EP0265883B1 - Rotary switch - Google Patents

Rotary switch Download PDF

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Publication number
EP0265883B1
EP0265883B1 EP87115657A EP87115657A EP0265883B1 EP 0265883 B1 EP0265883 B1 EP 0265883B1 EP 87115657 A EP87115657 A EP 87115657A EP 87115657 A EP87115657 A EP 87115657A EP 0265883 B1 EP0265883 B1 EP 0265883B1
Authority
EP
European Patent Office
Prior art keywords
rotor
rotary switch
stator
switch
shank
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
EP87115657A
Other languages
German (de)
French (fr)
Other versions
EP0265883A2 (en
EP0265883A3 (en
Inventor
Günter Schwab
Helmut Reiber
Rolf Stapelfeldt
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.)
Alcatel Lucent Deutschland AG
Alcatel Lucent NV
Original Assignee
Alcatel SEL AG
Alcatel NV
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
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Application filed by Alcatel SEL AG, Alcatel NV filed Critical Alcatel SEL AG
Priority to AT87115657T priority Critical patent/ATE86786T1/en
Publication of EP0265883A2 publication Critical patent/EP0265883A2/en
Publication of EP0265883A3 publication Critical patent/EP0265883A3/en
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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
    • H01H19/585—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch provided with printed circuit contacts
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G25/00—Other details or appurtenances of control mechanisms, e.g. supporting intermediate members elastically
    • G05G25/04—Sealing against entry of dust, weather or the like
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/20—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch wherein an auxiliary movement thereof, or of an attachment thereto, is necessary before the main movement is possible or effective, e.g. for unlatching, for coupling

Definitions

  • the present invention relates to a rotary switch according to the preamble of claim 1.
  • Such rotary switches are known as so-called rotary switches.
  • the structure is similar to that described in DE-B-26 59 084 or DE-A-23 56 500. There, however, the actuation button rests on the stator, which is larger in diameter, whereas in the case of the knob rotary switches, this also overlaps the stator, which is somewhat smaller in diameter, on the side edges.
  • a waterproof, rotatable control button arrangement which can be used in such a way that a rotary switch can be formed.
  • the control button arrangement the outer end face of which is provided with a push-button arrangement, is itself rotatably held as a unitary component in a bearing opening in the front panel.
  • the inner face of the same is provided with a claw coupling, via which an axis of rotation of a potentiometer with an integrated limit switch can be actuated.
  • the bearing bore of the front plate and the assignment of the potentiometer must be precisely coordinated with one another during final assembly.
  • the watertight implementation of the control button arrangement through the bearing hole in the front panel is thereby achieves that a section of the control button arrangement designed as a bearing shaft is provided with a circumferential groove into which a sealing ring is inserted.
  • the bearing must extend over a certain minimum length, ie either the front plate must be made of a correspondingly thick material or that a separate bearing point must be used or formed, for example, by pulling or stamping.
  • a so-called knob rotary switch is to be designed so that it is watertight, in particular watertight.
  • the stator 4 has a disk-shaped support section 7, hereinafter referred to as the support flange 7, and a shaft 3.
  • the latter is expediently designed as a screw attachment, which can be inserted into a front plate 2 (for example a device which is watertight against water pressure) and can be screwed onto it by means of a nut 6.
  • the bottom 8 lies on the top 9 of the front panel.
  • the rotor 5 is also designed as an operating button.
  • a circumferential groove 13 is provided in the peripheral wall 12 of the support flange 7, in which an elastic sealing ring 14 is also inserted. The latter protrudes beyond the peripheral wall 12.
  • the inner wall 15 of the support flange 7 overlapping side wall 16 of the rotor 5 is so small from the peripheral wall 12 of the support flange 7 that it presses against the sealing ring 14 and thus a water-tight seal between the inner wall 15 and the peripheral wall 12 is achieved.
  • the inner wall 15 slides on the sealing ring 14 when the rotor 5 is rotated.
  • a lubricant is expediently provided between the inner wall 15 and the sealing ring 14.
  • the two sealing rings 11 and 14 achieve a completely sealed switch and a seal from the switch to the inside of a device.
  • the shaft 3 and the support flange 7 can be made of metal.
  • the shaft 3 then has a bore 18 into which a mushroom-shaped contact carrier 19 made of insulating material with its axis extension 20 is inserted.
  • the attachment is made by Screwing, gluing, pressing or shrinking the stator 4 onto the axle extension 20 in such a way that a connection that is watertight is created.
  • a transverse bore 21 (FIG. 1) or a groove 22 (FIG. 2) is provided which, in the case of a two-part design, is provided either in the support flange 7 or in the insulating contact carrier 19 and in which a compression spring 23 and a detent ball 24 are guided .
  • the latter snaps in a manner known per se with a locking ring 25 on the inner wall 15 of the side wall 16 of the rotor 5.
  • the transverse bore 21 or groove 22 can also be provided in the rotor 5 and the locking ball 24 can then press against the end wall 57 of a stator part 58, which carries a locking ring 25 (see. Fig. 5).
  • stator 4 is made of insulating material or if an insulating contact carrier 19 is used, fixed contact connections 26 are formed in the shaft 3 or the axle extension 20, which are connected to fixed contacts 28 accessible on the surface 27, or the fixed contact connections 26 and the fixed contacts 28 are formed as an angled unit .
  • the movable contacts 29 are attached to the inside 30 of the rotor cover 31 and can e.g. Connect a center contact 28.1 and an external contact 28.2.
  • a ring 33 is glued to the lower edge 32 of the side wall 16 with an inwardly extending ring flange 34 sliding on the support flange 7.
  • the annular flange 34 expediently engages in an annular recess 35 in the support flange 7.
  • a protruding edge of the side wall 16 of the rotor 5 can also be formed inwards by hot deformation, and the ring flange 34 can thus be formed.
  • a retaining ring disk 37 can be attached to the edge 36 of the rotor 5 and can be fastened, for example, by means of hot deformation of protruding edge parts 59.
  • the retaining ring disk 37 can advantageously be designed as a coding disk in that it is provided with at least one stop which can come into operative connection with at least one counter-stop of the support flange 7.
  • a locking cam 38 can be formed by means of at least one resilient intermediate member 39, which is advantageously designed as a spring leg.
  • a switch is described in which the retaining ring disk 37 is designed as a coding disk and the rotor 5 can be pulled up from the stator 4 by a small stroke.
  • a stop 40 of the rotor 5 can be disengaged from a shoulder 41 of the stator 4, so that the rotor 5 can be rotated even further if the stop is overcome after the rotor 5 has been lifted.
  • the stop 40 can also be provided on the retaining ring disk 37.
  • the stator 4 then has an extension 41.1 in its area.
  • the rotor 5 can also be fastened according to FIG. 12 by means of an axis 42 formed on it, which is inserted from one side through a bore 43 in the contact carrier 19 and screwed on the other side.
  • a rotary pull switch in a pressure-water-tight design can also be produced, as shown in FIG. 13.
  • the bore 43 in the contact carrier 19 has an extension 44 for inserting a compression spring 45, which between the Stator stop 46 and a washer 47 is clamped. The latter is held by a screw 48 which can be screwed into the axis 42 from below.
  • a rotor head 50 is connected to the rotor 5, optionally with the interposition of a spring washer or sliding washer 49, by means of positive locking for rotary movements and sliding fit for axial movements (pull) of the rotor 5.
  • a shoulder 41 cf. FIGS. 10 and 11
  • the stator 4 which limits the rotary movement of the rotor 5 can be overcome, so that the rotor 5 can be rotated even further.
  • the rotor head 50 is replaced by e.g. reshaped segments 52 held.
  • the rotor head 50 contains the movable contacts 29, which are pressed onto the fixed contacts 28 by means of a spring and are designed as a rocker switch Support surface 53 is preferably attached in a watertight manner by gluing or pressing.
  • the thread overlap area 55 of the nut 6 required for fastening the switch can be accommodated for the most part within the thickness of the front plate 2.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Switches With Compound Operations (AREA)
  • Push-Button Switches (AREA)

Abstract

A rotary switch, adapted to be secured to a panel, comprises a stator having a bearing flange provided with a cylindrical side wall and an underside; a circumferential groove provided in the side wall and an annular groove provided in the underside; and a rotor extending over the bearing flange and having a cylindrical side wall surrounding the cylindrical side wall of the bearing flange. The rotor is rotatably supported on and relative to the stator. There are further provided a stationary contact mounted in the stator; a movable contact carried by the rotor for displacement relative to the stationary contact upon turning of the rotor; and a first sealing ring received in the circumferential groove and projecting radially outwardly from the cylindrical side wall of the bearing flange. The first sealing ring sealingly and slidably engages the cylindrical side wall of the rotor. The rotary switch further has a second sealing ring received in the annular groove and projecting outwardly from the underside of the bearing flange.

Description

Die vorliegende Erfindung bezieht sich auf einen Drehschalter gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to a rotary switch according to the preamble of claim 1.

Derartige Drehschalter sind als sogenannte Knopf-Drehschalter bekannt. Der Aufbau ist denen ähnlich wie er in der DE-B-26 59 084 oder der DE-A-23 56 500 beschrieben ist. Dort liegt jedoch der Betätigungsknopf auf dem im Durchmesser größeren Stator auf, wogegen bei den Knopf-Drehschaltern dieser den im Durchmesser etwas kleineren Stator auch an den Seitenkanten noch übergreift.Such rotary switches are known as so-called rotary switches. The structure is similar to that described in DE-B-26 59 084 or DE-A-23 56 500. There, however, the actuation button rests on the stator, which is larger in diameter, whereas in the case of the knob rotary switches, this also overlaps the stator, which is somewhat smaller in diameter, on the side edges.

Weiterhin ist aus der US-A-4 439 654 eine wasserdichte, drehbare Steuerknopfanordnung bekannt, die derart verwendbar ist, daß ein Drehschalter gebildet werden kann. Hierzu ist die Steuerknopfanordnung, deren außen befindliche Stirnseite mit einer Drucktastenanordnung versehen ist, als einheitliches Bauelement selbst drehbar in einer Lageröffnung der Frontplatte gehaltert. Die innere Stirnseite derselben ist mit einer Klauenkupplung versehen, über die eine Drehachse eines Potentiometers mit integriertem Endschalter betätigbar ist. Hier müssen also bei der Endmontage die Lagerbohrung der Frontplatte und die Zuordnung des Potentiometers genau aufeinander abgestimmt sein. Die wasserdichte Druchführung der Steuerknopfanordnung durch die Lagerbohrung der Frontplatte ist dadurch erreicht, daß ein als Lagerschaft ausgebildeter Abschnitt der Steuerknopfanordnung mit einer umlaufenden Nut versehen ist, in die ein Dichtring eingesetzt ist. Aus diesem Grund, aber auch zur Erzielung einer guten Lagerung, muß sich das Lager über eine bestimmte Mindestlänge erstrecken, d.h. daß entweder die Frontplatte aus einem entsprechend dicken Material bestehen muß oder daß eine gesonderte Lagerstelle eingesetzt oder z.B. durch Ziehen oder Prägen gebildet werden muß.Furthermore, from US-A-4 439 654 a waterproof, rotatable control button arrangement is known which can be used in such a way that a rotary switch can be formed. For this purpose, the control button arrangement, the outer end face of which is provided with a push-button arrangement, is itself rotatably held as a unitary component in a bearing opening in the front panel. The inner face of the same is provided with a claw coupling, via which an axis of rotation of a potentiometer with an integrated limit switch can be actuated. Here, the bearing bore of the front plate and the assignment of the potentiometer must be precisely coordinated with one another during final assembly. The watertight implementation of the control button arrangement through the bearing hole in the front panel is thereby achieves that a section of the control button arrangement designed as a bearing shaft is provided with a circumferential groove into which a sealing ring is inserted. For this reason, but also to achieve good storage, the bearing must extend over a certain minimum length, ie either the front plate must be made of a correspondingly thick material or that a separate bearing point must be used or formed, for example, by pulling or stamping.

Mit der vorliegenden Erfindung soll ein sogenannter Knopf-Drehschalter so ausgebildet werden, daß er wasserdicht, insbesondere druckwasserdicht ist.With the present invention, a so-called knob rotary switch is to be designed so that it is watertight, in particular watertight.

Diese Aufgabe wird durch die im Kennzeichen des Anspruchs 1 angegebenen Merkmale gelöst.This object is achieved by the features specified in the characterizing part of claim 1.

Hierdurch wird nicht nur eine wasserdichte Ausführung des Schalters selbst erreicht, sondern auch das Eindringen von Wasser zwischen Schalter und Einbauplatte vermieden, so daß kein Wasser in ein Gerät über den Schalter bzw. die Schalteranordnung eindringen kann.This not only achieves a watertight design of the switch itself, but also prevents water from penetrating between the switch and the mounting plate, so that no water can penetrate into a device via the switch or the switch arrangement.

Weitere vorteilhafte Einzelheiten der Erfindung sind in den Unteransprüchen angegeben und nachfolgend anhand der in den Zeichnungen veranschaulichten Ausführungsbeispiele beschrieben. Es zeigen:

Fig. 1
die eine Hälfte eines Drehschalters von der Seite im Schnitt,
Fig. 2
den zugehörigen Stator in perspektivischer Ansicht,
Fig. 3
ein anderes Ausführungsbeispiel mit einer Betätigungsknopfhalterung,
Fig. 4
einen Ausschnitt einer Variante der Betätigungsknopfhalterung,
Fig. 5
einen Schalter mit einem anderen Rastwerk von der Seite im Schnitt, die
Fig. 6 bis 8
ein Ausführungsmöglichkeit der Rotarrastung die
Fig. 9 bis 11
ein Ausführungsbeispiel mit winem als Kodierer ausgebildeten Halterand,
Fig. 12
eine Ausführungsform der Betätigungsknopfbefestigung und
Fig. 13
einen kombinierten Dreh-Zugschalter.
Further advantageous details of the invention are specified in the subclaims and described below with reference to the exemplary embodiments illustrated in the drawings. Show it:
Fig. 1
half of a rotary switch from the side in section,
Fig. 2
the associated stator in perspective view,
Fig. 3
another embodiment with an operating button holder,
Fig. 4
a section of a variant of the actuation button holder,
Fig. 5
a switch with another locking mechanism from the side in section, the
6 to 8
an execution possibility of the Rotarrastung the
9 to 11
an embodiment with winem designed as an encoder,
Fig. 12
an embodiment of the operating button attachment and
Fig. 13
a combined rotary pull switch.

Mit 1 ist ein Drehschalter bezeichnet, der aus einem Stator 4 und einem diesen topfförmig übergreifenden Rotor 5 besteht. Der Stator 4 besitzt einen scheibenförmigen Auflageabschnitt 7, im weiteren Auflageflansch 7 genannt, und einen Schaft 3. Letzterer ist zweckmäßig als Schraubansatz ausgebildet, der in eine Frontplatte 2 (z.B. eines druckwasserdichten Gerätes) einsetzbar und an dieser mittels einer Mutter 6 anschraubbar ist. Dabei liegt die Unterseite 8 auf der Oberseite 9 der frontplatte auf. Der Rotor 5 ist zugleich als Betätigungsknopf ausgebildet.1 with a rotary switch is referred to, which consists of a stator 4 and a pot-shaped overlapping rotor 5. The stator 4 has a disk-shaped support section 7, hereinafter referred to as the support flange 7, and a shaft 3. The latter is expediently designed as a screw attachment, which can be inserted into a front plate 2 (for example a device which is watertight against water pressure) and can be screwed onto it by means of a nut 6. The bottom 8 lies on the top 9 of the front panel. The rotor 5 is also designed as an operating button.

Auf der Unterseite 8 des Auflageflansches 7 ist eine Ringnut 10 angebracht, in die ein elastischer Dichtungsring 11 eingelegt ist, der über die Unterseite 8 übersteht und beim Anziehen der Mutter 6 zwischen Stator 4 und Frontplatte 2 einen wasserdichten, insbesondere druckwasserdichten Abschluß bewirkt.On the underside 8 of the support flange 7 there is an annular groove 10 into which an elastic sealing ring 11 is inserted, which protrudes beyond the underside 8 and, when the nut 6 is tightened between the stator 4 and the front plate 2, causes a watertight, in particular watertight, closure.

In der Umfangswandung 12 des Auflageflansches 7 ist eine umlaufende Nut 13 vorgesehen, in der ebenfalls ein elastischer Dichtungsring 14 eingesetzt ist. Letzterer steht über die Umfangswandung 12 vor. Die Innenwand 15 der den Auflageflansch 7 übergreifenden Seitenwand 16 des Rotors 5 ist so gering von der Umfangswandung 12 des Auflageflansches 7 entfernt, daß sie gegen den Dichtungsring 14 drückt und so ein druckwasserdichter Abschluß zwischen der Innenwand 15 und der Umfangswandung 12 erreicht wird. Dabei gleitet die Innenwand 15 beim Drehen des Rotors 5 auf dem Dichtring 14. Zweckmäßig ist zwischen Innenwand 15 und Dichtring 14 ein Schmiermittel vorgesehen. Durch die beiden Dichtungsringe 11 und 14 wird ein vollkommen dichter Schalter und eine Abdichtung vom Schalter zum Inneren eines Gerätes erreicht.A circumferential groove 13 is provided in the peripheral wall 12 of the support flange 7, in which an elastic sealing ring 14 is also inserted. The latter protrudes beyond the peripheral wall 12. The inner wall 15 of the support flange 7 overlapping side wall 16 of the rotor 5 is so small from the peripheral wall 12 of the support flange 7 that it presses against the sealing ring 14 and thus a water-tight seal between the inner wall 15 and the peripheral wall 12 is achieved. The inner wall 15 slides on the sealing ring 14 when the rotor 5 is rotated. A lubricant is expediently provided between the inner wall 15 and the sealing ring 14. The two sealing rings 11 and 14 achieve a completely sealed switch and a seal from the switch to the inside of a device.

Zur Erhöhung der Festigkeit kann der Schaft 3 und auch der Auflageflansch 7 aus Metall bestehen. Der Schaft 3 besitzt dann eine Bohrung 18, in die ein pilzförmiger Kontaktträger 19 aus Isoliermaterial mit seinem Achsansatz 20 eingesetzt ist. Die Befestigung erfolgt durch Verschraubung, Verklebung, Einpressen oder Aufschrumpfen des Stators 4 auf den Achsansatz 20 derart, daß eine druckwasserdichte Verbindung entsteht.To increase the strength, the shaft 3 and the support flange 7 can be made of metal. The shaft 3 then has a bore 18 into which a mushroom-shaped contact carrier 19 made of insulating material with its axis extension 20 is inserted. The attachment is made by Screwing, gluing, pressing or shrinking the stator 4 onto the axle extension 20 in such a way that a connection that is watertight is created.

Im Stator 4 ist eine Querbohrung 21 (Fig. 1) oder eine Nut 22 (Fig. 2) vorgesehen, die bei zweiteiliger Ausführung entweder im Auflageflansch 7 oder im isolierenden Kontaktträger 19 angebracht ist und in der eine Druckfeder 23 und eine Rastkugel 24 geführt ist. Letztere rastet in an sich bekannter Weise mit einem Rastkranz 25 auf der Innenwand 15 der Seitenwand 16 des Rotors 5. Die Querbohrung 21 oder Nut 22 kann auch im Rotor 5 vorgesehen sein und die Rastkugel 24 kann dann gegen die Stirnwand 57 eines Statorteils 58 drücken, der einen Rastkranz 25 trägt (vgl. Fig. 5).In the stator 4, a transverse bore 21 (FIG. 1) or a groove 22 (FIG. 2) is provided which, in the case of a two-part design, is provided either in the support flange 7 or in the insulating contact carrier 19 and in which a compression spring 23 and a detent ball 24 are guided . The latter snaps in a manner known per se with a locking ring 25 on the inner wall 15 of the side wall 16 of the rotor 5. The transverse bore 21 or groove 22 can also be provided in the rotor 5 and the locking ball 24 can then press against the end wall 57 of a stator part 58, which carries a locking ring 25 (see. Fig. 5).

Bei aus Isolierstoff bestehendem Stator 4 oder Verwendung eines isolierenden Kontaktträgers 19 sind in den Schaft 3 bzw. den Achsansatz 20 Festkontaktanschlüsse 26 eingeformt, die mit an der Oberfläche 27 zugänglichen Festkontakten 28 verbunden sind oder die Festkontaktanschlüsse 26 und die Festkontakte 28 sind als abgewinkelte Einheit eingeformt.If the stator 4 is made of insulating material or if an insulating contact carrier 19 is used, fixed contact connections 26 are formed in the shaft 3 or the axle extension 20, which are connected to fixed contacts 28 accessible on the surface 27, or the fixed contact connections 26 and the fixed contacts 28 are formed as an angled unit .

Die beweglichen Kontakte 29 sind an der Innenseite 30 des Rotordeckels 31 angebracht und können z.B. einen Mittenkontakt 28.1 und einen Außenkontakt 28.2 verbinden.The movable contacts 29 are attached to the inside 30 of the rotor cover 31 and can e.g. Connect a center contact 28.1 and an external contact 28.2.

Die Befestigung des Rotors 5 erfolgt gemäß Fig. 3 dadurch, daß an den unteren Rand 32 der Seitenwand 16 ein Ring 33 mit einem nach innen reichenden, auf dem Auflageflansch 7 gleitenden Ringflansch 34 angeklebt ist. Der Ringflansch 34 greift zweckmäßig in eine ringförmige Aussparung 35 des Auflageflansches 7 ein. Anstelle eines angeklebten Ringes 33 kann auch ein überstehender Rand der Seitenwand 16 des Rotors 5 durch Warmverformung nach innen geformt sein und so der Ringflansch 34 gebildet werden.3, in that a ring 33 is glued to the lower edge 32 of the side wall 16 with an inwardly extending ring flange 34 sliding on the support flange 7. The annular flange 34 expediently engages in an annular recess 35 in the support flange 7. Instead of a glued ring 33, a protruding edge of the side wall 16 of the rotor 5 can also be formed inwards by hot deformation, and the ring flange 34 can thus be formed.

Weiterhin kann anstelle des genannten Ringes 33 oder des überstehenden Randes gemäß Fig. 4 am Rand 36 des Rotors 5 eine Halteringscheibe 37 angebracht und beispielsweise durch Warmverformung überstehender Randteile 59 befestigt sein. Vorteilhaft kann die Halteringscheibe 37 als Kodierscheibe ausgebildet sein, indem sie mit wenigstens einem Anschlag versehen ist, der mit wenigstens einem Gegenanschlag des Auflageflansches 7 in Wirkverbindung kommen kann.Furthermore, instead of the aforementioned ring 33 or the protruding edge according to FIG. 4, a retaining ring disk 37 can be attached to the edge 36 of the rotor 5 and can be fastened, for example, by means of hot deformation of protruding edge parts 59. The retaining ring disk 37 can advantageously be designed as a coding disk in that it is provided with at least one stop which can come into operative connection with at least one counter-stop of the support flange 7.

Gemäß einer in den Fig. 6 bis 8 dargestellten vorteilhaften Ausgestaltung der Erfindung kann anstelle der Verwendung einer Rastkugel 24 am Kontaktträger 19 oder am Rotor 5 ein Rastnocken 38 mittels wenigstens eines federnden, vorteilhaft als Federschenkel ausgebildeten Zwischengliedes 39 angeformt sein.According to an advantageous embodiment of the invention shown in FIGS. 6 to 8, instead of using a locking ball 24 on the contact carrier 19 or on the rotor 5, a locking cam 38 can be formed by means of at least one resilient intermediate member 39, which is advantageously designed as a spring leg.

In den Fig. 9 bis 11 ist ein Schalter beschrieben, bei dem die Halteringscheibe 37 als Kodierscheibe ausgebildet ist und der Rotor 5 um einen geringen Hub vom Stator 4 hochziehbar ist. Beim Hochziehen kann eine Ausrastung eines Anschlages 40 des Rotors 5 von einem Ansatz 41 des Stators 4 erfolgen, so daß der Rotor 5 noch weiter gedreht werden kann, wenn nach Hochheben des Rotors 5 der Anschlag überwunden ist. Der Anschlag 40 kann auch an der Halteringscheibe 37 vorgesehen sein. Der Stator 4 besitzt dann in dessen Bereich einen Ansatz 41.1.9 to 11, a switch is described in which the retaining ring disk 37 is designed as a coding disk and the rotor 5 can be pulled up from the stator 4 by a small stroke. When pulling up, a stop 40 of the rotor 5 can be disengaged from a shoulder 41 of the stator 4, so that the rotor 5 can be rotated even further if the stop is overcome after the rotor 5 has been lifted. The stop 40 can also be provided on the retaining ring disk 37. The stator 4 then has an extension 41.1 in its area.

Die Befestigung des Rotors 5 kann auch gemäß Fig. 12 mittels einer an ihm angeformten Achse 42 erfolgen, die von einer Seite aus durch eine Bohrung 43 des Kontaktträgers 19 hindurchgesteckt und auf der anderen Seite verschraubt ist. Auf diese Weise kann auch ein Zug-Drehschalter in druckwasserdichter Ausführung erstellt werden, wie in Fig. 13 dargestellt. Die Bohrung 43 im Kontaktträger 19 besitzt hier noch eine Erweiterung 44 zum Einsetzen einer Druckfeder 45, die zwischen dem Statoranschlag 46 und einer Unterlegscheibe 47 eingespannt ist. Letztere ist durch eine in die Achse 42 von unten einschraubbare Schraube 48 gehalten.The rotor 5 can also be fastened according to FIG. 12 by means of an axis 42 formed on it, which is inserted from one side through a bore 43 in the contact carrier 19 and screwed on the other side. In this way, a rotary pull switch in a pressure-water-tight design can also be produced, as shown in FIG. 13. The bore 43 in the contact carrier 19 has an extension 44 for inserting a compression spring 45, which between the Stator stop 46 and a washer 47 is clamped. The latter is held by a screw 48 which can be screwed into the axis 42 from below.

Mit dem Rotor 5 ist, gegebenenfalls unter Zwischenlage einer Federscheibe oder Gleitscheibe 49, ein Rotorkopf 50 mittels Formschluß für Drehbewegungen und Gleitsitz für axiale Bewegungen (Zug) des Rotors 5 verbunden. Beim Hochziehen des Rotors 5 um den Hub 54 kann beispielsweise ein die Drehbewegung des Rotors 5 begrenzender Ansatz 41 (vgl. Fig. 10 und 11) des Stators 4 überwunden werden, so daß der Rotor 5 noch weiter gedreht werden kann. Beim Hochziehen des Rotors 5 wird der Rotorkopf 50 durch die am Stator 4 vorgesehenen z.B. umgeformten Segmente 52 gehalten. Im Rotorkopf 50 befinden sich die mittels einer Feder an die Festkontakte 28 angedrückten, als Schaltwippe ausgebildeten beweglichen Kontakte 29. Der Kontaktträger 19 ist über eine Rastnase 51 zum Stator 4 lageorientiert und mit seinem Achsansatz 20 im Bereich der Bohrung 18 und/oder im Bereich der Auflagefläche 53 vorzugsweise durch Klebung oder Pressung wasserdicht befestigt. Zur Erzielung eines möglichst geringen Überstandsmaßes 56 zur Innenkante der Frontplatte 2 kann der für die Befestigung des Schalters notwendige Gewindeüberdeckungsbereich 55 der Mutter 6 zum Großteil innerhalb der Dicke der Frontplatte 2 untergebracht werden.A rotor head 50 is connected to the rotor 5, optionally with the interposition of a spring washer or sliding washer 49, by means of positive locking for rotary movements and sliding fit for axial movements (pull) of the rotor 5. When the rotor 5 is pulled up by the stroke 54, for example a shoulder 41 (cf. FIGS. 10 and 11) of the stator 4 which limits the rotary movement of the rotor 5 can be overcome, so that the rotor 5 can be rotated even further. When the rotor 5 is pulled up, the rotor head 50 is replaced by e.g. reshaped segments 52 held. The rotor head 50 contains the movable contacts 29, which are pressed onto the fixed contacts 28 by means of a spring and are designed as a rocker switch Support surface 53 is preferably attached in a watertight manner by gluing or pressing. In order to achieve the smallest possible protrusion dimension 56 to the inner edge of the front plate 2, the thread overlap area 55 of the nut 6 required for fastening the switch can be accommodated for the most part within the thickness of the front plate 2.

Bei einem um den Hub 54 abziehbaren Rotor 5 ist der Rand 36 seiner Seitenwand 16 so weit nach unten gezogen, daß er auch in abgezogener Stellung noch den Dichtring 14 überdeckt.In the case of a rotor 5 which can be removed by the stroke 54, the edge 36 of its side wall 16 is pulled down so far that it still covers the sealing ring 14 even in the removed position.

Claims (21)

  1. A rotary switch comprising a stator (4) having a shank (20) which is insertable into a printed circuit board or front panel (2), is at least partly made of insulating material and has at its underside fixed-contact terminals (26) for conductors of fixed contacts (28), said conductors extending in the insulating material of the shank (20), and said rotary switch further comprising a rotor (5) designed as a cup-shaped knob covering the stator (4) from outside and rotatably held at the stator (4),
    characterized by the following features:
    - The stator (4) has
    - a disk-shaped contact support (19) of insulating material;
    - a bearing section (7) in the form of a bearing flange whose cross section is greater than that of the shank (20; 3);
    - the bearing section (7) is provided with
    - an annular groove (19) on the underside (8) facing the top side (9) of the printed circuit board or front panel (2) during assembly, and
    - a circumferential groove (13) in the circumferential wall (12)
    each of which receives a seal ring (11, 14);
    - the rotor wall (16) is designed to cover the circumferential groove (13) and to sealingly and slidably rest against the inserted seal ring (14);
    - at least one movable contact (29) which can be actuated via the rotor (5) is provided between the disk-shaped contact support (19) and the rotor (5).
  2. A rotary switch as claimed in claim 1, characterized in that the stator (4) consists of a shaft (20) with a disk-shaped contact support (19) of insulating material and a metal shank (3) surrounding the bearing section (7), the annular groove (10), the circumferential groove (13) and at least the end portion of the shaft (20), and that the shaft (20) is in water-tight contact with the shank (3).
  3. A rotary switch as claimed in claim 2, characterized in that the shank (3) is shrunk on the shaft (20).
  4. A rotary switch as claimed in claim 2, characterized in that the shank (3) is press-fitted to the shaft (20).
  5. A rotary switch as claimed in claim 2, characterized in that the shank (3) is secured to the shaft (20) by an adhesive.
  6. A rotary switch as claimed in any one of claims 1 to 5, characterized in that in the rotor (5) or in the rotor head (50), at least one groove (22) or transverse bore (21) is provided in which an indexing ball (24) is held under the pretension of a compression spring (23) and can be pressed against the inside wall (57) of the stator (4) opposite the rotor (5), or that in the stator (4), at least one groove (22) or transverse bore (21) is provided in which an indexing ball (24) is held under the pretension of a compression spring (23) and can be pressed against the wall (15) of the rotor (5) opposite the stator (4), said walls (57, 15) being designed as ball-detent portions (25).
  7. A rotary switch as claimed in any one of claims 1 to 6, characterized in that the movable contacts (29) are fastened directly to the inside (30) of the top portion (31) of the rotor (5).
  8. A rotary switch as claimed in any one of claims 1 to 7, characterized in that the lower rim (32) of the rotor sidewall (16) projects inwardly, which is preferably achieved by hot working, and slides on the bearing section (7).
  9. A rotay switch as claimed in any one of claims 1 to 7, characterized in that, at the lower rim (36) of the rotor sidewall (16), a retaining ring disk (37) is provided whose inside ring portion (37.1) rests slidingly on the bearing section (7).
  10. A rotary switch as claimed in claim 9, characterized in that the retaining ring disk (37) is designed as a coding disk.
  11. A rotary switch as claimed in any one of claims 1 to 10, characterized in that a detent cam (38) is formed on the rotor (5) or on the contact support (19) via at least one resilient intermediate portion (39).
  12. A rotary switch as claimed in any one of claims 1 to 11, characterized in that the rotor (5) is axially movable to two switch positions.
  13. A rotary switch as claimed in claim 12, characterized in that the rotor (5) can be lifted off the stator (4) by a predetermined distance (54) against the force exerted by a restoring spring (45).
  14. A rotary switch as claimed in claim 12 or 13, characterized in that it can be locked in at least one switch position.
  15. A rotary switch as claimed in any one of claims 1 to 13, characterized in that the rotor (5) has a shaft (42) which is mounted in the stator (4) in a rotatable and axially movable manner, and on which a rotor head (50) is mounted in an axially movable, but non-rotatable manner.
  16. A rotary switch as claimed in any one of claims 1 to 15, characterized in that the rotor head (50) is axially fixed via deformable segments (52) of the stator (4).
  17. A rotary switch as claimed in any one of claims 1 to 16, characterized in that the contact support (19) is fixed in position relative to the stator (4) via a nose (51).
  18. A rotary switch as claimed in any one of claims 1 to 17, characterized in that the rotor (5) is axially movable away from the stator (4) by a given distance (54) against the force exerted by a restoring spring (45).
  19. A rotary switch as claimed in claim 18, characterized in that in the normal position of the rotor (5), a shoulder (41) of the stator (4) limits the rotation range of the rotor (5), and that with the rotor (5) moved by said distance in an axial direction, further rotary motion of the rotor (5) is possible.
  20. A rotary switch as claimed in any one of claims 1 to 19, characterized in that a thread-overlapping area (55) of the stator (4) and a fixing nut (6), which area is necessary to mount the switch, is provided at least partly within the thickness of the front panel (2).
  21. A rotary switch as claimed in any one of claims 1 to 20, characterized in that the movable contacts (29) are fixed either to the rotor (5) or to the rotor head (50) or to the contact support (19).
EP87115657A 1986-10-28 1987-10-26 Rotary switch Expired - Lifetime EP0265883B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87115657T ATE86786T1 (en) 1986-10-28 1987-10-26 ROTARY SWITCH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863636575 DE3636575A1 (en) 1986-10-28 1986-10-28 ROTARY SWITCH
DE3636575 1986-10-28

Publications (3)

Publication Number Publication Date
EP0265883A2 EP0265883A2 (en) 1988-05-04
EP0265883A3 EP0265883A3 (en) 1989-10-18
EP0265883B1 true EP0265883B1 (en) 1993-03-10

Family

ID=6312598

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87115657A Expired - Lifetime EP0265883B1 (en) 1986-10-28 1987-10-26 Rotary switch

Country Status (4)

Country Link
US (1) US4837413A (en)
EP (1) EP0265883B1 (en)
AT (1) ATE86786T1 (en)
DE (2) DE3636575A1 (en)

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DE19503904A1 (en) * 1995-02-07 1996-08-08 Teves Gmbh Alfred Switch that can be snapped into a holder
US5650601A (en) * 1995-06-06 1997-07-22 Eaton Corporation Sealed switch assembly for use with a rotatable valve shaft
DE19718807C1 (en) * 1997-05-03 1998-09-10 Captron Elect Gmbh Connecting and mounting arrangement for flat switch unit with actuating surface in one flat side and annular flange enclosing unit
US6225580B1 (en) * 1998-12-30 2001-05-01 Electronic Hardware Corporation Rotary switch contained inside a knob
CH693347A5 (en) * 1999-09-02 2003-06-13 Eao Ag Pulse switch, used as electric lock on building door, comprises thumbwheel with validation ring activating round-domed platelet
FR2824419A1 (en) * 2001-05-07 2002-11-08 Cartier Technologies G Car ventilation motor speed rotating selector switch having command shaft conductor tracks selecting with press section flexible part moving forming cursor contact and one piece forming press section/preselector.
ES2194585B1 (en) * 2001-06-18 2005-03-01 Valeo Sistemas De Seguridad Y De Cierre, S.A. CONTACT FOR SWITCH, ESPECIALLY APPLICABLE TO ROTATING START SWITCHES FOR VEHICLES AND ROTATING SWITCH EQUIPPED WITH SUCH CONTACT.
US6596950B2 (en) 2001-09-10 2003-07-22 Illinois Tool Works Inc. Rotary switch
US6933628B2 (en) * 2003-07-24 2005-08-23 Agilent Technologies, Inc. High speed channel selector switch
ES2221584B1 (en) * 2004-03-29 2005-10-01 Bsh Krainel S.A. ROTARY SELECTOR.
DE102004020825B4 (en) * 2004-04-28 2021-08-12 BSH Hausgeräte GmbH Control element
US7508823B2 (en) * 2004-04-30 2009-03-24 Avago Technologies General Ip (Singapore) Pte. Ltd. Method and apparatus for high-speed multiple channel and line selector switch
EP1906420B1 (en) * 2006-09-26 2010-03-31 Panasonic Electric Works Co., Ltd. Rotary switch
US7518070B2 (en) * 2007-02-07 2009-04-14 Lear Corporation Electrical switch
CN101587791B (en) * 2009-06-19 2011-11-30 惠州市正牌科电有限公司 Rotary switch
DE102009033536A1 (en) * 2009-07-10 2011-01-13 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Actuating device for actuating electrical unit, has plastic actuating body rotatably locked in recess of housing around rotation axis, where body is lockable using locking element that is lockable in defined rotation position of body
JP2014056480A (en) * 2012-09-13 2014-03-27 Canon Inc Rotation operation unit and electronic device having the same
ES2569424B1 (en) * 2014-11-07 2017-02-15 Bsh Electrodomésticos España, S.A. Gas cooking point and cooking field layout
CN205159175U (en) * 2015-10-21 2016-04-13 厦门优胜卫厨科技有限公司 Knob switching device
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Also Published As

Publication number Publication date
DE3636575A1 (en) 1988-05-05
ATE86786T1 (en) 1993-03-15
EP0265883A2 (en) 1988-05-04
DE3784622D1 (en) 1993-04-15
US4837413A (en) 1989-06-06
EP0265883A3 (en) 1989-10-18

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