US2773950A - Electric switch - Google Patents

Electric switch Download PDF

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Publication number
US2773950A
US2773950A US444613A US44461354A US2773950A US 2773950 A US2773950 A US 2773950A US 444613 A US444613 A US 444613A US 44461354 A US44461354 A US 44461354A US 2773950 A US2773950 A US 2773950A
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US
United States
Prior art keywords
switch
roller
bridge
cam
guided
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
US444613A
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English (en)
Inventor
Bauer Franz
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US2773950A publication Critical patent/US2773950A/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
    • 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
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/62—Contacts actuated by radial cams
    • H01H19/626—Contacts actuated by radial cams actuating bridging contacts

Definitions

  • the roller spindle is operatively connected to the switch bridge more or less only in the switching direction, that is to say in such manner that practically only that component is transmitted, of the roller-actuating force, which is effective in the switching direction.
  • This arrangement results in the switch bridge not being subjected to lateral forces, provided that those small frictional forces which are due to the rotation of the roller spindle in the movable bridge part, are taken up by a guide member connected to the switch bridge and known as the thrust rod.
  • the said friction forces are very small, this point being of considerable importance as bearing upon the operational life of the switch.
  • the switch bridge can be completely relieved of lateral stresses, even when no laterally guided impulsing rod is present, of the roller spindle guided in parallel slots in the switch body and the bridge, likewise guided in parallel slots in the switch casing, are in articulated connection through the agency of an intermediate member.
  • FIG. 1 A constructional example of the invention is illustrated in the accompanying diagrammatic drawings, Fig. 1 being an end elevation and Fig. 2 a corresponding side view.
  • Fig. 2 designates the switching body (omitted from Fig. 1) which may have, for example, the form described in detail in patent specification of U. S. Patent No. 2,684,412.
  • the switch spindle 3 carries a switching cam 4 co-operating with one or more pressure rollers 5.
  • the roller 5 is carried on a shaft 9 and may be formed in one piece therewith.
  • the roller shaft 9 projects laterally beyond the arms of the fork 8, the said arms resting upon the roller spindle 9, and is guided in slots fashioned in any suitable manner in the switch casing.
  • the forked part 8 has an extension 40 which may also be forked and in which a pivot pin 41 is mounted.
  • the latter extends through forked extensions 42 of the switch bridge 15 (which co-operates with the contacts 25) and projects on both sides into the guide slots 20 in the casing 1.
  • the connecting member 8 is guided upon the roller shaft 9 and upon the pivot pin 41 by means of forked slots.
  • the intermediate member can surround the roller shaft 9 and (or) the pivot pin 41 in the manner of a lug and to be mounted thereon.
  • the bearing bridge can be fitted in forked fashion to the pivot pin 41 instead of being secured thereto by means of bearing lugs.
  • a positive mechanical means operatively interconnecting the control cam and each contact bridge, said means including a roller in contact with the cam; a transverse shaft for mounting the roller, the shaft being guided in parallel guide means in the casing, the guide means being arranged to guide the shaft and roller in a straight path between the cam and the contact bridge and preventing any transverse movement thereof; a link having one end pivotally mounted on the shaft; and a transverse pin arranged to control the movement of the bridge, the other end of said link being pivotally mounted on the pin and the pin being guided in parallel guide means in the casing, the latter guide means being arranged to guide the pin in a straight path between the cam and the contact bridge, and lateral actuating forces exerted upon the interconnecting means being absorbed by the guide means in the

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Endoscopes (AREA)
US444613A 1953-08-05 1954-07-20 Electric switch Expired - Lifetime US2773950A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT323741X 1953-08-05

Publications (1)

Publication Number Publication Date
US2773950A true US2773950A (en) 1956-12-11

Family

ID=3671623

Family Applications (1)

Application Number Title Priority Date Filing Date
US444613A Expired - Lifetime US2773950A (en) 1953-08-05 1954-07-20 Electric switch

Country Status (7)

Country Link
US (1) US2773950A (enrdf_load_stackoverflow)
BE (1) BE530645A (enrdf_load_stackoverflow)
CH (1) CH323741A (enrdf_load_stackoverflow)
DE (1) DE948708C (enrdf_load_stackoverflow)
FR (1) FR1117137A (enrdf_load_stackoverflow)
GB (1) GB756804A (enrdf_load_stackoverflow)
NL (1) NL189383B (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059071A (en) * 1959-06-05 1962-10-16 Nat Acme Co Multi-position switch
US3227828A (en) * 1961-10-16 1966-01-04 Maytag Co Pivotally operable circuit interrupter
US3251956A (en) * 1963-04-09 1966-05-17 Gemco Electric Co Electric switch
US3575579A (en) * 1969-12-10 1971-04-20 Patrick J Mcgannon Improved cam follower roller structure for distributor contact breaker arm
US4401863A (en) * 1980-09-06 1983-08-30 Starkstrom Gummersbach Gmbh Contact device for low voltage switch devices
US20220301791A1 (en) * 2019-09-05 2022-09-22 Eaton Intelligent Power Limited Semi-independent switch-disconnector

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1084811B (de) * 1958-10-01 1960-07-07 Continental Elektro Ind Ag Nockenschalter
DE3709664A1 (de) * 1987-03-24 1988-10-06 Bbc Brown Boveri & Cie Mehrstellungs-kommutierungstrenner fuer hoch- und mittelspannungs-schaltanlagen
DE19505737C1 (de) * 1995-02-20 1996-05-30 Bosch Siemens Hausgeraete Nockenschalter
DE202010000259U1 (de) 2010-02-26 2010-05-27 Federnfabrik Dietz Gmbh Bedienelement mit Stellrad oder Schiebeelement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1149990A (en) * 1913-07-16 1915-08-10 Fred Gerlach Coin-controlled lock.
US2286611A (en) * 1937-11-06 1942-06-16 Westinghouse Air Brake Co Circuit control means

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1149990A (en) * 1913-07-16 1915-08-10 Fred Gerlach Coin-controlled lock.
US2286611A (en) * 1937-11-06 1942-06-16 Westinghouse Air Brake Co Circuit control means

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059071A (en) * 1959-06-05 1962-10-16 Nat Acme Co Multi-position switch
US3227828A (en) * 1961-10-16 1966-01-04 Maytag Co Pivotally operable circuit interrupter
US3251956A (en) * 1963-04-09 1966-05-17 Gemco Electric Co Electric switch
US3575579A (en) * 1969-12-10 1971-04-20 Patrick J Mcgannon Improved cam follower roller structure for distributor contact breaker arm
US4401863A (en) * 1980-09-06 1983-08-30 Starkstrom Gummersbach Gmbh Contact device for low voltage switch devices
US20220301791A1 (en) * 2019-09-05 2022-09-22 Eaton Intelligent Power Limited Semi-independent switch-disconnector

Also Published As

Publication number Publication date
BE530645A (enrdf_load_stackoverflow)
DE948708C (de) 1956-09-06
NL189383B (nl)
FR1117137A (fr) 1956-05-17
GB756804A (en) 1956-09-12
CH323741A (de) 1957-08-15

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