US3539736A - Reciprocable and rotatable switch with the same cams performing both actions - Google Patents

Reciprocable and rotatable switch with the same cams performing both actions Download PDF

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Publication number
US3539736A
US3539736A US738503A US3539736DA US3539736A US 3539736 A US3539736 A US 3539736A US 738503 A US738503 A US 738503A US 3539736D A US3539736D A US 3539736DA US 3539736 A US3539736 A US 3539736A
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United States
Prior art keywords
cams
armatures
switch
cam
shaft
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Expired - Lifetime
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US738503A
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English (en)
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Hubert L Naimer
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    • 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
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/62—Contacts actuated by radial cams
    • 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
    • H01H19/64—Encased switches adapted for ganged operation when assembled in a line with identical switches, e.g. stacked switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H25/00—Switches with compound movement of handle or other operating part
    • H01H25/06—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement

Definitions

  • the present invention relates generally to an electrical switching device comprising at least one cam switch, but preferably including a plurality of coaxially arranged cam switches, the armatures of each cam switch being operated by a longitudinally displaceable driving shaft via cams seated thereon, the cams following the axial movement of the driving shaft inside the switch housing.
  • Switching devices of this kind which in addition to the cam switches (approximately up to ten and in some cases even more) also contain a notched mechanism and if necessary also auxiliary devices such as repeating switches, special mechanical locks and the like and wherein the individual cam switches as a rule contain not less than two, but usually more, armatures, make it possible to carry out a switching program which is determined by the shape of the cam peripheries controlling these armatures, the relative positions of the cams and the number of armatures provided, as a particular chronological sequence of switching processes whereby it is also possible to utilize the shortcircuiting of certain contacts of different cam switches in addition to other switching steps.
  • Switching devices of this kind are used for the most varied purposes; one important field of use is the control technique. This particular use makes increasingly high demands upon the structure of the switches, since it is necessary for them to control switching programs, which are becoming more and more complicated, by means of a small compact and inexpensive switch unit.
  • the present invention shows a way by which a switching device of the type mentioned herein can, by simple means, be so designed as to make it possible to superimpose at least one additional switching program upon the switching program obtainable by rotation of the switch shaft, without any essential change in the structure of the switching device.
  • this is done, in a switching device of the type hereinabove mentioned, in that for each of the axial operating positions which the cams can assume in the housing with respect to the armatures, said cams are provided with control surfaces which become effective when the cams are rotated, in order to carry out respective switching programs in each of these axial positions.
  • Switching devices of the type upon which the invention is based have already been designed with axially movable shafts, but in those cases this axial mobility of the shaft was only utilized to operate only a single switch provided in addition to the cam switches, the axially operable switch responding solely to such a displacement of the actuating member.
  • the control member of these additional switches is in the shape of a truncated cone which, dependent upon its axial position in relation to armatures associated with Patented Nov. 10, 1970 it, opens these armatures or allows them to assume their closed position, irrespective of the rotary positions assumed by shaft assigned to the cam switches.
  • a switching device of this kind comprising a plurality of cam switches
  • the cams in at least two different axial positions of the driving shaft present different control surfaces to the armatures, whereupon the switch shaft is brought into one of at least two predetermined axial positions in relation to the stems of the armatures in which position it can be rotated.
  • This axial displacement with subsequent rotary positioning can also be effected by a remote-control or remote-driving device.
  • the driving shaft of a switch is provided with an indexing wheel or disc which permits the axial displacement of the driving shaft to be effected in certain rotary positions only, for which purpose it is adapted to interfit with a complementary counter-disc.
  • FIG. 1 shows a switching device according to the invention with two cam switches for manual operation with the aforementioned indexing wheel, in axial cross section;
  • FIG. 2 shows a section along the line IIII
  • FIG. 3 shows a section along line III-III of FIG. 1;
  • FIGS. 4 and 6 show axial sections through cams as used in switches according to the invention, respectively taken on lines IVIV and VI-VI of FIGS. 3 and 7; and
  • FIGS. 5 and 7 are cross-sectional views respectively taken on lines VV and VII-VII of FIGS. 4 and 6.
  • the switching device shown in FIG. 1 consists of two cam switches, each composed of a lower housing portion 1 and a cover portion 2.
  • a driving shaft 3 is common to both switches and carrier cams 4 acting upon stems 5 which carry at their ends armatures 6 which are pressed against fixed counter-contacts 8 by means of biasing springs 7.
  • the counter-contacts form connecting leads 8a secured to terminal screws (not shown) which in the customary manner are accommodated, in the practical realization of these switches, inside the periphery of the housing and in recesses thereof.
  • each switch contains two armatures 6.
  • the driving shaft 3 is connected for joint rotation and axially shifting with its cams 4; at the top end it carries a toothed plate or indexing disc 10, for the purpose of which will be described further on, and a control knob 11.
  • the driving shaft 3 with its cams 4, the toothed plate 10 and the control knob 11 form one unit which is journaled and longitudinally displaceable inside the housing parts 1, 2 and is axially loaded by pressure springs 12 which are clamped between the bottom of housing part 1 I and respective flanges arranged on the undersides of cams 4.
  • a counter-plate 14 is interlockingly engageable by the toothed plate 10.
  • the counter-plate 14 is pressed by a part 15 with its flange 1411 against the cover 2 of the upper cam switch so that it cannot rotate.
  • the cams 4 also have flanks 4b which become effective when the cams are axially displaced. If, therefore, the knob 11 of FIG. 1 is pressed down with compression of springs 12, these flanks engage the stems 5 to reverse (i.e. open) the corresponding armature contacts.
  • the loading springs 12 in order to save overall height, are not arranged coaxial with driving shaft 3 but laterally thereof, approximately midway between bolts 16 and symmetrically duplicated.
  • a supporting plate 22 FIGS. 1 and 2 is placed on cam 4 and has projecting extremities upon which these loading springs may bear at 23 on being inserted between these extremities and the bottom of housing 1.
  • An electrical switching device comprises a housing; a shaft rotatable and axially shiftable in said housing; contact means in said housing including a plurality of armatures arrayed about said shaft, said armatures being independently movble between a closed and an open position; cam means on said shaft having first working surfaces effective upon rotation and second working surfaces effective upon axial shifting for moving said armatures from one position to the other position thereof; and
  • the locking disc has two projections 10a, FIG.
  • the two switching programs and their chronological sequence of chronological intercalation therefore depend not only upon the number of cam switches and the number of armatures thereof but also upon the shape of cams 4, the shape of locking disc 10 the shape of the counterdisc 14 and the extent of the possible axial displacement of the driving shaft 3; the following are a few simple examples:
  • the cam 4 has a further, third recess indicated in dotted lines which, for example, could go right through, i.e. without any beveled flank 4b so as to operate independently of any axial displacement of the driving shaft.
  • Cam 18 in FIGS. 4 and 5 has three working surfaces A, B and C, which however are not alike.
  • the driving shaft would have to be capable of occupying three levels and adapted also to be rotated in these positions; accordingly, two or three indexing discs could be provided with corresponding counter-discs.
  • This idea could be further developed in that the driving shaft carries out a sequence of programmed upward and forward movements during rotation by means of these control discs.
  • FIGS. 6 and 7 there is shown an asymmetrical cam 20 operating on two levels; control surface 20a acts during tion thereof.
  • a switching device as defined in claim 1 wherein said armatures have stems guided in said housing for substantially radial motion relative to said shaft, said stems having tips engageable by said first and second surfaces.
  • a switching device as defined in claim 5 wherein said cam means comprises a body with a plurality of peripherally spaced recesses bounded by said first and second surfaces, the spacing of said recesses corresponding to that of said armatures whereby the latter are concurrently movable by a displacement of said shaft.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Mechanisms For Operating Contacts (AREA)
US738503A 1967-06-23 1968-06-20 Reciprocable and rotatable switch with the same cams performing both actions Expired - Lifetime US3539736A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT585867A AT278143B (de) 1967-06-23 1967-06-23 Elektrische Schalteinrichtung

Publications (1)

Publication Number Publication Date
US3539736A true US3539736A (en) 1970-11-10

Family

ID=3580300

Family Applications (1)

Application Number Title Priority Date Filing Date
US738503A Expired - Lifetime US3539736A (en) 1967-06-23 1968-06-20 Reciprocable and rotatable switch with the same cams performing both actions

Country Status (13)

Country Link
US (1) US3539736A (nl)
AT (1) AT278143B (nl)
BE (1) BE716829A (nl)
CH (1) CH473465A (nl)
DE (1) DE1765607A1 (nl)
DK (1) DK122357B (nl)
ES (1) ES152114Y (nl)
FI (1) FI51875C (nl)
FR (1) FR1569418A (nl)
GB (1) GB1214695A (nl)
NL (1) NL162236C (nl)
SE (1) SE352771B (nl)
YU (1) YU31553B (nl)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3609265A (en) * 1970-06-25 1971-09-28 Hoover Co Dual-actuated switch-operating mechanism
US3992595A (en) * 1974-12-10 1976-11-16 Westinghouse Electric Corporation Non-load tap-changer switch
US4000382A (en) * 1973-02-12 1976-12-28 Honeywell Inc. Adjustable mechanism for control devices
US4110581A (en) * 1975-03-14 1978-08-29 C.G.R. Mev Device for monitoring the fitting in position of detachable elements in their support
US4481388A (en) * 1982-02-26 1984-11-06 Electrak International, Inc. Electrical plug with automatic shut-off feature
US4503412A (en) * 1982-03-25 1985-03-05 Hubert Laurenz Naimer Star-delta-switch
WO1986006872A1 (en) * 1985-05-13 1986-11-20 Bell Industries, Inc. Illuminated push button switch
US4656323A (en) * 1985-05-13 1987-04-07 Bell Industries, Inc. Push button electric switch
US5817996A (en) * 1997-02-24 1998-10-06 Mavell Corporation Multi-functional electrical switch assembly with momentary operating mechanism
US5921381A (en) * 1998-01-06 1999-07-13 Watlow Electric Manufacturing Company Locking button
US6803532B1 (en) 2004-03-19 2004-10-12 Kyea Kwang Lee Multi-positional switch for aircraft
DE102005019099A1 (de) * 2005-04-25 2006-10-26 Tend Technology Co., Ltd. Stufenschaltvorrichtung
US20150122627A1 (en) * 2013-11-04 2015-05-07 David P. Pora Conductivity power connection

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL277956A (nl) * 1961-05-30
GB1358689A (en) * 1970-11-10 1974-07-03 Lucas Industries Ltd Electric switches
DE3608930A1 (de) * 1986-03-18 1987-09-24 Standard Elektrik Lorenz Ag Verfahren zur regelung der optischen leistung eines lasers und schaltung zur ausuebung des verfahrens
DE3639827A1 (de) * 1986-11-21 1988-06-09 Standard Elektrik Lorenz Ag Impulsgeber
EP0285807A3 (de) * 1987-03-07 1990-03-14 Alcatel SEL Aktiengesellschaft Impulsgeber
DE3821612C1 (en) * 1988-06-27 1990-02-08 Leopold Kostal Gmbh & Co Kg, 5880 Luedenscheid, De Electrical switch
DE19510809C1 (de) * 1995-03-24 1996-07-04 Reinhausen Maschf Scheubeck Lastumschalter eines Stufenschalters

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR908443A (fr) * 1944-07-10 1946-04-09 E P I C Electricite Soc Combinateur électrique utilisable plus particulièrement avec les boîtes de vitesses électromagnétiques
US2603725A (en) * 1949-08-02 1952-07-15 Arrow Hart & Hegeman Electric Multiple circuit control switch
US2676235A (en) * 1952-03-08 1954-04-20 Ajax Electrothermic Corp Control means for induction furnaces
US2695339A (en) * 1951-03-30 1954-11-23 Westinghouse Air Brake Co Circuit controller
DE1109762B (de) * 1958-03-14 1961-06-29 Haller & Co E Schalter
US3188678A (en) * 1963-11-15 1965-06-15 Delman Co Control assembly for windshield clearing system
DE1230980B (de) * 1964-03-18 1966-12-22 Peter Larws Polster

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR908443A (fr) * 1944-07-10 1946-04-09 E P I C Electricite Soc Combinateur électrique utilisable plus particulièrement avec les boîtes de vitesses électromagnétiques
US2603725A (en) * 1949-08-02 1952-07-15 Arrow Hart & Hegeman Electric Multiple circuit control switch
US2695339A (en) * 1951-03-30 1954-11-23 Westinghouse Air Brake Co Circuit controller
US2676235A (en) * 1952-03-08 1954-04-20 Ajax Electrothermic Corp Control means for induction furnaces
DE1109762B (de) * 1958-03-14 1961-06-29 Haller & Co E Schalter
US3188678A (en) * 1963-11-15 1965-06-15 Delman Co Control assembly for windshield clearing system
DE1230980B (de) * 1964-03-18 1966-12-22 Peter Larws Polster

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3609265A (en) * 1970-06-25 1971-09-28 Hoover Co Dual-actuated switch-operating mechanism
US4000382A (en) * 1973-02-12 1976-12-28 Honeywell Inc. Adjustable mechanism for control devices
US3992595A (en) * 1974-12-10 1976-11-16 Westinghouse Electric Corporation Non-load tap-changer switch
US4110581A (en) * 1975-03-14 1978-08-29 C.G.R. Mev Device for monitoring the fitting in position of detachable elements in their support
US4481388A (en) * 1982-02-26 1984-11-06 Electrak International, Inc. Electrical plug with automatic shut-off feature
US4503412A (en) * 1982-03-25 1985-03-05 Hubert Laurenz Naimer Star-delta-switch
WO1986006872A1 (en) * 1985-05-13 1986-11-20 Bell Industries, Inc. Illuminated push button switch
US4656323A (en) * 1985-05-13 1987-04-07 Bell Industries, Inc. Push button electric switch
US5817996A (en) * 1997-02-24 1998-10-06 Mavell Corporation Multi-functional electrical switch assembly with momentary operating mechanism
US5921381A (en) * 1998-01-06 1999-07-13 Watlow Electric Manufacturing Company Locking button
US6803532B1 (en) 2004-03-19 2004-10-12 Kyea Kwang Lee Multi-positional switch for aircraft
DE102005019099A1 (de) * 2005-04-25 2006-10-26 Tend Technology Co., Ltd. Stufenschaltvorrichtung
US20150122627A1 (en) * 2013-11-04 2015-05-07 David P. Pora Conductivity power connection
US9396894B2 (en) * 2013-11-04 2016-07-19 Rocal Corporation Conductivity power connection

Also Published As

Publication number Publication date
NL6808795A (nl) 1968-12-24
DK122357B (da) 1972-02-21
DE1765607A1 (de) 1971-07-29
AT278143B (de) 1970-01-26
FI51875C (fi) 1977-04-12
FI51875B (nl) 1976-12-31
SE352771B (nl) 1973-01-08
FR1569418A (nl) 1969-05-30
ES152114U (es) 1970-01-01
NL162236B (nl) 1979-11-15
GB1214695A (en) 1970-12-02
ES152114Y (es) 1970-09-01
NL162236C (nl) 1980-04-15
BE716829A (nl) 1968-12-02
CH473465A (de) 1969-05-31
YU31553B (en) 1973-08-31
YU140968A (en) 1973-02-28

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