EP0006967B1 - Mécanisme de commutation pas à pas - Google Patents

Mécanisme de commutation pas à pas Download PDF

Info

Publication number
EP0006967B1
EP0006967B1 EP79100792A EP79100792A EP0006967B1 EP 0006967 B1 EP0006967 B1 EP 0006967B1 EP 79100792 A EP79100792 A EP 79100792A EP 79100792 A EP79100792 A EP 79100792A EP 0006967 B1 EP0006967 B1 EP 0006967B1
Authority
EP
European Patent Office
Prior art keywords
spring
housing
pin
engagement
pinion
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
Application number
EP79100792A
Other languages
German (de)
English (en)
Other versions
EP0006967A1 (fr
Inventor
Heinrich Masch-Techn. Htl Haller
Hans Ing. Htl Wermelinger
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.)
Rheinmetall Air Defence AG
Original Assignee
Contraves AG
Oerlikon Contraves AG
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 claimed from CH1147678A external-priority patent/CH648955A5/de
Application filed by Contraves AG, Oerlikon Contraves AG filed Critical Contraves AG
Publication of EP0006967A1 publication Critical patent/EP0006967A1/fr
Application granted granted Critical
Publication of EP0006967B1 publication Critical patent/EP0006967B1/fr
Expired 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
    • H01H19/001—Thumb wheel switches
    • H01H19/003—Thumb wheel switches having a pushbutton actuator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1526—Oscillation or reciprocation to intermittent unidirectional motion
    • Y10T74/1529—Slide actuator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1558—Grip units and features
    • Y10T74/1584—Gripper mountings, slide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2133—Pawls and ratchets
    • Y10T74/2141—Sliding pawls

Definitions

  • the invention relates to a forward and reverse switchable step switch for a multi-stage switch, which is arranged in a housing and has two individual, functionally separate, each provided with a push button, a plunger and a flexible switching element molded on the plunger, on the return spring acts and can be brought into engagement by means of a linear working movement with the pinion of a character carrier arranged on the axis of symmetry of the housing and operatively connected to a raster spring.
  • a counter which has two push buttons each provided with a molded-on driver and guided by a pin and a numerical roller provided with switching pins on one side.
  • the respective driver engages with one of the switching pins, as a result of which the digit roller is rotated.
  • the pushbuttons are each pressed back into the basic position by a spring arranged in the pushbutton, while a correspondingly arranged index spring with a wedge tip reaches the space between two switching pins.
  • the switching process is initiated by the corresponding push button and completed by the associated raster spring.
  • a step switch of the type mentioned for a multi-step switch which essentially consists of two functionally separate actuating elements.
  • Each actuating element is guided in the housing by two pins and has a molded-on switching element and also a molded-on grid element which is in engagement with the gearwheel in the rest position.
  • the switching element which is distanced from the gearwheel by a cam in the rest position, is designed and arranged such that it comes into engagement with the gearwheel during the switching process due to the linear movement, while the grid element disengages.
  • the pin guided in a groove of the actuating element serves as a movement limitation during the switching process, and the other pin prevents the switching element from deflecting when the switching element hook engages in the corresponding tooth gap of the gearwheel.
  • the gearwheel is positioned or locked in place by the hastetement of the other, non-actuated actuating element.
  • This known stepping mechanism has the disadvantage that the hook of the switching element, since it is to come into engagement with the gearwheel by a linear switching movement, must be located very close to the gearwheel and therefore there is a risk of unintentional engagement of the non-actuated switching element.
  • the invention has for its object to provide a stepping mechanism of the type mentioned, in which an unintentional intervention of the non-actuated switching element is prevented with a relatively small switching travel of the switching element and without its special adjustment; despite the exact operation of the stepping mechanism, it should be possible to easily assemble the actuating elements without additional aids and to manufacture them in an economical plastic injection process, even in the smallest version.
  • the respective switching element is deflected from its rest position by the corresponding link each time it is actuated, and is brought into engagement with the pinion via the second pin.
  • the arrangement according to the invention has the advantage that the pin is at a sufficient distance from the pinion in the rest position of the switching element and thus an unintentional intervention is avoided with certainty, and that only a small switching path is required to engage the pin with the pinion bring to. This ensures an exact switching process.
  • the actuators can be manufactured using the plastic injection molding process, can be installed without additional aids and do not need to be adjusted.
  • the raster spring is supported on the housing and provided with a raster cam which is in engagement with the toothed pinion; in contrast to the two raster elements formed on the actuating elements in the According to the present invention, the raster spring is separated from the actuating elements and therefore ensures a much better locking and positioning of the pinion than in the prior art.
  • Fig. 1 shows a sectional side view of a push button switch 100 and one can see a housing 10 formed from a side wall 11, end face 12, upper and lower wall 13, 15 and a rear wall 14.
  • a housing 10 formed from a side wall 11, end face 12, upper and lower wall 13, 15 and a rear wall 14.
  • a first Actuating element 30 a second actuating element 50, a character carrier 55 with a toothed pinion 56 fastened thereon and a raster spring 60, an existing forward and reverse switchable indexing mechanism are arranged.
  • Fig. 2 the switch is shown in section along the line 11-11 in Fig. 1 and you can see the box-shaped housing 10, which is closed on one side by the SeItenwand 11 and open on the other opposite side. Furthermore, the first actuating element 30 inserted into the housing 10 and a section of a spring element 52 of the second actuating element 50 can be seen.
  • the open side is shown by a circuit board 90 which is schematically shown at a distance from the open side for reasons of simplified illustration, and also by a Closing distance to the housing 10 shown closing plate 80, for which purpose the housing 10 has at least one pin 25, 25 'at the corners, which snaps like a push button into a correspondingly provided in the end plate 80 bore 81.
  • the corners of the side wall 11 are each provided with a bore 26 into which pins 71 of an end plate 70 snap.
  • the two end plates 70, 80 each have two spring-elastic molded brackets 72 and 82 for better mounting in the front panel of a control cabinet or the like.
  • FIG. 4 shows isometrically a first embodiment of the first actuating element 30 according to the invention, which essentially comprises a pushbutton 31, a plunger 32, a hairpin-shaped spring element 45 formed on one end of the plunger 32 and consisting of two arms 46, 47 has a switching element 40.
  • the switching element 40 is arranged laterally on the plunger 32 with a web 41 and runs approximately parallel to the plunger 32 with a further, stepped switching arm 42.
  • At the end of the switching arm 42 there is a first pin 44 on the lower side and at a distance from it Pin 44 arranged on the upper side of a second pin 43.
  • an angular corner piece 33 or 36 is formed on both ends of the plunger 32.
  • the two corner pieces 33, 36 are preferably separated from one another by a recess 39 in order to be able to install the largest possible character carrier 55.
  • the corner piece 33 has an end face 34 and a side wall 35.
  • the push button 31 is arranged on the end face 34, while the side wall 35 is preferably wedge-shaped on the inside 35 'or has a beveled surface 35 ".
  • the corner piece 36 also has a side wall 38 with a beveled surface 38" on the inside 38' and a back 37 on which the arm 47 of the spring element 45 is integrally formed.
  • the connection point from the arm 47 to the rear side 37 is preferably provided with a bead 48.
  • two essentially identical but mirror-image actuating elements 30, 50 with spring elements 45, 52 arranged offset in relation to one another are required.
  • the spring element 45 of the first actuating element 30 is arranged at the bottom of the corner piece 36 and the spring element 52 of the second actuating element 50 is arranged above and fastened (FIG. 2).
  • FIG. 5 shows a section of a pushbutton switch 100 'with actuating elements 62, 63 according to a first variant, which are also mirror images of one another and differ only in the embodiment of the actual spring elements from the first embodiment according to FIG.
  • the parts and item numbers not shown correspond to the two actuating elements 30, 50 according to FIGS. 1 and 4.
  • the actuating elements 62, 63 each have a spring element 64 or 65, which is formed from arms 66, 67 and is also hairpin-shaped. At the end of the arm 67 there is a bearing eye 63 which can be easily pivoted about the axis of a pin 69 on a sliding and bearing surface 11 "provided essentially parallel to the side wall 11 'at the corners in the housing 10'.
  • the spring elements are also offset in height, arranged one above the other and correspondingly the associated sliding and bearing surface 11 "in the housing 10 '.
  • FIG. 1 shows a section of a pushbutton switch 200 with actuating elements 130, 150 according to a second variant, which are also mirror images of one another and differ only in the embodiment of the spring-elastic support in the housing from the first embodiment according to FIG. 1.
  • the housing, the character carrier with the toothed pinion, the raster spring and all bearing and guide elements arranged in the housing correspond to the exemplary embodiment according to FIG. 1 and are identified by the same item numbers.
  • the two actuating elements 130, 150 used in the housing 10 are operatively connected to a helical spring 75 mounted on a pin 24.
  • a further actuating element 130 according to the second variant is shown isometrically in FIG. 7, which has a pushbutton 131, a plunger 132, a head piece 129 formed on the plunger with a groove 128 arranged on the end face, and a switching element 140.
  • the switching element 140 is arranged laterally on the plunger 132 with a web 141 and runs approximately parallel to the plunger 132 with a stepped switching arm 142. At the end of the switching arm 142 there is a first pin 144 on the lower side and at a distance from the pin 144 a second pin 143 is arranged on the upper side.
  • an angle-shaped corner piece 133 is formed on the one hand at the ends of the tappet 132 and on the other hand the head piece 129.
  • the two parts (corner piece 133, head piece 129) are preferably separated from one another by a recess 139 in order to be able to install the character carrier 55.
  • the corner piece 133 has an end face 134 and a side wall 135.
  • the pushbutton 131 is arranged on the end face 134, while the side wall 135 is preferably wedge-shaped on the inside 135 'or has a beveled surface 135 ".
  • the head piece 129 also has a side wall 138 with a face 138" on the inside 138' .
  • the plunger 32 and 132 By actuating the push button, the plunger 32 and 132 guided on the one side on the inner wall 13 'and on the other side by two pins 17, 17' firmly connected to the side wall 11, in the direction of arrow 1, while the actuating element resiliently the inner side 14 'of the rear wall 14.
  • the switching element 40 or 140 is simultaneously moved in the direction of arrow 1, so that the lower pin 44 or 144 inevitably slides along the inside 19 "of a preferably elliptical-shaped link 19 that is firmly connected to the side wall 11 until the upper one Pin 43: or 143, as shown for example for the actuating element 30 in Fig. 3, comes into engagement with the tooth 57 of the pinion 56.
  • the deflection of the switching element 40 or 140 is achieved by the lower pin 44 or 144 guided on the link 19.
  • the raster spring 60 is preferably guided with a guide pin 61 in a groove 23 provided on the inside of the side wall 11 and is supported on the outer, reinforced ends by correspondingly assigned stops 18, 18 'provided on the inside of the side wall 11.
  • the housing with the scenes, pins, stops etc. arranged on the inside of the side wall, as well as the actuating elements and the raster spring can preferably be produced from suitable plastic in an economical injection molding process, so that an efficient mass production and thus also low manufacturing costs are ensured.

Landscapes

  • Push-Button Switches (AREA)

Claims (5)

1. Mécanisme du commutation pas à pas, commutable en marche avant et en marche arrière, pour un commutateur à prises multiples, qui est logé dans un boîtier (10, 10') et comporte deux éléments de manoeuvre (30, 50; 130, 150; 62, 63) distincts, fonctionnellement séparés, ayant chacun un bouton poussoir (31, 51; 131), un poussoir (32; 132) et un élément de commutation (40; 140) élastique souple, formé sur le poussoir (32; 132), soumis à l'action d'un ressort de rappel et pouvant être mis en prise par un mouvement linéaire, avec des pignons dentés (56), montés sur l'axe de symétrie du boîtier et coopérant avec un ressort de rappel (60), et un support de signes (55), disposjtif caractérisé en ce que:
a) l'élément de commutation (40; 140) formé- sur le poussoir (32; 132) des éléments de manoeuvre (30, 50; 130. 150) est nécessairement dévié de sa position de repos lors de chaque pas de commutation dirigé contre la force de rappel, et vient en prise avec le pignon (56), et à la fin de l'éxécution au pas de commutation, la force de rappel remet cet élément en position de repos;
b) pour dévier de force l'élément de commutation (40; 140), il est prévu, dans sa partie avant, sur le côté inférieur, un premier goujon (44; 144) appliqué dans une coulisse (19) prévue dans le boîtier (10), et qui est guidé par celui-ci,
c) pour le pas de commutation, l'élément de commutation (40; 140) comporte dans la zone avant, sur le côté supérieur, un second goujon (43; 143) susceptible d'être mis en prise avec le pignon denté (56).
2. Mécanisme de commutation pas à pas selon la revendication 1, caractérisé en ce qu'à chaque élément de manoeuvre (30, 50) est prévu un élément à ressort (45) en forme d'épingie àcheveux, qui s'appuie par l'un de ses bras (46) en glissant contre le côté inférieur (14') du boîtier et un autre bras (47) est formé sur le poussoir (32).
3. Mécanisme de commutation pas à pas selon la revendication 1, caractérisé en ce que les deux éléments de manoeuvre (130, 150) sont montés chacun par un bras élastique (75', 75") en prise avec un ressort hélicoïdal (75) monté sur un goujon (24) situé sur l'axe de symétrie du boîtier (figure 6).
4. Mécanisme de commutation pas à pas selon la revendication 3, caractérisé en ce que chaque élément de manoeuvre (130, 150) comporte une . tête (129) munie d'une rainure (128) dans laquelle est guidé le bras de ressort (75', 75") du ressort hélicoïdal (75) (figure 7).
5. Mécanisme de commutation pas à pas selon la revendication 1, caractérisé en ce que le ressort d'encliquetage (60) se trouvant entre les deux éléments de manoeuvre (30,50; 130, 150) et s'appuyant principalement dans le boîtier (10), est réalisé en forme de fléau de balance et est en prise par un ergot d'encliquetage (59) avec le pignon denté (56).
EP79100792A 1978-03-17 1979-03-15 Mécanisme de commutation pas à pas Expired EP0006967B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH292278 1978-03-17
CH2922/78 1978-03-17
CH11476/78 1978-11-08
CH1147678A CH648955A5 (en) 1978-11-08 1978-11-08 Stepping switching mechanism for a multi-stage switch

Publications (2)

Publication Number Publication Date
EP0006967A1 EP0006967A1 (fr) 1980-01-23
EP0006967B1 true EP0006967B1 (fr) 1982-01-27

Family

ID=25691736

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79100792A Expired EP0006967B1 (fr) 1978-03-17 1979-03-15 Mécanisme de commutation pas à pas

Country Status (3)

Country Link
US (1) US4257283A (fr)
EP (1) EP0006967B1 (fr)
DE (1) DE2961939D1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383453A (en) * 1979-12-19 1983-05-17 Contraves Ag Stepping mechanism
ATE9520T1 (de) * 1980-11-10 1984-10-15 Contraves Ag Schaltwerk fuer einen codierdrehschalter.
US4780584A (en) * 1982-06-30 1988-10-25 Omron Tateisi Electronics Co. Digital switch assembly
FR2531261B1 (fr) * 1982-07-28 1985-10-18 Fm Atel Meca Precision Commutateur electrique miniature
US4464549A (en) * 1982-11-10 1984-08-07 Idec Izumi Corporation Digital switch
CA1254932A (fr) * 1984-07-04 1989-05-30 Sekisuke Yamanaka Interrupteur numerique
US4846715A (en) * 1987-12-21 1989-07-11 Pitney Bowes Inc. Postage meter voice coil motor printwheel setting assembly
US4875788A (en) * 1987-12-21 1989-10-24 Pitney Bowes Inc. Postage meter printwheel setting apparatus
EP0340447A1 (fr) * 1988-05-06 1989-11-08 Oerlikon-Contraves AG Interrupteur à bouton-poussoir à plusieurs positions
US20020175064A1 (en) * 2001-05-23 2002-11-28 Hoskins Steven R. Ratcheting switch
US20180218850A1 (en) * 2015-07-09 2018-08-02 Vita-Mix Management Corporation Multi-panel thickness mounting for switch

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2153430A (en) * 1937-11-20 1939-04-04 Mallory & Co Inc P R Switch index mechanism
US2645945A (en) * 1952-03-29 1953-07-21 Gen Electric Control device adjustment means
US3078733A (en) * 1959-11-13 1963-02-26 Eaton Mfg Co Actuator device
US3140365A (en) * 1960-11-08 1964-07-07 Mallory Timers Company Plunger switch having integral plunger and spring
US3331038A (en) * 1965-12-27 1967-07-11 American Mach & Foundry Stepping relay with two electromagnetic actuators
US3375337A (en) * 1966-01-05 1968-03-26 Veeder Industries Inc Pushbutton rotary switch having unitary actuator
DE1549987B1 (de) * 1967-03-23 1971-09-16 Hengstler Kg Zaehlwerk mit einer rastvorrichtung
US3435167A (en) * 1967-08-03 1969-03-25 Frederick W Pfleger Multiposition push-button switch
US3582594A (en) * 1968-11-15 1971-06-01 Mechanical Enterprises Inc Actuator useable for electric switches and the like
US3654413A (en) * 1970-02-12 1972-04-04 Janco Corp Bi-directional selector switch with slidable pawl transverse to plunger axis and ratchet wheel plane
GB1368137A (en) * 1971-10-13 1974-09-25 Engish Numbering Machines Ltd Rotary indexing mechanisms
JPS547227B2 (fr) * 1971-11-18 1979-04-05
FR2163956A5 (fr) * 1971-12-06 1973-07-27 Crouzet Sa
US3748915A (en) * 1972-02-24 1973-07-31 Cutler Hammer Inc Multiposition bi-directional rotary means for a switch or the like
CH581354A5 (fr) * 1974-01-14 1976-10-29 Hartmann Fritz
US4038508A (en) * 1975-05-22 1977-07-26 General Electric Company Electrical switch method operating such and indexing system
DE2653172C3 (de) * 1976-11-23 1982-03-11 Cherry Mikroschalter Gmbh, 8572 Auerbach Tastenkodierschalter

Also Published As

Publication number Publication date
US4257283A (en) 1981-03-24
EP0006967A1 (fr) 1980-01-23
DE2961939D1 (en) 1982-03-11

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