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1. 发明专利

JP2001240371A ELECTRIC HOIST 失效
公开(公告)号：JP2001240371A
公开(公告)日：2001-09-04
申请号：JP2000060397
申请日：2000-03-01
申请人： HITACHI LTD
发明人： ISHIKAWA SATOSHI , HATTORI NAOKI
IPC分类号： B66C13/22 , B66D1/46
摘要： PROBLEM TO BE SOLVED: To reduce waste in a controller. SOLUTION: A basic specification control part having an inverter control circuit for winding for controlling an inverter driving part for winding and an inverter control circuit for transverse movement for controlling an inverter driving part for transverse movement, and a specified specification controlling part for controlling plural outputs and inputs such as a co-hoisting operation, and an automatic detection operation for a hoisted cargo height as specified specifications other than inverter control are provided individually in this hoist machine provided with an electric motor for the winding for hoisting the hoisted cargo vertically, an electric motor for the transverse movement for transferring the cargo transversely, the inverter driving part for the winding for driving the electric motor for the winding, the inverter driving part for the transverse movement for driving the electric motor for the transverse movement, and an external operation part for directing operations for the hoisting-up and -down of the electric motor for the winding and an operation for the transverse movement of the electric motor for the transverse movement.

2. 发明专利

JP2000007285A INVERTER DRIVE HOIST 失效
公开(公告)号：JP2000007285A
公开(公告)日：2000-01-11
申请号：JP16950898
申请日：1998-06-17
申请人： HITACHI LTD
发明人： HATTORI NAOKI , ISHIKAWA SATOSHI
IPC分类号： B66D1/46
摘要： PROBLEM TO BE SOLVED: To improve the safety by judging the stop of a motor by a signal of an encoder connected with the motor for winding up after operating and outputting a mechanical brake and continuing the output of an inverter until the stop is detected to maintain output torque of the motor. SOLUTION: After receiving a stop command of a hoist operation machine 6, a hoist controller 1 sends a step deceleration start command to an inverter 2, performs deceleration processing until it reaches a start frequency, and maintains a frequency output after reaching the start frequency. Since torque is set for rated load, a motor for winding up 3 prevents the drop of a cargo while an output frequency of the inverter 2 is maintained. Moreover, the hoist controller 1 monitors an output frequency of the inverter 2 and gives instructions for output stop of the inverter 2 after detecting the stop of a mechanical motor by an encoder signal at the same time when the output frequency reaches the start frequency. A frequency output of the inverter 2 is maintained until the output stops, and torque output of the motor for winding up is maintained.

3. 发明专利

JPH11203263A INTER-SYSTEM DEVICE MANAGEMENT METHOD 失效
公开(公告)号：JPH11203263A
公开(公告)日：1999-07-30
申请号：JP828798
申请日：1998-01-20
申请人： HITACHI LTD
发明人： ISHIKAWA SATOSHI , MIYATA KAZUHISA , BANDO TOSHIYUKI , TAKEYABU HIDEKI
IPC分类号： G06F15/16 , G06F15/177
摘要： PROBLEM TO BE SOLVED: To prevent the breakdown of a file due to an erroneous operation by registering the devices whose constitutions need to be changed in a management list and making each system recognize each device having its constitutions to be changed in the management list and then change relevant constitutions. SOLUTION: For instance, a definition command is inputted from a system A12 to define the symbol name of a device whose constitution needs to be changed at a device information part 11-1 of a management list 11 and a work- in-process flag 11-3-1 is turned on. Then an execution command is inputted from a system B13, for example. A device management function part 13-1 reads the part 11-1 and a system information part 11-2 in its own system as long as the flag 11-3-1 is turned on, and changes the constitution of the device of the part 11-1. When the change processing of all devices succeed, a flag part 11-2-2 corresponding to its own identifier 11-2-1 of the read part 11-2 is turned on. In the same way, the execution commands are also inputted from other systems.

4. 发明专利

JPH10167680A MOTOR-DRIVEN WINCH 失效
公开(公告)号：JPH10167680A
公开(公告)日：1998-06-23
申请号：JP32818896
申请日：1996-12-09
申请人： HITACHI LTD
发明人： ISHIKAWA SATOSHI , YOSHIDA KAORU
IPC分类号： B66D1/46 , B66D3/20
摘要： PROBLEM TO BE SOLVED: To promote a sharp improvement in a usability by installing a first connection connecting a receiver of a wireless installation and a control unit and a second connection connecting a wire pendant device and the control unit separately in a winch body. SOLUTION: A radio signal generated by a transmitter 4 is received by a receiver 6, and this signal is inputted into a selector 17 via a connection 15. In addition, an operation indicating signal by a wire pendant device 3 is inputted into the selector 17 via another connection 16. A selector switch 21 indicates a micro processing unit 18 to judge of whether either of a radio operation by the receiver 4 or an operation by the wire pendant device 3. In a state that the selector switch 21 is turned off, this micro processing unit 18 selects an operating signal out of the ratio receiver 6, recognizing operation by a radio operation. Likewise, in a state that the selector switch 21 is turned on, the micro processing unit 18 selects the operating signal out of the wire pendant device 3, recognizing operation by this wire pendant device 3.

5. 发明专利

JPH0834597A OVERLOAD PREVENTING DEVICE FOR INVERTOR HOIST 失效
公开(公告)号：JPH0834597A
公开(公告)日：1996-02-06
申请号：JP17226194
申请日：1994-07-25
申请人： HITACHI LTD
发明人： YOSHIDA KAORU , ISHIKAWA SATOSHI
IPC分类号： B66D1/58
摘要： PURPOSE:To prevent overload of an invertor hoist by automatically measuring mass data for a reference specific load in a measuring mode, storing the same in memory, comparing the mass data with reference data as mass information stored in memory, and by stopping the hoisting operation if the mass data is greater. CONSTITUTION:A main control device 11 delivers a hoisting operation signal to an invertor 1, and a brake releasing operation signal to a brake 3 (electromagnetic switch 10). Thereafter, load data taken up from an invertor device 1, are stored in an volatile memory in a setting mode, and is used as mass data for a specified load, which are used as a reference value in an operating mode. In the operating mode, the stored reference data are read, and is compared with taken-up data. If the take-up data is less, the hoisting operation is continued. If the take-up data is greater, the hoisting operation is stopped. and a breaking signal is delivered to a brake 3 (electromagnetic switch 10). Thus, it is possible to prevent overload with the use of a simple structure.

6. 发明专利

JPH0753180A INVERTER HOIST 失效
公开(公告)号：JPH0753180A
公开(公告)日：1995-02-28
申请号：JP20508993
申请日：1993-08-19
申请人： HITACHI LTD
发明人： HANE HITOSHI , INABA YUKIHIRO , ISHIKAWA SATOSHI , SAITO KAZUMASA
IPC分类号： B66C13/16 , B66C13/23 , B66D1/46 , B66D3/20
摘要： PURPOSE:To provide an inverter hoist with which the reduction of constitution parts, dimension, and cost, and the simplification of maintenance can be achieved, by carrying out the operation speed selection corresponding to the load and the overload detection according to the input electric current value of an electric motor. CONSTITUTION:An inverter device 3 which is provided with the function for transmitting the information of the input electric current of an electric motor 10 to a control part 14 is mounted on an inverter hoist 15, and a control system which can carry out the operation speed selection corresponding to the load and the overload detection, according to the information of the input electric current of the electric motor 10 which is supplied from the inverter device 3 is installed. Further, the information of the input electric current of the electric motor 10 is taken into a microcomputer part 12 in a control part through an electric current sensor 7 and a calculation part 6 which are installed in the inverter device 3.

7. 发明专利

JPH06305691A CONTROL INPUT DEVICE FOR ELECTRIC WINCH 失效
公开(公告)号：JPH06305691A
公开(公告)日：1994-11-01
申请号：JP9574993
申请日：1993-04-22
申请人： HITACHI LTD
发明人： NAKAMURA MASAYOSHI , ISHIKAWA SATOSHI
IPC分类号： B66D1/46
摘要： PURPOSE:To provide a control input device for a winch which detects ant input signal of a push button switch with a current sensor. CONSTITUTION:At a winding-up push-button switch 1 or a winding-down push- button switch 2, a control input signal is detected by a current sensor 3 or 4. By this, by replacing a conventionally used relay with the current sensors 3 and 4, malfunction of a winch due to deposition to a contact can be prevented, and reliability is improved. Also, by giving magnetic insulation, mechanical life and electrical life can be ignored, which simplifies constitution.

8. 发明专利

JPH1111864A INVERTER HOIST 失效
公开(公告)号：JPH1111864A
公开(公告)日：1999-01-19
申请号：JP17350497
申请日：1997-06-30
申请人： HITACHI LTD
发明人： ISHIKAWA SATOSHI , SAITO KAZUMASA
IPC分类号： B66C13/22 , B66C15/00 , B66C15/04 , B66D3/20
摘要： PROBLEM TO BE SOLVED: To improve the workability and operatability in the transgressing and travelling limit operation, by connecting the inputs of the limit switches in parallel in a zonal direction and a meridional direction to input the same to a hoist controller, and inputting the recognition of direction from a push- button. SOLUTION: In a case when an east input and a zonal high speed input of a push-button 1 is input to a hoist controller 2, a controller instructs the east high speed to an inverter for transversing 3. The power is supplied to the invertor for transversing 3, and a motor 4, and the invertor hoist 11 is moved in an east direction at a high speed. In a case when the inverter hoist 11 reaches an operating area of a transversing limit switch 5, the switch 5 is operated to be input to the hoist controller 2, so that the safety in operation can be achieved. The controller 1 recognizes the east input from the push-button 1, and the operation of the transversing limit switch 5, follows through the east high-spped operation instruction to the inverter 3, and stops the east high- speed operation, or instructs the east low-speed operation, so that the operatability is improved.

9. 发明专利

JPH08119585A DRIVING DEVICE AND ELEVATING EQUIPMENT USING THE DRIVING DEVICE 失效
公开(公告)号：JPH08119585A
公开(公告)日：1996-05-14
申请号：JP26038694
申请日：1994-10-25
申请人： HITACHI LTD
发明人： ISHIKAWA SATOSHI , YOSHIDA KAORU
IPC分类号： B66D1/54 , B66D3/22
摘要： PURPOSE: To provide a driving device or an elevating equipment easy in the maintenance work capable of safely treating an abnormal condition. CONSTITUTION: Presence/absence of an abnormality is judged by realizing the logical processing of the operation signal to be given by an operation input device 3 and the detection signal to be outputted from a rotation detecting device 5 by a control device 2. When an abnormality is detected, an abnormality alarm and display device 15 is actuated and an inverter device 1 is controlled so as to operate a driving motor 4 by changing the rotational direction at a low speed with the short period, and then, the lowering operation is achieved at a low speed in response to the operation signal to instruct the lowering of the load.

10. 发明专利

JPH07267589A HOIST OF INVERTER TYPE 失效
公开(公告)号：JPH07267589A
公开(公告)日：1995-10-17
申请号：JP6248094
申请日：1994-03-31
申请人： HITACHI LTD
发明人： ISHIKAWA SATOSHI , SAITO KAZUMASA
IPC分类号： B66D3/20
摘要： PURPOSE:To maintain the cushion start and cushion stop functions in association with the shockless function for a carried object at the time of accelerating and decelerating by stopping automatically the object in the sensing position with a deceleration pattern on the basis of the wind-up and wind-down speeds without taking the coasting distance inherent in the inverter type hoist into consideration. CONSTITUTION:A speed calculation part 6 and a deceleration pattern calculation part 4 are previously provided for an object sensing position. The pattern calculation part 4 receives the rotating speed from the speed calculation part 6, manipulates the sum of the received speed value and the coasting distance from the inverter 19 output being shut to the object stopping, and determines the deceleration pattern in which the obtained value corresponds to the sensing position. A wind-up command is again given from a deceleration pattern correction calculating part 5 to an inverter control part 2 so that the inverter device 19 is operated, and the wind-up command is shut at a speed corresponding to the deceleration pattern, and the operation is stopped automatically when the allowable range of the object sensing position is reached. This achieves precision control of the object position.

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