EP0051736B1 - Operating mechanism for a rotating encoding switch - Google Patents

Operating mechanism for a rotating encoding switch Download PDF

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Publication number
EP0051736B1
EP0051736B1 EP81107761A EP81107761A EP0051736B1 EP 0051736 B1 EP0051736 B1 EP 0051736B1 EP 81107761 A EP81107761 A EP 81107761A EP 81107761 A EP81107761 A EP 81107761A EP 0051736 B1 EP0051736 B1 EP 0051736B1
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EP
European Patent Office
Prior art keywords
wheel
detent
locking
symbol
latching
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
EP81107761A
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German (de)
French (fr)
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EP0051736A1 (en
Inventor
Hans 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
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Publication date
Application filed by Contraves AG, Oerlikon Contraves AG filed Critical Contraves AG
Priority to AT81107761T priority Critical patent/ATE9520T1/en
Publication of EP0051736A1 publication Critical patent/EP0051736A1/en
Application granted granted Critical
Publication of EP0051736B1 publication Critical patent/EP0051736B1/en
Expired legal-status Critical Current

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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
    • H01H19/001—Thumb wheel switches
    • 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

Definitions

  • the invention relates to a switching mechanism for a rotary coding switch, which is arranged in a housing and comprises a symbol or number wheel rotatably mounted about a first axle journal, a switching element and a locking device essentially formed from a ratchet wheel and at least one spring-loaded latching lever resting on the ratchet wheel, wherein the indexing wheel has a plurality of indexing recesses formed by indexing cams with an arcuate flank profile that are uniformly distributed on the circumference.
  • a switching mechanism for a rotary coding switch which is arranged in a housing and comprises a rotatably mounted number wheel, a coupling element and a switching element rotatably mounted against the restoring force of a spring, which with the coupling element by end teeth trained coupling parts is operatively connected.
  • the thumbwheel is provided with an internal bevel gear and is operatively connected to a correspondingly assigned bevel gear which is in engagement with the internal bevel gear by the restoring force of a spring.
  • the rotation of the thumb wheel is counteracted by a resiliently attached raster body on the housing, which engages with a roller in a ribbed, annular surface of the thumb wheel.
  • the rear derailleur of this rotary switch is designed so that the number wheel can only be turned between the individual display positions in the opposite direction.
  • a switching mechanism for a rotary coding switch with a one-piece actuator which comprises a numerical, switching and latching part.
  • the actuating member which is rotatably mounted on an axis, has a cylindrical, numbered first section, a second section provided with locking cams and recesses, and a third section provided with a plurality of shift fingers.
  • the positioning or detent required for the switching process is achieved in this rear derailleur by a spring resiliently against the third section designed as a ratchet wheel and deflectable against the restoring force of a spring.
  • a latching device formed with a ratchet wheel and two latching levers arranged symmetrically to one another is known from DE-C-1186124 and US-A-3 133 164, respectively.
  • the detent levers are either rounded at the one end which is in engagement with the detent wheel and can be deflected against the restoring force of a spring, or have a rotatably mounted roller.
  • the invention has for its object to provide for a rotary switch according to the preamble of claim 1, a forward and reverse switchable switchgear and a locking device and to arrange each other such that the switching and locking elements ensure a switching process exactly transferable to the symbol or number wheel.
  • the coding rotary switch 1 shown in FIGS. 1 to 4 consists essentially of a housing 10, a symbol or digit carrier 35, a circuit board 65 and a switching mechanism 70 arranged in the housing 10, which has a ratchet wheel 25, a gear 30 and two mirror images , includes locking levers 40 and 50 which are arranged symmetrically with respect to the axis of symmetry IV-IV and can be actuated by a switching element 20 which is rotatably mounted laterally on the one housing wall.
  • FIG. 1 shows a sectional view of the rotary coding switch 1 and one can see the housing 10 formed from an end wall 11, a rear wall 12, an upper and lower wall 13 and 14 and a side wall 15 and preferably made of plastic.
  • the housing On the side opposite the side wall 15 the housing has an opening, not specified, which is closed by means of the circuit board 65 after the switching mechanism has been installed.
  • the two walls 13 and 14 and the Front 11 of the housing 10 are adapted in the illustrated embodiment in the area of the dial 35 of the outer contour of the dial.
  • a window 16 is also provided on the end face 11, through which a number 35 ′ or a symbol attached to the end face 36 of the number wheel can be read.
  • the locking gear 25, which is provided with evenly distributed circumferential recesses 26 and with locking cams 26 ', which have an arc-shaped flank profile 26 ", is preferably formed in one piece with the gear 30 and, as shown in more detail in FIG. 4, on an inside of the housing Shaped shoulder 18 is formed on side wall 15.
  • gear wheel 30 is shown partially cut away in Fig. 1.
  • Numerical gear 35 which is rotatably mounted on circuit board 65 by a pin 38, is connected by internal teeth 37 to external teeth 31 of gear wheel 30 1.
  • the two detent levers 40 and 50 which are symmetrically arranged symmetrically to one another and are angled, are movably supported at one end in a bearing element 17 formed on the inside of the housing side wall 15.
  • each detent lever is closed Storage one by one n journal 46 or 56 rotatable roller 45 or 55 is fork-shaped.
  • the rollers 45 and 55 mounted on the detent levers 40 and 50 are pressed or pulled in a contacting manner by a tension spring 60 fastened to the detent levers in a manner not shown in the respective detent recess 26 of the detent wheel 25.
  • the coding rotary switch 1 is shown in view and the switching element 20, which is mounted on the side wall 15 and is provided, for example, with five switching fingers 21 and rotatable about an axle pin 27 in the direction of the arrow 2, can be seen, which corresponds to the switching fingers 21 with the detent cams 26 ' arranged and schematically shown ratchet wheel 25, the likewise schematically illustrated gear 30 and a portion of the circuit board 65.
  • FIG. 3 a part of the operating side of the rotary coding switch is shown in the front view according to FIG. 2, and the front wall 11 of the housing 10, the window 16, a part of the number wheel 35 with a number 35 'and the switching element 20 arranged on the side of the housing can be seen .
  • Fig. 4 shows the rotary encoder switch in section along the line IV-IV in Fig. 1 and one recognizes the essentially through the front side 11, the rear wall 12 and through the side wall 15 box-shaped housing 10, which on the opposite side of the wall 15 is essentially closed by the circuit board 65.
  • the switching element 20 On the outside of the wall 15, the switching element 20 is arranged in a recess 9, which is non-rotatably connected to the journal 27 by a locking washer 28 in a manner not shown.
  • the ratchet wheel 25 resting on the shoulder 18 and the toothed wheel 30 are also connected in a manner not shown to the axle journal 27 rotatably mounted in the shoulder 18.
  • 4 also shows the digit wheel 35 which is rotatably mounted with the journal 38 on the circuit board 65 and which engages with the internal toothing 37 with the external toothing 31 of the gear 30.
  • a groove 19 is provided in a known manner on the outside of the wall 15, which, as shown in more detail in FIG. 2, runs essentially parallel to the recess 9, which is provided for the switching element 20 and is largely circular.

Abstract

A stepping or indexing mechanism for an encoding rotary or multi-position switch is arranged within a switch housing. The stepping mechanism comprises a symbol or numeric wheel, two substantially mirror-image and mutually symmetrically arranged locking or latching levers, a locking or latching wheel, a gear meshing with the symbol or numeric wheel as well as a switching or indexing element arranged laterally at the switch housing. The locking or latching levers are movably mounted at one end in a bearing or support element and at the other end are structured for the rotatable mounting of a related roller. The latching levers are drawn together with the rollers by a tension spring or equivalent structure into latching or locking recesses of the locking wheel. For the switching operation the locking levers are deflected against the restoring force of the spring out of the locking recesses, and the rollers then slide along locking or latching cams or dogs provided with arcuate-shaped flank profiles. The stepping or indexing mechanism insures for an exact switch or indexing operation which can be positively transmitted to the symbol or numeric wheel.

Description

Die Erfindung betrifft ein Schaltwerk für einen Codierdrehschalter, welches in einem Gehäuse angeordnet ist und ein um einen ersten Achszapfen drehbar gelagertes Symbol- oder Ziffernrad, ein Schaltelement sowie eine im wesentlichen aus einem Rastenrad und mindestens einem federelastisch am Rastenrad anliegenden Rastenhebel gebildete Rastvorrichtung umfaßt, wobei das Rastenrad mehrere durch gleichmäßig am Umfang verteilt angeordnete Rastnocken mit bogenförmigem Flankenprofil gebildete Rastausnehmungen aufweist.The invention relates to a switching mechanism for a rotary coding switch, which is arranged in a housing and comprises a symbol or number wheel rotatably mounted about a first axle journal, a switching element and a locking device essentially formed from a ratchet wheel and at least one spring-loaded latching lever resting on the ratchet wheel, wherein the indexing wheel has a plurality of indexing recesses formed by indexing cams with an arcuate flank profile that are uniformly distributed on the circumference.

Aus der FR-A-2 188 277 ist ein solches Schaltwerk für einen Codierdrehschalter bekannt, welches in einem Gehäuse angeordnet ist und ein drehbar gelagertes Nummernrad, ein Kupplungselement sowie ein gegen die Rückstellkraft einer Feder drehbar gelagertes Schaltelement umfaßt, das mit dem Kupplungselement durch stirnzahnartig ausgebildete Kupplungsteile wirkverbunden ist. Bei einer Variante ist das Daumenrad mit einer Kegel-Innenverzahnung versehen und mit einem entsprechend zugeordneten und durch die Rückstellkraft einer Feder mit der Kegel-Innenverzahnung im Eingriff stehenden Kegelzahnrad wirkverbunden. Der Drehung des Daumenrades wirkt ein am Gehäuse federelastisch befestigter Rasterkörper entgegen, welcher mit einer Rolle in eine gerippte, ringförmige Fläche des Daumenrades eingreift. Das Schaltwerk dieses Drehschalters ist so ausgebildet, daß das Nummernrad ausschließlich zwischen den einzelnen Anzeigepositionen in entgegengesetzter Richtung gedreht werden kann.From FR-A-2 188 277 such a switching mechanism for a rotary coding switch is known, which is arranged in a housing and comprises a rotatably mounted number wheel, a coupling element and a switching element rotatably mounted against the restoring force of a spring, which with the coupling element by end teeth trained coupling parts is operatively connected. In one variant, the thumbwheel is provided with an internal bevel gear and is operatively connected to a correspondingly assigned bevel gear which is in engagement with the internal bevel gear by the restoring force of a spring. The rotation of the thumb wheel is counteracted by a resiliently attached raster body on the housing, which engages with a roller in a ribbed, annular surface of the thumb wheel. The rear derailleur of this rotary switch is designed so that the number wheel can only be turned between the individual display positions in the opposite direction.

Aus der US-A-3 195 358 ist ferner ein Schaltwerk für einen Codierdrehschalter mit einstückig ausgebildetem Betätigungsorgan bekannt, welches ein Ziffern-, Schalt- und Rastenteil umfaßt. Bei diesem Schaltwerk hat das auf einer Achse drehbar gelagerte Betätigungsorgan ein zylindrisches, mit Zahlen versehenes erstes Teilstück, ein mit Rastnocken und Rastausnehmungen versehenes zweites Teilstück sowie ein mit mehreren Schaltfingern versehenes drittes Teilstück. Die für den Schaltvorgang erforderliche Positionierung beziehungsweise Rastung wird bei diesem Schaltwerk durch eine federelastisch an dem als Rastenrad ausgebildeten dritten Teilstück anliegenden und gegen die Rückstellkraft einer Feder auslenkbaren Rolle erreicht.From US-A-3 195 358 a switching mechanism for a rotary coding switch with a one-piece actuator is known, which comprises a numerical, switching and latching part. In this rear derailleur, the actuating member, which is rotatably mounted on an axis, has a cylindrical, numbered first section, a second section provided with locking cams and recesses, and a third section provided with a plurality of shift fingers. The positioning or detent required for the switching process is achieved in this rear derailleur by a spring resiliently against the third section designed as a ratchet wheel and deflectable against the restoring force of a spring.

Eine mit einem Rastenrad und zwei spiegelbildlich symmetrisch zueinander angeordneten Rastenhebeln gebildete Rastvorrichtung ist jeweils aus der DE-C-1186124 und der US-A-3 133 164 bekannt. Die Rastenhebel sind an dem einen mit dem Rastenrad im Eingriff stehenden und gegen die Rückstellkraft einer Feder auslenkbaren Ende entweder abgerundet ausgebildet oder weisen eine drehbar gelagerte Rolle auf.A latching device formed with a ratchet wheel and two latching levers arranged symmetrically to one another is known from DE-C-1186124 and US-A-3 133 164, respectively. The detent levers are either rounded at the one end which is in engagement with the detent wheel and can be deflected against the restoring force of a spring, or have a rotatably mounted roller.

Der Erfindung liegt die Aufgabe zugrunde, für einen Drehschalter nach dem Oberbegriff des Anspruchs 1 ein vorwärts und rückwärts schaltbares Schaltwerk und eine Rastvorrichtung zu schaffen und derart zueinander anzuordnen, daß die Schalt- und Rastelemente einen auf das Symbol- oder Ziffernrad exakt übertragbaren Schaltvorgang gewährleisten.The invention has for its object to provide for a rotary switch according to the preamble of claim 1, a forward and reverse switchable switchgear and a locking device and to arrange each other such that the switching and locking elements ensure a switching process exactly transferable to the symbol or number wheel.

Diese Forderung soll auch bei erschwerten Umweltbedingungen, das heißt Bedienbarkeit mit Handschuhen, gewährleistet sein.This requirement should also be guaranteed in difficult environmental conditions, i.e. operability with gloves.

Erfindungsgemäß wird diese Aufgabe durch folgende Merkmale gelöst:

  • a) auf der Gehäuse-Symmetrieachse ist im Abstand zu dem um den ersten Achszapfen drehbaren Symbol- oder Ziffernrad das um einen zweiten Achszapfen drehbar gelagerte Schaltelement, das Rastenrad sowie ein Zahnrad angeordnet,
  • b) die um den zweiten Achszapfen drehbaren Teile sind miteinander wirkverbunden,
  • c) das Zahnrad steht mit einer am inneren Umfang des Symbol- oder Ziffernrades vorgesehenen Verzahnung im Eingriff, und
  • d) die Rastvorrichtung weist zwei an sich bekannte Rastenhebel auf, die mit dem einen Ende in dem Gehäuse gelagert und mit dem anderen Ende je mit einer drehbar gelagerten Rolle am Rastenrad anliegen und bei jedem Schaltschritt gegen die Rückstellkraft einer Feder auslenkbar sind.
According to the invention, this object is achieved by the following features:
  • a) on the axis of symmetry of the housing, at a distance from the symbol or number wheel rotatable about the first axle journal, the switching element rotatably mounted about a second axle journal, the ratchet wheel and a gearwheel are arranged,
  • b) the parts which can be rotated about the second axle journal are operatively connected to one another,
  • c) the gearwheel engages with a toothing provided on the inner circumference of the symbol or number wheel, and
  • d) the locking device has two locking levers known per se, which are supported at one end in the housing and each rest at the other end with a rotatably mounted roller on the locking wheel and can be deflected against the restoring force of a spring in each switching step.

Die Erfindung wird nachstehend anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung näher beschrieben. Es zeigt

  • Fig. 1 einen in Schnittansicht dargestellten Codierdrehschalter,
  • Fig. 2 den Codierdrehschalter gemäß Fig. 1 mit Blickrichtung auf das Schaltelement,
  • Fig. 3 in Frontansicht die Bedienungsseite des Codierdrehschalters gemäß Fig. 2, und
  • Fig. 4 einen in größerem Maßstab dargestellten Schnitt gemäß der Linie IV-IV in Fig. 1.
The invention is described below using an exemplary embodiment with reference to the drawing. It shows
  • 1 is a rotary encoder shown in sectional view,
  • 2 the coding rotary switch according to FIG. 1 with a view of the switching element,
  • Fig. 3 is a front view of the operator side of the rotary encoder switch according to FIG. 2, and
  • 4 shows a section shown on a larger scale along the line IV-IV in FIG. 1st

Der in den Fig. 1 bis 4 dargestellte Codierdrehschalter 1 besteht im wesentlichen aus einem Gehäuse 10, einem Symbol- oder Ziffernträger 35, einer Stromkreisplatte 65 sowie einem in dem Gehäuse 10 angeordneten Schaltwerk 70, welches ein Rastenrad 25, ein Zahnrad 30 sowie zwei spiegelbildlich, symmetrisch bezüglich der Symmetrieachse IV-IV zueinander angeordnete Rastenhebel 40 und 50 umfaßt und von einem seitlich an der einen Gehäusewand drehbar gelagerten Schaltelement 20 betätigbar ist.The coding rotary switch 1 shown in FIGS. 1 to 4 consists essentially of a housing 10, a symbol or digit carrier 35, a circuit board 65 and a switching mechanism 70 arranged in the housing 10, which has a ratchet wheel 25, a gear 30 and two mirror images , includes locking levers 40 and 50 which are arranged symmetrically with respect to the axis of symmetry IV-IV and can be actuated by a switching element 20 which is rotatably mounted laterally on the one housing wall.

Fig. 1 zeigt in Schnittansicht den Codierdrehschalter 1 und man erkennt das aus einer Stirnwand 11, einer Rückwand 12, einer oberen und unteren Wand 13 und 14 sowie einer Seitenwand 15 gebildete und vorzugsweise aus Kunststoff hergestellte Gehäuse 10. Auf der der Seitenwand 15 gegenüberliegenden Seite weist das Gehäuse eine nicht näher bezeichnete Öffnung auf, welche nach dem Einbau des Schaltwerkes mittels der Stromkreisplatte 65 verschlossen wird. Die beiden Wände 13 und 14 sowie die Stirnseite 11 des Gehäuses 10 sind im dargestellten Ausführungsbeispiel im Bereich des Ziffernrades 35 der äußeren Kontur des Ziffernrades angepaßt. An der Stirnseite 11 ist außerdem ein Fenster 16 vorgesehen, durch welches eine auf der Stirnseite 36 des Ziffernrades angebrachte Zahl 35' oder aber ein Symbol ablesbar ist. Das mit gleichmäßig am Umfang verteilt angeordneten Rastausnehmungen 26 sowie mit Rastnocken 26', welche ein bogenförmig ausgebildetes Flankenprofil 26" aufweisen, versehene Rastenrad 25 ist mit dem Zahnrad 30 vorzugsweise einstückig ausgebildet und wie in Fig. 4 näher dargestellt auf einem innenseitig an der Gehäuse-Seitenwand 15 angeformten Absatz 18 gelagert. Zur besseren Darstellung des Rastenrades 25 ist in Fig. 1 das Zahnrad 30 teilweise aufgeschnitten dargestellt. Das um einen Zapfen 38 drehbar an der Stromkreisplatte 65 gelagerte Ziffernrad 35 ist durch eine Innenverzahnung 37 mit der Außenverzahnung 31 des Zahnrades 30 wie in Fig. 1 im Ausschnitt näher dargestellt wirkverbunden. Die beiden spiegelbildlich symmetrisch zueinander angeordneten und abgewinkelt ausgebildeten Rastenhebel 40 und 50 sind mit dem einen Ende in einem an der Innenseite der GehäuseSeitenwand 15 angeformten Lagerelement 17 beweglich gelagert. Am anderen Ende ist jeder Rastenhebel zur Lagerung einer um einen Achszapfen 46 bzw. 56 drehbaren Rolle 45 bzw. 55 gabelförmig ausgebildet. Die an den Rastenhebeln 40 und 50 gelagerten Rollen 45 und 55 werden durch eine an den Rastenhebeln in nicht näher dargestellter Weise befestigte Zugfeder 60 kontaktierend in die jeweilige Rastausnehmung 26 des Rastenrades 25 gedrückt beziehungsweise gezogen.1 shows a sectional view of the rotary coding switch 1 and one can see the housing 10 formed from an end wall 11, a rear wall 12, an upper and lower wall 13 and 14 and a side wall 15 and preferably made of plastic. On the side opposite the side wall 15 the housing has an opening, not specified, which is closed by means of the circuit board 65 after the switching mechanism has been installed. The two walls 13 and 14 and the Front 11 of the housing 10 are adapted in the illustrated embodiment in the area of the dial 35 of the outer contour of the dial. A window 16 is also provided on the end face 11, through which a number 35 ′ or a symbol attached to the end face 36 of the number wheel can be read. The locking gear 25, which is provided with evenly distributed circumferential recesses 26 and with locking cams 26 ', which have an arc-shaped flank profile 26 ", is preferably formed in one piece with the gear 30 and, as shown in more detail in FIG. 4, on an inside of the housing Shaped shoulder 18 is formed on side wall 15. For better illustration of ratchet wheel 25, gear wheel 30 is shown partially cut away in Fig. 1. Numerical gear 35, which is rotatably mounted on circuit board 65 by a pin 38, is connected by internal teeth 37 to external teeth 31 of gear wheel 30 1. The two detent levers 40 and 50, which are symmetrically arranged symmetrically to one another and are angled, are movably supported at one end in a bearing element 17 formed on the inside of the housing side wall 15. At the other end, each detent lever is closed Storage one by one n journal 46 or 56 rotatable roller 45 or 55 is fork-shaped. The rollers 45 and 55 mounted on the detent levers 40 and 50 are pressed or pulled in a contacting manner by a tension spring 60 fastened to the detent levers in a manner not shown in the respective detent recess 26 of the detent wheel 25.

In Fig. 2 ist der Codierdrehschalter 1 in Ansicht dargestellt und man erkennt das an der Seitenwand 15 gelagerte und beispielsweise mit fünf Schaltfingern 21 versehene und um einen Achszapfen 27 in Pfeilrichtung 2 drehbare Schaltelement 20, das mit den Rastennocken 26' korrespondierend zu den Schaltfingern 21 angeordnete und schematisch dargestellte Rastenrad 25, das ebenfalls schematisch dargestellte Zahnrad 30 sowie ein Teilstück der Stromkreisplatte 65.2, the coding rotary switch 1 is shown in view and the switching element 20, which is mounted on the side wall 15 and is provided, for example, with five switching fingers 21 and rotatable about an axle pin 27 in the direction of the arrow 2, can be seen, which corresponds to the switching fingers 21 with the detent cams 26 ' arranged and schematically shown ratchet wheel 25, the likewise schematically illustrated gear 30 and a portion of the circuit board 65.

In Fig. 3 ist in Frontansicht gemäß Fig. 2 ein Teilstück der Bedienungsseite des Codierdrehschalters dargestellt und man erkennt die Stirnwand 11 des Gehäuses 10, das Fenster 16, ein Teilstück des Ziffernrades 35 mit einer Ziffer 35' sowie das seitlich am Gehäuse angeordnete Schaltelement 20.In FIG. 3, a part of the operating side of the rotary coding switch is shown in the front view according to FIG. 2, and the front wall 11 of the housing 10, the window 16, a part of the number wheel 35 with a number 35 'and the switching element 20 arranged on the side of the housing can be seen .

Fig. 4 zeigt den Codierdrehschalter im Schnitt gemäß der Linie IV-IV in Fig. 1 und man erkennt das im wesentlichen durch die Stirnseite 11, die Rückwand 12 sowie durch die Seitenwand 15 kastenförmig ausgebildete Gehäuse 10, welches auf der der Wand 15 gegenüberliegenden Seite im wesentlichen durch die Stromkreisplatte 65 verschlossen ist. An der Außenseite der Wand 15 ist in einer Ausnehmung 9 das Schaltelement 20 angeordnet, welches durch eine Sicherungsscheibe 28 in nicht näher dargestellter Weise mit dem Achszapfen 27 drehfest verbunden ist. Das auf dem Absatz 18 aufliegende Rastenrad 25 sowie das Zahnrad 30 sind ebenfalls in nicht näher dargestellter Weise mit dem in dem Absatz 18 drehbar gelagerten Achszapfen 27 drehfest verbunden. Weiterhin erkennt man in Fig. 4 das mit dem Achszapfen 38 an der Stromkreisplatte 65 drehbar gelagerte Ziffernrad 35, welches mit der Innenverzahnung 37 mit der Außenverzahnung 31 des Zahnrades 30 im Eingriff steht.Fig. 4 shows the rotary encoder switch in section along the line IV-IV in Fig. 1 and one recognizes the essentially through the front side 11, the rear wall 12 and through the side wall 15 box-shaped housing 10, which on the opposite side of the wall 15 is essentially closed by the circuit board 65. On the outside of the wall 15, the switching element 20 is arranged in a recess 9, which is non-rotatably connected to the journal 27 by a locking washer 28 in a manner not shown. The ratchet wheel 25 resting on the shoulder 18 and the toothed wheel 30 are also connected in a manner not shown to the axle journal 27 rotatably mounted in the shoulder 18. 4 also shows the digit wheel 35 which is rotatably mounted with the journal 38 on the circuit board 65 and which engages with the internal toothing 37 with the external toothing 31 of the gear 30.

Zum Abdichten mehrerer in Reihe zusammengesetzter Codierschalter ist in bekannter Weise an der Außenseite der Wand 15 eine Nut 19 vorgesehen, welche wie in Fig. 2 näher dargestellt im wesentlichen parallel zu der für das Schaltelement 20 vorgesehenen und weitgehend kreisförmig ausgebildeten Ausnehmung 9 verläuft.To seal a plurality of coding switches assembled in series, a groove 19 is provided in a known manner on the outside of the wall 15, which, as shown in more detail in FIG. 2, runs essentially parallel to the recess 9, which is provided for the switching element 20 and is largely circular.

Claims (3)

1. A switch mechanism (70) for a rotary selector switch (1), which is arranged in a housing (10) and includes a symbol- or number wheel (35) mounted rotatably round a first axle journal (38), a switching element (20) and a detent device formed substantially of a detent wheel (25) and at least one detent lever (45, 55) abutting in resilient manner on the detent wheel, wherein the detent wheel (25) has a plurality of detent recesses (26) formed by detent cams (26'), with arcuate edge profiles (26"), distributed uniformly on the circumference, characterized by the following features:
a) on the housing axis of symmetry (IV-IV) there is arranged at a distance from the symbol- or number wheel (35) rotatable round the first axle journal (38), the switch element (20) which is rotatably mounted round a second axle journal (27), and a gear wheel (30),
b) the parts (20, 25, 30) rotatable round the second axle journal (27) are operatively connected to one another,
c) the gear wheel (30) is in engagement with cogs (37) provided on the inner circumference of the symbol- or number wheel (35), and
d) the detent device has two detent levers (40, 50) which are mounted with one end in the housing (10), and with the other end abut respectively with a rotatably mounted roller (45, 55) against the detent wheel (25), and with each switching step these detent levers can be deflected against the restoring force of a spring (60).
2. A switch mechanism according to claim 1, characterized in that the detent wheel (25) and the gear wheel (30) are constructed as a one- piece structural unit, which has on one side an outer cogging (31) and on the other side is mounted with a recess on a section (18) constructed frusto-conically and moulded on the inner side of the housing, and is rotatable round the second journal (27).
3. A switch mechanism according to claim 1, characterized in that the switch element (20) has a number of shift fingers (21) arranged to be distributed uniformly on the circumference, and the detent wheel (25) has correspondingly arranged an equal number of detent cams (26').
EP81107761A 1980-11-10 1981-09-30 Operating mechanism for a rotating encoding switch Expired EP0051736B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81107761T ATE9520T1 (en) 1980-11-10 1981-09-30 REAR DERAILLEUR FOR A CODE ROTARY SWITCH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH8314/80 1980-11-10
CH831480 1980-11-10

Publications (2)

Publication Number Publication Date
EP0051736A1 EP0051736A1 (en) 1982-05-19
EP0051736B1 true EP0051736B1 (en) 1984-09-19

Family

ID=4338421

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81107761A Expired EP0051736B1 (en) 1980-11-10 1981-09-30 Operating mechanism for a rotating encoding switch

Country Status (4)

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US (1) US4405842A (en)
EP (1) EP0051736B1 (en)
AT (1) ATE9520T1 (en)
DE (1) DE3166188D1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5231892A (en) * 1992-07-20 1993-08-03 Deere & Company Hitch control interface assembly
JP2005032450A (en) * 2003-07-07 2005-02-03 Matsushita Electric Ind Co Ltd Switching device
KR100821956B1 (en) 2003-07-18 2008-04-15 국방과학연구소 Aircraft Flap Control Handle Unit with A Detent Mechanism
CN113078016B (en) * 2021-04-01 2022-05-20 长沙万龙科技有限公司 Safety switch for realizing power-on or power-off by two intermittent rotations

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1014627B (en) * 1955-11-05 1957-08-29 Eberle & Co Appbau Ges Snap lock for rotary switch
GB961165A (en) * 1959-09-04 1964-06-17 Infranor Sa Improvements in or relating to rotary selector switches
US3133164A (en) * 1960-08-12 1964-05-12 Cutler Hammer Inc Reversing drum switch
US3195358A (en) * 1962-12-14 1965-07-20 North Atlantic Industries Sealed housing for electrical apparatus
US3229052A (en) * 1963-05-24 1966-01-11 Westinghouse Electric Corp Rotary switch construction with rotor contact position limiting means
US3499127A (en) * 1968-12-26 1970-03-03 Cherry Electrical Prod Thumbwheel type switch
US3958087A (en) * 1969-09-04 1976-05-18 Becton, Dickinson Electronics Company Switch structure
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
GB1399577A (en) * 1972-06-13 1975-07-02 Amp Inc Resettable electric switch
US3818155A (en) * 1972-06-13 1974-06-18 Amp Inc Zero setting mechanism for plural ganged thumbwheel counter switches
US4257283A (en) * 1978-03-17 1981-03-24 Contraves Ag Stepping mechanism for a multi-position switch

Also Published As

Publication number Publication date
ATE9520T1 (en) 1984-10-15
DE3166188D1 (en) 1984-10-25
US4405842A (en) 1983-09-20
EP0051736A1 (en) 1982-05-19

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