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US3757062A - Electric rotary switch - Google Patents

Electric rotary switch Download PDF

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Publication number
US3757062A
US3757062A US00236719A US3757062DA US3757062A US 3757062 A US3757062 A US 3757062A US 00236719 A US00236719 A US 00236719A US 3757062D A US3757062D A US 3757062DA US 3757062 A US3757062 A US 3757062A
Authority
US
United States
Prior art keywords
rotor
rotary switch
blades
stator
sectors
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
Application number
US00236719A
Other languages
English (en)
Inventor
P Lipschutz
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.)
BREVETS NEIMAN D EXPLOIT SOC D
D EXPLOITATION SOC DES BREVETS NEIMAN FR
Original Assignee
BREVETS NEIMAN D EXPLOIT SOC D
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 BREVETS NEIMAN D EXPLOIT SOC D filed Critical BREVETS NEIMAN D EXPLOIT SOC D
Application granted granted Critical
Publication of US3757062A publication Critical patent/US3757062A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
    • H01H27/06—Key inserted and then turned to effect operation of the switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H2001/5883—Electric connections to or between contacts; Terminals the extension of the contact being crimped around a wire

Definitions

  • ABSTRACT This electric rotary switch comprises a double track [52] [1.8. CI. 200/44, ZOO/61.19 51] 1m. 01. H0111 27/00 fmmed the swltch rotor and assoclated sets of twin resilient blades.
  • the present invention relates in general to combination electric rotary switch and steering lock units, and has particular reference to electric rotary switches for motor vehicles, notably key-operated antitheft ignition locks and the like.
  • the chief problem to be solved consists in creating a switch of very reduced dimensions permitting nevertheless the passage of currents of considerable values, having a good arcing resistance, a long useful life (i.e. it must be capable of performing a great number of operations) and several positions. Moreover, the cost of this device must remain within reasonable limits.
  • an electric rotary switch and steering lock unit comprising a rotor of particularly simple design, a likewise simple yet efficient fastening of the resilient contact blades on the switch stator, and the simultaneous use of the two sides of the electric rotor track, whereby the value of the current flowing through the points of contact between each resilient blade and the rotor contact track is splitted into two fractions while ensuring a mutual compensation of the pressures exerted on said rotor contact track and therefore on the antitheft lock rotor to which no transverse stress is applied. Under these conditions, an improved reliability is obtained.
  • FIG. 1 illustrates in partial longitudinal section an electric switch associated with a tumbler antitheft device
  • FIG. 2 is a cross section taken along the line defined by the arrows of FI GT 3, showing the switch rotor alone;
  • FIG. 3 is a side view of the same rotor
  • FIG. 4 is a perspective view of the conducting tracks
  • FIG. 5 is a fragmentary cross sectional view of the stator showing the fitting of the contact blades
  • FIG. 6 is an end view of the stator without the flexible contact blades g y
  • FIG. 8 is a side elevational view of the blade of FIG. 7.
  • a socalled tumbler antitheft lock provided with a rotary switch according to this invention is adapted to be controlled by means of a key 9 having a contour consistent with the inner cylinder.
  • the rotor 10 of this lock has a driving-end portion ll shaped to permit an accurate fitting thereof in a corresponding bore of the switch rotor 12.
  • the body of the switch rotor comprises a hub 12 and a tubular portion 13 both made of suitable insulating material.
  • This insulating portion is discontinued at predetermined locations where it is replaced by a conducting sector or track 14 of which a perspective view is shown in FIG. 4.
  • the insulating and conducting portions of the skirt thus formed provide the making and breaking of the contact according to the selected key position.
  • the track 14 is fitted in a groove 12" and retained therein by rivetting or crimping by means of tenons 14' (FIG. 4).
  • the current is distributed by means of conducting resilient blades 15 force fitted in adequate grooves 16' of stator 16 (FIG. 6) consisting of insulating material.
  • the blades 15 are slightly curved in the transverse direction in order to obtain the aforesaid force-fitting thereof.
  • These contact blades are formed initially from flat stock material and comprise each on the one hand a contact stud 15" and on the other hand a terminal portion 17 adapted to be tightly closed on a conductor end for connecting the switch to the electric circuit of the motor vehicle.
  • Their flexible lugs 15 are adapted to collapse when inserting the blade into the stator holes provided for receiving these blades, and subsequently to expand and thus take up any excess longitudinal play.
  • the transverse curvature of the blade portion embedded in the stator 16 is adequate for obtaining the desired force fitting and also taking up any possible play in the direction of rotation.
  • This tumbler lock and switch unit operates substantially like the tumbler lock and switch unit described and illustrated in the french Pat. No. 1.589.453 of July 15, 1968.
  • the provision of twin blades 15 is extremely advantageous in that a simultaneous contact is obtained on both sides of the conducting track 14 or on the insulating skirt 13 of the switch.
  • a rotary switch capable of being made with reduced overall dimensions comprising a rotor having alternately arranged conducting and insulating sectors adapted to associate with an electromechanical device and with an ignition switch, a stator adapted to cooperate with said rotor, a pair of conducting resilient blades anchored to said stator and extending on either side of said sectors and adapted to cooperate with said sectors to effect a double contact at each angular position of said rotor, and means connecting said pair of blades to a common source of current.
  • the rotary switch of claim 2 in which the stator has apertures therein and in which said blades are provided with positioning lugs which are force-fitted into said aping sectors comprise tracks having fastening tenons connected to the front portion of said base of said rotor hub in order to provide connections for operation of said rotary switch.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Lock And Its Accessories (AREA)
  • Contacts (AREA)
US00236719A 1971-03-24 1972-03-21 Electric rotary switch Expired - Lifetime US3757062A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7110308A FR2130865A5 (es) 1971-03-24 1971-03-24

Publications (1)

Publication Number Publication Date
US3757062A true US3757062A (en) 1973-09-04

Family

ID=9074032

Family Applications (1)

Application Number Title Priority Date Filing Date
US00236719A Expired - Lifetime US3757062A (en) 1971-03-24 1972-03-21 Electric rotary switch

Country Status (9)

Country Link
US (1) US3757062A (es)
AR (1) AR192430A1 (es)
BR (1) BR7201680D0 (es)
DE (1) DE2212805A1 (es)
ES (1) ES401573A1 (es)
FR (1) FR2130865A5 (es)
GB (1) GB1344806A (es)
IT (1) IT954513B (es)
SU (1) SU552912A3 (es)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4510354A (en) * 1984-04-12 1985-04-09 Doble Engineering Company Current tap selecting switch
US5871086A (en) * 1997-07-23 1999-02-16 Bp Holdings, Llc. Miniature momentary contact sliding switch
US6028277A (en) * 1998-08-14 2000-02-22 Bp Holdings, Llc Dual-gang switch plate with voice recorder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4510354A (en) * 1984-04-12 1985-04-09 Doble Engineering Company Current tap selecting switch
US6091037A (en) * 1996-07-24 2000-07-18 Bp Holdings, Llc Miniature momentary contact sliding switch
US6222140B1 (en) 1996-07-24 2001-04-24 Bp Holdings, Llc Miniature momentary contact sliding switch
US5871086A (en) * 1997-07-23 1999-02-16 Bp Holdings, Llc. Miniature momentary contact sliding switch
US6028277A (en) * 1998-08-14 2000-02-22 Bp Holdings, Llc Dual-gang switch plate with voice recorder

Also Published As

Publication number Publication date
DE2212805A1 (de) 1972-10-12
AR192430A1 (es) 1973-02-21
ES401573A1 (es) 1975-02-16
FR2130865A5 (es) 1972-11-10
GB1344806A (en) 1974-01-23
SU552912A3 (ru) 1977-03-30
BR7201680D0 (pt) 1973-05-31
IT954513B (it) 1973-09-15

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