GB1393608A - Bistable mechanism - Google Patents

Bistable mechanism


Publication number
GB1393608A GB3620672A GB3620672A GB1393608A GB 1393608 A GB1393608 A GB 1393608A GB 3620672 A GB3620672 A GB 3620672A GB 3620672 A GB3620672 A GB 3620672A GB 1393608 A GB1393608 A GB 1393608A
United Kingdom
Prior art keywords
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Application number
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE19712143001 priority Critical patent/DE2143001C3/en
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1393608A publication Critical patent/GB1393608A/en
Expired legal-status Critical Current



    • H01H51/00Electromagnetic relays
    • H01H51/02Non-polarised relays
    • H01H51/04Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • H01H51/08Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet
    • H01F7/00Magnets
    • H01F7/06Electromagnets; Actuators including electromagnets
    • H01F7/08Electromagnets; Actuators including electromagnets with armatures


1393608 Spring units; spring power-storing mechanism INTERNATIONAL BUSINESS MACHINES CORP 3 Aug 1972 [27 Aug 1971] 36206/72 Heading F2S A mechanism consists of a rod, such as an armature 10, rigidly secured, as by nuts 16 on threaded rods 11 connected to its ends, to an inner edge of each of a pair of annular spring discs 12, 13, each with curved slots in the zone between its inner and outer edges (and arranged so that the slots of one disc are directed in the opposite sense to those of the other disc), the outer edges being secured to a fixed support (e.g. housing 14, by pole shoes 17, 18 and clamping pieces 19, 20), so that the rod can adopt either of two stable positions along its axis, e.g. against either of two adjustable end stops 24, 25. The springs 12, 13 are first clamped to the armature 10 at their inner edges and the outer edge of one spring, say 13, is clamped against the adjacent pole shoe 18 by the raised edge of the adjacent piece 20. The rod is then moved axially and is caused by spring 13 to rotate about its axis and thus rotate the spring 12 clamped to it. The outer edge of spring 12 is then clamped to the pole shoe 17 by the disc 19 by tightening of screws 23. Arcuate slots 21 in the spring 12 permit its rotation before the tightening of the screws. On removal of the axial force moving the rod, the latter returns to one of the stable end positions with a biasing and change in shape of the springs 12, 13. Now, upon axial force being applied to the rod (armature 10), e.g. by exciting a field coil 29, the rod is moved axially against the spring tension until it reaches a midposition and then rapidly passes the position because of spring force in the same direction; it moves to an end position against one of the adjustable stops 24, 25.
GB3620672A 1971-08-27 1972-08-03 Bistable mechanism Expired GB1393608A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19712143001 DE2143001C3 (en) 1971-08-27 1971-08-27 Bistable axial guidance for plungers and the like in jump mechanisms

Publications (1)

Publication Number Publication Date
GB1393608A true GB1393608A (en) 1975-05-07



Family Applications (1)

Application Number Title Priority Date Filing Date
GB3620672A Expired GB1393608A (en) 1971-08-27 1972-08-03 Bistable mechanism

Country Status (5)

Country Link
JP (1) JPS5329823B2 (en)
DE (1) DE2143001C3 (en)
FR (1) FR2150755B1 (en)
GB (1) GB1393608A (en)
IT (1) IT963414B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5049666U (en) * 1973-09-05 1975-05-15
JPS5757954B2 (en) * 1977-10-25 1982-12-07 Hitachi Zosen Kk
DE2849722A1 (en) * 1977-11-25 1979-05-31 Garrett Corp SOLENOID VALVE ARRANGEMENT
DE10113009A1 (en) * 2001-03-17 2002-09-19 Bosch Gmbh Robert Jump switch for an actuator

Also Published As

Publication number Publication date
JPS4831471A (en) 1973-04-25
JPS5329823B2 (en) 1978-08-23
IT963414B (en) 1974-01-10
FR2150755A1 (en) 1973-04-13
DE2143001C3 (en) 1974-08-15
DE2143001A1 (en) 1973-03-01
FR2150755B1 (en) 1980-03-21
DE2143001B2 (en) 1974-01-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee