JP3052285B2 - Manual lifting device for doors of water gates and gutters - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manually raising and lowering a door of a floodgate or gutter gate by manually operating a handle by operating a handle.

[0002]

2. Description of the Related Art Generally, a water gate and a gutter gate are provided with a drive device incorporating a motor and a motor for raising and lowering a door body. The door is driven up and down. In addition, sluice gates and gutters are generally installed in non-electrified areas, and in recent years, electrification works are often restricted for environmental protection reasons. In such cases, even relatively large sluices and gutters are used. This type of manual lifting device had to be used.

FIG. 4 is a front view showing a conventional example of this type of a door manual lifting device, and FIG. 5 is an enlarged sectional view taken along line AA of FIG. As shown in the figure, the door body manual lifting device includes a ladder-like rack bar 33 having pins 33a arranged at predetermined intervals.
Are attached by penetrating the casing 32 in the up-down direction. The rack bar 33 has a pin 33 a meshed with a pin gear 34 inside the casing 32, and is driven vertically by rotation of the pin gear 34.

A shaft 35 having a pin gear 34 attached thereto is
It engages with a relay shaft 37 disposed on one side of the casing 32 via a gear 38 meshed with a gear 36 fixed coaxially, and this relay shaft 37 is connected to a gear 39, a gear 40, a gear 41, a gear 42 and a shaft 43 on the other side via a gear 43. The shaft 44 is engaged with the handle shaft 30 to which the handle 31 is fixed via a differential gear device 45 or a power transmission mechanism (not shown).

[0005] Although not shown, the relay shaft 37 is connected to a relay shaft of a similar manual door lifting and lowering device via a shaft (not shown) so that the rack rods 33 attached to the respective relay shafts can be driven in synchronization. It has become. Further, a door (not shown) of a water gate or a gutter gate is fixed to a lower end of each rack bar 33, and the door is suspended and supported by a pair of rack bars 33.

Therefore, when the handle 31 is rotated, the rotational force of the handle 31 is transmitted to the pin gear 34 at a reduced speed via a power transmission mechanism such as the gears 39 to 43, and the rack meshed with the pin gear 34. The rod 33 is driven in the vertical direction. Therefore, the door attached to the lower end of the rack bar 33 is driven up and down to open and close a water gate and a gutter gate.

In FIG. 5, reference numeral 47 denotes a self-weight lowering switching lever for lowering the door by its own weight, and reference numeral 46 denotes a centrifugal brake device for controlling the door to prevent acceleration at that time.

Although not shown, this type of door-body manual lifting device is provided with a self-locking mechanism so that the door does not descend even when the handle 31 is released.

[0009]

In the above-described conventional manual lifting device for a water gate or a gutter gate, the rotation of the handle shaft is reduced and transmitted to the pin gear. Even at floodgates and gutters, the operating load of the door body is quite large, and opening it with human power alone was a very heavy labor requiring several hours.

If this type of lifting device is not used for a long period of time, it may not be able to be driven at an emergency due to rust or the like. Therefore, it is obliged to periodically open and close the door. I have. However, as described above, the work is extremely hard work, and it is currently almost impossible to completely open and close the door and check the operation.

It is also possible to attach an adapter to this type of manual elevating device and operate it using a motor or a prime mover. In this case, however, it takes time for setting, securing power supply and carrying in fuel. There was a new problem that had to be solved. In addition, since the motor and prime mover are installed outside the lifting device, there is a problem in safety, and the manual lifting device designed on the assumption of driving by human power is forcibly driven using the driving source. As a result, there is a possibility that an unexpected failure or trouble may be caused.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the problems of the above-mentioned conventional manual lifting device for a water gate or a gutter gate.

[0013]

In order to solve the above-mentioned problems, the invention according to claim 1 of the present invention is characterized in that an input shaft to which a handle is attached is connected to a door body side of a lifting device. A planetary gear device is provided between the driving shaft and the planetary gear device, and the planetary gear device has a rotating member in which a central sun gear is rotatably mounted on the input shaft, and a planetary gear engaged with the sun gear is fixed to the input shaft. The outer ring gear that is rotatably supported on one side and meshes with the planetary gear is fixedly connected to the drive shaft, and the sun gear has a predetermined range of rotation to the left and right according to the torque applied to the sun gear. A variable resistor for electrically measuring the torque at this time is provided in the vicinity of the torque lever, while an auxiliary drive device having a motor is provided on the drive shaft. Can be rotationally driven to engage By controlling the driving of the motor of the auxiliary driving device based on the measured value of the variable resistor, the lifting device can be auxiliary-driven according to the magnitude of the input from the handle, so that the gate of the floodgate or gutter gate can be manually operated. It is a lifting device.

According to a second aspect of the present invention, in the configuration of the first aspect of the present invention, a condition that the planetary gear unit transmits the rotation of the input shaft to the drive shaft at an increased speed is added. It is characterized by the following.

According to a third aspect of the present invention, in addition to the configuration of the first aspect of the present invention, a control means for an auxiliary drive device based on the rotation of the drive shaft and its rotation speed is added.

According to a fourth aspect of the present invention, in addition to the configuration of the first aspect of the present invention, a configuration in which a storage battery or a generator is added as a power source of the auxiliary driving device is added.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on illustrated embodiments.

FIG. 1 is a longitudinal sectional view of a water gate or gutter gate manual lifting / lowering apparatus 1 according to the present invention, and FIG. 2 is a cutaway front view of a main part. As shown in the figure, the door manual lifting device 1 is a thin type provided with a handle 2 and a motor 3, and is provided with a handle shaft 30 of a lifting device main body A (see FIG. 3) previously installed at a water gate or a gutter. The drive shaft 6 is connected to and mounted on the motor. The lifting device main body A drives the rack bar 33 that suspends and supports a door (not shown) up and down by rotating the handle shaft 30 in exactly the same manner as that shown in the conventional example. The drive shaft 6, which opens and closes a water gate and a gutter gate, is rotatably arranged on the same axis as the input shaft 5 to which the handle 2 is attached. The planetary gear device 7 is interposed. In this planetary gear device 7, a central sun gear 7a is rotatably mounted on the input shaft 5, and a planetary gear 7b meshed with the sun gear 7a is fixed to one side of a rotating member 7d (see FIG. 1, an outer ring gear 7c rotatably supported on the right side (in FIG. 1) and meshing with the planetary gear 7b is fixedly connected to the drive shaft 6 via a connecting member 15 and a gear 14.

A torque lever 8 is integrally attached to the sun gear 7a. This torque lever 8
As shown in FIG. 2, the tip protrudes above the sun gear 7 a, and on both left and right sides thereof,
11 are provided by springs 12 and 13 so as to urge each other in a direction in which they protrude. In the middle of the torque lever 8, an arc-shaped gear 8 a having teeth coaxially with the rotation center of the torque lever 8 is attached, and this gear 8 a is attached to a variable resistor 9 fixed to the casing 4. It meshes with a gear 9b fixed to the shaft 9a.

An auxiliary drive device is provided below the drive shaft 6. The auxiliary drive device includes a motor 3 and a gear transmission mechanism that transmits the rotation of the motor 3 to the drive shaft 6 at a reduced speed. This gear transmission mechanism is provided with a shaft 3 of the motor 3.
a gear 18b meshed with the gear 3b fixed to the gear a, a gear 18a fixed to the same shaft 18 as the gear 18b,
The gear 17a meshed with the gear 18a and the gear 1
7a is fixed to the same shaft 17 as the gear 17a, and is constituted by a gear 17a meshed with the gear 14 fixed to the drive shaft 6.

The motor 3 is connected to a power source via a control circuit (not shown) so that the drive is controlled based on the measured value of the variable resistor 9. As a power source, in addition to laying power lines, portable generators and storage batteries can be used.However, if a system that stores power in storage batteries using solar panels is adopted, overhead wiring work is not required and maintenance work is troublesome. It does not take.

The gear 14 fixed to the drive shaft 6 is provided with a plurality of through holes 14a concentrically, and at a predetermined position of the casing 4 facing the through holes 14a, the presence or absence of the through holes 14a is determined. Is provided, a sensor 16 for sensing
These constitute the control means of the auxiliary drive device based on the rotation of the drive shaft 6 and its rotation speed.

[0023] The manual lifting device 1 for a water gate or gutter gate according to the present invention.
Has the above configuration.

In FIG. 1, reference numeral 21 denotes the drive shaft 6.
And a key fitted into a key groove provided on the handle shaft 30 and non-rotatably engaged with each other. Similarly, reference numerals 19 and 20 denote a portion between the drive shaft 6 and the gear 14, and a portion between the handle 2 and the input shaft. 5 shows a key interposed between the keys. Also, 23, 24,
25, 26, 27 are axes 5, 30, 17, 18 respectively
1 shows a bearing rotatably supported by a bearing.

Next, the operation of the water gate or gutter gate door manual lifting device 1 of the present invention having the above configuration will be described.

First, for example, when the handle 2 is driven to rotate clockwise, a rotating member 7d supporting the planetary gear 7b of the planetary gear unit 7 rotates via the input shaft 5 to which the handle 2 is attached. As a result, the sun gear 7a and the ring gear 7c meshing with the planetary gear 7b receive the force of rotating in the same direction, but the ring gear 7c is connected to the handle shaft 30 via the drive shaft 6, and the handle shaft 30 Is loaded with a load from the door (not shown)
The ring gear 7c does not rotate easily, and the planetary gear 7b rotates in the reverse direction (left rotation direction) with the rotation of the rotating member 7d, so that a stronger right rotation force acts on the sun gear 7a. . Therefore, the torque lever 8 fixed to the sun gear 7a also attempts to rotate in the same direction. However, since the retractable rod 10 biased by the spring 12 is provided on the right side of the torque lever 8, the torque lever 8 is 8 pushes the retractable rod 10 to some extent against the urging force of the spring 12, and rotates as shown by a two-dot chain line in FIG. When the reaction force of the spring 12, that is, the torque acting on the torque lever 8 becomes equal to or larger than the rotation torque of the ring gear 7 c, the sun gear 7 a does not rotate any more, and the planetary gear 7 b rotates clockwise in this time. Then, the ring gear 7c starts rotating. The ring gear 7c rotates the handle shaft 30 via the drive shaft 6, and by the rotation of the handle shaft 30, the door body is pulled up similarly to the conventional one, and the water gate and gutter gate are opened. .

At this time, the gear 14 fixed to the drive shaft 6 is simultaneously driven by the motor 3 of the auxiliary drive device in the manual lifting device 1 for the water gate or gutter gate of the present invention. Although this driving force increases and decreases in accordance with the operating force of the handle 2, the operating force of the handle 2 is merely reduced, and will not operate unless the handle 2 is operated.

Next, the control of the auxiliary driving device will be described. First, when the handle 2 is operated, as described above, the spring 12 contracts according to the force, and the torque lever 8 rotates within a predetermined range. The arcuate gear 8a attached to the torque lever 8 also rotates about the input shaft 5 to rotate the gear 9b that meshes. Since the variable resistor 9 is attached to the gear 9b, the degree of the rotation of the torque lever 8 against the biasing force of the spring 12, that is, the magnitude of the input torque from the handle 2 is determined by the variable resistor 9. Table 9
Is measured electrically. The measured value is input to a control circuit (not shown), and a current value to be supplied to the motor 3 is determined based on the value. When the input from the handlebar 2 is small, the drive shaft 6 is rotationally driven with a small torque, Handle 2
Is large, the drive shaft 6 is driven to rotate with a large torque corresponding to the input.

Therefore, when the handle 2 is operated slowly and with a slight force, or when a strong force acts on the handle 2 in order to resist the load and to turn the handle 2 strongly or to operate at a high speed. In this case, the auxiliary drive device operates according to the operation force, and acts to reduce the burden on the worker. At this time, a signal from a sensor 16 that senses the rotation of the drive shaft 6 and its speed is also input to the control circuit,
If the driving of the motor 3 is controlled based on the measured value of the variable resistor 9, the operation of the auxiliary driving device can be controlled more accurately and precisely.

When the operation of the handle 2 is stopped,
In FIG. 1, a self-locking mechanism built in a lifting device (not shown) located to the left of the handle shaft 30 operates, so that a force in the reverse direction does not act on the drive shaft 6. Therefore, since the torque lever 8 stops at the neutral position and the variable resistor 9 does not sense the movement,
The auxiliary drive does not operate and the drive shaft 6 is not driven.

In order to lower the door, it is sufficient to operate a self-weight lowering switching lever (not shown), and the door lowers to some extent by its own weight. However, the door is
Because it is affected by water pressure, etc.
The door must be forced down. At this time, in the water gate or gutter gate door body manual lifting / lowering device 1 of the present invention, the handle 2 may be driven to rotate in the opposite direction to the above, and the door body is operated by the handle 2 and the operating force thereof. With the driving force of the auxiliary driving device corresponding to the above, the driving force is strongly pushed downward in the completely opposite manner.

At this time, the torque lever 8 rotates in the opposite direction to the above, and pushes the retractable rod 11 on the other side (the left side in FIG. 2) against the urging force of the spring 13, and the torque value at this time Is measured by the variable resistor 9, the driving of the motor 3 of the auxiliary driving device is controlled in the same manner as described above. However, at this time, the direction of power supply to the motor 3 is reversed, and the motor 3 rotates in the reverse direction.

When the door is completely lowered, the drive shaft 6 does not rotate any more. The state at this time is sensed by the sensor 16, and the motor 3 of the auxiliary drive device stops. I have. Therefore, in this state, even if the handle 2 is operated with any force, the auxiliary drive device does not operate, and there is no possibility that an excessive load is applied to the power transmission mechanism or the like. The sensor 16 senses its rotation and speed by passing a through hole 14a formed in the gear 14 in front of it, but the sensor 16 detects the rotation of the drive shaft 6 and its rotation. Any device that can sense the speed may be used.

Although not shown, the handle 2 and the drive shaft 5 are connected via an overload prevention device. When an excessive load is applied to the handle 2, the handle 2 is moved with respect to the drive shaft 5. And idle.

As described above, the manual lifting device 1 for a water gate or gutter gate according to the present invention operates.

In the above description, the drive shaft 6 is connected to the handle shaft 30 of the lifting / lowering device main body A provided in advance at a water gate or a gutter gate, and the door manual lifting / lowering device 1 is retrofitted to the existing lifting / lowering device main body A. Although an example is shown, these are previously set in the lifting device main body A.
It may be integrated into the inside.

Although the above description has been made on the assumption that the door body is mounted on a rack type lifting apparatus, the door body manual lifting apparatus 1 of the present invention raises and lowers the door body in accordance with the magnitude of the input from the handle 2. The gist of the invention is that the drive shaft to be driven is auxiliary-driven, and the suspension means of the door body is not limited to the illustrated one, and may be, for example, a chain or a wire rope. In this case, since the tightening force for pressing the door body downward does not act, the above sensor 16
Need not be provided.

[0038]

As described above, the present invention according to claim 1 of the present invention provides an auxiliary driving device for generating a torque corresponding to the operating force of a handle in a manual lifting device of a door body of a water gate or a gutter gate. By incorporating, the burden on the worker is reduced, and the working time required for opening and closing is also reduced. This also reduces the hassle of regular opening and closing inspections,
Combined with the reliable lifting and lowering operation of the door body due to the application of the driving force of the auxiliary driving device, the safety is further improved.
In addition, since the door can be driven up and down with a light force, it can be used for relatively large water gates and gutters, which were difficult to manually operate in the past, and introduced to non-electrified areas and areas where electrification work is regulated. Will be achieved.

According to the second aspect of the present invention, the rotation of the input shaft is transmitted to the drive shaft at an increased speed via the planetary gear device, thereby reducing the burden on the operator, particularly in the later-installed manual lifting device for the door body. This has the effect of further reducing the working time.

According to the third aspect of the present invention, in addition to the effect of the first aspect of the present invention, the operation is further enhanced by adding control means of the auxiliary drive device based on the rotation of the drive shaft and the rotational speed thereof. The effect of being surely performed is obtained.

According to a fourth aspect of the present invention, there is provided a door-body manual lifting and lowering device having the effects of the first aspect of the present invention by providing a storage battery or a generator as a power source of the auxiliary driving device.
The effect is obtained that it can be realized at low cost without breaking the surrounding environment due to the construction of the overhead wire.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a door body manual lifting / lowering device for a water gate or a gutter gate according to the present invention.

FIG. 2 is a cutaway front view of a main part of the door body manual lifting device shown in FIG. 1;

FIG. 3 is a side view of a lifting device main body to which the manual lifting device of the present invention is attached.

FIG. 4 is a simplified front view of a conventional example.

FIG. 5 is an enlarged sectional view taken along line AA of FIG. 4;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 door body manual lifting device 2 handle 3 motor 3a motor shaft 3b gear 4 casing 5 input shaft 6 drive shaft 7 planetary gear device 7a sun gear 7b planetary gear 7c ring gear 7d rotating member 8 torque lever 8a arc gear 9 variable Resistor 9a Shaft 9b Gear 10,11 Retracting rod 12,13 Spring 14 Gear 15 Connecting member 16 Sensor 17,18 Shaft 17a, 17b, 18a, 18b Gear 19,20,21 Key 23,24,25,26,27 Bearing 33 Rack bar A Lifting device main body

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masae Nishiwaki 2-26-7 Shinukijima, Konohana-ku, Osaka-shi Inside Hanshin Motor Co., Ltd. (72) Inventor Hideyuki Ishii 2-26-7, Shinukijima, Konohana-ku, Osaka-shi Hanshindo (56) References JP-A-7-224417 (JP, A) JP-A-2-13928 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E02B 7 / 20 109 E02B 7/36

Claims (4)

(57) [Claims] 1. A planetary gear device is provided between an input shaft on which a handle is mounted and a drive shaft connected to a lifting device side of a door body, wherein the planetary gear device has a central sun gear having an input shaft. The planetary gear meshed with the sun gear is rotatably supported on one side of a rotating member fixed to the input shaft, and an outer ring gear meshed with the planetary gear is fixedly connected to the drive shaft. The sun gear is integrally provided with a torque lever that rotates left and right within a predetermined range according to the torque applied to the sun gear, and the torque at this time is electrically connected to the vicinity of the torque lever. An auxiliary drive device having a motor is rotatably engaged with the drive shaft so that the drive shaft can be rotationally driven. The motor of the auxiliary drive device is connected to the variable resistor. Based on measurement By being driven and controlled, the lifting device, the door body manual lifting device of sluices and trough Gate, characterized in that is adapted to be auxiliary drive according to the magnitude of the input from the steering wheel. 2. The manual lifting and lowering of the gate of a floodgate or gutter gate according to claim 1, wherein the rotation of the input shaft is transmitted to the drive shaft at an increased speed via a planetary gear unit. apparatus. 3. The manual lifting device for a water gate or gutter gate according to claim 1, further comprising control means for an auxiliary driving device based on the rotation of the driving shaft and the rotation speed thereof. 4. The manual lifting device for a water gate or gutter gate according to claim 1, wherein a storage battery or a generator is additionally provided as a power source of the auxiliary driving device.