US3368041A - Rotary miniature commutator switch with improved contact structure - Google Patents

Rotary miniature commutator switch with improved contact structure Download PDF

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Publication number
US3368041A
US3368041A US557010A US55701066A US3368041A US 3368041 A US3368041 A US 3368041A US 557010 A US557010 A US 557010A US 55701066 A US55701066 A US 55701066A US 3368041 A US3368041 A US 3368041A
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United States
Prior art keywords
contact
contacts
circuits
switch
commutator
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
US557010A
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English (en)
Inventor
Henri L Chambaut
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HENRI L CHAMBAUT
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HENRI L CHAMBAUT
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Publication date
Priority claimed from MC562A external-priority patent/MC578A1/xx
Application filed by HENRI L CHAMBAUT filed Critical HENRI L CHAMBAUT
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Publication of US3368041A publication Critical patent/US3368041A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H01H1/245—Spring wire contacts
    • 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
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/11—Movable parts; Contacts mounted thereon with indexing means
    • 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
    • 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

  • a rotary commutator miniature switch, with improved contact structure comprising two annular discs in juxtaposed position, one of the discs includes a control axle secured thereto, and spring means for locking and associated with the one of said discs are provided in a plurality of contact positions.
  • Circuit means include a plate having three portions, and a rotor supports and secures the three portions. Each of the portions includes a circuit of mobile contacts, adapted to be disposed opposite of fixed contacts. Two of the circuits having no continuous contact and a third of the circuits has continuous contact, so that contact continuity through at least one of the portions is assured.
  • the present invention relates to a rotary miniature commutator switch, which provides the possibility of establishing all normal or complex combinations generally in connection with commutators of all types, which have much larger dimensions.
  • FIGURE 1 is an end view of the commutator switch, designed in accordance with the present invention
  • FIG. 2 is an axial section of the commutator switch disclosed in FIG. 1;
  • FIG. 3 is an axial section of the commutator switch, disclosing a second embodiment thereof;
  • FIG. 4a is an elevation of the commutator switch disclosed in FIG. 3;
  • FIG. 4b is an elevation of the commutator switch shown in FIG. 4a, yet in a different position;
  • FIG. 5 is a fragmentary axial section of the embodiment of the switch disclosed in FIG. 3;
  • FIG. 6 is a bottom plan view of the showing in FIG. 5;
  • FIG. 7 is an axial section of the commutator switch disclosing a third embodiment of the present invention.
  • FIG. 8 is an end view of the commutator switch disclosing a variation over that of FIG. 7;
  • FIG. 9 is a top plan view of the commutator switch disclosed in FIG. 8.
  • the commutator switch comprises two parts A and B disposed next to each other and intimately connected with each other by securing means distributed therein on their peripheral members 5 and 6 and embedded with all necessary precision.
  • a connection by a special process, as, for instance, by soldering can be provided, but practically annular discs 1 and 2, one of which is solidly locked by washers to the outer face of the control axle h, maintain a circular closing member 3, which places itself under the discs 1 and 2, and on the other hand on a stator s by grooves 5 and 6, so that they constitute a very safe assembly arrangement, which serves at the same time for centering and guiding the axle h of the rotor r.
  • the water-tightness about the control axis m controlling the commutator is assured by a slip ring d of latex or other similar product, and disposed between the elements a and m, yet can be substituted by a flat ring of neutral material and predetermined thickness, which operates under pressure of springs p, which assures a good and sufi'i cient connection.
  • the control axis m of the commutator forms an integral mass with its portion of greatest diameter constituting the rotor of a locking member disposed in the member a.
  • each ball t adapts itself to one of the orifices distributed circularly over the surface of the disc n maintained in place in the wall of the body a.
  • the portion of the control axle h which drives the contact circuits 0 and c1 is integral with the control axle of the commutator m by means of gripping or soldering or both, of the portion g inside of its mounting reserved for this purpose in the mass adjacent to said axle.
  • control axle h indicated of square cross-section for one part of its length, can be of any other form capable of increasing the insulation surrounding the mass.
  • FIGS. 1 and 2 a first embodiment of the rotating commutator having multiple contacts and designed in accordance with the present invention, is disclosed.
  • the third circuit represented by c is .a continuation of contact, its contact engagement being increased by dimensions which it can carry, without interruption, on one of the exterior double contacts 12, thus assuring the contact continuity with the interior point b without diminishing the insulation between one and any of the other points.
  • the extremities of the circuits have rounded-up angles and the parts forming the engagement contact are at their edge slightly raised in order to facilitate the entrance thereof with the fixed elements of the stator.
  • the fixed double contacts b and b1 disposed parallel relative to the external part and inside of the circular arch forming the circuits and 0 are supported at the edge of the latter, in order to establish the contacts.
  • fixed contacts b and b1 are disposed in openings 1 arranged vertically and horizontally in the portion of the stator s where the rotor r is arranged and its contact circuits 0 and c
  • the base of the stator s is radially grooved, in order to receive in the aired recesses the horizontal portion of the fixed contacts b and b1.
  • An insulating plate v provided on the stator s by means of rivets k, maintains the contact elements in the best supporting position.
  • the fixed contacts b and b1 are made of silver threads, of precious metal, alloys or laminated metal, cut and treated, in order to give the same a degree of resistance against bending, assuring best contacts for support, regardless what the duration may be, the fixed elements being capable of being single, double or triple contacts, or more, if the dimensions of the commutator permit the same.
  • the rotary commutator is equipped for twelve positions providing for each revolution the same number of double contacts. This number is not limited and can be reduced or increased, in accordance with the surface which is available.
  • each circuit can consist on its arch of a variety of contacts rendering possible the least habitual combinations.
  • FIG. 3 one embodiment of the present invention is disclosed, which differs from the preceding, described embodiment merely by the disposition of the contacts b and b1, at its start and at its end.
  • a portion y consisting of a radial groove identical with that of the stator s is intermediately provided in order to receive therein the same form of 12 central contacts b which permit the use of openings of the outer portion.
  • the commutator as shown in FIG. 3, is likewise equipped with twelve positions, can provide the following combinations without excluding all other classic or more complex combinations:
  • FIGS. 5 and 6 another embodiment is disclosed, wherein the thickness of the stator s can be reduced by a different arrangement given to the contact elements b2 and then bent and permitting the arrangement of all combinations without requiring recourse to different models.
  • FIG. 7 which likewise provides a different embodiment of the present invention, comprises a simplified contact element, which is limited itself to four principal portions.
  • a flask v covers the segments b2 and guides over a great length the rotor r.
  • the stator s maintains the segments b3 and b2 nearly over their entire length.
  • the rotor r is controlled by the axle h and the flask 3 closes the structure.
  • the assembly of the flask v on the stator s is obtained by means of rivets of insulating material, which are mounted or riveted in a hot state. Openings l are arranged in the insulating mass of the stator s, in order to locate therein the portions of the contact segments which remain free.
  • These contact segments are made of laminated metal for a single contact or grooved along a portion of their length, in order to provide a double contact,'their extremity being lightly lifted, in order to facilitate the passage of the circuits c below the segments. They can be doubled by a spring of hard metal, hardened and designed to increase their power of the contact.
  • This embodiment permits the use of a mounting of completely controlled and finished elements before the contact element receives the locking in the position.
  • This contact element is neither tight nor closed.
  • the stator s has two securing plates 14 permitting the passage of securing rods, the contact segments b3 being slotted over their length, in order to assure a double contact at the external portion of the circuits 0 and 01, so that the contacts 124 contacts the circuits c on the surface by traversing the openings 1.
  • All contact segments are secured to the stator s by rivets 16, which traverse the stator through the opening 15.
  • the circuit plates c and c1 are fixed by rivets on the rotor r which comprises two horizontal parts.
  • a coil spring 20' is placed in the rounded portions of the segments b2 and b3, in order to increase the contact force against the circuits 0 and 01.
  • Small radial bosses or high portions disposed at the surface of the circuits 0 and 01, on which they engage the segments b4 (FIG. 8), without diminishing the contact stability, provide, due to the possibility for reduction of the contact surface, a resistance nearly nil for the small and medium intensities.
  • a rotary commutator miniature switch with improved contact structure, comprising two annular discs in juxtaposed position,
  • one of said discs including a control axle, secured thereto,
  • circuit means including a plate having three portions
  • each of said portions including a circuit of mobile contacts, adapted to be disposed opposite of fixed contacts,
  • the switch as set forth in claim 1, which includes twelve contacts in said circuit means per revolution of said rotor.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Motor Or Generator Current Collectors (AREA)
US557010A 1965-06-11 1966-06-13 Rotary miniature commutator switch with improved contact structure Expired - Lifetime US3368041A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
MC562A MC578A1 (fr) 1965-06-11 1965-06-11 Commutateur contacteur rotatif subminiature
MC4165 1965-06-25
MC4566 1966-05-23

Publications (1)

Publication Number Publication Date
US3368041A true US3368041A (en) 1968-02-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
US557010A Expired - Lifetime US3368041A (en) 1965-06-11 1966-06-13 Rotary miniature commutator switch with improved contact structure

Country Status (7)

Country Link
US (1) US3368041A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE682138A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH449099A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1590236A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1565318A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1105868A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL6608124A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4410773A (en) * 1981-10-09 1983-10-18 Porsa Systems Corp. Multipole data switch
US4415783A (en) * 1982-09-20 1983-11-15 Porta Systems Comp. Multipole data switch
US4473726A (en) * 1982-09-27 1984-09-25 Porta Systems Corp. Contact pin and mounting construction for multipole data switch

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2716964C3 (de) * 1977-04-16 1981-10-08 Karl 7519 Oberderdingen Fischer Elektrischer Schalter mit Kontaktzungen, die zwischen zinnenartig abwechselnd ineinandergreifenden Vorsprüngen und Vertiefungen von Gehäuseteilen festgelegt sind

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164690A (en) * 1962-04-04 1965-01-05 Chicago Dynamic Ind Inc Rotary type electric switch with wafer plate shorting structure
US3242271A (en) * 1963-07-12 1966-03-22 Globe Union Inc Electrical switch and improved contact finger and contact clip construction therefor
US3248488A (en) * 1961-02-20 1966-04-26 Globe Union Inc Switch construction and contact clip mounting arrangement therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3248488A (en) * 1961-02-20 1966-04-26 Globe Union Inc Switch construction and contact clip mounting arrangement therefor
US3164690A (en) * 1962-04-04 1965-01-05 Chicago Dynamic Ind Inc Rotary type electric switch with wafer plate shorting structure
US3242271A (en) * 1963-07-12 1966-03-22 Globe Union Inc Electrical switch and improved contact finger and contact clip construction therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4410773A (en) * 1981-10-09 1983-10-18 Porsa Systems Corp. Multipole data switch
US4415783A (en) * 1982-09-20 1983-11-15 Porta Systems Comp. Multipole data switch
US4473726A (en) * 1982-09-27 1984-09-25 Porta Systems Corp. Contact pin and mounting construction for multipole data switch

Also Published As

Publication number Publication date
BE682138A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1966-11-14
DE1590236A1 (de) 1972-03-30
FR1565318A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1969-05-02
GB1105868A (en) 1968-03-13
NL6608124A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1966-12-12
CH449099A (fr) 1967-12-31

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