JP5114282B2 - Switchgear - Google Patents

Description

  The present invention relates to an opening / closing device for vertically partitioning a space portion of a structure such as a shutter device including an overhead door, a roll screen, a blind, an awning device, a gate, and the like, and is automatically closed by an emergency closing signal particularly in a disaster. The present invention relates to a switching device.

Conventionally, in this kind of invention, as described in Patent Document 1, for example, in order to prevent the spread of smoke and flames at the time of disaster, the opening / closing body (shutter curtain 4) is caused by its own weight in response to an emergency closing signal. There is an opening and closing device designed to close automatically.
In this switchgear, the automatic closing can be disabled by operating the recovery button (81) as necessary for emergency escape, fire fighting work, etc. In order to prevent the preferred control depending on the situation from being hindered, for example, 81) is pushed by mischief or erroneous operation and the opening / closing body is left open in an emergency, the recovery button (81) is The switch box (housing 71) has a lid (72) with a key (73). According to this configuration, the operation on the recovery button (81) can be permitted only to a specific person possessing the key for the key (73) such as a building manager.

However, according to the prior art, only a very small part of the person holding the key can operate the recovery button (81), so that a person who tries to invalidate the automatic closing of the opening / closing body without malicious intention (for example, a firefighter worker) However, the person had to borrow the key from the administrator or the like.
Further, even if the person owns the key, since the key (73) is unlocked and the lid (72) is opened and then the recovery button (81) is pressed, the recovery operation may take time. there were.
JP 2007-138393 A

  The present invention has been made in view of the above-described conventional circumstances, and a problem to be solved by the present invention is to provide an opening / closing device that can limit the person who performs the recovery operation to some extent and can perform the recovery operation promptly. .

The technical means for solving the above-described problems are an opening / closing body that is drawn out from the storage unit and can be closed by its own weight, and when the emergency closing signal is received, the opening / closing body is released so as to be closed and a restoration signal is received. In the opening / closing apparatus comprising: a release restraining means that restrains in a non-closeable manner; and an operation part that is operated to transmit the restoration signal to the release restraining means, the operation part is a separate operation member. A rotation operation body that can be rotated by the rotation operation body, and configured to sense the rotational motion of the rotation operation body and output the restoration signal, and the rotation operation body includes the operation member at a rotation center portion thereof. The fitting portion that can be fitted is disposed in an exposed state.
According to this configuration, when a separate operation member is fitted to the rotation operation body and the rotation operation body is rotated by the operation member, a recovery signal is generated in response to the rotational motion of the rotation operation body being detected. Is output. With this restoration signal, the release restraining means restrains the opening / closing body so that it cannot be closed.

In a further means, the operation member is a hexagon wrench.
According to this structure, the person who operates an operation part can be limited suitably. That is, normally, the number of persons who possess a hexagon wrench is less than the number of persons who possess a driver, so that the number of persons who operate the operation unit can be limited to some extent. In addition, the operator can be specified more widely than when the operation member is a dedicated key.

Further means comprises a battery as a power source for operating the release restraining means, and battery test means for judging whether or not the battery has a voltage abnormality when a battery test signal is received, and the operation unit Is configured to detect a rotational motion in one direction of the rotary operation body and output the restoration signal, and to detect a rotational motion of the rotational operation body in the reverse direction and output the battery test signal. It is characterized by.
According to this configuration, a recovery operation and a battery test operation can be performed by an operation on the same rotary operation body.

In a further means, a recovery signal output unit that is engaged with the rotation operation body when rotating in one direction and outputs the recovery signal, and a rotation operation body when rotating in the opposite direction are engaged. And a battery test signal output unit for outputting the battery test signal.
According to this configuration, the configuration for outputting the recovery signal and the battery test signal can be a specific aspect with good productivity.

Further means is characterized in that a first urging member is provided for maintaining the rotary operation body in a neutral position so as not to output the restoration signal and the battery test signal.
According to this configuration, it is possible to prevent a recovery signal or a battery test signal from being output due to malfunction or the like.

In a further means, the operation section is provided with a light emitter so as to light up or blink in accordance with the output of the restoration signal or the battery test signal.
According to this configuration, it is possible to visually confirm that the restoration signal or the battery test signal is output by turning on or blinking the light emitter.

According to a further aspect, the operation unit includes an emergency closing button that is retracted by a pressing operation, and an emergency closing signal output unit that is pressed by the emergency closing button and outputs the emergency closing signal. Is provided to maintain the retracted state even after the emergency closing signal is output.
According to this configuration, it is possible to visually confirm that the emergency closing signal has been output by maintaining the emergency closing button in the retracted state.

In a further means, a second urging member for urging the emergency closing button in the forward direction, an engagement / disengagement member supported to be engaged / disengaged by a rotational motion with respect to the emergency closure button in the retracted state, A third urging member for urging the engaging / disengaging member in the engaging rotation direction, and when the emergency closing button is retracted, the engaging / disengaging member is rotated by the urging force of the third urging member. The emergency closing button is engaged with the retracted state, the retracted state of the emergency closing button is maintained, and when the rotary operation body is rotated to output the recovery signal, the engagement / disengagement member is It is pushed by the rotary operation body and rotates in the reverse direction so as to be detached from the emergency closing button, and the emergency closing button is advanced to the original position by the biasing force of the second biasing member. And
According to this configuration, a specific structure for maintaining the emergency closing button in the retracted state can be obtained, and the emergency closing button can be returned to the original position by operating the rotary operation body for outputting the recovery signal. it can.

In a further means, the operation section is provided on a guide rail that guides the widthwise end of the opening / closing body downward.
According to this structure, it is not necessary to provide an operation part in parts other than the said switchgear (for example, a housing wall surface etc.), and the workability of the said switchgear can be made favorable.

Further means is characterized in that the operation portion is provided on a surface of the guide rail into which the width direction end portion of the opening / closing body is inserted.
According to this configuration, for example, even when the guide rail is partially embedded in the housing wall surface, the operation unit is disposed on the exposed portion of the guide rail.

  In the opening / closing apparatus according to the present invention, the opening / closing body is wound around the winding shaft and stored, or the opening / closing body is stored in the opening direction side without being wound around the winding shaft. Including embodiments.

In the present specification, the “opening / closing body thickness direction” means the thickness direction of the opening / closing body in the closed state.
In the present specification, the “opening / closing body width direction” means a direction that is substantially orthogonal to the opening / closing direction of the opening / closing body and not the thickness direction of the opening / closing body.
Further, in this specification, the “opening / closing body opening / closing direction” means a direction in which the opening / closing body slides to partition or open the space.

Since the present invention is configured as described above, the following effects can be obtained.
By appropriately selecting a separate operation member, the number of persons performing the recovery operation can be limited to some extent, and the fitting portion to which the operation member can be fitted is exposed, so that the recovery operation can be performed quickly.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The present embodiment is arranged in or inside an opening part or inside of a housing such as a house, building, warehouse, factory, underground shopping center, tunnel, vehicle loading platform, etc. As an especially preferred embodiment, an example applied to a fire-proof shutter device that is automatically closed in the event of an emergency such as a fire to prevent the spread of flames and smoke will be described.

  The opening / closing apparatus 1 includes an opening / closing body 10 that is drawn out from a storage unit 31 and can be closed by its own weight, and a guide rail 20 that surrounds and guides the end of the opening / closing body 10 in the width direction (left-right direction in FIG. 1). And a winding device 30 for winding and unwinding the opening / closing body 10, and when the emergency closing signal is input, the opening / closing body 10 is closed by its own weight, and the closing operation is detected by an obstacle. If the operation unit 70 is operated, the operation is stopped.

  The opening / closing body 10 constitutes the opening / closing body main body 11 by connecting a plurality of so-called slats 11a formed by bending a horizontally-long substantially rectangular metal plate so as to rotate between the vertically adjacent slats 11a, 11a. And the movable seat board 12 is connected to the closing direction end part side (lower end side according to the illustrated example) of the opening / closing body main body 11.

  The movable seat plate 12 is a member that extends over substantially the entire length in the opening / closing body width direction, and is connected to the lower end of the opening / closing body main body 11 so as to protrude in the opening / closing body closing direction. The movable seat plate 12 is engaged with the lower end portion of the opening / closing body main body 11 so as to freely move by a predetermined amount in the opening / closing body opening / closing direction (vertical direction in FIG. 1) relative to the opening / closing body main body 11. Yes.

Further, at the lower end of the opening / closing body 10, an obstacle sensing unit 10a is configured by the movable seat plate 12 and a sensing unit (not shown). The obstacle sensing unit 10a senses the upward movement of the movable seat plate 12 relative to the opening / closing body 11 by the sensing unit, and sends the sensing signal to the obstacle sensing device control panel 82 of the control circuit 80 described later. Send.
The sensing unit may have a structure that senses contact or non-contact that the movable seat 12 has moved upward and transmits a sensing signal thereof. For example, a contact type switch such as a limit switch or a micro switch, A non-contact switch such as a switch may be used.

The guide rail 20 is a member having a substantially U-shaped cross section that surrounds an end of the opening / closing body 10 in the width direction, and a contact target portion p (for example, a floor surface, the ground, or a frame member) seated by the opening / closing body 10. Etc.) and the winding device 30.
The guide rail 20 is provided with an operation unit 70 to be described later on the surface into which the end of the opening / closing body 10 in the width direction is inserted.

The take-up device 30 also rotates the take-up shaft 32 that winds and unwinds the opening / closing body 10 in the storage portion 31, and drives and rotates the take-up shaft 32 via power transmission means 33 such as a chain and a sprocket. Switch 40 that controls or brakes, switch control panel 81 for controlling the switch 40, and obstacle detection device control that transmits a control signal from the obstacle sensing unit 10a to the switch control panel 81 A panel 82 and the like are provided.
The switch control panel 81 and the obstacle sensing device control panel 82 constitute a control circuit 80 (FIG. 9) for controlling the switch 1. These switch control panel 81 and obstacle sensing device control panel 82 may be arranged outside the storage unit 31.

  The storage portion 31 has a substantially box shape in which an opening for allowing the opening / closing body 10 to appear and retract is formed on the lower side, and an edge portion of the opening is an end portion in the closing direction of the opening / closing body 10 when the opening is fully opened (specifically, It is a lintel (not shown) for abutting the opening / closing body thickness direction of the seat plate member 12. The storage portion 31 may have a structure in which the internal structure is exposed.

  The switch 40 is a switch having a well-known structure disclosed in, for example, Japanese Utility Model Laid-Open No. 01-118084. More specifically, as shown in FIG. 8, a drive source 41 for rotating the winding shaft 32 is provided. A brake mechanism 42 (brake device) that brakes rotation by the drive source 41 on one end side (right end side in the illustrated example) of the drive source 41 is provided in the casing 43.

The drive source 41 is a direct current motor or an alternating current motor. A drive shaft 41b is fixed to the center of the rotor 41a, and the rotational force on one end side (the left end side in FIG. 8) of the drive shaft 41b is used as power. It is configured to transmit to the winding shaft 32 via the transmission means 33 (see FIG. 1). A substantially disc-shaped brake shoe 41c is fixed to the other end side of the drive shaft 41b so as to receive a braking force from the brake mechanism 42.
Therefore, when the drive shaft 41b rotates in one direction or in the opposite direction, the rotational force is transmitted to the take-up shaft 32 by the power transmission means 33, and the opening / closing body 10 opens or closes. The opening / closing operation of the opening / closing body 10 is stopped when the drive shaft 41 b receives a braking force from the brake mechanism 42. That is, the rotation of the drive shaft 41b and the opening / closing operation of the opening / closing body 10 are linked.

  The brake mechanism 42 is fixed to the drive source 41 side of the brake shaft 42a so as to be arranged substantially linearly with respect to the drive shaft 41b, and is detachably contacted with the brake shoe 41c. The brake drum 42b, the coil spring 42c that urges the brake drum 42b in the direction of the drive source 41 (leftward according to FIG. 8), and the brake drum 42b against the urging force of the coil spring 42c. An electromagnetic solenoid 42d and a lever member 42e for manually separating the brake drum 42b from the brake shoe 41c against the urging force of the coil spring 42c are provided.

The lever member 42e is a substantially bowl-shaped member configured to separate the brake shaft 42a and the brake drum 42b from the brake shoe 41c by a swinging force acting on one end side.
According to the illustrated example, an operation lever 42e1 is provided on the upper end side of the lever member 42e so as to be exposed to the outside of the casing 43, and the operation lever 42e1 is mechanically operated by an automatic closing device 50 described later. It has become.
Incidentally, reference numeral 42 g is a chain which is provided so as to be able to open and close the closing member 10 manually, it is possible to omit as required.

The automatic closing device 50 is configured to project the pressing operation member 51 by the rotational force of the motor when power is supplied.
The pressing operation member 51 is disposed so as to press the operation lever 42e1 of the brake mechanism 42 at its protruding end.
The automatic closing device 50 has a spring (not shown) when the power is cut off or when an automatic closing stop signal (for example, no-voltage a contact) is input from an obstacle sensing device control panel 82 described later. The pressing operation member 51 is configured to be immersed by an urging force.

Further, as shown in the block diagram of FIG. 9, the control circuit 80 mainly includes an opening / closing control panel 81 for controlling the opening / closing device 40, and an obstacle sensing device control panel 82 for mainly processing signals from the seat plate switch 10a. , Mainly comprising a harm prevention interlocking repeater 84 for controlling the power supply to the automatic closing device 50. And this control circuit 80 processes the signal input from the obstacle detection part 10a, the operation part 70, the exterior, etc., and controls the switch 40 and the automatic closure apparatus 50. FIG.
This control circuit 80 is preferably configured by a programmed logic circuit used in, for example, a microcomputer or a programmable controller so that the circuit configuration, setting value, etc. can be easily changed in accordance with the field situation. A wired logic circuit using a circuit or other electronic circuit may be used.

The brake mechanism 42, the automatic closing device 50, and the harm prevention interlocking relay 84 described above are released so that the opening / closing body 10 can be closed when an emergency closing signal is received and cannot be closed when a restoration signal is received. The release restraint means is configured.
The harm prevention interlocking relay 84 includes a battery (not shown) as a power source for operating the automatic closing device 50 of the release restraining means, and a battery test means (determining whether or not the battery is abnormal in voltage). (Not shown). The battery test means is an electric circuit configured to output a voltage to the light emitter of the operation unit 70 when the voltage of the battery becomes a specified value or less.

  The operation unit 70 includes a case 71 (see FIG. 3) attached to the guide rail 20, a rotary operation body 72 (see FIGS. 4 to 7) supported so as to rotate in the case 71, and the rotation. A recovery signal output unit 73 that senses rotational motion in one direction of the operating body 72 and outputs a recovery signal; and a battery test that senses rotational motion of the rotational operating body 72 in the reverse direction and outputs a battery test signal. A signal output unit 74; a light-emitting body 75 that is lit or flashed in response to the output of a recovery signal or a battery test signal; an emergency closing button 76 that is retracted by a pressing operation from the outside; An emergency closing signal output unit 77 that outputs a closing signal, and an engagement / disengagement member 78 that is supported so as to be engaged and disengaged by a rotational motion with respect to the emergency closing signal output unit 77 in the reverse state.

  The case 71 includes a main body 71a formed in a substantially rectangular box shape having an opening on the front side, and a substantially flat surface portion 71b attached to the main body 71a so as to close the opening. Is formed. The front portion 71b is provided with a through-hole for exposing a fitting portion 72a of the rotary operation body 72 described later, an emergency closing button 76, a light emitter 75, and the like.

As shown in FIG. 3, the case 71 is preferably disposed so as to avoid interference with the movable seat plate 12. More specifically, the dimension in which the front portion 71b of the case 71 protrudes from the guide rail 20 in the opening / closing body width direction (left direction according to FIG. 3) is s1, and the end of the guide rail 20 and the movable seat 12 in the width direction. The case 71 is provided so as to satisfy the relationship of s1 <s2 when the dimension between the parts is s2.
Further, in the opening / closing body thickness direction (vertical direction according to FIG. 3), a gap s <b> 3 with an appropriate interval is provided between the end portion of the movable seat plate 12 and the end portion of the front portion 71 b of the case 71.
The dimensional relationship s1 <s2 and the gap s3 may have only one of them.
In addition, the case 71 as an exterior material, in particular, the exposed surface portion 71b is preferably made of a flame retardant material, and is largely deformed by heat so that the shape can be generally maintained even at high temperatures. It is preferable to use a material that is less likely to melt or melt (for example, a material having a high melting point), and an installation mode in which the material does not fall off from the installation location when heated (for example, a mode in which the case 71 is fitted to the guide rail 20) Etc.).

  As shown in FIG. 4, the rotation operation body 72 includes a fitting portion 72 a provided at the rotation center portion and exposed to the outside, and a signal operation piece portion 72 b extending in one direction intersecting the rotation center line. , And an engagement / disengagement operation piece 72c extending in the other direction intersecting the same rotation center line, and being energized by the first energizing member 72d, the restoration signal output unit 73 and the battery test The neutral position where the signal output unit 74 is not activated is maintained.

The fitting portion 72a is formed so that the tip portion of the operation member X can be fitted, and according to the illustrated example, the fitting portion 72a has a hexagonal recess 72a1 into which one end portion of the operation member X, which is a hexagon wrench, can be fitted. .
The fitting portion 72a is supported by the main body portion 71a via a shaft support member (not shown) so as to rotate in both directions around the concave portion 72a1.
Moreover, this fitting part 72a is formed in the cross-sectional substantially concave shape which made the both-sides part protrude to the main body part 71a bottom side (right side according to FIG.4 (b)). One end side and the other end side of the urging member 72d are fitted together.

According to the illustrated example, the signal operation piece portion 72 b is a portion extending upward from the fitting portion 72 a and is located between the restoration signal output portion 73 and the battery test signal output portion 74.
According to the illustrated example, the engagement / disengagement operation piece 72c is a portion extending obliquely downward from the fitting portion 72a, and is close to the engagement / disengagement member 78 in a normal state as shown in FIG. 4B. .

The first urging member 72d is a spring having a shape in which one end side and the other end side of the coil spring are extended in substantially the same direction, and the center portion is fixed to the main body portion 71a. By engaging the one end side and the other end side with the center side portion of the rotary operation body 72, the rotary operation body 72 is maintained in a neutral position that does not rotate in any direction.
That is, according to the first urging member 72d, the rotating operation body 72 returns to the original neutral position when the external force is removed, regardless of the direction in which the rotary operation body 72 is rotated. become.

The restoration signal output unit 73 is a micro switch having an actuator unit 73a that can be swung, and is provided by a signal operation piece 72b of a rotary operation body 72 that rotates in one direction (clockwise in the illustrated example). When the actuator unit 73a swings, a contact signal as a restoration signal is output.
Similarly, the battery test signal output unit 74 is a micro switch having an actuator unit 74a that can be swung, and is a signal operation piece of the rotary operation body 72 that rotates in the reverse direction (counterclockwise in the illustrated example). When the actuator part 74a is swung by the part 72b, a contact signal is output.

  The light emitting body 75 is a light emitting diode (LED), and blinks or lights up when power is supplied from the harm prevention interlocking repeater 84.

The emergency closing button 76 includes a pressed portion 76a exposed from the front portion 71b of the case 71, and an engaged / disengaged piece portion 76b extending from one end side of the pressed portion 76a to the bottom side of the case 71. The cross section is formed in a substantially L shape.
The pressed portion 76a is provided with a display (letters “Emergency” in the illustrated example) prompting an emergency closing operation on the front portion.
The engaged / disengaged piece portion 76b is provided with an engagement / disengagement hole 76b1 for engaging / disengaging an engagement / disengagement member 78 described later.
The emergency close button 76 is supported so as to slide a predetermined amount in the front-rear direction (left-right direction according to FIG. 4B) relative to the main body 71a, and is forwardly moved by the second biasing member 76c. It is biased to the left (according to FIG. 4 (b)).
The second urging member 76c is a coil spring according to the illustrated example, but may be a leaf spring, rubber, or the like.

  The emergency closing signal output unit 77 is a micro switch having an actuator portion 77a that can be swung. When the actuator portion 77a is swung by being pressed by the emergency closing button 76, a contact signal as an emergency closing signal is output. Output.

The engaging / disengaging member 78 is a member that is rotatably supported with respect to the main body 71a. On the outer peripheral side of the engaging / disengaging member 78, an engaging / disengaging projection 78a that can be engaged / disengaged with respect to the engaging / disengaging hole 76b1 of the emergency closing button 76 is formed. The engagement / disengagement member 78 rotates the engagement / disengagement projection 78a in the disengagement direction by being pressed by the engagement / disengagement operation piece 72c of the rotary operation body 72 (see FIG. 6B).
The engaging / disengaging member 78 is biased by the third biasing member 78c so as to rotate the engaging / disengaging protrusion 78a in the engaging direction. The third urging member 78c is a tension spring according to the illustrated example. However, if the third urging member 78c acts in the same manner, for example, a compression spring, a torsion spring provided at the center of the engagement / disengagement member 78, a plate It can be replaced with a spring or the like.

Next, operation | movement of the operation part 70 of the said structure is demonstrated in detail based on FIGS.
First, as shown in FIGS. 4 (a) and 4 (b), in a normal state where nothing is operated, the neutral position where the rotating operation body 72 does not operate the recovery signal output unit 73 and the battery test signal output unit 74. The pressed portion 76a of the emergency close button 76 is positioned substantially flush with the front portion 71b of the case 71. The engagement / disengagement member 78 is in a state where the engagement / disengagement protrusion 78a is not engaged with the engagement / disengagement piece portion 76b of the emergency closing button 76. Specifically, the engagement / disengagement projection 78a is disposed outside the engagement / disengagement hole 76b1. The state is kept in contact with 76b.
Therefore, the operation unit 70 is in a state in which none of the recovery signal, the battery test signal, and the emergency close signal is output.

Further, as shown in FIG. 5A, when the emergency closing button 76 is pushed by a finger or the like, the actuator part 77a of the emergency closing signal output part 77 is pushed and moved by the retracted emergency closing button 76, An emergency closing signal output unit 77 outputs an emergency closing signal. At this time, the engagement / disengagement member 78 is rotated by the urging force of the third urging member 78 c to insert the engagement / disengagement projection 78 a into the engagement / disengagement hole 76 b 1 of the emergency closing button 76.
In the state where the pressing force by a finger or the like is applied to the emergency closing button 76 and the emergency closing button 76 is retracted to the limit (the state shown in FIG. 5A), the retracting direction of the engaging / disengaging protrusion 78a and the engaging / disengaging hole 76b1. A slight gap s is ensured between the edge of the two.

Next, as shown in FIG. 5B, when the pressing force by the finger or the like is released, the emergency closing button 76 is returned forward by the gap s by the biasing force of the second biasing member 76c.
At this time, the emergency closing signal output unit 77 stops outputting the emergency closing signal because the actuator unit 77a returns to the original state. However, as will be described later in detail, the closing operation of the opening / closing body 10 continues until the automatic closing stop signal or the restoration signal is input to the harm prevention interlocking relay 84.
In this state, since the emergency closing button 76 is immersed deeper than the front portion 71b of the case 71, it can be visually confirmed that there has been an operation on the emergency closing button 76.

Next, as illustrated in FIGS. 6A and 6B, the operation member X is inserted into the fitting portion 72 a of the rotary operation body 72. At this time, since the operation member X is a hexagonal wrench, the grip portion of the operation member X can be inserted at an appropriate angle that does not buffer the opening / closing body 10.
When the rotary operation body 72 is rotated in one direction (clockwise in the illustrated example), the engagement / disengagement operation piece 72c of the rotation operation body 72 comes into contact with the receiving portion 78b of the engagement / disengagement member 78. The removal member 78 rotates in the separation direction (clockwise according to the illustrated example). Therefore, the engaging / disengaging protrusion 78a of the engaging / disengaging member 78 is extracted from the engaging / disengaging hole 76b1 of the emergency closing button 76.
Therefore, the emergency closing button 76 is returned to the original normal state (the state shown in FIG. 6B) by the urging force of the second urging member 76c.
Further, as described above, when the rotary operation body 72 rotates in one direction, the actuator portion 73a of the recovery signal output unit 73 is swing-operated by the signal operation piece portion 72b of the rotary operation body 72. A recovery signal is output from the recovery signal output unit 73.
When the rotational force by the operation member X is removed, the rotational operation body 72 is returned to the neutral position by the urging force of the first urging member 72d.

Further, as shown in FIGS. 7A and 7B, the operation member X is inserted into the fitting portion 72a of the rotation operation body 72, and the rotation operation body 72 is moved in the reverse direction (counterclockwise in the illustrated example). When rotating, the actuator unit 74 a of the battery test signal output unit 74 is swing-operated by the signal operation piece 72 b of the rotation operation body 72, so that the battery test signal is output from the battery test signal output unit 74.
When the rotational force by the operation member X is removed, the rotary operation body 72 returns to the neutral position by the urging force of the first urging member 72d.
Note that when the rotary operation body 72 is rotated in the reverse direction (counterclockwise in the illustrated example), the rotation operation body 72 is rotated in the same direction as the rotation operation body 72 is rotated in the one direction (clockwise). Although it is possible to make the engagement / disengagement operation piece 72c contact the receiving portion 78b of the engagement / disengagement member 78, according to this embodiment, as shown in FIGS. The rotation operation body 72 and the engagement / disengagement member 78 are not brought into contact with each other by rotation in the reverse direction.

Next, the control operation of the opening / closing device 1 will be described in detail based on the block diagram of FIG. 9 and the flowcharts of FIGS. 10 and 11.
The following control operation starts in a standby state where the opening / closing body 10 is housed in the upper housing portion 31 and is restrained by the brake mechanism 42.
First, the control circuit 80 determines whether or not an emergency closing signal is input to the harm prevention interlocking relay 84 (step 1). If the signal is input, the harm prevention interlocking relay is performed. Power is supplied from the battery 84 to the automatic closing device 50 by a battery (it can also be a commercial power source when there is no power outage) until a recovery signal is input to operate the automatic closing device 50 (Step 2).

The emergency closing signal input to the harm prevention interlocking relay 84 may be a signal output from the operation unit 70 or a disaster prevention signal output from other than the operation unit 70. Even in this case, the process according to step 1 is performed.
And according to the said step 2, the drive shaft 41b of the opening / closing machine 40 will be in the state released from restraint by the brake mechanism 42 by the action | operation of the automatic closing device 50, and the opening / closing body 10 will start the closing operation by dead weight. become.
The automatic closing device 50 is configured to be in an activated state while power is supplied, except during an automatic closing stop signal being input.

  Next, during the closing operation of the opening / closing body 10, it is determined whether or not there is a sensing signal from the obstacle sensing unit 10a (step 3). If there is an obstacle sensing, the process proceeds to the next step 4a. Otherwise, the process proceeds to step 4b.

In step 4 a, an automatic closing stop signal is transmitted from the obstacle sensing device control panel 82 to the automatic closing device 50, the automatic closing device 50 is restored by this signal, and the drive shaft 41 b of the switch 40 is moved by the brake mechanism 42. It will be in the restrained state and the closing operation by the dead weight of the opening-closing body 10 will stop.
In step 5a, it is determined whether or not a restoration signal has been input from the operation unit 70 to the harm prevention interlocking repeater 84. If there is a restoration signal, the process proceeds to step 6b, which will be described later. If so, the process proceeds to step 6a.

In the next step 6a, it is determined whether or not the sensing signal from the obstacle sensing unit 10a is continued. If it is continued, the process returns to step 4a. If the sensing signal from the obstacle sensing unit 10a does not continue in step 6a, the process returns to step 2 and the closing operation due to the weight of the opening / closing body 10 is resumed.
As another example, the processing after step 6a may be returned to step 1.

Further, in step 4b, it is determined whether or not a restoration signal is input from the operation unit 70 to the harm prevention interlocking repeater 84. If there is a restoration signal, the process proceeds to the next step 5b. If not, the process returns to step 3.
According to the illustrated example, the recovery signal is output from the operation unit 70 (see FIG. 9). However, the recovery signal may be output from other than the operation unit 70. Even when the recovery signal is output from other than the operation unit 70 in the configuration, the process according to step 4b may be executed.

  In step 5b, the automatic closing device 50 is restored by stopping the power supply from the harm prevention interlocking relay 84 to the automatic closing device 50. Therefore, the drive shaft 41b of the opening / closing machine 40 is constrained by the brake mechanism 42, and the closing operation due to the weight of the opening / closing body 10 is stopped.

In the next step 6b, LED power is supplied from the harm prevention interlocking relay 84 to the operation unit 70 for a predetermined time, and the light emitter 75 of the operation unit 70 is lit or blinks.
Then, the processing by the control circuit 80 is returned to step 1.
Although not shown in the flowchart, as a result of the above-described steps, when the opening / closing body 10 is fully closed, the drive shaft 41b of the opening / closing device 40 is restored by the brake mechanism 42 by restoring the automatic closing device 50. It becomes a restrained state. For example, the restraining operation at the time of full closing may be performed by an automatic closing stop signal when the movable seat plate 12 is seated (contacted) on the contact target portion p. In the case of this example, when the opening / closing body 10 in the fully closed state is opened, the recovery operation may be performed manually on the operation unit 70.
As another example, the restraining operation when fully closed may be performed by inputting a fully closed signal by a lower limit switch (not shown) into the harm prevention interlocking relay 84 as a restoration signal.

  Next, processing when the operation unit 70 is subjected to a battery test operation will be described with reference to FIG. First, it is determined whether or not a battery test signal has been input from the operation unit 70 to the harm prevention interlocking relay 84 (step 11). If a battery test signal has been input, the process proceeds to the next step 12. Otherwise, the battery test signal input wait state is entered.

In step 12, it is determined whether or not the battery voltage is equal to or less than a specified value. If the battery voltage is equal to or less than the specified value, the process proceeds to the next step 13, and if not, the process returns to step 11.
In step 13, the power of the light emitter 75 is supplied from the harm prevention interlocking relay 84 to the operation unit 70. More specifically, the power supply is continued from the time when the battery test signal is input to the interlocking device for harm prevention 84 until a predetermined time after the battery test signal is not input. To do.
Therefore, when the light emitter 75 of the operation unit 70 is turned on or blinking, it can be visually confirmed that the battery of the interlocking relay for hazard prevention 84 is insufficient.

  In addition, according to the said embodiment, although the operation part 70 was provided in the surface where the opening-and-closing body 10 in the guide rail 20 is inserted, when the guide rail 20 is not embedded in a housing wall surface, the operation part 70 is provided. The guide rail 20 may be provided on the front surface or the back surface (the surface q1 or the surface q2 according to FIG. 3).

Moreover, it is preferable that the fitting part 72a of the rotary operation body 72 in the operation part 70 has a shape that makes it difficult for the rotary operation body 72 to be rotated with bare hands, and in particular, a female-side portion in the case of male-female fitting. Is preferred.
In the above embodiment, a hexagonal wrench is used as a preferred example of the operation member X, but other examples of the operation member include a plus screwdriver, a minus screwdriver, a screwdriver for mischief prevention special screw, various tools, and a locking device. It is also possible to use keys, other operation tools, and the like. In this case, the fitting portion 72a of the rotary operation body 72 is also formed in an appropriate shape corresponding to another example of the operation member.

  Further, according to the above-described embodiment, the release restraining means for releasing the opening / closing body 10 so as to be closeable or restricting the opening / closing body 10 to be non-closeable is configured by the configuration including the brake mechanism 42 and the automatic closing device 50. As another example of the restraining means, it is also possible to adopt a configuration in which the opening / closing body 10 is released so as to be closed or restricted so as not to be closed only by the brake mechanism 42.

  In addition, according to the above-described embodiment, the opening for allowing the opening / closing body 10 to appear and disappear is provided on the lower side of the storage portion 31, but as an additional configuration, a door-like member for opening and closing the opening is provided, You may make it open and close this door-shaped member manually or electrically. In this case, the height position of the operation unit 70 is disposed at least below the door-shaped member.

Further, as a configuration added to the operation unit 70, a counter for counting the number of times of opening / closing the opening / closing body 10 may be provided. For example, the counter is configured to electrically count a signal output from the switch control panel 81 in response to opening / closing of the opening / closing body 10 or to mechanically count opening / closing of the opening / closing body 10. And so on.
As a space-saving mode, the counter display unit 79a is preferably provided above the light emitter 75 in the operation unit 70 as shown by a two-dot chain line in FIG. . In the illustrated example, a three-digit number “012” arranged vertically indicates that the opening / closing body 10 has been opened and closed 12 times.

  Further, as a configuration added to the operation unit 70, a caution note 79b (see FIG. 2) for prompting battery replacement when the light emitter 75 is lit or blinked may be provided. The notice 79b is, for example, a character display such as “Please replace the battery when the LED blinks”, and when the vertical dimension of the emergency close button 76 is a, it is above the emergency close button 76. It is preferable to arrange in the range of 2a (2 times).

  Further, the operation unit 70 may be arranged on either the one side or the other side (upper side and lower side according to FIG. 3) with the opening / closing body 10 as a boundary, but particularly preferably, the operation side 70 or The side that is expected not to become a fire room, the side that escapes, the side that is close to the exit, etc.

Moreover, according to the said embodiment, although the operation part 70 was provided with respect to the guide rail 20 fixed, as another example, the operation part 70 is provided with respect to a movable guide rail (not shown). It may be.
The movable guide rail may be configured such that, for example, one end side is pivotally supported by a stationary part on the storage unit 31 side and the other end side rotates. According to this configuration, the movable guide rail rotates between a substantially upright position so as to guide the opening / closing body 10 in the vertical direction and a storage position substantially parallel to the storage portion 31.
Further, as another example of the movable guide rail, it may be composed of a plurality of long members connected by a pivotal support part, and one end side thereof may be pivotally supported on a stationary part on the storage part 31 side. The movable guide rail having this configuration is accommodated in the accommodating portion 31 side so as to be folded from a substantially upright position where the opening / closing body 10 can be guided in the vertical direction. In addition, in this structure, the said operation part 70 is arrange | positioned in places other than the shaft support part and pivot part in the said movable guide rail.

  Further, according to the above embodiment, when a pressing force is applied to the emergency closing button 76, a contact signal (for example, an ON signal) as an emergency closing signal is output from the emergency closing signal output unit 77 (FIG. 5A). Even if the pressing force is released (the state shown in FIG. 5B), the automatic closing device 50 is activated by the output of the contact signal so that the opening / closing body 10 is closed. As another example, the automatic closing device 50 is operated by a contact signal (for example, an OFF signal) of the emergency closing signal output unit 77 when the pressing force is released (the state shown in FIG. 5B) to open and close the opening / closing body. 10 may be closed.

  Moreover, according to the said embodiment, although the opening / closing body 10 was comprised from several slats, as another example of the opening / closing body 10, the whole area | region or one part area | region of the opening / closing body 10 is nonflammable flexible. You may make it comprise from a property sheet member, a panel-shaped member, etc. FIG.

  Further, according to the above embodiment, the emergency closing button 76 is substantially flush with the front portion 71b of the case 71 during normal operation (see FIG. 4B). As another example, the emergency closing button 76 When 76 protrudes outward from the front portion 71b of the case 71 in a normal state and the pressing force is removed after the pushing operation, the emergency close button 76 may be substantially flush with the front portion 71b.

In addition, according to the above-described embodiment, as a particularly preferable example, a configuration (an engagement / disengagement hole 76b1, an engagement / disengagement member 78, a third urging member 78c, etc.) for holding the emergency closing button 76 in an immersive state is provided. However, as another example, these configurations can be omitted so that the emergency closing button 76 is not held in an immersive state.
As another example, when the emergency closing button 76 is pressed, another part (not shown) is activated by an arbitrary mechanism, and this activated state is the rotational operation (recovery operation) of the rotary operation body 72. May be restored to the original state.
As another example, the emergency closing button 76 may be pushed by breaking the push-through window. If it demonstrates in detail, the said breaking window will be formed from the synthetic resin material etc. which have a flame retardance, for example, and it is provided in the front side of the emergency closing button 76 in the front part 71b of the case 71. FIG. As still another example, the push window may be provided on the surface side of the emergency closing button 76 itself.
According to the aspect having the push-break window, it is possible to visually confirm that the operation on the emergency closing button 76 has been performed due to the push-break window being pushed.

Moreover, according to the said embodiment, although the single operation part 70 was provided with respect to the single switchgear 1, as another example, you may make it provide a several operation part with respect to a single switchgear. Good. In this case, the control circuit is preferably configured so that the same type of signals from the plurality of operation units are processed under the OR condition.
As another example, it is also possible to adopt a configuration in which a plurality of switching devices are controlled by a single operation unit.

  In addition, as a configuration added to the above embodiment, when there is a restoration signal and when there is a battery test signal, the lighting time of the light emitter, the manner of blinking, the emission color, etc. preferable.

Moreover, according to the example of illustration, although the light-emitting body 75 was inserted in the through-hole (window part) provided in the front part of the case 71, as another example, without inserting the light-emitting body 75 in the said through-hole, a case You may make it arrange | position to 71 inside (inside the front part 71b).
Further, as another example, the through-hole (window) is a light-emitting state of the light emitter 75 such as a fine mesh metal member or punching metal, heat-resistant glass, a thin silica cloth that transmits light, or a paper-like material made of an inorganic material. May be covered with a protective cover having flame resistance and heat resistance that can be discriminated through.
Furthermore, although the through hole (window) is a round hole in the illustrated example, as another example, if the light emission and extinction of the light emitter 75 can be visually discriminated, a fine hole, a narrow slit hole, etc. It may be. According to this configuration, the light emitter 75 can be more effectively protected.

  In addition, the means for notifying when there is a restoration signal and when there is a battery test signal is not limited to the light emitter 75, for example, a display device that distinguishes and displays characters, symbols, images, etc. Various audiovisual means such as a sound generating device that generates sound by distinguishing timbre, pitch, sound length, melody, etc. can be used alone or in appropriate combination. In addition, when using auditory means, such as a sound generator, it is good also as an aspect which exposes sound generation parts, such as a speaker, but it is good also as an aspect which is not exposed for a protection purpose etc.

  Further, according to the above embodiment, the opening / closing machine 40 includes the drive source 41 (such as an electric motor) for opening / closing the opening / closing body 10, but as another example of the opening / closing machine 40, the drive It is also possible to adopt a mode in which the source 41 is omitted, a mode in which a mechanism for manually driving the drive shaft 41b is provided instead of the drive source 41 (such as an electric motor).

The front view which shows an example of the switchgear concerning this invention. The principal part enlarged view which shows the external appearance of the operation part in the switchgear. (III)-(III) sectional view taken on the line in FIG. It is an internal structure figure of an operation part, (a) shows the normal state which is not operated from the front side, and (b) shows the normal state from the side. It is an internal structure figure of an operation part, (a) shows the state where pressing force was applied to the emergency closing button from the side, and (b) shows the state where the pressing force was canceled from the side. It is an internal structure figure of an operation part, (a) shows the state where a restoration signal output part outputted a restoration signal by rotation operation of a rotation operation object from the front side, and (b) shows the state from the side side. . It is an internal structure figure of an operation part, (a) shows the state where a battery test signal output part outputted a battery test signal by rotation operation of a rotation operation object from the front side, and (b) shows the same state from the side. ing. The internal structure figure of a switch. The block diagram of a control circuit. The flowchart which shows an example of a process when there exists an emergency closing signal. The flowchart which shows an example of a process when there exists a battery test signal.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10: Opening / closing body 20: Guide rail 30: Winding device 31: Storage part 40: Opening / closing machine 50: Automatic closing device 70: Operation part 72: Rotary operation body 72d: 1st biasing member 72a: Fitting part 73: Recovery signal output unit 74: Battery test signal output unit 75: Light emitter 76: Emergency closing button 76c: Second urging member 77: Emergency closing signal output unit 78: Engaging / disengaging member 78c: Third urging member X: Operation member

Claims (10)

An opening / closing body that is drawn out from the storage unit and can be closed by its own weight; And an opening and closing device including an operation unit operated to transmit the restoration signal to the release restraining means,
The operation unit includes a rotary operation body that can be rotated by a separate operation member, and is configured to detect the rotational motion of the rotary operation body and output the recovery signal.
The rotary body, opens the closing device you said that disposed in a state of exposing the fitting portion capable fitting to the operating member at its rotation center.   The opening / closing apparatus according to claim 1, wherein the operation member is a hexagon wrench. A battery that is a power source for operating the release restraining means, and a battery test means that determines whether or not the battery has a voltage abnormality when a battery test signal is received,
The operation unit senses a rotational motion in one direction of the rotational operation body and outputs the restoration signal, and senses a rotational motion of the rotational operation body in a reverse direction and outputs the battery test signal. The switchgear according to claim 1 or 2, wherein the switchgear is configured as described above. A recovery signal output unit that is engaged with the rotational operation body when rotating in one direction and outputs the recovery signal, and a battery test signal that is engaged with the rotational operation body when rotated in the reverse direction. 4. The switchgear according to claim 3 , further comprising: a battery test signal output unit that outputs a battery test signal.   The switchgear according to claim 4, further comprising a first urging member that maintains the rotating operation body in a neutral position so as not to output the restoration signal and the battery test signal.   6. The opening / closing device according to claim 3, wherein the operation unit is provided with a light emitter so as to light or blink in accordance with the output of the restoration signal or the battery test signal. apparatus. The operation unit includes an emergency closing button that is retracted by a pressing operation, and an emergency closing signal output unit that is pressed by the emergency closing button and outputs the emergency closing signal.
The switchgear according to any one of claims 1 to 6, wherein the emergency closing button is provided so as to maintain a retracted state even after the emergency closing signal is output. A second urging member for urging the emergency closing button in the forward direction; an engagement / disengagement member supported so as to be engaged / disengaged by a rotational movement with respect to the emergency closure button in the retracted state; A third urging member for urging in the combined rotation direction,
When the emergency closing button is retracted, the engagement / disengagement member is rotated by the urging force of the third urging member to engage the emergency closing button in the retracted state, and the retracted state of the emergency closing button is maintained. And
When the rotary operation body is rotated to output the recovery signal, the engagement / disengagement member is pushed by the rotary operation body and rotates in the reverse direction to disengage from the emergency closing button. 8. The opening / closing device according to claim 7, wherein the closing button is advanced to the original position by the urging force of the second urging member.   The switchgear according to any one of claims 1 to 8, wherein the operation unit is provided on a guide rail that guides a widthwise end of the switchgear downward.   The opening / closing apparatus according to claim 9, wherein the operation portion is provided on a surface of the guide rail into which a width direction end portion of the opening / closing body is inserted.

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