EP1008159A1 - Commutateur pourvu d'une rampe de soulevement - Google Patents

Commutateur pourvu d'une rampe de soulevement

Info

Publication number
EP1008159A1
EP1008159A1 EP97900589A EP97900589A EP1008159A1 EP 1008159 A1 EP1008159 A1 EP 1008159A1 EP 97900589 A EP97900589 A EP 97900589A EP 97900589 A EP97900589 A EP 97900589A EP 1008159 A1 EP1008159 A1 EP 1008159A1
Authority
EP
European Patent Office
Prior art keywords
contact
bridge
switch according
sections
tracks
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.)
Granted
Application number
EP97900589A
Other languages
German (de)
English (en)
Other versions
EP1008159B1 (fr
Inventor
Karl Simonis
Walter Hecht
Rudolf Klein
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.)
Valeo Schalter und Sensoren GmbH
Original Assignee
ITT Automotive Europe GmbH
Valeo Schalter und Sensoren GmbH
Alfred Teves 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7783249&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1008159(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ITT Automotive Europe GmbH, Valeo Schalter und Sensoren GmbH, Alfred Teves GmbH filed Critical ITT Automotive Europe GmbH
Publication of EP1008159A1 publication Critical patent/EP1008159A1/fr
Application granted granted Critical
Publication of EP1008159B1 publication Critical patent/EP1008159B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/56—Angularly-movable actuating part carrying contacts, e.g. drum switch
    • H01H19/563—Angularly-movable actuating part carrying contacts, e.g. drum switch with an initial separation movement perpendicular to the switching movement

Definitions

  • the invention relates to a switch for motor vehicles, in particular steering column switches.
  • Such switches are said to be suitable, on the one hand, for switching substantial load currents, so that they are suitable for switching through supply currents for lamps and motors.
  • switches of this type are increasingly used for the indirect actuation of current consumers, which are then controlled directly via electronic circuits. It is therefore advantageous if steering column switches of this type are also suitable for switching through weak control currents.
  • Switches have already been proposed in which contact sections arranged adjacent to one another and fixed to the housing are electrically connected or disconnected to one another by pushing movement of contact bridges within the contact plane.
  • a disadvantage of such switches is that the two contact sections are separated by insulating material which comes into close contact with the contact bridge when it is passed over. As a result, residues of insulating material or the plastic housing, in which the contact sections are embedded, through which various contact bridges are added. When the contact bridge runs onto another contact section, the insulating material is then partly transferred to the contact track of this contact section or burned onto the contact surfaces by the arc that may arise. This results in contamination on the contact surface.
  • the invention is therefore based on a switch of the type resulting from the preamble of claim 1.
  • the object of the invention is to provide a switch with small dimensions, the contact surfaces of which are largely kept free of impurities, so that it is suitable both for switching larger and smaller currents.
  • the invention is achieved by the combination of features resulting from the characterizing part of claim 1.
  • the invention therefore consists in lifting the contact bridge at a suitable point before it leaves a contact section and then lowering it at a suitable point in a new contact section.
  • the sliding movement is combined with a lifting movement at the points which are important for the switchover.
  • the advantage resulting from this is that the actual contact surface does not come into contact with the insulating material surrounding the contact sections.
  • one contact part does not yet form an arc when it is lifted off because the other contact part is still in close electrical contact with the contact section.
  • a particularly simple construction suitable for lifting off a contact part is described by the features according to claim 2.
  • a ramp is then provided, via which a contact part of the contact bridge moving along a contact section is raised perpendicular to the plane of the contacts and lowered again over the next contact section.
  • the moving contact part thus follows the inclined, inclined ramp surfaces.
  • At least one ramp is then provided, which is arranged laterally of the contact surfaces of the contact bridge and contact section, so that the area of the contact bridge which runs onto the ramp does not come into contact with the contact surface on the contact sections.
  • the feature combination according to claim 7 is recommended in a further development of the invention.
  • an almost punctiform contact surface of the contacts can be achieved.
  • the combination of features according to claim 8 is recommended in a further development.
  • the resilient contact of the contact bridge on the contact tracks ensures a secure contact pressure even when the contact track is uneven. An increased spring pressure can still be used to keep the contact surfaces clean.
  • the contact bridge is limited in its path in the direction of the contact path, which brings advantages when installing the actuating lever in which the movable contact bridge is held securely and captively.
  • the features of claim 10 further create the possibility of locking the contact bridges in the actuating lever, so that they are easily mounted there, movably guided relative to the actuating lever and still opposite this operating lever are secured against loss.
  • the present invention makes sense to apply the present invention to slide switches in which the contact bridge performs a straight-ahead movement.
  • the invention is advantageously also suitable for contact sections or contact tracks which are laid one behind the other in a plane at an angle, the contact tracks themselves also being able to be curved. It is particularly advisable if the contact tracks on the contact sections are curved in the same direction and lie one behind the other with the same radius of curvature.
  • Such a construction is particularly suitable for steering column switches in which the actuating lever carries out a pivoting movement about a pivot point, which results in a circular sector-shaped movement of the contact bridge.
  • a simple structure for the contact tracks results from the features of claim 13. Thereafter, the contact track can be shaped out of the contact sections by stamping, so that such a contact section can also be punched out of a simple contact plate.
  • the contact sections can advantageously be formed from a lead frame.
  • the contact sections In order to be able to better insert and hold the individual contact tracks in an injection mold, they are still connected to electrically conductive, mechanical connecting webs during the spraying process, which are separated by stamping after the spraying process, regardless of whether these separating webs are now encapsulated with plastic or have been kept free from encapsulation.
  • the combination of features according to claim 16 is recommended in a further development.
  • the two contact areas which serve both to guide the contact bridge through the ramps and to make contact, are spatially separated from one another and electrically with one another in the direction of extent of the contact tracks connected.
  • the contact areas can also be punched out of a single contact plate and formed by subsequent deformation.
  • the two contact areas are advantageously electrically connected to one another by a web.
  • This mechanically stiff web is also suitable, according to claim 16, for molding a centering projection therein which forms a point of application for the prestressing spring. Since the contact areas effect both a mechanical control function with respect to the associated ramp and also a contact with the contact section fixed to the housing, the feature combination according to claim 17 is recommended in a further development of the invention. This ensures that the contact bridge cannot get caught in relation to the ramp.
  • the ramp slope should also be comparatively flat and generally not exceed 2/10 mm, which in particular prevents switching noises and extends the service life of the switch.
  • Fig. 1 shows a schematic, spatial representation of a section of a switch housing with injected contact tracks and seated contact bridge
  • Fig. 2 shows a section through the arrangement of FIG. 1 to the side of the contact track and
  • Fig. 3 is a reduced plan view of an intermediate floor of a switch housing, in which a plurality of parallel contact sections are injected.
  • Fig. 1 shows the bottom surface 1 of a switch according to the invention, in which the contact sections 2, 3 are cast.
  • the two contact sections are electrically separated from one another at the level of the ramp 3.
  • the ramp can also be molded on when the base surface 1 is sprayed, so that it is formed in one piece with the base surface from the same material.
  • Contact tracks 4 are formed from the contact sections 3 by stamping, a contact bridge 6 with its two contact areas 7 and 8 being seated on the contact track 4 of the contact section 2.
  • Each of the two contact areas 7, 8 has contact areas 9, 10 and 11, respectively, the contact areas 9, 10 running onto the ramp 5, while the contact area 11 is used exclusively for contacting the associated contact path 4 of the contact section 2.
  • the two contact areas 7, 8 are connected to one another by a bridge member 12 designed as a web.
  • the web has a centering projection 13 which defines the point of application of a spring 14.
  • the spring is supported with its free end in FIG. 1 on an operating lever, not shown, of a steering column switch, on which two lugs 15, 16 also act at the same time, which are used to guide the contact bridge 6 in the operating lever.
  • the contact tracks 4 have a curvature 18, while the contact regions 7, 8 are each provided with a curved surface 19, 20.
  • the districts 9, 10 run onto the two ramps 21, 22 of the double ramp 5 and thus raise the contact district 11 from the associated contact track 4. If the contact bridge 6 is moved further in the same direction, the contact areas 9, 10 are lowered again and the contact area 11 then sits on the contact path 4 of the
  • the contact track 4 of the contact sections 2, 3 can be formed by being stamped out of the lead frame.
  • FIG. 2 shows a side view of the contact bridge 6, which is seated on the contact track 4 of the contact section 2. The cut is made somewhat to the side of the contact path, so that only a ramp web 23 connecting the two partial ramps 21, 22 can be seen.
  • Fig. 2 also indicates by a dashed line grooves 24 which laterally surround the upper edge region of the contact track 4 and thus not only allow centering of the contact bridge 6 on the contact track 4, but also an enlarged contact area if there is a need for this. 1 and 2 that the associated contact sections 2, 3 are aligned with one another in their longitudinal direction, but they can also be arranged offset with respect to one another if the contact bridge 6 is designed accordingly.
  • FIGS. 1 and 2 also shows the possibility of providing curved contact tracks 4, plug connections which are not shown in the drawing being formed on the associated contact sections at the same time.
  • the contact sections were punched together from a contact plate and then connecting webs were separated by punching through holes. This results in a considerably more complicated shape for the contact sections than shown in FIGS. 1 and 2.

Landscapes

  • Contacts (AREA)
  • Switches With Compound Operations (AREA)
  • Slide Switches (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Push-Button Switches (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

L'invention concerne un commutateur, de préférence un commutateur de colonne de direction comprenant un organe d'actionnement poussé de façon à sensiblement glisser sur les sections de contact (2, 3) fixées au boîtier. L'objectif de l'invention est l'obtention d'un commutateur de colonne de direction qui, bien qu'étant de petite dimension, assure en permanence un bon niveau de contact entre les contacts à relier. Cet objectif est atteint grâce à des rampes (5, 21, 22) qui soulèvent le pont de contact (6) dans la zone de transition. D'autres développements concernent la conception des rampes (5, 21, 22), de la piste conductive (4) et du pont de contact (6).
EP97900589A 1996-01-20 1997-01-10 Commutateur pourvu d'une rampe de soulevement Revoked EP1008159B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19601985A DE19601985A1 (de) 1996-01-20 1996-01-20 Schalter mit Abheberampe
DE19601985 1996-01-20
PCT/EP1997/000093 WO1997026672A1 (fr) 1996-01-20 1997-01-10 Commutateur pourvu d'une rampe de soulevement

Publications (2)

Publication Number Publication Date
EP1008159A1 true EP1008159A1 (fr) 2000-06-14
EP1008159B1 EP1008159B1 (fr) 2003-05-21

Family

ID=7783249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97900589A Revoked EP1008159B1 (fr) 1996-01-20 1997-01-10 Commutateur pourvu d'une rampe de soulevement

Country Status (9)

Country Link
US (1) US6046413A (fr)
EP (1) EP1008159B1 (fr)
BR (1) BR9707038A (fr)
CZ (1) CZ226798A3 (fr)
DE (2) DE19601985A1 (fr)
ES (1) ES2194176T3 (fr)
HU (1) HUP9900970A3 (fr)
MX (1) MX9805692A (fr)
WO (1) WO1997026672A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1120510C (zh) * 1998-02-24 2003-09-03 本田制锁有限公司 旋转开关装置
JP4546639B2 (ja) * 2000-12-06 2010-09-15 ナイルス株式会社 インヒビタースイッチ
JP4285143B2 (ja) * 2003-08-05 2009-06-24 パナソニック株式会社 車両用スイッチ
US7206952B2 (en) * 2003-12-30 2007-04-17 Valeo Electrical Systems, Inc. Digital wake-up signal from switch transition of two analog signals
US7030326B2 (en) * 2003-12-30 2006-04-18 Valeo Electrical Systems, Inc. Digital wake-up signal from analog signal transition
WO2008118694A1 (fr) 2007-03-22 2008-10-02 Dynasty Footwear, Ltd. Matériaux en feuilles composites et leurs procédés de fabrication
DE102007029619B4 (de) 2007-06-27 2019-03-28 Marquardt Gmbh Bedienelement

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE312494C (fr) *
DE1171499B (de) * 1963-05-30 1964-06-04 Rudolf Schadow Schiebe- oder Drehschalter
FR1445150A (fr) * 1964-08-26 1966-07-08 Spectrol Electronics Corp Commutateur miniature pour circuit imprimé
DE2017348A1 (de) * 1969-04-19 1970-10-22 Amp Inc., Harrisburg, Pa. (V.St.A.) Elektrischer Wählschalter
US3549832A (en) * 1969-04-21 1970-12-22 Essex International Inc Hazard warning switch construction
US3598934A (en) * 1969-07-07 1971-08-10 Black & Decker Mfg Co Multiple pole switch for producing simultaneous opposite switching operations
GB1490780A (en) * 1974-06-03 1977-11-02 Amp Inc Electric switch
US4012608A (en) * 1974-08-20 1977-03-15 Amp Incorporated Miniature switch with substantial wiping action
US4168404A (en) * 1976-11-17 1979-09-18 Amp Incorporated Impedance programming dip switch assembly
JPS6331454Y2 (fr) * 1981-02-18 1988-08-23
DE3315994A1 (de) * 1982-05-27 1984-11-08 Günter 5277 Marienheide Merten Mehrfachschalter, insbesondere zuend-anlasserschalter fuer kraftfahrzeuge
US4491703A (en) * 1983-08-30 1985-01-01 Grayhill, Inc. Detenting and contact registration system for a linear dip switch
US4897013A (en) * 1986-11-28 1990-01-30 Westendorf Mfg. Co., Inc. Electrically operated material handling attachment for a garden tractor or the like
US4897513A (en) * 1988-03-11 1990-01-30 Alps Electric Co., Ltd. Rotary switch
US4841105A (en) * 1988-04-11 1989-06-20 Amp Incorporated Slide switch configured as an integrated circuit package
DE4020821C2 (de) * 1990-06-29 2001-08-02 Teves Gmbh Alfred Elektrischer Schalter
DE4226508C2 (de) * 1992-08-11 2002-05-29 Teves Gmbh Alfred Schiebeschalter
JPH1021786A (ja) * 1996-06-28 1998-01-23 Niles Parts Co Ltd 摺動スイッチの接点構造

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9726672A1 *

Also Published As

Publication number Publication date
US6046413A (en) 2000-04-04
WO1997026672A1 (fr) 1997-07-24
ES2194176T3 (es) 2003-11-16
HUP9900970A3 (en) 2000-04-28
MX9805692A (es) 1998-11-29
DE59710146D1 (de) 2003-06-26
CZ226798A3 (cs) 1998-12-16
HUP9900970A2 (hu) 1999-07-28
BR9707038A (pt) 1999-07-20
DE19601985A1 (de) 1997-07-24
EP1008159B1 (fr) 2003-05-21

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