EP1288984B1 - Drehschalter - Google Patents

Drehschalter Download PDF

Info

Publication number
EP1288984B1
EP1288984B1 EP20020018726 EP02018726A EP1288984B1 EP 1288984 B1 EP1288984 B1 EP 1288984B1 EP 20020018726 EP20020018726 EP 20020018726 EP 02018726 A EP02018726 A EP 02018726A EP 1288984 B1 EP1288984 B1 EP 1288984B1
Authority
EP
European Patent Office
Prior art keywords
switch
rotary
slide
stops
restoring
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 - Fee Related
Application number
EP20020018726
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1288984A3 (de
EP1288984A2 (de
Inventor
Klaus Kriessler
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.)
Continental Automotive GmbH
Original Assignee
Siemens VDO Automotive AG
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 Siemens VDO Automotive AG filed Critical Siemens VDO Automotive AG
Publication of EP1288984A2 publication Critical patent/EP1288984A2/de
Publication of EP1288984A3 publication Critical patent/EP1288984A3/de
Application granted granted Critical
Publication of EP1288984B1 publication Critical patent/EP1288984B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force

Definitions

  • the invention relates to a rotary switch with a manually pivotally mounted about a pivot axis rotary knob, which is pivotable from its central rest position into a right and a left switch position and has a shift stop, by the switch in the right and in the left switch position operable is, as well as with a restoring device by which the knob is automatically from a position deviating from its rest position pivoting position by spring force in its rest position and fixed in the rest position.
  • Such a known rotary switch has a pivotable by the knob from a central rest position into a right and a left switch position switch pin with a radially continuous recess.
  • a pivotable by the knob from a central rest position into a right and a left switch position switch pin with a radially continuous recess.
  • At both mouth openings of the recess each projecting a plunger with its one end, wherein the two plungers are guided with their located in the recess region slidably in the recess and acted upon by a between the two plungers with bias in the recess arranged compression spring to the outside are.
  • Both plungers protrude with their outwardly directed ends in each case into the interior of an approximately V-shaped recess, the inner points coaxial with the recess face each other and the lateral edges of which approach ramps to the switch pin.
  • the rotary switch has taken its mean rest position.
  • the outwardly projecting ends of the plungers slide along the lateral flanks of the V-shaped recesses until they abut stops at the ends thereof. Since these flanks approach the switch pin, the compression spring between the plungers is stretched more and more in this pivotal movement.
  • the plungers slide under the application of force to the compression spring along the ramped flanks of the V-shaped recesses until they reach the inner peaks of the V-shaped recesses. As a result, the knob is pivoted back to its rest position.
  • the manufacturing tolerances of the recess in the switch pin Due to the manufacturing tolerances of the recess in the switch pin, the manufacturing tolerances of the two plungers and the tolerance-related deviations of the inner peaks of the V-shaped recesses of the longitudinal axis of the recess in the switch pin not only the rest position of the knob is insufficiently well defined, but there is also a considerable Game by which the knob is movable with the switch pin in its rest position.
  • the document FR 2 782 413 discloses a switch according to the preamble of claim 1.
  • the object of the invention is therefore to provide a rotary switch of the type mentioned, in which the knob is at least largely kept free of play in its well-defined rest position.
  • the knob has two return stops, which are arranged at a distance from each other and each at a radial distance to the pivot axis on the knob and pivotable about the pivot axis with the knob and that a radially slidably guided to the pivot axis slider of a spring force is acted upon with its one end face to rest on the return stops.
  • the slide which is largely free of play over a large guide length, acts as the only displaceable component with its front side directly on the return stops on the rotary knob, the rest position of the rotary knob is precisely defined when the two return stops abut against each other at the end of the slide. If there is only one return stop on the end face of the slider, a torque acts on the rotary knob under the spring force and twists it until the second return stop abuts against the end face of the slider.
  • a smooth running of the return of the knob can be done by a sliding coating on the front side of the slider or on the return strokes.
  • the return stops are arranged at an angular distance of approximately between 100 ° and 220 °, preferably of approximately 130 ° on the rotary knob, then a relatively large displacement of the slider is achieved at a relatively low angle of rotation, resulting in a significant steady increase in the required torque during rotation of the slider Turn knob from its rest position leads. Inadvertent switching of one of the switches is thus considerably more difficult.
  • the slide can be biased by a compression spring to rest against the return stops in a simple and low-component manner, which is supported on a support stop of the switch plate.
  • the compression spring with a part of its longitudinal extension in a guided in the guide direction of the slide in the slide chamber.
  • the projecting from the guide bore portion of the switch pin may be formed like a pipe section, wherein the radially circumferentially directed ends of the pipe section forming the return stops.
  • a simple latching assembly of the restoring stops, the switch pin and the knob integrally formed component is achieved if at the axially free end of the pipe section of the switch pin a radially resilient catch is formed, which surrounds the axially free end of the tubular extension and that at the projecting through the guide bore to the other side of the switch plate end of the knob is arranged axially supported on the switch plate.
  • a parallel to the pivot axis extending shift stop can be arranged on the knob, which projects through a ring-section-like slot in the switch plate and through which on the side facing away from the knob side of the switch plate arranged at the two ends of the slot switch can be actuated.
  • the rotary switch shown in the figures which is used to adjust the temperature of an air conditioner in a motor vehicle, has a manually rotatable knob 1, from which a switch pin 2 projects, whose longitudinal axis is the pivot axis 4 of the knob 1 and switch pin 2 and in the region of its free end is designed as a pipe section 14.
  • a manually rotatable knob 1 from which a switch pin 2 projects, whose longitudinal axis is the pivot axis 4 of the knob 1 and switch pin 2 and in the region of its free end is designed as a pipe section 14.
  • a pipe section 14 at an angular distance of about 130 ° radially circumferentially directed ends of the pipe section 14 form return stops 3 and 3 '.
  • a switching stop 5 is arranged.
  • the switch pin 2 is pivotally mounted in a guide bore 6 about the pivot axis 4, which is formed in a stationary switch plate 7.
  • the free end of the switch pin 2 protrudes on the side facing away from the knob 1 side of the switch plate 7.
  • the switching stopper 5 extends through a ring-section-like, continuous slot 8 in the switch plate 7 and faces away from the knob 1 Side of the switch plate 7 forth.
  • the annular portion-like slot 8 each formed as a push-button switch 9 and 9 'is arranged on the switch plate 7, whose switching elements 10 and 10' can be acted upon by the switching stop 5.
  • the guide bore 6 is continued by a pipe-section-like projection 11, wherein the radially encircling extent of the pipe section-like projection 11 is less than the radially encircling extent of the pipe section 14 of the switch pin. 2
  • a radially outwardly resilient latch 12 is formed, which engages with its locking lug 13, the axially free end of the pipe section-like projection 11.
  • a slide 16 is guided with guide grooves 17 formed thereon radially to the pivot axis 4.
  • compression spring 18 which is supported at its other end to a support stop 19 of the switch plate 7, the slide 16 with its the compression spring 18 opposite end face 20 at the return stops 3 and 3 'in Investment held.
  • the compression spring 18 is guided in a chamber 21 extending in the direction of movement of the slider 16 in the slide chamber 21 and arranged under bias between the support stop 19 and the slider 16.
  • the orientation of the guides 15 of the slider 16 is such that switch pin 2 and knob 1 are in a central rest position between the two switching positions in which the switching stop 5, the switches 9 and 9 'actuated. In this rest position both return stops 3 and 3 'at their contact surfaces 22 and 22' on the end face 20 of the slider in Appendix.
  • the contact surfaces 22 and 22 ' are formed like a ramp and symmetrically inclined to each other to the guide direction of the slider 16. Here is the inclination to the Edge regions of the slider 16 is removed from the pivot axis 4 and has an angle of about 70 ° to the guide direction of the slider 16.
  • This roof-like design of the contact surfaces 22 and 22 ' reduces on the one hand the frictional resistance between contact surfaces 22, 22' and return stops 3, 3 'when returning from a pivoting position to the rest position.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Switches With Compound Operations (AREA)
EP20020018726 2001-08-28 2002-08-21 Drehschalter Expired - Fee Related EP1288984B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001142006 DE10142006C1 (de) 2001-08-28 2001-08-28 Drehschalter
DE10142006 2001-08-28

Publications (3)

Publication Number Publication Date
EP1288984A2 EP1288984A2 (de) 2003-03-05
EP1288984A3 EP1288984A3 (de) 2004-06-16
EP1288984B1 true EP1288984B1 (de) 2007-12-12

Family

ID=7696799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020018726 Expired - Fee Related EP1288984B1 (de) 2001-08-28 2002-08-21 Drehschalter

Country Status (3)

Country Link
EP (1) EP1288984B1 (es)
DE (2) DE10142006C1 (es)
ES (1) ES2295270T3 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8404990B2 (en) 2010-06-30 2013-03-26 3M Innovative Properties Company Switch system having a button travel limit feature

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931484A (en) * 1974-12-23 1976-01-06 General Electric Company Lever operated limit switch having a mechanism to increase overtravel
JPS6464372A (en) * 1987-09-04 1989-03-10 Osaka Titanium Solar cell
US5408062A (en) * 1993-06-22 1995-04-18 Augat, Inc. Rotary switch
DE19539847C1 (de) * 1995-10-26 1997-01-02 Daimler Benz Ag Lenkrad
JP3791562B2 (ja) * 1996-08-15 2006-06-28 ソニー株式会社 操作装置
FR2782413B1 (fr) * 1998-08-12 2000-11-10 Valeo Electronique Commutateur rotatif a impulsion, notamment pour vehicule automobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8404990B2 (en) 2010-06-30 2013-03-26 3M Innovative Properties Company Switch system having a button travel limit feature

Also Published As

Publication number Publication date
EP1288984A3 (de) 2004-06-16
DE50211342D1 (de) 2008-01-24
DE10142006C1 (de) 2003-04-24
ES2295270T3 (es) 2008-04-16
EP1288984A2 (de) 2003-03-05

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