EP0990244B1 - Schnappscheibenschalter - Google Patents
Schnappscheibenschalter Download PDFInfo
- Publication number
- EP0990244B1 EP0990244B1 EP99927695A EP99927695A EP0990244B1 EP 0990244 B1 EP0990244 B1 EP 0990244B1 EP 99927695 A EP99927695 A EP 99927695A EP 99927695 A EP99927695 A EP 99927695A EP 0990244 B1 EP0990244 B1 EP 0990244B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- snap
- bead
- switch
- snap disk
- contact
- 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 - Lifetime
Links
Images
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
- H01H5/04—Energy stored by deformation of elastic members
- H01H5/30—Energy stored by deformation of elastic members by buckling of disc springs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2227/00—Dimensions; Characteristics
- H01H2227/026—Separate dome contact
Definitions
- the invention relates to a snap disk switch according to the preamble of the claim 1 with a domed snap disc, which is in the highest point the curvature arranged bead has a switching contact, which as a separate Contact element is formed, which is fixed in the bead.
- Such snap disk switches are well known in the prior art and are used regularly in the field of keyboards.
- the switch contact of the known snap disk switch is regularly a spherical curvature, which extends inwards in the radial direction of the snap disk.
- the spherical Curvature is produced in that the snap disc in a corresponding molded press tool is inserted.
- a snap disk switch is known from US-A-4,438,304 which a counter contact below and above the curvature of the snap disc is arranged. This ensures that the snap disk switch Has the function of a changeover switch. The one located at the highest point of the curvature Switch contact is riveted into the snap disk. In the field of riveting the snap disc is also curved
- the switch contact is designed as a separate contact element, which is attached in the bead.
- the separate, not with the snap disc one-piece design of the contact element it is advantageous possible to manufacture the contact element from a different material than that Snap disk.
- the material of the snap disc can thus with regard to the Spring or snap action of the snap disk can be selected, whereas the material of the switch contact with regard to an optimal switching behavior can be selected.
- switch contact is riveted onto the snap disk is. This attachment has proven to be very durable emphasized advantageous.
- the bead is designed as a flat surface is. This creates a neutral zone for the mechanically attached switch contact created.
- the formation of the bead as a flat surface results in a Interruption of the snap disc bending stress.
- the attachment of the Switch contact is therefore free of material movements of the snap disk, which the attachment becomes very durable.
- the Bead in the radial direction of the snap disc to the outside.
- this affects favorable on the spring action of the snap disc.
- a domed snap disc has 1 a bead 2 at the highest point of its curvature.
- the bead 2 is as formed flat surface, which was produced by cold forming.
- the Sikke 2 is thus delimited by an edge which is sharp-edged from the snap disc is bent away.
- the edge could also be designed as a groove.
- the bead 2 extends in the radial direction of the snap disc 1 to the outside.
- the bead 2 has a separate contact element 3, which is in a radial Direction of the snap disc 1 extends inwards.
- the contact element 3 is riveted into an opening in the bead 2.
- the contact element 3 consists of silver materials or multi-layer materials, whereas the snap disc 1 a spring material, such as stainless steel, copper beryllium or spring bronze consists.
- the snap disc 1 is partly half-shell-shaped because of its curvature Has course, so it is approximately star-shaped. hereby there are four mounting points 4, by means of which the snap disc 1 in one Switching element can be attached.
- the snap disc 1 is in a snap element is attached, that in the installed state of the snap disc 1 compared to the contact element 3, another, similarly formed Contact element is arranged.
- the conventional snap disk 1 "shown in FIGS. 3 and 4 is not a separate one Contact element on.
- the switch contact is through a spherical bead 2 " shown, which extends in the radial direction of the snap disc 1 "inwards. This makes it impossible to switch larger outputs.
Landscapes
- Manufacture Of Switches (AREA)
- Push-Button Switches (AREA)
Description
- Figur 1
- eine erfindungsgemäß ausgebildete Schnappscheibe mit einem aufgenieteten Kontaktelement in der Draufsicht,
- Figur 2
- die in Figur 1 dargestellte Schnappscheibe in Seitenansicht im Schnitt,
- Figur 3
- eine herkömmlich ausgebildete Schnappscheibe und
- Figur 4
- die in Figur 3 dargestellte Schnappscheibe in Seitenansicht im Schnitt
Claims (3)
- Schnappscheibenschalter mit einer gewölbten Schnappscheibe (1', 1"), welche in einer im höchsten Punkt der Wölbung angeordneten Sicke (2', 2") einen Schaltkontakt (3') aufweist, welcher als separates Kontaktelement ausgebildet ist, welches in der Sicke (2") befestigt ist,
dadurch gekennzeichnet, daß die Sicke (2') eine Öffnung aufweist, in der das Kontaktelement (3') eingenietet ist. - Schnappscheibenschalter nach Anspruch 1,
dadurch gekennzeichnet, daß die Sicke (2') als ebene Fläche ausgebildet ist. - Schnappscheibenschalter nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß sich die Sicke (2') in radialer Richtung der Schnappscheibe (1') nach außen erstreckt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19816946A DE19816946C1 (de) | 1998-04-17 | 1998-04-17 | Schnappscheibenschalter |
DE19816946 | 1998-04-17 | ||
PCT/DE1999/001193 WO1999054899A1 (de) | 1998-04-17 | 1999-04-17 | Schnappscheibenschalter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0990244A1 EP0990244A1 (de) | 2000-04-05 |
EP0990244B1 true EP0990244B1 (de) | 2002-11-20 |
Family
ID=7864760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99927695A Expired - Lifetime EP0990244B1 (de) | 1998-04-17 | 1999-04-17 | Schnappscheibenschalter |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0990244B1 (de) |
DE (2) | DE19816946C1 (de) |
ES (1) | ES2203149T3 (de) |
WO (1) | WO1999054899A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10051500C2 (de) * | 2000-10-17 | 2002-10-24 | Inovan Stroebe | Schaltelement mit einer Schnappscheibe und einem Schnappscheibenschalter |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2262777A (en) * | 1940-09-21 | 1941-11-18 | John M Roper | Quick acting positive contact switch |
US2977440A (en) * | 1958-11-05 | 1961-03-28 | Benjamin S Gerson | Flasher switch |
GB1195702A (en) * | 1967-05-12 | 1970-06-24 | Harry Stanley Woodhead | Hermetically Sealed Push Switch |
GB1224004A (en) * | 1967-08-18 | 1971-03-03 | Drayton Hydroflex Ltd | Improvements in or relating to snap-action switching arrangements |
DE7837597U1 (de) * | 1978-12-19 | 1979-04-26 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Tastenfeld mit mehreren Tastschaltern |
US4438304A (en) * | 1982-10-01 | 1984-03-20 | Cherry Electrical Products Corporation | Double throw snap action switch |
FR2735276B1 (fr) * | 1995-06-12 | 1997-07-18 | Itt Composants Instr | Commutateur a effet tactile et organe de declenchement pour un tel commutateur |
-
1998
- 1998-04-17 DE DE19816946A patent/DE19816946C1/de not_active Expired - Fee Related
-
1999
- 1999-04-17 ES ES99927695T patent/ES2203149T3/es not_active Expired - Lifetime
- 1999-04-17 DE DE59903456T patent/DE59903456D1/de not_active Expired - Lifetime
- 1999-04-17 EP EP99927695A patent/EP0990244B1/de not_active Expired - Lifetime
- 1999-04-17 WO PCT/DE1999/001193 patent/WO1999054899A1/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
DE59903456D1 (de) | 2003-01-02 |
ES2203149T3 (es) | 2004-04-01 |
DE19816946C1 (de) | 2000-03-09 |
WO1999054899A1 (de) | 1999-10-28 |
EP0990244A1 (de) | 2000-04-05 |
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