate in a clockwise direction, the control gear body 9 interlocked with this acts on the control gear body 9 in a counterclockwise direction, and the outer ring gear unit 1
As the bidirectional locking clutch mechanism 12 incorporated in 1 operates, the control plate 14 in the inner cylindrical body 13 rotates in the clockwise direction accordingly, so that the concave groove 1 of the control plate 14 as shown in FIG.
The roller pin 17 positioned in the free groove 14d on the left side of the groove 4b is located at the center shallowest portion 14c of the groove 14b.
6A and 6B, the rotation holding member 15 is also rotated clockwise by the elastic restoring force of the elastic wire member 18 which is curved in an arc shape, and is pushed back to the central shallowest portion 14c. As shown in the figure, the control gear body 9 is stopped and the rotation of the door roller 3 meshing with the control gear body 9 is stopped. As a result, the sliding door 1 does not return in the closing direction and is in an open state at the fully open position or an arbitrary stop position, and the sliding door 1 is easily closed even if an unexpected external force such as vibration is applied. There is no such thing. Further, from this state, when a torque greater than a predetermined value is applied in the closing direction, the control gear body 9 rotates counterclockwise via the door roller 3 and the bidirectional locking clutch mechanism 12 operates, and accordingly the inner cylinder body follows. Since the control plate 14 in the control plate 13 rotates counterclockwise, as shown in FIG.
The roller pin 17, which is pushed back to the central shallowest portion 14c and is in the locked state, moves to the retreat groove portion 14d on the right side to maintain the free state, whereby the two-way locking clutch 1
2 is unlocked from the support shaft 10,
Can be freely rotated around the outer ring gear portion 11 and the sliding door 1 can be traveled in the closing direction lightly.
After closing, the bidirectional locking clutch mechanism 12
On the contrary, contrary to the above, if a slight torque is applied in the opening direction, the roller pin 17 will be locked at the central shallowest portion 14c of 14b, so that a stopping force will be exerted. Therefore, even if an unexpected external force such as vibration is applied in the opening direction, the sliding door 1 will not be easily opened. When the sliding door is opened against this stopping force, the roller pin 17 should have a torque sufficient to release the stopping force.
Needless to say, the position can be moved to the position of the retreat groove portion 14d and the opening operation can be performed again.

When an emergency such as a fire occurs during such normal use, the sensor detects the alarm and the alarm device is activated, and the electromagnet 24 is demagnetized and the stopper 25 is attracted to the mounting bracket 2. Since the control gear body 9 is disengaged from the locking hole 2a, the gravity of the control gear body 9 causes the pin 26 to serve as a fulcrum for the rotating plate 2.
3 rotates counterclockwise as shown in FIG. 5, the outer ring gear portion 11 of the control gear body 9 and the gear portion 8 of the door roller 3 are disengaged,
The door roller 3 is in a state in which it can rotate freely. With this, the door roller 3 rotates on the slanted rail C, easily moves the sliding door 1 in the closing direction, completely closes the doorway A, smoke is blown, and the spread of fire is surely prevented. You can In addition, since the door roller 3 can freely rotate, the sliding door can be freely and lightly opened so that evacuees and fire fighters for fire fighting can easily enter and leave.

9 to 11 show a second embodiment implemented on a heavy door attached to the underfloor storage section. The door 30 made of a heavy movable body has a main shaft 3 on each side wall 30a.
1 is fixed by welding. The main shaft 31, which is a rotating member, is rotatably attached to mounting plates 33 and 34, which are fixed to both sides of a frame 32 attached to the upper end opening of the underfloor storage chamber D, to open and close the underfloor storage chamber D. A gear 31a is integrally fixed to the main shaft 31 pivotally attached to at least one mounting plate 33. In the control gear body 35, the bidirectional locking clutch mechanism 38 is incorporated between the support shaft 36 and the outer ring gear part 37, and the outer ring gear part 37.
Is rotatably controlled, and the support shaft 36 is fixed to the rotating plate 39. The lower end of the rotating plate 39 is pivotally attached to the mounting plate 33 of the underfloor storage chamber D by a pin 40, and
An electromagnet 41, which is a switching mechanism, is attached below the control gear body 35 attached to the upper part. The electromagnet 41 is fitted with a stopper 42 which is constantly urged in a protruding state, and the tip of the stopper 42 penetrates a small hole 39a formed in the rotating plate 39 and a locking hole 33a formed in the mounting plate 33. And the stopper 42 is locked by the dynamic magnetism of the electromagnet 41.
It operates so that it can be separated from a. The rotating plate 39 is
The pivot point of the pin 40 at the lower end is located closer to the main shaft 31 than the center of gravity of the control gear body 35 mounted on the rotating plate 39, so that the gravity of the control gear body 35 causes the rotation as shown by the arrow in FIG. The outer ring gear portion 37 of the control gear body 35
And the gear 31a of the main shaft 31 are disengaged from each other. The bidirectional locking clutch mechanism 38 is similar to that of the first embodiment.

With this structure, in order to open the underfloor storage room D, when the door 30 is rotated in the opening direction around the main shaft 31, the main shaft 31 receives the entire weight of the door 30 and is robust. It operates smoothly, the door 30 can be rotated smoothly, and the gear 31a integral with the main shaft 31 meshes with the outer ring gear portion 37 of the control gear body 35.
The two-way locking clutch mechanism 38 incorporated between the door 30 and the door operates in the same manner as in the first embodiment, and the door 30 is freed.
Can be freely rotated in the opening direction and the door 3
0 can be rotated to the fully open position. However, if the operation in the opening direction is stopped midway, the bidirectional locking clutch mechanism 38 enters the locked state and is locked when it receives the rotational force in the reverse direction, so that the heavy weight of the door 30 opens the underfloor storage chamber D. The rotational force for closing the gear is transmitted from the gear 31a to the outer ring gear portion 37 of the control gear body 35 and acts on the bidirectional locking clutch mechanism 38. However, since the bidirectional locking clutch mechanism 38 is in the locked state, the reverse return direction. The rotational force of is blocked. As a result, the heavy door 30 does not close the opening of the underfloor storage chamber D by its own weight, and the door 30 does not easily close even when an open state is maintained and an unexpected external force such as vibration is applied. Therefore, the articles and the like in the underfloor storage room D can be put in and out with peace of mind. Furthermore, from this state, if a torque greater than a predetermined value is applied to the door 30 in the closing direction, the door 30
Applies a rotational force from the gear 31a of the main shaft 31 to the outer ring gear portion 37 of the control gear body 35 meshing with the gear 31a, and sets the bidirectional locking clutch mechanism 38 incorporated between the main shaft 31 and the support shaft 36 into a free state. . As a result, the door 30 can freely rotate in the closing direction, so that the door 30 can be installed in the underfloor storage chamber D.
Completely close the opening of the. After closing, the bidirectional locking clutch mechanism 38, even when a slight torque is applied in the opening direction contrary to the above, acts as a stopping force even if an unexpected external force such as vibration is applied in the opening direction. The door 30 does not open easily. Needless to say, when the door 30 is opened against the stopping force, it can be operated again in the opening direction by applying a torque to release the stopping force.

When an emergency such as a fire occurs during such normal use, the sensor detects the alarm and the alarm device is activated, and the electromagnet 41 is magnetized and the stopper 42 is attracted to the mounting plate 33. Since it is disengaged from the locking hole 33a,
Due to the gravity of the control gear body 35, the rotating plate 39 rotates about the pin 40 as a fulcrum as shown in FIG. 11, and the outer ring gear portion 37 of the control gear body 35 and the gear 31a of the main shaft 31 are disengaged from each other.
The main shaft 31 becomes free to rotate. As a result, the main shaft 31 becomes free and easily rotates in the closing direction due to its own weight to completely close the opening of the underfloor storage chamber D and reliably prevent fire from entering the underfloor storage chamber D. In addition, since the main shaft 31 can freely rotate, the door 30 can be freely and lightly opened to easily take out valuables from the underfloor storage chamber D.

Although the electromagnet is used as the switching mechanism in the above embodiment, the invention is not limited to this, and any mechanism capable of switching the rotating plate so that it can be engaged and disengaged may be used. Further, the rotating plate is not limited to the one in which the control gear body can rotate by its gravity, but a spring or the like may be attached to forcefully rotate. Further, the control device is not limited to the above-mentioned embodiment, and may be attached to various rotating members such as attached to the upper rotary shaft portion of the swing door.

[0011]

As described above in detail for the embodiments,
The present invention meshes a rotating function of a rotating member with a control gear body incorporating a bidirectional locking clutch mechanism having a function of controlling the rotating operation of the rotating member, and meshes with a switching mechanism operated by an electric signal, Since it is separable, the rotating member can be freely moved to any position during normal use, and there is no risk of accidents caused by being caught in the rotating member when people enter or leave or carry in / out luggage, and there is no fire. When an emergency situation such as occurs, the sensor senses the electromagnet and the engagement between the control gear body and the rotating member is released, the main shaft of the rotating member becomes free, and the rotating member is easily closed. It can move in any direction to completely close the opening, smoke is blown out, and the spread of fire can be reliably prevented. Moreover, since the main shaft can be freely rotated, the rotating member can be opened freely and easily, which is excellent for evacuees and firefighters for fire extinguishing to easily enter and exit. It is possible to provide an automatic operation switching device for rotating members that produces an effect.

[Brief description of drawings]

FIG. 1 is a front view showing a state in which a control device is attached to a sliding door according to a first embodiment of the present invention.

FIG. 2 is a rear perspective view of the control device of the present invention.

FIG. 3 is a side view in which a part of the control device is also cut away.

FIG. 4 is a rear view in which a part of the control device is also cut away.

[Fig. 5] Similarly, a rear view in which a part of the control device in an emergency can be cut away.

FIG. 6 is a vertical sectional rear view of a control gear body that also incorporates a bidirectional locking clutch mechanism.

FIG. 7 is a partially longitudinal rear view of the bidirectional locking clutch mechanism during operation.

FIG. 8 is an exploded perspective view of the bidirectional locking crunch mechanism.

FIG. 9 is a vertical sectional front view showing a state in which a control device is attached to an underfloor storage chamber according to the second embodiment of the present invention.

FIG. 10 is a vertical side view of the same.

FIG. 11 is a vertical sectional front view of the control device in an emergency.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sliding door 2 Mounting bracket 2a Locking hole 3 Door wheel 4 Main shaft 5 Ball bearing bearing 6 Outer ring body 7 Rail engaging groove 8 Gear part 9 Control gear body 10 Support shaft 11 Outer ring gear part 12 Bidirectional locking clutch mechanism 23 Rotating plate 23a Mounting piece 23b Small hole 24 Electromagnet 25 Stopper 26 Pin

Claims (1)

[Claims] 1. A rotating member is rotatably attached to a movable body, and a control gear body incorporating a bidirectional locking clutch mechanism is rotatably provided and formed on the control gear body and the outer ring portion of the rotating member. With the bidirectional locking clutch mechanism in the control gear body, the movable body movable by the rotation of the rotating member can be temporarily stopped at an arbitrary position to prevent the reverse movement within a predetermined torque. The automatic switching of the operation of the rotating member is characterized in that the movable member is provided with a switching mechanism which is operated by an electric signal to release the meshing between the control gear body and the rotating member, so that the rotating member can be controlled in a free state. apparatus.