US2456036A - Relay yoke - Google Patents

Relay yoke Download PDF

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Publication number
US2456036A
US2456036A US630422A US63042245A US2456036A US 2456036 A US2456036 A US 2456036A US 630422 A US630422 A US 630422A US 63042245 A US63042245 A US 63042245A US 2456036 A US2456036 A US 2456036A
Authority
US
United States
Prior art keywords
armature
ears
yoke
relay
heel piece
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
US630422A
Other languages
English (en)
Inventor
Fredric E Wood
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.)
Automatic Electric Laboratories Inc
Original Assignee
Automatic Electric Laboratories Inc
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
Priority to BE469127D priority Critical patent/BE469127A/xx
Application filed by Automatic Electric Laboratories Inc filed Critical Automatic Electric Laboratories Inc
Priority to US630422A priority patent/US2456036A/en
Priority to GB34793/45A priority patent/GB618732A/en
Application granted granted Critical
Publication of US2456036A publication Critical patent/US2456036A/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
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/24—Parts rotatable or rockable outside coil

Definitions

  • the present invention relates in general to switching devices and, more particularly, to an improved relay yoke, or armature clamping memher for pivotally securing the armature to the end of the relay heel piece included in the relay magnetic structure.
  • Fig. 1 is a top plan view of a relay using the improved relay yoke
  • Fig. 2 is a side view of the relay shown in Fig. 1;
  • Fig. 3 is an enlarged longitudinal sectional view taken along the center line of Fig. 1 to more clearly show the details of the assembly;
  • Fig. 4 is an enlarged plan view of the improved relay yoke
  • Fig. 5 is a side view of the yoke shown in Fig. 4.
  • the electromagnetic relay shown therein is substantially similar to the relay shown in the Wood Patent 2,272,496, issued Feb. 10, 1942, except for an improved contact spring assembly and the improved relay yoke of the present invention.
  • This relay comprises the usual magnetic structure including the relay core 24, the L-shaped heel piece 5 and the L- shaped armature IS.
  • the improved contact spring assembly 26 is being shown and fully described in a copending application S. N. 630,421 filed November 23, 1945.
  • the contact spring assembly is secured to the heel piece 6 by means of the two screws shown.
  • the relay core 24 is secured to the heel piece 6 by means of screw 2
  • the coil winding 22 wound around core 24 provides the means by which the armature I3 is actuated.
  • Armature l3 has a bearing pivot pin l l securely fastened to the armature l3 in the usual manner.
  • a bronze plate 'I is first placed on the heel piece 6, the pivot pin H is placed in the bearings ll! of ears H of the yoke and the yoke 8 is placed on the plate I after which the washer 9 and screw l0 secure the assembly 2 to heel piece 6 by screwing screw l0 into a threaded hole in heel piece 6.
  • the relay yoke 8 has a slotted mounting hole 28 near its center to allow shifting of the yoke so that a proper air line, such as I2, is provided between the armature I3 and the end of heel piece 6.
  • the improved yoke 8 is made of'non-magnetic material and comprises two ears it having hearing surfaces [8 in which the armature pivot pin ll rotates and a reinforcing section l5 extending between the ears H.
  • the inner surface of the reinforcing section l5, as will be noted, is swaged in offset relation to the bearing surfaces IE to thereby have a small clearance between the armature pivot pin H and the reinforcing section
  • this relay yoke is somewhat similar to the yoke 2i shown in the Wood Patent 2,272,- 496; previously mentioned, it has been found in actual practice that the yoke 3 of the present invention is far superior.
  • the cars 22 and 23 of yoke 28 of the Wood patent are easily bent out of allgnment if care is not taken when making adjustments to the armature or armature arm.
  • the ears 22 and 23 may be bent out of alignment causing a bind between the pivot pin and the bearings in the ears.
  • the reinforcing section IS in the prevent invention stifiens the ears l4 so that they are not easily bent out of alignment while the cut-away portion between the ears [4 permit visual observation, during assembly, of the air line It between the armature I3 and heel piece 6.
  • the reinforcing section l5 has been swaged in offset relation to the bearing surfaces l8 so that if the pivot pin H should be slightly bent near its middle during its assembly to the armature l3, the bent pivot pin would not strike the inner surface of reinforcing section l5. This clearance is indicated at H5 in Fig. 3.
  • a third and final swaging operation using a larger smooth polished pin of the desired size, now swages the bearing surfaces 58 to the proper size and also compresses the ears somewhat so as to produce hardened smooth surface bearings which prolong the life of such a yoke.
  • an electromagnetic switching device a core, a heel piece secured to said core, an armature having a pivot pin, means for rotatably securing said armature to said heel piece, said means including a relay yoke having a pair of semirounded ears at one extremity of said yoke, inner semi-rounded bearing surfaces in said ears for pivotally securing said pivot pin and said armav ture to said heel piece, a reinforcing section extending longitudinally between said ears to stiffen said ears and keep said bearing surfaces in alignment, said reinforcing section being out of alignment from said bearing surfaces of said ears to provide clearance between said section and the armature pivot pin, and said reinforcing section extending laterally only part way between said ears to provide an opening therebetween for visually observing the air line between said heel piece and said armature.
  • relay yoke for rotatably securing said armature and pivot pin to said heel piece; said relay yoke having a pair of semi-rounded ears at one extremity thereof, inner semi-rounded and hardened bearing surfaces in said ears pivotally securing said pivotv pin and armature to said heel piece, said semi-rounded ears extending from the main body portion of said yoke in a semirounded continuation of said yoke, the axis of said semi-rounded ears being in a plane parallel to the plane of the main body portion of said yoke, a reinforcing section extending longitudinally between said ears to reinforce said ears and maintain said bearing surfaces in alignment, and said reinforcing section being parallel to a portion of said semi-rounded surfaces of said ears and out of alignment from said bearing surfaces to provided a clearance between said section and said armature pin.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Dc Machiner (AREA)
US630422A 1945-11-23 1945-11-23 Relay yoke Expired - Lifetime US2456036A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE469127D BE469127A (fr) 1945-11-23
US630422A US2456036A (en) 1945-11-23 1945-11-23 Relay yoke
GB34793/45A GB618732A (en) 1945-11-23 1946-11-23 Improvements in or relating to electromagnetic relays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US630422A US2456036A (en) 1945-11-23 1945-11-23 Relay yoke

Publications (1)

Publication Number Publication Date
US2456036A true US2456036A (en) 1948-12-14

Family

ID=24527109

Family Applications (1)

Application Number Title Priority Date Filing Date
US630422A Expired - Lifetime US2456036A (en) 1945-11-23 1945-11-23 Relay yoke

Country Status (3)

Country Link
US (1) US2456036A (fr)
BE (1) BE469127A (fr)
GB (1) GB618732A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662135A (en) * 1948-07-28 1953-12-08 Autocall Company Plug-in relay
US2847621A (en) * 1953-10-01 1958-08-12 Pollak Corp Joseph Relay switches
EP0292447A2 (fr) * 1987-05-22 1988-11-23 F.E.M.E. Fabbrica Equipaggiamenti Meccanico Elettrici S.R.L. Circuit magnétique pour relais de sécurité à longue vie et à haute fiabilité

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1651684A (en) * 1920-05-06 1927-12-06 Automatic Electric Inc Electromagnetic relay
GB448948A (en) * 1935-01-18 1936-06-18 Norman Hall Improvements in or relating to electro-magnets for use in organs

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1651684A (en) * 1920-05-06 1927-12-06 Automatic Electric Inc Electromagnetic relay
GB448948A (en) * 1935-01-18 1936-06-18 Norman Hall Improvements in or relating to electro-magnets for use in organs

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662135A (en) * 1948-07-28 1953-12-08 Autocall Company Plug-in relay
US2847621A (en) * 1953-10-01 1958-08-12 Pollak Corp Joseph Relay switches
EP0292447A2 (fr) * 1987-05-22 1988-11-23 F.E.M.E. Fabbrica Equipaggiamenti Meccanico Elettrici S.R.L. Circuit magnétique pour relais de sécurité à longue vie et à haute fiabilité
EP0292447A3 (fr) * 1987-05-22 1990-08-16 F.E.M.E. Fabbrica Equipaggiamenti Meccanico Elettrici S.R.L. Circuit magnétique pour relais de sécurité à longue vie et à haute fiabilité

Also Published As

Publication number Publication date
BE469127A (fr)
GB618732A (en) 1949-02-25

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