EP0476211A1 - Electrical switching unit - Google Patents

Electrical switching unit Download PDF

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Publication number
EP0476211A1
EP0476211A1 EP90710023A EP90710023A EP0476211A1 EP 0476211 A1 EP0476211 A1 EP 0476211A1 EP 90710023 A EP90710023 A EP 90710023A EP 90710023 A EP90710023 A EP 90710023A EP 0476211 A1 EP0476211 A1 EP 0476211A1
Authority
EP
European Patent Office
Prior art keywords
wheel
switching elements
electrical switching
switching unit
segment
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
EP90710023A
Other languages
German (de)
French (fr)
Other versions
EP0476211B1 (en
Inventor
Eckhard Dipl.-Ing. Bube
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.)
ABUS Kransysteme GmbH
Original Assignee
ABUS WERNER BUEHNE KG
BUEHNE WERNER ABUS KG
ABUS Kransysteme GmbH
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 ABUS WERNER BUEHNE KG, BUEHNE WERNER ABUS KG, ABUS Kransysteme GmbH filed Critical ABUS WERNER BUEHNE KG
Priority to EP90710023A priority Critical patent/EP0476211B1/en
Priority to DE59006525T priority patent/DE59006525D1/en
Priority to DE9013413U priority patent/DE9013413U1/de
Publication of EP0476211A1 publication Critical patent/EP0476211A1/en
Application granted granted Critical
Publication of EP0476211B1 publication Critical patent/EP0476211B1/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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/0214—Hand-held casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/001—Thumb wheel switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
    • H01H9/041—Casings hermetically closed by a diaphragm through which passes an actuating member
    • 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
    • H01H3/0213—Combined operation of electric switch and variable impedance, e.g. resistor, capacitor
    • 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
    • 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

Definitions

  • a push-button or lever mechanism is provided between the external control elements and the internal switching elements. It is problematic to seal the internal switching elements from the external operating elements. This is done through complicated seals.
  • the wheel segment is provided as an operating part.
  • the wheel segment is connected to the deflection wheel via the connecting rod.
  • the connecting rod is thin. It can therefore be sealed by a simple sealing element.
  • the deflection wheel has at least one translation segment, via which continuously adjustable switching elements are driven.
  • the invention therefore not only enables the switching elements to be switched on and off, but also the stepless or gradual adjustment of switching elements.
  • the end of the connecting rod 8 facing away from the wheel segment 4 is connected to a deflection wheel 3.
  • the deflection wheel 3 is pivoted about its axis 31 in proportion to the pivoting angle of the wheel segment 4.
  • Electrical switching elements for example a microswitch 7, can be switched both at the end of the pivoting movement and in intermediate positions via the deflection wheel 3 and a translation segment 2 (switching cams).
  • the deflection wheel 3 thus enables switching elements, in the exemplary embodiment, a potentiometer 6, whose drive angle is greater than the adjustment angle of the wheel segment 4, to be infinitely or stepwise adjustable.

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

In a manual control unit, e.g. a suspended keying device for a crane system, a wheel segment (4) is supported outside a housing (1) such that it can pivot. The wheel segment (4) is connected via a connecting rod (8) to a deflection wheel (3). The deflection wheel (3) is connected to the electrical switching elements (6; 7), which may consist of either on-off switches or continuously variable switching elements. <IMAGE>

Description

Technisches Gebiet:

  • Die Erfindung bezieht sich auf eine elektrische Schalteinheit in einem Handbediengerät, bei dem außenliegende Bedienelemente mit innenliegenden elektrischen Schaltelementen verbunden sind.
Technical field:
  • The invention relates to an electrical switching unit in a handheld control device, in which external operating elements are connected to internal electrical switching elements.

Stand der Technik:State of the art:

Bei bekannten Handbediengeräten ist zwischen den außenliegenden Bedienelementen und den innenliegenden Schaltelementen ein Druckknopf-oder Hebelmechanismus vorgesehen. Problematisch ist, die innenliegenden Schaltelemente gegenüber den außenliegenden Bedienelementen abzudichten. Dies geschieht durch komplizierte Dichtungen.In known manual control devices, a push-button or lever mechanism is provided between the external control elements and the internal switching elements. It is problematic to seal the internal switching elements from the external operating elements. This is done through complicated seals.

Darstellung der Erfindung:

  • Hier will die Erfindung Abhilfe schaffen. Die in den Patentansprüchen beschriebene Erfindung löst die Aufgabe, das Verbindungselement zwischen dem außenliegenden Bedienelement und dem innenliegenden Schaltelement so zu optimieren, daß eine einfache Abdichtung möglich und eine sichere Abdichtung gewährleistet ist.
Presentation of the invention:
  • The invention seeks to remedy this. The invention described in the claims solves the problem of optimizing the connecting element between the external control element and the internal switching element so that a simple seal is possible and a secure seal is ensured.

Bei der Erfindung ist das Radsegment als Bedienteil vorgesehen. Das Radsegment ist über die Pleuelstange mit dem Umlenkrad verbunden. Die Pleuelstange ist dünn. Sie kann folglich durch ein einfaches Dichtungselement abgedichtet werden.In the invention, the wheel segment is provided as an operating part. The wheel segment is connected to the deflection wheel via the connecting rod. The connecting rod is thin. It can therefore be sealed by a simple sealing element.

In Weiterbildung der Erfindung weist das Umlenkrad mindestens ein Übersetzungssegment auf, über das stetig verstellbare Schaltelemente angetrieben sind. Mit der Erfindung ist also nicht nur das Ein- und Ausschalten der Schaltelemente, sondern auch das stufenlose oder auch stufenweise Verstellen von Schaltelementen möglich.In a further development of the invention, the deflection wheel has at least one translation segment, via which continuously adjustable switching elements are driven. The invention therefore not only enables the switching elements to be switched on and off, but also the stepless or gradual adjustment of switching elements.

Kurze Beschreibung der Zeichnung:

  • Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend im einzelnen beschrieben. Die einzige Figur zeigt in einem schematischem Längsschnitt eine elektrische Schalteinheit.
Brief description of the drawing:
  • An embodiment of the invention is shown in the drawing and will be described in detail below. The single figure shows a schematic longitudinal section of an electrical switching unit.

Bester Weg zur Ausführung der Erfindung:

  • In einem Gehäuse 1, bei dem es sich um das Gehäuse eines Hängetasters für eine Krananlage handeln kann, ist ein Radsegment 4 schwenkbar gelagert. Im Abstand von der Schwenkachse 41 des Radsegments 4 ist ein Ende einer Pleuelstange 8 gelagert. Die Pleuelstange durchsetzt eine Stirnwand 11 des Gehäuses 1. An der Stirnwand 11 ist die Pleuelstange 8 nach außen abgedichtet, hier gegenüber einer Mulde 12, in der das Radsegment 4 gelagert ist. Für die Abdichtung ist ein einfacher Dichtungsbalg 5 vorgesehen.
Best way to carry out the invention:
  • A wheel segment 4 is pivotally mounted in a housing 1, which can be the housing of a pendant switch for a crane system. One end of a connecting rod 8 is mounted at a distance from the pivot axis 41 of the wheel segment 4. The connecting rod passes through an end wall 11 of the housing 1. The connecting rod 8 is sealed to the outside on the end wall 11, here in relation to a trough 12 in which the wheel segment 4 is mounted. A simple sealing bellows 5 is provided for sealing.

Das dem Radsegment 4 abgewandte Ende der Pleuelstange 8 ist mit einem Umlenkrad 3 verbunden. Proportional zu dem Schwenkwinkel des Radsegments 4 ist das Umlenkrad 3 um seine Achse 31 geschwenkt. Sowohl am Ende der Schwenkbewegung als auch in Zwischenstellungen sind über das Umlenkrad 3 und ein Übersetzungssegment 2 (Schaltnocken) elektrische Schaltelemente, zum Beispiel ein Mikroschalter 7, schaltbar.The end of the connecting rod 8 facing away from the wheel segment 4 is connected to a deflection wheel 3. The deflection wheel 3 is pivoted about its axis 31 in proportion to the pivoting angle of the wheel segment 4. Electrical switching elements, for example a microswitch 7, can be switched both at the end of the pivoting movement and in intermediate positions via the deflection wheel 3 and a translation segment 2 (switching cams).

Das Umlenkrad 3 ermöglicht so, stufenlos oder stufenweise verstellbar Schaltelemente, im Ausführungsbeispiel ein Potentiometer 6, deren Antriebswinkel größer ist als der Verstellwinkel des Radsegments 4 zu verstellen.The deflection wheel 3 thus enables switching elements, in the exemplary embodiment, a potentiometer 6, whose drive angle is greater than the adjustment angle of the wheel segment 4, to be infinitely or stepwise adjustable.

Gewerbliche Verwertbarkeit:

  • Die Erfindung ist anwendbar bei allen elektrischen Schalteinheiten, bei denen innenliegende Schaltelemente über außenliegende Bedienelemente mechanisch betätigt werden; insbesondere bei Hängetastern für Krananlagen.
Commercial usability:
  • The invention is applicable to all electrical switching units in which internal switching elements are actuated mechanically via external operating elements; especially for pendant switches for crane systems.

Claims (2)

1. Elektrische Schalteinheit in einem Handbediengerät, bei dem außenliegende Bedienelemente mit innenliegenden Schaltelementen verbunden sind, dadurch gekennzeichnet, daß ein Radsegment (4) über eine Pleuelstange (8) mit einem Umlenkrad (3) verbunden ist, das seinerseits mit den elektrischen Schaltelementen (6; 7) verbunden ist.1. Electrical switching unit in a hand-held control device, in which external control elements are connected to internal switching elements, characterized in that a wheel segment (4) is connected via a connecting rod (8) to a deflection wheel (3), which in turn is connected to the electrical switching elements (6 ; 7) is connected. 2. Elektrische Schalteinheit nach Anspruch 1, dadurch gekennzeichnet, daß das Umlenkrad (3) mindestens ein Übersetzungssegment (2) aufweist, über das die Schaltelemente (6) angetrieben sind.2. Electrical switching unit according to claim 1, characterized in that the deflecting wheel (3) has at least one translation segment (2) via which the switching elements (6) are driven.
EP90710023A 1990-09-22 1990-09-22 Electrical switching unit Expired - Lifetime EP0476211B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP90710023A EP0476211B1 (en) 1990-09-22 1990-09-22 Electrical switching unit
DE59006525T DE59006525D1 (en) 1990-09-22 1990-09-22 Electrical switching unit.
DE9013413U DE9013413U1 (en) 1990-09-22 1990-09-22

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP90710023A EP0476211B1 (en) 1990-09-22 1990-09-22 Electrical switching unit
DE9013413U DE9013413U1 (en) 1990-09-22 1990-09-22

Publications (2)

Publication Number Publication Date
EP0476211A1 true EP0476211A1 (en) 1992-03-25
EP0476211B1 EP0476211B1 (en) 1994-07-20

Family

ID=40139972

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90710023A Expired - Lifetime EP0476211B1 (en) 1990-09-22 1990-09-22 Electrical switching unit

Country Status (2)

Country Link
EP (1) EP0476211B1 (en)
DE (2) DE9013413U1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654415A (en) * 1970-09-24 1972-04-04 Columbus Mckinnon Corp Pendant hoist control device
GB2046525A (en) * 1979-04-06 1980-11-12 Ml Aviation Co Ltd Manually operable electric switch
DE3204423A1 (en) * 1982-02-09 1983-08-18 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Electrical stepping switch
US4771145A (en) * 1987-09-08 1988-09-13 Davis Jr Kenneth E Light switch extension

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654415A (en) * 1970-09-24 1972-04-04 Columbus Mckinnon Corp Pendant hoist control device
GB2046525A (en) * 1979-04-06 1980-11-12 Ml Aviation Co Ltd Manually operable electric switch
DE3204423A1 (en) * 1982-02-09 1983-08-18 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Electrical stepping switch
US4771145A (en) * 1987-09-08 1988-09-13 Davis Jr Kenneth E Light switch extension

Also Published As

Publication number Publication date
DE9013413U1 (en) 1992-01-23
DE59006525D1 (en) 1994-08-25
EP0476211B1 (en) 1994-07-20

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