EP0004873B1 - Verklinkungsanordnung mit zwei unter Reibung relativ zu einander bewegbaren Teilen - Google Patents

Verklinkungsanordnung mit zwei unter Reibung relativ zu einander bewegbaren Teilen Download PDF

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Publication number
EP0004873B1
EP0004873B1 EP19790100836 EP79100836A EP0004873B1 EP 0004873 B1 EP0004873 B1 EP 0004873B1 EP 19790100836 EP19790100836 EP 19790100836 EP 79100836 A EP79100836 A EP 79100836A EP 0004873 B1 EP0004873 B1 EP 0004873B1
Authority
EP
European Patent Office
Prior art keywords
lever
component
supported
synthetic resin
arrangement
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
Application number
EP19790100836
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0004873A1 (de
Inventor
Werner Troebel
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP0004873A1 publication Critical patent/EP0004873A1/de
Application granted granted Critical
Publication of EP0004873B1 publication Critical patent/EP0004873B1/de
Expired legal-status Critical Current

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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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release

Definitions

  • the invention relates to an arrangement comprising two parts which can be moved relative to one another by friction, in which the interacting surfaces of one part consist of a thermosetting plastic and the other part consist of a thermoplastic.
  • thermosetting plastic for one part
  • thermoplastic for the other part
  • the invention has for its object to provide a latching arrangement using the specified pairing of materials, in which in the idle state one part, which is under the action of an energy accumulator, is supported by the other part.
  • a latching arrangement using the specified pairing of materials, in which in the idle state one part, which is under the action of an energy accumulator, is supported by the other part.
  • it is important with a cladding arrangement that the interacting surfaces do not change under the stress of the energy accumulator, so that the properties, i. H. the force required to release the latch and the path required for this remain unchanged over a large number of operating processes.
  • this object is achieved by the use of the known arrangement as a latching arrangement in such a design that one part is designed as a part to be supported under the action of an energy store and the other part is designed as a rotatably mounted latch lever, the thermoplastic material being the one with the The region of the part to be supported and the thermosetting plastic cooperating with the ratchet lever are assigned to the region of the ratchet lever which interacts with the part to be supported and is arranged with an edge concentrically to the bearing axis of the ratchet lever.
  • thermosetting plastic is deformed to a much lesser extent in relation to the thermoplastic plastic under the influence of the energy accumulator.
  • thermoplastics tend to flow under pressure and therefore to adapt to a harder counterpart.
  • the rotatably mounted ratchet lever with its area arranged concentrically to the bearing axis is to a certain extent depicted in the movably arranged part and that both parts therefore adjust to one another.
  • the support surface of the latch lever will be depicted at different depths in the movably arranged part. This process takes place once when the latch arrangement is assembled, so that the latch arrangement subsequently has the same properties.
  • latching arrangements of the type described above in mechanical and electromechanical technology can be used, for example, to release a force store in a controlled manner depending on influencing variables such as distance, temperature, electrical current or voltage.
  • An example of this are latching arrangements in electrical circuit breakers, the switching pieces of which are to be disconnected when a specific current flowing through them is reached.
  • Another example are the auxiliary releases that can be used as accessories in the circuit breakers mentioned, in which the release size itself is not sufficient to unlatch the circuit breaker and an energy store is therefore required.
  • Metal parts have previously been used for auxiliary releases in the form of undervoltage releases for low-voltage circuit breakers (company publications General Electric GET-2779 D, page 8 and Ottermill MBR 1001/73).
  • the shape of these parts generally requires production with multiple machining operations, e.g. B. cutting, bending, punching, grinding, polishing and subsequent electroplating.
  • machining operations e.g. B. cutting, bending, punching, grinding, polishing and subsequent electroplating.
  • FIG. 1 and 2 show an undervoltage release with energy storage for a low-voltage circuit breaker in two mutually perpendicular views.
  • a ratchet lever is shown in two views and a section.
  • the undervoltage release 1 shown in FIGS. 1 and 2 has a carrier 2 made of a plastic for all movable or other active parts to be described.
  • the carrier 2 has approximately the shape of a rectangular in the side view gene triangle with extensions 8 and 9 projecting from the one triangle side approximately vertically, which serve to hold the undervoltage release 1 in the housing of a circuit breaker.
  • an electromagnet 6 is fastened between the ribs 4 and 5 and has a yoke 7 and a plunger 10 with a return spring 11 and a guide pin 12.
  • the electromagnet 6 can be connected to a voltage source to be monitored by means of connecting lines 14.
  • connection points of the coil wires of the electromagnet 6 and the connecting lines 14 are arranged on opposite side surfaces 15 and 16 of the carrier 2 near the triangular side 19. As shown in FIG. 1, there is a soldering eye 17 on the side surface 16 of the carrier 2.
  • a protective shield 20 is formed on the carrier 2, which protects the guide pin 12 of the plunger armature 10 against dust, foreign bodies or similar influences, which in the direction of the Arrow 21 (Fig. 1) can occur.
  • the carrier 2 is forked in the region of both corners to form bearing points.
  • Fork arms 23 and 24 provided with aligned bores serve for jointly mounting an angled lever 25 and a reset lever 26 on a bearing pin 27, while fork arms 28 and 30 serve for mounting a ratchet lever 31 on a bearing pin 32 and also for receiving this bearing pin with aligned bores are provided.
  • the pawl lever 31 consists of a thermosetting plastic, for. B. a molding material based on a polyester resin.
  • the angled lever 25, however, consists of a thermoplastic material.
  • the one with bearing openings 33 and 34 leg 35 of the angled lever 25 has side walls 36 and 37 and a window-like opening 38 in which the reset lever 26 is movable.
  • the side wall 36 has an abutment 40 on the inside for a leg of a spiral spring 41 (FIG. 1) and on the outside concentrically to the bearing opening 34 a cylindrical extension 42 as a support for windings of a further spiral spring 43 which is used to couple the latch lever 31 to the plunger anchor 10 Electromagnet 6 is used.
  • the abutment 40 acts as a work surface for introducing the restoring force into the angled lever 25, as will be explained.
  • the other leg 44 of the angled lever 25 extends approximately in the extension of the side wall 37 of the leg 35 and is at an angle to the latter of approximately 60 °. At its front end, the leg 44 is bent in such a way that it can come into contact with a working surface 45 with an end surface 46 of the plunger anchor 10. Approximately where the leg 35 of the angled lever 25 merges into the other leg 44, there is a latching surface 47 which interacts with the latch lever 31. This has a concentric to its bearing axis 49 cylindrical part 48 with an edge 50.
  • the pawl lever 31 has a cam 51 as an abutment of a leg 52 of the spiral spring 43, which surrounds the cylindrical extension 42 of the angled lever 25 with several turns and which is supported on the carrier 2 by a further leg 53.
  • the spiral spring 43 ensures constant contact and thus a coupling of the pawl lever 31 with its working surface 54 on the end surface 46 of the plunger anchor 10.
  • the spiral spring 41 has two sections 55 and 56 with oppositely wound turns. These sections are continuously wound and connected by a spring arm 57. Furthermore, the sections 55 and 56 have end legs 60 and 61. The section 55 acts as a spring force accumulator, while the section 56 forms the transmission spring which is effective during the resetting.
  • the spiral spring 41 rests with the spring arm 57 on the reset lever 26, while one end leg 60 rests on the carrier 2 and the other end leg 61 rests on the abutment 40 of the angled lever 25 supports.
  • the different winding directions of the sections 55 and 56 and the different number of spring windings ensure that, on the one hand, a pretensioning force on the angled lever 25 in the direction of a stop 62 of the extension 9 of the carrier 2 and, on the other hand, the return lever 26 is biased relative to the angled lever 25 , on which the reset lever 26 abuts with a stop surface 63.
  • the spring forces are dimensioned such that when a restoring force acts on a working surface 64 of the restoring lever 26, there is no relative movement between the restoring lever 26 and the angled lever 25 until it engages with its working surface 45 the plunger anchor 10 against its restoring spring 11 by a stop has set a limited end position. During this movement, the abutment 40 of the angled lever 25 acts as the working surface of the restoring force transmitted by the spiral spring 41. If the part of the circuit breaker acting on the working surface 64 executes a further movement, the reset lever 26 with its stop surface 63 is lifted off the angled lever 25 and continues to move independently of the common bearing.
  • the undervoltage release 1 is shown in its latched operating state, in which the electromagnet 6 is energized and the plunger armature 10 is attracted.
  • the angled lever 25 is supported with its latching surface 47 on the cylindrical part 48 of the latch lever 31.
  • the angled lever 25 is under the Effect of the spring force accumulator formed by section 55 of the spiral spring 41. If the voltage to be monitored applied to the electromagnet 6 is reduced to a certain predetermined level, the return spring 11 of the plunger 10 overcomes the restoring force exerted on the ratchet lever 31 by the spiral spring 43 until the ratchet lever 31 is turned so far that the latching surface 47 of the angled lever 25 derived from the cylindrical part 48 of the pawl lever 31.
  • the angled lever 25 is suddenly released and pivoted counterclockwise in Fig. 1.
  • the stop 62 of the extension 9 of the carrier 2 limits this pivoting movement after the triggering.
  • a trip member of a circuit breaker can be actuated from a working surface 65 of the leg 44 of the angled lever 25.
  • the invention can also be realized with changed proportions and modified shapes of the parts.
  • the dimensioning of the lengths of the legs of the angled lever and the angles enclosed by the legs as well as the strength of the springs and the shape of the carrier are subject to adaptation to the circuit breaker which is to be equipped with an undervoltage release.
  • a triangular shape of the carrier other than the one described can also be expedient.
  • any other types of electromagnet can be used instead of the plunger magnet, provided that they are suitable for undervoltage releases. Otherwise, the same good properties can be achieved in the interaction of the angled lever 25 and the ratchet lever 31 if only the directly interacting regions, i. H. the latching surface 47 and the cylindrical support surface 48 are made from the specified materials. This can e.g. B. done by inserting appropriate parts in the lever body made of other material.

Landscapes

  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)
EP19790100836 1978-04-17 1979-03-19 Verklinkungsanordnung mit zwei unter Reibung relativ zu einander bewegbaren Teilen Expired EP0004873B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2817153 1978-04-17
DE19782817153 DE2817153C2 (de) 1978-04-17 1978-04-17 Verklinkungsanordnung mit einem drehbaren Klinkenhebel, insbesondere für Niederspannungs-Leistungsschalter

Publications (2)

Publication Number Publication Date
EP0004873A1 EP0004873A1 (de) 1979-10-31
EP0004873B1 true EP0004873B1 (de) 1982-12-29

Family

ID=6037490

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790100836 Expired EP0004873B1 (de) 1978-04-17 1979-03-19 Verklinkungsanordnung mit zwei unter Reibung relativ zu einander bewegbaren Teilen

Country Status (3)

Country Link
EP (1) EP0004873B1 (enrdf_load_stackoverflow)
JP (1) JPS54142580A (enrdf_load_stackoverflow)
DE (1) DE2817153C2 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846676B1 (de) * 1978-10-26 1979-07-05 Siemens Ag Schaltschloss mit Kniehebel
JPH0392412A (ja) * 1989-09-04 1991-04-17 Nissan Motor Co Ltd 能動型サスペンション
JP2003093634A (ja) * 2001-09-25 2003-04-02 Unie Kiki:Kk 遊技機の障害部材調節装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE556483A (enrdf_load_stackoverflow) * 1956-04-26
US3012800A (en) * 1959-06-23 1961-12-12 Gen Electric Trip mechanism
FR2291603A1 (fr) * 1974-11-15 1976-06-11 Saparel Dispositif de protection contre les surcharges de courant
FR2350679A1 (fr) * 1976-05-04 1977-12-02 Merlin Gerin Disjoncteur electrique basse tension a organe d'accrochage en materiau plastique
JPS5333371A (en) * 1976-09-09 1978-03-29 Terasaki Denki Sangyo Kk Circuit breaker spring actuator
DE2737020C2 (de) * 1977-08-15 1979-04-12 Siemens Ag, 1000 Berlin Und 8000 Muenchen Vorrichtung für stufenweisen Bewegungsablauf

Also Published As

Publication number Publication date
JPS648406B2 (enrdf_load_stackoverflow) 1989-02-14
JPS54142580A (en) 1979-11-06
DE2817153B1 (de) 1979-03-22
DE2817153C2 (de) 1982-12-30
EP0004873A1 (de) 1979-10-31

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