US2861147A - Spring arrangement - Google Patents

Spring arrangement Download PDF

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Publication number
US2861147A
US2861147A US543194A US54319455A US2861147A US 2861147 A US2861147 A US 2861147A US 543194 A US543194 A US 543194A US 54319455 A US54319455 A US 54319455A US 2861147 A US2861147 A US 2861147A
Authority
US
United States
Prior art keywords
spring
contact
strip
contact spring
driving member
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
US543194A
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English (en)
Inventor
Couveld Johan Hinrich
Jong Hendrik Johannes De
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.)
US Philips Corp
North American Philips Co Inc
Original Assignee
US Philips Corp
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 US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US2861147A publication Critical patent/US2861147A/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
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/56—Contact spring sets
    • H01H50/58—Driving arrangements structurally associated therewith; Mounting of driving arrangements on armature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion

Definitions

  • the present invention relates to a spring arrangement. More particularly, the invention relates to a contact spring set, for example, a spring set of an electromagnetic relay, in which a movable contact spring is displaced by means of a driving member which moves at right angles to the plane of the spring and which acts upon the spring at a point situated between the fixed end of the spring and a contact member secured to the spring.
  • a contact spring set for example, a spring set of an electromagnetic relay, in which a movable contact spring is displaced by means of a driving member which moves at right angles to the plane of the spring and which acts upon the spring at a point situated between the fixed end of the spring and a contact member secured to the spring.
  • the movable contact spring is provided with a strip which extends in the direction of length of the spring and passes between the spring and the driving member and is secured to the spring only at a point, which seen from the fixed end of the spring, lies beyond the point of engagement of the driving member.
  • This strip absorbs the bending produced when the contact spring is moved, so that no local large bending moment is produced in the spring. In the final position of the contact spring, however, said spring alone supplies the restoring force.
  • the strip is preferably connected to the movable contact spring at the point of attachment of a contact member.
  • the attachment of the strip is simple and may be effected at the same time as the provision of the contact member.
  • Fig. 1 is a longitudinal cross-sectional view of an embodiment of the contact spring arrangement of the invention.
  • Fig. 2 is a cross-sectional view taken along the line IIII of the embodiment of Fig. 1.
  • a contact spring group comprising a change-over contact is secured with the interposition of insulating members 3.
  • the spring group comprises a comparatively rigid contact spring 4 pro- 2,861,147 Patented Nov. is, 1958 vided at its end with a contact member 5, a movable contact spring 6 having a double contact member 7 provided at its end and a second comparatively rigid contact spring 8 having a contact member 9.
  • the lower part of the contact member 7 provided on the movable contact spring 6 due to its own spring action engages the contact member 5 of the lower spring 4.
  • the armature 2 has a ladder-shaped driving member 10 coupled to it which, on movement of the armature due to energization of the relay, is raised at right angles to the plane of the contact springs.
  • the driving member 10 is maintained in the upright position by means of a spring 14 which is passed through an aperture 13 and is secured to the yoke 1 together with the contact springs 4, 6 and 8.
  • a cross-bar 11 of said driving member moves the contact spring 6 to a position in which the upper part of the contact member 7 engages the contact member 9 of the upper contact spring, whereas the contact between the contact member 7 and the lower contact spring 4 is interrupted.
  • a flexible metal strip 12 which is connected to the strip 6 at the same point as the contact member 7 and which passes between this spring and the cross-bar 11 of the driving member 10.
  • the cross-bar 11 strikes the strip 12 and the spring 6 at a certain velocity so that the latter are subjected to a mechanical shock. Since the contact member 7 has a comparatively large mass, the spring 6 would be bent sharply without the provision of the strip 12. However, the bending of the spring 6 is obviated to a certain extent by the strip 12 so that no locally high concentration of the mechanical tension is produced in the contact spring 6. In the final position the strip 12 substantially does not influence the restoring force exerted upon the driving member 10, the resilience of only the contact spring 6 is deciding. In addition, the strip 12 provides the advantage due to friction with the spring 6 the tendency for the contact member 7 to rebound, when it is brought into contact with the upper spring, is reduced.
  • An electric contact arrangement comprising a plurality of contact springs, means mounting said contact springs in superposed relationship, at least one bendable contact spring firmly held in said means at one end thereof, a first electric contact secured to the free end of said bendable contact spring, a second electric contact mounted on an adjacent contact spring, said first electrict contact engaging said second electric contact upon movement of said bendable contact spring, a flexible strip secured to said bendable contact spring and extending from the point of fixation freely along said bendable contact spring in the direction of the fixed end of said bendable contact spring, said flexible strip being secured in a manner whereby a free end thereof leans towards said adjacent contact spring, and operating means for engaging said bendable contact spring and movable in a direction substantially perpendicular to the plane of said contact spring, said operating means being provided with an abutment which engages said strip on the side remote from said benable contact spring, the 19O9'783 point of engagement of said abutment with said strip 5 2547062 being between said point of fixation of said strip to said 21638

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Tumbler Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Electromagnets (AREA)
US543194A 1954-11-03 1955-10-27 Spring arrangement Expired - Lifetime US2861147A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL334817X 1954-11-03

Publications (1)

Publication Number Publication Date
US2861147A true US2861147A (en) 1958-11-18

Family

ID=19784506

Family Applications (1)

Application Number Title Priority Date Filing Date
US543194A Expired - Lifetime US2861147A (en) 1954-11-03 1955-10-27 Spring arrangement

Country Status (7)

Country Link
US (1) US2861147A (enrdf_load_stackoverflow)
BE (1) BE542486A (enrdf_load_stackoverflow)
CH (1) CH334817A (enrdf_load_stackoverflow)
DE (1) DE958138C (enrdf_load_stackoverflow)
FR (1) FR1143115A (enrdf_load_stackoverflow)
GB (1) GB787701A (enrdf_load_stackoverflow)
NL (1) NL89612C (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3102934A (en) * 1959-10-09 1963-09-03 Ass Elect Ind Electromagnetic relays
US3270301A (en) * 1963-06-13 1966-08-30 Sigma Instruments Inc Plug-in type miniature relay with transparent cover
US3305804A (en) * 1965-07-09 1967-02-21 Gen Electric Magnetic contactor with movable electromagnet
US4772809A (en) * 1983-11-28 1988-09-20 Omron Tateisi Electronics Co. Switching circuit and a relay device employed to prevent arcing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1185286B (de) * 1962-04-06 1965-01-14 Magnetschultz Spezialfabrik Fu Elektromagnetisch betaetigtes Relais

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1909783A (en) * 1931-10-14 1933-05-16 Union Switch & Signal Co Electrical switch
FR892742A (fr) * 1942-03-31 1944-05-17 Gema Ges Fu R Elektroakustisch Relais à languette mobile et en particulier élastique
US2547062A (en) * 1951-04-03 Electromagnetic belay
US2638514A (en) * 1948-09-25 1953-05-12 Westinghouse Air Brake Co Electric circuit controller
GB730125A (en) * 1953-05-28 1955-05-18 Sten Daniel Vigren Improvements in or relating to electric switching devices having spring contact members

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2547062A (en) * 1951-04-03 Electromagnetic belay
US1909783A (en) * 1931-10-14 1933-05-16 Union Switch & Signal Co Electrical switch
FR892742A (fr) * 1942-03-31 1944-05-17 Gema Ges Fu R Elektroakustisch Relais à languette mobile et en particulier élastique
US2638514A (en) * 1948-09-25 1953-05-12 Westinghouse Air Brake Co Electric circuit controller
GB730125A (en) * 1953-05-28 1955-05-18 Sten Daniel Vigren Improvements in or relating to electric switching devices having spring contact members

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3102934A (en) * 1959-10-09 1963-09-03 Ass Elect Ind Electromagnetic relays
US3270301A (en) * 1963-06-13 1966-08-30 Sigma Instruments Inc Plug-in type miniature relay with transparent cover
US3305804A (en) * 1965-07-09 1967-02-21 Gen Electric Magnetic contactor with movable electromagnet
US4772809A (en) * 1983-11-28 1988-09-20 Omron Tateisi Electronics Co. Switching circuit and a relay device employed to prevent arcing

Also Published As

Publication number Publication date
BE542486A (enrdf_load_stackoverflow)
FR1143115A (fr) 1957-09-26
NL89612C (enrdf_load_stackoverflow)
GB787701A (en) 1957-12-11
CH334817A (de) 1958-12-15
DE958138C (de) 1957-02-14

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