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1. 发明专利

JPH0769276A FLUCTUATION ABSORBING DEVICE AT CARGO HANDLING ON SEA 失效
公开(公告)号：JPH0769276A
公开(公告)日：1995-03-14
申请号：JP24032293
申请日：1993-09-02
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： YASUDA TETSUYA , SUZUKI TOSHIYUKI , TANIDA KOJI
IPC分类号： B63B27/10
摘要： PURPOSE:To absorb relative displacement in the vertical direction between a load suspended by means of a crane and a material transport ship at cargo handling on the sea so as to facilitate operation of the crane. CONSTITUTION:A fluctuation absorbing cylinder 12 is provided on a crane 2 of a marine floating body 1, and hence the delivering quantity of a rope 6 wound up by means of a winch 9 can be adjusted. The working oil side of the fluctuation absorbing cylinder 12 is communicated to an accumulator 16, the accumulator 16 is connected to an air tank 17, and cushioning function due to air spring effect is added to the fluctuation absorbing cylinder 12 by a passive air spring mechanism 18. An active control force generating device 19 is connected to the fluctuation absorbing cylinder 12 so as to give it active control force by the discharge quantity from a variable delivery pump. The relative speed between a load 11 suspended with the crane 2 and a material transport ship 10 is controlled so as to conform to the indication by the crane operator, for load elevatable speed.

2. 发明专利

JPH0648378A STICK MATERIAL HANGING-DOWN DEVICE 失效
公开(公告)号：JPH0648378A
公开(公告)日：1994-02-22
申请号：JP22501792
申请日：1992-07-31
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： TAKAHASHI NORIO , YASUDA TETSUYA
IPC分类号： B63B22/00
摘要： PURPOSE:To provide a stick material hanging-down device which keeps both the hanging-down force and the up and down change amount of a hanging-down stick material within a proper range and can make the strengthwise design load of the hanging-down stick material small and can conduct support without causing the damage of the stick material and its upper end connection portion. CONSTITUTION:A regulating valve 21 is provided between a fluid cushion mechanism 13 and an accumulator 20, and the amplitude of the up and down movement speed and the amplitude of the up and down movement displacement of a hanging-down stick material are detected by means of detectors 26, 27, and the opening of the regulating valve 21 is controlled by means of the displacement controller 29 of a controller 28. The flow passage resistance of oil that flows into/out of the fluid cushion mechanism 13 is changed, and by generating passively proper resistance force that is in accordance with the movement speed of the oil, the stick material is supported by means of the joining force of spring force and resistance force. As a result, load change generated between the fluid cushion mechanism 13 of a floating body 11 and the hanging-down stick material 17 is reduced by means of a simple mechanism.

3. 发明专利

JPH0858684A OSCILLATION ABSORBING DEVICE FOR UNDERWATER INSTALLATION AND LIFTING WORK FOR LONG-SIZE SUSPENDED MATERIAL 失效
公开(公告)号：JPH0858684A
公开(公告)日：1996-03-05
申请号：JP22268394
申请日：1994-08-25
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： YAMAMOTO YOSHITERU , HOSHINO SHUJI , YASUDA TETSUYA
IPC分类号： B63B35/00 , B63B39/00
摘要： PURPOSE: To efficiently install and lift a long-size suspended material under the oscillation of a large body afloat on water by absorbing relative displacement between the body and the material. CONSTITUTION: A tower is assembled and erected on a body 1 afloat on water. The upper section of the tower 2 is provided with an upper oscillation absorption cylinder mechanism 13 having an upper active control force generation device 25 on an upper oscillation absorption cylinder 20. Also, an upper block support structure 10 with an upper block 3 is provided on the mechanism 13, so as to be movable in a vertical direction. Furthermore, a wire rope 5 wound around a winch 4 on the tower 2 is extended to the upper block 3 for suspending a hook 6. Also, a lower oscillation absorption cylinder mechanism 14 formed out of a lower oscillation absorption cylinder 29 and a lower active braking force generation device 37 is laid at the right and left sides of the tower 2. Then, the upper and lower oscillation absorption cylinder mechanisms 13 and 14 are connected to each other via a hydraulic fluid pressure connecting tube 15. Thereafter, a wire rope 12 with one end fixed to a slide support seat 11 is extended to a block 31 at the end of the piston rod of the lower oscillation absorption cylinder 29, and the other end of the rope 12 is fixed to the tower 2.

4. 发明专利

JPH0769279A FLUCTUATION ABSORBING DEVICE FOR SUBMERGED INSTALLATION AND WITHDRAWAL OF LENGTHY SUSPENDED OBJECT 失效
公开(公告)号：JPH0769279A
公开(公告)日：1995-03-14
申请号：JP24212193
申请日：1993-09-03
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： YASUDA TETSUYA , HOSHINO SHUJI
IPC分类号： B63B35/44 , E21B19/09
摘要： PURPOSE:To absorb fluctuation of the floating body on a water floating body, and enable a lengthy suspended object to be efficiently installed or withdrawn under large fluctuation of the floating body. CONSTITUTION:A tower 2 is assembled on a water floating body l. A winch 4 is provided in the tower 2, and an upper pulley supporting structure 11 is supported with the top part of the tower 2 through hook flutuation absorbing cylinders 12. Further, a slide supporting base 13 is provided, and this and the upper pulley supporting structure 11 are connected to wire ropes 17 through supporting base fluctuation absorbing cylinders 14. Fluctuation of the floating body is absorbed by the function of the hook fluctuation absorbing cylinders 12 and the supporting base fluctuation absorbing cylinders 14.

5. 发明专利

JPH0717469A ROLL ABSORBING DEVICE OF FLOATING BODY ON THE SEA 失效
公开(公告)号：JPH0717469A
公开(公告)日：1995-01-20
申请号：JP19095393
申请日：1993-07-05
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： YASUDA TETSUYA , ARIKAWA TAKAMASA , SHIBAMOTO MASAHARU
IPC分类号： B63B35/44 , B63B35/00 , F16F9/50 , F16F15/02
摘要： PURPOSE:To improve the workability of the in-water suspending work of a heavy article by weakening the strength of the spring of a load supporting cylinder to improve the cushioning function even when the weight of the heavy article suspended in water is increased. CONSTITUTION:A heavy article 9 is suspended and supported by a load supporting cylinder 3 provided on a buoyant body 1 through a rope 10. The cushioning function is provided by applying the pressure of an air tank 8 to the working oil in the pressure chamber on the head side of the load supporting cylinder 3. A device 14 to generate the active controlling force by adjusting the pressure of the pressure chambers A, B on each side of the piston 15 is connected to the load supporting cylinder 3. A pump 17 of variable displacement to feed the pressure oil to the respective pressure chambers A, B of the active controlling force generating device 14 is connected through the closed circuit. A control panel 18 to control the discharge flow rate of the pump 17 of variable displacement to generate the specified active controlling force is provided.

6. 发明专利

JPH05690A HULL HEAVING REDUCING DEVICE 失效
公开(公告)号：JPH05690A
公开(公告)日：1993-01-08
申请号：JP17777191
申请日：1991-06-24
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： USUHA SHIGEMI , YASUDA TETSUYA , YAMASHITA SEIYA
IPC分类号： B63B39/03
摘要： PURPOSE:To improve the safety and efficiency of operation by reducing the heaving of a hull in which the operation is carried out under the stopped condition on the ocean. CONSTITUTION:Antiheaving tanks 2 are provided on the bow and stern of a hull 1. A duct 6 provided on the sidewall of the antiheaving tank 2 is opened to the lower portion of a side shell plate 3 so that the sea water can freely come in and out of the tank 2. Also, the antiheaving tank 2 is provided on the upper portion with an opening 7 through which air comes in and out. When the hull 1 heaves, the phase of the pitch of the sea water in the tank 2 is adapted to deviate from that of the hull 1, so that large damping force is generated and thereby an opening area A0 of the duct 6 in the pitch of the hull 1 is adjusted by a slide type regulator 8.

7. 发明专利

JP2000108985A MOORING BLOCK DEVICE FOR MEASURING MOORING FORCE 失效
公开(公告)号：JP2000108985A
公开(公告)日：2000-04-18
申请号：JP27831298
申请日：1998-09-30
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： NAGATA YOSHINORI , YASUDA TETSUYA
IPC分类号： B63B21/18
摘要： PROBLEM TO BE SOLVED: To measure mooring force acting upon an anchor chain, easily and accurately in an anchor chain blocking place. SOLUTION: The blocking metal base 4 of rectangular frame shape for inserting through and positioning an end link 1a of an anchor chain 1 is installed on an upper end flange 3 of a hose pipe 2. A blocking pin 5 is inserted through the end link 1a of the anchor chain 1, and both ends are placed on the blocking metal base 4. A strain gauge 7 is fitted to the center part lower face of the blocking pin 5. Mooring force is transmitted as bending load to the blocking pin 5 through the anchor chain 1 and detected by the strain gauge 7.

8. 发明专利

JPH07158555A OCEAN STRUCTURE HAVING WAVE POWER UTILIZING FUNCTION 失效
公开(公告)号：JPH07158555A
公开(公告)日：1995-06-20
申请号：JP33943193
申请日：1993-12-03
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , JAPAN MARINE SCI & TECHNOL CEN
发明人： MIYAZAKI TAKEAKI , WASHIO YUKIHISA , YAMAGUCHI HITOSHI , HOTTA TAIRA , YOKOZAWA HITOSHI , USUHA SHIGEMI , YASUDA TETSUYA , MUTO HIROSHI
IPC分类号： B63B35/00 , F03B13/14 , F03G7/00
摘要： PURPOSE:To suppress the fluctuation in a wavy condition by providing wings with a necessary form and size at the left side and the right side of an ocean structure main body, at the underwater position, in a structure provided with an air chamber at the front end of the ocean structure main body, and a wave energy converting device at the upper side of the air chamber. CONSTITUTION:An air chamber 3 is provided at the front end of an ocean structure main body 1 having a buoyancy chambers 2 and 12, and openings 4 are formed at the lower front end of the air chamber 3, air holes 5 are provided at the ceiling of the air chamber 3, and power chambers 6 are provided at the outer side. By utilizing the power of the air in the air chamber 3 which is boosted when the waves surge, air turbines provided in the power chambers 6 are rotated, so as to drive an energy converting device 7. In order to suppress the up and down movement by the waves 9 to reduce the variation of the water level in the air chamber 3, plate form of wings 15 are provided in the horizontal direction in the underwater position at the sides of the ocean structure main body 1. Consequently, the movement in the wavy condition of the ocean structure is reduced, and the absorbing efficiency of the wave energy is improved.

9. 发明专利

JPH06195132A TENSILE FORCE REDUCTION CONTROL METHOD FOR HANGING LONG OBJECT FROM MARINE CONSTRUCTION 失效
公开(公告)号：JPH06195132A
公开(公告)日：1994-07-15
申请号：JP35800892
申请日：1992-12-25
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： TANIDA KOJI , USUHA SHIGEMI , YASUDA TETSUYA
IPC分类号： F16F9/50 , B63B35/44 , G05D3/12 , G05D15/00
摘要： PURPOSE:To reduce the hanging tensile force of a long object hung from marine construction when the marine construction is vertically displaced. CONSTITUTION:A supporter 2 provided with a positive control power generator 4 is provided on the marine construction 1. A long object 3 is hung from the supporter 2 through a rope. A displacement amount Z-ZS at the time of relatively displacing the marine construction 1 and the long object 3 and vertical moving speed Z1 of the long object 3 are calculated. The calculated relative displacement amount Z-ZS and the vertical moving speed Z1 of the long object 3 are fed back to the supporter 2, supporting stress is applied to the supporter 2, and the tensile force is reduced and controlled.

10. 发明专利

JPH06101391A ROD HANGDOWN DEVICE 失效
公开(公告)号：JPH06101391A
公开(公告)日：1994-04-12
申请号：JP12912892
申请日：1992-05-21
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： TAKAHASHI NORIO , YASUDA TETSUYA
IPC分类号： E21B19/02 , E21B19/09
摘要： PURPOSE:To prevent breakage of a rod material or a float by forming a supporting mechanism for a rod material hangdown device from a liquid pressure cylinder elongating and contracting in compliance with the vertical motions of the rod material, a pneumatic spring in connection with the cylinder, and a flow path adjusting mechanism interposed between them. CONSTITUTION:In case the vertical motion speed of a pipe 3 is low to allow a pneumatic spring 22 to absorb the vertical motions, a valve 13 of a supporting mechanism 2 is opened fully, so that the pressure in a liquid pressure cylinder 12 acts directly into an air tank 15, and the pipe 3 and float 1 are precluded from risk of breakage. When the pneumatic spring 22 can no more absorb the vertical motions of the pipe 3, the relative displacement of the float 1 with pipe 3 sensed by a displacement sensor 25 of a control device 16 is calculated by a calculation part as the relative speed, and the absolute velocity is calculated from the vertical acceleration of the float 1 sensed by an acceleration sensor 26, and the absolute velocity of the vertical motions of the pipe 3 is calculated. Then the differential pressure target value for the valve 13 is calculated, and on the basis thereof the degree of opening of the valve 13 is lessened. If the vertical motions of the pipe 3 lessen, the valve 13 is driven in the direction of enlarging the degree of opening of the valve 13.

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