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21. 发明专利

JP2001048445A ELEVATOR 失效
公开(公告)号：JP2001048445A
公开(公告)日：2001-02-20
申请号：JP23002499
申请日：1999-08-16
申请人： HITACHI BUILDING SYS CO LTD
发明人： MATSUZAKI YOSHIO , NARA TOSHIHIKO , NAKAGAWA TOSHIHIRO , TADOKORO TOSHIYUKI , KUNII MAKOTO
IPC分类号： B66B7/08 , B66B11/04
摘要： PROBLEM TO BE SOLVED: To provide an elevator which can reduce a machine room space. SOLUTION: In this elevator, both ends of a rope 11 wound to a winch 14 arranged in a machine room space 30 are fixed to a rope end 13 fixed on the lower position than the winch 14 of the guide rail 5 for car erected in an elvating road 1 and a lower end 15 fixed to the lower position than the winch 14 of the guide rail 7 for balance weight erected in the elevating road 1. Thereby, the area of the machine room space 30 can be reduced.

22. 发明专利

JP2001058773A ELEVATOR 失效
公开(公告)号：JP2001058773A
公开(公告)日：2001-03-06
申请号：JP23187099
申请日：1999-08-18
申请人： HITACHI BUILDING SYS CO LTD
发明人： KUNII MAKOTO , MATSUZAKI YOSHIO , NARA TOSHIHIKO , NAKAGAWA TOSHIHIRO , TADOKORO TOSHIYUKI
IPC分类号： B66B1/34 , B66B5/00 , B66B7/00
摘要： PROBLEM TO BE SOLVED: To provide an elevator capable of securing a space for maintenance at regular intervals. SOLUTION: An elevator is structured so that a drive device 106 for elevator car 102 or a control device 104 is installed in the upper part of a pit 101 or in a machine room 108 provided there, wherein the control device 104 is made movable, and at the time of periodic inspection of elevator, the operator performs the operation from the ceiling 110 of the car 102 and pulls out the control device 104 upon unlocking a lock mechanism 113 using a pullout rod 112.

23. 发明专利

JPH09202935A COMPACTED VERMICULAR GRAPHITE CAST IRON AND SLIDING DEVICE USING THE SAME 失效
公开(公告)号：JPH09202935A
公开(公告)日：1997-08-05
申请号：JP31853696
申请日：1996-11-15
申请人： HITACHI LTD
发明人： TANAKA MASAKATSU , KOBAYASHI KANJI , WATANABE TOSHITAKA , NARA TOSHIHIKO , TAKAHASHI TATSUHIKO
IPC分类号： C22C37/04
摘要： PROBLEM TO BE SOLVED: To obtain a compacted vermicular graphite cast iron excellent in wear resistance and castability and capable of stabilizing pearlitic structure by forming it from hypo-eutectic components and specifying the area ratio of as cast pearlite. SOLUTION: This compacted vermicular graphite cast iron (CV for short) is composed of hypo-eutectic components having, by weight ratio, 3.3-3.8% C and 1.5-3.0% Si, and the area ratio of as cast pearlite is regulated to >=90%. C is an essential component to precipitate graphite, and Si is a component necessary to stabilize CV. In order to stabilize pearlitic structure at >=90% area ratio, carbon equivalent is represented by hypo-eutectic components. In this CV, pearlitic structure is stabilized by forming a flake graphite cast iron into a composition in the hypoeutectic range and also forming the form of graphite into compacted vermicular form.

24. 发明专利

JPH04125324A ELECTROMAGNETIC DISC BRAKE 失效
公开(公告)号：JPH04125324A
公开(公告)日：1992-04-24
申请号：JP24236090
申请日：1990-09-14
申请人： HITACHI LTD
发明人： TANAKA MASAKATSU , ITO MASANOBU , TAKAHASHI TATSUHIKO , NARA TOSHIHIKO
IPC分类号： B66B1/32 , F16D55/28 , F16D65/00 , F16D65/14 , F16D65/18 , H02K7/102
摘要： PURPOSE:To reduce rotational noise by providing an oil sealing member on a rotary shaft, and a space formed of a sound absorbing space and a sound absorbing member between the sealing oil member and a spline boss to absorb the rotational noise in the above sound absorbing space. CONSTITUTION:An oil sealing member 21 is assembled on the outside of a bearing 20 to support a rotary shaft 1 to prevent a lubricating oil passing through the bearing 20 from moving toward an electromagnetic brake. A space between the oil sealing member 21 and the spline boss 7 of the electromagnetic brake is formed of a sound absorbing space 23 provided on a disc 3 and a sound absorbing member 24 fitted in the rotary shaft 1 into a noise eliminating structure. Namely, rotational noise occurring in the engaging part between the spline boss and a disc 15 enters an expanded sound absorbing space through a narrow approaching space in the above sound absorbing space 23, and enters a narrow space again. Thus the sound passes through a maze-shaped space to cause sound interference for displaying noise eliminating effect.

25. 发明专利

JPH04121387A ELEVATOR DEVICE 失效
公开(公告)号：JPH04121387A
公开(公告)日：1992-04-22
申请号：JP23717090
申请日：1990-09-10
申请人： HITACHI LTD
发明人： SHIGETA MASAYUKI , SHIBATA TADASHI , SUGAWARA JIYUN , NARA TOSHIHIKO , MIMORI KIYOYASU
IPC分类号： B66B11/02 , B66B1/06 , B66B7/04
摘要： PURPOSE:To prevent a riding cage from its transverse vibration due to bending of a guide rail by providing an anti-unbalanced load generating device, which reduces an unbalanced load generated in a guide device, in the riding cage. CONSTITUTION:A riding cage 2 is positioned by placing its hanging center 0 to a side of a balance weight 10 relating to a center of gravity position W. As a result, the riding cage 2 is tumbled in a direction A of a gate 2a. A guide device 6 supports an unbalanced load, caused by tumbling this riding cage 2, to guide the riding cage 2. Here, the riding cage 2 is guided by the guide device 6 in a condition that a guide load, acting on a side surface of a guide rail in a vertical direction to a surface of a pair of the guide rails 4 through a guide piece, is deviated to the one side surface of the guide rail. In the guide devices 6 mounted to upper and lower parts of the riding cage 2, anti-unbalanced load generating devices, formed of electromagnets 14 for attracting the guide rail 4 in a direction of reducing an unbalanced component of the guide load, are provided.

26. 发明专利

JPH03249075A METHOD AND DEVICE FOR ELEVATOR STOPPAGE CONTROL 失效
公开(公告)号：JPH03249075A
公开(公告)日：1991-11-07
申请号：JP4672090
申请日：1990-02-27
申请人： HITACHI LTD
发明人： ITO MASANOBU , TANAKA MASAKATSU , TAKAHASHI TATSUHIKO , NARA TOSHIHIKO
IPC分类号： B66B1/36 , B66B11/08
摘要： PURPOSE:To improve the stoppage action characteristics of an elevator box by enabling a plurality of brake characteristics to be generated by an electromagnetic brake device, and switching the brake characteristics between a normal stoppage and an emergency stoppage, or based on elevator operation conditions for the emergency stoppage. CONSTITUTION:A control part 9 controls and drives a motor 6 by taking outputs of a speed detector 10 and outputs of a mounted quantity detector 11 for an elevator box 1 as feedback inputs, and it also controls an electromagnetic brake device 7. In case of an emergency stoppage, when the total weight of the box is smaller than a balance weight 2, braking action is performed more quickly than at the time of a normal stoppage, while if the total weight of the box is larger than the balance weight 2, the braking action is performed more slowly than at the normal stoppage. The stoppage action of the elevator box can thus be stabilized.

27. 发明专利

JPH0389034A ELECTROMAGNETIC BRAKE FOR ELEVATOR 失效
公开(公告)号：JPH0389034A
公开(公告)日：1991-04-15
申请号：JP22148989
申请日：1989-08-30
申请人： HITACHI LTD
发明人： TANAKA MASAKATSU , NARA TOSHIHIKO , TAKAHASHI TATSUHIKO , ITO MASANOBU
IPC分类号： F16D55/28
摘要： PURPOSE:To improve reliability and safety by moving axially bolts normally provided as a means of releasing the braking condition of an electromagnetic brake in the electromagnetic brake and releasing the brake in the position of the moved bolt as a fulcrum with a general tool inserted in the opposite side. CONSTITUTION:Bolts A26, B27 are provided in a disk on the outer peripheral part of a lining 6 to be axially moved. The bolts A26, B27 are moved toward an armature 4 which is moved toward a core 10 to adhere to the core 10. Under such a condition, the lining 6 is under the incompletely released condition. Then, a releasing member 28 is inserted in a gap between the armature 4 and disk 3 at a fulcrum O position approximately point-symmetrical about a rotary shaft 1 relative to the positions of provided bolts A26, B27, so that the armature 4 is moved to the core side by utilizing the principle of leverage to release completely the lining 6. Thus, braking is easily released by substituting the releasing member by a driver or the like to improve the maintenance property and safety.

28. 发明专利

JPH0326684A HOIST VIBRO-ISOLATING STRUCTURE FOR ELEVATOR 失效
公开(公告)号：JPH0326684A
公开(公告)日：1991-02-05
申请号：JP15956989
申请日：1989-06-23
申请人： HITACHI LTD
发明人： NARA TOSHIHIKO , TAKAHASHI TATSUHIKO , OKAWA HIROSHI
IPC分类号： B66B11/04
摘要： PURPOSE:To prevent generation of noise by finding out a position of vibro- isolating support in such a manner as considering a vibration propagation route to a machine beam from a hoist and a vibration mode further enrtoling the hoist to be arranged in a machine room for space saving. CONSTITUTION:For instance, a machine bed 6 is extended, and a receiving bed 3a and a machine beam 4 are buried in a wall. That is, a vibro-isolating rubber 5a in a wall side is arranged below the machine bed 6 by extending it in the vicinity of the wall. It is not too much to say that no condition is provided for the other side rubber to be buried in the wall, and the vibro- isolating rubber 5b is arranged in a part just above a receiving bed 3b. Since a hoist 7 is supported in the vicinity of the receiving bed of high rigidity, vibration insulating ability of the vibro-isolating rubber can be also ideally displayed, further more a primary vibration mode is also prevented from being easily generated. Accordingly, vibration of the machine beam 4 is decreased with less vibration to receiving beams 2a and 2b.

29. 发明专利

JPH0192190A POWER UNIT FOR HYDRAULIC ELEVATOR 失效
公开(公告)号：JPH0192190A
公开(公告)日：1989-04-11
申请号：JP24887187
申请日：1987-10-01
申请人： HITACHI LTD
发明人： TAKEDA KAZUTOSHI , SASAKI HIDEKAZU , NARA TOSHIHIKO
IPC分类号： B66B9/04
摘要： PURPOSE: To provide a compact and inexpensive power unit for hydraulic elevator by juxtaposing a hydraulic pump and a flow streamlining means on the bottom part within a tank for storing hydraulic oil. CONSTITUTION: This power unit is provided with a tank 1 for storing hydraulic oil, a hydraulic pump 2 provided therein, a flow control valve 4 for controlling the discharge quantity, and a muffler 5 for streamlining the controlled hydraulic oil, and the hydraulic pump 2 and the muffler 5 are juxtaposed on the bottom part within the tank 1. According such a structure, since the muffler 5 having a relatively large space is provided on the bottom part within the tank 1, the quantity of ineffective oil can be reduced by the portion of the volume of the muffler 5. When the muffler 5 having such a large volume is housed in the tank 1, the power unit body can be made compact, and the space occupied by the muffler 5 in the past can be effectively utilized.

30. 发明专利

JPS63171785A ELEVATOR 失效
公开(公告)号：JPS63171785A
公开(公告)日：1988-07-15
申请号：JP162087
申请日：1987-01-09
申请人： HITACHI LTD
发明人： NAKAMURA ICHIRO , SHUDO KATSUHARU , NARA TOSHIHIKO
IPC分类号： B66B9/00 , B66B9/02 , B66B9/04

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