US3867601A - Electric multipolar rotatable switch with helical rotor drive - Google Patents

Electric multipolar rotatable switch with helical rotor drive Download PDF

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Publication number
US3867601A
US3867601A US407387A US40738773A US3867601A US 3867601 A US3867601 A US 3867601A US 407387 A US407387 A US 407387A US 40738773 A US40738773 A US 40738773A US 3867601 A US3867601 A US 3867601A
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US
United States
Prior art keywords
rotor
strips
base
stator
switch
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
US407387A
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English (en)
Inventor
Paul Lipschutz
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Valeo Neiman SA
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Individual
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Filing date
Publication date
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Application granted granted Critical
Publication of US3867601A publication Critical patent/US3867601A/en
Anticipated expiration legal-status Critical
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H25/00—Switches with compound movement of handle or other operating part
    • H01H25/06—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement
    • 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
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding

Definitions

  • the present invention relates to multipolar or multiple throw electric switches or the like. There is known a large number of multipolar electric switches designed and made for various applications and uses.
  • the electric switch which is the subject matter of the present invention is a solution of the difficult problem of avoiding interferences between angular positions.
  • Another object of the invention is to provide perfect contacts between stationary and movable electrodes pressed or pushed against each other by a resilient device for some positions and with a suitable pressure.
  • a further object of the invention is to withdraw such resilient means from the flow or passage of electrical current therethrough which would cause in course of time through heating up (JOULE effect) combined with mechanical stresses or strains, a decay of the original elasticity or resiliency which should remain constant since it is a requirement for achieving a good operation.
  • Still another object of the invention is to periodically clean the surfaces of the contacts which may be impaired or spolied by the flow or passage of electric current therethrough or by sparks, in particular through shifting or displacing the small areas where contacts are made.
  • the switch according to the invention enables to attain these objects on the one hand by the use of new materials and on the other hand by conversion of rotary movement into linear movement thereby removing any kinematical constraints due to the purely angular displacement.
  • FIG. 1 is a view in vertical diametral section of the switch assembly taken upon the line I-I in FIG.
  • FIG. 2 is a perspective view showing the position of a contact strip or like lamination prior to its being mounted in its contactor appliance, its position being inclined outwards with respect to its resilient support or like holding or carrying member;
  • FIG. 3 is a perspective view also showing after having been mounted an operative position of a strip or like lamination providing connection between two plugs, the contact pressure being provided by the stress ofthe resilient supporting member;
  • FIG. 4 is a perspective view showing the position of the same contact strip of lamination when the plugs are offset or shifted with respect to each other for instance in their distance and orientation relative to the general axis or centre line;
  • FIG. 5 is a cross-section of the switch taken upon the plaen VV in FIG. I.
  • the switch consists of a body 1 made from insulating material.
  • the bore of this body is formed with a helical ramp or like groove 2 the outline of which is shown in dotted lines at the bottom portion of FIG. 1.
  • a driving member 4 is positioned inside of this bore. It is rotatable by an operating rod or shaft 5 formed with a flattened or half flat drive portion 6; a feather or snug spigot 3, provided on said drive member, is movable inside of the groove 2 whereby any rotary motions are converted into combined rotary and translator or linear motions.
  • the axial travel is transmitted to the element 16 which is so to speak capping the inner end of drive member 4.
  • the element 16 cannot rotate as it is provided with a feather or like snug spigot 8 which is slidable within a groove 7 extending in parallel relation to the axis of rotation.
  • a circlip or like snap-keeper ring or retaining ring 10 prevents the drive member 4 from leaving the element 16 in the axial direction.
  • the rotary displacement of the shaft 5 results therefore in a movement in either direction in parallel relation to the axis of the element 16.
  • a central spring 17 may be used as an antibacklash adjusting device for taking up the slack, clearance or wear.
  • the element 16 accommodates an essential part which is a resilient insulating member 11 wherein are set contact strips or like laminations 12 which have the shape shown in FIGS. 2, 3 and 4 and which are clamped, seated or force-fitted within this elastic part.
  • FIG. 1 has been shown in dashed lines the end position which may assume the strips 12 which are bent substantially or nearly at right angles at their ends and which in their contact position are frictionally engaging plugs 13, 13', made of electrically conducting material.
  • the cross-sectional view from above 5 shows an examplary distribution of the strips 12 about the axis of the switch to thereby provide several contacts between the plugs 13, 13, etc.
  • the elastic part 11 is firmly held when being mounted within the cup 16 and accordingly it may be manufactured together with this shell member 16 at the v same time into an assembly.
  • the different rotary positions may correspond to positions differing in height since the plugs are not compulsorily made according to a configuration in parallel relation to the axis and since a same strip 12 may make contact between plugs located in different azimuthul positions.
  • the invention is by no means limited to the form of embodiment described and illustrated, which has been given by way of example only. In particular, it comprises all the means constituing technical equivalents to the means described as well as their combinations, should the latter be carried out according to the gist of the invention.
  • An electrical multipolar switch having several rotary angular positions for providing the required connections in an electrical equipment, including a stator provided with stationary plugs angularly distributed about a switch axis and a base axially movable in said stator, made from insulating material and strips set into said base without any connection between each other inside of said base. said strips being engageable with said stationary plugs, wherein the improvement comprises a rotor provided with means engaging with means provided in the stator for imparting to said rotor a helical movement upon rotation thereof and in that said base is axially aligned with and carried by said rotor and mounted non-rotatably in said stator, whereby the rotary motion of said rotor is converted in a translatory motion of said base and said contact strips.
  • a switch according to claim 1 wherein said stator is provided with an axial bore formed with an helical groove and with a longitudinal groove extending in parallel relation to the axis of rotation of the switch, said rotor rotatably mounted in said bore of said stator and provided with a radially outward projecting feather engaging said helical groove, said rotor carrying a nonrotatable cup-like member formed with a radially outward projecting spigot slidably engaging said longitudinal groove of said stator, whereby the rotary motion of said rotor is converted into a translatory motion of said cup-like member and said base is held firmly within said cup-like member.
  • a switch according to claim 2 wherein said rotor carries a resilient base member into which said movable strips are set and said movable strips are provided with T-shaped bent tips each having two outwardly pro jecting contact areas arranged to provide an electrical contact between said stationary plugs when contacting same.
  • a switch according to claim 3 comprising cleaning means for the contacting areas where electrical current is flowing therethrough, whereby the combined driving of said rotor according to a rotory and a translatory motion results in a linear displacement of said contact strips and successive frictional rubbing engagment thereof with said stationary plugs to achieve the cleaning of said areas.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Contacts (AREA)
  • Slide Switches (AREA)
US407387A 1972-10-20 1973-10-17 Electric multipolar rotatable switch with helical rotor drive Expired - Lifetime US3867601A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7237253A FR2204030B1 (fr) 1972-10-20 1972-10-20

Publications (1)

Publication Number Publication Date
US3867601A true US3867601A (en) 1975-02-18

Family

ID=9105955

Family Applications (1)

Application Number Title Priority Date Filing Date
US407387A Expired - Lifetime US3867601A (en) 1972-10-20 1973-10-17 Electric multipolar rotatable switch with helical rotor drive

Country Status (8)

Country Link
US (1) US3867601A (fr)
JP (1) JPS5436745B2 (fr)
AR (1) AR196376A1 (fr)
BR (1) BR7308165D0 (fr)
ES (1) ES419968A1 (fr)
FR (1) FR2204030B1 (fr)
GB (1) GB1444777A (fr)
IT (1) IT998797B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4145586A (en) * 1974-11-25 1979-03-20 Swann David A Electric switches
US4210789A (en) * 1976-10-20 1980-07-01 Hitachi, Ltd. Impact detecting switch
EP1146284A1 (fr) * 2000-04-10 2001-10-17 Belux AG Lampadaire
KR100404925B1 (ko) * 2000-12-23 2003-11-07 이성두 회전 스위치 플러그
WO2004054046A1 (fr) * 2002-12-09 2004-06-24 Sung-Doo Lee Adaptateur de fiche d'alimentation
WO2006027625A1 (fr) * 2004-09-10 2006-03-16 Absl Power Solutions Ltd Interrupteur de securite

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4450323A (en) * 1981-11-24 1984-05-22 Hitachi Koki Company, Limited Reversible switch

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246101A (en) * 1963-06-12 1966-04-12 Dante A Caputo Longitudinally reciprocatable, slidable action, multi-contact relay
US3488458A (en) * 1967-01-09 1970-01-06 Bell Telephone Labor Inc Miniature slide-type telephone switchhook

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246101A (en) * 1963-06-12 1966-04-12 Dante A Caputo Longitudinally reciprocatable, slidable action, multi-contact relay
US3488458A (en) * 1967-01-09 1970-01-06 Bell Telephone Labor Inc Miniature slide-type telephone switchhook

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4145586A (en) * 1974-11-25 1979-03-20 Swann David A Electric switches
US4210789A (en) * 1976-10-20 1980-07-01 Hitachi, Ltd. Impact detecting switch
EP1146284A1 (fr) * 2000-04-10 2001-10-17 Belux AG Lampadaire
CH694822A5 (de) * 2000-04-10 2005-07-29 Belux Ag Stehleuchte.
KR100404925B1 (ko) * 2000-12-23 2003-11-07 이성두 회전 스위치 플러그
WO2004054046A1 (fr) * 2002-12-09 2004-06-24 Sung-Doo Lee Adaptateur de fiche d'alimentation
WO2006027625A1 (fr) * 2004-09-10 2006-03-16 Absl Power Solutions Ltd Interrupteur de securite
US20070246331A1 (en) * 2004-09-10 2007-10-25 Andrea Bennetti Safety Switch

Also Published As

Publication number Publication date
JPS5436745B2 (fr) 1979-11-10
JPS4993875A (fr) 1974-09-06
FR2204030B1 (fr) 1977-07-29
FR2204030A1 (fr) 1974-05-17
GB1444777A (fr) 1976-08-04
ES419968A1 (es) 1976-04-01
DE2348321B2 (de) 1976-10-07
DE2348321A1 (de) 1974-05-02
BR7308165D0 (pt) 1974-07-11
IT998797B (it) 1976-02-20
AR196376A1 (es) 1973-12-18

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