EP0662702A1 - Liaison de levier d'interrupteur - Google Patents

Liaison de levier d'interrupteur

Info

Publication number
EP0662702A1
EP0662702A1 EP94810709A EP94810709A EP0662702A1 EP 0662702 A1 EP0662702 A1 EP 0662702A1 EP 94810709 A EP94810709 A EP 94810709A EP 94810709 A EP94810709 A EP 94810709A EP 0662702 A1 EP0662702 A1 EP 0662702A1
Authority
EP
European Patent Office
Prior art keywords
pin
shift lever
connection according
lever connection
slot
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
EP94810709A
Other languages
German (de)
English (en)
Other versions
EP0662702B1 (fr
Inventor
Thomas Rust
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.)
ABB CMC Carl Meier AG
Original Assignee
CMC Carl Maier and Cie AG
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 CMC Carl Maier and Cie AG filed Critical CMC Carl Maier and Cie AG
Publication of EP0662702A1 publication Critical patent/EP0662702A1/fr
Application granted granted Critical
Publication of EP0662702B1 publication Critical patent/EP0662702B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H01H71/1018—Interconnected mechanisms with only external interconnections

Definitions

  • the invention is based on a shift lever connection according to the preamble of claim 1. With such a shift lever connection, a synchronous actuation of the poles of a multi-pole switching device is achieved.
  • a switching lever connection is preferably used in switching devices, such as, in particular, line fault current or motor protection switches of low-voltage distributors. Such switches often have two, three, four or possibly even more than four identical poles.
  • the invention relates to a state of the art of shift lever connection, as is shown in the manual "Innovative installation with smissline” published by the patent applicant in autumn 1989, for example on page 6.
  • the shift lever connection according to the prior art contains a bridge part designed as a U-shaped sheet. This plate is placed on two or three lever arms of the switching lever of a two- or three-pole circuit breaker, which can be pivoted about a common axis and each designed as an actuating handle, and thus causes the rigid coupling of the switching levers and thus a synchronous actuation of the individual switch poles.
  • the manufacture and assembly of such a bridge part is relatively complex.
  • DE-A-25 40 745 describes a shift lever connection in which the individual shift levers 6 are connected to one another via a bridge part 9 with molded knobs 8.
  • the knobs 8 have lugs 15, which are locked in place by fixing the bridge part 9 in windows 14 of the centrally guided recesses 7 of the shift lever.
  • Such a shift lever connection is relatively complex since the complicated, window-like, centrally guided recess has to be made in each shift lever, and since the bridge part has to be provided with knobs and locking lugs.
  • the invention is based on the object of specifying a shift lever connection of the type mentioned at the outset which can be produced in a simple manner and in a manner suitable for mass production.
  • the shift lever connection according to the invention is characterized in that it can be manufactured extremely simply and inexpensively in a process suitable for mass production by simply pressing the pin into the expansion parts of the shift lever to be connected.
  • the connection produced in this way is characterized by high strength and a high level of operational reliability even under heavy loads. In addition, it does not affect the manageability of the shift lever handles or the aesthetic design of the multi-pole switching device.
  • this shift lever connection according to the invention is completely independent of the nature of the shift lever and can be easily adapted to switch poles of different widths and to switching devices with any number of switch poles by simply cutting the pin to length.
  • the shift lever connection shown in FIGS. 1 and 2 has a pin 1 and three shift levers 3 pivotable about a common axis 2 of the switching device, not shown.
  • the shift levers 3 are formed from a plastic, typically a thermoplastic, for example based on an amide, and are each pivoted about the axis 2 in a pole housing of the switching device, which is also not shown.
  • the three poles can be, for example, the three phases of a three-phase system.
  • Each of the three shift levers 3 is designed with two arms and each has one with an actuating element, not shown lever arm 4 acting on a contact arrangement and a further lever arm designed as a handle 5 and guided outward from the pole housing of the switching device.
  • the lever handles each have an elastically deformable expansion part 6 and the pin 1, which is aligned parallel to the pivot axis 2, is pressed into the expansion parts 6.
  • two flexible legs 8 spaced apart from one another by a slot 7 are formed in the handle 5 as an expansion part 6.
  • the slot 7 has an undercut 9 adapted to the profile of the pin 1, which is provided in the region of the free ends of the two legs 8.
  • the opposite free ends of the legs 8 each have a beveled surface 10 which is inclined towards the interior of the slot 7.
  • the two beveled surfaces form an insertion aid for pin 1 when assembling the shift lever connection.
  • the slot 7 is guided in the axial direction through the shift lever 3 and in the radially outward direction to the end of the lever handle 5 facing away from the pivot axis 2.
  • the beveled surfaces 10 intersect with the boundary surfaces of the slot 7 guided on the handle 5 into two edges which delimit the undercut 9 towards the outside.
  • the undercut 9 initially widens behind these two edges and then tapers continuously down to the width of the slot 7.
  • the structure of the pin 1 can be seen from FIG.
  • This pin is preferably cylindrical. Instead of a round profile, it can also have any other profile that fits into the undercut 9 of the slot 7 and, for example, can have an elliptical, semicircular, square or rectangular cross section. It is particularly important that after the legs 8 of the expansion part 6 have been spread open, the pin in the undercut 9 is stored so that it can no longer be removed from the outside without great effort. Depending on the diameter of the pin 1 and the size of the undercut, the pin 1 is spread and clamped in the undercut 9 or is only kept spread. These different brackets can be caused by unavoidable manufacturing tolerances.
  • the pin 1 has at least one thickening 11 arranged between two switching levers.
  • This thickening 11 can be produced particularly easily and inexpensively by the notch effect.
  • the embossing of, for example, three or four notches 12 is sufficient to produce a thickening 11 which prevents the lateral removal of the pin 1 with great certainty.
  • the shift lever connection according to the invention can be produced particularly simply and inexpensively. On the one hand, this is possible because the slot 7 and the undercut 9 can be molded into the tool used to manufacture the generally injection-molded shift lever 3 without additional effort. On the other hand, this is also possible because the pin 1 can be easily adapted to a desired overall length by cutting to length and the cut pin can be fitted into the slots 7 or the undercuts 9 transversely to the swivel axis 2 without rigid assembly of the three shift levers 3 .

Landscapes

  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
EP19940810709 1994-01-06 1994-12-08 Liaison de levier d'interrupteur Expired - Lifetime EP0662702B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3394 1994-01-06
CH33/94 1994-01-06

Publications (2)

Publication Number Publication Date
EP0662702A1 true EP0662702A1 (fr) 1995-07-12
EP0662702B1 EP0662702B1 (fr) 1998-02-25

Family

ID=4177829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940810709 Expired - Lifetime EP0662702B1 (fr) 1994-01-06 1994-12-08 Liaison de levier d'interrupteur

Country Status (2)

Country Link
EP (1) EP0662702B1 (fr)
DE (1) DE59405307D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0849760A3 (fr) * 1996-12-21 1998-07-01 AEG Niederspannungstechnik GmbH & Co. KG Liaison mécanique pour leviers de commande d'un appareil de coupure multipolaire
WO2001069628A1 (fr) * 2000-03-17 2001-09-20 Aeg Niederspannungstechnik Gmbh & Co., Kg Assemblage de manettes
DE10013144A1 (de) * 2000-03-17 2001-10-04 Aeg Niederspannungstech Gmbh Knebelverbindung
DE10048329C1 (de) * 2000-09-28 2002-07-25 Aeg Niederspannungstech Gmbh Stiftaufnahme

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3299231A (en) * 1966-01-28 1967-01-17 Heinemann Electric Co Tie pin with improved fastening means for circuit breaker handles
DE2540745B1 (de) * 1975-09-12 1976-06-24 Siemens Ag Mehrpoliger Leitungsschutzschalter
CH604363A5 (en) * 1976-09-10 1978-09-15 Landis & Gyr Ag Electrical cut=out relay
EP0208292A2 (fr) * 1985-07-08 1987-01-14 Mitsubishi Denki Kabushiki Kaisha Disjoncteur
US5109142A (en) * 1991-02-28 1992-04-28 General Electric Company Circuit breaker handle tie for automated assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3299231A (en) * 1966-01-28 1967-01-17 Heinemann Electric Co Tie pin with improved fastening means for circuit breaker handles
DE2540745B1 (de) * 1975-09-12 1976-06-24 Siemens Ag Mehrpoliger Leitungsschutzschalter
CH604363A5 (en) * 1976-09-10 1978-09-15 Landis & Gyr Ag Electrical cut=out relay
EP0208292A2 (fr) * 1985-07-08 1987-01-14 Mitsubishi Denki Kabushiki Kaisha Disjoncteur
US5109142A (en) * 1991-02-28 1992-04-28 General Electric Company Circuit breaker handle tie for automated assembly

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0849760A3 (fr) * 1996-12-21 1998-07-01 AEG Niederspannungstechnik GmbH & Co. KG Liaison mécanique pour leviers de commande d'un appareil de coupure multipolaire
WO1998028765A1 (fr) * 1996-12-21 1998-07-02 Aeg Niederspannungstechnik Gmbh & Co. Kg Assemblage de manettes pour appareil de commutation multipolaire
DE19654015C2 (de) * 1996-12-21 2001-01-04 Aeg Niederspannungstech Gmbh Knebelverbindung für ein mehrpoliges Schaltgerät
WO2001069628A1 (fr) * 2000-03-17 2001-09-20 Aeg Niederspannungstechnik Gmbh & Co., Kg Assemblage de manettes
DE10013106C1 (de) * 2000-03-17 2001-10-04 Aeg Niederspannungstech Gmbh Knebelverbindung
DE10013144A1 (de) * 2000-03-17 2001-10-04 Aeg Niederspannungstech Gmbh Knebelverbindung
DE10013144B4 (de) * 2000-03-17 2006-06-22 Aeg Niederspannungstechnik Gmbh & Co Kg Knebelverbindung
CN100459011C (zh) * 2000-03-17 2009-02-04 Aeg低压技术股份有限两合公司 锁紧手柄连接装置
DE10048329C1 (de) * 2000-09-28 2002-07-25 Aeg Niederspannungstech Gmbh Stiftaufnahme

Also Published As

Publication number Publication date
DE59405307D1 (de) 1998-04-02
EP0662702B1 (fr) 1998-02-25

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