JP6848023B2 - Drive mechanism - Google Patents

Description

The present invention relates to a drive mechanism that can be used to open and close various doors, gates or gates.

Generally, in a horizontal sliding door type tide gate, in the case of a small tide gate, an opening / closing operation is manually performed. In the case of medium and large tide gates, the opening and closing operation is performed electrically, and the opening and closing operation is manually performed as an aid.

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

Japanese Unexamined Patent Publication No. 2013-144919

However, since the tide gate described in Patent Document 1 requires an electric control device when the gate is closed, there is a problem that the gate cannot be closed when the power supply is lost in an emergency such as an earthquake. In addition, when the coupure was kept in a fully open state for a long period of time, a large static frictional force was generated due to the adhesion of fats and oils and the resistance increased, so that the coupure could not be closed. On the other hand, in order to ensure that the closing operation is performed, it is necessary to drive the coupure with a large driving force, but if the closing operation is started with a large driving force, the closing speed of the coupure will increase after the closing operation starts. There was a risk of becoming excessive. Even if the coupure closing deceleration point detection sensor or the limit switch can detect that the coupure is about to close completely, if the door closing speed is excessive, deceleration cannot be performed or deceleration can be performed. Even if it was not in time, there was a risk of damaging the gate mechanism or harming passers-by. Further, there is also a problem that the maintenance of the compressed gas is complicated.

The present invention has been made in view of the above problems, and even when the commercial power supply is lost, the drive can be automatically and safely and surely started to close the gate, and further, special features such as compressed gas can be used. The purpose is to provide a drive mechanism that does not require any equipment and is easy to maintain.

The drive mechanism according to the present invention is
A drive mechanism for opening and closing the door
Vertically below the main weights located vertically uppermost, one or more auxiliary weights at predetermined intervals are connected,
It has a connecting member capable of connecting the main weight and the auxiliary weight, and has a connecting member.
The connecting member is hooked on the main weight and stands by in a state of being lifted by the main weight.
At the start of driving, all the weights are driven by utilizing their weights.
After the driving object starts to move, the engagement between the main weight and one or more auxiliary weights is sequentially released, the connection of the plurality of the weights is sequentially released from the vertically lower side, and the vertically uppermost position is located. It is a drive machine in which a weight and a weight connected to the weight are driven by utilizing the weight thereof.
According to the drive mechanism according to the present invention.
At the start of driving, the driving object can be driven with a large driving force, and after the driving object starts to move, the driving object is driven while the driving force is attenuated.
Therefore, at the time when the driving target starts to be driven, the driving target can surely start moving, and after the driving target starts to move, the moving speed of the driving target is suppressed to a predetermined speed or less, and the driving target is driven. Objects keep moving at a safe speed.

According to the present invention, even when the commercial power supply is lost, the drive can be automatically and safely started and the gate can be closed, and no special equipment such as compressed gas is required, and maintenance is simple. A drive mechanism is obtained.

It is a front view of the opening state of the tide gate which concerns on embodiment of this invention. It is a top view of the open state of the tide gate which concerns on embodiment. It is sectional drawing of the tide gate which concerns on embodiment, and is the figure which was seen from the direction of the arrow of line III-III of FIG. It is a front view of the closed state of the tide gate according to the embodiment. It is a top view of the closed state of the tide gate according to the 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. It is a right side view of the locking mechanism, the transmission mechanism and the speed suppressing mechanism among the driving part of the tide gate which concerns on embodiment. It is sectional drawing of the manual handle of the tide gate, the screw brake and the separation mechanism which concerns on embodiment. It is sectional drawing of the manual handle, the screw brake and the separation mechanism at the time of the manual opening operation of the tide gate which concerns on embodiment. It is a schematic diagram for demonstrating the operation of the claw gear at the time of the manual opening operation of the tide gate which concerns on embodiment. It is sectional drawing of the manual handle, the screw brake and the separation mechanism at the time of the manual closing operation of the tide gate which concerns on embodiment. It is a schematic diagram which shows an example of the connection method of a main weight and one or more auxiliary weights. It is a block diagram which shows an example of the control system of the tide gate which concerns on embodiment.

Hereinafter, embodiments of the tide gate using the drive mechanism of the present invention will be described in detail with reference to the drawings.

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

The tide gate 10 according to the embodiment of the present invention is a horizontal sliding door type tide gate that opens and closes an opening 2 formed between the embankment 1 and the embankment 3. The tide gate 10 is located on the side of one of the embankments 1 when the gate is opened (hereinafter, also referred to as “normal time”) and maintains the open state of the door portion, and is also referred to as “tide prevention” when the gate is closed (hereinafter, also referred to as “tide prevention”). ), Proceed to the direction side of the other embankment 3, close the door portion, 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 back side (back side), the direction from the sea to the land is defined as the land-sea direction, and the tide gate 10 Opening 2
The side that moves when opening is defined as the open side (left side), and the side that moves when the tide gate 10 closes the opening 2 is defined as the closed side (right side). To use.

The tide gate 10 includes a door portion 12 and a drive unit 18 that opens and closes the door portion 12 in order to open and close the opening 2.

(Door of tide gate)
The door portion 12 includes a horizontal sliding door 14, a door portion support member 16, a guide 102, a pair of guide rollers 104a and a guide roller 104b, a pair of guide rollers 104c and a guide roller 104d, a pair of guide rollers 104e, and a pair of guide rollers 104e. Guide roller 104f and pair of wheels 1
10a and wheels 110b, a pair of wheels 110c and wheels 110d, and a pair of rails 13
It includes 0a, a rail 130b, and a watertight rubber (not shown).

The horizontal sliding door 14 has a rectangular parallelepiped shape, and the front side surface 14a of the horizontal sliding door 14 facing the land and sea direction.
And the back side surface 14b, and the upper surface 14c and the lower surface 14d facing the horizontal sliding door 14 in the height direction.
It has a left side surface 14e and a right side surface 14f facing the moving direction of the lateral sliding door 14. The length dimension of the horizontal sliding door 14 in the left-right direction is the opening 2 formed between the embankment 1 and the embankment 3.
The height dimension of the horizontal sliding door 14 is set to be substantially equal to the height of the embankment 1 and the height of the embankment 3. The horizontal sliding door 14 is formed of a steel material or the like so as to be strongly suitable for tide prevention.

The door portion support member 16 is attached to the left side surface 14e of the horizontal sliding door 14, that is, the side surface on the open side. The door portion support member 16 is attached so as to extend along the moving direction of the lateral sliding door 14 in a state where the substantially V shape is laid down. The door portion support member 16 has a front side surface 16a and a back side surface 16b facing the land-sea direction of the horizontal sliding door 14, and an upper surface 16c in the height direction.
On the upper surface 16c, one door linear member hook 84 is formed at a position on the open side, and the other door linear member hook 86 is formed at a closed side position.

The long guide 102 has a cross section that is U-shaped and rotated 90 degrees counterclockwise.
The long guide 102 is a guide support member 1 fixed to the upper surface 1a of one embankment 1 at equal intervals.
00a, guide support member 100b, guide support member 100c, and guide support member 10
By 0d, the upper surface 14c of the horizontal sliding door 14 extends from the horizontal sliding door 14 to the door portion support member 16.
And is arranged on the upper surface 16c of the door portion support member 16. As shown in FIG. 3, the long guide 102 includes a guide support member 100a, a guide support member 100b, and a guide support member 10.
The cross-sectional shapes of 0c and the guide support member 100d are substantially inverted L-shaped, and are fixed to the back surface of their long arms 101. The guide 102 whose cross section is U-shaped and rotated 90 degrees counterclockwise is arranged so that the side portion 102a on the front side is along the front side surface 14a of the horizontal sliding door 14, and the side portion 102b on the back side is lateral. It is arranged along the back side surface 14b of the sliding door 14.

The pair of guide rollers 104a and the guide rollers 104b are rotatably fixed at positions closer to the right side surface 14f of the upper surface 14c of the horizontal sliding door 14, respectively. Guide roller 104
a is arranged on the side of the front side surface 14a, the guide roller 104b is arranged on the side of the back side surface 14b, and the distance between the two is shorter than the thickness dimension of the horizontal sliding door 14 in the land and sea direction and is separated by a predetermined distance. ing. A door linear member 240, which will be described later, passes between the pair of guide rollers 104a and the guide rollers 104b. The guide roller 104a has a roller shaft extending in the height direction, and its outer peripheral surface is in contact with the inner surface of the side portion 102a on the front side of the guide 102. The guide roller 104b has a roller shaft extending in the height direction, and its outer peripheral surface is in contact with the inner surface of the side portion 102b on the inner side of the guide 102.

The pair of guide rollers 104c and guide rollers 104d are rotatably fixed at positions closer to the left side surface 14e of the upper surface 14c of the horizontal sliding door 14, respectively. Guide roller 104
c is arranged on the side of the front side surface 14a, the guide roller 104d is arranged on the side of the back side surface 14b, and the distance between the two is shorter than the thickness dimension of the horizontal sliding door 14 in the land and sea direction and is separated by a predetermined distance. ing. A door linear member 240 passes between the pair of guide rollers 104c and the guide rollers 104d. The guide roller 104c has a roller shaft extending in the height direction, and its outer peripheral surface is in contact with the inner surface of the side portion 102a on the front side of the guide 102.
In the guide roller 104d, the roller shaft extends in the height direction, and the outer peripheral surface thereof is the guide 10
It is in contact with the inner surface of the side portion 102b on the inner side of 2.

The pair of guide rollers 104e and guide rollers 104f are each a door support member 1.
It is rotatably fixed at a position on the left side of the upper surface 16c of No. 6. The guide roller 104e is arranged on the hand front surface 16a side of the door portion support member 16, and the guide roller 104f is the door portion support member 1
It is arranged on the back surface 16b side of No. 6, and the distance between the two is shorter than the thickness dimension of the horizontal sliding door 14 in the land-sea direction and is separated by a predetermined distance. A door linear member 240 passes between the pair of guide rollers 104e and the guide rollers 104f. The guide roller 104e has a roller shaft extending in the height direction, and its outer peripheral surface is a side portion 102 on the front side of the guide 102.
It is in contact with the inner surface of a. The guide roller 104f has a roller shaft extending in the height direction, and its outer peripheral surface is in contact with the inner surface of the side portion 102b on the inner side of the guide 102.

Therefore, the door portion 12 can move back and forth on the pair of linear rails 130a and the linear rails 130b according to the guide 102.

The pair of wheels 110a and 110b are rotatably attached to positions closer to the right side surface 14f of the lower surface 14d of the horizontal sliding door 14, respectively. The wheels 110a are arranged on the front side surface 14a side, the wheels 110b are arranged on the back side surface 14b side, and the wheels 110a are arranged apart from each other by the axle 116 by the distance between the pair of rails 130a and the rails 130b. The axle 116 was fixed to a position closer to the right side surface 14f of the lower right side surface 14a of the front side surface 14a of the horizontal sliding door 14 and a roller bearing 114a fixed to a position closer to the right side surface 14f of the lower side surface 14b of the horizontal sliding door 14. It is rotatably supported by a roller bearing 114b. The pair of wheels 110a and the wheels 110b move and move back and forth while rotating on the pair of rails 130a and 130b.

The pair of wheels 110c and the wheels 110d are rotatably attached to positions closer to the left side surface 14e of the lower surface 14d of the lateral sliding door 14, respectively. The wheels 110c are arranged on the front side surface 14a side, the wheels 110d are arranged on the back side surface 14b side, and the wheels 110c are arranged separated by a predetermined distance by the axle 116. The axle 116 was fixed to a position closer to the left side surface 14e of the lower left side surface 14a of the front side surface 14a of the horizontal sliding door 14 and a roller bearing 114a fixed to a position closer to the left side surface 14e of the lower side surface 14b of the horizontal sliding door 14. It is rotatably supported by a roller bearing 114b. The pair of wheels 110a and the pair of wheels 110b are a pair of rails 1.
It moves and moves back and forth while rotating on the 30a and the rail 130b.

The pair of rails 130a and 130b are each buried in the landing surface with the upper surface exposed. The distance between the rail 130a and the rail 130b in the width direction is the horizontal sliding door 1.
The distance is set to be shorter than the thickness dimension in the land and sea direction of No. 4 and is substantially equal to the distance between the wheel 110a and the wheel 110b and the distance between the wheel 110c and the wheel 110d. The length of the pair of rails 130a and 130b is necessary for the horizontal sliding door 14 to be located on the side of one embankment 1 in normal times, to advance to the side of the other embankment 3 in an emergency, and to close the opening 2. And it is set to a sufficient length.

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

(Drive of tide gate)
FIG. 6 is a front view of the drive unit of the tide gate according to the present embodiment. FIG. 7 is a plan view of the drive unit of the tide gate according to the present embodiment. FIG. 8 is a right side view of the locking mechanism, the transmission mechanism, and the speed suppressing mechanism among the driving parts of the tide gate according to the present embodiment.

The drive unit 18 that opens and closes the door portion 12 is a sum of the main weight 72, one or more auxiliary weights 74 connected to the main weight 72 and connected to each other in the vertical direction, and the main weight 72 and one or more auxiliary weights 74. A transmission mechanism 20 that transmits gravity due to mass to the door portion 12, and the door portion 12
The locking mechanism 30 is manually or electrically moved to a position on one side of the embankment 1 (hereinafter, also referred to as an “open position”) to lock the door, and the speed of movement of the door 12 connected to the transmission mechanism 20. It includes a speed suppression mechanism 40 that suppresses changes.

The drive unit 18 of the tide gate 10 is, as one of the closing means of the door portion 12, gravity caused by 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. The potential energy of the door is used as a power source.

The potential energy of the main weight 72 and one or more auxiliary weights 74 is such that when the door portion 12 is opened, the manual handle or the electric motor sequentially lifts the main weight 72 and one or more auxiliary weights 74 via the transmission mechanism 20. It is saved by things.

In the tide gate 10, the door portion 12 is locked in the open position by the locking mechanism 30 in normal times, and the main weight 72 and one or more auxiliary weights 74 are lifted against its own gravity. It is waiting in a locked state.

The drive unit 18 is at a time when the door unit 12 starts to move and starts the operation of closing the door unit 12 (hereinafter, referred to as
Also referred to as "at the start of closing operation". ), The door portion 12 and the main weight 72 and one or more auxiliary weights 74 are released from the locked state by the locking mechanism 30, and are transmitted by gravity due to the total mass of the main weight 72 and one or more auxiliary weights 74. It is configured to be automatically driven in the direction of closing the door portion 12 via the mechanism 20.

Further, after the door portion 12 starts to move, the drive unit 18 is sequentially released from the connection between the main weight 72 and one or more auxiliary weights 74 as described later, and is connected to at least the main weight 72 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 weights 74 in the state.

(Consolidation of main weight and auxiliary weight)
The main weight 72 is located at the uppermost position in the vertical direction, 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 one auxiliary weight 74 is used will be described as an example, but the number of auxiliary weights 74 connected vertically below the main weight 72 at predetermined intervals is two or more. May be good. The landing below the main weight 72 and one or more auxiliary weights 74 may be dug down, if necessary, in order to secure the descent distance of the main weight 72 and the auxiliary weight 74.

As shown in FIG. 6, the main weight 72 has a rectangular parallelepiped shape, and the main weight 72 is housed in a substantially tubular connecting member 76, which will be described later, so as to be able to descend and ascend 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. The connecting member 76 enables the main weight 72 and the auxiliary weight 74 to be connected to each other. The width of the connecting member 76 in the left-right direction is set to be slightly larger than the width of the main weight 72 in the left-right direction, and the outer peripheral surface 72a of the main weight 72 and the inner peripheral surface 76a of the connecting member 76 are configured to slide smoothly. ing.

The connecting member 76 has an opening 700 formed at the upper end thereof, and the hooking portion 760 is provided so as to project horizontally toward the opening 700. At the lower end of the connecting member 76, an auxiliary weight support portion 762 extending vertically downward is provided. The auxiliary weight support portion 762 has an opening 702 formed at the lower end thereof, and by fitting the outer peripheral surface of the rectangular auxiliary weight 74 to the inner peripheral surface of the opening 702, the auxiliary weight support portion 762 of the connecting member 76 is fitted. Auxiliary weight 74 is supported.

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

In normal times when the door portion 12 is open, the connecting member 76 stands by in a state where the hooking portion 760 of the connecting member 76 is hooked on the upper surface of the main weight 72 and is lifted by 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, "gravity caused by the total mass of the main weight 72 and the auxiliary weight 74" is, strictly speaking, a pair of movements due to the gravity caused by the total mass of the main weight 72 and the auxiliary weight 74. Gravity due to the total mass of the pulley 220 and the moving pulley 222 and the connecting member 76 is added.

Then, at the start of the closing operation of the door portion 12, the drive unit 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. It is configured as follows. At this time, if the tide gate 10 is kept on standby for a long period of time in the open state, excess oil and fat adheres to each part of the drive unit 18, and the initial movement resistance force (maximum static friction force) of the door portion 12 increases. It is 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 at the start of the closing operation of the door portion 12 has increased, and the door portion 12 has no delay. You can start moving.

Further, in the drive unit 18, after the door portion 12 starts to move toward the embankment 3 (closed side), the main weight 72, the auxiliary weight 74, and the connecting member 76 are lowered 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 comes off from the upper surface of the main weight 72 and becomes the main weight 72. The hook with the auxiliary weight 74 is released.

After that, the connecting member 76 until only the main weight 72 abuts on the upper surface of the auxiliary weight 74.
It descends smoothly inside. Therefore, 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,
Since the door portion 12 is driven in a direction of closing only by gravity caused by the mass of the main weight 72, the door portion 12 is decelerated or decelerated by rolling friction by the wheels 110a to 110d and sliding friction by the watertight rubber. It can move at a moderate speed without accelerating with a large acceleration. Then, when the main weight 72 reaches the upper surface of the auxiliary weight 74,
It is preferable that the door portion 12 is configured to reach the embankment 3.

Further, the main weight 72 and the auxiliary weight 74 are released from the hook (disconnection) by the main weight 7.
It is preferable that a stroke of about 10% to 20% of the descent stroke of 2 is set so as to be performed when the main weight 72 descends. This is to prevent the door portion 12 from accelerating excessively. However, when it is desired to increase the closing speed of the door portion 12, the auxiliary weight 74 may be released from the main weight 72 (disconnection) even after a longer stroke.

Further, the method of connecting the main weight 72 and the auxiliary weight 74 may be multi-staged by hooking the hooking portion 760 of the connecting member of one or more auxiliary weights 74 on the upper side of the main weight 72. According to the above configuration, after the closing operation of the door portion 12 is started, the drive unit 18 is sequentially released from the engagement (connection) between the main weight 72 and the two or more auxiliary weights 74, and the transmission mechanism 20
The door portion 12 is driven in a closing direction via the transmission mechanism 20 by gravity caused by the total mass of at least the main weight 72 connected to the door and the auxiliary weight 74 in the hooked (connected) state.

As a multi-stage method, for example, the connecting member 76 includes a connecting member 76 suspended on the upper surface of the main weight 72 and an auxiliary weight 74 supported by the connecting member 76.
The hooking portion 760 of the connecting member 76, which is one step larger than the above, may be hooked. Similarly, by gradually including the connecting member 76 and the auxiliary weight 74 in the larger connecting member 76, the method of connecting the main weight and the two or more auxiliary weights 74 can be multi-staged.

As another method of connecting the multi-stage weights, a hooking member (rod or wire) is arranged on two or more weights other than the weights connected to the transmission mechanism 20 and located at the uppermost vertical position, and the uppermost vertical weight is connected. One of the weights on which the hooking member (rod or wire) is arranged is hooked on the weight located at, and the other hooking member (the other hooking member (rod or wire) is hooked on the weight or the vertically uppermost weight.
By sequentially hooking the weights on which the rods or wires are arranged, all the weights may be connected to the transmission mechanism 20 and may be connected to each other in the vertical direction. This configuration has the advantage that it is difficult to unintentionally break the connection in the event of an earthquake or the like.

For example, specifically, as shown in FIG. 13, a pair for inserting a rod (hereinafter, referred to as "rod 76"), which is a connecting member 76 (hooking member), in front of and behind or to the left and right of the main weight 72. The holes are formed, and the pair of holes are formed in the same logarithm as the number of one or more auxiliary weights 74 connected to the main weight 72. Similarly, a pair of holes for inserting the rod 76 are formed in the front and rear or left and right of the two or more auxiliary weights 74 located vertically below the main weight 72 at predetermined intervals. The rod 76 has a hooking portion 760 at the upper end and an auxiliary weight supporting portion 762 at the lower end. The hooking portion 760 of the rod 76 has a main weight of 7.
It is a member for hooking on the upper surface of No. 2, and is formed in a substantially T-shaped protrusion. Rod 76
The auxiliary weight support portion 762 is a member for supporting the lower surface of the auxiliary weight, and is formed in a substantially inverted T-shaped protrusion. Then, the main weights 72 and 2 are passed through the rod 76.
The auxiliary weight 74 is connected to the above auxiliary weight 74.

In FIG. 13A, 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 standing by in the open position. It is a schematic diagram which showed the state which is. In FIG. 13B, 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. It is a schematic view which showed the state which the main weight 72 and 2 or more auxiliary weights 74 were lowered to the lowest position.

As shown in FIG. 13A, in the door portion 12, when the connecting member is a rod, the main weight 72 and two or more auxiliary weights 74 are lifted by the locking mechanism 30 while waiting in the released state. And locked.
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. 13 (a), first of all, the auxiliary weight located at the lowermost position in the vertical direction (hereinafter, "" Auxiliary weight 74a ") reaches the landing (unsigned) and stops. As a result, the rod 76 supporting the auxiliary weight 74a separates the hooking portion 760 from the upper surface of the main weight 72, and releases the connection with the main weight 72.
Subsequently, the auxiliary weight (hereinafter, referred to as "auxiliary weight 74b") located 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 releases the connection with the main weight 72.
Similarly, the engagement (connection) between the main weight 72 and the two or more auxiliary weights 74 is sequentially released.

From the above, at the time when the closing operation of the door is started, the main weight 72 and one or more auxiliary weights 74
By gravity caused by the total mass of the door portion 12, the door portion 12 is driven in a closing direction via a transmission mechanism 20 connected to the upper surface of the main weight 72, and after the door portion 12 starts to move, the door portion 12 is connected to the transmission mechanism 20. By gravity caused by the total mass of at least the main weight 72 and the auxiliary weight 74 in the hooked state, the door portion is driven in the direction of closing through the transmission mechanism 20.
Therefore, the driving force of the driving unit 18 that drives the door unit 12 drives the door unit 12 while dampening the force.
Therefore, at the start of the closing operation of the door portion 12, 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 attenuating the driving force. That is, even if the door portion 12 stands by in a fully open state for a long period of time and a large static friction force is generated due to the sticking of oil and fat to increase the resistance, the closing operation is surely performed at the start of the closing operation of the door portion 12. It can be started, and 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, the door portion 12 keeps a safe speed and continues the closing operation, and various types of the door portion 12 are started. The mechanism will not be damaged and will not harm passers-by. In addition, the gate can be closed automatically even when the commercial power supply is lost, and no special equipment such as compressed gas is required, so maintenance is easy.

Alternatively, the first auxiliary weight 74 is hooked on the upper surface of the main weight 72 connected to the transmission mechanism 20, and the second auxiliary weight 74 is hooked on the upper surface of the first auxiliary weight 74.
By hooking the n + 1 weight 74 on the upper surface of the nth auxiliary weight 74, all the weights may be connected to the transmission mechanism 20 and may be connected to each other in the vertical direction. This configuration has the advantage that no connecting member is required.

When the main weight 72 and the auxiliary weight 74 of 1 or more are lowered, the guide rail (not shown) for assisting the descent route is the main weight 72 and the auxiliary weight 74 of 1 or more.
It is preferable that it is provided in the vicinity of.
The guide rail prevents the main weight 72 and one or more auxiliary weights 74, which are waiting at the upper limit position, from being unintentionally released due to an earthquake or the like, and also prevents the main weight 72 and one or more auxiliary weights 74 from being unintentionally released. Stabilizes the descent operation of one or more auxiliary weights 74.

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

The transmission mechanism 20 includes a weight linear member 200, two fixed pulleys 210 and a fixed pulley 212 around which the weight linear member 200 winds, and two moving pulleys 220 around which the weight linear member 200 winds. The moving pulley 222, the drum 230 around which the weight linear member 200 is wound, and
Door linear member 240 that is wound around the drum 230, extends from the drum 230, and is connected to the door portion 12.
And three fixed pulleys 250, fixed pulleys 252, and fixed pulleys 25 around which the linear member 240 for the door winds.
4 and a pair of front side support member 260 and back side support member 262.

The front side support member 260 and the back side support member 262 each have a substantially inverted L shape in front view. One front support member 260 is arranged flushwise to the front side 102a of the guide 102, and the other back support member 262 is flush perpendicular to the back side 102b of the guide 102. The two are opposed to each other at intervals of the same dimension as the width (width in the land and sea direction) of the guide 102.

The drum 230 is rotatably attached to a drum rotation shaft 232 spanned at a substantially central position of the upper portion between the front side support member 260 and the back side support member 262.

The two fixed pulleys 210 and 212 have a front side support member 260 and a back side support member 262.
The fixed pulley rotation shaft 211 bridged to the upper part and the open side position is set to the same axis, and is juxtaposed and rotatably attached.

The fixed pulley 250 is rotatably attached to a fixed pulley rotation shaft 251 bridged below the drum 230 and at a position on a substantially open side between the front side support member 260 and the back side support member 262.

The fixed pulley 252 is a fixed pulley rotation shaft 253 bridged between the front side support member 260 and the back side support member 262 at a position below the drum 230, slightly above the fixed pulley 250, and substantially on the closed side.
It is rotatably attached to. The fixed pulley 252 is located between the position of the drum 230 and the position of the fixed pulley 250 in the vertical direction.

The fixed pulley 254 is rotatably attached to the fixed pulley rotating shaft 255 bridged between the support portion on the front side and the support portion on the back side of the support member 264 fixed to the end on the closing side of the guide 102. Has been done.

The two moving pulleys 220 and 222 are juxtaposed and rotatably attached with the moving pulley rotating shaft 221 extending in the land-sea direction protruding from the connecting portion 73 provided on the upper surface of the main weight 72. Has been done.

Axial direction of drum rotation shaft 232 and axial direction of constant pulley rotation shaft 211 and constant pulley rotation shaft 251
The axial direction of the fixed pulley rotation shaft 253, the axial direction of the fixed pulley rotation shaft 255, and the axial direction of the moving pulley rotation shaft 221 are the land and sea directions, and the pair of front side support members 260 and the back side support member 262. It is almost perpendicular to.

In the weight linear member 200, one end 200a is connected to the drum 230, and the drum 2
It is wound a plurality of times at a position on the inner side of the outer peripheral surface of 30, and is wound in the order of the fixed pulley 212, the moving pulley 222, the fixed pulley 210, and the moving pulley 220, and the other end 200b is connected to the anchor shaft 257. ing.

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

The main weight 72 and the auxiliary weight 74 connected to the pair of moving pulleys 220 and the moving pulley 222 are apparently suspended by four weight linear members 200. Therefore, with respect to the stroke of the moving pulley rotating shaft 221, in other words, the moving 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 moving stroke of the door portion 12 It will be quadrupled. That is, the moving distance between the main weight 72 and the auxiliary weight 74 is one-fourth of the moving distance of the door portion 12, and the driving portion 18
Can be miniaturized. In order to reliably move the door portion 12 when the door portion 12 is closed, the gravity caused by the total mass of the main weight 72 and the auxiliary weight 74 is the initial movement resistance force of the door portion 12 ( The main weight 7 is such that the magnitude of the force exceeds the magnitude of the force obtained by multiplying the maximum static friction force) by the apparent number of the linear members 200 for the weight (4 in the case of the present embodiment).
It is preferable that the total mass of 2 and the auxiliary weight 74 is set. Here, the initial movement resistance force (maximum static friction force) of the door portion 12 includes the resistance force due to the adhesion of oil and fat to the various mechanisms of the door portion 12 and the drive portion 18. Further, the mass of the main weight 72 is the wheels 110a and the wheels 11 of the door portion 12.
The weight linear member 200 has a force that resists the rolling friction between 0b and the rail 130a and the rail 130b, and the sliding friction between the watertight rubber provided at the lower part of the door portion 12 and the landing surface.
It is preferable that the gravity is set to correspond to the force obtained by multiplying the apparent number of the above.

In normal times when the door portion 12 is open, the weight linear member 200 is the drum 23.
It is wound around the outer peripheral surface of 0 with the maximum number of turns, and the main weight 72 and the auxiliary weight 74 are set to be lifted to the upper limit position in the height direction and stand by.

In the door linear member 240, one end 240a is the upper surface 16 of the door support member 16 of the door 12.
A fixed pulley 25 connected to one door linear member hook 84 formed in c and located at the lower stage.
It is wound to 0, wound to a position on the front side of the outer peripheral surface of the drum 230 located in the upper stage, and wound to a fixed pulley 252 located in the middle stage. Further, the door linear member 240 is referred to as a guide 1.
Passing above 02 toward the closed side along the guide 102, after being wound around the fixed pulley 254 located at the end of the guide 102, the direction is reversed and the center position inside the guide 102 is set. It passes along the guide 102 toward the open side. The door linear member 240 is connected to the other door linear member hook 86 whose other end 240b is formed on the upper surface 16c of the door support member 16 of the door portion 12.

With the configuration of the door linear member 240 and the drum 230 as described above, the drive unit 18 and the door unit 1
The degree of freedom of the connection method with 2 is increased. Further, for example, the structure is simpler and the cost is lower than the configuration using the rack and the pinion gear. Door linear member 240 and drum 23
Since resistance is generated between 0 and 0, the door portion 12 can maintain a safe speed and continue the closing operation. In the door linear member 240, one end portion 240a and the other end portion 240b are both connected to the open side of the door portion 12 so as to orbit above the door portion 12 via the door portion 12. Therefore, the door portion 12 is moved to the open side by rotating the drum 230 clockwise at the time of opening and then waits at the open position, and by rotating the drum 230 counterclockwise at the time of closing, the door portion 12 is moved to the open side. It is configured to reach the closed position after being moved to. The door linear member 240 has an endless shape via the door portion 12, and the door portion 12 can be opened and closed 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 open side and the closed side.

Further, due to the configuration in which the moving pulley is used in the transmission mechanism 20, the moving distance of the main weight 72 and the auxiliary weight 74 in the hooked state is reduced as compared with the moving distance of the door portion 12, and the main weight 72 and the hooked state are stopped. Gravity due to the total mass of the auxiliary weights 74 in is transmitted to the door portion 12.

(Locking mechanism of drive unit)
The locking mechanism 30 of the driving unit 18 manually or electrically moves the door unit 12 to the open position on the side of the embankment 1 to lock the door.

The locking mechanism 30 connects the electric motor 300, the electromagnetic clutch 302, the speed reducer 304, the manual handle 306, the screw brake 308, and the transmission mechanism 20 to connect the main weight 72, the auxiliary weight 74, and the door portion 12. Disc brake 310, which is a locking brake for locking
And a limited switch 312.

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

The electromagnetic clutch 302 is connected to the transmission mechanism 20 via the speed reducer 304, and controls the 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 an electric motor 300.
The high-speed rotation of the drum 230 is decelerated 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 uses the manual handle 306 to transmit the transmission mechanism 20.
The moment of rotation brought to the door is amplified, and the force of the human arm makes it possible to drive the door portion 12, the main weight 72, and the auxiliary weight 74 having a large mass. Further, the rotation speed of the fan brake 400, which is the speed suppression mechanism 40 described later, is increased from the rotation speed of the drum. The speed reducer 304 has a rotation shaft 304a extending in both the open side and the closed side in the same direction as the opening / closing direction (left-right direction) of the door portion 12. The rotating 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 described later on the closed side. Further, in the speed reducer 304, a limit switch 312 is transmitted to the speed reducer 3 via the chain sprocket 314, the roller chain 316 and the chain sprocket 318.
It is connected to 04.

The disc brake 310 shares a rotation shaft 304a extending from the speed reducer 304 with the fan brake 400, which will be described later, and is connected to the speed reducer 304. 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 described later.

The limit switch 312 detects the rotation speed of the drum 230 via the speed reducer 304. As a result, the control device 900 connected to the limiting switch 312 detects that the lateral sliding door 14 has reached the open position or the closed position, and the electromagnetic clutch 302 transmits the electric motor 300 to the transmission mechanism 2.
The connection is released from 0, and the supply of electric power to the electric motor 300 is cut off.

In normal times 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 weight. When the door portion 12 moves to the open position, the brake pad of the disc brake 310, which is a locking brake, is pressed against the rotor 310a, and the main weight 7 is pressed.
2 and the auxiliary weight 74 and the door portion 12 are configured to stand by in a locked state.

When the door portion 12 is closed at the time of tide prevention, the brake pad of the disc brake 310, which is a locking brake, releases the pressure contact of the rotor 310a by manual or electric operation, and the main weight 72, the auxiliary weight 74, and the door portion 12 are opened. It is configured to release the locked state of. When the locked state is released, gravity caused by the total mass of the main weight 72 and the auxiliary weight 74 drives the drum 230 to rotate counterclockwise.

When the drum 230 is rotationally driven in the counterclockwise direction, 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 linear member 240 for the door 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 the side of one embankment 1 to the other embankment. Move towards the side of 3 and close the opening 2. Therefore, according to the above-mentioned tide gate 10, the gate can be automatically closed even when the commercial power supply is lost, and no special equipment such as compressed gas is required, and 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 when the door portion 12 tries to accelerate excessively, the speed suppressing function of the fan brake 400 is activated to suppress 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 damaging the various mechanisms of the door portion 12 and without causing any harm to passersby or the like.

The unlocking of the disc brake 310 was based on manual operation by the manual switch 311 or remote control by the control device 900 by electric power from a smartphone 932 or the like or reception of information or the like from the national instantaneous warning system 930. It is done by automatic operation.

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

As shown in FIG. 9, the manual handle 306 can be connected to the transmission mechanism 20 via the screw brake 308 and the speed reducer 304. The manual handle 306 has an integral structure incorporating a screw brake 308, and has a disconnection mechanism 506 that disconnects the connection with 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, a handle guide shaft 522, a handle guide shaft 524, a handle guide shaft 526, and four handle guides. It has a 530, a handle guide 532, a handle guide 534, a handle guide 536, a handle center shaft 550, a handle center shaft stopper 552, and a handle center bearing 556.

As shown in FIG. 11, the rectangular handle base 508 has a handle center shaft hole 5 in the center.
10 is formed. As shown in FIG. 9, in the central portion of the upper surface of the handle base 508,
A handle center bearing 556 having a shaft having the same center as the handle center shaft hole 510 is provided. The handle center shaft 550 is rotatably inserted into the handle center shaft hole 510 and the handle center bearing 556.
One end of the handle central shaft 550 is fixed to the central portion 504 of the handle main body 500. The handle central shaft 550 has a thread formed on the outer peripheral surface of the other end portion 550b, and a screw brake central shaft hole 554 is formed in the central portion of the end surface.

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

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

The handle base 508 moves up and down between the upper stopper 538 provided on the head of each of the handle guide shaft 520, the handle guide shaft 522, the handle guide shaft 524, and the handle guide shaft 526 and the lower stopper 540 provided in the middle stage. You can move.

The screw brake 308 is connected between the manual handle 306 and the speed reducer 304.
The connection between the manual handle 30 and the transmission mechanism 20 is controlled according to the rotation direction of the manual handle 306. The screw brake 308 has a manual handle 30 in the direction (clockwise) for opening the door portion 12.
By rotating 6, the manual handle is connected to the transmission mechanism 20, and by rotating the manual handle 306 in the direction of closing the door portion 12 (counterclockwise), the manual handle 306
Is configured to be disconnected from the transmission mechanism 20.

The screw brake 308 includes a screw brake central axis 600, a claw gear 610, a right-handed clutch claw nut 620, a brake disc 630 and a brake disc 632, a brake claw 640 and a brake claw 642, and a clutch claw 650. Have.

The claw gear 610 is arranged so that the brake disc 630 can be pressure-contacted with the handle central shaft stopper 552, and is screwed to a thread formed on the outer peripheral surface of the other end 550b of the handle central shaft 550. The brake disc 632 is arranged in a state where it can be pressure-welded to the clutch claw nut 620.

One end 600a of the screw brake center shaft 600 is inserted into a screw brake center shaft hole 554 formed in the other end 550b of the handle center shaft 550. One end 600a of the screw brake central shaft 600 can be expanded and contracted by moving in and out of the screw brake central shaft 600. Therefore, the handle central axis 550 of the manual handle 306 is the separation mechanism 5 described later.
The manual handle 306 is moved to the opposite side of the speed reducer 304 together with the handle center shaft stopper 552, the handle base 508, the claw gear 610, and the clutch claw nut 620 by 06 and the screw brake center shaft 600, and the manual handle 306 is pulled (hereinafter, hereinafter Also referred to as "disengagement position")
On the other hand, the manual handle 306 moves to the speed reducer 304 side and becomes a position where the clutch claw 650 and the clutch claw nut 620 mesh (hereinafter, also referred to as "meshing position"). Is also possible.

The screw brake central shaft 600 has a clutch claw 650 attached to the other end 600b on which the parallel key 660 is formed, and is connected to the rotating shaft of the speed reducer 304. At the time of electric operation, the clutch claw 650 and the clutch claw nut 620 are separated by the disconnection mechanism 506, and the manual handle 306 does not idle.

The separation 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 claw gear 610, and a clutch claw nut. It is composed of 620, a handle base 508, a brake claw 640, a brake claw 642, an upper stopper 538, and a lower stopper 540. By grasping the grip portion 502 or the handle body 500 by hand and moving the handle body 500 to the detached position opposite to the speed reducer 304 or the meshing position on the speed reducer 304 side, the screw brake central axis 600 expands and contracts. Then, the handle central shaft 550 into which the screw brake central shaft 600 is inserted moves away from or approaches the speed reducer 304. As a result, the handle center shaft stopper 552 integrally connected to the handle center shaft 550, the clutch claw 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 claw nut. A claw gear 640 disposed between the 620, a handle center bearing 556, and a handle base 5 connected to the handle center bearing 556.
08 and the brake claw 640 and the brake claw 642 connected to the handle base 508 integrally move away from or approach the speed reducer 304. Then, the claws of the clutch claw nut 620 constituting the screw brake 308 and the claws of the clutch claw 650 connected to the speed reducer are disengaged or meshed with each other.

That is, by having the disengagement mechanism 506, the manual handle 306 moves to the detached position and is disconnected from the transmission mechanism together with the screw brake 308, while the manual handle 30
6 moves to the meshing position and is connected to the transmission mechanism 20 together with the screw brake.

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

During the manual opening operation, the manual handle 306 is manually moved to the meshing position.
The screw brake 308 connects the manual handle 306 to the transmission mechanism 20 by rotating the manual handle 306 in a direction that opens the door portion 12. Specifically, the manual handle 30
6 is pushed in and rotated clockwise (rotated clockwise) with the screw brake central shaft 600 contracted, and the clutch claw nut 620 and the clutch claw 650 of the screw brake 308 are engaged. Here, clockwise rotation (rotation clockwise) means rotating clockwise when the speed reducer 304 side is viewed from the manual handle 306 side. The same applies hereinafter. The same applies to counterclockwise rotation (counterclockwise rotation).

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

By being locked, the handle center shaft 550, the clutch claw nut 620, and the claw gear 6
The 10 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 passed through the handle center shaft 550, the clutch claw nut 620, and the clutch claw 650. Is output to the speed reducer 304.

Therefore, the manual handle 306 is connected to the transmission mechanism 20. Then, when the manual handle 306 is rotated clockwise, the drum 230 is rotated clockwise against the gravity caused by the total mass of the main weight 72 and the auxiliary weight 74, and the weight linear member 200 is the outer circumference of the drum 230. It is wound around the surface, and 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 a manual handle, a screw brake, and a disconnection mechanism during a manual closing operation of the tide gate according to the present embodiment.

During the manual closing operation, the manual handle 306 is manually moved to the meshing position. The screw brake 308 disconnects the manual handle 306 from the transmission mechanism 20 by rotating the manual handle 306 in a direction that closes the door portion 12. Specifically, the manual handle 306 is pushed in and rotated counterclockwise (counterclockwise) with the screw brake central shaft 600 contracted, and the clutch claw nut 620 and the clutch claw 650 of the screw brake 308 are engaged with each other. To.

When the manual handle 306 is pushed in and rotated counterclockwise, the clutch claw nut 620 slightly moves to the speed reducer 304 side. At this time, the claw gear 610 is locked by the brake claw 640 and the brake claw 642 and does not rotate counterclockwise. When the clutch claw nut 620 is separated from the claw gear 610, the lock between the clutch claw nut 620 of the manual handle 306, the claw gear 610, and the handle center shaft stopper 552 is released. As a result, the manual handle 306 is disconnected from the transmission mechanism 20.

From the speed reducer 304, gravity due to the mass of the main weight 72 or gravity due to the total mass of the main weight 72 and the auxiliary weight 74 is transmitted through the transmission mechanism 20 to the clutch claw 650.
Is transmitted in the direction of clockwise rotation, and the clutch claw nut 62 that meshes with the clutch claw 650
0 rotates clockwise. As a result, the right-handed clutch claw nut 620 and the screw brake center shaft 6
Due to the action of the screw thread between 00 and 00, the clutch claw nut 620 moves to the claw gear 610 side again. Then, again, the clutch claw nut 620, the claw gear 610, and the handle center shaft stopper 552 are integrally fixed. That is, due to the action of the screw brake 308, the main weight 72, the auxiliary weight 74, and the door portion 12 automatically move by the amount that the manual handle 306 is rotated counterclockwise to disconnect the manual handle 306 and the transmission mechanism 20. Then, due to the action of the screw brake 308 due to the movement, the manual handle 306 and the transmission mechanism 20 are connected again, and the main weight 72, the auxiliary weight 74, and the door portion 12 are locked.

After that, when the manual handle 306 is further rotated counterclockwise, 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 7 is unwound.
2 and the auxiliary weight 74 descend. As a result, the drum 230 rotates and the door portion 12 is closed.

As described above, the disengagement mechanism 506 pushes the manual handle 306, moves it to the meshing position, and turns it to perform manual operation, and pulls it to the disengagement position. When the manual handle 306 is in the detached position, when the door portion 12 is opened by electric operation, or when the door portion 12 is closed due to gravity caused by the total mass of the main weight 72 and one or more auxiliary weights 74. The manual handle 306 does not run idle. That is, the manual handle 306 can safely open and close the door portion 12 regardless of whether the manual handle 306 is used or not by the screw brake 308 and the separation mechanism 506, and the main handle 306 can be opened and closed. The weight 72 and the auxiliary weight 74 can be raised and lowered.

That is, according to the tide gate 10 provided with the locking mechanism 30, the door portion 12 is manually or electrically operated.
Can be moved to the open position and locked in the open position, and when the door portion 12 is closed, the locked state of the door portion 12 is released manually or electrically, and the door portion 1 is used by using the manual handle 306.
Even when closing 2, the door portion 12 can be safely closed.

(Drive speed suppression mechanism)
The speed suppressing mechanism 40 of the driving unit 18 is connected to the transmission mechanism 20 to suppress a change in the moving speed of the door unit 12.

The speed suppression mechanism 40 has a fan brake 400. The fan brake 400
It has a fan 402 and a damper (not shown). The fan 402 is a member that generates a 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 rotation shaft 304a extending from the speed reducer 304 to the closed side in the left-right direction. Therefore, the fan brake 400 is connected to the drum rotation shaft 232 of the drum 230 of the transmission mechanism 20 via the speed reducer 304. At this time, the rotation speed of the fan 402 is increased from the rotation speed of the drum 230 by passing through the speed reducer 304.

When the door portion 12 is closed at the time of tide prevention, after the door portion 12 starts to move, the fan brake 400 is configured to suppress the change in the moving speed of the door portion 12. Specifically, the braking force of the fan 402 is adjusted by opening and closing the damper of the fan brake 400, and the drum 2
The rotation speed of the drum rotation shaft 232 of 30 is adjusted. Therefore, tentatively, the main weight 7
Even if the mass of 2 or the total mass of the main weight 72 and the auxiliary weight 74 is excessive,
The door portion 12 can continue the closing operation while maintaining a safe moving speed by the fan brake 400. The speed suppression mechanism 40 may be a centrifugal brake, a hydraulic brake, or the like.

(Control system for tide gate)
FIG. 14 is a block diagram showing an example of a control system for the tide gate 10. Control device 9
00 is an operation circuit / communication device 902, a battery 904, and a battery box 906.
It has a charging 908, a switch S1, a switch S2, a switch S3, a switch S4, and a thermistor 910. The operation circuit / communication device 902 is electrically connected to the battery 904.

The tide gate 10 is configured so that a commercial AC100V power supply, a portable generator 920, and a solar panel 922 can be used as a power source. In addition, commercial AC100
The V power supply and the portable generator 920 are each battery 90 via the switch S1.
It is electrically connected to 4 and can charge the battery 904. Further, the solar panel 922 can be electrically connected to the battery 904 via the battery box 906 and the charging 908 to charge the battery 904.

In the battery 904, the main weight 72, the auxiliary weight 74, and the door portion 12 are maintained in a locked state by the disc brake 310 according to the operation circuit / communication device 902, or
It is configured to release the locked state.

Therefore, the control device 900 has a battery 904 for maintaining the locked state of the main weight 72, the auxiliary weight 74, and the door portion 12 even when the commercial AC100V power supply or the like is lost, and is remotely controlled or a national instantaneous alarm. It is configured so that the locked state of the main weight 72, one or more auxiliary weights 74, and the door portion 12 can be released in response to information, breaking news, warnings, or alarms from the system.

Further, the tide gate 10 receives a signal from the national instantaneous warning system (J-alert) 930 and a wireless signal from a mobile phone (smartphone) or a 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 control 934 or the like can be received. The signal from the national instantaneous warning system 930 is automatically received by the operation circuit / communication device 902.

Further, the tide gate 10 has the above-mentioned manual handle 306 and the above-mentioned manual handle 306 as a means for closing the door portion 12.
The electric motor 300, the electromagnetic clutch 302 for the electric motor, and the disc brake 310 with the manual release device 311 are configured to be usable. The electric motor 300 and the electromagnetic clutch 302 are electrically connected to a commercial AC100V power supply and a portable generator 920 via a thermistor 910, a switch S1, a switch S2, and a switch S3. The disc brake 310 with the manual release device 311 is electrically connected to the battery 904 via the switch S4.

Therefore, when the locking mechanism 30 automatically receives information, breaking news, warnings, or alarms from the national instantaneous warning system 930, the locking mechanism 30 utilizes the electricity charged in the battery 904 to be a disc that is a locking brake. A control device 900 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 is provided. As a result, the door portion 12 can automatically start the closing operation without requiring a person to close the door portion 12 at the time of tide prevention.

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 locked state of the main weight 72, the auxiliary weight 74, and the door portion 12 by the locking mechanism 30. Further, at the time of tide prevention, the closing operation can be started remotely or automatically without requiring a person to approach the tide gate 10 in order to operate the tide gate 10.

In addition, the tide gate 10 has a camera 950 and a rotating light / chime 952 as safety devices.
The pinch prevention sensor 954 and the obstacle sensor 956 are configured to be usable. The camera 950, the rotating light / chime 952, the pinch prevention sensor 954, and the obstacle sensor 956 are electrically connected to the operation circuit / communication device 902, respectively. As a result, it is possible to avoid the danger that the evacuated person is caught in the horizontal sliding door 14.

In the above-described embodiment, the main weight 72 and one or more auxiliary weights 74 (plural 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 according to the above-described embodiment, it can be used, for example, for a rotary gate. That is, the configuration including 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 that are connected to each other in the vertical direction and drives. At the start, all the weights are driven by using their weights, and after the object to be driven starts to move, the connection of the plurality of weights is sequentially released from the vertically lower side, and the weights located at the uppermost position in the vertical direction and the weights concerned. It is established as a drive mechanism in which the weight connected to the weight is driven by using the weight. The drive mechanism is included in the drive unit 18 of the above-described embodiment.
Then, according to the drive mechanism, the movement of the drive object can be reliably started at the time when the drive object starts to be driven, and after the drive object starts to move, the movement speed of the drive object is suppressed to a predetermined speed or less. , 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, various changes can be made to the above-described embodiments with respect to the mechanism, shape, material, quantity, position, arrangement, etc., without departing from the scope of the technical idea and purpose of the present invention. They are, and they are included in the present invention.

1,3 Embankment 1a, 3a Top surface of embankment 2 Opening formed between embankment 10 Tide gate 12 Door 12
14 Horizontal pulley door 16 Door support member 18 Drive unit 20 Transmission mechanism 30 Locking mechanism 40 Speed suppression mechanism 72 Main weight 73 Connection part 74 Auxiliary weight 76 Connection member 84 Hook for linear member for one door 86 For other door Hooks for linear members 100a, 100b, 100c, 100d Guide support members 101 Arms of guide support members 102 Guides 102a Side parts on the front side of the guide 102b Side parts on the back side of the guide 104a, 104b, 104c, 104d, 104e, 104f Guide roller 110a, 110b, 110c, 110d Wheel 114a, 114b Roller bearing 116 Axle 130a, 130b Rail 200 Weight linear member 210, 212 Fixed pulley 211 Fixed pulley Rotating shaft 220, 222 Moving pulley 221 Moving pulley Rotating shaft 230 Drum 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 rotating shaft 257 anchor Shaft 260 Front side support member 262 Back side support member 264 Support member 300 Electric motor 302 Electromagnetic clutch 304 Reducer 304a Reducer rotation shaft 306 Manual handle 308 Screw brake 310 Disc brake (locking pulley)
310a Rotor 311 Manual switch 312 Limited switch 314,318 Chain sprocket 316 Roller chain 400 Fan brake 402 Fan 500 Handle body 502 Grip 504 Center 506 Separation mechanism 508 Handle base 510 Handle center shaft hole 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 Center shaft hole 556 Handle center bearing 600 Screw brake center shaft 600a One end of screw brake center shaft 600b The other end of screw brake center shaft 610 Claw gear 620 Clutch claw nut 630,632 Brake disc 640,642 Brake claw 650 Clutch claw 660 Parallel key 700 Opening at the upper end of the connecting member 702 Opening at the lower end of the connecting member 760 Hooking part of the connecting member 762 Auxiliary weight support 900 Control device 902 Operation circuit / communication device 904 Battery 906 Battery box 908 Charging 910 Thermista 920 Portable Generator 922 Solar Panel 930 National Instant Alert System (J Alert)
932 Mobile phone (smartphone) or mobile tablet 934 Remote control 950 Camera 952 Rotating light / chime 954 Anti-pinch sensor 956 Obstacle sensor S1, S2, S3, S4 Switch

Claims (4)

A drive mechanism for opening and closing the door
Vertically below the main weights located vertically uppermost, one or more auxiliary weights at predetermined intervals are connected,
It has a connecting member capable of connecting the main weight and the auxiliary weight, and has a connecting member.
The connecting member is hooked on the main weight and stands by in a state of being lifted by the main weight.
At the start of driving, all the weights are driven by utilizing their weights.
After the driving object starts to move, the engagement between the main weight and one or more auxiliary weights is sequentially released, the connection of the plurality of the weights is sequentially released from the vertically lower side, and the vertically uppermost position is located. A drive mechanism in which a weight and a weight connected to the weight are driven by using the weight thereof. A drive mechanism for opening and closing the door
Vertically below the main weights located vertically uppermost, one or more auxiliary weight at predetermined intervals are connected,
It has a connecting member capable of connecting the main weight and the auxiliary weight, and has a connecting member.
The connecting member has a hooking portion provided at the upper end and has a hooking portion.
The hooking portion of the connecting member of the auxiliary weight of one or more of the auxiliary weights is hooked on the main weight.
At the start of driving, all the weights are driven by utilizing their weights.
After the driving object starts to move, the engagement between the main weight and one or more auxiliary weights is sequentially released, the connection of the plurality of the weights is sequentially released from the vertically lower side, and the vertically uppermost position is located. A drive mechanism in which a weight and a weight connected to the weight are driven by using the weight thereof. Door portion, the gravity due to the total mass of which is connected to the main weight and one or more auxiliary weights the main weight and one or more of said auxiliary weights and transmission mechanism for transmitting to the door unit, the door portion manually or with an electric It has a locking mechanism that moves it to the open position and locks it.
Drive dynamic mechanism,
The main weight and the auxiliary weight are configured to be lifted and locked by the locking mechanism while the door portion is standing by in the open position.
In closing operation start time of the door portion by gravity to release the locked state of the door portion by the locking mechanism, due to the total mass of the main weight and one or more of the auxiliary weight, said transmission mechanism It is configured to be driven in a direction to close the door portion through the door.
After the door portion starts to move, the connection between the main weight and one or more auxiliary weights is sequentially released, which is caused by the total mass of at least the main weight connected to the transmission mechanism and the auxiliary weight in the connected state. by gravity, through the transmission mechanism, characterized in that it is configured to drive the direction for closing the door unit, drive kinematic mechanism. The door portion having a door is connected to the main weight and one or more auxiliary weights, and transmits gravity caused by the total mass of the main weight and one or more auxiliary weights to the door portion, and the door. It has a locking mechanism that manually or electrically moves the part to the open position and locks it.
The connecting member has a hooking portion provided at the upper end and a supporting portion provided at the lower end to support the auxiliary weight.
The hooking portion of the connecting member of one or more auxiliary weights is hooked on the upper side of the main weight.
At the start of the closing operation of the door portion, the door portion is configured to be driven in a direction of closing the door portion via the transmission mechanism by gravity caused by the total mass of the main weight and one or more auxiliary weights. ,
After the door portion starts to move, the hooking of the main weight and one or more auxiliary weights is sequentially released, and the total mass of at least the main weight and the auxiliary weight in the hooked state connected to the transmission mechanism. The driving mechanism according to claim 1 or 2, wherein the door portion is driven in a direction of closing the door portion by gravity caused by the above.

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