EP0464376B1 - Switch lever with a device for adjustment of the switching point of an electric switch for electromechanic timers - Google Patents

Switch lever with a device for adjustment of the switching point of an electric switch for electromechanic timers Download PDF

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Publication number
EP0464376B1
EP0464376B1 EP91108936A EP91108936A EP0464376B1 EP 0464376 B1 EP0464376 B1 EP 0464376B1 EP 91108936 A EP91108936 A EP 91108936A EP 91108936 A EP91108936 A EP 91108936A EP 0464376 B1 EP0464376 B1 EP 0464376B1
Authority
EP
European Patent Office
Prior art keywords
lever
switch
lever arm
arm
teeth
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
EP91108936A
Other languages
German (de)
French (fr)
Other versions
EP0464376A2 (en
EP0464376A3 (en
Inventor
Martin Löffler
Manfred Ulmer
Werner Bächle
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.)
Graesslin GmbH
Graesslin KG
Original Assignee
Graesslin GmbH
Graesslin KG
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
Application filed by Graesslin GmbH, Graesslin KG filed Critical Graesslin GmbH
Publication of EP0464376A2 publication Critical patent/EP0464376A2/en
Publication of EP0464376A3 publication Critical patent/EP0464376A3/en
Application granted granted Critical
Publication of EP0464376B1 publication Critical patent/EP0464376B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • H01H2003/323—Driving mechanisms, i.e. for transmitting driving force to the contacts the mechanisms being adjustable
    • 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
    • H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed

Definitions

  • the invention relates to a time-controlled and / or manually actuable switching lever with a device that can be set by means of a tooth lock to adjust the switching point of an electrical switch for electromechanical timers, cf. DE-U-86 02 885.
  • a switching cam is mounted on a switching lever so as to be longitudinally displaceable, which cam is provided on an inclined plane, for setting the switching point of the electrical switch of an electromechanical timer.
  • a relatively fine-stage tooth lock is provided there between the shift lever and the shift cam.
  • a multi-stage toothing is provided on the shift lever and a spring detent tooth is provided on the shift cam, which engages with the toothing on the shift lever.
  • This adjustment device has the disadvantage that the operability when setting the switching point is complicated and uneconomical due to the spatially relatively small switching cam. In addition, such an adjustment device is not suitable for the same reasons when automatic assembly machines are used.
  • the invention has for its object to provide a shift lever with a device for adjusting the switching point of an electrical switch that is simple, precise and economical to manufacture and simple and economical to operate the switching point both manually and mechanically.
  • the shift lever 1 shown in FIGS. 1 and 2 in any construction-specific embodiment essentially consists of a lever part 1 a equipped with a scanning cam 2 and a lever part 1 mounted on one side on the lever part 1 a, in particular in the region of its bearing point 3, lever arm 1b under the action of a spring force.
  • the lever part 1a and the lever arm 1b are expediently connected to one another in one piece.
  • the lever arm 1b is provided on the front side, in particular on one side, with a projection 5 carrying an internal toothing 4.
  • This inner locking toothing 4 is adjacent to a front locking toothing 6, which is arranged on the lever part 1a.
  • the side 12 of the lever arm 1b which is designed to be resilient, acts on the electrical switch 7 in the present embodiment, as can be seen in more detail in FIG. 3.
  • 8 denotes the bearing shaft of the shift lever 1.
  • Fig. 3 it can be seen how the two toothings 4 and 6 for setting the switching point of the switch 7 are engaged with each other without play.
  • the switch 7 is designed there as a so-called snap contact or microswitch, which has a defined switching point of the switching device provided there. 9 identifies a cam track which can be formed from programmed switching tabs 10, which is scanned by the scanning cam 2 of the shift lever 1 without play.
  • 4 shows a shift lever 1 in which the toothing engagement between the lever part 1a and the lever arm 1b is designed as a so-called crown locking toothing. 4 shows the locking teeth on the lever part 1a and 6 indicates the locking teeth on the lever arm 1b. 3 means the bearing point of the shift lever 1 with a bearing shaft 8.
  • the embodiment of the shift lever 1 according to the invention with the lever arm 1b, which is relatively finely adjustable to the lever part 1a and is pretensioned under the action of a spring force, ensures in its relatively large and clearly dimensionable embodiment a simple, precise and assembly-machine-compatible setting device for the switching point of a switch.
  • shift lever 1 may consist of several individual parts and that the directional locking teeth shown and described may have a different dimension than that shown.

Landscapes

  • Mechanical Control Devices (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
  • Switches With Compound Operations (AREA)

Description

Die Erfindung betrifft einen zeitgesteuerten und/oder manuell beaufschlagbaren Schalthebel mit einer, mittels eines Zahnrichtgesperres einstellbaren Vorrichtung zur Einstellung des Schaltpunktes eines elektrischen Schalters, für elektromechanische Schaltuhren, vgl. DE-U-86 02 885.The invention relates to a time-controlled and / or manually actuable switching lever with a device that can be set by means of a tooth lock to adjust the switching point of an electrical switch for electromechanical timers, cf. DE-U-86 02 885.

Bei elektrischen Schaltern, insbesondere sogenannten Sprungkontaktschaltern, bei denen unter der Wirkung eines Federelementes ein Kontaktelement momentan umschaltbar ist, ist es aufgrund insbesondere von mechanischen Toleranzen einerseits innerhalb des Schalters und andererseits innerhalb der mechanischen Konstruktion zwischen den Schaltnocken der Schaltreiter und dem Schaltnocken des Schalters, erforderlich, daß diese Toleranzen eliminiert und der Schaltpunkt des Schalters reproduzierbar präzise einstellbar ist, sodaß eine relativ hohe Schaltzeitgenauigkeit erzielt wird. Dabei soll sichergestellt sein, daß die Einstellung des Schaltpunktes einfach und rationell möglich ist, und daß die Vorrichtung für diese Einstellung einfach, präzise und wirtschaftlich herstellbar ist.In the case of electrical switches, in particular so-called snap-action switches, in which a contact element can currently be switched under the action of a spring element, it is necessary on the one hand within the switch and, on the other hand, within the mechanical construction between the switch cam of the switch tab and the switch cam of the switch due to mechanical tolerances that these tolerances are eliminated and the switch point of the switch is reproducibly and precisely adjustable, so that a relatively high switching time accuracy is achieved. It should be ensured that the setting of the switching point is simple and efficient, and that the device for this setting is simple, precise and economical to manufacture.

Bei der eingangs genannten Einstellvorrichtung ist auf einem Schalthebel ein Schaltnocken längsverschiebbar gelagert, der mit einer schiefen Ebene versehen ist, zur Einstellung des Schaltpunktes des elektrischen Schalters einer elektromechanischen Schaltuhr. Für eine feinstufige und lagengesicherte Einstellung des Schaltnockens auf dem Schalthebel, ist dort zwischen dem Schalthebel und dem Schaltnocken ein relativ feinstufiges Zahnrichtgesperre vorgesehen. Dabei ist auf dem Schalthebel eine mehrstufige Verzahnung und am Schaltnocken ein Federrastzahn vorgesehen, der mit der Verzahnung auf dem Schalthebel in Eingriff steht.In the setting device mentioned at the beginning, a switching cam is mounted on a switching lever so as to be longitudinally displaceable, which cam is provided on an inclined plane, for setting the switching point of the electrical switch of an electromechanical timer. For a finely graduated and positionally secured setting of the switch cam on the shift lever, a relatively fine-stage tooth lock is provided there between the shift lever and the shift cam. In this case, a multi-stage toothing is provided on the shift lever and a spring detent tooth is provided on the shift cam, which engages with the toothing on the shift lever.

Diese Einstellvorrichtung ist mit dem Nachteil behaftet, daß die Bedienbarkeit bei der Einstellung des Schaltpunktes aufgrund des räumlich relativ kleinen Schaltnockens kompliziert und unwirtschaftlich ist. Außerdem eignet sich eine derartige Einstellvorrichtung aus denselben Gründen nicht bei einem Einsatz von Montageautomaten.This adjustment device has the disadvantage that the operability when setting the switching point is complicated and uneconomical due to the spatially relatively small switching cam. In addition, such an adjustment device is not suitable for the same reasons when automatic assembly machines are used.

Der Erfindung liegt die Aufgabe zugrunde, einen Schalthebel mit einer Vorrichtung zur Einstellung des Schaltpunktes eines elektrischen Schalters zu schaffen, der einfach, präzise und wirtschaftlich herstellbar und zur Einstellung des Schaltpunktes einfach und wirtschaftlich sowohl manuell, als auch maschinell bedienbar ist.The invention has for its object to provide a shift lever with a device for adjusting the switching point of an electrical switch that is simple, precise and economical to manufacture and simple and economical to operate the switching point both manually and mechanically.

Diese Aufgabe wird mit den Merkmalen im kennzeichnenden Teil des Patentanspruchs 1 gelöst und in den Unteransprüchen sind weitere vorteilhafte Einzelheiten beansprucht.This object is achieved with the features in the characterizing part of patent claim 1 and further advantageous details are claimed in the subclaims.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert. Es zeigen

Fig. 1
eine Seitenansicht auf einen Schalthebel mit einer Vorrichtung zum Einstellen des Schaltpunktes eines Schalters, in herstellungsbelassener, entspannter Form,
Fig. 2
eine Vorderansicht auf einen Schalthebel nach Fig. 1,
Fig. 3
eine schaubildliche Ansicht auf einen, über einen eingestellten Schalthebel, mittelbar gesteuerten elektrischen Schalter und
Fig. 4
eine Vorderansicht auf einen Schalthebel mit einer sogenannten Kronenradsperrverzahnung zwischen dem Hebelteil und dem Hebelarm des Schalthebels.
An embodiment of the invention is shown in the drawing and is explained in more detail below. Show it
Fig. 1
2 shows a side view of a shift lever with a device for setting the switching point of a switch, in a relaxed, manufacturing-like form,
Fig. 2
2 shows a front view of a shift lever according to FIG. 1,
Fig. 3
a perspective view of a, via a set lever, indirectly controlled electrical switch and
Fig. 4
a front view of a shift lever with a so-called crown gear locking toothing between the lever part and the lever arm of the shift lever.

Der, in der Fig. 1 und 2, dargestellte Schalthebel 1 in einer beliebigen, konstruktionsspezifischen Ausführungsform besteht im wesentlichen aus einem, mit einem Abtastnocken 2 bestückten Hebelteil 1a und einem, am Hebelteil 1a, insbesondere im Bereich von dessen Lagerpunkt 3, einseitig gelagerten, unter der Wirkung einer Federkraft stehenden Hebelarm 1b. Das Hebelteil 1a und der Hebelarm 1b sind zweckmäßigerweise einstückig miteinander verbunden. Der Hebelarm 1b ist vorderseitig, insbesondere einseitig mit einem, eine Innenrastverzahnung 4 tragenden Vorsprung 5 versehen. Dieser Innenrastverzahnung 4 ist eine Stirnrastverzahnung 6 benachbart, die am Hebelteil 1a angeordnet ist. Mit der Seite 12 des Hebelarms 1b, der federelastisch ausgebildet ist, wird in der vorliegenden Ausführung der elektrische Schalter 7 beaufschlagt, wie dies aus der Fig. 3 näher ersichtlich ist. 8 bezeichnet die Lagerwelle des Schalthebels 1.The shift lever 1 shown in FIGS. 1 and 2 in any construction-specific embodiment essentially consists of a lever part 1 a equipped with a scanning cam 2 and a lever part 1 mounted on one side on the lever part 1 a, in particular in the region of its bearing point 3, lever arm 1b under the action of a spring force. The lever part 1a and the lever arm 1b are expediently connected to one another in one piece. The lever arm 1b is provided on the front side, in particular on one side, with a projection 5 carrying an internal toothing 4. This inner locking toothing 4 is adjacent to a front locking toothing 6, which is arranged on the lever part 1a. With the side 12 of the lever arm 1b, which is designed to be resilient, acts on the electrical switch 7 in the present embodiment, as can be seen in more detail in FIG. 3. 8 denotes the bearing shaft of the shift lever 1.

Aus der Fig. 3 ist ersichtlich, wie die beiden Verzahnungen 4 und 6 zur Einstellung des Schaltpunktes des Schalters 7 spielfrei miteinander in Eingriff stehen. Der Schalter 7 ist dort als sogenannter Sprungkontakt oder Mikroschalter ausgebildet, der über einen definierten Umschaltpunkt der dort vorgesehen Schalteinrichtung verfügt. 9 kennzeichnet eine Nockenbahn, die aus programmierten Schaltreitern 10 gebildet sein kann, welche vom Abtastnocken 2 des Schalthebels 1 spielfrei abgetastet wird.From Fig. 3 it can be seen how the two toothings 4 and 6 for setting the switching point of the switch 7 are engaged with each other without play. The switch 7 is designed there as a so-called snap contact or microswitch, which has a defined switching point of the switching device provided there. 9 identifies a cam track which can be formed from programmed switching tabs 10, which is scanned by the scanning cam 2 of the shift lever 1 without play.

Aus der Fig. 4 ist ein Schalthebel 1 ersichtlich, bei dem der Verzahnungseingriff zwischen dem Hebelteil 1a und dem Hebelarm 1b als sogenannte Kronensperrverzahnung ausgebildet ist. 4 zeigt die Sperrverzahnung am Hebelteil 1a und 6 kennzeichnet die Sperrverzahnung am Hebelarm 1b. 3 bedeutet den Lagerpunkt des Schalthebels 1 mit einer Lagerwelle 8.4 shows a shift lever 1 in which the toothing engagement between the lever part 1a and the lever arm 1b is designed as a so-called crown locking toothing. 4 shows the locking teeth on the lever part 1a and 6 indicates the locking teeth on the lever arm 1b. 3 means the bearing point of the shift lever 1 with a bearing shaft 8.

Die erfindungsgemäße Ausführung des Schalthebels 1 mit dem zum Hebelteil 1a relativ feinstufig einstellbaren, unter der Wirkung einer Federkraft vorgespannten, Hebelarm 1b, stellt in seiner relativ großen und übersichtlich dimensionierbaren Ausführung eine einfache, präzise und montagemaschinengerechte Einstellvorrichtung für den Schaltpunkt eines Schalters sicher.The embodiment of the shift lever 1 according to the invention with the lever arm 1b, which is relatively finely adjustable to the lever part 1a and is pretensioned under the action of a spring force, ensures in its relatively large and clearly dimensionable embodiment a simple, precise and assembly-machine-compatible setting device for the switching point of a switch.

Es ist auch vorgesehen, daß der Schalthebel 1 aus mehreren Einzelteilen bestehen kann, und daß die gezeigten und beschriebenen gerichteten Sperrverzahnungen eine andere Dimensionierung als die dargestellten aufweisen können.It is also envisaged that the shift lever 1 may consist of several individual parts and that the directional locking teeth shown and described may have a different dimension than that shown.

Claims (6)

  1. Timed and/or manually actuatable switch lever (1) with a device adjustable by means of a toothed locking mechanism for setting the switching point of an electrical switch (7) for electromechanical time switches, characterised in that the switch lever (1) is formed of a lever part (1a) and a lever arm (1b) pivotable radially in relation to the lever part (1a), in that a spring element is effective radially between the lever part (1a) and the lever arm (1b) and in that the lever part (1a) and the lever arm (1b) are in engagement with one another by means of arresting teeth (6, 4).
  2. Switch lever according to claim 1, characterised in that the lever part (1a) and the lever arm (1b) are manufactured in one piece in plastic.
  3. Switch lever according to claim 1 and 2, characterised in that the lever arm (1b) is joined on one side, in the area of the mounting point (3) of the switch lever (1), to the lever part (1a) and in that the lever arm (1b) is springy.
  4. Switch lever according to claim 1 to 3, characterised in that the lever arm (1b) is provided at its free end with arresting teeth (4) consisting of at least one tooth.
  5. Switch lever according to claim 4, characterised in that the arresting teeth (4) on the lever arm (1b) are embodied as internal arresting teeth, in that these internal arresting teeth are disposed on a projection (4b) provided on the lever arm (1b) on one side and in that the arresting teeth (6) on the lever part (1a) are produced as end arresting teeth.
  6. Switch lever according to claim 1 to 4, characterised in that the arresting teeth acting between the lever part (1a) and the lever arm (1b) are embodied as crown wheel locking teeth.
EP91108936A 1990-06-30 1991-05-31 Switch lever with a device for adjustment of the switching point of an electric switch for electromechanic timers Expired - Lifetime EP0464376B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9007251U 1990-06-30
DE9007251U DE9007251U1 (en) 1990-06-30 1990-06-30 Switch lever with a device for adjusting the switching point of an electrical switch for electromechanical time switches

Publications (3)

Publication Number Publication Date
EP0464376A2 EP0464376A2 (en) 1992-01-08
EP0464376A3 EP0464376A3 (en) 1992-07-01
EP0464376B1 true EP0464376B1 (en) 1994-09-28

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ID=6855033

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Application Number Title Priority Date Filing Date
EP91108936A Expired - Lifetime EP0464376B1 (en) 1990-06-30 1991-05-31 Switch lever with a device for adjustment of the switching point of an electric switch for electromechanic timers

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EP (1) EP0464376B1 (en)
DE (2) DE9007251U1 (en)
ES (1) ES2064808T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2420447B (en) * 2004-11-19 2008-02-27 Invensys Controls Uk Ltd Switching mechanism
WO2008106021A1 (en) 2007-02-26 2008-09-04 Response Biomedical Corporation Comparative multiple analyte assay
CN105225894A (en) * 2015-09-30 2016-01-06 东莞市台铃车业有限公司 A kind of timing device, charger, battery case and electric motor car

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8602885U1 (en) * 1986-02-05 1986-03-27 Dieter Gräßlin Feinwerktechnik, 7742 St Georgen Electrical device switch with a device for setting and / or compensating the forward travel of the actuator
DE8715617U1 (en) * 1987-11-25 1988-03-03 Lindner Gmbh, Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg Toggle switches for electrical switchgear

Also Published As

Publication number Publication date
ES2064808T3 (en) 1995-02-01
DE59103081D1 (en) 1994-11-03
EP0464376A2 (en) 1992-01-08
EP0464376A3 (en) 1992-07-01
DE9007251U1 (en) 1990-09-06

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