US3112377A - Bi-directional step-by-step relay - Google Patents

Bi-directional step-by-step relay Download PDF

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Publication number
US3112377A
US3112377A US695959A US69595957A US3112377A US 3112377 A US3112377 A US 3112377A US 695959 A US695959 A US 695959A US 69595957 A US69595957 A US 69595957A US 3112377 A US3112377 A US 3112377A
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US
United States
Prior art keywords
contact
grooves
holder
carrier
fixed
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
US695959A
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English (en)
Inventor
Andela Hessel
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 US3112377A publication Critical patent/US3112377A/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
    • H01H19/56—Angularly-movable actuating part carrying contacts, e.g. drum switch
    • H01H19/58—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch

Definitions

  • This invention relates to switches comprising one or more fixed contact members and one or more co-operating mobile contact members, both the fixed and mobile contact members being secured in an insulated carrier body preferably of ceramic material and the mobile contact members being moved in the plane or in a plane parallel to the plane in which the body having the fixed contact members is situated.
  • switches are known, but have the disadvantage that the number of contact members which may be arranged on the carrier bodies is limited on account of the required width of the material of the contact members and the spacing between these contacts which is desirable in connection with the creep path.
  • said switch is characterized in that the fixed contact members are made of sheet material and arranged and secured at right angles to the carrier body, whereas the mobile contact members comprise resilient ends which, during the operation of the switch, make contact with contact areas on the fixed members, which contact areas are situated in planes parallel to the plane of the carrier body.
  • the space occupied by the fixed contact members of this invention is much smaller than in switches of known type, so that on the one hand, the carrier bodies may be of smaller size or, with the size of known carrier bodies, a
  • the quantity of material consumed for the contacts may also be less than in switches of known type.
  • the contact areas of the fixed cont-act members are preferably constituted by surfaces at right angles to the surface defining the thickness of the sheet material.
  • the section of the sheet material thus constitutes the contact surface, thus avoiding the necessity of forming separate contact areas as hitherto employed.
  • the fixed contact members may have the form of a hammer, the insulated carrier body being provided with radial grooves accommodating the hammer heads, which grooves have apertures in which the stems or handles of the hammers are located, the contact member being secured by deformation and more particularly bending the handle portion projecting from the body at its lower side.
  • the mobile contact members may perform either a translation or a rotation with respect to the fixed contact members.
  • the mobile contact members each comprise two approximately identical circular parts, each having at least one projecting resilient tongue and also a contact ring, one rin gbeing provided tongue and also a contact ring, one ring being provided with a plurality of attachment tags evenly distributed over the circumference of the circle and radially projecting inwards, whereas the second ring has a number of corresponding locating tags.
  • the mobile holder body which is made of insulating material, is provided on one side, or each side, with radial grooves evenly distributed over its circumference, the width of these grooves being approximately equal to the width of the attachment tags and the locating tags and a plurality of these grooves each having an aperture, extending transversely through the holder body.
  • the attachment tags extend through these apertures in the rotatable holder body which has a central rectangular aperture.
  • the mobile contact members are easily and quickly fixed on the holder body without play, while furthermore the angular position of the resilient tongue with respect to the rectangular aperture, through which the shaft of the switch extends, may be chosen at will.
  • the grooves of the holder body are defined by axially projecting segments attached to or integral with the holder body which segments have a diameter smaller than that of the holder, so that the circular contact members, at their inner circumference, partly bear on the holder body.
  • the carrier body for the fixed contact members comprises a plurality of radial projections, the thickness of which, in the axial direction of the switch, is equal to the spacing between the contact rings provided on the upper and the lower side of the holder body and/or associated collar of the rotary contact member.
  • the carrier body for the fixed contact members has secured to it, on one side or each side, a metallic strip having a resilient projection, which strip is located within the portion of the contact rings situated outside the holder body for the mobile contact members. A reliable contact with the mobile cont-act members is thus always obtained in a simple manner.
  • FIG. 1 is a partly sectional elevation view of a rotary switch having three rows of double fixed contacts. A section view of the second row of fixed contacts being shown which is taken along the line I-I of FIG. 2 viewed in the direction of the arrows;
  • FIG. 2 is a plan view of the switch of FIG. 1 taken along the line II-II and also viewed in the direction of the arrow;
  • FIG. 3 is a sectional view taken along line IIIIII of FIG. 4-, on an enlarged scale, of the holder body for the mobile contacts;
  • FIG. 4 is a plan view of the carrier body for the mobile contacts with the contact rings provided.
  • FIG. is a plan view of a contact ring itself.
  • reference numeral 1 indicates a frame in which three carrier bodies 2 for fixed contacts 12 are arranged to regular intervals.
  • the frame 1 is secured to a front plate 3, through which extends a shaft 4 which comprises a collar 5 and is further led to the exterior.
  • a threaded sleeve 6 is connected to a protuberance 7 of the front plate 3 and the switch may be secured to a panel 9 by means of a nut S.
  • a stop for the shaft 4 is provided in the protuberance 7 in a manner not shown, so that the various positions of this shaft may be fixed.
  • the carrier body 2 for the fixed contact members has a plurality of grooves '10, regularly distributed over its circumference, each having an aperture 11 extending through the carrier body.
  • Contact members 12 are also arranged on the lower side of carrier body 2 and these contact members are staggered with respect to the contact members on the upper side.
  • the carrier body 2 also comprises four radial projections 2a which serve to centre the carrier body for the mobile contact and which will be referred to in detail hereinafter.
  • the carrier body 2 finally comprises two strips 16 which are connected together by means of a flanged sleeve 17 and which have contact areas 13.
  • Reference numeral 19 indicates a holder body for mobile contacts which is made of insulating material.
  • This holder body has a rectangular central aperture 20, through which extends a rectangular shaft 21, one end of which is supported by the frame 1 and the other end of which fits into a groove 22 of the shaft 4.
  • Each side of the holder body 19 has axially projecting segments 23 having a diameter smaller than that of the holder or supporting body 19 and defining grooves 24 which are regularly distributed over the surfaces of the holder body. These grooves 24 also have apertures 25.
  • Two contact rings 26 are secured to the holder body 19 at each side thereof. One of these contact rings has the shape shown in FIG.
  • a contact ring having short locating tags 27 is laid on the holder body 19, the segments 23 being located inside the inner circle of the contact ring 26 and the tags 27 being accommodated in the grooves 24.
  • a contact ring 26 having long attachment tags 28 is laid on top of the first contact ring, of which the long tags 28 bent beforehand are passed through the apertures and bent over at the other side.
  • the assembly thus comprises two contact rings 26 having contact tongues 29, which are identical. Two such rings are also arranged on the lower side of the holder 19.
  • the contact tongue 29 for these rings may be dispensed with. Since all grooves 24 have apertures 25, the upper assembly comprising the lower and upper rings 26 may have a different position with respect to the lower assembly. Alternatively the contact tongues 29 of each assembly may also be shifted with respect to one another.
  • the rings 26 have been placed in position, both on the upper side and the lower side of the carrier body 19, a certain space approximately equal to the thickness of holder '19 thus exists between the projecting edges of the two rings.
  • the four projections 2a of the carrier body 2 for the fixed contact members exactly fit into this space, so that these projections fully centre the carrier body 19 for the mobile contact members and keep it in position.
  • the resilient tags 18 of the collector contacts 16 also fit into the space between the rings 26. It is possible for the rings 26- to be provided with a plurality of contact tongues 29 and it is alternatively possible to provide wide contact tongues 29, by each of which two or more fixed contacts 12 areas are connected simultaneously.
  • the fixed contacts may alternatively be arranged in a row and the holder body for the mobile contacts may then perform a sliding movemen-t.
  • the described switch is built up from simple moulded pieces and its assembly requires only simple manipulations which may be performed by unskilled labour.
  • all rings 26 are punched with the same shape and the tags 23 are shortened and the contact tongues 29 are bent according to requirements.
  • the contact surface 14; on the hammer-like fixed contact 12 is small and has sharp edges, so that very good cleaning of the contacts upon rotation of the switch is possible, since the surface of the tongues 29 is cleaned by the scraping action of the sharp edge.
  • a switch according to the invention may have smaller dimensions for the same switching possibility than those of the conventional switches and may also be lighter in weight.
  • a switch having at least one fixed contact assembly and co-acting movable contact assembly, said fixed assembly comprising insulated carrier means, a plurality of radial grooves in said carrier means and a corresponding plurality of traverse apertures in said carrier means communicating with said grooves, a plurality of hammerlike shaped contacts of sheet material having a handle portion, said contacts recessed within at least some of said grooves defining a plane perpendicular to said carrier means and said handle portion projecting through the associated aperture; said movable contact assembly comprising holder means, a plurality of radial grooves in said holder means and a plurality of corresponding traverse apertures in said holder means communicating with said grooves, movable annular contact means extending beyond the outer boundary of said holder means and having at least a tongue portion at the outer periphery, a pluarlity of tag means at the inner periphery of said contact means, said tag means securing said annular contact means to said holder means in cooperation with said grooves and apertures in
  • a switch as claimed in claim 1 further cornpnising a metallic strip provided with a resilient contact area which engages said annular contact means of the movable contact member.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Tumbler Switches (AREA)
US695959A 1956-11-30 1957-11-12 Bi-directional step-by-step relay Expired - Lifetime US3112377A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL354821X 1956-11-30

Publications (1)

Publication Number Publication Date
US3112377A true US3112377A (en) 1963-11-26

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ID=19785177

Family Applications (1)

Application Number Title Priority Date Filing Date
US695959A Expired - Lifetime US3112377A (en) 1956-11-30 1957-11-12 Bi-directional step-by-step relay

Country Status (7)

Country Link
US (1) US3112377A (en))
BE (1) BE562823A (en))
CH (1) CH354821A (en))
DE (1) DE1102861B (en))
FR (1) FR1194455A (en))
GB (1) GB868978A (en))
NL (1) NL212625A (en))

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3679848A (en) * 1970-06-01 1972-07-25 Spectrol Electronics Corp Combined potentiometer and switching structure with improved radial contact pressure contact means
US3863039A (en) * 1970-06-01 1975-01-28 Spectrol Electronics Corp Combined potentiometer and switching structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4086509A (en) * 1976-09-03 1978-04-25 Hansen Manufacturing Company Inc. Sandwiched slip ring assembly

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1540328A (en) * 1921-09-20 1925-06-02 Western Electric Co Contact terminal
US1852753A (en) * 1930-09-27 1932-04-05 Bell Telephone Labor Inc Telegraph signal distributing device
DE573921C (de) * 1933-04-07 Friemann & Wolf G M B H Drehschalter
GB622076A (en) * 1945-01-12 1949-04-26 Ericsson Telefon Ab L M Improvements in or relating to electric switches and contacts therefor
US2554724A (en) * 1948-11-10 1951-05-29 Oak Mfg Co Electric switch
US2587780A (en) * 1948-12-13 1952-03-04 Smitsvonk Nv Electrical ignition system
US2650960A (en) * 1952-06-04 1953-09-01 Grigsby Allison Company Inc Rotary electric switch assembly
FR1061083A (fr) * 1952-07-29 1954-04-08 Labinal Sa Des Ets Perfectionnements apportés aux appareils du genre des commutateurs et interrupteurs rotatifs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH231576A (de) * 1941-05-28 1944-03-31 Hermes Patentverwertungs Gmbh Elektrischer Schalter zum doppelpoligen Einzel-, Parallel- und Hintereinanderschalten von zwei Heizwiderständen.
US2549998A (en) * 1945-12-06 1951-04-24 Grigsby Allison Co Inc Electric switch construction
DE835767C (de) * 1948-10-22 1952-04-03 Karl Glaser Umschalter fuer die Schaltelemente in Hoch- und Niederfrequenz- Abstimmstromkreisen
DE825283C (de) * 1950-04-07 1951-12-17 Hans M Oberlaender Schalter fuer Hochfrequenzgeraete

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE573921C (de) * 1933-04-07 Friemann & Wolf G M B H Drehschalter
US1540328A (en) * 1921-09-20 1925-06-02 Western Electric Co Contact terminal
US1852753A (en) * 1930-09-27 1932-04-05 Bell Telephone Labor Inc Telegraph signal distributing device
GB622076A (en) * 1945-01-12 1949-04-26 Ericsson Telefon Ab L M Improvements in or relating to electric switches and contacts therefor
US2554724A (en) * 1948-11-10 1951-05-29 Oak Mfg Co Electric switch
US2587780A (en) * 1948-12-13 1952-03-04 Smitsvonk Nv Electrical ignition system
US2650960A (en) * 1952-06-04 1953-09-01 Grigsby Allison Company Inc Rotary electric switch assembly
FR1061083A (fr) * 1952-07-29 1954-04-08 Labinal Sa Des Ets Perfectionnements apportés aux appareils du genre des commutateurs et interrupteurs rotatifs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3679848A (en) * 1970-06-01 1972-07-25 Spectrol Electronics Corp Combined potentiometer and switching structure with improved radial contact pressure contact means
US3863039A (en) * 1970-06-01 1975-01-28 Spectrol Electronics Corp Combined potentiometer and switching structure

Also Published As

Publication number Publication date
DE1102861B (de) 1961-03-23
NL212625A (en))
BE562823A (en))
GB868978A (en) 1961-05-25
FR1194455A (fr) 1959-11-10
CH354821A (de) 1961-06-15

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