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EP0245176B1 - Multipolarer Drehschalter, insbesondere Nockenschalter, in Paketform und Verfahren zu seiner Herstellung - Google Patents

Multipolarer Drehschalter, insbesondere Nockenschalter, in Paketform und Verfahren zu seiner Herstellung Download PDF

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Publication number
EP0245176B1
EP0245176B1 EP87401031A EP87401031A EP0245176B1 EP 0245176 B1 EP0245176 B1 EP 0245176B1 EP 87401031 A EP87401031 A EP 87401031A EP 87401031 A EP87401031 A EP 87401031A EP 0245176 B1 EP0245176 B1 EP 0245176B1
Authority
EP
European Patent Office
Prior art keywords
parts
projections
tabs
switch
walls
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
EP87401031A
Other languages
English (en)
French (fr)
Other versions
EP0245176A1 (de
Inventor
Maurice Schaeffer
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 France SAS
Baco Constructions Electriques SA
Original Assignee
Baco Constructions Electriques SA
Entrelec SAS
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 Baco Constructions Electriques SA, Entrelec SAS filed Critical Baco Constructions Electriques SA
Publication of EP0245176A1 publication Critical patent/EP0245176A1/de
Application granted granted Critical
Publication of EP0245176B1 publication Critical patent/EP0245176B1/de
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
    • 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
    • H01H19/64—Encased switches adapted for ganged operation when assembled in a line with identical switches, e.g. stacked switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/042—Snap coupling; Snap mounting

Definitions

  • the invention relates to a multi-pole rotary switch, in particular a cam switch produced in the form of stacked wafers, the fixed contact and connection elements of which are housed in chambers, comprised between end walls and intermediate walls, these wafers being formed by parts molded from a plastic material which are juxtaposed and rigidly connected with one another in order to constitute a compact support block, longitudinally traversed in the center by a control shaft.
  • the molded parts have, for their junction during assembly, lugs or claws which, during assembly, extend laterally on the neighboring molded parts and are inserted behind corresponding projections.
  • Rotary switches of the above-mentioned type are already frequently used as control devices incorporated alongside other control and signaling units in switchboards, control consoles, or the like.
  • the stack of molded parts forming the wafers is generally fixed only at one end to a support element and must therefore have sufficient robustness and rigidity of its own having regard to the stresses coming from the shaft. cam control, to guarantee flawless operation even after a long service life.
  • the invention aims to make it possible to obtain the advantage of an easy and tool-free preliminary assembly by the use of the means mentioned above and it also seeks to allow to simultaneously create the condition necessary for the realization of a final assembly of the parts in a rigid block, which is however non-removable without destroying the molded parts which constitute it; however, the cost savings achieved lower the overall cost to such an extent that outright exchange of the complete switch can be taken into account, in the rare cases of modification or extension of the switching functions, previously achievable by a reconstruction.
  • the invention therefore provides a rotary switch, in particular with cams, of the multipolar type, formed of stacked wafers and having contact elements and connection elements housed in parts, of module type, provided with chambers formed between end walls and intermediate walls of the parts, these parts molded in a thermoplastic material, being provided with flat lugs and complementary assembly projections , the legs of a part, provided with protruding orifices, projecting laterally on at least one of the neighboring parts to fit behind the complementary projections of at least one neighboring part and to be embedded therein, the parts thus assemblies forming a compact load-bearing block traversed in its center by a cam control shaft, the switch being composed by means of parts whose walls are provided with projections, which are themselves provided with ramps intended to promote the sliding of the legs of another piece on them at insertion, characterized in that the walls have ribs and grooves associated with said projections and o rientées in the direction of sliding of the workpiece legs to limit the mutual attachment of the legs on the projections to
  • the cam switch illustrated in FIG. 1 is a 12-pole model and for this purpose comprises a block of modules 10 consisting of two end modules 12, 14, and five intermediate modules 16 of identical design.
  • the end modules 12, 14, and the intermediate modules 16 are designed in the form of molded parts made of thermoplastic material and constitute end and intermediate walls for the chambers which they limit laterally (FIG. 2) and in which, as specified below, are housed the contact and connection elements as well as the cams 18 firmly fixed on a shaft of square section 20, carried by bearings in the two end modules 12, 14, and which can pivot together step by step in a known manner using a joystick 22.
  • each of these chambers which can be either opening or closing contacts, each contact consisting of two identical fixed elements 24 which are mechanically and electrically connected by conductive bars 26 to connection terminals 28, and to a movable contact bridge 30 carried by a pusher 32 whose inner end ending in point 34 is kept pressed against the cam disc 18 which has a profiled recess 38, and whose the other end is under the influence of a helical compression spring 36.
  • the connection terminals are provided with clamping screws 40.
  • the intermediate modules 16 have a basic shape in principle square or rectangular and have a central opening 42 housing the shaft of square section 20.
  • the opening 42 is mainly located in a partition transverse 44 forming a separation and to which is attached to one of the ends a front wall 48 having two pairs of legs 50 directed in opposite directions.
  • the front walls 46, 48 are connected on either side of the opening 42 by longitudinal walls 54 having recesses 52, the outer surface of which forms housings 56 receiving the connection terminals 28 by virtue of the ribbed webs 58.
  • the end modules 12, 14, are provided identical, on the side facing the intermediate modules, to the molded parts 16 and each carry in a similar manner on the wall corresponding to the inclinal wall 48, only two legs 50.
  • the end modules 12, 14 and the intermediate modules 16 stacked between them are each offset augularly by 180 ° relative to the square section shaft 20 during assembly, so that two tabs 50 of the same orientation of each of the molded parts 12, 14, 16, protrude from the front wall 46 of the contiguous molded part. It is obvious that the two legs 50 remaining available on each molded part extend in the same way on the front walls of the molded part contiguous on the other side.
  • the front walls 46 are provided, in the zones 60 covered by the lugs 50, with a recess in which there are two pairs of projections 62 with sliding edges in the form of a ramp 64, on which the lugs 50 of the intermediate molded parts 16 or end modules 12, 14, slide during assembly to finally be inserted behind the projections 62 through the holes 66 in the tabs 50.
  • an ultrasound generator (not shown) is applied by its sonotrodes to the legs 50 and therefore , the thermoplastic material of the molded parts heats up in the region of the ribs 68 and the grooves 70 as well as the tabs 50 which are supported thereon, from where the material melts and welding.
  • the material of the ribs 68 flows into the grooves 70 under the pressure of the legs 50, the latter then being able to fully relax and thus form a practically flat surface on the two sides of the stack of modules, hence an assembly forming a rigid block which has, even in the case of a fairly large length, the robustness and stability required in the face of the stresses arising from the control of the switching contacts, throughout the lifetime of the switch.
  • the intermediate modules 16 have on two sides, and the end modules 12, 14, on one side each, pins 72 and orifices 74 arranged asymmetrically with respect to a median plane located between the walls 48 or 46 bearing the legs 50 or the projections 62 respectively, so that they can only be inserted into one another after a 180 ° offset from the square control shaft 20, of the molded parts neighbors.
  • pins 72 and orifices 74 arranged asymmetrically with respect to a median plane located between the walls 48 or 46 bearing the legs 50 or the projections 62 respectively, so that they can only be inserted into one another after a 180 ° offset from the square control shaft 20, of the molded parts neighbors.
  • the end module 14 is divided into two parts 14a and 14b by a joint line, forming between them in a known manner a chamber (not shown) intended to accommodate a notch mechanism for the control shaft, allowing indexing of the switch in specific positions.
  • the joining of the parts 14a, 14b, is carried out in principle in the same way as for the modules 12, 14, with the intermediate modules 16, it being specified however that in place of the legs 50 arranged side by side, provision is made through lugs 75 with three passages corresponding to the orifices 66, the median passage having no particular function.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Manufacture Of Switches (AREA)

Claims (3)

  1. Mehrpoliger Drehschalter, insbesondere mit Nocken, der aus gestapelten Scheiben besteht, die Kontaktelemente und Anschlußelemente aufweisen, welche in modulförmigen Bauteilen (12, 14, 16) mit Kammern untergebracht sind, die zwischen Endwänden und Zwischenwänden der Bauteile ausgebildet sind, wobei die aus thermoplastischem Material gegossenen Bauteile mit flachen Füßen (50) und komplementären Montagevorsprüngen (62) ausgestattet sind und die Füße eines Bauteils, die mit Löchern (66) für die Vorsprünge versehen sind, seitlich über mindestens eines der benachbarten Bauteile vorspringen, um sich hinter die komplementären Vorsprünge mindestens eines benachbarten Bauteils zu schieben und dort einzurasten, wobei die so vereinigten Bauteile einen kompakten Trägerblock bilden, der in seiner Mitte von einer Betätigungswelle (4) mit Nocken durchdrungen wird, wobei der Schalter aus Bauteilen zusammengesetzt ist, deren Wände mit Vorsprüngen (62) versehen sind, die ihrerseits mit Rampen (64) versehen sind, um beim Zusammensetzen das Gleiten der Füße eines anderen Bauteils auf ihnen zu erleichtern, dadurch gekennzeichnet, daß die Wände Rippen (68) und Nuten (70) aufweisen, die den Vorsprüngen zugeordnet und in der Gleitrichtung der Bauteilfüße ausgerichtet sind, um das gegenseitige Einhaken der Füße an den Vorsprüngen in einer Stellung anzuhalten, die das gegenseitige Verriegeln der Bauteile vor einem teilweisen Verschmelzen der Rippen, Nuten, Füße und/oder Vorsprüngen verhindert.
  2. Mehrpoliger Drehschalter nach Anspruch 1, dadurch gekennzeichnet, daß er Bauteile oder Zwischenmodule (16) aufweist, die jeweils zwei Paare von Füßen (50) auf der einen Seite und zwei Paare von Vorsprüngen (62) auf der entgegengesetzten Seite für ein um 180° relativ zur Betätigungswelle (4) versetztes Anbauen an benachbarte Bauteile aufweist.
  3. Mehrpoliger Drehschalter nach mindestens einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, daß er ein Endbauteil, bestehend aus zwei Teilen (14A, 15B), aufweist, wobei die Teile zwischen sich eine Kammer zur Aufnahme eines Mechanismus mit Winkelpositionskerben für die Steuerwelle (4) begrenzen, die miteinander durch die gleichen Mittel wie die beiden nächstliegenden Bauteile verbunden sind.
EP87401031A 1986-05-06 1987-05-06 Multipolarer Drehschalter, insbesondere Nockenschalter, in Paketform und Verfahren zu seiner Herstellung Expired - Lifetime EP0245176B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8606525 1986-05-06
FR868606525A FR2598553B1 (fr) 1986-05-06 1986-05-06 Commutateur rotatif multipolaire, en particulier commutateur a cames sous forme de galettes empilees, et procede d'execution de ce dernier

Publications (2)

Publication Number Publication Date
EP0245176A1 EP0245176A1 (de) 1987-11-11
EP0245176B1 true EP0245176B1 (de) 1994-01-12

Family

ID=9334965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87401031A Expired - Lifetime EP0245176B1 (de) 1986-05-06 1987-05-06 Multipolarer Drehschalter, insbesondere Nockenschalter, in Paketform und Verfahren zu seiner Herstellung

Country Status (7)

Country Link
US (1) US4851620A (de)
EP (1) EP0245176B1 (de)
JP (1) JP2571806B2 (de)
DE (1) DE3788746T2 (de)
ES (1) ES2049731T3 (de)
FR (1) FR2598553B1 (de)
WO (1) WO1987007075A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2923736B2 (ja) * 1994-08-18 1999-07-26 春日電機株式会社 多段階操作インタ−ロック付押釦開閉器
US5721449A (en) * 1996-02-20 1998-02-24 Advance Controls, Inc. Cam operated inverter bypass safety switch
DE10313359A1 (de) * 2003-03-25 2004-10-21 BSH Bosch und Siemens Hausgeräte GmbH Schaltervorrichtung
ES2383293T3 (es) * 2008-04-01 2012-06-20 Ewac Holding B.V. Conmutador eléctrico rotatorio
USD738322S1 (en) 2012-07-16 2015-09-08 Abb Oy Cam switch

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3200208A (en) * 1962-07-02 1965-08-10 Oak Mfg Co Rotary selector switch construction with rotor interlocking means
US3251956A (en) * 1963-04-09 1966-05-17 Gemco Electric Co Electric switch
GB1058681A (en) * 1964-01-27 1967-02-15 Cie Electro Mechanique Hermetically sealed electric snap switch
DE2233877A1 (de) * 1972-07-10 1974-01-31 Elektroprschistroj N P Steller fuer hilfskreise
DE7413088U (de) * 1974-04-13 1974-07-25 Schoeller & Co Grundplatte für Paketschalter
US4029924A (en) * 1974-10-10 1977-06-14 Westinghouse Electric Corporation Contact block interlock for electric switch
US4029914A (en) * 1976-04-14 1977-06-14 A P Products Incorporated Multiple switch mechanism
JPS5480572A (en) * 1977-12-09 1979-06-27 Tokyo Sokutei Kizai Kk Rotary switch
DE7913111U1 (de) * 1979-05-07 1982-09-09 Starkstrom Gummersbach GmbH, 5277 Marienheide Elektrisches Schaltgerät, insbesondere Nockenschalter
FR2572580A1 (fr) * 1984-10-26 1986-05-02 Alsthom Cgee Commutateur electrique etage a commande rotative

Also Published As

Publication number Publication date
JPS63503257A (ja) 1988-11-24
WO1987007075A1 (fr) 1987-11-19
DE3788746D1 (de) 1994-02-24
JP2571806B2 (ja) 1997-01-16
DE3788746T2 (de) 1994-04-28
FR2598553B1 (fr) 1994-09-16
ES2049731T3 (es) 1994-05-01
FR2598553A1 (fr) 1987-11-13
US4851620A (en) 1989-07-25
EP0245176A1 (de) 1987-11-11

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