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12. 发明专利

JPH09129111A CIRCUIT BREAKER FOR WIRING 失效
公开(公告)号：JPH09129111A
公开(公告)日：1997-05-16
申请号：JP30833595
申请日：1995-10-31
申请人： KAWAMURA ELECTRIC INC
发明人： NAKAYAMA MASAHIKO
IPC分类号： H01H71/12 , H01H73/02 , H01H73/24
摘要： PROBLEM TO BE SOLVED: To provide a high shutting property while keeping and excellent spring property and high capacity of electric communication by composing a movable contactor by layering at least three layers of different types of metal each. SOLUTION: In a circuit breaker 1 for wiring a toggle link mechanism part 8 is driven by ON/OFF operation of an operation handle 9 and a movable contact point 5 of a movable contactor 6 is contacted with and parted from a fixed contact point 3 of a fixed contactor 4 through a separator 7. These parts are held by and covered with a substrate 2 and a cover body 11 having an aperture 10 to project the handle 9 out. The movable contactor 6 is composed by layering three layers of respectively different types of metals, for example, sheets of phosphor bronze for springs, copper, nickel silver for springs, etc., and uniting the layers. Consequently, the circuit breaker can stand arc energy generated at the time of short circuit while keeping good spring property and high capacity of electric communication.

15. 发明专利

JP2509924B2 失效
公开(公告)号：JP2509924B2
公开(公告)日：1996-06-26
申请号：JP116787
申请日：1987-01-08
申请人： GEN ELECTRIC
发明人： RONARUDO DEBITSUDO SHIARUSHIA , GUREGORII TOMASU DEIBINSENZO , RICHAADO EMERII BAANIAA , JOSEFU GUSUTABU NAGII
IPC分类号： H01H73/24 , H01H71/10 , H01H71/50 , H01H71/74 , H01H73/06 , H01H73/22

17. 发明专利

JPH07245054A CIRCUIT BREAKER 失效
公开(公告)号：JPH07245054A
公开(公告)日：1995-09-19
申请号：JP22136694
申请日：1994-09-16
申请人： HITACHI LTD
发明人： TERAOKA WATARU
IPC分类号： H01H71/12 , H01H71/52 , H01H71/74 , H01H73/22 , H01H73/24
摘要： PURPOSE:To provide a breaker excellent in productivity such as assembling workability by making an action time adjusting device abut on an adjusting part provided on a movable core to be detachably locked to a case. CONSTITUTION:An adjustable mechanism 70 is fixed to a case 4 by fittedly inserting a supporting plate 20 into the groove 4d of the case 4. The thin thickness part 1a of a cover l is removed to make a condition where a control 25 can be operated from outside. In this condition, the lower end part 18c of a rod 18 abuts on the adjusting part 50c of a movable core abutting plate 50. The initial position of a movable core 15 can be changed to adjust an instant characteristic by vertically sliding the rod 18 for rotating the control 25 to raise or lower the adjusting part 50c. Consequently, workability at the time of assembling and maintenance can be improved.

19. 发明专利

JPH07130274A CIRCUIT BREAKER 失效
公开(公告)号：JPH07130274A
公开(公告)日：1995-05-19
申请号：JP27160593
申请日：1993-10-29
申请人： TOSHIBA LIGHTING & TECHNOLOGY
发明人： MIURA KEIICHI , MATSUSHITA TOSHIAKI
IPC分类号： H01H71/12 , H01H73/24
摘要： PURPOSE:To reduce the number of parts and the manhours in assembly by arranging the constitution such that an opening and closing block moves in contact and separation direction so as to open or close the contacts, interlocking with the on-off operation of a handle. CONSTITUTION:When a handle 46 is rotated in on direction, it is displaced to go down, resisting the energizing force by the winding spring 47 for hanging an opening and closing block 49, and a contact spring 42 caught with shaft bodies 49a and 49b goes down, and it gets in on condition that the contacts 37 and 41 contact with each other. When an eddy current flows in this condition, bimetal 43 warps by heat, and the latch 50 rotates to be displaced, and the latch part 50b comes off the locking shaft 49f of the block 49, and the block 49 jumps up by the energizing force of the spring 47 so as to turn off the contacts 37 and 41 instantaneously. With this constitution, the number of parts and the manhours in assembling are decreased without needing a link mechanism.

20. 发明专利

JPH07130273A CIRCUIT BREAKER 失效
公开(公告)号：JPH07130273A
公开(公告)日：1995-05-19
申请号：JP27168493
申请日：1993-10-29
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： HISAMOTO HIDEO , INOUE TAKESHI , MIZUNO HATSUO
IPC分类号： H01H71/12 , H01H73/22 , H01H73/24
摘要： PURPOSE:To provide a breaker where the dispersion of over-current characteristics is hard to occur, by arranging the constitution such that a latch member is energized in the direction where the latch of an operating member comes off in a normal condition and that the movement of the latch member is supported with a thermal element. CONSTITUTION:A latch member 11 is made nearly in the shape of a snail out of an insulating member, and the shaft hole 50 is retained rotatably with a mobile contactor 9 by the shaft 26b of a link 26. The lock member 52a at the tip of a surrounding wall 52 locks the piece 46 for locking of an operating member 10. For a hook piece 52, one end 53a of a twist coil spring 53 is temporarily fixed. A member 11 is energized in the direction of unlocking the latch of the member 10 by hooking one end 53a of the spring 53 on the link piece 41 of the mobile contactor 9. Hereby, a bimetallic strip is displaced as it is, according to the magnitude of an over-current, and it becomes hard for the dispersion of over-current characteristics for demolishing the balance of the link mechanism to occur.

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