US1884341A - Electric switch - Google Patents

Electric switch Download PDF

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Publication number
US1884341A
US1884341A US516406A US51640631A US1884341A US 1884341 A US1884341 A US 1884341A US 516406 A US516406 A US 516406A US 51640631 A US51640631 A US 51640631A US 1884341 A US1884341 A US 1884341A
Authority
US
United States
Prior art keywords
switch
key
plate
pin
sleeve
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
US516406A
Other languages
English (en)
Inventor
Steinhart Hermann
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.)
Robert Bosch AG
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Application granted granted Critical
Publication of US1884341A publication Critical patent/US1884341A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/003—Marking, e.g. coloration by addition of pigments
    • 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
    • H01H27/08—Key inserted and then turned to effect operation of the switch wherein the key cannot be removed until the switch is returned to its original position

Definitions

  • the present invention relates to electric switches and in particular is applicable to switches used in the electric systems of motor vehicles.
  • the switch key is automatically coupled to a rotatable switch member when it is rotated while in the pressed down position, it being possible to make and break at least one circuit by the rotation of this switch member.
  • Figure 2 is a cross section on the line AB of Figure 1..
  • Figure 3 is a detail view of one of the discs receiving the key.
  • VFi ure4 is a detail view showing 'another disc or receiving the key.
  • FIG. 5 is a detail view of the key and Figure 6 is a circuit diagram for one switch disc.
  • ' i -1 /Three lugs or flanges 2 of a pot-shaped member 3 which is provided with a rotatable' sleeve 4 foi" a key 5, arerivettcdto a base plate 1 made of insulating material.
  • the top of the sleeve 4 is covered bytwo discs 6 and 7 bordered into the sleeve, ⁇ the disc 6 having slots 8 formed therein whilst the disc 7 has pressing down the key against an axially slots 8 and 9 for the reception of the wardslO of the key 5.
  • the bottom of the sleeve 4 is .connected to a circular switch plate 11.
  • An annular switch plate 12 which is connected to a hollow knob 13 adapted to be used 55 lower sides with suitable contact segments 23.
  • the two switch plates 11 and 12 are provided on their cooperating adjacent edges with notches 18, 19 respectively, vthe number of notches correspending to the number of switchpositions. In every switch position of the two switch platesll, 12 one notch 18 and one notch 19 lie opposite each other, so that the pin 1U can be accommodated between them.
  • the pin 16 thereby engages in two mutually opposite notches 18 and 19 of the two switch 95 plates 11 and 12, and these accordingl are secured against rotation as the pin 16 orms a locking connection between the plates.
  • key-ward 10 passes through the two slots 8, disposed in ljuxtaposition in the two d1scs 6 and 7. y
  • the locking pin 16 is orced out of the ooves 18 and 19, whereby the two switc plates 11, 12 are unlocked, so that they ca-n be rotated into any desired switch position.
  • the key 5 If the key 5 is rotated to some degree in its pressed down position it is maintained in this position by the lower face of the disc 7 against which the key-ward 10 abuts.
  • the key 5 is preferably rotatedY until the key-ward 10 reaches and is inserted in the slots 9 of the disc 7, these slots being covered by the disc 6.
  • the key 5 thus becomes coupled with the sleeve 4 and with the switch plate 11 con ⁇ nected to this. If the key is now rotated further for 90, the switch plate 11 will also be displaced for 90 so that a certain circuit or circuits for example the ignition and horn circuit may be switched in.
  • the key 5 can be withdrawn and the switch thereby
  • the key 5 is inserted and pressed against' the bolt 14 so that the key-ward 10 can come within the slots9 in the disc 7 ⁇ and the key 5 is then turned back until it can again come out of the sleeve through the slots' 8 of the discs 6 and 7 the slots lying one above the other.
  • the ignition circuit in addition to the horn circuit is ⁇ interrupted.
  • the switch plate 12 serves for switching the lighting on and off, and has three positions as known: (1) off (2) parking light and.(3)
  • headlights It can be locked in any of these-1 three switch positions by withdrawing the key 5.
  • the lighting switch canv be changed in any suitable manner; this also applies to the general construction of the whole switch. If the switch is only towork the h ornI circuit and not the ignition circuit as described, the contact springs 22 provided on the switch plate 11 forthe ignition circuit are omitted. i
  • An electric switch comprising a housing, a pair of co-aXial annular relatively displaceable elements, contacts carried by-said elements, a fixed plate, contacts on said ixed plate engaged byc-ontacts on said annular elements to establish a number of independent electric circuits, a pin carried by said fixed plate which normally prevents said annular elements from relative displacement and a ke which, on insertion within said housing A isplaces said pin from locking en# gagement with the annular elements, one of which is rotated relatively to the other on rotation of the key.
  • An electric switch comprising a housing, a base plate at one end of said housing, contacts on said base plate, a sleeve within said housing, an annular plate connected to saidl sleeve and having a number of slots on its outer periphery, a second annular plate coaxial with the first plate and slotted on its inner periphery, contacts on said second-an nular plate, a pin carried by said fixed plate and engaging in the slots on said annular plates to prevent relative rotation between said plates and between either of said plates and said fixed plate and a key adapted for insertion through said eleeve to :displace said pin out of its locking position, rotation of said key after displacement of said pin permitting relative displacement of said annular plates and relative displacement of either of said plates with said fixed plate.
  • An electric switch as claimed in claim 3, comprising wards on said key and a pair of centrally slotted discs at the inlet e'nd of said sleeve forl the passage of the key ward therethrough, the lower of said discs when the wards are in position in the slots therein connecting said key with said sleeve to rotate one of said relatively annular displaceable plates.
  • An electric switch as claimed in claim 3 comprising a bolt situated in said sleeve andl a radially disposed arm at one end of said b ⁇ olt for connection to said pin, the insertion of said key and the contact thereby with the other ⁇ and of the bolt longitudinally displacing said 'bolt to release said pin in lockin engagement between said relatively disp aceable annular plates.
  • An electric switch as claimed in claim 3, comprising a bolt within said sleeve, spring for each switch position, means for operating said switch plates, and locking means operated by one of' said operating means and adapted to engage in said grooves when they are in register.
  • An electric switch having two concentric switch plates each provided at its edges with ooves, two of which are opposite each other or each switch position, a key for l operating one of said switch plates, a handle for operating the other switch plate, and a' pin axially movable by the key and engaging 1n op osing grooves.
  • electric switch including a key, a switch handle provided with a recess in the axis thereof, and a rotatable switch member,
  • said switch adapted to be locked by the withdrawal of said key from said recess and unlocked when said key is pressed inwardly of said recess, said key being coupled with said rotatable switch member when pressed inwardly whereby rotation of said key rotates said rotatable switch member.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Lock And Its Accessories (AREA)
  • Push-Button Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
US516406A 1930-02-26 1931-02-17 Electric switch Expired - Lifetime US1884341A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE372447X 1930-02-26

Publications (1)

Publication Number Publication Date
US1884341A true US1884341A (en) 1932-10-25

Family

ID=6332240

Family Applications (1)

Application Number Title Priority Date Filing Date
US516406A Expired - Lifetime US1884341A (en) 1930-02-26 1931-02-17 Electric switch

Country Status (5)

Country Link
US (1) US1884341A (en(2012))
BE (1) BE376456A (en(2012))
FR (1) FR710289A (en(2012))
GB (1) GB372447A (en(2012))
NL (1) NL31541C (en(2012))

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212938A (en) * 1962-10-17 1965-10-19 Black & Decker Mfg Co Switch for cordless electrical device
US3321589A (en) * 1963-09-19 1967-05-23 Mackworth G Rees Safety lock switch

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE939010C (de) * 1949-04-21 1956-02-09 Theodor Kaestner Fa Elektrischer Schalter fuer Kraftfahrzeuge
EP0164509B1 (en) * 1984-06-11 1988-11-30 International Business Machines Corporation Business machine locking device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212938A (en) * 1962-10-17 1965-10-19 Black & Decker Mfg Co Switch for cordless electrical device
US3321589A (en) * 1963-09-19 1967-05-23 Mackworth G Rees Safety lock switch

Also Published As

Publication number Publication date
FR710289A (fr) 1931-08-20
BE376456A (en(2012))
NL31541C (en(2012))
GB372447A (en) 1932-05-12

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