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    • 1. 发明授权
    • .beta.-carboline derivative
    • β-咔啉衍生物
    • US5434148A
    • 1995-07-18
    • US67931
    • 1993-05-27
    • Koichiro YamadaMasataka HikotaTakeshi YuraToshiro ShikanoMasaaki Nagasaki
    • Koichiro YamadaMasataka HikotaTakeshi YuraToshiro ShikanoMasaaki Nagasaki
    • C07D471/04A61K31/44A61K31/55C07D487/04
    • C07D471/04
    • Disclosed are .beta.-carboline derivatives represented by the formula: ##STR1## wherein R.sup.1 represents hydrogen atom, a lower alkyl group, a lower alkoxy group or hydroxy group; R.sup.5 represents hydrogen atom, or R.sup.1 and R.sup.5 are bonded to represent a lower alkylenedioxy group; R.sup.2 represents hydrogen atom, a halogen atom, a lower alkoxy group or hydroxy group; R.sup.3 represents hydrogen atom, a carbamoyl lower alkyl group, a lower alkyl group, a carboxy lower alkyl group or a lower alkoxycarbonyl lower alkyl group; R.sup.4 represents hydrogen atom, a lower alkyl group, a carboxy lower alkyl group, a lower alkoxycarbonyl lower alkyl group, a lower alkanoyl group, an arylcarbonyl group, a lower alkanesulfonyl group, a lower alkoxycarbonyl group, an aralkyl group, formyl group or a di(lower alkyl)sulfamoyl group; n represents 0, 1 or 2; and the symbol * represents an asymmetric carbon atom,or a pharmaceutically acceptable salt thereof, and a process for preparing the same.
    • 公开了由下式表示的β-咔啉衍生物:其中R 1表示氢原子,低级烷基,低级烷氧基或羟基; R 5表示氢原子,或者R 1和R 5相连,表示低级亚烷基二氧基; R2表示氢原子,卤素原子,低级烷氧基或羟基; R3表示氢原子,氨基甲酰基低级烷基,低级烷基,羧基低级烷基或低级烷氧羰基低级烷基; R4表示氢原子,低级烷基,羧基低级烷基,低级烷氧基羰基低级烷基,低级烷酰基,芳基羰基,低级链烷磺酰基,低级烷氧基羰基,芳烷基,甲酰基或 二(低级烷基)氨磺酰基; n表示0,1或2; 符号*表示不对称碳原子,或其药学上可接受的盐及其制备方法。
    • 8. 发明授权
    • Trip device of circuit breaker
    • 断路器跳闸装置
    • US6054912A
    • 2000-04-25
    • US371497
    • 1999-08-10
    • Shozo KanekoTakeshi Yura
    • Shozo KanekoTakeshi Yura
    • H01H71/24H01H71/10H01H71/44H01H9/00
    • H01H71/446H01H71/1081
    • A trip device of a main circuit breaker is provided which causes only a branch circuit breaker to be set into a tripped state when an abnormal current occurs at a load of the branch circuit breaker while keeping a closed state of the main circuit breaker. The trip device of the circuit breaker has a structure including a trip latch mechanism for opening switching contacts, a stationary core, a movable core which is attracted to the stationary core to release the latch mechanism of a trip lever, an operating pin for interrupting movement of the movable core while the movable core is attracted, an operating spring charged with force when the movable core is attracted, and an inertia roller holding the operating pin, kicked when the operating spring discharges the force, and moved to a position which does not interrupt movement of the movable core. Accordingly, this structure allows a selective tripping system to be implemented simply with small size and low cost.
    • 提供了一种主断路器的跳闸装置,当保持主断路器的闭合状态时,在分支断路器的负载处发生异常电流时,仅使分支断路器被设定为跳闸状态。 断路器的跳闸装置具有包括用于打开开关触点的跳闸闩锁机构的结构,固定铁芯,被吸引到固定铁芯以释放跳闸杆的闩锁机构的可动铁芯,用于中断运动的操作销 当可动铁芯被吸引时,可动铁心被吸入时,在可动铁芯被吸引时施加力的操作弹簧和保持操作销的惯性辊在操作弹簧释放力时被踢动,并移动到不可移动的位置 可动芯的中断运动。 因此,该结构允许选择性跳闸系统简单地以小尺寸和低成本实现。
    • 9. 发明授权
    • Circuit breaker
    • 断路器
    • US4611188A
    • 1986-09-09
    • US707687
    • 1985-03-04
    • Wasaburo MuraiTakeshi Yura
    • Wasaburo MuraiTakeshi Yura
    • H01H73/38H01H71/10H01H71/24H01H71/38H01H83/00
    • H01H71/2409H01H71/1009H01H71/1072H01H71/2418H01H71/38
    • It is the main object of this invention to provide a circuit breaker in which the movable contacts have sufficient opening force and opening distance, and in which the breaking time is short. In order to attain the object, the circuit breaker of this invention is provided with a dead center link mechanism comprising a movable contact link which is rotatably supported by the arms of a cross bar which is operated so as to be capable of opening-closing the circuit and tripping by means of a trip-free mechanism, and a toggle spring which is bridged between the cross bar and the movable contact link. When a large current such as a short-circuit current flows, a movable steel plate attracted by an electromagnet for instantaneously tripping hits a rod for supporting the movable contacts which is connected to the movable contact link, whereby the dead center link mechanism makes the movable contacts open at high speed from the fixed contacts. As a result of such an operation, the current-limiting effect in this circuit breaker is excellent and breaking performance is improved.
    • 本发明的主要目的是提供一种断路器,其中可动触头具有足够的开启力和开启距离,并且断路时间短。 为了实现该目的,本发明的断路器设置有死点连杆机构,该死点连杆机构包括可动接触连杆,该可动接触连杆由可横向摇动的臂可旋转地支撑,该横杆被操作以能够打开 通过无跳闸机构的电路和跳闸,以及桥接在横杆和可动触头连杆之间的肘节弹簧。 当诸如短路电流的大电流流动时,用于瞬时跳闸的电磁体吸引的可动钢板撞击用于支撑可动触头的杆,所述活动触点连接到可动触点,从而死点连杆机构使可动触头 触点从固定触点高速打开。 作为这种操作的结果,该断路器中的限流效果优异,并且提高了断路性能。