EP0461532B1 - Switch disc of a timer - Google Patents

Switch disc of a timer Download PDF

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Publication number
EP0461532B1
EP0461532B1 EP91109151A EP91109151A EP0461532B1 EP 0461532 B1 EP0461532 B1 EP 0461532B1 EP 91109151 A EP91109151 A EP 91109151A EP 91109151 A EP91109151 A EP 91109151A EP 0461532 B1 EP0461532 B1 EP 0461532B1
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EP
European Patent Office
Prior art keywords
switching
switching slide
disk according
time disk
time
Prior art date
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Expired - Lifetime
Application number
EP91109151A
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German (de)
French (fr)
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EP0461532A1 (en
Inventor
Bernard Schott
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Diehl Verwaltungs Stiftung
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Diehl GmbH and Co
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Publication of EP0461532A1 publication Critical patent/EP0461532A1/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00Time 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
    • H01H43/02Details
    • H01H43/04Means for time setting
    • H01H43/06Means for time setting comprising separately adjustable parts for each programme step, e.g. with tappets
    • H01H43/065Means for time setting comprising separately adjustable parts for each programme step, e.g. with tappets using cams or discs supporting a plurality of individually programmable elements (Schaltreiter)

Definitions

  • the invention relates to a time slice according to the preamble of claim 1, as is known for example from DE-C-28 45 272 and can be used in electromechanical time switches (cf. US-A-2 596 330) in order to time-dependent a consumer circuit - or switch off.
  • DE-C-28 45 272 (FIG. 4) has a plate shape designed time slice is provided, whose (opposite to the transverse plane to the axis of rotation) slightly turned edge points in the direction of the circumferential edge of one of the time slices opposite stationary housing.
  • An application-oriented disadvantage is furthermore that, given the size of the slot between the outer drum surface and the adjacent inner surface of the shift tab that can be set against it, the current functional position is clearly recognizable when viewed from the front; however, this is no longer the case with radial (i.e. transverse to the axis of rotation of the time slice oriented) view, because the axially parallel position of the upper ends of the individual shift tabs remains practically the same in both angular positions.
  • the invention has for its object to design a time switch of the generic type in such a way that, with a compact structure and with a low-play switch rider holder in each switch rider functional position, both in a view longitudinally and in a view transversely to the switch disc axis of rotation an error-free recognition of the current functional position of the individual switching rider enables.
  • the U-shaped shift tabs are pushed from the rear, i.e. with yoke areas located to the rear, onto a time slice in the manner of a bell shell opening towards the rear, so that only the free front end of the outer switch tab leg is inserted into the switch case housing is visible from the front or from the side.
  • this face ends with the face-side face of the time slice and thus covers the cylindrical surface running behind the face of the disk.
  • this cylinder surface is released between the front end of the outer Wegreiter leg and the visible disc front surface; at the same time this front end of the outer Wegreiter leg is raised radially over a circumferential inclined surface from the cylinder surface mentioned and thus opens a gap which due to its shadow or due to color contrasting surfaces axially parallel front view is clearly recognizable.
  • the bell shell 12 has approximately the shape of a hollow truncated cone in view against its front end face 16.
  • the geometry of its outer lateral surface 15 is composed, however, first of all of an outer cylindrical surface 18 which is connected behind the visible end face 16. This goes along a circumferential (linear, broken or curved cross-section) inclined surface 19 in the direction of the rear bell-shell end edge 13 over, in a further at least approximately cylindrical surface 20 of larger diameter; to which a radially outwardly projecting circumferential step 21 and then a - preferably slightly convexly curved - frustoconical surface 22 are connected before the bell shell 12 ends with the rear end edge 13.
  • this inner surface 23 of the bell shell 12 extends from the rear end wall 13 forward again initially as a truncated cone surface 24, preferably parallel to the outer truncated cone surface 22 and thus now slightly concave.
  • the height of the inner truncated cone surface 24 now extends higher, up to about the middle height plane of the outer inclined surface 19, up to a radially inwardly projecting projection 25, the rear flank of which extends between the inner truncated cone surface 24 and an upwardly adjoining inner cylinder surface 27, the radial cross-sectional plane inclined upwards and towards the axis 17 in a ramp shape.
  • the inner cylindrical surface 27 of the bell shell 12 is limited at the top by a rearward transition into a face plate 28 which is more solid than the average material thickness of the bell shell 12 and which carries the visible-side time slice face 16. The latter extends in a ring around a central recess 29 in which (not shown in the drawing) hands of a clock can rotate.
  • the end plate 28 is followed by a coaxial hollow cylinder 30, the wall thickness of which corresponds approximately to the thickness of the end plate 28 and whose bore 31 does not quite have the diameter of the front plate recess 29.
  • the transition area 32 is bordered from the rear plate rear 33 to the outer surface 34 of the hollow cylinder 30 approximately as an inverted truncated cone, so that a dimensionally stable transition area 32 results from the bell shell 12 to the hollow cylinder 30.
  • the cylinder 30 In the vicinity of its rear end 35, the cylinder 30 has a toothed ring 36, for example directly molded on and rotating all around.
  • the output pinion 37 of a stationary drive circuit arranged in the time switch housing 10 can mesh in order to move the time slice 11 with its switching tabs 14 about the axis 17 relative to a scanning device 38 fixed to the housing. This scans the current functional position of the shift tab yokes 41 sliding past it radially from the outside or (as shown) axially from below.
  • the clamp-shaped, two-armed switching riders 14 have two legs 39, 40, which are connected to one another in a flexible manner parallel to the rear end edge 13 of the bell shell 12 by a yoke 41.
  • the shift tabs 14, one next to the other move from the rear in an approximately axial direction along the curved surfaces 22, 24 pushed onto the bell shell 12, so that the wider inner leg 39 engages radially in the trench which is approximately V-shaped in cross section and which rotates between the bell shell 12 and the cylinder 30 behind the transition region 32.
  • the (narrower and longer) outer leg 40 extends essentially over the entire height of the outer lateral surface 15 of the bell shell 12.
  • each of the two legs 39, 40 preferably engages on its inner sides 42, 43 with ribs 44, which are narrower toward one another and protrude toward one another in relation to the strength of the switching riders 14, in grooves 45 which extend essentially along the inner and outer truncated cone lateral surfaces 24, 22 from the rear end edge 13 of the bell shell 12.
  • the inner sides of the legs 42, 43, and preferably also the ribs 44 and grooves 45 are correspondingly curved in order to ensure good guidance during a longitudinal displacement of a switching rider 14 in the direction of the legs.
  • the U-shaped switching tabs 14, which are preferably injection molded from flexible plastic, can be spread out in a V-shape on the free leg ends.
  • a triangular recess 46 on the inside 42 of the inner leg 39 snaps, deflected via a front bevel 47 along the flank 26 in front of the inner truncated cone surface 24, over the projection 25, around the rider 14 in this rest - Lock the functional position with a positive locking (shown in the drawing on the left).
  • the end 48 of the inner leg 39 is shaped such that it does not collide mechanically with the transition region 32 between the bell shell 12 and the central cylinder 30 even in the fully inserted position of the switching rider 14.
  • the inner opposite outer leg 40 is elastically supported against the bell shell 12 due to the clamping action of the switching rider 14 in this rest position with an inner projection 49 against the circumferential inclined surface 19 of the bell shell outer surface 15, for example the recess 46 opposite the inner leg 39 , after it was spread radially outwards when the rider 14 was plugged in (when the disc 11 was not inserted into the housing 10) while sliding along the pierced outer bell-shaped outer surface 22.
  • the projection on the inside 43 of the outer leg 40 merges into a straight line 50 which is parallel to the outer pane, and which thus nestles against the adjacent generatrix of the outer cylindrical surface 18, without necessarily also being supported against it.
  • the outer leg 40 ends in a handle 51 for manual movement of the switching rider 14 along the grooves 45. As shown, this is preferably achieved by almost the radial extension of the into the housing bore 57 Immersing Wegreiter-yokes 41 overriding, ie radially outward-pointing elbow 52. So this can easily be gripped manually laterally to pull the Wegreiter 14 forward (in the rest position shown on the left).
  • the switching rider 14 is displaced backwards along the bend of the bell shell 12.
  • the projection 49 is bent radially outward from the inclined surface 19 with the U-shaped switching tab 14 spreading until the projection 49 positively engages in step 21 on the bell-shell outer surface 15, as shown in the drawing on the right.
  • the approximately radially extending step back surface 58 acts as a directional locking mechanism, so that the nose-shaped projection 49 (wider than the rib 44 or the groove 45) cannot slide back any further.
  • the front straight line 50 has on the inside 43 of the outer leg 40 in the pressed-in working position from the outer cylinder surface 18 behind the visible side End face 16 of time slice 11 is lifted off, so that a clear gap 54 now opens in relation to the rest position. While the axial position of the switching rider face 53 is not readily apparent in the front view 55, it can now be clearly seen from the gap 54 that this individual switching rider 14 is pushed into the working position.
  • the functional position shown on the right in the drawing is detected by the scanning device 38, which, as is known as such, can be a lever system for actuating an electromechanical switching path, which, depending on the position of one or more successive switching riders 14, has the corresponding one Period of time closes or opens an electrical working group.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Description

Die Erfindung betrifft eine Zeitscheibe gemäß dem Oberbegriff des Anspruches 1, wie sie etwa aus der DE-C- 28 45 272 bekannt und in elektromechanischen Schaltuhren (vgl. US-A- 2 596 330) einsetzbar ist, um einen Verbraucher-Stromkreis zeitabhängig ein- bzw. auszuschalten.The invention relates to a time slice according to the preamble of claim 1, as is known for example from DE-C-28 45 272 and can be used in electromechanical time switches (cf. US-A-2 596 330) in order to time-dependent a consumer circuit - or switch off.

Um die Funktionsstellung der einzelnen, bestimmten Zeitspannen zugeordneten, in ihren Längsrichtungen einstellbaren Schaltreiter sowohl in der wie auch quer zu der Rotations-Achse der Zeitscheibe leicht erkennen zu können, ist in der DE-C- 28 45 272 (Fig. 4) eine tellerförmig ausgestaltete Zeitscheibe vorgesehen, deren (gegenüber der Querebene zur Rotations-Achse) etwas angestellter Rand in Richtung auf die umlaufende Kante eines der Zeitscheibe gegenüber stationären Gehäuses weist. Die einzelnen, nebeneinander unter elastischer Klemmwirkung, auf den schräg vorstehenden Scheiben-Rand aufgeschobenen U-förmigen Schaltreiter sind dafür ausgelegt, in der eingeschobenen Funktionsstellung zwar den Übergangs-Abschnitt vom Teller-Rand zum Teller-Mittelteil, nicht aber den umgebenden Gehäuse-Rand zu überdecken; während in der anderen, nach vorne gezogenen Funktionsstellung das Stirnende des innenliegenden Schaltreiter-Schenkels den angrenzenden Bereich des Teller-Mittelteils freigibt, während dieser Schaltreiter dann mit seinem Jochbereich den umlaufenden Gehäuserand überragt. Nachteilig an dieser Lösung ist insbesondere der große radiale und axiale Raumbedarf für die Ausbildung der Zeitscheiben-Schaltreiter-Kombination aufgrund des schräg nach außen vorstehenden Teller-Randes zur Aufnahme des sichtseitig aufzusteckenden Schaltreiter-Kranzes. Nachteilig ist auch, daß der Jochbereich des Schaltreiters in allen beiden Funktionsstellungen die Ebene der Sichtfläche auf dem umgebenden Gehäusebereich überragt, was leicht zu visuellen Fehlinterpretationen hinsichtlich der momentanen Funktionsstellung führen kann. Konstruktiv von Nachteil ist ferner, daß über ein integriertes Richtgesperre sichergestellt werden muß, daß der sichtseitig aufgesetzte Schaltreiter bei der Verlagerung in die gezogene Funktionsstellung nicht ungewollt wieder vom angestellten Rand der Zeitscheibe abgezogen wird.In order to be able to easily recognize the functional position of the individual shift timers assigned in their longitudinal directions, both in and across the axis of rotation of the time slice, DE-C-28 45 272 (FIG. 4) has a plate shape designed time slice is provided, whose (opposite to the transverse plane to the axis of rotation) slightly turned edge points in the direction of the circumferential edge of one of the time slices opposite stationary housing. The individual, next to each other with elastic clamping effect, pushed onto the obliquely protruding disc edge U-shaped shift tabs are designed to admit the transition section from the plate edge to the plate middle part in the inserted functional position, but not the surrounding housing edge cover up; while in the other, forward-drawn functional position, the front end of the inner shift rider leg releases the adjacent area of the plate middle part, while this shift rider then with its yoke area towering around the circumference of the housing. A disadvantage of this solution is, in particular, the large radial and axial space required for the formation of the time-slice-shift rider combination due to the plate edge protruding outward at an angle to accommodate the shift rider ring to be clipped on the visible side. It is also disadvantageous that the yoke area of the switching rider projects beyond the plane of the visible surface on the surrounding housing area in all two functional positions, which can easily lead to visual misinterpretations with regard to the current functional position. Another disadvantage of the design is that an integrated directional lock must be used to ensure that the shift tab attached on the visible side is not inadvertently removed from the employed edge of the time slice when it is moved into the drawn functional position.

Aus der EP-A- 0 123 122 ist eine dagegen wesentlich kleinbauerndere Zeitscheibe für Schaltuhren bekannt, bei der die Schaltreiter längs der Außenmantelfläche einer trommelförmigen Zeitscheibe angeordnet und über ein Biegegelenk am rückwärtigen Stirnende der Trommelwandung mit dieser verbunden sind. Je nachdem, ob ein Schaltreiter an die Trommel-Außenmantelfläche herangeklappt oder dieser radial abgespreizt ist, kann ein die Trommelwand durchgreifender Hebel einen Schaltmechanismus betätigen. Nachteilig ist allerdings bei dieser Lösung der hohe konstruktive Aufwand für die Gewährleistung eindeutig rastender Funktionsstellungen der einzelnen gegenüber der Trommel-Außenmantelfläche verschwenkbaren Schaltreiter. Von anwendungsorientiertem Nachteil ist darüber hinaus, daß zwar aufgrund der Größe des Schlitzes zwischen der Trommel-Außenmantelfläche und der benachbarten Innenfläche des dagegen anstellbaren Schaltreiters bei frontseitiger Ansicht die momentane Funktionsstellung eindeutig erkennbar ist; was jedoch überhaupt nicht mehr der Fall ist bei radialer (also quer zur Rotationsachse der Zeitscheibe orientierter) Ansicht, weil die achsparallele Position der oberen Stirnenden der einzelnen Schaltreiter in beiden Winkelstellungen praktisch dieselbe bleibt.From EP-A-0 123 122, on the other hand, a much smaller-sized time slice for time switches is known, in which the switching riders are arranged along the outer circumferential surface of a drum-shaped time slice and are connected to the drum wall via a flexible joint at the rear end of the drum wall. Depending on whether a switching rider is folded against the outer surface of the drum or is radially spread apart, a lever penetrating the drum wall can actuate a switching mechanism. A disadvantage of this solution, however, is the high design effort required to ensure clearly latching functional positions of the individual switching riders which can be pivoted relative to the outer surface of the drum. An application-oriented disadvantage is furthermore that, given the size of the slot between the outer drum surface and the adjacent inner surface of the shift tab that can be set against it, the current functional position is clearly recognizable when viewed from the front; however, this is no longer the case with radial (i.e. transverse to the axis of rotation of the time slice oriented) view, because the axially parallel position of the upper ends of the individual shift tabs remains practically the same in both angular positions.

In Erkenntnis dieser Gegebenheiten liegt der Erfindung die Aufgabe zugrunde, eine Schaltuhren-Zeitscheibe gattungsgemäßer Art derart auszulegen, daß sie, bei gedrängtem Aufbau und bei in jeder Schaltreiter-Funktionsstellung spielarmer Schaltreiter-Halterung sowohl in Ansicht längs als auch in Ansicht quer zur Schaltscheiben-Rotationsachse eine irrtumsfreie Erkennbarkeit der momentanen Funktionsstellung der einzelnen Schaltreiter ermöglicht.In recognition of these circumstances, the invention has for its object to design a time switch of the generic type in such a way that, with a compact structure and with a low-play switch rider holder in each switch rider functional position, both in a view longitudinally and in a view transversely to the switch disc axis of rotation an error-free recognition of the current functional position of the individual switching rider enables.

Diese Aufgabe ist erfindungsgemäß im wesentlichen dadurch gelöst, daß die gattungsgemäße Schaltscheibe gemäß dem Kennzeichnungsteil des Anspruches 1 ausgelegt ist.This object is essentially achieved in that the generic switching disc is designed according to the characterizing part of claim 1.

Nach dieser Lösung werden die U-förmigen Schaltreiter von rückwärts, also mit rückwärtig gelegenen Jochbereichen, auf eine Zeitscheibe nach Art einer rückwärtig sich öffnenden Glockenschale aufgeschoben, so daß bei in das Schaltuhren-Gehäuse eingesetzter Schaltscheibe jeweils nur das freie Stirnende des äußeren Schaltreiter-Schenkels von vorne bzw. von der Seite sichtbar ist. In der einen Funktionsstellung schließt dieses Stirnende mit der sichtseitigen Stirnfläche der Zeitscheibe ab und bedeckt somit die hinter der Scheiben-Stirnfläche umlaufende Zylinderfläche. In der dagegen axial nach rückwärts verlagerten, also anderen Funktionsstellung wird diese Zylinderfläche zwischen dem Stirnende des äußeren Schaltreiter-Schenkels und der sichtseitigen Scheiben-Stirnfläche freigegeben; wobei gleichzeitig dieses Stirnende des äußeren Schaltreiter-Schenkels über eine umlaufende Schrägfläche von der erwähnten Zylinderfläche radial abgehoben wird und so einen Spalt öffnet, der aufgrund seines Schattenwurfes bzw. aufgrund farblich kontrastierender Flächen bei achsparalleler Stirnansicht deutlich erkennbar ist.According to this solution, the U-shaped shift tabs are pushed from the rear, i.e. with yoke areas located to the rear, onto a time slice in the manner of a bell shell opening towards the rear, so that only the free front end of the outer switch tab leg is inserted into the switch case housing is visible from the front or from the side. In one functional position, this face ends with the face-side face of the time slice and thus covers the cylindrical surface running behind the face of the disk. In the other position, which is shifted axially backwards, that is to say in a different position, this cylinder surface is released between the front end of the outer Schaltreiter leg and the visible disc front surface; at the same time this front end of the outer Schaltreiter leg is raised radially over a circumferential inclined surface from the cylinder surface mentioned and thus opens a gap which due to its shadow or due to color contrasting surfaces axially parallel front view is clearly recognizable.

Durch Führung der Schaltreiter-Schenkel in Nuten an der Innen- und/oder Außenmantelfläche des glockenschalenförmigen Teiles der Zeitscheibe ist eine spielfreie Halterung der Schaltreiter unabhängig davon sichergestellt, ob das freie Stirnende des äußeren Schaltreiter-Schenkels gerade gegen die Zylindermantelfläche in der Umgebung der Schaltscheiben-Sichtfläche anliegt, oder aber in der anderen Funktionsstellung gerade nicht.By guiding the shift rider legs in grooves on the inner and / or outer surface of the bell-shaped part of the time slice, play-free mounting of the shift riders is ensured regardless of whether the free front end of the outer shift rider leg is against the cylinder surface in the vicinity of the shift disk. Visible surface is present, or not in the other functional position.

Weil der Schaltreiter das rückwärtige Stirnende der Glockenschale mit seinem U-Joch Umgreift, kann er nicht irrtümlich nach vorne herausgezogen werden. Eine ungewollte Demontage der Aufsetz-Richtung entgegen (also vom Sichtbereich der Schaltscheibe fort) ist dadurch unterbunden, daß bei ins Gehäuse eingesetzter Schaltscheibe der Bewegungsweg nach rückwärts durch gehäusefeste Konstruktionselemente begrenzt ist, wenn der Schaltreiter durch ungeplant starken Druck über seine untere Raststellung hinausgeschoben werden sollte.Because the shift rider grips the rear end of the bell shell with its U-yoke, it cannot be pulled forward by mistake. Unintentional disassembly in the opposite direction (i.e. away from the visible area of the switching disc) is prevented by the fact that the movement path backwards when the switching disc is inserted into the housing is limited by structural elements fixed to the housing if the switching rider should be pushed beyond its lower locking position by unplanned strong pressure .

Zusätzliche Alternativen und Weiterbildungen sowie weitere Merkmale und Vorteile der Erfindung ergeben sich aus den weiteren Ansprüchen und, auch unter Berücksichtigung der Darlegungen in der Zusammenfassung, aus nachstehender Beschreibung eines in der Zeichnung unter Beschränkung auf das Wesentliche etwa maßstabsgerecht skizzierten bevorzugten Realisierungsbeispiels zur erfindungsgemäßen Lösung. Die einzige Figur der Zeichnung zeigt im Axialschnitt eine Schaltuhr-Zeitscheibe mit den beiden in der Schnittebene gelegenen Schaltreitern, die unterschiedliche Funktions- oder Schaltstellungen einnehmen.Additional alternatives and further developments as well as further features and advantages of the invention result from the further claims and, also taking into account the explanations in the summary, from the following description of a preferred implementation example for the solution according to the invention, which is sketched to scale and limited to the essentials. The only figure in the drawing shows in axial section a time switch with the two switching tabs located in the sectional plane, which assume different functional or switching positions.

Die skizzierte, rückwärtig in ein Schaltuhren-Gehäuse 10 eintauchende, Schaltuhren-Zeitscheibe 11 weist im wesentlichen die Form einer axial durchbohrten Glockenschale 12 auf, deren rückwärtiger Stirnrand 13 von schmalen U-förmigen Schaltreitern 14 umgriffen ist. Diese sind einander dicht benachbart längs der Peripherie der Glockenschale 12 angeordnet; in der Zeichnung sind jedoch nur zwei einander diametral gegenüber gelegene Schaltreiter 14 dargestellt.The sketched time switch disk 11, which plunges into a timer housing 10 at the rear, essentially has the shape of a axially pierced bell shell 12, the rear end edge 13 is encompassed by narrow U-shaped switching tabs 14. These are arranged closely adjacent to one another along the periphery of the bell shell 12; in the drawing, however, only two shift tabs 14 diametrically opposite one another are shown.

Die Glockenschale 12 weist in Ansicht gegen ihre vordere Stirnfläche 16 insgesamt etwa die Form eines Hohlkegelstumpfes auf. Die Geometrie ihrer Außenmantelfläche 15 setzt sich im einzelnen jedoch zusammen aus zunächst einer hinter der sichtseitigen Stirnfläche 16 sich anschließenden äußeren Zylinderfläche 18. Die geht längs einer umlaufenden (im Querschnitt linearen, gebrochenen oder gewölbten) Schrägfläche 19 in Richtung auf den rückwärtigen Glockenschalen-Stirnrand 13 über, in eine weitere wenigstens angenähert zylindrische Fläche 20 größeren Durchmessers; an welche sich rückwärtig eine radial nach außen vorspringende umlaufende Stufe 21 und dann eine - vorzugsweise leicht konvex vorgewölbte - Kegelstumpfmantelfläche 22 anschließen, ehe die Glockenschale 12 mit dem rückwärtigen Stirnrand 13 endet. Dieser verläuft vorzugsweise etwa normal zur äußeren Kegelstumpfmantelfläche 22, und somit entsprechend geneigt gegenüber dem Lot auf die Scheiben-Achse 17, bis zur Innenmantelfläche 23 der Glockenschale 12. Wie aus der Zeichnung ersichtlich, erstreckt diese Innenmantelfläche 23 der Glockenschale 12 sich von der rückwärtigen Stirnwand 13 nach vorne zunächst wieder als Kegelstumpfmantelfläche 24, vorzugsweise parallel zur äußeren Kegelstumpfmantelfläche 22 und somit nun leicht konkav gewölbt. Allerdings reicht die Höhenerstreckung der inneren Kegelstumpfmantelfläche 24 nun höher, bis etwa in die mittlere Höhenebene der äußeren Schrägfläche 19, bis zu einem radial nach innen ragenden Vorsprung 25. Dessen rückwärtige Flanke 26 verläuft, zwischen der inneren Kegelstumpfmantelfläche 24 und einer nach oben sich anschließenden inneren Zylinderfläche 27, der radialen Querschnittsebene gegenüber nach oben und zur Achse 17 hin rampenförmig geneigt. Die innere Zylinderfläche 27 der Glockenschale 12 ist nach oben hin begrenzt durch rückwärtigen Übergang in eine, gegenüber der durchnittlichen Materialstärke der Glockenschale 12, massivere Stirnplatte 28, die die sichtseitige Zeitscheiben-Stirnfläche 16 trägt. Letztere erstreckt sich ringförmig um eine zentrale Ausnehmung 29, in der (zeichnerisch nicht berücksichtigt) Zeiger einer Uhr umlaufen können. Hinter der Ausnehmung 29 schließt sich an die Stirnplatte 28 ein koaxialer Hohl-Zylinder 30 an, dessen Wandstärke etwa der Stärke der Stirnplatte 28 entspricht und dessen Bohrung 31 nicht ganz den Durchmesser der frontseitigen Stirnplatten-Ausnehmung 29 aufweist. Längs deren unterer Peripherie ist der Übergangsbereich 32 von der Stirnplatten-Rückseite 33 zur Außenmantelfläche 34 des Hohl-Zylinders 30 etwa als umgekehrter Kegelstumpf berandet, so daß sich ein formstabiler Übergangsbereich 32 von der Glockenschale 12 zum Hohl-Zylinder 30 ergibt.The bell shell 12 has approximately the shape of a hollow truncated cone in view against its front end face 16. The geometry of its outer lateral surface 15 is composed, however, first of all of an outer cylindrical surface 18 which is connected behind the visible end face 16. This goes along a circumferential (linear, broken or curved cross-section) inclined surface 19 in the direction of the rear bell-shell end edge 13 over, in a further at least approximately cylindrical surface 20 of larger diameter; to which a radially outwardly projecting circumferential step 21 and then a - preferably slightly convexly curved - frustoconical surface 22 are connected before the bell shell 12 ends with the rear end edge 13. This preferably runs approximately normal to the outer truncated cone surface 22, and thus correspondingly inclined with respect to the solder on the disk axis 17, to the inner surface 23 of the bell shell 12. As can be seen from the drawing, this inner surface 23 of the bell shell 12 extends from the rear end wall 13 forward again initially as a truncated cone surface 24, preferably parallel to the outer truncated cone surface 22 and thus now slightly concave. However, the height of the inner truncated cone surface 24 now extends higher, up to about the middle height plane of the outer inclined surface 19, up to a radially inwardly projecting projection 25, the rear flank of which extends between the inner truncated cone surface 24 and an upwardly adjoining inner cylinder surface 27, the radial cross-sectional plane inclined upwards and towards the axis 17 in a ramp shape. The inner cylindrical surface 27 of the bell shell 12 is limited at the top by a rearward transition into a face plate 28 which is more solid than the average material thickness of the bell shell 12 and which carries the visible-side time slice face 16. The latter extends in a ring around a central recess 29 in which (not shown in the drawing) hands of a clock can rotate. Behind the recess 29, the end plate 28 is followed by a coaxial hollow cylinder 30, the wall thickness of which corresponds approximately to the thickness of the end plate 28 and whose bore 31 does not quite have the diameter of the front plate recess 29. Along its lower periphery, the transition area 32 is bordered from the rear plate rear 33 to the outer surface 34 of the hollow cylinder 30 approximately as an inverted truncated cone, so that a dimensionally stable transition area 32 results from the bell shell 12 to the hollow cylinder 30.

Der Zylinder 30 weist in der Nähe seines rückwärtigen Stirnendes 35 einen, beispielsweise direkt angespritzten und außen umlaufenden, Zahnkranz 36 auf. Mit diesem kann das Abtriebs-Ritzel 37 einer stationär im Schaltuhren-Gehäuse 10 angeordneten zeithaltenden Antriebsschaltung kämmen, um die Zeitscheibe 11 mit ihren Schaltreitern 14 relativ zu einer gehäusefesten Abtasteinrichtung 38 um die Achse 17 zu bewegen. Dieses tastet radial von außen oder (wie dargestellt) axial von unten die momentane Funktionsstellung der an ihr vorbeigleitenden Schaltreiter-Joche 41 ab.In the vicinity of its rear end 35, the cylinder 30 has a toothed ring 36, for example directly molded on and rotating all around. With this, the output pinion 37 of a stationary drive circuit arranged in the time switch housing 10 can mesh in order to move the time slice 11 with its switching tabs 14 about the axis 17 relative to a scanning device 38 fixed to the housing. This scans the current functional position of the shift tab yokes 41 sliding past it radially from the outside or (as shown) axially from below.

Die klammerförmig-zweiarmigen Schaltreiter 14 weisen zwei Schenkel 39, 40 auf, die parallel zum rückwärtigen Stirnrand 13 der Glockenschale 12 durch ein Joch 41 biegeelastisch miteinander verbunden sind. Die Schaltreiter 14 werden, einer neben dem anderen, von rückwärts in etwa axialer Richtung längs der gewölbten Flächen 22, 24 auf die Glockenschale 12 aufgeschoben, so daß der breitere innere Schenkel 39 in den im Querschnitt etwa V-förmigen Graben radial eingreift, der zwischen der Glockenschale 12 und dem Zylinder 30 hinter dem Übergangsbereich 32 umläuft. Dagegen erstreckt sich der (wie dargestellt schmalere und längere) äußere Schenkel 40 im wesentlichen über die gesamte Höhe der Außenmantelfläche 15 der Glockenschale 12. Für eine seitliche Führung gegen Verkippen aus der achsparallelen Radialebene heraus greift vorzugsweise jeder der beiden Schenkel 39, 40 an seinen Innenseiten 42, 43 mit gegenüber der Stärke der Schaltreiter 14 schmaleren, aufeinander zu vorstehenden Rippen 44 in Nuten 45 ein, die sich im wesentlichen längs der inneren und äußeren Kegelstumpfmantelflächen 24, 22 vom rückwärtigen Stirnrand 13 der Glockenschale 12 her erstrecken. Im Falle nicht-linearer Erzeugender der Kegelstumpfmantelflächen 24, 22 verlaufen auch die Schenkel-Innenseiten 42, 43, und vorzugsweise auch die Rippen 44 und Nuten 45, entsprechend gebogen, um während einer Längsverschiebung eines Schaltreiters 14 in Schenkel-Richtung eine gute Führung sicherzustellen.The clamp-shaped, two-armed switching riders 14 have two legs 39, 40, which are connected to one another in a flexible manner parallel to the rear end edge 13 of the bell shell 12 by a yoke 41. The shift tabs 14, one next to the other, move from the rear in an approximately axial direction along the curved surfaces 22, 24 pushed onto the bell shell 12, so that the wider inner leg 39 engages radially in the trench which is approximately V-shaped in cross section and which rotates between the bell shell 12 and the cylinder 30 behind the transition region 32. In contrast, the (narrower and longer) outer leg 40 extends essentially over the entire height of the outer lateral surface 15 of the bell shell 12. For lateral guidance against tilting out of the axially parallel radial plane, each of the two legs 39, 40 preferably engages on its inner sides 42, 43 with ribs 44, which are narrower toward one another and protrude toward one another in relation to the strength of the switching riders 14, in grooves 45 which extend essentially along the inner and outer truncated cone lateral surfaces 24, 22 from the rear end edge 13 of the bell shell 12. In the case of non-linear generators of the truncated cone outer surfaces 24, 22, the inner sides of the legs 42, 43, and preferably also the ribs 44 and grooves 45, are correspondingly curved in order to ensure good guidance during a longitudinal displacement of a switching rider 14 in the direction of the legs.

Die vorzugsweise aus biegeelastischem Kunststoff gespritzten U-förmigen Schaltreiter 14 können an den freien Schenkelenden V-förmig gespreizt werden. Beim Aufschieben eines jeden Schaltreiters 14 schnappt deshalb eine dreieckförmige Ausnehmung 46 an der Innenseite 42 des inneren Schenkels 39, ausgelenkt über eine Stirn-Fase 47 längs der Flanke 26 vor der inneren Kegelstumpfmantelfläche 24, über den Vorsprung 25, um den Reiter 14 in dieser Ruhe-Funktionsstellung formschlüssig rastend zu arretieren (in der Zeichnung links dargestellt). Im übrigen ist das Ende 48 des inneren Schenkels 39, wie dargestellt, so geformt, daß es auch in ganz eingeschobener Stellung des Schaltreiters 14 nicht mit dem Übergangsbereich 32 zwischen der Glockenschale 12 und dem zentralen Zylinder 30 mechanisch kollidiert.The U-shaped switching tabs 14, which are preferably injection molded from flexible plastic, can be spread out in a V-shape on the free leg ends. When each rider 14 is slid on, a triangular recess 46 on the inside 42 of the inner leg 39 snaps, deflected via a front bevel 47 along the flank 26 in front of the inner truncated cone surface 24, over the projection 25, around the rider 14 in this rest - Lock the functional position with a positive locking (shown in the drawing on the left). For the rest, the end 48 of the inner leg 39, as shown, is shaped such that it does not collide mechanically with the transition region 32 between the bell shell 12 and the central cylinder 30 even in the fully inserted position of the switching rider 14.

Der dem inneren gegenüber äußere Schenkel 40 stützt sich aufgrund der Klammerwirkung des Schaltreiters 14 in dieser Ruhestellung mit einem inneren Vorsprung 49 gegen die umlaufende Schrägfläche 19 der Glockenschalen-Außenmantelfläche 15, etwa der Ausnehmung 46 am inneren Schenkel 39 gegenüber, elastisch gegen die Glockenschale 12 ab, nachdem er beim Aufstecken des Reiters 14 (bei nicht in das Gehäuse 10 eingesetzter Scheibe 11) unter Gleiten längs der eingestochenen äußeren Glocken-Mantelfläche 22 radial nach außen abgespreizt wurde. Nach vorne geht der Vorsprung an der Innenseite 43 des äußeren Schenkels 40 in eine zur Scheiben-Außenparallele Gerade 50 über, die sich so an die benachbarte Erzeugende der äußeren Zylinderfläche 18 anschmiegt, ohne sich unbedingt auch gegen diese abzustützen. Im Bereiche neben der sichtseitigen Stirnfläche 16 der Zeitscheibe 11 endet der äußere Schenkel 40 in einer Handhabe 51 zur manuellen Bewegung des Schaltreiters 14 längs der Nuten 45. Vorzugsweise ist die, wie dargestellt, realisiert durch ein fast die Radialerstreckung des in die Gehäuse-Bohrung 57 eintauchenden Schaltreiter-Joches 41 überrangendes, also radial nach außen weisendes Winkelstück 52. So kann das leicht manuell seitlich hintergriffen werden, um den Schaltreiter 14 nach vorne (in die links dargestellte Ruhestellung) zu ziehen.The inner opposite outer leg 40 is elastically supported against the bell shell 12 due to the clamping action of the switching rider 14 in this rest position with an inner projection 49 against the circumferential inclined surface 19 of the bell shell outer surface 15, for example the recess 46 opposite the inner leg 39 , after it was spread radially outwards when the rider 14 was plugged in (when the disc 11 was not inserted into the housing 10) while sliding along the pierced outer bell-shaped outer surface 22. Towards the front, the projection on the inside 43 of the outer leg 40 merges into a straight line 50 which is parallel to the outer pane, and which thus nestles against the adjacent generatrix of the outer cylindrical surface 18, without necessarily also being supported against it. In the area next to the face-side end face 16 of the time slice 11, the outer leg 40 ends in a handle 51 for manual movement of the switching rider 14 along the grooves 45. As shown, this is preferably achieved by almost the radial extension of the into the housing bore 57 Immersing Schaltreiter-yokes 41 overriding, ie radially outward-pointing elbow 52. So this can easily be gripped manually laterally to pull the Schaltreiter 14 forward (in the rest position shown on the left).

Wenn dagegen auf die sichtseitige Stirnfläche 53 des Schaltreiters 14, also seines äußeren Schenkels 40 bzw. seines Winkelstückes 52, achsparalleler Druck ausgeübt wird, dann wird der Schaltreiter 14 längs der Biegung der Glockenschale 12 nach rückwärts verlagert. Dabei wird der Vorsprung 49 von der Schrägfläche 19 unter Spreizung des U-förmigen Schaltreiters 14 radial nach außen gebogen, bis der Vorsprung 49 formschlüssig in die Stufe 21 auf der Glockenschalen-Außenmantelfläche 15 einfällt, wie in der Zeichnung rechts dargestellt. Die etwa radial verlaufende Stufen-Rückfläche 58 wirkt als Richtgesperre, so daß der (gegenüber der Rippe 44 bzw. der Nut 45 breitere) nasenförmige Vorsprung 49 nicht weiter zurückgleiten kann.If, on the other hand, axially parallel pressure is exerted on the face-side end face 53 of the switching rider 14, that is to say its outer leg 40 or its angle piece 52, then the switching rider 14 is displaced backwards along the bend of the bell shell 12. The projection 49 is bent radially outward from the inclined surface 19 with the U-shaped switching tab 14 spreading until the projection 49 positively engages in step 21 on the bell-shell outer surface 15, as shown in the drawing on the right. The approximately radially extending step back surface 58 acts as a directional locking mechanism, so that the nose-shaped projection 49 (wider than the rib 44 or the groove 45) cannot slide back any further.

Sollten jedoch durch Kraftaufwendung auf das Reiter-Stirnende 53 die Schenkel 39-40 gespreizt werden, dann wird die Reiter-Bewegung nach rückwärts bei eingebauter Zeitscheibe 11 durch den Boden 59 der dahintergelegenen Gehäuse-Bohrung 52 begrenzt, der Schaltreiter 14 kann also nicht irrtümlich über seine Arbeitsstellung (rechts in der Zeichnung) wieder von der Scheibe 11 entfernt werden.However, should the legs 39-40 be spread apart by exerting force on the front end 53 of the rider, then the backward movement of the rider is limited by the bottom 59 of the housing bore 52 behind it with the time slice 11 installed, so the switching rider 14 cannot erroneously over his working position (right in the drawing) can be removed from the disc 11 again.

Wegen des nun größeren radialen Abstandes von der Achse 17, verglichen mit der Nasen-Abstützung auf der Schrägfläche 19 in der Ruhestellung, hat die vordere Gerade 50 an der Innenseite 43 des äußeren Schenkels 40 in der eingedrückten Arbeitsstellung von der äußeren Zylinderfläche 18 hinter der sichtseitigen Stirnfläche 16 der Zeitscheibe 11 abgehoben, so daß sich hier gegenüber der Ruhestellung nun ein deutlicher Spalt 54 öffnet. Während bei stirnseitiger Ansicht 55 die Axialstellung der Schaltreiter-Stirnfläche 53 nicht ohne weiteres ersichtlich ist, ist nun an dem Spalt 54 deutlich erkennbar, daß dieser individuelle Schaltreiter 14 in die Arbeitsstellung geschoben ist. Das gleiche ist bei radialer Ansicht 56 in als solcher bekannter Weise dadurch ohne weiters erkennbar, daß der entsprechende Bereich der äußeren Zylinderfläche 18 von der Innenseite 43 des äußeren Schenkels 40 durch achsparallele Verschiebung freigegeben wurde. Für diese visuelle Interpretation ist eine Orientierung an einer gehäusefesten Markierung nicht nötig, so daß die Handhaben 51 manuell gut zugänglich weit vor dem Gehäuse 10 angeordnet sein können.Because of the now greater radial distance from the axis 17, compared to the nose support on the inclined surface 19 in the rest position, the front straight line 50 has on the inside 43 of the outer leg 40 in the pressed-in working position from the outer cylinder surface 18 behind the visible side End face 16 of time slice 11 is lifted off, so that a clear gap 54 now opens in relation to the rest position. While the axial position of the switching rider face 53 is not readily apparent in the front view 55, it can now be clearly seen from the gap 54 that this individual switching rider 14 is pushed into the working position. The same is readily apparent in a radial view 56 in a manner known per se in that the corresponding area of the outer cylinder surface 18 has been released from the inside 43 of the outer leg 40 by displacement parallel to the axis. For this visual interpretation, an orientation on a marking fixed to the housing is not necessary, so that the handles 51 can be arranged manually well accessible far in front of the housing 10.

Die in der Zeichnung rechts dargestellte Funktionsstellung wird von der Abtasteinrichtung 38 erfaßt, bei der es sich wie als solches bekannt, um ein Hebelsystem zur Betätigung einer elektromechanischen Schaltstrecke handeln kann, die, je nach der Stellung eines oder mehrerer aufeinanderfolgender Schaltreiter 14, über die entsprechende Zeitspanne einen elektrischen Arbeitskreis schließt oder öffnet.The functional position shown on the right in the drawing is detected by the scanning device 38, which, as is known as such, can be a lever system for actuating an electromechanical switching path, which, depending on the position of one or more successive switching riders 14, has the corresponding one Period of time closes or opens an electrical working group.

Claims (11)

  1. Time switch time disk (11), of which the front edge (13) rotating about an axis (17) is encompassed by U-shaped switching slides (14) disposed next to each other, these switching slides (14) being displaceable in their longitudinal direction between defined functional stop positions characterized in that,
    the time disk (11) has approximately the shape of a rearward open bell dome (12), the outer shell surface (15) of which, which is connected behind the front face visual surface (16) is covered in the one functional position of a switching slide (14) by the free front end (53) of the outer switching slide side piece (40) located in a closely adjacent position which, with the displacement of the switching slide (14) from the disk face (16) on the visual side rearwards, can be raised radially along an oblique surface (19) from the switch disk outer shell surface (15).
  2. Time disk according to claim 1,
    characterized in that the outer switching slide side piece (40) which can be raised from it radially in the vicinity of the yoke (41) encompassing the rearward bell front edge (13) is run in the switching slide longitudinal direction in a form-closed manner along the outer shell surface (22) of the bell dome (12).
  3. Time disk according to claim 1 or 2,
    characterized in that the inner side (42) of the inner switching slide side piece (39) is run along the inner shell surface (24) of the bell dome (12) in the switching slide longitudinal direction in a form-closed manner.
  4. Time disk according to one of the preceding claims
    characterized in that stop pairing pieces (rearward stage 21, protrusion 49; inner protrusion 25, recess 46) are formed offset in relation to each other at the outer and inner shell surfaces (15,23) of the bell dome (12) in the direction of the axis (17) for the various functional positions of the switching slide (14).
  5. Time disk according to one of the preceding claims,
    characterized in that the shell surfaces (22,24) of the bell dome (12) located in front of the rearward front edge (13) and the adjacent surfaces of the switching slide side pieces (39,40) have a curved pattern which increasingly approximates to the parallels to the axis (17) in the direction of the rearward bell dome front edge (13).
  6. Time disk according to one of the preceding claims,
    characterized in that the inner side (43) of the outer switching slide side piece (40) and/or the inner side (42) of the inner switching slide side piece (39) are provided with longitudinal ribs (44) protruding towards the switching slide internal part which engage in grooves (45) between functional position catches and the rearward bell dome front edge (13) on the bell dome shell surfaces (22,24).
  7. Time disk according to one of the preceding claims,
    characterized in that its switching slides (14) are provided with short wide inner side pieces (39) but with longer, narrower outer side pieces (40) which are provided in the area of their free front ends (53) with radially angular handles (52).
  8. Time disk according to one of the preceding claims,
    characterized in that a protrusion (49) at the inner side (43) of a switching slide side piece (40) is designed both as functional position catch and directional locking mechanism barb.
  9. Time disk according to one of the preceding claims,
    characterized in that it is provided behind its front face (16) on the visual side inside the bell dome (12) with a concentric cylinder (30) which has a toothed ring (36) for time-holding operation about the axis of rotation (17).
  10. Time disk according to one of the preceding claims,
    characterized in that it is provided behind its front face (16) on the visual side with a concentric recess (29) in front of a hollow cylinder (30) which is however of smaller diameter.
  11. Time disk according to one of the preceding claims,
    characterized in that the path of displacement of the switching slides (14) is limited by a structural part located at the housing (10) when the lower stop position is surmounted.
EP91109151A 1990-06-11 1991-06-05 Switch disc of a timer Expired - Lifetime EP0461532B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9006564U DE9006564U1 (en) 1990-06-11 1990-06-11 Timer time disk
DE9006564U 1990-06-11

Publications (2)

Publication Number Publication Date
EP0461532A1 EP0461532A1 (en) 1991-12-18
EP0461532B1 true EP0461532B1 (en) 1994-08-31

Family

ID=6854580

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91109151A Expired - Lifetime EP0461532B1 (en) 1990-06-11 1991-06-05 Switch disc of a timer

Country Status (2)

Country Link
EP (1) EP0461532B1 (en)
DE (2) DE9006564U1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH531788A (en) * 1971-05-12 1972-12-15 Landis & Gyr Ag Cam disk with at least one adjustable indexing tab, in particular a program disk
DE2655540C2 (en) * 1975-12-10 1982-02-18 Syntronic AG, Mauren "Time program switch, especially for washing, dishwashing and drying machines"
DE2813194C2 (en) * 1978-03-25 1986-09-11 Westdeutsche Elektrogerätebau GmbH, 4770 Soest Disc-shaped program carrier
DE3011895C2 (en) * 1980-03-25 1982-08-26 Heliowatt Werke Elektrizitäts- Gesellschaft mbH, 1000 Berlin Switching disc with switch tabs
DE3310934C2 (en) * 1983-03-25 1987-04-02 Dieter Gräßlin Feinwerktechnik, 7742 St Georgen Program carrier for switching time measuring devices
DE3321539A1 (en) * 1983-06-15 1984-12-20 Diehl GmbH & Co, 8500 Nürnberg SWITCHING DISC OF A TIMER

Also Published As

Publication number Publication date
DE9006564U1 (en) 1991-10-10
DE59102708D1 (en) 1994-10-06
EP0461532A1 (en) 1991-12-18

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