EP1239504A1 - Cam shaft for electromechanical switching device - Google Patents

Cam shaft for electromechanical switching device Download PDF

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Publication number
EP1239504A1
EP1239504A1 EP02003862A EP02003862A EP1239504A1 EP 1239504 A1 EP1239504 A1 EP 1239504A1 EP 02003862 A EP02003862 A EP 02003862A EP 02003862 A EP02003862 A EP 02003862A EP 1239504 A1 EP1239504 A1 EP 1239504A1
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EP
European Patent Office
Prior art keywords
control roller
core
plastic
roller
control
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.)
Granted
Application number
EP02003862A
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German (de)
French (fr)
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EP1239504B1 (en
Inventor
Günther Reimold
Roland Winkler
Siegfried Mannuss
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.)
EGO Elektro Geratebau GmbH
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EGO Elektro Geratebau GmbH
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Publication of EP1239504A1 publication Critical patent/EP1239504A1/en
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Publication of EP1239504B1 publication Critical patent/EP1239504B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/62—Contacts actuated by radial cams
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H2009/0088—Details of rotatable shafts common to more than one pole or switch unit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H2011/0081—Apparatus or processes specially adapted for the manufacture of electric switches using double shot moulding, e.g. for forming elastomeric sealing elements on form stable casing

Definitions

  • the invention relates to a control roller according to the preamble of the claim 1 for installation in an electromechanical switching device.
  • the control roller has cam contours on its outer circumference. With these cam contours are switching devices when turning the control roller or the like of the switching device. Such switchgear are used, for example, to operate hobs or ovens used in electric cookers.
  • the invention has for its object one mentioned Control roller to create the disadvantages of the prior art avoids, in particular without a steel axis to be inserted later gets along and is economically advantageous to produce.
  • the stabilizing core for the control roller is formed.
  • a first plastic used for example a very high quality Plastic.
  • the roller body which is the control function itself takes over and has the cam contours, can from one second plastic consist.
  • This second plastic can do less to be of high quality than the first, especially with regard to its mechanical Characteristics. For example, it can have good sliding properties have or particularly simple in a spraying process can be used or processed.
  • a plastic optimized for the respective purposes can be used.
  • the extrusion coating of the core with the roller body results in a dimensionally stable, one-piece part.
  • Regarding the stability can be on stabilizing Inserts, for example steel axes mentioned above, because of of the core can be dispensed with. Due to the special choice of materials for the Roller body can be both easier, less expensive as well can be made to work better.
  • the molding of the two plastics facing each other compared to one usual put together the great advantage that it is a far cry offers greater stability.
  • Plastics with stabilizing additives can be used for the core are, for example, fiber-reinforced plastics. Above all on temperature resistance is to be observed.
  • a preferred option is a glass fiber reinforced plastic (GRP).
  • GRP glass fiber reinforced plastic
  • the core can have an actuating shaft for the control roller. This actuating shaft only serves to introduce the rotational forces and not to stabilize the steering roller.
  • the Center hole have holding options to secure this actuating shaft. Holding options can preferably be used as locking elements be trained.
  • the core can have recesses and / or on its outside Have projections for improved connection with what is to be molded thereon or to be extrusion-coated roller body.
  • a good connection can also be caused, for example, by a large surface roughness getting produced.
  • metal parts can be incorporated into the core, for example to improve functionality or as a stop, in particular for an actuating shaft to be inserted.
  • This Metal parts can be used as inserts during the spraying process for the Core are used.
  • the Roller body completely, at least in one area, in particular in a longitudinal area.
  • the core completely and can in a certain area, where stability against warpage is less crucial is to survive the length of the core.
  • roller body or the second plastic it should be noted that this due to the loss of stability requirements for its purposes can be optimized.
  • plastic there are good sliding properties to name for the plastic as well as a cheaper possibly also inexpensive to use and process, Plastic.
  • the control roller points several along one another along its longitudinal extent adjacent cam contours.
  • the manufacturing process for the control roller can be simplified if the cam contours in some areas in similar or corresponding cam contours are divided. It is advantageous to use high cam areas to provide the required switching precision in an area of the control roller, in which the stabilizing core runs and a delay of the Control roller prevented.
  • an electromechanical Switchgear can be created that has a control roller with the features of claim 1.
  • FIG. 3 An oblique view of a core 11 according to the invention is the first in FIG Part of a control roller shown.
  • the core 11 has an elongated, flattened central bore 12 into which an actuating shaft is introduced see FIG. 3 on the outside he has a longitudinal groove 13, which for non-rotatable connection with the to be molded onto the roller body.
  • the core points at its rear end 11 a thickening 16 in the manner of a flange-like collar. Also this serves to stabilize the connection to the control roller, in particular longitudinal.
  • Figure 2 shows a finished control roller 18. It consists of the core 11, which has been overmolded with a roller body 20.
  • the roller body 20 is divided into several areas. At its front end, except for a small protrusion that is essentially flat with the core 11 completes, a so-called locking star 21 is formed. About this A locking core can achieve a rastered rotation of the control roller 18 become.
  • An actuating shaft 26 is inserted into the central bore 12, on the again a rotary knob or the like is used as a handle.
  • the Actuating shaft 26 has an elongated shaft body 27 whose end projecting into the control roller 18 has a circumferential groove 28 is provided. In this groove 28, the projection 15 can snap to the Lock the actuating shaft 26 with the control roller 18. About the flattening the central bore 12 or the shaft body 27 becomes a non-rotating Connection guaranteed.
  • the operating shaft 26 a stop disc 29, up to which it in the control roller 18 is inserted.
  • the core is first made from a first one Plastic, for example with the features described above, manufactured.
  • the core is then sprayed in a second step overmolded with the roller body made of the second plastic. This The process can take place promptly or separately.
  • the finished control roller can be provided with an actuating shaft and can be installed in a switching device.

Abstract

A control roller (18) for installation in an electromechanical switch unit, comprises formed cam contours (23) over its outer circumference, which actuate switches. The roller consists of at least two different plastics. One plastic forms a core (11) and is thermally and structurally stable. The roller body (20) consists of a second plastic and is sprayed over the core. A control roller (18) for installation in an electromechanical switch unit, comprises formed cam contours (23) over its outer circumference, which actuate switches. The roller consists of at least two different plastics. One plastic forms a core (11) and is thermally and structurally stable. The roller body (20) consists of a second plastic and is sprayed over the core. The primary plastic has stabilizing additives, e.g. fibre reinforcements. The core has cut-outs and/or projections, and contains a metal insert.

Description

Anwendungsgebiet und Stand der TechnikField of application and state of the art

Die Erfindung betrifft eine Steuerwalze nach dem Oberbegriff des Anspruchs 1 zum Einbau in ein elektromechanisches Schaltgerät. Die Steuerwalze weist Nockenkonturen an ihrem Außenumfang auf. Mit diesen Nockenkonturen werden beim Drehen der Steuerwalze Schalteinrichtungen o. dgl. des Schaltgeräts betätigt. Solche Schaltgeräte werden beispielsweise zur Bedienung von Kochfeldern oder Backöfen bei Elektroherden eingesetzt.The invention relates to a control roller according to the preamble of the claim 1 for installation in an electromechanical switching device. The The control roller has cam contours on its outer circumference. With these cam contours are switching devices when turning the control roller or the like of the switching device. Such switchgear are used, for example, to operate hobs or ovens used in electric cookers.

Es ist bekannt, solche Steuerwalzen aus Kunststoff, beispielsweise Duro- oder Thermoplasten, durch einen Spritzvorgang zu fertigen. Eine Achse, auf der die Steuerwalze sitzt und über die sie gedreht wird, kann nachträglich zur Stabilisierung des Walzenkörpers eingesetzt werden. Hierfür werden beispielsweise Stahlachsen verwendet. Dies dient auch dazu, den bei Einsatztemperaturen von ungefähr 150°C starken Verzug einer Steuerwalze aus einem oben genannten Kunststoff zu vermeiden. It is known to control such plastic rollers, for example Thermosetting or thermoplastic, to be produced by a spraying process. A Axis on which the control roller sits and over which it is rotated subsequently used to stabilize the roller body. For example, steel axles are used for this. This also serves in addition, the strong distortion at operating temperatures of approximately 150 ° C to avoid a control roller made of a plastic mentioned above.

Vor allem bei längeren Steuerwalzen für eine größere Anzahl von Schaltfunktionen ist die Verzugsstabilität ausschlaggebend.Especially with longer control rollers for a larger number of Switching functions, the warpage stability is crucial.

Aufgabe und LösungTask and solution

Der Erfindung liegt die Aufgabe zugrunde, eine eingangs genannte Steuerwalze zu schaffen, die die Nachteile des Standes der Technik vermeidet, insbesondere ohne eine nachträglich einzusetzende Stahlachse auskommt und wirtschaftlich vorteilhaft herstellbar ist.The invention has for its object one mentioned Control roller to create the disadvantages of the prior art avoids, in particular without a steel axis to be inserted later gets along and is economically advantageous to produce.

Gelöst wird diese Aufgabe durch eine Steuerwalze mit den Merkmalen des Anspruchs 1. Vorteilhafte sowie bevorzugte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche und werden im folgenden näher beschrieben. Der Wortlaut der Ansprüche wird durch ausdrückliche Bezugnahme zum Inhalt der Beschreibung gemacht.This task is solved by a control roller with the characteristics of claim 1. Advantageous and preferred embodiments of the Invention are the subject of the dependent claims and are described below described in more detail. The wording of the claims is by express Reference made to the content of the description.

Erfindungsgemäß sind zwei verschiedene Materialien, der besseren Herstellbarkeit halber Kunststoffe, vorgesehen. Aus dem einen Kunststoff wird der stabilisierende Kern für die Steuerwalze gebildet. Um dessen mechanische Eigenschaften zu verbessern, wird ein wärme- und formstabiler erster Kunststoff verwendet, beispielsweise ein sehr hochwertiger Kunststoff. Der Walzenkörper, der die Steuerfunktion an sich übernimmt und dazu die Nockenkonturen aufweist, kann aus einem zweiten Kunststoff bestehen. Dieser zweite Kunststoff kann weniger hochwertig sein als der erste, insbesondere bezüglich seiner mechanischen Eigenschaften. Dafür kann er beispielsweise gute Gleiteigenschaften aufweisen oder besonders einfach in einem Spritzverfahren einsetzbar oder verarbeitbar sein. Somit kann für jedes der beiden Teile ein für die jeweiligen Zwecke optimierter Kunststoff verwendet werden.According to the invention, two different materials, the better Producibility for the sake of plastics. From one plastic the stabilizing core for the control roller is formed. Around to improve its mechanical properties becomes a heat and dimensionally stable first plastic used, for example a very high quality Plastic. The roller body, which is the control function itself takes over and has the cam contours, can from one second plastic consist. This second plastic can do less to be of high quality than the first, especially with regard to its mechanical Characteristics. For example, it can have good sliding properties have or particularly simple in a spraying process can be used or processed. Thus, for each of the two parts a plastic optimized for the respective purposes can be used.

Durch das Umspritzen des Kerns mit dem Walzenkörper ergibt sich ein formstabiles, einstückiges Teil. Bezüglich der Stabilität kann auf stabilisierende Einsätze, beispielsweise oben genannte Stahlachsen, wegen des Kerns verzichtet werden. Durch die spezielle Materialwahl für den Walzenkörper kann dieser sowohl einfacher, kostengünstiger als auch auf seine Funktion besser abgestimmt hergestellt werden. Das Umspritzen der beiden Kunststoffe miteinander weist im Vergleich zu einem üblichen Zusammenstecken den großen Vorteil auf, daß es eine weitaus größere Stabilität bietet.The extrusion coating of the core with the roller body results in a dimensionally stable, one-piece part. Regarding the stability can be on stabilizing Inserts, for example steel axes mentioned above, because of of the core can be dispensed with. Due to the special choice of materials for the Roller body can be both easier, less expensive as well can be made to work better. The molding of the two plastics facing each other compared to one usual put together the great advantage that it is a far cry offers greater stability.

Für den Kern können Kunststoffe mit Stabilisierungszusätzen verwendet werden, beispielsweise faserverstärkte Kunststoffe. Vor allem auf Temperaturbeständigkeit ist zu achten. Eine bevorzugte Möglichkeit ist ein glasfaserverstärkter Kunststoff (GFK). Bei einer hohen Materialstabilität kann der Kern dünnwandig und zumindest teilweise hohl ausgebildet sein nach Art eines Rohrs o. dgl., bevorzugt mit einer länglichen Mittelbohrung. Der Kern kann eine Betätigungswelle für die Steuerwalze aufweisen. Diese Betätigungswelle dient lediglich zur Einbringung der Drehkräfte und nicht zur Stabilisierung der Steuerwalze. Dabei kann die Mittelbohrung Haltemöglichkeiten aufweisen zur Sicherung dieser Betätigungswelle. Haltemöglichkeiten können bevorzugt als Rastelemente ausgebildet sein.Plastics with stabilizing additives can be used for the core are, for example, fiber-reinforced plastics. Above all on temperature resistance is to be observed. A preferred option is a glass fiber reinforced plastic (GRP). With high material stability the core can be thin-walled and at least partially hollow be in the manner of a pipe or the like, preferably with an elongated central bore. The core can have an actuating shaft for the control roller. This actuating shaft only serves to introduce the rotational forces and not to stabilize the steering roller. The Center hole have holding options to secure this actuating shaft. Holding options can preferably be used as locking elements be trained.

Weiterhin kann der Kern an seiner Außenseite Ausnehmungen und/oder Vorsprünge aufweisen zur verbesserten Verbindung mit dem daran anzuspritzenden bzw. umzuspritzenden Walzenkörper. Eine gute Verbindung kann auch beispielsweise durch eine große Oberflächenrauhigkeit hergestellt werden.Furthermore, the core can have recesses and / or on its outside Have projections for improved connection with what is to be molded thereon or to be extrusion-coated roller body. A good connection can also be caused, for example, by a large surface roughness getting produced.

Zusätzlich können in den Kern Metallteile eingearbeitet sein, die beispielsweise zur Funktionsverbesserung bzw. als Anschlag, insbesondere für eine einzuschiebende Betätigungswelle, dienen können. Diese Metallteile können als Einlegeteile während des Spritzvorgangs für den Kern eingesetzt werden. In addition, metal parts can be incorporated into the core, for example to improve functionality or as a stop, in particular for an actuating shaft to be inserted. This Metal parts can be used as inserts during the spraying process for the Core are used.

Bei einer bevorzugten Ausführungsmöglichkeit der Erfindung umgibt der Walzenkörper den Kern zumindest in einem Bereich vollständig, insbesondere in einem Längsbereich. Besonders bevorzugt ummantelt der Walzenkörper den Kern vollständig und kann in einem gewissen Bereich, bei dem eine Stabilität gegen Verzug weniger ausschlaggebend ist, in seiner Länge auch über den Kern überstehen.In a preferred embodiment of the invention, the Roller body completely, at least in one area, in particular in a longitudinal area. Particularly preferably encased Roller body the core completely and can in a certain area, where stability against warpage is less crucial is to survive the length of the core.

Bezüglich des Walzenkörpers bzw. des zweiten Kunststoffes ist zu beachten, daß dieser wegen der wegfallenden Stabilitätsanforderungen für seine Zwecke optimiert werden kann. Hier sind zuvorderst gute Gleiteigenschaften für den Kunststoff zu nennen sowie ein an sich kostengünstiger, eventuell auch kostengünstig einsetzbarer und verarbeitbarer, Kunststoff.With regard to the roller body or the second plastic, it should be noted that that this due to the loss of stability requirements for its purposes can be optimized. First of all, there are good sliding properties to name for the plastic as well as a cheaper possibly also inexpensive to use and process, Plastic.

Entlang ihrer Längsausdehnung weist die Steuerwalze mehrere aneinander angrenzende Nockenkonturen auf. Das Herstellungsverfahren für die Steuerwalze kann vereinfacht werden, wenn die Nockenkonturen bereichsweise in ähnliche bzw. einander entsprechende Nockenkonturen aufgeteilt sind. Dabei ist es von Vorteil, die Nockenbereiche mit hoher erforderlicher Schaltpräzision in einem Bereich der Steuerwalze vorzusehen, in dem der stabilisierende Kern verläuft und einen Verzug der Steuerwalze verhindert.The control roller points several along one another along its longitudinal extent adjacent cam contours. The manufacturing process for the control roller can be simplified if the cam contours in some areas in similar or corresponding cam contours are divided. It is advantageous to use high cam areas to provide the required switching precision in an area of the control roller, in which the stabilizing core runs and a delay of the Control roller prevented.

Des weiteren kann im Rahmen der Erfindung ein elektromechanisches Schaltgerät geschaffen werden, das eine Steuerwalze mit den Merkmalen des Anspruchs 1 aufweist.Furthermore, an electromechanical Switchgear can be created that has a control roller with the features of claim 1.

Die vorstehenden und weitere Merkmale gehen außer aus den Ansprüchen auch aus der Beschreibung und den Zeichnungen hervor, wobei die einzelnen Merkmale jeweils für sich allein oder zu mehreren in Form von Unterkombinationen bei einer Ausführungsform der Erfindung und auf anderen Gebieten verwirklicht sein und vorteilhafte sowie für sich schutzfähige Ausführungen darstellen können, für die hier Schutz beansprucht wird. Die Unterteilung der Anmeldung in einzelne Abschnitte sowie Zwischenüberschriften beschränkt die unter diesen gemachten Aussagen nicht in ihrer Allgemeingültigkeit.The above and further features go beyond the claims also from the description and the drawings, wherein the individual characteristics individually or in groups Form of sub-combinations in one embodiment of the invention and be realized in other fields and advantageous as well as for Protectable versions can be represented, for which protection here is claimed. The division of the application into individual sections as well as subheadings limits those below statements made are not generally valid.

Kurzbeschreibung der ZeichnungenBrief description of the drawings

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden näher erläutert. In den Zeichnungen zeigen:

Fig. 1
einen Kern,
Fig. 2
die Steuerwalze bestehend aus dem Kern aus Figur 1 mit einem umspritzten Walzenkörper und
Fig. 3
einen Schnitt durch den Walzenkörper aus Figur 2 samt einzusetzender Betätigungswelle.
An embodiment of the invention is shown in the drawings and is explained in more detail below. The drawings show:
Fig. 1
a core
Fig. 2
the control roller consisting of the core of Figure 1 with an overmolded roller body and
Fig. 3
a section through the roller body of Figure 2 including the actuating shaft to be used.

Detaillierte Beschreibung der AusführungsbeispieleDetailed description of the exemplary embodiments

In Figur 1 ist in Schrägansicht ein erfindungsgemäßer Kern 11 als erstes Bestandteil einer Steuerwalze dargestellt. Der Kern 11 weist eine längliche, abgeflachte Mittelbohrung 12 auf, in die eine Betätigungswelle eingebracht werden kann, siehe hierzu Figur 3. An seiner Außenseite weist er eine Längsnut 13 auf, die zur verdrehsicheren Verbindung mit dem anzuspritzenden Walzenkörper dient. Des weiteren sind zwei Ausnehmungen 14 angeformt, die zur stabilen Verbindung mit dem Walzenkörper gegen Verdrehen dienen. An seinem hinteren Ende weist der Kern 11 eine Verdickung 16 nach Art eines flanschartigen Kragens auf. Auch diese dient zur Stabilisierung der Verbindung mit der Steuerwalze, insbesondere in Längsrichtung. An oblique view of a core 11 according to the invention is the first in FIG Part of a control roller shown. The core 11 has an elongated, flattened central bore 12 into which an actuating shaft is introduced see FIG. 3 on the outside he has a longitudinal groove 13, which for non-rotatable connection with the to be molded onto the roller body. There are also two recesses 14 integrally formed for stable connection to the roller body serve against twisting. The core points at its rear end 11 a thickening 16 in the manner of a flange-like collar. Also this serves to stabilize the connection to the control roller, in particular longitudinal.

Die Figur 2 zeigt eine fertige Steuerwalze 18. Sie besteht aus dem Kern 11, der mit einem Walzenkörper 20 umspritzt worden ist. Der Walzenkörper 20 ist in mehrere Bereich aufgeteilt. An seinem vorderen Ende, das bis auf einen kleinen Überstand im wesentlichen plan mit den Kern 11 abschließt, ist ein sogenannter Raststern 21 angeformt. Über diesen Rastkern kann eine gerasterte Drehung der Steuerwalze 18 erreicht werden.Figure 2 shows a finished control roller 18. It consists of the core 11, which has been overmolded with a roller body 20. The roller body 20 is divided into several areas. At its front end, except for a small protrusion that is essentially flat with the core 11 completes, a so-called locking star 21 is formed. About this A locking core can achieve a rastered rotation of the control roller 18 become.

Daran anschließend sind durch flanschartige Scheiben 22 Bereiche des Walzenkörpers 20 abgetrennt. Innerhalb dieser Scheiben 22 können verschiedenartig ausgebildete Nockenkonturen verlaufen. An die Scheiben 22 schließen sich mehrere Nocken 23 an, die sich bis hin zu einem Abschlußflansch 24 erstrecken. Mit diesen Nocken 23 können beispielsweise reine Schaltfunktionen ausgelöst werden, während mit zwischen den Scheiben 22 befindlichen Nockenkonturen, die sich kontinuierlich in ihrer Dicke ändern, beispielsweise Einstellvorgänge vorgenommen werden können. Die genaue Funktion eines mit einer solchen Steuerwalze ausgestatteten Schaltgeräts braucht hier nicht erläutert zu werden, da sie dem Fachmann geläufig ist.Subsequently, 22 areas of the Rolled body 20 separated. Within these disks 22 can differently designed cam contours run. On the windows 22 are followed by several cams 23, which extend up to one End flange 24 extend. With these cams 23, for example pure switching functions are triggered while with between the disks 22 located cam contours that continuously in change their thickness, for example, adjustments are made can. The exact function of one with such a control roller equipped switching device need not be explained here because it is familiar to the expert.

Aus dem Schnitt in Figur 3 durch die Steuerwalze 18 läßt sich entnehmen, wie der Walzenkörper 20 um den Kern 11 herumgespritzt ist. Es ist zu erkennen, wie über die Längsnut 13 eine Verdrehsicherung sowie über die Verdickung 16 eine Sicherung gegen Auseinanderziehen in der Länge erzielt wird. Des weiteren ist in der Mittelbohrung 12 des Kerns 11 ein Vorsprung 15 ausgebildet. Dieser kann beispielsweise mit den Ausnehmungen 14, siehe Figur 1, korrespondieren.From the section in FIG. 3 through the control roller 18 it can be seen that how the roller body 20 is sprayed around the core 11. It is to recognize how an anti-rotation device as well as a security against pulling apart in the Length is achieved. Furthermore, in the central bore 12 of the core 11 a projection 15 is formed. This can, for example, with the recesses 14, see Figure 1, correspond.

In die Mittelbohrung 12 wird eine Betätigungswelle 26 eingesetzt, an der wiederum ein Drehknebel o. dgl. als Griffmöglichkeit angesetzt wird. Die Betätigungswelle 26 weist einen länglichen Wellenkörper 27 auf, an dessen in die Steuerwalze 18 ragendem Ende eine umlaufende Nut 28 vorgesehen ist. In diese Nut 28 kann der Vorsprung 15 einrasten, um die Betätigungswelle 26 mit der Steuerwalze 18 zu verriegeln. Über die Abflachung der Mittelbohrung 12 bzw. des Wellenkörpers 27 wird eine verdrehsichere Verbindung gewährleistet. Des weiteren weist die Betätigungswelle 26 eine Anschlagscheibe 29 auf, bis zu der sie in die Steuerwalze 18 eingeschoben wird.An actuating shaft 26 is inserted into the central bore 12, on the again a rotary knob or the like is used as a handle. The Actuating shaft 26 has an elongated shaft body 27 whose end projecting into the control roller 18 has a circumferential groove 28 is provided. In this groove 28, the projection 15 can snap to the Lock the actuating shaft 26 with the control roller 18. About the flattening the central bore 12 or the shaft body 27 becomes a non-rotating Connection guaranteed. Furthermore, the operating shaft 26 a stop disc 29, up to which it in the control roller 18 is inserted.

Zur Herstellung einer Steuerwalze wird zuerst der Kern aus einem ersten Kunststoff, beispielsweise mit den oben beschriebenen Merkmalen, hergestellt. Anschließend wird der Kern in einem zweiten Spritzvorgang mit dem Walzenkörper aus dem zweiten Kunststoff umspritzt. Dieser Vorgang kann zeitnah oder auch getrennt erfolgen. Abschließend kann die fertige Steuerwalze mit einer Betätigungswelle versehen werden und in ein Schaltgerät eingebaut werden.To produce a control roller, the core is first made from a first one Plastic, for example with the features described above, manufactured. The core is then sprayed in a second step overmolded with the roller body made of the second plastic. This The process can take place promptly or separately. In conclusion the finished control roller can be provided with an actuating shaft and can be installed in a switching device.

Claims (10)

Steuerwalze zum Einbau in ein elektromechanisches Schaltgerät, wobei die Steuerwalze (18) geformte Nockenkonturen (23) an ihrem Außenumfang aufweist um Schalteinrichtungen des Schaltgeräts zu betätigen, dadurch gekennzeichnet, dass die Steuerwalze aus mindestens zwei verschiedenen Kunststoffen besteht, wobei ein Kunststoffteil einen Kern (11) bildet und aus einem wärmeund formstabilen ersten Kunststoff besteht, und wobei ein Walzenkörper (20) mit den Nockenkonturen (23) aus einem zweiten Kunststoff an den Kern angespritzt ist und diesen zumindest teilweise umgibt.Control roller for installation in an electromechanical switching device , the control roller (18) having shaped cam contours (23) on its outer circumference in order to actuate switching devices of the switching device, characterized in that the control roller consists of at least two different plastics, a plastic part having a core (11 ) and consists of a heat and dimensionally stable first plastic, and wherein a roller body (20) with the cam contours (23) is molded from a second plastic onto the core and at least partially surrounds it. Steuerwalze nach Anspruch 1, dadurch gekennzeichnet, daß der erste Kunststoff Stabilisierungszusätze aufweist, vorzugsweise ein faserverstärkter Kunststoff ist, insbesondere GFK.Control roller according to Claim 1, characterized in that the first plastic has stabilizing additives, is preferably a fiber-reinforced plastic, in particular GRP. Steuerwalze nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Kern (11) dünnwandig und zumindest teilweise hohl ausgebildet ist zur Aufnahme einer Betätigungswelle (26) für die Steuerwalze (18), wobei er vorzugsweise eine Mittelbohrung (12) aufweist, die insbesondere abgeflacht ist.Control roller according to claim 1 or 2, characterized in that the core (11) is thin-walled and at least partially hollow for receiving an actuating shaft (26) for the control roller (18), it preferably having a central bore (12) which is in particular flattened is. Steuerwalze nach Anspruch 3, dadurch gekennzeichnet, daß die Mittelbohrung (12) des Kerns (11) Haltemöglichkeiten aufweist zur Sicherung einer Betätigungswelle (26) für die Steuerwalze (18), wobei vorzugsweise die Haltemöglichkeiten als Rastelemente (15) ausgebildet sind.Control roller according to Claim 3, characterized in that the central bore (12) of the core (11) has holding options for securing an actuating shaft (26) for the control roller (18), the holding options preferably being designed as latching elements (15). Steuerwalze nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Kern (11) an seiner Außenseite Ausnehmungen (13, 14) und/oder Vorsprünge (16) aufweist zur Verbindung mit dem umspritzten Walzenkörper (20).Control roller according to one of the preceding claims, characterized in that the core (11) has recesses (13, 14) and / or projections (16) on its outside for connection to the overmolded roller body (20). Steuerwalze nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß in den Kern (11) Metallteile eingearbeitet sind, vorzugsweise als Einlegeteile.Control roller according to one of the preceding claims, characterized in that metal parts are incorporated into the core (11), preferably as insert parts. Steuerwalze nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Walzenkörper (20) den Kern (11) zumindest in einem Bereich völlig umgibt, vorzugsweise den gesamten Kern ummantelt.Control roller according to one of the preceding claims, characterized in that the roller body (20) completely surrounds the core (11) at least in one area, preferably encasing the entire core. Steuerwalze nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der zweite Kunststoff des Walzenkörpers (20) gute Gleiteigenschaften aufweist, wobei er insbesondere aus einem verfahrenstechnisch einfach und wirtschaftlich vorteilhaft einsetzbaren Kunststoff besteht.Control roller according to one of the preceding claims, characterized in that the second plastic of the roller body (20) has good sliding properties, it consisting in particular of a plastic which is simple in terms of process technology and which can be used economically advantageously. Steuerwalze nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Nockenkonturen (23) der Steuerwalze (18) bereichsweise in ähnliche bzw. einander entsprechende Nockenkonturen aufgeteilt sind.Control roller according to one of the preceding claims, characterized in that the cam contours (23) of the control roller (18) are divided in regions into similar or corresponding cam contours. Elektromechanisches Schaltgerät, dadurch gekennzeichnet, daß es eine Steuerwalze (18) nach einem der vorhergehenden Ansprüche aufweist.Electromechanical switching device, characterized in that it has a control roller (18) according to one of the preceding claims.
EP02003862A 2001-03-05 2002-02-21 Cam shaft for electromechanical switching device Expired - Lifetime EP1239504B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10112240 2001-03-05
DE10112240A DE10112240A1 (en) 2001-03-05 2001-03-05 Control roller for an electromechanical switching device

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EP1239504A1 true EP1239504A1 (en) 2002-09-11
EP1239504B1 EP1239504B1 (en) 2004-08-04

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AT (1) ATE272485T1 (en)
DE (2) DE10112240A1 (en)
ES (1) ES2223978T3 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
WO2004075226A1 (en) 2003-02-24 2004-09-02 E.G.O. Elektro-Gerätebau GmbH Rotary switch comprising a switching shaft for an electrical appliance
WO2004075225A1 (en) * 2003-02-24 2004-09-02 E.G.O. Elektro-Gerätebau GmbH Switching shaft for a rotary switch

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016203065A1 (en) * 2016-02-26 2016-08-18 Schaeffler Technologies AG & Co. KG Shift drum for a vehicle transmission

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Publication number Priority date Publication date Assignee Title
DE1778255U (en) * 1958-11-27 Robert Bosch G M B H Stuttgart Removable plug connection of a part with the end of another part, in particular an actuator with the switching rod of a switch
US3382473A (en) * 1966-05-31 1968-05-07 Cts Corp Detachable shaft for electrical control
US4420072A (en) * 1980-04-25 1983-12-13 E.G.O. Elektro-Gerate Blanc U. Fischer Switching and control device
JPH07239009A (en) * 1994-02-25 1995-09-12 Mitsubishi Materials Corp Cam shaft and its manufacture
US5497679A (en) * 1988-03-14 1996-03-12 Briggs & Stratton Corporation Molded camshaft assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1778255U (en) * 1958-11-27 Robert Bosch G M B H Stuttgart Removable plug connection of a part with the end of another part, in particular an actuator with the switching rod of a switch
US3382473A (en) * 1966-05-31 1968-05-07 Cts Corp Detachable shaft for electrical control
US4420072A (en) * 1980-04-25 1983-12-13 E.G.O. Elektro-Gerate Blanc U. Fischer Switching and control device
US5497679A (en) * 1988-03-14 1996-03-12 Briggs & Stratton Corporation Molded camshaft assembly
JPH07239009A (en) * 1994-02-25 1995-09-12 Mitsubishi Materials Corp Cam shaft and its manufacture

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 01 31 January 1996 (1996-01-31) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004075226A1 (en) 2003-02-24 2004-09-02 E.G.O. Elektro-Gerätebau GmbH Rotary switch comprising a switching shaft for an electrical appliance
WO2004075225A1 (en) * 2003-02-24 2004-09-02 E.G.O. Elektro-Gerätebau GmbH Switching shaft for a rotary switch

Also Published As

Publication number Publication date
DE50200722D1 (en) 2004-09-09
DE10112240A1 (en) 2003-01-30
EP1239504B1 (en) 2004-08-04
ES2223978T3 (en) 2005-03-01
ATE272485T1 (en) 2004-08-15

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