EP0530465A1 - Mehrfachschalter, insbesondere für Kraftfahrzeuge - Google Patents

Mehrfachschalter, insbesondere für Kraftfahrzeuge Download PDF

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Publication number
EP0530465A1
EP0530465A1 EP92111559A EP92111559A EP0530465A1 EP 0530465 A1 EP0530465 A1 EP 0530465A1 EP 92111559 A EP92111559 A EP 92111559A EP 92111559 A EP92111559 A EP 92111559A EP 0530465 A1 EP0530465 A1 EP 0530465A1
Authority
EP
European Patent Office
Prior art keywords
contact
roller
bridge
fixed
fixed contacts
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.)
Withdrawn
Application number
EP92111559A
Other languages
German (de)
English (en)
French (fr)
Inventor
Günter Merten
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.)
Merit-Elektrik GmbH
Merit Elektrik GmbH
Original Assignee
Merit-Elektrik GmbH
Merit Elektrik 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.)
Filing date
Publication date
Application filed by Merit-Elektrik GmbH, Merit Elektrik GmbH filed Critical Merit-Elektrik GmbH
Publication of EP0530465A1 publication Critical patent/EP0530465A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/16—Contacts characterised by the manner in which co-operating contacts engage by abutting by rolling; by wrapping; Roller or ball contacts

Definitions

  • the invention relates to a multiple switch, in particular for motor vehicles, with an input fixed contact arranged on the switch base and with a plurality of outgoing fixed contacts which can be connected to the input fixed contact by one or more contact bridges controlled by ramps and interacting control parts, the contact bridges on one opposite the Switch base rotatable or displaceable driver under the effect of the required contact pressure between the contact bridge and fixed input contact on the one hand and contact bridge and fixed contacts on the other hand generating compression springs and are individually guided, and wherein each contact bridge has a freely rotatable axis relative to the driver, with a contact roller on the outgoing Rolls fixed contacts and directly cooperates with the control ramp via a control part, while according to the preamble of claim 2, a multiple switch, especially for Kraftf Ahrzeuge, with a fixed input contact arranged on the switch base and with several outgoing fixed contacts, which are connected to the fixed input contact by one or more contact bridges controlled by ramps and interacting control parts
  • the contact bridges are mounted and individually guided on a
  • Each contact bridge has either an axis which can be freely rotated relative to the driver and which rolls with a contact roller on the outgoing fixed contacts, or a contact roller which is rotatably arranged on the axis of each contact bridge, each contact bridge or contact roller interacting directly with the control ramp via its control part.
  • the contact rollers are themselves the control parts that interact with the control tracks or ramps.
  • control parts are not the contact rollers themselves, but rather extensions of the axes of the contact bridges.
  • a contact roller with a knurled circumferential surface which generates frictional liability when the contact roller rotates about its longitudinal axis by a direct engagement with the contact surface on a fixed contact bench. Due to the fact that the contact roller with its knurled peripheral surface comes into direct contact with the surface of the fixed contact, the frictional liability is constantly changed due to the inevitable contact erosion on the contact roller, so that there can be no question of a controlled further rotation of the contact roller during each switching operation.
  • Contact rollers with an increased friction contact surface are known from DE-OS 29 09 585, the contact roller at least in the area of its outer cylindrical surface at least in sections from an additive of conductive particles (metal dust) made of rubber or plastic.
  • conductive particles metal dust
  • the invention has for its object to further improve the service life and the electrical load capacity and thus the reliability of multiple switches according to the preamble of claim 1 or claim 2 with simple technical means that the contact erosion both on the rotating contact parts and on the fixed contacts is better distributed over their entire contact areas.
  • each contact bridge on its control part coming into contact with the ramp has a frictional liability for rotating the contact bridge with the contact roller about its longitudinal axis
  • the characterizing part of claim 2 which is ancillary to claim 1
  • the contact roller has on its control part coming into contact with the ramp a frictional liability for rotating the contact roller about its longitudinal axis generating peripheral surface.
  • each contact bridge or contact roller on their control part coming into contact with the control ramp a friction liability in the sense of a rotation of the contact bridge or the contact roller producing circumferential surface, there is the advantage that the contact bridge or contact roller is inevitably rotated independently of the electrical contact each time it comes into engagement with the control ramp.
  • the peripheral surface of the control part can have a roughening or knurling.
  • peripheral surface of the contact roller or the contact bridge that comes into contact with the control ramp can also be provided with a suitable friction lining, such as, for example, an adhesive surface located on the outer circumference of a push-on sleeve.
  • such a multiple switch can - according to the invention either independently or in connection with the roughening or knurling of the control part for the contact roller contact roller rolling on the fixed contacts of each contact bridge should be conical or spherical in shape so that with increasing contact erosion there is a shift in erosion in the direction of the longitudinal axis of the contact bridge on the circumference of the contact roller.
  • Fig. 1 shows the functional parts of the invention using the example of a rotary switch.
  • a center contact 2 is arranged in the middle on a base plate 1 of the switch, which is only shown as a broken off segment, which preferably serves as a fixed input contact, while closer to the outer circumference of the base plate 1, there are external fixed contacts 3, 3a, 3b, on which contact bridges 4.1 and 4.2 are connected unroll their outer contact rollers 4c.
  • Both contact bridges 4.1 and 4.2 are formed with rotationally symmetrical contact parts 4b which are in contact with the center contact 2 at the other end of the contact bridges.
  • each contact bridge 4.1, 4.2 are formed in one piece, the contact part 4b rolling on the center contact 2 being either a contact roller formed integrally on the axis 4a or a contact ball, the because of the radial arrangement of the contact bridges 4.1 and 4.2 on the driver 6 and the resulting shorter rolling path has a correspondingly smaller diameter or a smaller rolling circumference on the center contact 2 than the contact roller 4c of each individual contact bridge 4.1, 4.2 rolling on the fixed contacts 3a, 3b located further out.
  • each contact bridge 4.1 and 4.2 has, in addition to the contact roller 4c, a control part 4d projecting radially outward in the direction of the longitudinal axis of the contact bridge, which is designed as a cylindrical control extension and for each switching operation with a radial control ramp 5 arranged outside the fixed contacts 3a, 3b comes into contact.
  • This control extension has a frictional grip for rotating the contact bridge 4.1, 4.2 about its longitudinal axis, which can be provided either with a roughening or knurling or with a suitable frictional coating 4e.
  • the contact rollers 4c have a conical or possibly spherical outer circumference 4f, as can be seen in FIG. 2, so that with increasing contact erosion on the circumference of the contact roller 4c there is an axial displacement of erosion in the direction of the longitudinal axis of the contact bridge 4.1, 4.2.
  • control part 4d with the roughening, knurling or a friction lining as a control extension can also be part of the contact roller 4c if it is either permanently connected to the axis 4a or is freely rotatable on the axis 4a.
  • the multiple switch can be a rotary switch or a slide switch with linear movement.

Landscapes

  • Contacts (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
EP92111559A 1991-08-27 1992-07-08 Mehrfachschalter, insbesondere für Kraftfahrzeuge Withdrawn EP0530465A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4128315 1991-08-27
DE4128315A DE4128315C1 (enrdf_load_stackoverflow) 1991-08-27 1991-08-27

Publications (1)

Publication Number Publication Date
EP0530465A1 true EP0530465A1 (de) 1993-03-10

Family

ID=6439167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92111559A Withdrawn EP0530465A1 (de) 1991-08-27 1992-07-08 Mehrfachschalter, insbesondere für Kraftfahrzeuge

Country Status (5)

Country Link
US (1) US5264669A (enrdf_load_stackoverflow)
EP (1) EP0530465A1 (enrdf_load_stackoverflow)
JP (1) JPH0685286B2 (enrdf_load_stackoverflow)
AU (1) AU655833B2 (enrdf_load_stackoverflow)
DE (1) DE4128315C1 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10012077C1 (de) * 2000-03-14 2001-11-15 Bosch Gmbh Robert Schaltungsanordnung zum Verbinden einer elektrischen Maschine, insbesondere eines Startermotors zum Starten einer Verbrennungskraftmaschine, mit einer Spannungsquelle
DE102006060554A1 (de) * 2006-12-21 2008-06-26 Bayerische Motoren Werke Ag Lenkrad für ein Kraftfahrzeug und Kraftfahrzeug

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820126A (en) * 1954-12-16 1958-01-14 Gen Telephone Lab Inc Wiper assembly for automatic switches
DE3219853A1 (de) * 1982-05-27 1983-12-01 Günter 5277 Marienheide Merten Mehrfachschalter, insbesondere zuend-anlasserschalter fuer kraftfahrzeuge
DE3315994A1 (de) * 1982-05-27 1984-11-08 Günter 5277 Marienheide Merten Mehrfachschalter, insbesondere zuend-anlasserschalter fuer kraftfahrzeuge
DE3441161A1 (de) * 1984-10-09 1986-04-17 Günter 5277 Marienheide Merten Mehrfachschalter, insbesondere zuend-anlasserschalter fuer kraftfahrzeuge

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3024334A (en) * 1958-09-12 1962-03-06 Hurletron Inc Ball contacting device
US3455337A (en) * 1966-10-31 1969-07-15 Raychem Corp Irradiated article
DE1993598U (de) * 1968-06-22 1968-09-12 Calor Emag Elektrizitaets Ag Kontakteinrichtung.
GB1328966A (en) * 1970-01-17 1973-09-05 Lucas Industries Ltd Ignition switches
US3639708A (en) * 1970-08-13 1972-02-01 Stanley C Wolniak Rotary switch lock
DE2909585C2 (de) * 1979-03-12 1982-10-28 Siemens AG, 1000 Berlin und 8000 München Schiebeschalter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820126A (en) * 1954-12-16 1958-01-14 Gen Telephone Lab Inc Wiper assembly for automatic switches
DE3219853A1 (de) * 1982-05-27 1983-12-01 Günter 5277 Marienheide Merten Mehrfachschalter, insbesondere zuend-anlasserschalter fuer kraftfahrzeuge
DE3315994A1 (de) * 1982-05-27 1984-11-08 Günter 5277 Marienheide Merten Mehrfachschalter, insbesondere zuend-anlasserschalter fuer kraftfahrzeuge
DE3441161A1 (de) * 1984-10-09 1986-04-17 Günter 5277 Marienheide Merten Mehrfachschalter, insbesondere zuend-anlasserschalter fuer kraftfahrzeuge

Also Published As

Publication number Publication date
DE4128315C1 (enrdf_load_stackoverflow) 1993-02-11
JPH05250949A (ja) 1993-09-28
JPH0685286B2 (ja) 1994-10-26
AU2126892A (en) 1993-03-04
AU655833B2 (en) 1995-01-12
US5264669A (en) 1993-11-23

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