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1. 发明专利

JP2000327272A HOIST 失效
公开(公告)号：JP2000327272A
公开(公告)日：2000-11-28
申请号：JP13375799
申请日：1999-05-14
申请人： HITACHI LTD
发明人： SAITO KAZUMASA
IPC分类号： B66D1/54 , B66D1/46
摘要： PROBLEM TO BE SOLVED: To easily measure an extending amount without removing a wire rope from a hoist body by using an initially detected rotation angle detected at a prescribed height position of a hook block as a reference value, and calculating the extending amount of the wire rope by comparing the reference value and a subsequent detected rotation angle in a comparing calculating portion. SOLUTION: A rotation angle of a motor 1 is detected by a rotation angle detector 4, and the detected rotation angle is calculated by a comparing calculating portion 9. A detection signal of a limit mechanism 10 or a position detecting sensor that indicates that a hook block 6 reaches a defined prescribed height position is taken into the comparing calculating portion 9, and the detected rotation angle at the prescribed height position of the hook block 6 is specified. An initially detected rotation angle detected at the prescribed height position of the hook block 6 is stored as a reference value on a storage portion of the comparing calculating portion 9, the reference value and a subsequent detected rotation angle value are compared in the comparing calculating portion 9. Thus, an extending amount of a wire rope can be calculated without removing the wire rope from a winding drum.

2. 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.

3. 发明专利

JPH10194682A INVERTER DRIVE HOIST OF WIRELESS REMOTE OPERATION 失效
公开(公告)号：JPH10194682A
公开(公告)日：1998-07-28
申请号：JP114197
申请日：1997-01-08
申请人： HITACHI LTD
发明人： SAITO KAZUMASA , YOSHIDA KAORU
IPC分类号： B66D1/46 , B66D3/20 , B66D3/26
摘要： PROBLEM TO BE SOLVED: To set the driving parameter of an inverter for the ground without necessity of climing on a crane by providing a mechanism to input an operational command of a hoist and a numerical data to a wireless remote operation transmitter. SOLUTION: An operator presses an 'upper low' push button 1a of a wireless remote operator transmitter 1. This transmitter 1 transmits an electric wave 7 from a turning angle of a winding low speed setting volume 1b by adding a value corresponding to it as numerical information to a rotational direction signal. The electric wave 7 is constantly transmitted during operation of the push button 1a. A wireless receiving part 3 receives it by a receiving antenna 9 and gives it to a control part 4. In the control part 4, numerical information is extracted to a storage region 4a from input information and gives it to an inverter part 5 as target output frequency. Additionally, the rotational direction signal is simultaneously given.

4. 发明专利

JPH0925091A HOIST FOR DRIVING INVERTER OF INTERLOCKING TYPE 失效
公开(公告)号：JPH0925091A
公开(公告)日：1997-01-28
申请号：JP17318795
申请日：1995-07-10
申请人： HITACHI LTD
发明人： SAITO KAZUMASA , YOSHIDA KAORU
IPC分类号： B66D1/40
摘要： PROBLEM TO BE SOLVED: To provide an inverter driving hoist capable of being applicable without any addition of equipment thereto in the case of co-hoist interlocking operation performed while stabilizing the posture of an object to be conveyed, and thereby enabling its variable speed operation, shockless operation and the like. SOLUTION: A control part 4 of a hoist 3 for driving an inverter 5 is provided with a communication part which sends the position data, operation speed data and operation data of a hook block 7 to outside, or receives input data from outside. Through the communication part the delivery of data is carried out between the respective hoist control parts 4 interlocking with each other.

5. 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.

6. 发明专利

JPH0769589A HOIST FOR INDUCTION MOTOR DRIVEN WITH SPEED SENSOR-LESS VECTOR CONTROL INVERTER 失效
公开(公告)号：JPH0769589A
公开(公告)日：1995-03-14
申请号：JP21950993
申请日：1993-09-03
申请人： HITACHI LTD
发明人： SAITO KAZUMASA , INABA YUKIHIRO , ISHIKAWA SATOSHI , SHIMODAIRA TOYOHISA , HANE HITOSHI
IPC分类号： B66D1/48
摘要： PURPOSE:To improve operability and controllability during low frequency operation with the application of small type design and at a low price by employing a speed sensor-less vector control inverter for an inverter to drive a hoist. CONSTITUTION:A hoisting motor 2 for an inverter driven hoist is actuated with a speed sensor-less vector control inverter 1. A control section 3 outputs a control signal to the inverter 1, according to a rotation direction instruction and a rotation speed instruction from an operation section 4, and controls a brake 8, upon receipt of an operation signal or the like from the inverter 1. Furthermore, the control section 3 receives a signal regarding motor rotation state from an encoder 6, and performs an operation monitor or a hook position detecting function as a hoist, together with an upper limit switch and a motor thermal protector 7. The operation section 4 inputs hoisting up and clown instructions and a speed instruction in the instruction input section thereof for causing the hoist to perform an intended operation. A discharge resistor 5 is used to consume regenerative power generated during regenerative operation.

7. 发明专利

JPH0623987B2 失效
公开(公告)号：JPH0623987B2
公开(公告)日：1994-03-30
申请号：JP22574284
申请日：1984-10-29
申请人： HITACHI LTD
发明人： MAEZAWA HIROYUKI , SAITO KAZUMASA
IPC分类号： G06F9/06 , G06F17/50 , G06F15/60

8. 发明专利

JPH04112198A DETECTION OF OVERLOAD 失效
公开(公告)号：JPH04112198A
公开(公告)日：1992-04-14
申请号：JP22534690
申请日：1990-08-29
申请人： HITACHI LTD
发明人： SAITO KAZUMASA , INABA YUKIHIRO
IPC分类号： B66D1/58 , H02P27/06
摘要： PURPOSE:To simplify the detection of overload by setting an inverter at an output voltage with which only the torque less than a rated value is outputted with the low speed frequency and compulsorily operating the inverter at a low speed for a prescribed time in hoisting operation and detecting the existence of the revolution of an electric motor during this time. CONSTITUTION:Operation instruction is carried out by a two-stage motion type pushing button switch, and a slow speed pushing button switch is set ON at all times in the aspect of structure. The instruction is inputted in the form of the slow speed instruction and high speed instruction to an inverter through a control part. The inverter starts the frequency output by the instruction. Acceleration at a breath to a high speed is not carried out even for a high speed instruction, and the operation with a low speed set frequency is carried out for a prescribed time. When the revolution of an electric motor is detected during this time, the rated load or less is judged in case of revolution, while overload is judged in case of standstill. Accordingly, the function of the inverter can be utilized without adding special devices, and the detection of overload can be executed at a low cost.

9. 发明专利

JPH03111397A INVERTER CONTROL WINCH 失效
公开(公告)号：JPH03111397A
公开(公告)日：1991-05-13
申请号：JP24870689
申请日：1989-09-25
申请人： HITACHI LTD
发明人： SAITO KAZUMASA , INABA YUKIHIRO
IPC分类号： B66D1/46
摘要： PURPOSE:To relieve shock to an object to be lifted and its swing likely when a winch stops to a great extent by controlling the brake on the basis of a frequency attainment signal to be emitted when the frequency given out of an inverter exceeds a specified level. CONSTITUTION:When a push button PB is returned from the second to first step in the process to attain deceleration and stop, a control H1 is opened, and an inverter begins deceleration toward the frequency of low speed operation, to reach then the frequency of low speed operation. If the push button PB is restituted from the first step, a contact L1 opens to bring about start of deceleration toward the stop. At passage of the frequency at which a frequency attainment signal AR signal set for controlling the brake Br is given, the frequency attainment signal AR signal retained till the time will be interrupted, and a contact AY1 be opened to commence application of the brake Br.

10. 发明专利

JPH02236666A AUTOMATIC CASH TRANSACTION METHOD BY HISTORY INFORMATION 失效
公开(公告)号：JPH02236666A
公开(公告)日：1990-09-19
申请号：JP5642689
申请日：1989-03-10
申请人： HITACHI LTD
发明人： SAITO KAZUMASA
IPC分类号： G06Q40/00 , G06Q40/02
摘要： PURPOSE:To accelerate a customer transaction operation and to improve efficiency by storing transaction history information and customer identification information, and providing a transaction picture and a transaction procedure to every customer. CONSTITUTION:The customer identification information and history information for the customer at every transaction are stored in an information memory 5, and when a transaction is started by throwing in a medium such as a card 1, etc., the transaction picture with high frequency is automatically selected and displayed by retrieving the transaction history information of the customer, and the customer input information of a past transaction is also displayed. The history information at every transaction is provided with transaction specification, a transaction date, a transaction amount, and each item of transfer information when a transaction is a transfer transaction, and furthermore, the transaction picture with high frequency for the customer is displayed by providing the number of times of past transactions at every transaction specification, and also, the past customer input information is displayed. Thereby, it is possible to attain the acceleration of an operation, high efficiency, and the labor saving of input information.

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