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1. 发明专利

JP2003155181A RAILWAY STATION FACILITY 审中-公开
公开(公告)号：JP2003155181A
公开(公告)日：2003-05-27
申请号：JP2001356509
申请日：2001-11-21
申请人： HITACHI LTD , HITACHI MITO ENG KK
发明人： SHUDO KATSUHARU , ONODERA MINORU , UENO AKIO , SUZUKI TOKUO
IPC分类号： E01F1/00 , B66B9/00
摘要： PROBLEM TO BE SOLVED: To provide a railway station facility enabling even a small station to have an elevator only if it has a passengers' overpass connecting platforms by staircases. SOLUTION: The facility comprises platforms 1 provided in parallel with a railway 2, a passengers' overpass 3 bridging the railway 2, staircases 4 connecting the bridge 3 and the platforms 1, elevators 5 provided near the staircases 4 with their upper-floor entrances 7 positioned on the side of the bridge 3, and passages 8 added for connecting the entrances 7 and the bridge 3.

2. 发明专利

JPH11301949A HYDRAULIC ELEVATOR DEVICE 失效
公开(公告)号：JPH11301949A
公开(公告)日：1999-11-02
申请号：JP11171698
申请日：1998-04-22
申请人： HITACHI LTD , HITACHI MITO ENG KK
发明人： ARAHORI NOBORU , MATSUDO TAKASHI , UENO AKIO , NAKAMURA ICHIRO , WATANABE HARUO
IPC分类号： B66B9/04
摘要： PROBLEM TO BE SOLVED: To prevent the buffer collision of a balance weight by allowing the stopper of a plunger to hit a cylinder before the balance weight collides with a buffer when the balance weight is lowered excessively. SOLUTION: The length of a rope 8 is set so that the stopper 41 of a plunger 4 hits a cylinder 3 to prevent the plunger from rising any more before a car 1 hits the apex of a hoistway 10 or a beam 11 when an elevator rises excessively due to some abnormality. A balance weight 2 is located at a position not to collide with a buffer 6 at this time, i.e., the length of a rope 9 on the balance weight 2 side is set so that a gap set in advance is kept between the balance weight 2 and the buffer 6 when the stopper 41 of the plunger 4 hits the upper section of the cylinder 3. Even if the elevator rises excessively due to some abnormality, the stopper 41 is prevented from hitting the car 1, and the buffer collision of the balance weight 2 can be avoided.

3. 发明专利

JPH10167622A HYDRAULIC ELEVATOR 失效
公开(公告)号：JPH10167622A
公开(公告)日：1998-06-23
申请号：JP32413196
申请日：1996-12-04
申请人： HITACHI LTD , HITACHI MITO ENG KK , HITACHI ELEVATOR ENG
发明人： WATANABE HARUO , NAKAMURA ICHIRO , SHUDO KATSUHARU , SASAKI HIDEKAZU , UENO AKIO , KOJIMA SHIGETO , TOBA TAKAHISA
IPC分类号： B66B9/04
摘要： PROBLEM TO BE SOLVED: To maintain a rated speed during a descending operation without a load by forcing valve control on the basis of a pressure signal from a pressure sensor during the descending operation, and controlling the opening of a fluid control valve at two or more steps depending on a descending operation load condition. SOLUTION: During the ascending operation of a car 201, a fluid delivered from a hydraulic pump 1 is fed to a hydraulic cylinder 200 via the main valve of a solenoid selector valve 100, on the operation of a control device 5. On the other hand, the pilot valve of the solenoid selector valve 100 is controlled at the time of a descending operation, and the main valve is forced open for descending operation control. In this case, when the pressure of a pump port flow passage 222 becomes approximately equal to cylinder pressure on the operation of the control device 5, the first pilot valve is excited to close. Also, control is made so that one of the second and third normally close pilot valves opens in accordance with the closure of the the first pilot valve. In addition, the opening of the main valve is adjusted at two steps. thereby performing the descending operation of the car 201 at a rated speed.

4. 发明专利

JPH10139313A HYDAULIC JACK 失效
公开(公告)号：JPH10139313A
公开(公告)日：1998-05-26
申请号：JP30492196
申请日：1996-11-15
申请人： HITACHI LTD , HITACHI MITO ENG KK
发明人： TABUCHI HIKARI , NAKAMURA HIDEHIRO , UENO AKIO
IPC分类号： B66B9/04 , F15B15/14
摘要： PROBLEM TO BE SOLVED: To retain auxiliary packing to be used for a hydraulic jack without deterioration of the packing. SOLUTION: In a hydraulic jack provided with a hydraulic cylinder 1, a plunger 2 reciprocating in the cylinder 1, packing 9 sealing the part between them 2, 1, auxiliary packing 81 mounted on an outer planger 2 of the cylinder 1, a part 21 where the auxiliary packing 81 is mounted is made short in its dia. and the packing 81 is covered with a cover 82. The arrangement of the auxiliary packing 81 on the plunger short dia. part 21 outside of the cylinder 1 enables the retention of auxiliary packing with a sufficient tension.

5. 发明专利

JPH0940325A HYDRAULIC ELEVATOR 失效
公开(公告)号：JPH0940325A
公开(公告)日：1997-02-10
申请号：JP19727495
申请日：1995-08-02
申请人： HITACHI LTD , HITACHI BUILDING SYST CO LTD , HITACHI MITO ENG KK
发明人： NAKAMURA HIDEHIRO , FUKUDA TAKASHI , UENO AKIO , SAWAHATA OSAMU
IPC分类号： B66B9/04
摘要： PROBLEM TO BE SOLVED: To reduce bar body installation manhour by disposing a bar body with one end fixed to the bottom part inner surface of a hydraulic cylinder and with the other end fixed to a ceiling of an elevator shaft, in the state of piercing the center of a hollow hydraulic plunger with both ends formed into sealed structure. SOLUTION: Slidable packing 103 is disposed at the boundary of a guide rail 2 and a hydraulic plunger 102, that is, at both ends of the plunger 102, so as to keep the inside of a hydraulic cylinder 101 and the inside of the hydraulic plunger 102 respectively sealed to the outside of a hydraulic jack. At the time of installing the hydraulic jack, the individual centering of a guide rail 2 and the jack is dispensed with since the guide rail 2 is integral with the hydraulic jack, and centering work is performed only once. As a result, the installation manhour of the hydraulic jack can be reduced.

6. 发明专利

JPH07224803A HYDRAULIC CIRCUIT PROVIDED WITH ACCUMULATOR 失效
公开(公告)号：JPH07224803A
公开(公告)日：1995-08-22
申请号：JP1843594
申请日：1994-02-15
申请人： HITACHI LTD , HITACHI MITO ENG KK , HITACHI BUILDING SYST ENG
发明人： HOSOKAWA JUNICHI , SASAKI HIDEKAZU , UENO AKIO , NAKAMURA HIDEKAZU , NAKAMURA HIDEHIRO , YAMAMOTO KOJI , TACHIBANA MAKOTO
IPC分类号： B66B9/04 , F15B11/00
摘要： PURPOSE:To provide a hydraulic circuit provided with an accumulator in which the restraint function for pulsation can be sufficiently exhibited, and even if the circuit is changed by a changeover valve, vibration or noise is not transmitted to the other circuit element. CONSTITUTION:In a hydraulic circuit provided with a hydraulic jack 10 driven by oil pressure, a hydraulic pump 7 to charge or discharge working oil to or from the hydraulic jack 10, a motor 6 driving the hydraulic pump 7, and an accumulator 5 provided on the hydraulic circuit between the hydraulic pump 7 and the hydraulic jack 10, the accumulator 5 is connected to a muffler main body 4 which is one of elements in the hydraulic circuit of large mass and high rigidity.

7. 发明专利

JPH04251769A DEVICE AND METHOD FOR CONTROLLING SHEET FEEDING FOR PRINTER 失效
公开(公告)号：JPH04251769A
公开(公告)日：1992-09-08
申请号：JP845591
申请日：1991-01-28
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： MUTO ISAMU , TADA YUTAKA , UENO AKIO , KAMIURA KAZUO , OKADA SEIJI
IPC分类号： B41J11/42 , B41J13/00 , B41J17/00 , B41J25/308
摘要： PURPOSE:To improve total throughput of printing processes and to make detection of sheet thickness executable without leaving disfigurements such as indentations on the sheet. CONSTITUTION:A stepping motor 8 that moves a printing head 1 in the direction C, approximately perpendicular to a sheet 4, is provided and pulses are outputted from an encoder 10 in accordance with the amount of revolutions of said stepping motor 8. When cycles of the pulse outputting from the encoder 10 become irregular, a judgement is made that the front end of the printing head 1 comes in contact with the sheet 4, and number of pulses outputted from the encoder 10 up to that moment is counted. Then the thickness of the sheet 4 is calculated, based on the result of said counting. In the case where the sheet 4 is detected to be thin, the speed of sheet-feeding is accelerated, while said speed is lowered when the sheet 4 is found to be thick.

8. 发明专利

JPH04119870A PRINTING DEVICE 失效
公开(公告)号：JPH04119870A
公开(公告)日：1992-04-21
申请号：JP24164690
申请日：1990-09-12
申请人： HITACHI LTD
发明人： TACHIBANA MAKOTO , UENO AKIO , INANOBE YOJI
IPC分类号： B41J25/308 , B41J7/92
摘要： PURPOSE:To make a clearance between a printing head and a platen adjustable uniformly by making the title device equipped with a function which makes the printing head contact to and separate from the platen in straight-line motion toward the center of the axis of the platen. CONSTITUTION:A support rail 6 is installed with its shaft ends inserted into elliptic holes 5a, and positioning therefor is made by binding eccentric cams 7 which are provided to the shaft ends with pressing means 9, concentric rollers 8, and eccentric rollers 8'. When the support rail 6 is reinstalled with both of the eccentric cams 7 on both shaft ends turned against the support rail 6 at certain angles to the same extent, the support rail 6 moves toward one side of the elliptic holes 5a to an extent equivalent to eccentricity that corresponds to the turning angle, and thereby a printing head 1 makes straight-line movement toward the center of the axis of a platen 2. With the concentric rollers 8 turned by operation of a turning means 10, the eccentric cams 7 adjacent to the concentric rollers 8 make straight-line movement along the inside of the elliptic holes 5a for a distance equivalent to the extent of eccentricity that corresponds to said turning, and thereby parallelism between the support rail 6 and the platen 2 is adjusted. Therefore clearance between wires of the printing head and the surface of printing paper can be kept at a fixed distance regardless of thickness of the paper, and thereby unevenness of density in printed letters can be prevented.

9. 发明专利

JPH0422663A PRINTING APPARATUS 失效
公开(公告)号：JPH0422663A
公开(公告)日：1992-01-27
申请号：JP12672490
申请日：1990-05-18
申请人： HITACHI LTD
发明人： OKUDA YUTAKA , UENO AKIO , KAWABATA KEIJI , TACHIBANA MAKOTO
IPC分类号： B41J11/02 , B41J29/00
摘要： PURPOSE:To reduce the number of parts and to remove charged static electricity by embedding a static discharging brush in a rubber part at the position where the left end of each paper at the left end of a platen passes. CONSTITUTION:A brush 9 removing the static electricity generated in paper 6 protrudes by a dimension B from the outer peripheral surface of platen 1 between the left end of the paper 6 and a printing position 8 and is connected to the core metal 10 of the platen 1. Therefore, the static electricity generated in the paper 6 passes through the core metal 10 of the platen 1 through the contact with the brush 9 and flows to frames 2 through platen bushes 3 to be earthed. Since the paper 6 is necessarily wound around the platen 1 so that the left end part 7 thereof does not overlap with the printing position 8 and comes into contact with the brush 9 without blowering printing quantity, static charge can be removed even when no brush is provided to a manual slip paper outlet, an automatic slip paper outlet, a continuous form outlet for a push tractor and a continuous form outlet for a pull tractor.

10. 发明专利

JPH02229060A PRINTER 失效
公开(公告)号：JPH02229060A
公开(公告)日：1990-09-11
申请号：JP4984389
申请日：1989-03-03
申请人： HITACHI LTD
发明人： UENO AKIO , MUTO ISAMU , TADA YUTAKA , TACHIBANA MAKOTO , KAWABATA KEIJI , OKUDA YUTAKA , KANEKO HIROSHI
IPC分类号： B41J11/42
摘要： PURPOSE:To eliminate manual line adapting without any line deviation even by repetition of on and off operation of a power source by providing a transfer driving system in which a page length of continuous paper is conformed to integral times a product of a control pulse number for rotating a pulse motor one rotation multiplied by an advance amount by one pulse. CONSTITUTION:A motor comes to be rotated one revolution by 8 pulse by a half pitch excitation method from an initial exciting position A phase excitation when an A, B two phase motor is on with a power source in a conveyance driving system. Then, for instance, a feed amount of paper per one pulse is taken as 1/240 or the like. If a phase position at end of printing comes to be an initial state position being always the A phase for a page length in order to be free from generation of line deviation, any line deviation is not generated. That is, if the page length is integral times the product 8/240 or the like of the pulse number per one rotation of the motor 8 multiplied by the advance amount by one pulse 1/240 or the like, the operation is preferable from all the paper feed driving system. Further, in order to stay in the A phase at which no line deviation is generated by keeping feed per unit time of paper, i.e. conveyance speed, the operation is preferable if a number of rotations of the motor is made two times and a number of gears of a large timing gear 6 is made two times in order not to change N following that.

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