US2571580A - Bearing device for relay armatures and the like - Google Patents

Bearing device for relay armatures and the like Download PDF

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Publication number
US2571580A
US2571580A US70073A US7007349A US2571580A US 2571580 A US2571580 A US 2571580A US 70073 A US70073 A US 70073A US 7007349 A US7007349 A US 7007349A US 2571580 A US2571580 A US 2571580A
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US
United States
Prior art keywords
armature
plate
bearing device
plane
relay
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
US70073A
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English (en)
Inventor
Jorgensen Anders Ossian
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of US2571580A publication Critical patent/US2571580A/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
    • H01H50/28—Parts movable due to bending of a blade spring or reed

Definitions

  • the present invention relates to a bearing device for armatures on electromagnetic relays and similar switching devices.
  • a bearing device for armatures on electromagnetic relays and similar switching devices.
  • certain requirements must be fulfilled. It should, among other things, be so manufactured that the magnetic permeability is as great as possible. Furthermore no sliding should arise when the armature is moving. Moreover, the armature should, when operated, always occupy identical external positions, because otherwise the magnetic circuit is changed from time to time. Finally the bearing must be cheap to manufacture.
  • Figs. 1, 2 and 3 show different details of a relay with the proposed armature bearing.
  • Fig. 4 illustrates these details assembled on a relay with the armature in its operated position and
  • Fig. 5 shows in exaggeration a detail of the armature bearing after the armature has moved into its released position.
  • Figs. 1 and 2 which consist of an armature 2! with a bearing plate 22 and a spring l8, are intended to be mounted on the back plane l2 of the core shown in Fig. 3, which in a manner known per se may be manufactured of sheet-iron.
  • This plane I2 is parallel to the axis of the winding space IS on the core.
  • 5 borders plane
  • the spacing of the planes is such that the spring l8 shown in Fig. 2 together with a rivet head for its fastening have clearance between them.
  • in the plate 22, have been fixed on the plane I 2. Furthermore there is a threaded hole I!
  • the spring l8, Fig. 2 is provided with two holes l9 to receive rivet studs 23 on the under surface of the plate 22 and with holes 20 to receive rivet studs 24 on the armature 2
  • the plate 22 consists of rather thin sheet iron with a lip 28 overhanging the end of the armature and formed in such a way that it reinforces the spring against shocks for accidental striking of the armature which might move it out of position.
  • the relay construction shown in Fig. 4 consists of a so-called fiat-type relay, in which the armature is mainly parallel with the core of the relay.
  • operates a contact group 44, by a change in the energization of winding 45, by means of the movement of its front part 29 with respect to the pole shoe l4 and by means of operating means 4
  • Fig. 5 intends to illustrate how the spring I8 is bent when the armature 2
  • the spring I8 is lying in the space between the plate 22 and the plane l5 it has room to bend in the prescribed manner.
  • the above-mentioned lip 28 receives shocks when the armature is exposed to accidental blows.
  • may also be provided with a protective shield extending in under the nearest edge of the plate 22. This shield may be fastened by means of the rivets 24 simultaneously with the spring l8.
  • a core having a winding-receiving portion and a Wider end section having a plane area substantially parallel to the axis of said portion, an armature :having a section extending alongside the said portion of the core and .a flat part adapted to rest throughout a large area on the core plane area adjacent the said portion when the armature is attracted, said part being of such lateral width as to overhang the sides of said plane area, a plate of magnetic material secured to and contacting a large portion of said plane area beyond the armature part, similarly overhanging the sides of said area and having an edge substantially engaging the rear edge of the :armature part throughout most of its Width, a :normally flat spring secured to the overhanging areas of said part and plate on the sides thereof :facing the core and an integral hook on said plate closel-y overhanging said armature part and withsaid substantially engaging edges :servsing to prevent such accidental displacement of the armature as might damage the spring.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
US70073A 1948-01-28 1949-01-10 Bearing device for relay armatures and the like Expired - Lifetime US2571580A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE656539X 1948-01-28

Publications (1)

Publication Number Publication Date
US2571580A true US2571580A (en) 1951-10-16

Family

ID=20314189

Family Applications (1)

Application Number Title Priority Date Filing Date
US70073A Expired - Lifetime US2571580A (en) 1948-01-28 1949-01-10 Bearing device for relay armatures and the like

Country Status (4)

Country Link
US (1) US2571580A (xx)
BE (1) BE486731A (xx)
GB (1) GB656539A (xx)
NL (2) NL74208C (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2896045A (en) * 1957-11-08 1959-07-21 American Nat Bank Relay with clamp-contact assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1442288A (en) * 1987-04-09 1988-10-13 Ped Limited Improvements in and relating to relays

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US923949A (en) * 1909-06-08 Western Electric Co Electromagnetic signal-controlling device.
US1274874A (en) * 1915-12-27 1918-08-06 Siemens Ag Electromagnetic relay.
FR751402A (fr) * 1932-05-26 1933-09-04 Mors Electricite Perfectionnements aux relais
US1946261A (en) * 1932-12-29 1934-02-06 Bell Telephone Labor Inc Electromagnetic switching device
US1991210A (en) * 1932-07-20 1935-02-12 Western Electric Co Electromagnetic device
US1994671A (en) * 1932-12-23 1935-03-19 Western Electric Co Electromagnetic switching device
US2294327A (en) * 1940-05-17 1942-08-25 Bell Telephone Labor Inc Electromagnetic relay
US2321834A (en) * 1940-09-28 1943-06-15 Comar Electric Co Relay
US2391222A (en) * 1944-06-22 1945-12-18 Bell Lab Inc Method of making electromagnetic devices
US2421642A (en) * 1944-06-15 1947-06-03 Guardian Electric Mfg Co Electromagnet relay construction
US2455690A (en) * 1945-09-24 1948-12-07 Allen Bradley Co Electromagnet with pivotally mounted armature

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US923949A (en) * 1909-06-08 Western Electric Co Electromagnetic signal-controlling device.
US1274874A (en) * 1915-12-27 1918-08-06 Siemens Ag Electromagnetic relay.
FR751402A (fr) * 1932-05-26 1933-09-04 Mors Electricite Perfectionnements aux relais
US1991210A (en) * 1932-07-20 1935-02-12 Western Electric Co Electromagnetic device
US1994671A (en) * 1932-12-23 1935-03-19 Western Electric Co Electromagnetic switching device
US1946261A (en) * 1932-12-29 1934-02-06 Bell Telephone Labor Inc Electromagnetic switching device
US2294327A (en) * 1940-05-17 1942-08-25 Bell Telephone Labor Inc Electromagnetic relay
US2321834A (en) * 1940-09-28 1943-06-15 Comar Electric Co Relay
US2421642A (en) * 1944-06-15 1947-06-03 Guardian Electric Mfg Co Electromagnet relay construction
US2391222A (en) * 1944-06-22 1945-12-18 Bell Lab Inc Method of making electromagnetic devices
US2455690A (en) * 1945-09-24 1948-12-07 Allen Bradley Co Electromagnet with pivotally mounted armature

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2896045A (en) * 1957-11-08 1959-07-21 American Nat Bank Relay with clamp-contact assembly

Also Published As

Publication number Publication date
NL144516B (nl)
BE486731A (xx)
GB656539A (en) 1951-08-22
NL74208C (xx)

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