EP0485826A2 - Ressort à lame d'un interrupteur - Google Patents

Ressort à lame d'un interrupteur Download PDF

Info

Publication number: EP0485826A2
Authority: EP; European Patent Office
Prior art keywords: tongue; spring; leaf spring; roller; deformation
Prior art date: 1990-11-14
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.): Granted

Application number

EP91118700A

Other languages

German (de)

English (en)

Other versions

EP0485826A3 (en

EP0485826B1 (fr

Inventor

Albert King

Günther Marquardt

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.)

Marquardt GmbH

Original Assignee

Marquardt GmbH

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.)

1990-11-14

Filing date

1991-11-02

Publication date

1992-05-20

1991-11-02 Application filed by Marquardt GmbH filed Critical Marquardt GmbH

1992-05-20 Publication of EP0485826A2 publication Critical patent/EP0485826A2/fr

1993-01-13 Publication of EP0485826A3 publication Critical patent/EP0485826A3/de

1995-01-18 Application granted granted Critical

1995-01-18 Publication of EP0485826B1 publication Critical patent/EP0485826B1/fr

2011-11-02 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- H01H5/18—Energy stored by deformation of elastic members by flexing of blade springs

Definitions

the invention relates to a leaf spring switch according to the preamble of claim 1.
the invention has for its object to provide a coil spring lock that is suitable for automatic assembly and offers reliable protection against unintentional unhooking.
the advantage for the manufacture of the leaf spring switch is that the proposed deformations can be applied during the manufacture of the spring lever and the switching tongue, ie in the corresponding stamping and bending machines.
the roller spring is then installed essentially as before.
the window cutouts in the roller spring on the one hand and the deformed front tongue sections of the switching tongue and the spring lever on the other hand are dimensioned or matched to one another in such a way that the roller spring with their Windows can be joined over the deformed front tongue sections. This process can be facilitated by the fact that the deformation has a sloping contour towards the tip of the tongue.
Different deformation variants can also be combined in one switch, in that the switching tongue is given a different deformation than the spring lever or only one tongue of these two components is deformed at all. Furthermore, it may be advantageous to choose the deformation cross section such that insertion is only possible if the tongue is rotated a little about the longitudinal axis of the tongue with respect to the window. The roller spring and the other component in question must therefore deform a little elastically for insertion. This creates an additional backup.
the leaf spring switch shown in Fig. 1 is designed as a changeover switch.
a spring lever 2, a switching tongue 3 and two connection springs 4 and 5 are embedded in a console 1.
the connection ends of the last three spring elements mentioned are designed as solder lugs.
a roller spring 6 is clamped in the tongues 2a and 3a of the spring lever or the switching tongue.
the connection point between the coil spring 6 and the spring lever 2 is shown in more detail in FIGS. 2 and 3.
the free end of the spring lever 2, which has been folded twice, has two support shoulders 7 and in the middle a protruding tongue 2a, which ends in a rounded tip.
an upwardly protruding nose 8 is embossed, which drops towards the front and becomes narrower. With h1 the height of the nose plus the thickness of the spring lever 2 is designated.
the roller spring 6 has two transversely extending rectangular windows 9, the height of which is measured so that the tongue 2a can be inserted smoothly but without much play. After assembly, as shown, the one transverse edge of the window 9 lies behind the nose 8, while the support shoulders 7 lie next to the window 9 on the surface of the tensioned roller spring 6.
FIGS. 4 and 5 The free end of the switching tongue 3 with its tongue 3a can be seen from FIGS. 4 and 5.
two cuts 10 are made in the transverse direction, whereby approximately triangular legs 11 and 12 are partially separated. These legs 11 and 12 are bent around their longitudinal edges on opposite sides by about 60 °, as best shown in FIG. 5.
This also shows one of the windows 9 of the roller spring 6 in dash-dotted lines in plan view, from which it can be seen that the tongue 3a can only be inserted obliquely through the window 9 with this deformation.

Landscapes

Springs (AREA)
Manufacture Of Switches (AREA)
Tumbler Switches (AREA)

EP91118700A 1990-11-14 1991-11-02 Ressort à lame d'un interrupteur Expired - Lifetime EP0485826B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE4036236		1990-11-14
DE4036236A DE4036236A1 (de)	1990-11-14	1990-11-14	Blattfederschalter

Publications (3)

Publication Number	Publication Date
EP0485826A2 true EP0485826A2 (fr)	1992-05-20
EP0485826A3 EP0485826A3 (en)	1993-01-13
EP0485826B1 EP0485826B1 (fr)	1995-01-18

Family

ID=6418235

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP91118700A Expired - Lifetime EP0485826B1 (fr)	1990-11-14	1991-11-02	Ressort à lame d'un interrupteur

Country Status (4)

Country	Link
US (1)	US5239151A (fr)
EP (1)	EP0485826B1 (fr)
DE (2)	DE4036236A1 (fr)
ES (1)	ES2069799T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19523486B4 (de) *	1995-06-28	2006-07-06	Marquardt Gmbh	Schnappschalter
US5661274A (en) *	1995-08-08	1997-08-26	Eaton Corporation	Precision double-pole single-throw switch assembly
US20100236912A1 (en) *	2009-03-20	2010-09-23	Honeywell International Inc.	Snap action switch with a non-metal interchangeable spring

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2260964A (en) *	1938-10-19	1941-10-28	Allen Bradley Co	Snap switch
GB1133332A (en) *	1965-01-27	1968-11-13	Plessey Uk Ltd	Improvements relating to snap-action mechanisms
US3291931A (en) *	1965-07-12	1966-12-13	Rogers Gilbert	Oblong end opening switch construction
US3322915A (en) *	1966-01-03	1967-05-30	Texas Instruments Inc	Snap acting overcentering motion transfer means for electrical switch
US3662132A (en) *	1970-01-26	1972-05-09	Robertshaw Controls Co	Electrical switch construction
DE2356989A1 (de) *	1973-11-15	1975-05-22	Marquardt J & J	Schnappschalter
DE3208990A1 (de) *	1982-03-12	1983-09-22	Marquardt Gmbh, 7201 Rietheim-Weilheim	Elektrischer schalter
DE3308188C2 (de) *	1983-03-08	1985-10-24	Georg Dr.-Ing. 8152 Feldkirchen-Westerham Spinner	Schnappschalter

1990
- 1990-11-14 DE DE4036236A patent/DE4036236A1/de not_active Withdrawn
1991
- 1991-11-02 ES ES91118700T patent/ES2069799T3/es not_active Expired - Lifetime
- 1991-11-02 EP EP91118700A patent/EP0485826B1/fr not_active Expired - Lifetime
- 1991-11-02 DE DE59104321T patent/DE59104321D1/de not_active Expired - Fee Related
- 1991-11-13 US US07/791,178 patent/US5239151A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
EP0485826A3 (en)	1993-01-13
DE59104321D1 (de)	1995-03-02
ES2069799T3 (es)	1995-05-16
US5239151A (en)	1993-08-24
EP0485826B1 (fr)	1995-01-18
DE4036236A1 (de)	1992-05-21

Legal Events

Date	Code	Title	Description
1992-04-03	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1992-05-20	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): CH DE ES FR GB IT LI
1992-11-24	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1993-01-13	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): CH DE ES FR GB IT LI
1993-07-21	17P	Request for examination filed	Effective date: 19930519
1994-08-10	17Q	First examination report despatched	Effective date: 19940624
1994-12-02	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1995-01-18	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): CH DE ES FR GB IT LI
1995-03-02	REF	Corresponds to:	Ref document number: 59104321 Country of ref document: DE Date of ref document: 19950302
1995-04-14	ITF	It: translation for a ep patent filed
1995-04-26	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 19950323
1995-04-28	ET	Fr: translation filed
1995-05-16	REG	Reference to a national code	Ref country code: ES Ref legal event code: FG2A Ref document number: 2069799 Country of ref document: ES Kind code of ref document: T3
1995-11-18	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1995-11-18	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1996-01-10	26N	No opposition filed
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2005-11-16	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: CH Payment date: 20051116 Year of fee payment: 15
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