GB1242489A - Arrangement for magnetically simultaneously actuating a plurality of movable members - Google Patents
Arrangement for magnetically simultaneously actuating a plurality of movable membersInfo
- Publication number
- GB1242489A GB1242489A GB50102/69A GB5010269A GB1242489A GB 1242489 A GB1242489 A GB 1242489A GB 50102/69 A GB50102/69 A GB 50102/69A GB 5010269 A GB5010269 A GB 5010269A GB 1242489 A GB1242489 A GB 1242489A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- magnetic
- heads
- opposite poles
- keys
- 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
Links
- 230000005291 magnetic effect Effects 0.000 abstract 4
- 235000014676 Phragmites communis Nutrition 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000000969 carrier Substances 0.000 abstract 1
- 230000000994 depressogenic effect Effects 0.000 abstract 1
- 230000005294 ferromagnetic effect Effects 0.000 abstract 1
- 239000003302 ferromagnetic material Substances 0.000 abstract 1
- XMNVMZIXNKZAJB-UHFFFAOYSA-N iron(3+);lead(2+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Fe+3].[Fe+3].[Pb+2].[Pb+2] XMNVMZIXNKZAJB-UHFFFAOYSA-N 0.000 abstract 1
- 239000002991 molded plastic Substances 0.000 abstract 1
- 239000011295 pitch Substances 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- 229910052712 strontium Inorganic materials 0.000 abstract 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- 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
- 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
Landscapes
- Push-Button Switches (AREA)
Abstract
1,242,489. Permanent magnets; magnetic switches. M. BAERMANN. 13 Oct., 1969 [21 Oct., 1968], No. 50102/69. Headings H1N and H1P. In a keyboard, plural keys 10, intersecting a fixed permanent magnet strip 5 alternately magnetized along its length with opposite poles, carry heads 7 permanently magnetized laterally with opposite poles, separated by non-magnetic guides 6. A further strip 2 laterally movable against spring 3 by button 11 is alternately magnetized along its length with opposite poles, and the lateral pole pitches are similar, while, magnetic poles at the upper and lower faces of heads 7 are respectively opposed to those on strip 5 and on strip 2 in the rest position shown. Thus undepressed keys are retained in contact with strip 5 and depressed keys with strip 2 until the latter is moved laterally, when the heads 7 are repelled from strip 2 into attraction by strip 5. Dry reed switches (Fig. 2, not shown) may be provided in the field of operation of heads 7 for magnetic operation on key depression. The permanent magnets may be of barium, strontium, or lead ferrite, moulded plastic containing ferro magnetic material, or individual magnets on ferromagnetic carriers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681804228 DE1804228A1 (en) | 1968-10-21 | 1968-10-21 | Device, preferably for actuation of contacts for switching or control devices and the like. |
| US86721069A | 1969-10-17 | 1969-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1242489A true GB1242489A (en) | 1971-08-11 |
Family
ID=25756301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB50102/69A Expired GB1242489A (en) | 1968-10-21 | 1969-10-13 | Arrangement for magnetically simultaneously actuating a plurality of movable members |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3588766A (en) |
| DE (1) | DE1804228A1 (en) |
| FR (1) | FR2021127A1 (en) |
| GB (1) | GB1242489A (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3831730A (en) * | 1973-01-31 | 1974-08-27 | D Koeppe | Keyboards |
| JPS5024769A (en) * | 1973-07-04 | 1975-03-17 | ||
| US4054944A (en) * | 1975-01-17 | 1977-10-18 | Redactron Corporation | Finger operated switching device |
| US4203013A (en) * | 1976-10-26 | 1980-05-13 | Serras Paulet Edouard | Alphanumeric control keyboard with depressible keys for electric or electronic machines |
| DE2659449C3 (en) * | 1976-12-30 | 1980-07-10 | Agfa-Gevaert Ag, 5090 Leverkusen | Master stage in a photographic copier with interchangeable format masks |
| JPS58169825A (en) * | 1982-03-31 | 1983-10-06 | 日本メクトロン株式会社 | Panel keyboard |
| US4513271A (en) * | 1982-07-16 | 1985-04-23 | Minnesota Mining And Manufacturing Company | Momentary contact magnetic switch |
| WO2006131520A1 (en) * | 2005-06-06 | 2006-12-14 | Schneider Electric Industries Sas | Electric circuit switching device using at least two permanent magnets |
| FR2892226B1 (en) * | 2005-10-19 | 2007-12-21 | Schneider Electric Ind Sas | DEVICE FOR SWITCHING AN ELECTRIC CIRCUIT USING AT LEAST TWO PERMANENT MAGNETS |
| US8279029B2 (en) * | 2008-07-10 | 2012-10-02 | Flextronics Automotive, Inc. | Weatherproof switch for indoor and outdoor information clusters and function switches |
| CN104425168B (en) * | 2013-08-23 | 2016-12-28 | 富泰华工业（深圳）有限公司 | Slide switch and opening-closing structure thereof, and there is the electronic installation of this slide switch |
| EP3215916B1 (en) * | 2014-11-05 | 2019-01-09 | Razer (Asia-Pacific) Pte. Ltd. | Input devices |
| US9880685B2 (en) * | 2015-09-15 | 2018-01-30 | Blackberry Limited | Portable electronic device including keyboard and method of controlling same |
-
1968
- 1968-10-21 DE DE19681804228 patent/DE1804228A1/en active Pending
-
1969
- 1969-10-13 GB GB50102/69A patent/GB1242489A/en not_active Expired
- 1969-10-16 FR FR6935533A patent/FR2021127A1/fr not_active Withdrawn
- 1969-10-17 US US867210A patent/US3588766A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE1804228A1 (en) | 1970-05-14 |
| FR2021127A1 (en) | 1970-07-17 |
| US3588766A (en) | 1971-06-28 |
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