GB809090A - Improvements in or relating to magnetic positioning devices for electric switches and keys - Google Patents

Improvements in or relating to magnetic positioning devices for electric switches and keys

Info

Publication number
GB809090A
GB809090A GB2313956A GB2313956A GB809090A GB 809090 A GB809090 A GB 809090A GB 2313956 A GB2313956 A GB 2313956A GB 2313956 A GB2313956 A GB 2313956A GB 809090 A GB809090 A GB 809090A
Authority
GB
United Kingdom
Prior art keywords
magnet
shaft
operating
magnets
switches
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.)
Expired
Application number
GB2313956A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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
Application filed by Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB809090A publication Critical patent/GB809090A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0073—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by relative movement between two magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/02—Energy stored by the attraction or repulsion of magnetic parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/50—Driving mechanisms, i.e. for transmitting driving force to the contacts with indexing or locating means, e.g. indexing by ball and spring
    • H01H2003/506—Driving mechanisms, i.e. for transmitting driving force to the contacts with indexing or locating means, e.g. indexing by ball and spring making use of permanent magnets

Landscapes

  • Push-Button Switches (AREA)
  • Switches With Compound Operations (AREA)
  • Adjustable Resistors (AREA)

Abstract

809,090. Switches, partly magnetic; magnetic switches; tapping keys; switches held set and freed mechanically; mechanical switches without quick action. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 26, 1956 [July 29, 1955], No. 23139/56. Class 38 (5). A pair of relatively movable co-operating permanent magnets are provided in a switch to determine at least one switching position of the switch operating member, each magnet having a coercive force of at least 750 oersted. The magnet material is preferably as disclosed in Specification 708,127, [Group XXXV]. In Figs. 1, 2, an annular permanent magnet 7 is rotated by a shaft 2 within a fixed magnet 6, the magnets having poles as shown, whereby the shaft is held in positions spaced by 90 degrees due to attraction between poles of opposite polarity, rotation of the shaft causing tilting of the mercury contact tube 5 carried thereby. According to Fig. 3, the shaft part 3 is rigidly connected to the mercury tube carrier 4 whilst the driven end 2 is freely rotatable in the carrier and carries an annular magnet 9 rotatable within a magnet 10 fixed to the carrier. The magnets 9, 10 are polarized similarly to the magnets 6, 7 but are stronger, whereby rotation of shaft 2 overcomes the resistance offered by 6, 7 and the tubes 5, 8 are quickly advanced to their next 90 degrees displaced position. In a further modification, Fig. 5, employing three concentric magnets 9, 10, 6, magnet 9 is driven by shaft 2, magnet 10 is fixed to the rotatable tube carrier, and magnet 6 is fixed to the switch housing 1. In a push-pull switch, Fig. 7, a disc-shaped magnet 30 on the operating plunger 27 cooperates with permanent magnets 31, 32 magnetized as shown to locate the plunger in any one of three positions, springs 25, 26 biased against the plunger head 29 operating changeover contact springs 21 ... 24. In a tapping key, Fig. 9, the lever 35 operating a contact 38 to engage contact 37, carries a magnet 40 co-operating with an adjustable magnet 41 whereby the lever is held in the position shown.
GB2313956A 1955-07-29 1956-07-26 Improvements in or relating to magnetic positioning devices for electric switches and keys Expired GB809090A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1955P0014566 DE1232241B (en) 1955-07-29 1955-07-29 Low-noise permanent magnetic latching device for electrical momentary switches

Publications (1)

Publication Number Publication Date
GB809090A true GB809090A (en) 1959-02-18

Family

ID=47427439

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2313956A Expired GB809090A (en) 1955-07-29 1956-07-26 Improvements in or relating to magnetic positioning devices for electric switches and keys

Country Status (5)

Country Link
BE (1) BE549884A (en)
DE (1) DE1232241B (en)
FR (1) FR1167718A (en)
GB (1) GB809090A (en)
NL (1) NL209353A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2985725A (en) * 1959-08-25 1961-05-23 Ambco Inc Silent switch
US3260821A (en) * 1963-10-04 1966-07-12 Yokoo Yusaku Push switch
US3369205A (en) * 1966-04-13 1968-02-13 Donald J. Hamrick Magnetic actuator for switches, valves and the like
US5864272A (en) * 1992-12-02 1999-01-26 Valeo Electronique Switch having at least two stable positions, especially for a motor vehicle

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1271243B (en) * 1960-05-06 1968-06-27 Siemens Ag Switch key with a display device located inside the key shaft
DE1208137B (en) * 1964-03-26 1965-12-30 Kopper Werke G M B H Gear for stepless speed control
DE3631193A1 (en) * 1986-09-13 1988-03-24 Bayer Ag MAGNETIC IRON OXIDE PIGMENTS AND METHOD FOR THE PRODUCTION THEREOF
DE3631194A1 (en) * 1986-09-13 1988-03-24 Bayer Ag MAGNETIC IRON OXIDE PIGMENTS AND METHOD FOR THE PRODUCTION THEREOF
FR2804240B1 (en) * 2000-01-26 2002-05-17 Dav DEVICE FOR CONTROLLING ELECTRICAL FUNCTIONS IN THE AUTOMOTIVE BY MAGNETIC SWITCHING
DE102006002757A1 (en) * 2006-01-20 2007-02-01 Hauzenberger, Johann Magnetic memory power switch has actuation provided by combination of an electromagnet and a return spring

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE520540C (en) * 1931-03-12 Hartmann & Braun Akt Ges Encapsulated rotary switch for registering measuring instruments
DE333312C (en) * 1920-02-07 1921-02-22 Emil Perzl Electric momentary switch
DE699682C (en) * 1937-03-18 1940-12-04 Siemens & Halske Akt Ges Switching device or vacuum switch, the contact closure of which is brought about by an external magnetic switching force

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2985725A (en) * 1959-08-25 1961-05-23 Ambco Inc Silent switch
US3260821A (en) * 1963-10-04 1966-07-12 Yokoo Yusaku Push switch
US3369205A (en) * 1966-04-13 1968-02-13 Donald J. Hamrick Magnetic actuator for switches, valves and the like
US5864272A (en) * 1992-12-02 1999-01-26 Valeo Electronique Switch having at least two stable positions, especially for a motor vehicle

Also Published As

Publication number Publication date
NL209353A (en)
BE549884A (en) 1957-01-28
FR1167718A (en) 1958-11-28
DE1232241B (en) 1967-01-12

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