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41. 发明专利

JP2001233564A ELEVATOR DEVICE 失效
公开(公告)号：JP2001233564A
公开(公告)日：2001-08-28
申请号：JP2000050052
申请日：2000-02-25
申请人： HITACHI LTD
发明人： FUKUSHIMA KENICHI , ONODERA MINORU , SHUDO KATSUHARU , MIYOSHI HIROSHI
IPC分类号： B66B5/14 , B66B7/08
摘要： PROBLEM TO BE SOLVED: To provide an elevator device whose overhead can be set small rela tively under the condition that a fleet angle of a rope with respect to a shieve is kept small. SOLUTION: An elevator device comprises a plurality of ropes 4 for suspending a car 2 and a simple rod 9 connected to each end of the ropes 4 comprises a simple rod retaining means for integrally retaining respective portions of the rod 9, i.e., members 12, 13, support members 14, 16 extended rater than free ends of the simple rods 9, and a load detector 21 that is supported with the support members 14, 16 while positioned outside rather than the free ends and detects loading load of the car 2. The device 21 has a pressing elements 18a that comprises a switch and provided at a bent portion 14a of the member 14, and a contact element 19 provided at a bent portion 16a of the support member 16.

42. 发明专利

JP2001151439A ELEVATOR BALANCING WEIGHT STRUCTURE 失效
公开(公告)号：JP2001151439A
公开(公告)日：2001-06-05
申请号：JP34169799
申请日：1999-12-01
申请人： HITACHI LTD
发明人： HIRANO KAORU , ONODERA MINORU , SHUDO KATSUHARU
IPC分类号： B66B11/00
摘要： PROBLEM TO BE SOLVED: To provide an elevator balancing weight structure capable of determining a space between guide rails without being restricted by the sizes of a guide device and a guide device tightening element, resulting in a smaller space between the guide rails. SOLUTION: In the elevator balancing weight structure, an area occupied by an upper rail guide device for a balancing weight and a tightening element of the upper rail guide device is located under the rotational axis of a pulley mounted on a balancing weight frame. The rail guide device is installed where a horizontal projection of the area crosses that of an area occupied by the pulley and a main rope wound on the pulley.

43. 发明专利

JPH11139702A HYDRAULIC ELEVATOR 失效
公开(公告)号：JPH11139702A
公开(公告)日：1999-05-25
申请号：JP30172797
申请日：1997-11-04
申请人： HITACHI LTD
发明人： WATANABE HARUO , NAKAMURA ICHIRO , SASAKI HIDEKAZU , ARAHORI NOBORU , MATSUDO TAKASHI , SHUDO KATSUHARU , KOJIMA SHIGETO
IPC分类号： B66B9/04 , B66B1/40
摘要： PROBLEM TO BE SOLVED: To make up a safe and low-cost position correcting system capable of quickly opening an elevator door after landing of a cage and quickly starting after the elevator door is closed in cooporation with speed control, when correcting the position of the cage at the time when passengers get on and off the cage, in relation of sinking or floating up of the cage. SOLUTION: In a hydraulic elevator, aside from a check valve provided between a hydraulic pump and a hydraulic cylinder, a normally closed solenoid selector valve is provided parallel to the check valve. When a cage permitting the passengers to get on and off, is started after travelling, control of a motor for driving the hydraulic pump is continued by a position correcting device, and thus a state where the dead weight of the cage is balanced with output of the motor for driving the hydraulic pump, is kept to maintain the position of the cage. In response to the deviation of the position of the cage at the time when passengers get on and off the cage from a reference position of the cage, the pump flow rate supplied to or discharged from the hydraulic cylinder is controlled through the solenoid selector valve.

44. 发明专利

JPH10231067A FLUID PRESSURE ELEVATOR 失效
公开(公告)号：JPH10231067A
公开(公告)日：1998-09-02
申请号：JP3792497
申请日：1997-02-21
申请人： HITACHI LTD
发明人： WATANABE HARUO , NAKAMURA ICHIRO , SASAKI HIDEKAZU , MITSUNE SHUNSUKE , MATSUDO TAKASHI , SHUDO KATSUHARU , KOJIMA SHIGETO
IPC分类号： B66B1/40
摘要： PROBLEM TO BE SOLVED: To perform quick cage position correcting control for a passenger cage settled down or floated up when passengers get in and out, without providing a separate hydraulic source or a fluid control valve. SOLUTION: For a fluid pressure elevator, the flow rate of operating fluid supplied or discharged from a fluid pressure pump 212 via a check valve 210 to a fluid pressure cylinder 20 is controlled to control the speed of the fluid pressure cylinder 201 for controlling the speed of a passenger cage 200. An electromagnetic switch valve 201 is provided in parallel to the check valve 210, which is controlled to be normally open and closed when the passenger cage is stopped. A cage position correcting means 11 controls the flow rate supplied or discharged via the electromagnetic switch valve 211 to the fluid pressure cylinder 201 to be open in accordance with a deviation between the reference position of the passenger cage set for the passenger cage to be stopped and the position of the cage, when passengers get in and out, with the flow rate of the fluid pressure pump 212 controlled and corrects the position of the passenger cage 200.

45. 发明专利

JPH10147477A METHOD FOR CONTROLLING HYDRAULIC ELEVATOR 失效
公开(公告)号：JPH10147477A
公开(公告)日：1998-06-02
申请号：JP30825796
申请日：1996-11-19
申请人： HITACHI LTD , HITACHI MITO ENG KK
发明人： NAKAMURA HIDEHIRO , TABUCHI HIKARI , SHUDO KATSUHARU , UENO AKIO
IPC分类号： B66B1/04
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic elevator controlling method for preventing the vibration caused by the defective lubrication such as running out of oil of the oil seal of a hydraulic jack, which is liable to be generated at a time of resetting from the suspension of a car, improving comfortableness and minimizing an increase in waiting time. SOLUTION: When a hall call (elevator running requiring command) is output, a controller controls a hydraulic jack so as to run the car about 10cm, preliminary operating the car. Through this operation, the lubrication caused by the hydraulic oil between the oil seal section and the plunger section of the hydraulic jack is secured. After that, the car runs to the floor where car calling was made. The preliminary operation mentioned above is done even if such call is made at the same floor that the car is standing by, and after moving up the car about 10cm, the car is moved down to a position where passengers can ride.

46. 发明专利

JPH1059656A HYDRAULIC ELEVATOR 失效
公开(公告)号：JPH1059656A
公开(公告)日：1998-03-03
申请号：JP21708696
申请日：1996-08-19
申请人： HITACHI LTD
发明人： SHUDO KATSUHARU , NAKAMURA ICHIRO , WATANABE HARUO
IPC分类号： B66B9/04
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic elevator improving comfortableness and saving the space in a hoistway by miniaturizing a hydraulic cylinder, and reducing the fluid capacity for reducing the fluctuation quantity of the position of a car when the car of the hydraulic elevator is stopped and passengers get in and out. SOLUTION: The inner diameter d4 of a cylinder tube is set to such a value that no pressure loss is generated on a fluid passing through the gap between the outer diameter of a protective material 12a fixed on the outer periphery of the end plate 12 of the plunger 1 of a hydraulic cylinder and a cylinder tube 13. Gaps δ1 , δ2 are normally maintained so that the end plate 12 is kept in no contact with the inner face of the cylinder tube 13, and a protective material 12a is fixed on the outer periphery of the end plate 12 for protection in case of contact.

47. 发明专利

JPH08133612A FLUID PRESSURE ELEVATOR 失效
公开(公告)号：JPH08133612A
公开(公告)日：1996-05-28
申请号：JP27908994
申请日：1994-11-14
申请人： HITACHI LTD
发明人： SHUDO KATSUHARU , NAKAMURA ICHIRO , WATANABE HARUO , OGASAWARA TAKESHI , TERAMOTO RITSU , SASAKI HIDEKAZU
IPC分类号： B66B1/26 , B66B9/04
摘要： PURPOSE: To suppress the generation of oil beat in piping and reduce acceleration shock to a car at the time of a car ascent/descent start command in a fluid pressure elevator using a bidirectional flow fluid pressure pump and provided with a means for storing fluid pressure energy. CONSTITUTION: In a fluid pressure elevator using a bidirectional flow fluid pressure pump 1 and provided with a fluid pressure energy storage means 10, a throttle 9 is inserted in the pilot passage 27 of a flow control valve 4 in order to slowly open this main valve 4, and the inflow of a pressure fluid to the pilot chamber of the main valve 4 is suppressed to slow down the action speed. The sudden rise of pressure is thereby suppressed, so that the generation of oil beat and oil beat noise in piping is suppressed, and acceleration shock to a car is reduced so as to improve the riding comfort of the fluid pressure elevator and to enable power reduction.

48. 发明专利

JPH0885683A FLUID PRESSURE ELEVATOR 失效
公开(公告)号：JPH0885683A
公开(公告)日：1996-04-02
申请号：JP22296094
申请日：1994-09-19
申请人： HITACHI LTD
发明人： OGASAWARA TAKESHI , NAKAMURA ICHIRO , WATANABE HARUO , ARAKAWA ATSUSHI , SHUDO KATSUHARU , TERAMOTO RITSU
IPC分类号： B66B1/26 , B66B1/40 , B66B9/04
摘要： PURPOSE: To prevent sinkage and flotation of a passenger cage caused by getting-in-and-off of passengers at the time when an elevator stops by engaging a pair of arms with holding means arranged on left and right guide rails by way of driving a driving means at the time when the elevator stops. CONSTITUTION: A passenger car 10 which stops at a story floor platform 30 rotates a starting motor in the counterclockwise direction by a control device 40 before a passenger cage door opens. Consequently, a pair of arms 14 moves in the direction of a guide rail 20 along a guide 17 supported and guided on a bottom part of the passenger car 10 and engaged with a bracket 21 along a guide 23 of the bracket 21. Thereafter, the passenger cap door opens and getting-in-and-off of passengers is started. As dead weight of the passenger car 10 and weight of the passengers are all supported by the guide 17 of the passenger car 10 and the guide 23 of the bracket 21, it is possible to prevent sinkage and flotation of the passenger car 10 at the time of getting-on-and-off of the passengers due to growth of bubbles in a high pressure fluid in a cylinder 1 and expansion and contraction of a rope 8 as the high pressure fluid is supplied from a fluid pressure pump 3 and discharged from the fluid pressure cylinder 1 to a fluid tank 6.

49. 发明专利

JPH0790999B2 失效
公开(公告)号：JPH0790999B2
公开(公告)日：1995-10-04
申请号：JP6875490
申请日：1990-03-19
申请人： HITACHI LTD
发明人： NAKAMURA ICHIRO , WATANABE HARUO , SHUDO KATSUHARU , NOGAMI TADAHIKO , AKASAKA YOSHIMICHI , SASAKI HIDEKAZU
IPC分类号： B66B1/24 , B66B1/26 , B66B9/04

50. 发明专利

JPH07201387A PRESSURE-PROOF CONNECTOR 失效
公开(公告)号：JPH07201387A
公开(公告)日：1995-08-04
申请号：JP594
申请日：1994-01-04
申请人： HITACHI LTD
发明人： OGASAWARA TAKESHI , NAKAMURA ICHIRO , SHUDO KATSUHARU , KOJIMA SHIGETO
IPC分类号： H01R9/16
摘要： PURPOSE:To take out outside the input/output wiring from a detecting means in high-pressure liquid without the disconnection or short circuit of the input/ output wiring of the detecting means and without the leak of liquid by fitting a pressure-proof connector having simple constitution to a casing. CONSTITUTION:In pressure-proof connector 1, input/output wirings 2a from a detecting means 2 for detecting the displacement of a valve installed in liquid under the high pressure of a casing 30 are linked to conductive pins 11 wherein flanges are attached to a needlelike part, having the part of the number of wirings 2a or more number. At that time, nonconductive tubes 12 are inserted in the wirings 2a and the pins 11 for preventing the short circuit in the pins 11 with each other. The flanged parts of the pins 11 are nipped by two elastic bodies 13 wherein holes are opened by the number of the pins 11 and the holes are bored by the number of the pins 11 from both sides of the parts an nipped by two flanges 14 and 15 wherein a groove is formed in an inner side so that the elastic bodies 13 can be inserted. Also an O ring 16 wherein a groove is formed is added to a part to be inserted in the casing 30 of a flange 15 to seal the leak of liquid from the outer diameter of the flange 15.

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