JP7123200B2 - drive control system - Google Patents

Description

More particularly, the present invention relates to control systems for drive mechanisms that can be used, for example , to open and close various doors, gates or gates.

Generally, in the side-pull type tide gates, small-sized tide gates are manually opened and closed. In addition, in the case of medium and large tidal gates, the opening and closing operation is performed electrically, and the opening and closing operation is performed manually as an auxiliary operation.

Patent Literature 1 describes an example of a conventional side-pull-door-type medium-sized and large-sized tide gate. The tide gate is opened and closed by a motor that controls compressed gas by an electric control device and uses the compressed gas as a power source.

JP 2013-144919 A

However, the tide gate described in Patent Document 1 requires an electric control device when the gate is closed, so there is a problem that the gate cannot be closed when power is lost in an emergency such as an earthquake. Also, if the lock is left fully open for a long period of time, there is a risk that the lock will not be able to be closed because a large static frictional force will be generated due to the sticking of oil and fat, and the resistance will increase. On the other hand, in order to ensure the closing operation, it is necessary to drive the lock with a large driving force. It could have been too large. Even if the lock lock deceleration point detection sensor or limit switch can detect that the lock is about to close completely, if the closing speed of the door is excessive, deceleration is impossible or impossible. Even if it did, it would not be in time, and there was a risk of damaging the gate mechanism or harming passers-by. Furthermore, there was also the problem that the maintenance and management of the compressed gas was complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems. To provide a control system for a drive mechanism which requires no equipment and is easy to maintain.

The drive mechanism control system according to claim 1 of the present invention comprises:
When the door portion is locked at the open position and the door portion is closed, the locked state of the door portion is released, and the door portion is automatically driven in the closing direction by the gravity caused by the mass of the weight. a drive mechanism configured to :
a control device for controlling the drive mechanism to open and close the door;
is composed of
The drive mechanism includes a main weight and an auxiliary weight as the weights,
a connecting member that enables connection between the main weight and the auxiliary weight;
one or more auxiliary weights are connected vertically below the main weight located vertically uppermost, with a space therebetween;
At the start of driving, all the weights are driven using their weights,
After the door portion has started to move, the connection of the plurality of weights is released from the vertically lower side, and the weight located at the uppermost position in the vertical direction is configured to be driven using its weight. drive mechanism control system.
The drive mechanism control system according to claim 2, wherein the control device includes a battery for maintaining the locked state of the weight and the door,
The battery is controlled to release the locked state of the weight and the door in accordance with information, bulletin, advisory, or warning from a remote operation or a nationwide instantaneous warning system. .
According to the drive mechanism control system according to the present invention, it is possible to automatically start driving safely and reliably and close the gate even when the commercial power supply is lost, and furthermore, there is no need for special equipment such as compressed gas. , maintenance can be simple.
It is characterized by
The drive mechanism control system according to claim 3 is characterized in that the battery is charged by at least one of a commercial power source, a generator and a solar panel.
In the drive mechanism control system according to claim 4 , the control device receives a signal from the nationwide instantaneous warning system, a wireless signal from a mobile phone or a mobile tablet, and a wired or wireless signal from a remote controller or the like. characterized in that it is configured to
The control system for the drive mechanism according to claim 5 is configured so that the camera, the revolving light/chime, the pinch prevention sensor, and the obstacle sensor can be used, and an evacuating person is pinched by the door. characterized by being configured to function as a safety device capable of avoiding
In the drive mechanism control system according to claim 6 , the drive mechanism includes a main weight and an auxiliary weight as the weights,
a connecting member that enables connection between the main weight and the auxiliary weight;
one or more auxiliary weights are connected vertically below the main weight located vertically uppermost, with a space therebetween;
At the start of driving, all the weights are driven using their weights,
After the door portion has started to move, the hooking of the main weight and the one or more auxiliary weights is sequentially released, the connection of the plurality of weights is sequentially released from the vertically lower side, and the vertically uppermost one of the weights is sequentially released. The weight and the weight connected to the weight are configured to be driven using the weight.
According to the drive mechanism of the present invention, the object to be driven can be driven with a large driving force at the start of driving, and the object to be driven is driven while the driving force is attenuated after the object to be driven starts to move. . Therefore, at the start of driving of the object to be driven, the object to be driven can reliably start moving. The object keeps moving at a safe speed.

According to the present invention, even when the commercial power supply is lost, it is possible to automatically start driving safely and reliably to close the gate, etc., and furthermore, there is no need for special equipment such as compressed gas, and maintenance is simple. A control system for a drive mechanism is provided.

It is a front view of the open state of the tide gate according to the embodiment of the present invention. It is a top view of the gate open state of the tide gate which concerns on embodiment. FIG. 2 is a cross-sectional view of the tide gate according to the embodiment, viewed from the direction of the arrows on line III-III in FIG. 1; It is a front view of the closed state of the tide gate according to the embodiment. It is a top view of the gate closed state of the tide gate which concerns on embodiment. It is a front view of the drive part of the tide gate which concerns on embodiment. It is a top view of the drive part of the tide gate which concerns on embodiment. FIG. 4 is a right side view of a locking mechanism, a transmission mechanism, and a speed control mechanism of the driving portion of the tide gate according to the embodiment; FIG. 4 is a cross-sectional view of the manual handle, screw brake and disconnect mechanism of the tide gate according to the embodiment; FIG. 5 is a cross-sectional view of the manual handle, screw brake, and separation mechanism during manual opening operation of the tide gate according to the embodiment; FIG. 5 is a schematic diagram for explaining the operation of the claw gear during manual opening operation of the tide gate according to the embodiment; FIG. 5 is a cross-sectional view of the manual handle, the screw brake, and the separation mechanism during manual closing operation of the tide gate according to the embodiment; FIG. 4 is a schematic diagram showing an example of a method of connecting a main weight and one or more auxiliary weights; 1 is a block diagram showing an example of a tide gate control system according to an embodiment; FIG.

An embodiment of a tide gate using the drive mechanism of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a front view of an open state of a tide gate according to an embodiment of the present invention. FIG. 2 is a plan view of an open state of the tide gate according to the embodiment. FIG. 3 is a cross-sectional view of the tide gate according to the embodiment, viewed from the direction of arrows on line III-III in FIG. FIG. 4 is a front view of the tide gate according to the embodiment in a closed state. FIG. 5 is a plan view of the tide gate according to the embodiment in a closed state.

A tide gate 10 according to an embodiment of the present invention is a side-pull door type tide gate that opens and closes an opening 2 formed between embankments 1 and 3 . The tide gate 10 is positioned on one side of the embankment 1 to maintain the open state of the door when the gate is open (hereinafter also referred to as "normal time"), and when the gate is closed (hereinafter also referred to as "tidal time"). ), proceed toward the other embankment 3, close the door, and close the opening 2.

Here, the sea side of the tide gate 10 is defined as the front side (front side), the land side is defined as the rear side (rear side), and the direction from the sea to the land is defined as the sea-land direction. The side that moves when the opening 2 is opened is defined as the open side (left side), and the side that the tide gate 10 moves when closing the opening 2 is defined as the closed side (right side). use these terms.

The tide gate 10 includes a door portion 12 and a drive portion 18 for opening and closing the door portion 12 to open and close the opening 2 .

(Door part of tide gate)
The door portion 12 includes a laterally pulling door 14, a door portion supporting member 16, a guide 102, a pair of guide rollers 104a and 104b, a pair of guide rollers 104c and 104d, a pair of guide rollers 104e and It has a guide roller 104f, a pair of wheels 110a and 110b, a pair of wheels 110c and 110d, a pair of rails 130a and 130b, and watertight rubber (not shown).

The horizontal sliding door 14 has a rectangular parallelepiped shape. 14 has a left side 14e and a right side 14f opposite to each other in the direction of movement thereof. The lateral length of the door 14 in the horizontal direction is set slightly longer than the length of the opening 2 formed between the embankment 1 and the embankment 3, and the height of the lateral door 14 is the height of the embankment 1. and the height of the embankment 3 is set substantially equal. The side-pull door 14 is made of steel or the like so as to be strong enough to protect against tides.

The door support member 16 is attached to the left side surface 14e of the laterally sliding door 14, that is, the side surface on the open side. The door part support member 16 is attached so as to extend along the moving direction of the laterally pulling door 14 in a substantially V-shaped state. The door support member 16 has a front side surface 16a and a rear side surface 16b facing each other in the sea and land direction of the horizontal sliding door 14, and an upper surface 16c in the height direction.
On the upper surface 16c, one hook 84 for door linear member is formed on the opening side, and the other hook 86 for door linear member is formed on the closing side.

The elongated guide 102 has a U-shaped cross section rotated counterclockwise by 90 degrees. A long guide 102 is supported from the horizontal sliding door 14 by guide supporting members 100a, 100b, 100c, and 100d which are fixed to the upper surface 1a of one embankment 1 at regular intervals. It is arranged on the upper surface 14 c of the laterally pulling door 14 and the upper surface 16 c of the door support member 16 across the member 16 . In the elongated guide 102, as shown in FIG. 3, each of the guide support member 100a, the guide support member 100b, the guide support member 100c, and the guide support member 100d has a substantially inverted L-shaped cross section, and their long arms It is fixed to the back surface of the part 101 . The guide 102, which has a U-shaped cross section rotated counterclockwise by 90 degrees, has a front side portion 102a arranged along the front side surface 14a of the horizontal pull door 14, and a rear side portion 102b arranged horizontally. It is arranged along the back side 14b of the sliding door 14. - 特許庁

The pair of guide rollers 104a and 104b are rotatably fixed at positions near the right side 14f of the upper surface 14c of the horizontal sliding door 14, respectively. The guide roller 104a is arranged on the side of the front side surface 14a, and the guide roller 104b is arranged on the side of the rear side surface 14b. isolated. Between the pair of guide rollers 104a and 104b, a door linear member 240, which will be described later, passes. The guide roller 104a has a roller shaft extending in the height direction, and the outer peripheral surface of the guide roller 104a is in contact with the inner surface of the front side portion 102a of the guide 102 . The guide roller 104b has a roller shaft extending in the height direction, and the outer peripheral surface of the guide roller 104b is in contact with the inner surface of the inner side portion 102b of the guide 102 .

The pair of guide rollers 104c and 104d are rotatably fixed at positions near the left side 14e of the upper surface 14c of the horizontal sliding door 14, respectively. The guide roller 104c is arranged on the side of the front side surface 14a, and the guide roller 104d is arranged on the side of the rear side surface 14b. isolated. A door linear member 240 passes between the pair of guide rollers 104c and 104d. The guide roller 104c has a roller shaft extending in the height direction, and the outer peripheral surface of the guide roller 104c is in contact with the inner surface of the front side portion 102a of the guide 102 . The guide roller 104d has a roller shaft extending in the height direction, and the outer peripheral surface of the guide roller 104d is in contact with the inner surface of the inner side portion 102b of the guide 102 .

The pair of guide rollers 104e and 104f are rotatably fixed to the left side of the upper surface 16c of the door support member 16, respectively. The guide roller 104e is arranged on the front surface 16a side of the door support member 16, and the guide roller 104f is arranged on the inner surface 16b side of the door support member 16. A shorter distance and separated by a predetermined distance. A door linear member 240 passes between the pair of guide rollers 104e and 104f. The guide roller 104e has a roller shaft extending in the height direction, and the outer peripheral surface of the guide roller 104e is in contact with the inner surface of the front side portion 102a of the guide 102 . The guide roller 104f has a roller shaft extending in the height direction, and the outer peripheral surface of the guide roller 104f is in contact with the inner surface of the inner side portion 102b of the guide 102 .

Therefore, the door portion 12 can move forward and backward along the pair of linear rails 130 a and 130 b according to the guides 102 .

The pair of wheels 110a and 110b are rotatably attached to the lower surface 14d of the horizontal sliding door 14 at positions closer to the right side surface 14f. The wheel 110a is arranged on the side of the front side 14a, the wheel 110b is arranged on the side of the rear side 14b, and the wheels 110b are separated by the axle 116 by the distance between the pair of rails 130a and 130b. The axle 116 is fixed at a roller bearing 114a fixed at a position closer to the lower right side 14f of the front side 14a of the horizontal sliding door 14 and at a position closer to the lower right side 14f of the inner side 14b of the horizontal sliding door 14. It is rotatably supported by the roller bearing 114b. A pair of wheels 110a and 110b moves forward and backward while rotating on a pair of rails 130a and 130b.

The pair of wheels 110c and 110d are rotatably attached to the lower surface 14d of the horizontal sliding door 14 at positions near the left side surface 14e. The wheel 110c is arranged on the side of the front side surface 14a, and the wheel 110d is arranged on the side of the rear side surface 14b. The axle 116 is fixed at a roller bearing 114a fixed at a position closer to the lower left side 14e of the front side 14a of the horizontal sliding door 14 and at a position closer to the lower left side 14e of the inner side 14b of the horizontal sliding door 14. It is rotatably supported by the roller bearing 114b. A pair of wheels 110a and 110b moves forward and backward while rotating on a pair of rails 130a and 130b.

Each of the pair of rails 130a and 130b is embedded in the landing surface with its upper surface exposed. The distance between the rails 130a and 130b in the width direction is shorter than the thickness dimension of the horizontal sliding door 14 in the sea and land direction, and is approximately the distance between the wheels 110a and 110b and the distance between the wheels 110c and 110d. set to be equal. The length of the pair of rails 130a and 130b is necessary for the horizontal sliding door 14 to be positioned on one side of the embankment 1 in normal times and to advance to the other side of the embankment 3 in an emergency to close the opening 2. and set to a sufficient length.

A watertight rubber (not shown) is provided on the front side (sea side) and lower surface 14d of the horizontal sliding door 14 so as to crawl on the landing surface from the left side 14e to the right side 14f of the horizontal sliding door 14. there is The watertight rubber is a member for preventing seawater such as a tsunami or storm surge from leaking to the land side from the closed tide gate 10 during tide control.
The watertight rubber (not shown) is also provided on the contact surface of the embankment 3 with the right side face 14f of the horizontal sliding door 14. As shown in FIG.

(Driving part of tide gate)
FIG. 6 is a front view of the drive section of the tide gate according to this embodiment. FIG. 7 is a plan view of the drive section of the tide gate according to this embodiment. FIG. 8 is a right side view of the locking mechanism, the transmission mechanism, and the speed control mechanism of the drive section of the tide gate according to the present embodiment.

The driving portion 18 for opening and closing the door portion 12 includes a main weight 72, one or more auxiliary weights 74 connected to the main weight 72 and vertically connected to each other, and a total of the main weight 72 and one or more auxiliary weights 74. A transmission mechanism 20 for transmitting gravity caused by the mass to the door portion 12, and the door portion 12 is manually or electrically moved to a position on one side of the embankment 1 (hereinafter also referred to as an "open position") and locked. and a speed suppression mechanism 40 that is connected to the transmission mechanism 20 and suppresses a change in the moving speed of the door portion 12 .

The drive unit 18 of the tide gate 10 serves as one of the means for closing the door 12 by applying gravity due to the total mass of the main weight 72 and one or more auxiliary weights 74 , that is, the main weight 72 and one or more auxiliary weights 74 . of potential energy is used as a power source.

The potential energy of the main weight 72 and one or more auxiliary weights 74 is used to sequentially lift the main weight 72 and one or more auxiliary weights 74 via the transmission mechanism 20 by a manual handle or an electric motor when opening the door 12. stored by

Normally, the tide gate 10 is lifted by the locking mechanism 30 with the door portion 12 locked at the open position and the main weight 72 and one or more auxiliary weights 74 resisting their own gravity. waiting in a locked state.

When the door portion 12 begins to move and the door portion 12 starts to close (hereinafter also referred to as “closing operation start point”), the driving portion 18 causes the locking mechanism 30 to move the door portion 12 and the main weight 72 and The one or more auxiliary weights 74 are released from the locked state, and the gravity caused by the total mass of the main weight 72 and the one or more auxiliary weights 74 automatically moves the door portion 12 in the closing direction via the transmission mechanism 20. is configured to drive to

Further, after the door portion 12 has started to move, the drive portion 18 is such that the connection between the main weight 72 and one or more auxiliary weights 74 is sequentially released as described later, and at least the main weight 72 and the connection are connected to the transmission mechanism 20 . It is configured to automatically drive the door portion 12 in the closing direction via the transmission mechanism 20 by gravity caused by the total mass of the auxiliary weight 74 in the state.

(Connection of main weight and auxiliary weight)
The main weight 72 is vertically uppermost, and one or more auxiliary weights 74 are connected vertically below the main weight 72 at predetermined intervals. In the following embodiment, the case where there is one auxiliary weight 74 will be described as an example. good too. The landing surface below the primary weight 72 and the one or more secondary weights 74 may be dug out as necessary to ensure the distance of descent of the primary weight 72 and secondary weights 74 .

As shown in FIG. 6, the main weight 72 has a rectangular parallelepiped shape, and is housed in a substantially cylindrical connecting member 76 described later so that the main weight 72 can move up and down inside the connecting member 76 .

The connecting member 76 has an opening 700 , a hooking portion 760 , an auxiliary weight support portion 762 , and an opening 702 . A connecting member 76 enables connection between the main weight 72 and the auxiliary weight 74 . The lateral width of the connecting member 76 is set slightly larger than the lateral width of the main weight 72, so that the outer peripheral surface 72a of the main weight 72 and the inner peripheral surface 76a of the connecting member 76 slide smoothly. ing.

An opening 700 is formed at the upper end of the connecting member 76 , and a hooking portion 760 is provided so as to horizontally protrude toward the opening 700 . An auxiliary weight support portion 762 extending vertically downward is provided at the lower end of the connecting member 76 . The auxiliary weight support portion 762 has an opening 702 formed at its lower end. By fitting the outer circumferential surface of the rectangular auxiliary weight 74 to the inner circumferential surface of the opening 702 , the auxiliary weight support portion 762 of the connecting member 76 is attached. Auxiliary weights 74 are supported on the .

The main weights 72 and the auxiliary weights 74 are made of a metal with high density such as iron or lead in order to reduce the volume and increase the mass.

When the door portion 12 is open in a normal state, the connecting member 76 is suspended by the main weight 72 with the hooking portion 760 of the connecting member 76 hooked on the upper surface of the main weight 72 . Therefore, the weight linear member 200 is subjected to gravity due to the total mass of the main weight 72 and the auxiliary weight 74 .

In the present embodiment, "the gravity caused by the total mass of the main weight 72 and the auxiliary weight 74" is strictly speaking the gravity caused by the total mass of the main weight 72 and the auxiliary weight 74, It is the sum of the gravitational forces resulting from the total mass of the pulley 220 and movable pulley 222 and the connecting member 76 .

At the start of the closing operation of the door portion 12, the driving portion 18 is driven in the direction of closing the door portion 12 via the transmission mechanism 20 by gravity caused by the total mass of the main weight 72 and the auxiliary weight 74. is configured as At this time, if the tide gate 10 is left open for a long period of time, excess oil and fat will adhere to each part of the drive unit 18, and the initial movement resistance (maximum static friction force) of the door unit 12 will decrease. expected to increase. Even at that time, since the weight has a two-stage structure of the main weight 72 and the auxiliary weight 74, the weight increases at the start of the closing operation of the door portion 12, and the door portion 12 can be closed without delay. You can start moving.

Further, after the door portion 12 starts to move toward the embankment 3 (close side), the driving portion 18 lowers the main weight 72 , the auxiliary weight 74 and the connecting member 76 via the transmission mechanism 20 . When the auxiliary weight 74 and the connecting member 76 located below the main weight 72 reach the landing surface and stop descending, the hooking portion 760 of the connecting member 76 is released from the upper surface of the main weight 72, and the main weight 72 and the main weight 72 are separated. The engagement with the auxiliary weight 74 is released.

After that, only the main weight 72 smoothly descends inside the connecting member 76 until it contacts the upper surface of the auxiliary weight 74 . Therefore, the gravity caused by the mass of the main weight 72 connected to the transmission mechanism 20 drives the door portion 12 in the closing direction via the transmission mechanism 20 . At this time, the door portion 12 is driven in the closing direction only by the gravity caused by the mass of the main weight 72, so the door portion 12 decelerates due to the rolling friction caused by the wheels 110a to 110d and the sliding friction caused by the watertight rubber. Or, it can move at a moderate speed without accelerating with a large acceleration. It is preferable that the door portion 12 reaches the embankment 3 when the main weight 72 reaches the upper surface of the auxiliary weight 74 .

Further, the engagement release (disconnection) between the main weight 72 and the auxiliary weight 74 is set to be performed when the main weight 72 descends through a stroke of about 10% to 20% of the descending stroke of the main weight 72. is preferred. This is to prevent the door portion 12 from excessively accelerating. However, if it is desired to increase the closing speed of the door portion 12, the release (disconnection of connection) of the auxiliary weight 74 from the main weight 72 may be performed after a longer stroke.

Further, the method of connecting the main weights 72 and the auxiliary weights 74 may be multi-staged by engaging the hooking portions 760 of the connection members of one or more auxiliary weights 74 above the main weights 72 . According to the above configuration, after the closing operation of the door portion 12 is started, the driving portion 18 sequentially releases the engagement (connection) between the main weight 72 and the two or more auxiliary weights 74 and connects them to the transmission mechanism 20. The door portion 12 is driven in the closing direction via the transmission mechanism 20 by gravity caused by at least the total mass of the main weight 72 and the auxiliary weight 74 in the hooked (connected) state.

As a multi-stage method, for example, one step above the connecting member 76 so as to include the connecting member 76 hooked on the upper surface of the main weight 72 and the auxiliary weight 74 supported by the connecting member 76. The hooking portion 760 of the large connecting member 76 may be hooked. Similarly, by including the connecting member 76 and the auxiliary weights 74 in a stepwise manner with a larger connecting member 76, the method of connecting the main weight and two or more auxiliary weights 74 can be multi-staged.

As another method of connecting multistage weights, two or more weights other than the weight positioned vertically uppermost connected to the transmission mechanism 20 are provided with a locking member (rod or wire), and the weights connected to the transmission mechanism 20 are positioned vertically uppermost. One of the weights with a hooking member (rod or wire) is hooked on the weight located at All of the weights may be connected to the transmission mechanism 20 and vertically connected to each other by sequentially hooking the weights. In the case of this configuration, there is an advantage that the connection is unlikely to be unintentionally released in the event of an earthquake or the like.

For example, specifically, as shown in FIG. 13 , a pair of rods (hereinafter referred to as “rods 76”) that are connecting members 76 (locking members) are inserted in front and rear or left and right of the main weight 72 . holes are formed, and the number of pairs of holes is cologarithmic with the number of one or more auxiliary weights 74 connected to the main weight 72 . Two or more auxiliary weights 74 positioned vertically below the main weight 72 at predetermined intervals are similarly formed with a pair of holes for inserting the rod 76 in the front and rear or left and right. The rod 76 has a hook portion 760 at its upper end and an auxiliary weight support portion 762 at its lower end. A hooking portion 760 of the rod 76 is a member for hooking onto the upper surface of the main weight 72, and is formed in a substantially T-shaped projection. The auxiliary weight support portion 762 of the rod 76 is a member for supporting the lower surface of the auxiliary weight, and is formed in a substantially inverted T-shaped projection. The main weight 72 and two or more auxiliary weights 74 are connected via rods 76 .

FIG. 13(a) shows that when the connecting member is a rod, the main weight 72 and two or more auxiliary weights 74 are lifted and locked by the locking mechanism 30 while the door portion 12 is waiting at the open position. It is a schematic diagram showing a state in which the FIG. 13(b) shows that when the connecting member is a rod, the locking mechanism 30 releases the locked state of the door portion 12, the main weight 72 and the auxiliary weight 74, and the door portion 12 moves to the closed position described later. and a state in which the main weight 72 and two or more auxiliary weights 74 are lowered to the lowest position.

After the locking mechanism 30 releases the locked state of the door portion 12, the main weight 72 and the auxiliary weight 74 from the state of FIG. Auxiliary weight 74a'') reaches a landing surface (not numbered) and stops. As a result, the rod 76 supporting the auxiliary weight 74 a separates the hooking portion 760 from the upper surface of the main weight 72 and disconnects from the main weight 72 .
Subsequently, the auxiliary weight (hereinafter referred to as "auxiliary weight 74b") located next to and above the auxiliary weight 74a reaches the upper surface of the auxiliary weight 74a and stops. As a result, the rod 76 supporting the auxiliary weight 74b separates the hooking portion 760 from the upper surface of the main weight 72 and disconnects from the main weight 72 .
Similarly, the engagement (connection) between the main weight 72 and two or more auxiliary weights 74 is sequentially released.

As described above, at the time when the closing operation of the door starts, the gravity caused by the total mass of the main weight 72 and one or more auxiliary weights 74 causes the door 12 to move through the transmission mechanism 20 connected to the upper surface of the main weight 72. is driven in the closing direction, and after the door portion 12 has started to move, the transmission mechanism 20 is driven by gravity due to the total mass of at least the main weight 72 connected to the transmission mechanism 20 and the auxiliary weight 74 in the latched state. to drive in the direction to close the door.
Therefore, the driving force of the driving portion 18 that drives the door portion 12 drives the door portion 12 while the force is attenuated.
Therefore, when the closing operation of the door portion 12 starts, the door portion 12 can be driven with a large driving force, and after the door portion 12 starts to move, the door portion 12 is driven while the driving force is attenuated. In other words, even if the door portion 12 stands by in a fully open state for a long period of time and a large static frictional force is generated due to adhesion of oil and fat, and the resistance increases, the closing operation of the door portion 12 can be reliably performed when the closing operation of the door portion 12 starts. After the closing operation of the door portion 12 is started, the closing speed of the door portion 12 is suppressed to a predetermined speed or less, and the closing operation of the door portion 12 is continued while maintaining a safe speed. There is no damage to the mechanism and no danger to passers-by. In addition, the gate can be automatically closed even when the commercial power supply is lost, and special equipment such as compressed gas is not required, so maintenance is simple.

Alternatively, a first auxiliary weight 74 is hooked on the upper surface of the main weight 72 connected to the transmission mechanism 20, and a second auxiliary weight 74 is hooked on the upper surface of the first auxiliary weight 74. By hooking the n+1th weight 74 on the upper surface of the weight 74, all the weights may be connected to the transmission mechanism 20 and connected to each other in the vertical direction. This configuration has the advantage of eliminating the need for a connecting member.

It should be noted that guide rails (not shown) are provided around the main weight 72 and the one or more auxiliary weights 74 to assist the descent path when the main weight 72 and the one or more auxiliary weights 74 are lowered. preferable.
The guide rail prevents the connection (hooking) between the main weight 72 waiting at the upper limit position and one or more auxiliary weights 74 from being unintentionally released due to an earthquake or the like. It stabilizes the lowering motion of one or more auxiliary weights 74 .

(Transmission mechanism of drive unit)
The transmission mechanism 20 of the driving section 18 transmits the gravity caused by the total mass of the main weight 72 and the auxiliary weight 74 to the door section 12 .

The transmission mechanism 20 includes a weight linear member 200, two fixed pulleys 210 and 212 around which the weight linear member 200 is wound, and two moving pulleys 220 around which the weight linear member 200 is wound. A moving pulley 222, a drum 230 around which the weight linear member 200 is wound, a door linear member 240 wound around the drum 230 and extending from the drum 230 and connected to the door portion 12, and a door linear member 240. It has three fixed pulleys 250 , 252 and 254 that wind around, and a pair of front side support member 260 and back side support member 262 .

Each of the pair of front side support member 260 and back side support member 262 has a substantially inverted L shape when viewed from the front. One front side support member 260 is arranged flush and perpendicular to the front side portion 102 a of the guide 102 , and the other rear side support member 262 is arranged flush and perpendicular to the rear side portion 102 b of the guide 102 . , and both are opposed to each other with a dimension equal to the width of the guide 102 (the width in the sea and land direction).

The drum 230 is rotatably attached to a drum rotating shaft 232 that spans between the near side support member 260 and the far side support member 262 at an upper substantially central position.

The two fixed pulleys 210 and 212 are arranged side by side with a fixed pulley rotating shaft 211 that spans between the front side support member 260 and the rear side support member 262 on the upper and open side. rotatably mounted.

The fixed pulley 250 is rotatably attached to a fixed pulley rotating shaft 251 that spans between the near side support member 260 and the far side support member 262 below the drum 230 and at a substantially open side position.

The fixed pulley 252 is freely rotatable on a fixed pulley rotating shaft 253 that is bridged between the near side support member 260 and the far side support member 262, below the drum 230, slightly above the fixed pulley 250 and on the substantially closing side. installed. The fixed pulley 252 is located vertically between the position of the drum 230 and the position of the fixed pulley 250 .

The fixed pulley 254 is rotatably attached to a fixed pulley rotary shaft 255 that spans between the front side support portion and the rear side support portion of a support member 264 fixed to the closing side end of the guide 102 . It is

The two movable pulleys 220 and 222 are protruded from a connecting portion 73 provided on the upper surface of the main weight 72, and are arranged side by side and rotatably mounted on the same axis as the movable pulley rotating shaft 221 extending in the sea and land direction. It is

The axial direction of the drum rotary shaft 232, the axial direction of the fixed pulley rotary shaft 211, the axial direction of the fixed pulley rotary shaft 251, the axial direction of the fixed pulley rotary shaft 253, the axial direction of the fixed pulley rotary shaft 255, and the axial direction of the movable pulley rotary shaft 221 The axial direction is the land-sea direction, and is substantially perpendicular to the pair of front side support member 260 and back side support member 262 .

One end portion 200a of the weight linear member 200 is connected to the drum 230, and the weight linear member 200 is wound a plurality of times at a position on the inner side of the outer peripheral surface of the drum 230 to form a fixed pulley 212, a movable pulley 222, a fixed pulley 210, and a fixed pulley 210. The movable pulley 220 is wound in order, and the other end 200 b is connected to the anchor shaft 257 .

The anchor shaft 257 is positioned between the drum rotation shaft 232 and the fixed pulley rotation shaft 211 and spans between the front side support member 260 and the back side support member 262 .

A pair of movable pulleys 220 and the main weight 72 and the auxiliary weight 74 connected to the movable pulley 222 appear to be suspended by four weight linear members 200 . Therefore, the stroke of the moving pulley rotating shaft 221, in other words, the movement stroke of the main weight 72 and the auxiliary weight 74, the stroke of the door linear member 240 wound around the drum 230, in other words, the movement stroke of the door portion 12 four times. That is, the moving distance of the main weight 72 and the auxiliary weight 74 is one quarter of the moving distance of the door portion 12, and the size of the drive portion 18 can be reduced. In addition, in order to reliably move the door portion 12 when the door portion 12 is closed during tide protection, the gravity caused by the total mass of the main weight 72 and the auxiliary weight 74 must be the initial movement resistance of the door portion 12 ( The main weight 72 and the auxiliary weight 74 are arranged so that the magnitude of the force exceeds the magnitude of the force obtained by multiplying the apparent number of weight linear members 200 (4 in the case of the present embodiment) by the maximum static friction force. It is preferable to set the total mass of Here, the initial movement resistance force (maximum static friction force) of the door portion 12 includes the resistance force due to adherence of oil to various mechanisms of the door portion 12 and the driving portion 18 . The mass of the main weight 72 is determined by the rolling friction between the wheels 110a and 110b of the door portion 12 and the rails 130a and 130b, and the sliding friction between the watertight rubber provided at the bottom of the door portion 12 and the landing surface. It is preferable that the weight force is set so as to correspond to the force obtained by multiplying the apparent number of the weight linear members 200 by the force that resists .

In a normal state in which the door portion 12 is open, the weight linear member 200 is wound around the outer peripheral surface of the drum 230 with the maximum number of windings, and the main weight 72 and the auxiliary weight 74 are at the upper limit in the height direction. It is set to be lifted to the position and wait.

One end portion 240a of the door linear member 240 is connected to one of the door linear member hooks 84 formed on the upper surface 16c of the door portion supporting member 16 of the door portion 12, and the door linear member 240 is positioned at the lower stage. It is wound around a pulley 250, wound on the front side of the outer peripheral surface of the drum 230 positioned at the upper stage, and wound around a fixed pulley 252 positioned at the middle stage. Further, the door linear member 240 passes along the guide 102 toward the closing side above the guide 102, is wound around a fixed pulley 254 positioned at the end of the guide 102, and then reverses its direction. , and passes along the guide 102 toward the open side at the central position inside the guide 102 . The other end 240 b of the door linear member 240 is connected to the other door linear member hook 86 formed on the upper surface 16 c of the door support member 16 of the door 12 .

With the configuration of the door linear member 240 and the drum 230 as described above, the degree of freedom in the connection method between the drive section 18 and the door section 12 is increased. Further, for example, the structure is simpler and the cost is lower than the structure using a rack and a pinion gear. Since resistance is generated between the door linear member 240 and the drum 230, the door portion 12 can continue the closing operation while maintaining a safe speed. The door linear member 240 has one end 240a and the other end 240b connected to the open side of the door 12 so as to go around the door 12 above. Therefore, when the door portion 12 is opened, it is moved to the open side by rotating the drum 230 clockwise, and then stands by at the open position. is configured to reach the closed position after being moved to the The door linear member 240 is endless through the door portion 12, and can open and close the door portion 12 according to the rotation direction of the drum 230 without using a rack and a pinion gear. That is, the door portion 12 can be moved in both the opening side and the closing side.

In addition, by using the movable pulley in the transmission mechanism 20, while the moving distance of the main weight 72 and the auxiliary weight 74 in the locked state is reduced compared to the moving distance of the door portion 12, the main weight 72 and the locked state are reduced. The force of gravity due to the total mass of the auxiliary weights 74 at , is transmitted to the door portion 12 .

(locking mechanism of drive unit)
The locking mechanism 30 of the drive section 18 is for manually or electrically moving the door section 12 to the open position on the embankment 1 side and locking it.

The locking mechanism 30 is connected to an electric motor 300 , an electromagnetic clutch 302 , a speed reducer 304 , a manual handle 306 , a screw brake 308 , and the transmission mechanism 20 to hold the main weight 72 and the auxiliary weight 74 and the door portion 12 . It has a disc brake 310 which is a locking brake for locking and a limit switch 312 .

The electric motor 300 is a motor with a brake and is connected to a rotary shaft 304a extending from a speed reducer 304 via an electromagnetic clutch 302. As shown in FIG. Electric motor 300 is connected to transmission mechanism 20 via electromagnetic clutch 302 and speed reducer 304 . The electric motor 300 and the electromagnetic clutch 302 are controlled by a control device 90 that is connected to a limit switch 312 and will be described later.

The electromagnetic clutch 302 is connected to the transmission mechanism 20 via a reduction gear 304 and controls connection between the electric motor 300 and the transmission mechanism 20 .

The speed reducer 304 is connected to the transmission mechanism 20 . The speed reducer 304 is set so that the high-speed rotation of the electric motor 300 is reduced so that the rotation speed of the drum 230 of the transmission mechanism 20 becomes the optimum rotation speed. On the other hand, the speed reducer 304 amplifies the rotational moment applied to the transmission mechanism 20 by the manual handle 306, and drives the door portion 12 having a large mass, the main weight 72 and the auxiliary weight 74 with the force of the human arm. enable In addition, the rotation speed of the fan brake 400, which is a speed control mechanism 40 to be described later, is increased from the rotation speed of the drum. The speed reducer 304 has a rotary shaft 304a extending in the same direction as the opening/closing direction (horizontal direction) of the door portion 12 to both the opening side and the closing side. The rotary shaft 304a is connected to the electromagnetic clutch 304 and the electric motor 300 on the open side, and is connected to the rotor 310a and the fan brake 400, which will be described later, on the closed side. Furthermore, a limit switch 312 is connected to the speed reducer 304 via a chain sprocket 314 , a roller chain 316 and a chain sprocket 318 .

The disc brake 310 is connected to the speed reducer 304 by sharing a rotating shaft 304 a extending from the speed reducer 304 with the fan brake 400 described later. The disc brake 310 is connected to the transmission mechanism 20 via the speed reducer 304 and locks the main weight 72 , the auxiliary weight 74 and the door portion 12 . The disc brake 310 locks the main weight 72, the auxiliary weight 74, and the door portion 12 by pressing the rotor 310a with a brake pad (not shown). The disc brake 310 is configured to be locked or unlocked by a manual switch 311, which will be described later.

A limit switch 312 detects the number of revolutions of the drum 230 via the speed reducer 304 . As a result, the control device 900 connected to the limit switch 312 detects that the horizontal sliding door 14 has reached the open position or the closed position, and disconnects the electric motor 300 from the transmission mechanism 20 by the electromagnetic clutch 302. Power supply to the electric motor 300 is cut off.

During normal operation when the door portion 12 is opened, the main weight 72 and the auxiliary weight 74 are sequentially lifted by the electric motor 300 or the manual handle 306 via the transmission mechanism 20 against the gravity of the weights. When the door portion 12 moves to the open position, the brake pads of the disk brake 310, which is a brake for locking, are pressed against the rotor 310a so that the main weight 72, the auxiliary weight 74, and the door portion 12 are kept in a locked state. It is configured.

When the door portion 12 is closed during flood protection, the brake pad of the disk brake 310 serving as a locking brake is manually or electrically operated to release the pressure contact of the rotor 310a, and the main weight 72, the auxiliary weight 74, and the door portion 12 are released. is configured to release the locked state of the When the locked state is released, gravity due to the total mass of the main weight 72 and the auxiliary weight 74 rotates the drum 230 counterclockwise.

When the drum 230 rotates counterclockwise, the weight linear member 200 wound around the drum 230 is pulled out, and the main weight 72 and the auxiliary weight 74 begin to descend. At the same time, the door linear member 240 wound around the drum 230 also moves from one fixed pulley 252 toward the other fixed pulley 250, so that the door portion 12 also moves from one bank 1 side to the other bank. 3 to close the opening 2. Therefore, according to the tide gate 10, the gate can be automatically closed even when the commercial power supply is lost, and special facilities such as compressed gas are not required, so maintenance is simple.

At this time, if the gravity caused by the total mass of the main weight 72 and the auxiliary weight 74 or the gravity caused by the mass of the main weight 72 is excessive compared to the rolling friction of the door portion 12 and the sliding resistance of the watertight rubber. , even if the door portion 12 is about to accelerate excessively, the speed control function of the fan brake 400 operates to control the change in the speed of the door portion 12 via the transmission mechanism 20 . As a result, the door portion 12 can continue to close at a safe speed. Then, the closing operation can be completed without causing damage to various mechanisms of the door portion 12 and without harming passers-by and the like.

The unlocking of the disc brake 310 is manually operated by the manual switch 311, or electrically operated by the control device 900, remotely operated from the smartphone 932 or the like, or based on the reception of information from the nationwide instantaneous warning system 930. It is done by automatic operation.

FIG. 9 is a cross-sectional view of the manual handle, screw brake and disconnection mechanism of the tide gate according to this embodiment.

As shown in FIG. 9, the manual handle 306 is connectable to the transmission mechanism 20 via a screw brake 308 and a speed reducer 304 . The manual handle 306 has an integral structure incorporating a screw brake 308 , and has a disconnecting mechanism 506 for disconnecting the transmission mechanism 20 together with the screw brake 308 . When the door portion 12 of the tide gate 10 is electrically opened and closed, the manual handle 306 and the screw brake 308 are disconnected from the transmission mechanism 20 by the disconnection mechanism 506 .

The manual handle 306 includes a handle body 500 provided with a grip portion 502, a rectangular handle base 508, four handle guide shafts 520 and 522 and 524 and 526, and four handle guide shafts. 530 , handle guide 532 , handle guide 534 , handle guide 536 , handle center shaft 550 , handle center shaft stopper 552 , and handle center bearing 556 .

As shown in FIG. 11, a rectangular handle base 508 has a handle central shaft hole 510 formed in the center. As shown in FIG. 9 , a handle center bearing 556 having a shaft coaxial with the handle center shaft hole 510 is provided in the central portion of the upper surface of the handle base 508 . The handle center shaft 550 is rotatably inserted through the handle center shaft hole 510 and the handle center bearing 556 .
One end 550 a of the handle central shaft 550 is fixed to the central portion 504 of the handle body 500 . The handle central shaft 550 has a screw thread formed on the outer peripheral surface of the other end 550b, and a screw brake central shaft hole 554 is formed in the central portion of the end face.

A handle guide 530, a handle guide 532, a handle guide 534, and a handle guide 536 are fitted into the four corners of the rectangular handle base 508, respectively.

The handle guide shaft 520 is movably inserted through the handle guide 530, the handle guide shaft 522 is movably inserted through the handle guide 532, the handle guide shaft 524 is movably inserted through the handle guide 534, and the handle guide shaft 524 is movably inserted through the handle guide 534. The shaft 526 is movably inserted through the handle guide 536 . The legs of the handle guide shafts 520 and 522 and the handle guide shafts 524 and 526 are fixed to the outer surface of the speed reducer 304 .

The handle base 508 vertically extends between an upper stopper 538 provided at the head of each of the handle guide shafts 520, 522, 524, and 526 and a lower stopper 540 provided in the middle. can move.

A screw brake 308 is connected between the manual handle 306 and the reduction gear 304 and controls the connection between the manual handle 30 and the transmission mechanism 20 according to the rotation direction of the manual handle 306 . The screw brake 308 connects the manual handle to the transmission mechanism 20 by rotating the manual handle 306 in the direction to open the door 12 (clockwise), and manually rotates the manual handle in the direction to close the door 12 (counterclockwise). Rotation of the handle 306 is configured to decouple the manual handle 306 from the transmission mechanism 20 .

The screw brake 308 includes a screw brake central shaft 600 , a pawl gear 610 , a right-handed clutch pawl nut 620 , brake discs 630 and 632 , brake pawls 640 and 642 , and a clutch pawl 650 . have.

The pawl gear 610 is arranged between the handle central shaft stopper 552 so that the brake disc 630 can be pressed against it, and is screwed to a thread formed on the outer peripheral surface of the other end 550b of the handle central shaft 550. A brake disc 632 is arranged in a press contactable state between the clutch pawl nut 620 and the clutch pawl nut 620 .

One end 600 a of the screw brake center shaft 600 is inserted into a screw brake center shaft hole 554 formed in the other end 550 b of the handle center shaft 550 . One end 600a of the screw brake central shaft 600 can extend and retract in and out of the screw brake central shaft 600 . Therefore, the handle center shaft 550 of the manual handle 306 is opposed to the reduction gear 304 together with the handle center shaft stopper 552, the handle base 508, the pawl gear 610 and the clutch pawl nut 620 by the separating mechanism 506 and the screw brake center shaft 600, which will be described later. side, the manual handle 306 can be in a pulled position (hereinafter also referred to as a "disengaged position"), while the manual handle 306 moves to the speed reducer 304 side, and the clutch pawl A position where 650 and clutch pawl nut 620 mesh (hereinafter also referred to as "engagement position") is also possible.

The screw brake central shaft 600 has a clutch pawl 650 attached to the other end 600 b formed with a parallel key 660 and is connected to the rotating shaft of the speed reducer 304 . During electric operation, the clutch pawl 650 and the clutch pawl nut 620 are separated by the separating mechanism 506 so that the manual handle 306 does not idle.

The separating mechanism 506 includes a grip portion 502, a handle body 500, a handle center shaft 550, a handle center bearing 556, a screw brake center shaft 600, a handle center shaft stopper 552, a pawl gear 610, and a clutch pawl nut. 620 , handle base 508 , brake claws 640 and 642 , upper stopper 538 and lower stopper 540 . By gripping the grip portion 502 or the handle body 500 by hand and moving the handle body 500 to the disengaged position on the side opposite to the speed reducer 304 or the engagement position on the side of the speed reducer 304, the screw brake center shaft 600 expands and contracts. Then, the handle center shaft 550 into which the screw brake center shaft 600 is inserted moves away from or approaches the speed reducer 304 . As a result, a handle center shaft stopper 552 integrally connected to the handle center shaft 550, a clutch pawl nut 620 screwed to the vicinity of the other end 550b of the handle center shaft 550, the handle center shaft stopper 552 and the clutch pawl nut 620, the handle center bearing 556, the handle base 508 connected to the handle center bearing 556, and the brake pawls 640 and 642 connected to the handle base 508 are integral. moves away from or approaches the speed reducer 304 . Then, the pawl of the clutch pawl nut 620 constituting the screw brake 308 and the pawl of the clutch pawl 650 connected to the speed reducer are disengaged or meshed.

That is, by having the disengagement mechanism 506, the manual handle 306 can be moved to the disengaged position and decoupled from the transmission mechanism along with the screw brake 308, while the manual handle 306 can be moved to the engaged position and screwed. It is connected to the transmission mechanism 20 together with the brake.

FIG. 10 is a cross-sectional view of the manual handle, the screw brake, and the separation mechanism during the manual opening operation of the tide gate according to this embodiment. FIG. 11 is a schematic diagram for explaining the operation of the pawl gear during the manual opening operation of the tide gate according to the present embodiment.

During the manual release operation, the manual handle 306 is manually moved to the engagement position. The screw brake 308 connects the manual handle 306 to the transmission mechanism 20 by rotating the manual handle 306 in the direction to open the door 12 . Specifically, the manual handle 306 is pushed in and rotated to the right (clockwise) while the screw brake center shaft 600 is contracted, and the clutch pawl nut 620 and the clutch pawl 650 of the screw brake 308 are engaged. Here, right rotation (clockwise rotation) means clockwise rotation when the speed reducer 304 side is viewed from the manual handle 306 side. The same shall apply hereinafter. The same applies to left rotation (counterclockwise rotation).

When the manual handle 306 is pushed in and rotated to the right, the clutch pawl nut 620 moves toward the pawl gear 610 due to the action of the threads between the right-hand clutch pawl nut 620 and the end 550b of the handle center shaft. . As a result, while being pressed by the clutch pawl nut 620, the pawl gear 610 rotates clockwise without being locked by the brake pawl 640 and the brake pawl 642, and moves toward the handle center shaft stopper 552. It is sandwiched and locked between the claw nut 620 and the handle center shaft stopper 552 via the brake disc 630 and the brake disc 632 .

By being locked, the handle center shaft 550, the clutch pawl nut 620, the pawl gear 610, and the handle center shaft stopper 552 are integrally fixed, and the rotational force input from the grip portion 502 of the handle body 500. is output to speed reducer 304 via handle center shaft 550 , clutch pawl nut 620 and clutch pawl 650 .

Therefore, the manual handle 306 is connected to the transmission mechanism 20 . Then, when the manual handle 306 is rotated to the right, the drum 230 is rotated to the right against the gravity caused by the total mass of the main weight 72 and the auxiliary weight 74, and the weight linear member 200 moves toward the outer periphery of the drum 230. Wrapped around the surface, the main weight 72 and the auxiliary weight 74 are lifted. At the same time, the door portion 12 is opened.

FIG. 12 is a cross-sectional view of the manual handle, the screw brake and the separation mechanism during the manual closing operation of the tide gate according to this embodiment.

During the manual closing operation, the manual handle 306 is manually moved to the engaged position. A screw brake 308 decouples the manual handle 306 from the transmission mechanism 20 by rotating the manual handle 306 in a direction that closes the door 12 . Specifically, the manual handle 306 is rotated to the left (counterclockwise) in a state in which the screw brake center shaft 600 is compressed by being pushed in, and the clutch pawl nut 620 and the clutch pawl 650 of the screw brake 308 are engaged. be.

When the manual handle 306 is pushed in and rotated to the left, the clutch pawl nut 620 slightly moves toward the speed reducer 304 . At this time, the pawl gear 610 is stopped by the brake pawl 640 and the brake pawl 642 and does not rotate to the left. When the clutch pawl nut 620 is separated from the pawl gear 610, the lock between the clutch pawl nut 620 of the manual handle 306, the pawl gear 610 and the handle center shaft stopper 552 is released. This disconnects the manual handle 306 from the transmission mechanism 20 .

Gravity caused by the mass of the main weight 72 or the total mass of the main weight 72 and the auxiliary weight 74 is transmitted from the speed reducer 304 via the transmission mechanism 20 in a direction to rotate the clutch pawl 650 clockwise. , and the clutch pawl nut 620 meshing with the clutch pawl 650 rotates to the right. As a result, the clutch pawl nut 620 moves toward the pawl gear 610 again due to the action of the thread between the right-handed clutch pawl nut 620 and the screw brake center shaft 600 . Then, the clutch pawl nut 620, the pawl gear 610, and the handle center shaft stopper 552 are integrally fixed again. That is, due to the action of the screw brake 308, the main weight 72, the auxiliary weight 74 and the door portion 12 are automatically moved by the counterclockwise rotation of the manual handle 306 to release the connection between the manual handle 306 and the transmission mechanism 20. Then, the manual handle 306 and the transmission mechanism 20 are connected again by the action of the screw brake 308 caused by this movement, and the main weight 72, the auxiliary weight 74 and the door portion 12 are locked.

Thereafter, when the manual handle 306 is further rotated to the left, the weight linear member 200 is unwound from the outer peripheral surface of the drum 230 by the amount of the rotation of the manual handle 306, and the main weight 72 and the auxiliary weight 74 are lowered. As a result, the drum 230 rotates and the door portion 12 is closed.

As described above, the manual handle 306 can be manually operated by pushing the manual handle 306 to the engagement position by the separation mechanism 506, and pulled to the disengagement position. When the manual handle 306 is in the disengaged position, when the door portion 12 is opened by electric operation, or when the door portion 12 is closed by gravity caused by the total mass of the main weight 72 and one or more auxiliary weights 74, Manual handle 306 does not idle. That is, the manual handle 306 can safely open and close the door section 12 by the screw brake 308 and the separation mechanism 506 whether the manual handle 306 is used or not, and the main Weights 72 and auxiliary weights 74 can be raised and lowered.

That is, according to the tide gate 10 having the locking mechanism 30, the door portion 12 can be manually or electrically moved to the open position and locked at the open position. Even when the locked state of the door portion 12 is electrically released and the door portion 12 is closed using the manual handle 306, the door portion 12 can be safely closed.

(Speed control mechanism of drive unit)
A speed control mechanism 40 of the drive unit 18 is connected to the transmission mechanism 20 to control changes in the moving speed of the door unit 12 .

The speed control mechanism 40 has a fan brake 400 . The fan brake 400 has a fan 402 and a damper (not shown). The fan 402 is a member that produces braking force by air resistance, and the damper is a member that adjusts the amount of air flowing into the fan 402 . The fan 402 is connected to a rotating shaft 304a extending from the reduction gear 304 to the closing side in the left-right direction. Accordingly, the fan brake 400 is connected to the drum rotating shaft 232 of the drum 230 of the transmission mechanism 20 via the reduction gear 304 . At this time, the rotational speed of the fan 402 is increased from the rotational speed of the drum 230 through the reducer 304 .

When the door portion 12 is closed during tide protection, the fan brake 400 is configured to suppress a change in the moving speed of the door portion 12 after the door portion 12 has started to move. Specifically, the braking force of the fan 402 is adjusted by opening and closing the damper of the fan brake 400, and the rotation speed of the drum rotating shaft 232 of the drum 230 is adjusted. Therefore, even if the mass of the main weight 72 or the total mass of the main weight 72 and the auxiliary weight 74 is excessive, the fan brake 400 allows the door portion 12 to maintain a safe moving speed and continue the closing operation. can. Note that the speed control mechanism 40 may be a centrifugal brake, a hydraulic brake, or the like.

(Control system for tide gates)
FIG. 14 is a block diagram showing an example of a control system for the tide gate 10. As shown in FIG. The control device 900 has an operating circuit/communication device 902 , a battery 904 , a battery box 906 , a charging device 908 , switches S 1 and S 2 and switches S 3 and S 4 , and a thermistor 910 . The operating circuit/communication device 902 is electrically connected to the battery 904 .

The tide gate 10 is configured so that a commercial AC 100V power source, a portable generator 920 and a solar panel 922 can be used as power sources. In addition, a commercial AC 100V power source and a portable generator 920 are each electrically connected to the battery 904 via a switch S1 to charge the battery 904 . Solar panel 922 is also electrically connected to battery 904 via battery box 906 and charging 908 to charge battery 904 .

A battery 904 supplies power to the operating circuit/communication device 902 . When power is supplied from the battery 904 to the operation circuit/communication device 902 , the control device 900 controls the main weight 72 , the auxiliary weight 74 and the door portion 12 by the disk brake 310 according to the operation circuit/communication device 902 . The locking state is maintained or the locking state is released.

Therefore, the control device 900 has the main weight 72, the auxiliary weight 74, and the battery 904 for maintaining the locked state of the door 12 even when the commercial AC 100V power source is lost, and is capable of remote control or nationwide instantaneous alarm. The locking state of the main weight 72, one or more auxiliary weights 74, and the door portion 12 can be released in response to information, bulletins, warnings, or warnings from the system.

In addition, the tide gate 10 uses a signal from the nationwide instantaneous warning system (J-alert) 930 and a wireless signal from a mobile phone (smartphone) or mobile tablet 932 as a trigger signal for releasing the locking mechanism 30 of the drive unit 18. , a wired signal or a wireless signal from a remote controller 934 or the like. Signals from the national instant warning system 930 are automatically received by the operating circuitry and communications device 902 .

In addition, the tide gate 10 can use the manual handle 306, the electric motor 300, the electromagnetic clutch 302 for the electric motor, and the disc brake 310 with the manual opener 311 as means for closing the door 12. is configured as The electric motor 300 and electromagnetic clutch 302 are electrically connected to a commercial AC 100V power source and a portable generator 920 via a thermistor 910 and switches S1, S2 and S3. Disc brake 310 with manual release 311 is electrically connected to battery 904 via switch S4.

Therefore, when the locking mechanism 30 automatically receives information, bulletins, advisories, or warnings from the national instantaneous warning system 930, it utilizes the electricity charged in the battery 904 to activate the locking brake disk. A control device 900 is provided that can automatically release the locked state of the main weight 72 , the auxiliary weight 74 and the door portion 12 by releasing the brake 310 . As a result, the door portion 12 can automatically start closing operation without the need for an operation for closing the door portion 12 by a person when the tide is off.

In addition, even when the commercial power supply is lost in the event of a disaster such as an earthquake, the relatively small capacity battery 904 maintains the locking state of the main weight 72 and the auxiliary weight 74 and the door portion 12 by the locking mechanism 30. In addition, the closing operation can be initiated remotely or automatically during tides without the need for a person to approach the tide gate 10 to operate the tide gate 10 .

In addition, the tide gate 10 is configured so that a camera 950, a revolving light/chime 952, a pinch prevention sensor 954, and an obstacle sensor 956 can be used as safety devices. Camera 950 , revolving light/chime 952 , pinch prevention sensor 954 , and obstacle sensor 956 are each electrically connected to operation circuit/communication device 902 . As a result, danger such as evacuating people being caught in the sideways sliding door 14 can be avoided.

In the above-described embodiments, the main weight 72 and one or more auxiliary weights 74 (plurality of weights) can be separately used as independent drive mechanisms for various doors, gates, gates, and the like. In addition to being used for the tide gate of the embodiment described above, it can be used for, for example, a rotary gate. In other words, the configuration consisting of the main weight 72 and one or more auxiliary weights 74 in the present invention is a drive mechanism for opening and closing a door or the like, and has a plurality of weights interconnected in the vertical direction, and has a driving mechanism. At the start, all the weights are driven using their weights, and after the object to be driven begins to move, the connection of the plurality of weights is sequentially released from the vertically lower side, and the vertically uppermost weight and It is established as a driving mechanism in which the weight connected to the weight is driven using its weight. The drive mechanism is included in the drive section 18 of the embodiment described above.
According to the drive mechanism, the movement of the object to be driven can be reliably started when the object to be driven starts to be driven, and the moving speed of the object to be driven is suppressed to a predetermined speed or less after the object to be driven starts to move. , the driven object keeps moving at a safe speed.

As described above, the embodiments of the present invention are disclosed in the above description, but the present invention is not limited thereto.
That is, without departing from the scope of the technical idea and purpose of the present invention, various modifications can be made to the above-described embodiments in terms of mechanism, shape, material, quantity, position, arrangement, etc. and they are included in the present invention.

Reference Signs List 1, 3 embankment 1a, 3a upper surface of embankment 2 opening formed between embankments 10 tide gate 12 door 12
14 Side-pull door 16 Door supporting member 18 Driving unit 20 Transmission mechanism 30 Locking mechanism 40 Speed control mechanism 72 Main weight 73 Connecting part 74 Auxiliary weight 76 Connecting member 84 Hook for linear member for one door 86 For other door Linear member hooks 100a, 100b, 100c, 100d Guide supporting member 101 Arm of guide supporting member 102 Guide 102a Front side of guide 102b Back side of guide 104a, 104b, 104c, 104d, 104e, 104f guide rollers 110a, 110b, 110c, 110d wheels 114a, 114b roller bearings 116 axles 130a, 130b rails 200 linear members for weights 210, 212 fixed pulleys 211 fixed pulley rotating shafts 220, 222 moving pulleys 221 moving pulley rotating shafts 230 drums 232 Drum rotating shaft 240 Door linear member 240a One end of door linear member 240b The other end of door linear member 250, 252, 254 Fixed pulley 251, 253, 255 Fixed pulley rotary shaft 257 Anchor Shaft 260 Front side support member 262 Back side support member 264 Support member 300 Electric motor 302 Electromagnetic clutch 304 Reduction gear 304a Rotating shaft of reduction gear 306 Manual handle 308 Screw brake 310 Disk brake (locking brake)
310a rotor 311 manual switch 312 limit switch 314, 318 chain sprocket 316 roller chain 400 fan brake 402 fan 500 handle body 502 grip portion 504 central portion 506 separating mechanism 508 handle base 510 hole for handle center shaft 520, 522, 524 , 526 Handle guide shaft 530, 532, 534, 536 Handle guide 538 Upper stopper 540 Lower stopper 550 Handle center shaft 550a One end of handle center shaft 550b The other end of handle center shaft 552 Handle center shaft stopper 554 Screw brake Central shaft hole 556 Handle center bearing 600 Screw brake central shaft 600a One end of the screw brake central shaft 600b The other end of the screw brake central shaft 610 Pawl gear 620 Clutch pawl nut 630, 632 Brake disc 640, 642 Brake pawl 650 Clutch pawl 660 Parallel key 700 Upper end opening of connecting member 702 Lower end opening of connecting member 760 Hooking portion of connecting member 762 Support portion for auxiliary weight 900 Control device 902 Operation circuit/communication device 904 Battery 906 Battery box 908 Charging 910 Thermistor 920 Portable generator 922 Solar panel 930 National instant warning system (J-alert)
932 Mobile phone (smartphone) or mobile tablet 934 Remote controller 950 Camera 952 Revolving light/chime 954 Interference prevention sensor 956 Obstacle sensor S1, S2, S3, S4 Switch

Claims (6)

When the door portion is locked at the open position and the door portion is closed, the locked state of the door portion is released, and the door portion is automatically driven in the closing direction by the gravity caused by the mass of the weight. a drive mechanism configured to :
a control device for controlling the drive mechanism to open and close the door;
is composed of
The drive mechanism includes a main weight and an auxiliary weight as the weights,
a connecting member that enables connection between the main weight and the auxiliary weight;
one or more auxiliary weights are connected vertically below the main weight located vertically uppermost, with a space therebetween;
At the start of driving, all the weights are driven using their weights,
After the door portion has started to move, the connection of the plurality of weights is released from the vertically lower side, and the weight located at the uppermost position in the vertical direction is configured to be driven using its weight. drive mechanism control system. the control device includes a battery for maintaining the locked state of the weight and the door;
The battery is controlled to release the locked state of the weight and the door in accordance with information, bulletin, advisory, or warning from a remote operation or a nationwide instantaneous warning system. A control system for a drive mechanism according to claim 1 . 3. The drive mechanism control system of claim 2 , wherein the battery is charged by at least one of a mains power source, a generator, and a solar panel. The control device is
4. Any one of claims 1 to 3, adapted to receive a signal from a national instant warning system, a wireless signal from a mobile phone or mobile tablet, and a wired or wireless signal from a remote control or the like. A control system for the drive mechanism according to . A camera, a revolving light/chime, a pinch prevention sensor, and an obstacle sensor are configured to be usable, and are configured to function as a safety device capable of avoiding evacuating people from being caught in the door section. 5. The drive mechanism control system according to any one of claims 1 to 4, wherein the control system comprises: The drive mechanism includes a main weight and an auxiliary weight as the weights,
a connecting member that enables connection between the main weight and the auxiliary weight;
one or more auxiliary weights are connected vertically below the main weight located vertically uppermost, with a space therebetween;
At the start of driving, all the weights are driven using their weights,
After the door portion has started to move, the hooking of the main weight and the one or more auxiliary weights is sequentially released, the connection of the plurality of weights is sequentially released from the vertically lower side, and the vertically uppermost one of the weights is sequentially released. 6. The drive mechanism control system according to claim 1, wherein the weight and the weight connected to the weight are configured to be driven using the weight.

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